Point rate 64000 points/s&nbsp;Distance resolution 4.5mm&nbsp;FOV 360°x96°&nbsp;Scan distance 30m&nbsp;Performance increased by 200%&nbsp;Open source address: <a dir="ltr" href="https://t.co/u1Hr2wB1T2" rel="noopener noreferrer nofollow" target="_blank" id="isPasted">https://github.com/unitreerobotics/point_lio_unilidar…</a>

New Upgrade Released: 200% Increase in L2 4D LiDAR Performance $419 🥳


New Upgrade Released: L2 4D LiDAR Doubles Performance for 419 USD

Two new kinds of on-skin electronics allow users to build and customize them directly on the body – with potential applications in biometric sensing, medical monitoring, interactive prosthetic makeup and more.<a href="https://www.hybridbody.human.cornell.edu/#/skinlink/">SkinLink</a>, developed by the&nbsp;<a href="https://www.hybridbody.human.cornell.edu/">Hybrid Body Lab</a> led by&nbsp;<a href="https://www.human.cornell.edu/people/hk932">Cindy Hsin-Liu Kao</a>, assistant professor of human centered design in the College of Human Ecology, is an on-skin electronic interface that can be fabricated right on the body, providing flexibility in design depending on the intended use. And&nbsp;<a href="https://www.hybridbody.human.cornell.edu/#/ecskin/">ECSkin</a> is an electrochromic display interface that also can be fabricated in situ, and features modular design through tiles that can be arranged as desired.Some of the potential applications for SkinLink include vital-sign and posture monitoring, proximity sensing and body art.“Both of these projects are modular prototyping toolkits, to enable much more intricate on-skin circuitry prototyping,” Kao said. “And users are able to build the circuitry directly on the skin surface.”Doctoral student and lab member Pin-Sung Ku is lead author of “<a href="https://dl.acm.org/doi/10.1145/3596241">SkinLink:&nbsp;On-body Construction and Prototyping of Reconfigurable Epidermal Interfaces</a>,” which was presented in early October at UbiComp/ISWC ’24, the Association for Computing Machinery’s international joint conference on pervasive and ubiquitous computing.The work earned a Distinguished Paper Award from the journal, Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, where it was originally published in June 2023.<a href="https://dl.acm.org/doi/10.1145/3659613">ECSkin: Tessellating Electrochromic Films for Reconfigurable On-skin Displays</a>, which published May 15, 2024, in the same journal and for which Ku is also lead author, was also presented at the conference. Kao is senior author for both papers.SkinLink represents a step forward from&nbsp;<a href="https://news.cornell.edu/stories/2022/11/skinkit-offers-versatile-wearable-skin-computing">SkinKit, which the lab developed</a> and presented at UbiComp in 2021. The earlier iteration featured slim and flexible printed circuit boards in temporary tattoo form, but the boards had predefined behaviors and larger surface areas, making customizability a challenge.“There were several issues we didn’t address in SkinKit, such as how to allow users to program the modules the way they want to,” Ku said. “For SkinKit, everything was pre-programmed; users had to attach things in a certain order. With SkinLink, there is more customizability of the functions they like.”With SkinKit, for example, the circuitry had to be built before applying it to the body; with SkinLink, users can put one module on the body, then another, for more customizability.&nbsp;The SkinLink toolkit consists of functional circuit modules, made of flexible printed circuit boards, and flexible, custom-designed wiring (called trace modules, or traces) that connect the sensor and actuator modules to the microcontroller board.That’s a key difference from SkinKit: Smaller circuit boards are connect via flexible wiring, allowing for greater freedom of motion without sacrificing connectivity.&nbsp; “The circuit boards are somewhat rigid,” Ku said, “but we created the traces to be elastic, stretchable and flexible, so as not to hinder body movement.”The on-body fabrication process starts with selecting and programming the circuit board and trace modules. The microcontroller board can be repeatedly programmed during this step, to fine-tune the circuit functions. The boards can be temporarily placed on the body and customized, before final placement.The researchers conducted A/B testing of SkinLink, comparing its usability with SkinKit in a 14-person study, and found that SkinLink enables a more flexible wiring process than SkinKit, along with unrestricted circuit arrangement and superior wearability. Compared to the SkinKit, the SkinLink interface has a much smaller footprint, better stretchability, easier fabricating and more seamless wear.SkinKit, Kao said, offered a “low floor” – a term coined by computer scientist Ben Shneiderman, meaning that people with little or no experience can quickly get started designing and prototyping wearable tech. SkinLink takes it a couple of steps further, she said.“Another goal is what we call ‘high ceilings and wide walls,’” she said. “High ceilings means increasing the complexity of the prototypes; wide walls refers to the vast array of things that could be designed. That’s what I think SkinLink really does.”Kao said she sees both SkinLink and ECSkin as “enabling technologies,” with a variety of potential uses. Some of the studies with SkinLink involved artists, wearable tech researchers, and psychology researchers for physiology sensing; she also envisions applications beyond humans.&nbsp;“Being able to use this as a functional technology for physiological sensing or artistic practice is one application,” she said. “Our work has focused on skin interfaces for humans, but I think there could also be potential for designing ‘skin’ interfaces for other living beings, such as animals, and sensing for agricultural purposes, even on plants. We are interested in bringing SkinLink to broader disciplines to support on-skin prototyping.”

An ECSkin on-body display, composed of modular electrochromic films, is flexible and soft, and easily conforms to complex body parts such as the wrist. Hybrid Body Lab/Provided

Two new kinds of on-skin electronics allow users to build and customize them directly on the body – with potential applications in biometric sensing, medical monitoring, interactive prosthetic makeup and more.

On-body electronics can monitor health, support creative expression

In this episode, we explore an innovative and sustainable wearable device designed by researchers at the Karlsruhe Institute of Technology to improve posture and we discuss why AI isn’t just a novelty in this product but a core feature that sets it apart from the rest!<iframe height="200px" width="100%" frameborder="no" scrolling="no" seamless="" src="https://player.simplecast.com/d57569bc-03b3-422f-b7d5-738ddd6707a9?dark=false" class="fr-draggable" data-lf-form-tracking-inspected-kn9eq4roawkarlvp="true" data-lf-yt-playback-inspected-kn9eq4roawkarlvp="true" data-lf-vimeo-playback-inspected-kn9eq4roawkarlvp="true"></iframe><hr><h3 id="isPasted">Episode Notes</h3>(0:50) - <a href="https://www.wevolver.com/article/innovative-wearable-sustainably-improving-posture" target="_blank">Innovative Wearable: Sustainably Improving Posture</a>Become a founding reader of our newsletter: <a href="http://read.thenextbyte.com/" target="_blank">http://read.thenextbyte.com/</a><hr><h2 data-attrid="title" data-local-attribute="d3bn" data-ved="2ahUKEwiBhLnmu4aAAxVmwjgGHcDWC38Q3B0oAXoECEgQEQ" id="isPasted">Transcript</h2>Gosh, my neck, my back, they hurt so bad from my poor posture. If you're just like me, you're not alone, right? Poor posture is impacting millions of people around the world. And if your back hurts from poor posture, the way that Farbod and my back hurts from carrying the podcast game, you're going to want to check out this episode. Cause we're talking about a startup called StraightUp. That's making a wearable device to help you correct your posture over time.I'm Daniel, and I'm Farbod. And this is the NextByte Podcast. Every week, we explore interesting and impactful tech and engineering content from Wevolver.com and deliver it to you in bite sized episodes that are easy to understand, regardless of your background.&nbsp;Daniel:&nbsp;What's up folks? Like we said on today's podcast episode, we're talking all about back pain and neck pain, which is a widespread issue. And this basically fledgling startup of students from Karlsruhe Institute of Technology, KIT, they made a startup called StraightUp. That's StraightUp gonna fix your back, StraightUp gonna fix your neck problems and make sure that you're StraightUp, standing StraightUp and sitting StraightUp all the time because I don't know, I think it's awesome the way that they've used technology in this sustainable user-friendly approach. I don't want to jump too fast into it. Maybe we talk a little bit more about the why first, but I think it's StraightUp interesting.Farbod: I StraightUp agree with you. And I think I'm very relevant to the why. They talk about how in the Western world, our sedentary life has led to us having a lot of back problems, a lot of neck problems. And then, a lot of people don't exercise a lot. So, I'm gonna call myself out from 8 a.m. today. It's almost 8 p.m. now. I have basically been slouched on the couch looking at a monitor. And even right now, like I had to straighten up as you started talking about the topic. My back has just kind of been hunched over. You know, I'm a youngish man right now. So, the effects have been somewhat minimal, but I feel like if I don't correct this, it's gonna catch up with me and I'm gonna feel the pain down the road. Now, Daniel over here, he's already ahead of the curve. This man is religious about his standing desk. So, he obviously has no idea what the rest of us in the Western world are talking about.Daniel:&nbsp;I know exactly what you're talking about. This is exactly why I stand up every day when I'm working at my desk, because I do have back pain. I do have neck pain from sitting on the couch or sitting in a chair and slouching. And my dad, like, had to have like really invasive back surgery and all this stuff. And he says a lot of it is probably because of his sedentary office environment, lack of movement during the day, poor posture, created a chronic issue in his back that could only be fixed by surgery. So, I'm trying to take some preventative measures along the way, but I still think there's a lot that I can do to improve my posture. And what's crazy is like a vast majority of back pain and back surgeries, chiropractor visits, et cetera. Doctors contribute a vast majority of those actually to just people's posture, right? Something that you do every single day, you know, 99 plus percent of the time, whenever you're sitting in a chair, staring at a screen or staring at your phone, that creates a lot of long-term impact on your body. And the traditional solutions for posture correcting either restrict your mobility. Right. They feel like you're like strapped into something or there's even like these new startups trying to think of one, I think it's called Upright. Which is crazy because this one's called StraightUp. So maybe they've got some beef already. But Upright is something that I've seen a lot of Instagram ads for. And it basically looks like about something about size of an AirPods case. And it hangs on a necklace on your back and it's supposed to like vibrate and let you know when you've bent over too far like you're slouching a little bit. But one of the challenges with that, and I've actually, no joke, like I'm not trying to just show StraightUp here. I've actually like looked into it and saw people on Reddit saying like, this thing's so freaking annoying. It vibrates like whenever I bend down to pick something up off the ground, I'm like, I'm not slouching. I'm just literally picking something up off the ground. So, traditional solutions either restrict your mobility, you're in a brace or they give inaccurate feedback during common most common movements. So, both of those, less effective than they could be. So, enter this team straight up, spin-off from Karlsruhe institutes at technology, I think it's three students.Farbod: Three students and a physiotherapist. Yeah.Daniel: And a physiotherapist from KIT, right? They're teaming up to try and tackle this problem with a more user-friendly approach. And this more user-friendly approach is correcting posture using haptic feedback. So, for those of you that don't know what haptic feedback is, that's like when you're typing on your phone and it vibrates a little bit, or you press a button on your phone and it vibrates a little bit, lets your body know with a physical response that the way it's interacting with something. So, in this case, the way you interact with this device is it does small vibrations, haptic feedback, to let you know when you have bad posture, to try and remind you, hey, it's time to maybe put your shoulder blades back a little bit and straighten out your neck. That gives you a little bit of a vibration as a reminder for that. It's not very restrictive like a brace. And essentially, it's this wearable that helps correct your posture. It measures your shoulder position, measures your back inclination, measures the position of your neck and tries to help encourage you to learn healthy posture. And that's one of the challenges, let's say with like a normal back brace right now to try and fix this. And Nellie even bought a posture corrector and had the same complaint, which is like, it feels like it's forcing my body to be in the right position rather than teaching it to be in the right position. So, the second you take it off, your body hasn't learned to make this its new natural home. You just go back to slouching like you were before, and it just feels kind of uncomfortable when you're wearing it. So instead of forcing your body to be in the right position, it's slowly teaching it and encouraging it with haptic feedback to maintain proper posture.Farbod: Yeah, and I mean, we can kind of start jumping into their solution, but they kind of got the best of both worlds figured out. On the material side, they chose this elastic metal alloy. So, as the name implies, it's made of metal, but it's elastic so it can conform to your body. So, it's not super rigid. Instead of having a, you know what you were talking about, I think Upright, I don't know how Upright technology works. I'm guessing that little necklace has some sort of sensor that says if you've been tilted this much, give it vibration. These folks over at StraightUp are using an AI, which I am guessing takes into account a bunch of different feedback from the harness to then say, yeah, this person's actually been crouching over their computer for an extended period of time versus, oh, they're just bending over to pick something up, or maybe they're playing a sport. And just being able to differentiate between what your body's doing in different conditions instead of a binary, oh, you're in a bad posture, or no, you're in a perfect posture.Daniel:&nbsp;Yeah, I think this is like the more nuanced next generation version of some of the things that we've seen before. Not to dog on Upright at all, right? It's a great idea. But this feels like almost like an extra twist on that, that uses these, they call them conductive super elastic metal alloys, which basically in my mind, my interpretation of this is they've got these metal wires that are weaved into the fabric of this harness that avoids all the bulkiness of having external components like an accelerometer or something like that. And what it does is it flexes with the user's movements and because it's super stretchy and because they also mentioned it's conductive, I’m imagining all they're doing is measuring the resistance of this wire and as the person changes position the resistance of the wire changes as it stretches or contracts with the body. And that allows them to gain a lot of insight on the body's position and then that allows them to you know use their AI process or whatever using the sensor data to distinguish between a normal forward bending motion versus harmful slouching. And then give the person direct haptic feedback. So, instead of locking your back into a rigid position, like a brace, what are giving you errant feedback, like some other solutions do, it tries to make sure that it knows exactly when you're holding bad posture, gives you a subtle vibration to try and train your body, say, oh, I actually have bad posture. I'm going to put my shoulders back. I'm going to straighten out my neck a little bit and it promotes you actively correcting your posture. Building better muscles to stabilize your shoulder blades in your spine and your neck as opposed to like forcing your body to do it or giving you too many notifications. So, you do it at the wrong time.Farbod: Yeah. And that in itself is already pretty promising. What I found to be even more impressive is that it looks like they're now working with the German Institute for Textile and Fiber Research. I'm guessing they're doing this to better understand how they can kind of merge this technology into a shirt or something that you would just wear. So, it's not like a separate device. And that is like, it just kind of plants the seed in my brain where I'm like, if you're able to extract that much information about posture, could you then make this a wearable that assist folks that are doing general physiotherapy and getting their movements in to heal from some sort of injury? Or for the average Joe on a day-to-day basis, could you use that to collect health data and provide, I don't know, more detailed feedback in terms of how your muscles are responding to different stimuli?Daniel:&nbsp;That's exactly where my brain went to man. Like Nellie and I are, we're in the pain cave right now for marathon training. Like we're in the thick of it. We're a couple of weeks out from the marathon race and we're dealing with some nagging injuries. And one of the things that they say potentially a lot of these injuries stem from is like poor form, poor running form, which is basically just your posture while you're running and then overuse of your muscles in that poor posture and I went exactly there too, man. I'm like, well, this is just focusing on posture of your neck and shoulders. What if there were other, I could put on a different type of harness or belt that looks at the posture of my hips and my glutes and my legs during my running, or look at the pronation of my feet, socks that look at the pronation of my feet during running and try and give me active reminders to correct my form and do it in a proper way. Also think about like lifting weights. People get hurt all the time lifting weights because they're doing it with the wrong form. They put on too much weight, they're trying to be strong, and then they do it the wrong way, and then bang, they injure the rotator cuff in their shoulder. Like there's a lot of other types of posture, not just the one that's when we're sedentary at our desk, that matters a lot to how our bodies perform and recover and interact with the world around us. I think that straight up starting with this, but they could absolutely apply this technology to other types of applications and get similar results.Farbod: Me too. It's crazy that you and I both went to the same spot given that I spend most of my time in a chair and you spent most of your time getting ready for a marathon. So, great minds think alike despite how lazy they might be.Daniel: I don't, I think I'm an equal amount of lazy. We're just, we're signed up for it. We're committed at this point, going to try and make it across the finish line. But I do want to mention, I think in terms of pros and cons. This wearable definitely could help lots and lots of people. I don't know from an adoption perspective; how many people are gonna be more willing to put this thing on. It looks a little bit more like a bra, like a harness than it does like a necklace. Feels a lot easier to try and convince someone like, oh, put on this necklace versus like put on this harness every single day. That being said, it does look like it's pretty sleek. Does look like it won't, you don't have to wear it over your clothes and it does look like it would be pretty form fitting. So, I think that that's interesting. I would be interested in how many, how many people of the millions of people suffering from posture related back pain would be willing to adopt this. But that goes to my pros, which is like, it seems like they've challenged, they overcome a lot of the challenges with AI based feedback system. Seems like they've overcome a lot of the challenges related to sustainability, right? Using haptic feedback and encouraging the person to use the right posture instead of forcing them to use the right posture. That feels like it's more sustainable. Having sensor accuracy in diverse environments, right? You want to get reminded to have correct posture when you're sitting. You maybe don't care too much if you're bending down to pick up the pencil off the ground. Like those, that's crucial in real world use. I would love to see how this compares with a competitor like Upright. And we've kind of alluded to it a couple of times, but these folks have created their own company called StraightUp. I think based on their website, I was on it earlier today, they're planning on launching in Kickstarter in 163 days. They've got a countdown, which is pretty cool. So, we'll definitely be following you, StraightUp team. And we'd love to see how this, how this tech solution continues to evolve and develop and hopefully make it to market and make a lot of impact. I say this on so many podcast episodes, but my biggest pet peeve about technology is when someone develops it and it could impact a lot of people and then it sits on a shelf and collects dust. This team from StraightUp is doing the exact opposite, right? They're taking their technology and sprinting to market as fast as they can, which is something that I really, really appreciate.Farbod:&nbsp;Yeah, and as a listener, if you're interested in something like this, make sure you check out their page, give them support as they launch. If you got feedback, it's a perfect time to just kind of get in on the ground floor and voice your opinions.Daniel: Yeah, I'm with you. And well, in addition to the article, which we, every single time, link in the show notes, we're gonna also link StraightUp's website so you can check it out and check out some of their content and watch the countdown till the Kickstarter launch, the way that I'm going to for the next 163 days and 11 hours and 53 minutes and five seconds.Farbod: If only it was before your marathon. Alas. All right, man, you wanna give us a quick wrap up?Daniel:&nbsp;Yes, I do. Do your neck and back hurt after hours of slouching at your desk, staring at your phone? If yes, like Farbod and me, you're not alone. Poor posture is pretty much our modern-day epidemic. Millions of people in the world struggle with their back and their neck pain that's caused specifically by poor posture, but a lot of the solutions out there, like braces actually just limit your mobility instead of training your body to do the right thing. So, what if your clothes or a slim wearable could silently train you to sit and stand correctly all day long? Enter the startup called StraightUp. They developed a slim wearable device that uses AI and sensors woven into the fabric to help correct your posture with the gentle vibrations, just training your body, teaching your body over time to move and to hold the right posture. I think of this as like the Garmin for exercise or the aura ring for sleep, but this is for posture I wonder if one day millions of people in the world will be using StraightUp to move the posture game forward in the future.Farbod:&nbsp;Money that was straight-up money.Daniel:&nbsp;Thanks, dawg.Farbod:&nbsp;Anytime. All right folks. Thank you so much for listening as always. We'll catch in the next one.Daniel:&nbsp;Peace.<hr id="isPasted">As always, you can find these and other interesting &amp; impactful engineering articles on Wevolver.com.To learn more about this show, please visit our<a href="https://www.wevolver.com/profile/the.next.byte" target="_blank">&nbsp;shows page</a>. By following the page, you will get automatic updates by email when a new show is published. Be sure to give us a follow and review on<a href="https://podcasts.apple.com/nl/podcast/the-next-byte/id1548255861?l=en" target="_blank" rel="nofollow">&nbsp;Apple</a> podcasts,<a href="https://open.spotify.com/show/6lPPsRtegnivsRUEsQ09R7?si=IPMiah7xT_apJtPjqvXMlA" target="_blank" rel="nofollow">&nbsp;Spotify</a>, and most of your favorite podcast platforms!--The Next Byte: We're two engineers on a mission to simplify complex science &amp; technology, making it easy to understand. In each episode of our show, we dive into world-changing tech (such as AI, robotics, 3D printing, IoT, &amp; much more), all while keeping it entertaining &amp; engaging along the way.

In this episode, we explore an innovative and sustainable wearable device designed by researchers at the Karlsruhe Institute of Technology to improve posture and we discuss why AI isn’t just a novelty in this product but a core feature that sets it apart from the rest!

Podcast: You Don't Stand Straight But This AI Wearable Will Fix It

<h2 id="isPasted">Enhancing Security Using the Latest Technology</h2>Security is a topic on everyone’s minds today, and as technology gets more advanced, it can be easier to bypass the older systems that others have built. Large-scale system hacks are highly publicized and can affect a wide range of people, but smaller scale hacks can be just as devastating. Therefore, it’s essential to use the best technology to protect what matters most, such as your home and family. Face recognition can provide a more effective home security solution than traditional keys and keypads. Physical keys can be duplicated, stolen, lost, or forgotten, and key codes can be guessed, forgotten, or shared with unauthorized users. Accurate face recognition technology has none of those disadvantages, and owners can easily manage the authorization of each person and log their entries.With some of these legacy security systems becoming easier to bypass, we need to constantly develop new solutions using the latest technology to keep the highest level of security. This is where the smart door lock, utilizing machine learning and 3D facial recognition from AMD technology partner Makarena Labs, comes into play. In this blog, we discuss how smart door technology is bringing peace of mind to the front door and more with a superior level of security.<h2>Addressing Current Security Problems in Smart Door Locks</h2>Smart door locks can provide increased protection for homes and other consumer dwelling spaces, like garages or sheds, but previous versions of smart locks can be easily tricked. Due to the incorporated technology—generally a standard CMOS sensor—previous smart locks can be fooled into opening by using 2D pictures of an authorized person’s face. This results in a false recognition and the system will allow an unauthorized person entry, which is a major security breach that needs to be addressed. &nbsp;AMD, in partnership with Makarena, have developed a capable solution, based on the AMD <a href="https://www.mouser.com/new/xilinx/xilinx-zynq-7000-socs/" target="_blank">Zynq™ 7000 SoC</a>, that provides a fully functional and robust design using 3D facial recognition. This advanced facial recognition is achieved through a camera that uses IR Time-of-Flight (TOF) or Lidar technology to bounce a pattern off the face of the person attempting to gain entry, while the sensors in the smart lock capture the reflection (Figure 1).<img src="https://s3-us-west-1.amazonaws.com/wevolver-project-images/froala%2F1725853250211-Figure_1_Makarena_Labs_Smart_Lock.png" style="width: 100%px;" class="fr-fic fr-dib">Figure 1: This smart lock design, developed by AMD and their partner Makarena, is based on the AMD Zynq 7000 SoC, incorporates IR TOF or Lidar technology to detect and create a 3D map of the face, and compares the 3D map to the authorized users in the system, only unlocking if a match is found. (Source: AMD)Using the reflection captured by the sensors, the system creates a 3D map of the face and compares it to the authorized users in the system, only unlocking if a match is found (Figure 2). The CMOS sensor provides an added layer of accuracy and simplifies user management for the homeowner by providing images of each authorized user.<img src="https://s3-us-west-1.amazonaws.com/wevolver-project-images/froala%2F1725853270469-Figure2_Detection_authorization_process.webp" style="width: 100%px;" class="fr-fic fr-dib">Figure 2: The smart door lock’s detection and authorization process ensures accuracy while simplifying user management. (Source: AMD)This advanced smart door lock system also works in complete darkness and can recognize authorized people even while they are wearing glasses, hats, or facial covers.The AMD Zynq 7000 SoC design can be easily configured and customized by OEMs with help on hand from Makarena Labs, providing a lock that can store a family’s authorized faces and accurately authorize or reject them in under a second. For applications that need to store a larger number of faces, such as a neighborhood’s security gate, the higher performance AMD&nbsp;<a href="https://www.mouser.com/new/xilinx/xilinx-zynq-ultrascale-mpsocs/" target="_blank">Zynq UltraScale+™ MPSoC</a> can support fast recognition even with hundreds of authorized faces. Both parts include robust security engines, which OEM customers can configure to load only authentically signed, encrypted firmware.If you're interested in hearing more about the smart lock solution, please reach out to sales@makarenalabs.com.AMD, and the AMD Arrow logo, UltraScale+, Zynq, and combinations thereof are trademarks of Advanced Micro Devices, Inc.The <a href="https://community.amd.com/t5/adaptive-computing/smart-door-locks-enhancing-security-with-machine-learning/ba-p/583320" rel="noreferrer nofollow" target="_blank">Smart Door Locks – Enhancing Security with Machine Learning</a> blog was first published on amd.com and was reposted here with permission.<hr>Xilinx develops highly flexible and adaptive processing platforms that enable rapid innovation across a variety of technologies, from the endpoint to the edge to the cloud. Specializing in programmable logic devices, Xilinx is the semiconductor company that invented the Field Programmable Gate Array (FPGA), the hardware programmable System on Chip (SoC), and the Adaptive Compute Acceleration Platform (ACAP).

In this blog, we discuss how smart door technology is bringing peace of mind to the front door and more with a superior level of security.

Smart Door Locks - Enhancing Security with Machine Learning

Optical Micro-Electro-Mechanical Systems (MEMS) Sensor 

This article delves deeper into the microscopic world of MEMS sensors, exploring their operating principles, diverse applications, and the cutting-edge advancements propelling them into the future.

MEMS Sensors: Miniature Marvels Revolutionizing Modern Technology

Building or modifying a robot?Specifically, are you working on something with autonomy that needs to understand an unfamiliar environment? Then you’re likely looking at adding two key sensors: A depth camera and a LiDAR unit.LiDAR (as most of you likely know), scans the surrounding environment with a continuous barrage of eye-safe laser beams. It measures what’s known as the “Time of Flight” – meaning the time it takes for the photons to be reflected off surrounding surfaces and return to the LiDAR unit. The closer that surface is, the shorter the Time of Flight. LiDARs calculate the time of each of those reflected beams and convert that into distance. Scatter enough of those beams in a short period of time (and LiDARs do), and you get an accurate digital representation of the surrounding environment – even while the robot is moving through it.This is particularly useful for autonomous missions and especially for Simultaneous Localisation and Mapping, or SLAM. That’s where a LiDAR-equipped robot can be placed in a completely unfamiliar (and even GPS-denied) environment and produce a point-cloud map of its surroundings while avoiding obstacles. Quality LiDARs are also capable of producing 3D precision scans for a wide variety of use-cases.All great, right? Except for one thing: LiDAR sensors tend to be very expensive. So expensive, they can be out of reach for an R&amp;D team, academic institution or Startup.There is, however, a solution: Robosense.The company produces LiDAR sensors (both mechanical and solid-state) that rival the established players in the market. And they do so for about one-third of the cost of the industry heavyweights.“The performance of Robosense is outstanding – absolutely on par with its main competitors in North America,” says InDro Account Executive Callum Cameron. “We have been integrating Robosense LiDAR on our products for about two years, and their performance is exceptional.”Below: A fleet of four robots, equipped with Robosense LiDAR, which recently shipped to an academic client.<img src="https://images.wevolver.com/eyJidWNrZXQiOiJ3ZXZvbHZlci1wcm9qZWN0LWltYWdlcyIsImtleSI6ImZyb2FsYS8xNzIwNjM1NDc4ODY1LUltYWdlLTEtMy1zY2FsZWQuanBlZy53ZWJwIiwiZWRpdHMiOnsicmVzaXplIjp7IndpZHRoIjo5NTAsImZpdCI6ImNvdmVyIn19fQ==" style="width: 100%px;" class="fr-fic fr-dib"> <h3 id="isPasted">RoboSense</h3>The company might not yet be a household name (unless your household has robots), but as of May 2024 the firm had sold 460,000 LiDAR units. Its sensors power a large number of autonomous cars, delivery vehicles and other robots – and it’s the first company to achieve mass production of automotive-grade LiDAR units with its own in-house developed chip.The company was founded in 2014, with some A-level engineering talent – and it’s been on a stellar trajectory ever since. One of the reasons is because Robosense produces all three core technologies behind its products: The actual chipsets, the LiDAR hardware, and the perception software. We’ll let the company itself tell you more:“In 2016, RoboSense began developing its R Platform mechanical LiDAR. One year later, in 2017, we introduced our perception software alongside the automotive-grade M Platform LiDAR sensors tailored for advanced driver assistance and autonomous driving systems. We achieved the start-of-production (SOP) of the M1 in 2021, becoming the world’s first LiDAR company to mass-produce automotive-grade LiDAR equipped with chips developed in-house,” <a href="https://www.robosense.ai/en/about" target="_blank">says its website</a>.The company now has thousands of engineers. And it didn’t take long before the world noticed what they were producing.“As of May 17, 2024, RoboSense has secured 71 vehicle model design wins and enabled 22 OEMs and Tier 1 customers to start mass production of 25 models. We serve over 2,500 customers in the robotics and other non-automotive industries and are the global LiDAR market leader in cumulative sales volume.”The company has also received prestigious recognition for its products, including two CES Innovation awards, the Automotive News PACE award, and the Audi Innovation Lab Champion prize.“This company has standout features, including Field of View, point cloud density and high frame rates,” says Cameron. “If you look at that fleet of four robots we recently built, using the competition those LiDAR units alone would have come to close to $80,000. The Robosense solution cost roughly one-quarter of that with similar capabilities.”And the factories? State of the art. Though this video focuses on its solid-state LiDAR, Robosense uses the same meticulous process for its mechanical units:<iframe width="640" height="360" src="https://www.youtube.com/embed/rxdxOxSeoEk??si=Pat7CPk_UsnOiXV_&amp;wmode=opaque&amp;enablejsapi=1&amp;origin=https://www.wevolver.com" frameborder="0" allowfullscreen="" class="fr-draggable" data-lf-form-tracking-inspected-kn9eq4roawkarlvp="true" data-lf-yt-playback-inspected-kn9eq4roawkarlvp="true" data-lf-vimeo-playback-inspected-kn9eq4roawkarlvp="true">&amp;lt;span class="fr-mk" style="display: none;"&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;&amp;amp;lt;span class="fr-mk" style="display: none;"&amp;amp;gt;&amp;amp;amp;nbsp;&amp;amp;lt;/span&amp;amp;gt;&amp;amp;amp;amp;amp;amp;lt;span class="fr-mk" style="display: none;"&amp;amp;amp;amp;amp;amp;gt;&amp;amp;amp;amp;amp;amp;amp;nbsp;&amp;amp;amp;amp;amp;amp;lt;/span&amp;amp;amp;amp;amp;amp;gt;</iframe><h3 id="isPasted">LiDAR for Every Application</h3>Robosense produces many different LiDAR sensors. But what particularly appeals to us is that the company has (excuse the pun) a laser-like focus on the robotics industry. Its Helios multi-beam LiDAR units have been designed from the ground up for robots and intelligent vehicles. There are customisable fields of view, depending on application, and a near-field blind-spot of ≤ 0.2 metres. In addition, Helios LiDAR comes in 16- and 32-beam options depending on point-cloud density and FOV requirements. Both are capable of functioning in temperatures as low as -40° or on a scorching day in the Sahara desert. There’s also protection against multi-radar interference and strong light (which can be an issue with LiDAR). You can learn more about its features <a href="https://indrorobotics.ca/rs-helios-16-lidar/" target="_blank">here</a>.Its <a href="https://indrorobotics.ca/rs-bpearl-lidar/" target="_blank">Bpearl</a> unit proves that very good things can indeed come in small packages. With a 360° horizontal and 90° vertical hemispherical FOV, it’s been designed for near-field blind spots, capable of detection at ≤10 cm. That’s why we selected it for a robot designed to inspect cycling lanes for hazards (while avoiding cyclists, of course). We actually have two Bpearls on that robot (one on each side), since detecting blind spots and avoiding other obstacles is so critical to this application.“We’ve integrated both the Bpearl and Helios LiDAR units into multiple different robots and the performance has been excellent, even under adverse conditions,” says Cameron. “Obstacle avoidance has been outstanding, and SLAM missions are a snap.”Below: This InDro robot features two 32-beam Robosense Bpearl LiDAR units. You can see one of them – that tiny bubble on the side (and there’s another one on the opposite side):<img src="https://images.wevolver.com/eyJidWNrZXQiOiJ3ZXZvbHZlci1wcm9qZWN0LWltYWdlcyIsImtleSI6ImZyb2FsYS8xNzIwNjM1NTUzOTE3LURTQ0Y3ODA5LXNjYWxlZC5qcGcud2VicCIsImVkaXRzIjp7InJlc2l6ZSI6eyJ3aWR0aCI6OTUwLCJmaXQiOiJjb3ZlciJ9fX0=" style="width: 100%px;" class="fr-fic fr-dib"> <h3 id="isPasted">The Three "D"s</h3>You’ve likely heard this before, but robots are perfect for jobs that are Dirty, Dull or Dangerous – because they remove humans from those scenarios. Robots, particularly inspection robots, are often subjected to extremes in terms of weather and other conditions.So this is a good place to mention that if a Robosense LiDAR encounters fog, rain, dust or snow it has a de-noising function to ensure it’s still capturing accurate data and that your point cloud isn’t a representation of falling snow. All of the Robosense LiDAR sensors have outstanding Ingress Protection ratings.Because adverse conditions are quite likely to occur at some point during a robotic mission, Robosense puts its products through absolutely gruelling tests. Hopefully your robot won’t encounter the scenarios seen below, but if it does – the LiDAR will keep working:<iframe width="640" height="360" src="https://www.youtube.com/embed/qPML0HHZimI??si=OL6FHKB8yReKoQ1d&amp;wmode=opaque&amp;enablejsapi=1&amp;origin=https://www.wevolver.com" frameborder="0" allowfullscreen="" class="fr-draggable" data-lf-form-tracking-inspected-kn9eq4roawkarlvp="true" data-lf-yt-playback-inspected-kn9eq4roawkarlvp="true" data-lf-vimeo-playback-inspected-kn9eq4roawkarlvp="true">&amp;lt;span class="fr-mk" style="display: none;"&amp;gt;&amp;amp;nbsp;&amp;lt;/span&amp;gt;</iframe><h3 id="isPasted">InDro's Take</h3>We take pride in putting only the highest quality sensors into our products.Prior to adopting Robosense as our “go-to” LiDAR about two years ago, we were using big-name products. But those products also came with a big price tag. When we discovered the quality and price of Robosense LiDAR units, it was an obvious choice to make the switch. We have shipped multiple Robosense-enabled robots to clients, saving them thousands of dollars – in one case, tens of thousands – while still capturing every bit of data they require. Robosense is now our go-to, even on our flagship products. (We recently did a demonstration of one of our newer Helios-equipped autonomous quadrupeds to a high-profile client; they were amazed with the results.)“Robosense is every bit the equal of the heavyweight LiDAR manufacturers, without the downside of the high cost,” says InDro Robotics CEO Philip Reece. “The field-of-view, point cloud density and quality of construction are all state-of-the-art, as are the manufacturing facilities. What’s more, Robosense continues to push the envelope with every new product it releases.”Interested in learning more, including price and options? Contact Account Executive Callum Cameron <a href="https://indrorobotics.ca/robot-accessories-quote/" target="_blank">right here</a>, and he’ll give you all the info you need.

RoboSense Sets New Bar

Affordable, Powerful LiDAR Sensors

To advance soft robotics, skin-integrated electronics and biomedical devices, researchers at Penn State have developed a 3D-printed material that is soft and stretchable — traits needed for matching the properties of tissues and organs — and that self-assembles. Their approach employs a process that eliminates many drawbacks of previous fabrication methods, such as less conductivity or device failure, the team said. &nbsp;They published their results in <a href="https://onlinelibrary.wiley.com/doi/10.1002/adma.202400082" target="_blank">Advanced Materials</a>. &nbsp;&nbsp;“People have been developing soft and stretchable conductors for almost a decade, but the conductivity is not usually very high,” said corresponding author Tao Zhou, Penn State assistant professor of engineering science and mechanics and of biomedical engineering in the College of Engineering and of materials science and engineering in the College of Earth and Mineral Sciences. “Researchers realized they could reach high conductivity with liquid metal-based conductors, but the significant limitation of that is that it requires a secondary method to activate the material before it can reach a high conductivity.”&nbsp;Liquid metal-based stretchable conductors suffer from inherent complexity and challenges posed by the post-fabrication activation process, the researchers said. The secondary activation methods include stretching, compressing, shear friction, mechanical sintering and laser activation, all of which can lead to challenges in fabrication and can cause the liquid metal to leak, resulting in device failure. &nbsp;&nbsp;“Our method does not require any secondary activation to make the material conductive,” said Zhou, who also has affiliations with the Huck Institutes of the Life Sciences and the Materials Research Institute. “The material can self-assemble to make its bottom surface be very conductive and its top surface self-insulated.”&nbsp;In the new method, the researchers combine liquid metal, a conductive polymer mixture called PEDOT:PSS and hydrophilic polyurethane that enables the liquid metal to transform into particles. When the composite soft material is printed and heated, the liquid metal particles on its bottom surface self-assemble into a conductive pathway. The particles in the top layer are exposed to an oxygen-rich environment and oxidize, forming an insulated top layer. The conductive layer is critical for conveying information to the sensor — such as muscle activity recordings and strain sensing on the body — while the insulated layer helps prevent signal leakage that could lead to less accurate data collection.&nbsp;<img src="https://s3-us-west-1.amazonaws.com/wevolver-project-images/froala%2F1719495196118-240205-psnbody1-tao.jpg" style="width: 100%px;" class="fr-fic fr-dib">The new material, shown here, can self-assemble to make its bottom surface conductive and its top surface self-insulated. Credit: Marzia Momin. All Rights Reserved.“Our innovation here is a materials one,” Zhou said. “Normally, when liquid metal mixes with polymers, they are not conductive and require secondary activation to achieve conductivity. But these three components allow for the self-assembly that produces the high conductivity of soft and stretchable material without a secondary activation method.” &nbsp;The material can also be 3D-printed, Zhou said, making it easier to fabricate wearable devices. The researchers are continuing to explore potential applications, with a focus on assistive technology for people with disabilities.&nbsp;The papers other authors are Salahuddin Ahmed, Marzia Momin and Jiashu Ren, all doctoral students in the Penn State engineering science and mechanics department, and Hyunjin Lee, a doctoral student in the biomedical engineering department at Penn State. This work was supported by the National Taipei University of Technology-Penn State Collaborative Seed Grant Program and by the Department of Engineering Science and Mechanics, the Materials Research Institute and the Huck Institutes of the Life Sciences at Penn State.&nbsp;<img src="https://s3-us-west-1.amazonaws.com/wevolver-project-images/froala%2F1719495222063-240205-psnbody2-tao.jpg" style="width: 100%px;" class="fr-fic fr-dib">The researchers 3D print the novel material.&nbsp;Credit: Marzia Momin. All Rights Reserved.

Penn State researchers developed a new soft and stretchable material that can be 3D-printed. The material can be used to fabricate wearable devices, such a sensor that can be worn on a finger, as shown here. Credit: Marzia Momin. All Rights Reserved.

To advance soft robotics, skin-integrated electronics and biomedical devices, researchers at Penn State have developed a 3D-printed material that is soft and stretchable — traits needed for matching the properties of tissues and organs — and that self-assembles.

Self-assembling, highly conductive sensors could improve wearable devices

In this episode, we discuss how MIT researchers are making great strides in developing better robotic hands by focusing on an often overlooked component: the palm.

Podcast: Talk to The Hand: Meet The Robots With a Human Touch

This article was discussed in our <a href="https://www.wevolver.com/profile/the.next.byte" rel="noopener noreferrer" target="_blank">Next Byte podcast</a>.&nbsp;<iframe height="200px" width="100%" frameborder="no" scrolling="no" seamless="" src="https://player.simplecast.com/deaf3bb7-ff61-48d1-ad11-30ae0112d53e?dark=false" class="fr-draggable" data-gtm-yt-inspected-23="true" data-lf-form-tracking-inspected-kn9eq4roawkarlvp="true" data-lf-yt-playback-inspected-kn9eq4roawkarlvp="true" data-lf-vimeo-playback-inspected-kn9eq4roawkarlvp="true"></iframe> The full article will continue below.<hr>“I'll have you eating out of the palm of my hand” is an unlikely utterance you'll hear from a robot. Why? Most of them don't have palms.If you have kept up with the protean field, gripping and grasping more like humans has been an ongoing Herculean effort. Now, a new robotic hand design developed in MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL) has rethought the oft-overlooked palm. The new design uses advanced sensors for a highly sensitive touch, helping the “extremity” handle objects with more detailed and delicate precision.<a href="https://arxiv.org/pdf/2404.08227" target="_blank">GelPalm</a> has a gel-based, flexible sensor embedded in the palm, drawing inspiration from the soft, deformable nature of human hands. The sensor uses a special color illumination tech that uses red, green, and blue LEDs to light an object, and a camera to capture reflections. This mixture generates detailed 3D surface models for precise robotic interactions.<iframe width="640" height="360" src="https://www.youtube.com/embed/5S9dZQv5qAc?&amp;wmode=opaque&amp;rel=0&amp;enablejsapi=1&amp;origin=https://www.wevolver.com" frameborder="0" allowfullscreen="" class="fr-draggable" data-lf-form-tracking-inspected-kn9eq4roawkarlvp="true" data-lf-yt-playback-inspected-kn9eq4roawkarlvp="true" data-lf-vimeo-playback-inspected-kn9eq4roawkarlvp="true" data-gtm-yt-inspected-23="true" id="894047451" title="Robotic palm mimics human touch">&nbsp;</iframe>GelPalm. Video: MIT CSAILAnd what would the palm be without its facilitative fingers? The team also developed some robotic phalanges, called ROMEO (“RObotic Modular Endoskeleton Optical”), with flexible materials and similar sensing technology as the palm. The fingers have something called “passive compliance,” which is when a robot can adjust to forces naturally, without needing motors or extra control. This in turn helps with the larger objective: increasing the surface area in contact with objects so they can be fully enveloped. Manufactured as single, monolithic structures via 3D printing, the finger designs are a cost-effective production.Beyond improved dexterity, GelPalm offers safer interaction with objects, something that’s especially handy for potential applications like human-robot collaboration, prosthetics, or robotic hands with human-like sensing for biomedical uses.Many previous robotic designs have typically focused on enhancing finger dexterity. Liu's approach shifts the focus to create a more human-like, versatile end effector that interacts more naturally with objects and performs a broader range of tasks.&nbsp;“We draw inspiration from human hands, which have rigid bones surrounded by soft, compliant tissue,” says recent MIT graduate Sandra Q. Liu SM ’20, PhD ’24, the lead designer of GelPalm, who developed the system as a CSAIL affiliate and PhD student in mechanical engineering. “By combining rigid structures with deformable, compliant materials, we can better achieve that same adaptive talent as our skillful hands. A major advantage is that we don't need extra motors or mechanisms to actuate the palm's deformation — the inherent compliance allows it to automatically conform around objects, just like our human palms do so dexterously.”The researchers put the palm design to the test. Liu compared the tactile sensing performance of two different illumination systems — blue LEDs versus white LEDs — integrated into the ROMEO fingers. “Both yielded similar high-quality 3D tactile reconstructions when pressing objects into the gel surfaces,” says Liu.But the critical experiment, she says, was to examine how well the different palm configurations could envelop and stably grasp objects. The team got hands-on, literally slathering plastic shapes in paint and pressing them against four palm types: rigid, structurally compliant, gel compliant, and their dual compliant design. “Visually, and by analyzing the painted surface area contacts, it was clear having both structural and material compliance in the palm provided significantly more grip than the others,” says Liu. “It's an elegant way to maximize the palm's role in achieving stable grasps.”One notable limitation is the challenge of integrating sufficient sensory technology within the palm without making it bulky or overly complex. The use of camera-based tactile sensors introduces issues with size and flexibility, the team says, as the current tech doesn't easily allow for extensive coverage without trade-offs in design and functionality. Addressing this could mean developing more flexible materials for mirrors, and enhancing sensor integration to maintain functionality, without compromising practical usability.“The palm is almost completely overlooked in the development of most robotic hands,” says Columbia University Associate Professor Matei Ciocarlie, who wasn’t involved in the paper. “This work is remarkable because it introduces a purposefully designed, useful palm that combines two key features, articulation and sensing, whereas most robot palms lack either. The human palm is both subtly articulated and highly sensitive, and this work is a relevant innovation in this direction.”“I hope we're moving toward more advanced robotic hands that blend soft and rigid elements with tactile sensitivity, ideally within the next five to 10 years. It's a complex field without a clear consensus on the best hand design, which makes this work especially thrilling,” says Liu. “In developing GelPalm and the ROMEO fingers, I focused on modularity and transferability to encourage a wide range of designs. Making this technology low-cost and easy to manufacture allows more people to innovate and explore. As just one lab and one person in this vast field, my dream is that sharing this knowledge could spark advancements and inspire others.”Ted Adelson, the John and Dorothy Wilson Professor of Vision Science in the Department of Brain and Cognitive Sciences and CSAIL member, is the senior author on a <a href="https://arxiv.org/pdf/2404.08227" target="_blank">paper describing the work</a>. The research was supported, in part, by the Toyota Research Institute, Amazon Science Hub, and the SINTEF BIFROST project. Liu presented the research at the International Conference on Robotics and Automation (ICRA) earlier this month.

MIT CSAIL student Sandra Q. Liu displays her innovative GelPalm robotic design in her lab workspace. Photo: Michael Grimmett/MIT CSAIL

MIT CSAIL researchers enhance robotic precision with sophisticated tactile sensors in the palm and agile fingers, setting the stage for improvements in human-robot interaction and prosthetic technology.

Robotic palm mimics human touch

In this episode, we discuss a novel sticker capable of monitoring the health of organs in real time allowing for more successful organ transplants and catching signs of diseases earlier than ever!

Podcast: Sticker to Monitor Your Internal Organs

In this episode, we discuss the shortcomings of previous attempts at making flexible wearable sensors and how researchers at CalTech have addressed them to create high performance stress sensor stickers.

Stress Sensing Stickers

This article was discussed in our <a href="https://www.wevolver.com/profile/the.next.byte" rel="noopener noreferrer" target="_blank">Next Byte podcast</a>.&nbsp;<iframe height="200px" width="100%" frameborder="no" scrolling="no" seamless="" src="https://player.simplecast.com/1e9bb08c-384a-4d12-983e-8af2e63c741b?dark=false" class="fr-draggable" data-lf-form-tracking-inspected-kn9eq4roawkarlvp="true" data-lf-yt-playback-inspected-kn9eq4roawkarlvp="true" data-lf-vimeo-playback-inspected-kn9eq4roawkarlvp="true"></iframe> The full article will continue below.<hr>MIT engineers have developed a small ultrasound sticker that can monitor the stiffness of organs deep inside the body. The sticker, about the size of a postage stamp, can be worn on the skin and is designed to pick up on signs of disease, such as liver and kidney failure and the progression of solid tumors.<img src="https://images.wevolver.com/eyJidWNrZXQiOiJ3ZXZvbHZlci1wcm9qZWN0LWltYWdlcyIsImtleSI6ImZyb2FsYS8xNzA3NzI0MzU5MjkzLU1JVC1TZWVpbmdTdGlmZm5lc3MtMDEtcHJlc3NfMC5qcGciLCJlZGl0cyI6eyJyZXNpemUiOnsid2lkdGgiOjk1MCwiZml0IjoiY292ZXIifX19" style="width: 766px;" class="fr-fic fr-dib">A small ultrasound sticker, worn on the skin, can monitor the stiffness of organs deep inside the body. The MIT-developed sensor could detect signs of disease such as liver and kidney failure, and the progression of solid tumors. Image: Courtesy of the researchersIn an <a href="https://science.org/doi/10.1126/sciadv.adk8426" target="_blank">open-access study appearing today</a> in Science Advances, the team reports that the sensor can send sound waves through the skin and into the body, where the waves reflect off internal organs and back out to the sticker. The pattern of the reflected waves can be read as a signature of organ rigidity, which the sticker can measure and track.“When some organs undergo disease, they can stiffen over time,” says the senior author of the paper, Xuanhe Zhao, professor of mechanical engineering at MIT. “With this wearable sticker, we can continuously monitor changes in rigidity over long periods of time, which is crucially important for early diagnosis of internal organ failure.”The team has demonstrated that the sticker can continuously monitor the stiffness of organs over 48 hours and detect subtle changes that could signal the progression of disease. In preliminary experiments, the researchers found that the sticky sensor can detect early signs of acute liver failure in rats.The engineers are working to adapt the design for use in humans. They envision that the sticker could be used in intensive care units (ICUs), where the low-profile sensors could continuously monitor patients who are recovering from organ transplants.“We imagine that, just after a liver or kidney transplant, we could adhere this sticker to a patient and observe how the rigidity of the organ changes over days,” lead author Hsiao-Chuan Liu says. “If there is any early diagnosis of acute liver failure, doctors can immediately take action instead of waiting until the condition becomes severe.” Liu was a visiting scientist at MIT at the time of the study and is currently an assistant professor at the University of Southern California.The study’s MIT co-authors include Xiaoyu Chen and Chonghe Wang, along with collaborators at USC.Sensing wobblesLike our muscles, the tissues and organs in our body stiffen as we age. With certain diseases, stiffening organs can become more pronounced, signaling a potentially precipitous health decline. Clinicians currently have ways to measure the stiffness of organs such as the kidneys and liver using ultrasound elastography — a technique similar to ultrasound imaging, in which a technician manipulates a handheld probe or wand over the skin. The probe sends sound waves through the body, which cause internal organs to vibrate slightly and send waves out in return. The probe senses an organ’s induced vibrations, and the pattern of the vibrations can be translated into how wobbly or stiff the organ must be.Ultrasound elastography is typically used in the ICU to monitor patients who have recently undergone an organ transplant. Technicians periodically check in on a patient shortly after surgery to quickly probe the new organ and look for signs of stiffening and potential acute failure or rejection.“After organ transplantation, the first 72 hours is most crucial in the ICU,” says another senior author, Qifa Zhou, a professor at USC. “With traditional ultrasound, you need to hold a probe to the body. But you can’t do this continuously over the long term. Doctors might miss a crucial moment and realize too late that the organ is failing.”The team realized that they might be able to provide a more continuous, wearable alternative. Their solution expands on an <a href="https://news.mit.edu/2022/ultrasound-stickers-0728" target="_blank">ultrasound sticker</a> they previously developed to image deep tissues and organs.“Our imaging sticker picked up on longitudinal waves, whereas this time we wanted to pick up shear waves, which will tell you the rigidity of the organ,” Zhao explains.Existing ultrasound elastrography probes measure shear waves, or an organ’s vibration in response to sonic impulses. The faster a shear wave travels in the organ, the stiffer the organ is interpreted to be. (Think of the bounce-back of a water balloon compared to a soccer ball.)The team looked to miniaturize ultrasound elastography to fit on a stamp-sized sticker. They also aimed to retain the same sensitivity of commercial hand-held probes, which typically incorporate about 128 piezoelectric transducers, each of which transforms an incoming electric field into outgoing sound waves.“We used advanced fabrication techniques to cut small transducers from high-quality piezoelectric materials that allowed us to design miniaturized ultrasound stickers,” Zhou says.The researchers precisely fabricated 128 miniature transducers that they incorporated onto a 25-millimeter-square chip. They lined the chip’s underside with an adhesive made from hydrogel — a sticky and stretchy material that is a mixture of water and polymer, which allows sound waves to travel into and out of the device almost without loss.In preliminary experiments, the team tested the stiffness-sensing sticker in rats. They found that the stickers were able to take continuous measurements of liver stiffness over 48 hours. From the sticker’s collected data, the researchers observed clear and early signs of acute liver failure, which they later confirmed with tissue samples.“Once liver goes into failure, the organ will increase in rigidity by multiple times,” Liu notes.“You can go from a healthy liver as wobbly as a soft-boiled egg, to a diseased liver that is more like a hard-boiled egg,” Zhao adds. “And this sticker can pick up on those differences deep inside the body and provide an alert when organ failure occurs.”The team is working with clinicians to adapt the sticker for use in patients recovering from organ transplants in the ICU. In that scenario, they don’t anticipate much change to the sticker’s current design, as it can be stuck to a patient’s skin, and any sound waves that it sends and receives can be delivered and collected by electronics that connect to the sticker, similar to electrodes and EKG machines in a doctor’s office.“The real beauty of this system is that since it is now wearable, it would allow low-weight, conformable, and sustained monitoring over time,” says Shrike Zhang,&nbsp;an associate professor of medicine at Harvard Medical School and associate bioengineer at Brigham and Women’s Hospital, who was not involved with the study. “This would likely not only allow patients to suffer less while achieving prolonged, almost real-time monitoring of their disease progression, but also free trained hospital personnel to other important tasks.”The researchers are also hoping to work the sticker into a more portable, self-enclosed version, where all its accompanying electronics and processing is miniaturized to fit into a slightly larger patch. Then, they envision that the sticker could be worn by patients at home, to continuously monitor conditions over longer periods, such as the progression of solid tumors, which are known to harden with severity.“We believe this is a life-saving technology platform,” Zhao says. “In the future, we think that people can adhere a few stickers to their body to measure many vital signals, and image and track the health of major organs in the body.”

“We used advanced fabrication techniques to cut small transducers from high-quality piezoelectric materials that allowed us to design miniaturized ultrasound stickers,” Xuanhe Zhao, professor of mechanical engineering at MIT, says. Image: Courtesy of the researchers

The sticky, wearable sensor could help identify early signs of acute liver failure.

This ultrasound sticker senses changing stiffness of deep internal organs

The adoption of healthcare monitoring devices that are both flexible and conform to the wearer have gained traction1. Spurred on by the need for remote care during the COVID-19 pandemic and technological advances in sensor accuracy, wearable health monitoring devices have become more ubiquitous in many areas of healthcare. In particular, there has been a rise in the development of wearable sensing and monitoring devices for telemedicine operations. Telemedicine has grown significantly in the last few years—and even more so during the COVID-19 pandemic when doctor-patient contact was limited—to remotely monitor patients in their own homes so hospitals could free up much-needed beds. While wearable technologies can be used in clinical environments to provide an analysis, much of their potential is in remote health monitoring.These wearable sensing devices typically make use of flexible materials, such as polymers, thin films, 2D materials and other nanomaterials. Health monitoring devices often consist of a flexible material that conforms to the wearer and is integrated with electronic components, including sensors, a power source—be it a battery, solar cell, or some other type of energy harvester like a nanogenerator—communication technologies if it transmits data to a central processing system, and any relevant circuitry.Building electronic components that are small and flexible enough to be used in wearable technologies is not that straightforward, and is why different nanomaterials—especially 2D materials—are often used to create the components because they fit the bill and can be easily integrated. But another approach is gathering interest: printing sensors—the most crucial aspects of a monitoring system—directly onto the wearable device.These printed sensors are sometimes made of 2D materials and other nanomaterials, but other materials can also be used as well. The ability to print sensors onto wearable health monitoring devices could pave a way to a much simpler and easier route to commercializing more wearable monitoring devices—especially if conventional, inexpensive, or easy-to-use printing technologies are used to print the sensor.<h2>Why Printed Sensors?</h2>While a range of advanced deposition and nanodeposition methods exist that can fabricate thin-film sensors on the substrate for wearable devices—often a soft polymer due to their flexibility and conformability—a number of biomedical sensors can be printed using screen printing techniques. Other techniques, such as inkjet and transfer printing, can be used as well, but screen printing is seen as the best option for printing sensors.Screen printing equipment is widely available, has a relatively low cost, and is easier to use than more advanced deposition methods, so it offers a much more scalable and commercially feasible route for using printed sensors in healthcare monitoring devices. Screen printing can also be used with many materials—from polymer solutions to conductive nanomaterial inks—so it is a versatile platform for printing a number of sensors.So, why print sensors instead of creating them through other manufacturing routes? Screen printing is a simple, fast, and efficient printing technique that can produce a large number of identical patterns in a single print. For large-scale operations and commercialization potential, screen printing can easily be adapted for mass production at a lower cost than other methods.From a performance perspective, screen printing provides high-resolution patterning and can print over large areas. The ability of screen printing to deposit material on demand in a given location also helps to reduce waste—especially on large scales—compared to traditional manufacturing methods because it is all done in a single step.There are, therefore, a number of manufacturing benefits with using printing methods. Beyond that, a greater design capability exists for health wearables because printing methods enable the production of sensors that are not only very thin but also provide the ability to print on the surface of the device. This approach is much simpler than trying to integrate devices into the material matrix of the wearable. You can also create a more customized sensor because you can print on demand, and the printing process can be changed to make a different sensor much easier than a typical manufacturing line.In terms of the materials compatible with screen printing, the scope is vast. Depending on the type of sensor being created, a whole host of materials can be used. On the one hand, a range of metals can be made into printable conductive inks to build the sensor. Common metals for wearable health sensors include gold, copper, platinum, nickel, aluminum, and silver. Beyond metals, a range of nanomaterial composites (graphene, carbon nanotubes composites), functional nanomaterial inks, and silver composites have all been used as the active sensing surface in printed health wearable sensors.The sensors also need a platform to be printed on. This often takes the form of a conductive polymer so that the sensor can better interact with the skin and the other components to provide higher sensitivity and reliability. PEDOT:PSS is the polymer platform that is most widely used for printed sensors, but other polymer materials include polyacetylene, polypyrrol, polyphenylene, poly (p-phenylene vinylene), and polythiophene polyaniline.<h2>The Printed Sensors of Interest in Healthcare Monitoring Applications</h2>Just as many materials can be used to create printed health sensors, many different types of printable sensors are used in health monitoring devices. Take, for example, strain-based sensors. Strain-based sensors measure a form of movement, and these wearable sensors are used in human-physiological signal monitoring and human-joint motion monitoring approaches.Another healthcare specialty measures different biomolecules and human signals. Non-strain-based sensors detect the biomolecule of interest directly or by directly measuring a physiological parameter that the patient exhibits. From a molecule-sensing perspective, a number of biomolecules in the blood can be detected, with glucose levels being a common one as well as the presence of sweat on a person’s skin. From a signal detection perspective, printed sensors can now detect respiration and heartbeat levels in a patient and provide remote electrocardiogram (ECG) monitoring.Another class of printed sensors for wearables is sensor arrays. In sensor arrays, multiple sensors work together to detect more complex issues or issues that require analysis from several stimuli angles. Sensor arrays are helpful in monitoring gait during walking, monitoring the sitting posture of wheelchair users, and monitoring the skin.Finally, there’s been advances in the development of printed temperature sensors for wearable health devices. Thermal sensing is a key area in disease detection because the body suffers thermal stresses when there is a disease present, and the rise in both skin and deep body temperature can be a primary indicator of a serious disease. Using printed temperature sensors, health wearables can detect a range of chronic diseases, such as cardiovascular, diabetic, and pulmonological diseases, as well as cancer.<h2>Conclusion</h2>Health monitoring wearables are gaining acceptance as an effective way to remotely measure many health factors of a patient. The most important aspect of these wearables is the sensing system that provides the analysis on the patient. For patients to be willing to wear the health monitoring device over an extended amount of time, the sensors and other components need to flex with the wearable component. While integrating flexible sensors is possible—for example, by using thin nanomaterials—printing sensors on the device’s surface is much easier, requires less material, and is much more scalable.A variety of printed health wearables are already in existence (commercially and academically. The printing methods discussed offer a route to achieve widespread distribution of health wearables. While many options are available, screen printing is the leading printing technology because it is highly versatile and can be used with many materials to create sensors that monitor different aspects of a person’s health—from heart rate to detecting a chance of a disease, to the different biomolecules in their blood, and many more in between.

The COVID-19 pandemic and advancements in sensor technology have led to the widespread adoption of wearable health monitoring devices, particularly for telemedicine, to facilitate remote patient monitoring.

Printable Sensors: A Key Technology for Health Wearables?

This article was discussed in our <a href="https://www.wevolver.com/profile/the.next.byte" rel="noopener noreferrer" target="_blank">Next Byte podcast</a>.&nbsp;<iframe height="200px" width="100%" frameborder="no" scrolling="no" seamless="" src="https://player.simplecast.com/437b67d4-99c8-455a-9ae6-e487b81825a1?dark=false" class="fr-draggable" data-lf-form-tracking-inspected-kn9eq4roawkarlvp="true" data-lf-yt-playback-inspected-kn9eq4roawkarlvp="true" data-lf-vimeo-playback-inspected-kn9eq4roawkarlvp="true"></iframe> The full article will continue below.<hr>In the latest of a series of innovative designs for wearable sensors that use sweat to identify and measure physiological conditions, Caltech's Wei Gao, assistant professor of medical engineering, has devised an "electronic skin" that continuously monitors nine different markers that characterize a stress response. Those wearing this electronic skin—a small, thin adhesive worn on the wrist, called CARES (consolidated artificial-intelligence-reinforced electronic skin)—are free to engage in all their normal daily activities with minimal interference during testing, which allows for the measurement of both baseline and acute levels of stress.<img src="https://images.wevolver.com/eyJidWNrZXQiOiJ3ZXZvbHZlci1wcm9qZWN0LWltYWdlcyIsImtleSI6ImZyb2FsYS8xNzA2NTEyNDkyMDc2LUdhb19XZWktU3RyZXNzLVN3ZWF0LVNlbnNvci01LVdFQi53aWR0aC00NTAgKDEpLmpwZyIsImVkaXRzIjp7InJlc2l6ZSI6eyJ3aWR0aCI6OTUwLCJmaXQiOiJjb3ZlciJ9fX0=" style="width: 300px;" class="fr-fic fr-dib">Stress is a slippery concept. We talk about "feeling stressed" or a situation "being stressful," and we may attach stress to physical symptoms: "I have a stress headache" or "I'm grinding my teeth at night. It must be stress." The term stress can apply to all sorts of feelings, symptoms, behaviors, and experiences.Hans Selye, a physician and chemist born in Vienna in 1907, was the first to define stress as a medical condition. Struck by the similar complaints—such as tiredness, low appetite, and lack of motivation—that he heard from patients suffering from very different illnesses, Selye speculated that all of the patients were responding to what they had in common: being sick. He defined stress as a "nonspecific response of the body to any demand."Stress may be experienced positively as excitement or energy, or negatively as shock or anxiety. But however stress may be experienced emotionally, it is now widely agreed that depending on its severity and duration, both acute and chronic stress can damage our physical and mental health, and reduce our ability to function as we would like.Because stress is, as Selye described it, "nonspecific," there is no single biomarker available to tell us definitively whether or how much a person is stressed. However, stress generates a constellation of bodily reactions that, taken together, can provide a measure of stress independent of self-reports. Gao is monitoring this constellation with CARES.<img src="https://images.wevolver.com/eyJidWNrZXQiOiJ3ZXZvbHZlci1wcm9qZWN0LWltYWdlcyIsImtleSI6ImZyb2FsYS8xNzA2NTEyNDI2MzM3LUdhb19XZWktU3RyZXNzLVN3ZWF0LVNlbnNvci00LVdFQl8zSW1tM1pKLndlYnAiLCJlZGl0cyI6eyJyZXNpemUiOnsid2lkdGgiOjk1MCwiZml0IjoiY292ZXIifX19" style="width: 766px;" class="fr-fic fr-dib">A sweat sensor worn on the wrist, lifted to show the thinness of the device. Credit: Wei Gao and Changhao Xu"When a person is under stress, hormones like epinephrine, norepinephrine, and cortisol are released into the bloodstream," explains Gao, who is also an investigator with the Heritage Medical Research Institute and a Ronald and JoAnne Willens Scholar. "Sweat becomes rich with metabolites like glucose, lactate, and uric acid, and electrolytes like sodium, potassium, and ammonium. These are substances we have measured before using <a href="https://www.caltech.edu/about/news/new-wearable-sensor-detects-even-more-compounds-in-human-sweat" target="_blank">microfluidic sampling on a wearable sweat sensor</a>. What is new in CARES is that sweat sensors are integrated with sensors that record pulse waveforms, skin temperature, and galvanic skin response: physiological signals that also indicate stress in predictable ways."New materials further boost the performance of CARES. Though previously used materials for sweat sensors could be produced efficiently via inkjet printing and were capable of accurate measurement of even very scarce compounds, the materials gradually broke down in the presence of bodily fluids. The introduction of a nickel-based compound helps to stabilize the enzymatic-based sensors, such as those that detect lactate or glucose, as does a new polymer added to the ion-based sensors, which detect biomarkers like sodium or potassium. "Adding these new materials greatly enhances the sensor stability during long-term operation," Gao reports. Like previous sweat sensors, CARES can be battery powered and can wirelessly communicate with a phone or computer via Bluetooth.Another important innovation with CARES is the addition of machine learning. Because stress comes in many different forms and stimulates a complex response affecting many different bodily systems, interpreting a wealth of data accurately is key to the usefulness of CARES and other sensors. Experiments inducing stress in subjects wearing the CARES device demonstrated that the sensor accurately measures the interrelatedness of physiological (such as pulse) and chemical (such as glucose) biomarkers. Subjects also answered questionnaires to self-report their feelings of anxiety and psychological stress before and after exposure to stressful situations like vigorous exercise or intense video gameplay. Data showed clear correlations between self-reports of stress and its physicochemical correlates as measured by CARES."High levels of stress and anxiety caused by demanding work environments, such as those experienced by soldiers or astronauts, can significantly affect performance," Gao notes. "Early detection of the severity of stress allows for timely intervention. Our wearable sensor, combined with machine learning, has the potential to provide real-time stress-level insights."The paper describing the CARES device, titled "A physicochemical sensing electronic skin for stress response monitoring," appears in the January 19 issue of Nature Electronics. Co-authors are Changhao Xu (MS '20), Yu Song, Juliane R. Sempionatto, Samuel R. Solomon (MS '23), You Yu, Roland Yingjie Tay, Jiahong Li, Wenzheng Heng (MS '23), Jihong Min (MS '19), and Alison Lao of Caltech; Hnin Y. Y. Nyein of Hong Kong University of Science and Technology; and Tzung K. Hsiai and Jennifer A. Sumner of UCLA.

In the latest of a series of innovative designs for wearable sensors that use sweat to identify and measure physiological conditions, Caltech's Wei Gao has devised an "electronic skin" that continuously monitors nine different markers that characterize a stress response.

Measuring Stress

<h2 dir="ltr" id="isPasted">FREE REPORT:&nbsp;Reducing Human Driver Error and Setting Realistic Expectations with Advanced Driver Assistance Systems</h2>Thousands die or are injured each year in automobile crashes. Bringing automated driving systems technologies into the advanced driver assist systems (ADAS) and connected vehicle space will help humans drive more safely and better prepare us for automated vehicles (AVs).Learn more about ADAS and ADS implementation with the goal of reaching zero deaths and serious injuries by downloading this FREE report from SAE International (valued at $50).&nbsp;<img src="https://images.wevolver.com/eyJidWNrZXQiOiJ3ZXZvbHZlci1wcm9qZWN0LWltYWdlcyIsImtleSI6ImZyb2FsYS8xNzAyMzIxNDMwMTE3LXNhZSBmcmVlIHJlcG9ydC5qcGciLCJlZGl0cyI6eyJyZXNpemUiOnsid2lkdGgiOjk1MCwiZml0IjoiY292ZXIifX19" style="width: 300px;" class="fr-fic fr-dib"><iframe src="https://c8056756.sibforms.com/serve/MUIFAIm7QnvQQ9ZyzkX--H5jNS-TSb9GWr5SQBXi_SUjRPpt67CBveq_yevZYMSeiJ-O1dwYw05f2kl-Q7sfNDRem1Y-03GXYZV4qkTbJeR_K_VpJzgMk_8Ry8fjyfgJ7fAMrCmcRHc1KXsSTuhIU5p5pBa3F1-TGDgOdQgcF-pU8cSTrl8JF2j2b9gl6-5e66Ro-rltcIrGxsRG" frameborder="0" scrolling="auto" allowfullscreen="" style="display: block; margin-left: auto; margin-right: auto; max-width: 100%; width: 540px; height: 740px;" class="fr-draggable" data-lf-form-tracking-inspected-kn9eq4roawkarlvp="true" data-lf-yt-playback-inspected-kn9eq4roawkarlvp="true" data-lf-vimeo-playback-inspected-kn9eq4roawkarlvp="true">&nbsp;&nbsp;</iframe><hr><h2>Provizio promises its 5D Perception stack can safely compete with expensive lidar sensors at a fraction of the cost.</h2>"Safety first” is more than a catchphrase. For sensing company Provizio, it’s the only way the transportation industry should introduce autonomous vehicles. In Provizio’s view, using AV building blocks – technology such as automatic emergency braking and lane-keep assist – can be valuable in ADAS systems, but they should not be used to drive vehicles until the perception problem has been solved.<img src="https://images.wevolver.com/eyJidWNrZXQiOiJ3ZXZvbHZlci1wcm9qZWN0LWltYWdlcyIsImtleSI6ImZyb2FsYS8xNzAyMjgyNDM3MTM3LXByb3ZpemlvLXJhZGFyLXN1cGVyLXJlc29sdXRpb24tZ2FsbGVyeS5qcGciLCJlZGl0cyI6eyJyZXNpemUiOnsid2lkdGgiOjk1MCwiZml0IjoiY292ZXIifX19" style="width: 300px;" class="fr-fic fr-dib">An example image using data taken from Provizio’s “super-resolution” radar sensor.<blockquote>“It’s not that we’re skeptical about autonomous driving, it’s just that we strongly believe that the industry has taken this wrong path,” Dane Mitrev, machine learning engineer at Provizio, told SAE at September 2023’s AutoSens Brussels conference.</blockquote>“The industry has looked at things the other way around. They tried to solve autonomy first, without looking at accident prevention and simpler ADAS systems. We are building a perception technology which will first eliminate road fatalities, then deliver next-generation ADAS – and then solve autonomy. We believe that’s the right order.”Obviously, the industry is in favor of AVs. A group of 11 mobility and automotive companies released a 157-page paper in 2019 called “Safety First for Automated Driving.” Those companies — Aptiv, Audi, Baidu, BMW, Continental, Daimler, FCA US LLC, HERE, Infineon, Intel and Volkswagen — used the paper to propose a non-binding organized framework focused on “the development, testing and validation of safe automated passenger vehicles,” but did not attempt to establish any actual limits on what companies could do as they developed AVs. In the years since, AV technology has continued to advance, but not with the mission to solve sensing and important safety issues before teaching the vehicles how to maneuver.Provizio’s solution is its 5D Perception driving platform, named for the way it uses five different inputs to sense the environment. There’s the 3D radar information of an object in space, plus velocity information, plus the fifth dimension: perception, which means AI embedded in the hardware. Mitrev said the final vision of this technology will be powered by radar and cameras, not light detection and ranging (lidar). Radar’s benefits are well known: the sensors are smaller (and thus simpler to integrate) and less expensive than lidar and can see in all weather conditions. For now, though, Provizio is working with lidar, especially around its hometown.<h3>Irish sensors are smiling</h3>Provizio is headquartered in Limerick, Ireland, and has offices in North Ireland and Pittsburgh, Pennsylvania. In late 2022, Provizio signed a deal with micromobility company Voi to test 5D perception on Voi’s scooters. Alongside potential OEM and Tier 1 partnerships he couldn’t discuss, Mitrev said Provizio also has a partnership with Jaguar Land Rover, supporting tests at a future mobility campus in Ireland.These real-world tests involve collecting data from lidar to train the new radar AI. Provizio synchronizes the lidar and radar sensors, then extracts value from the lidar data at training time, embedding it into the neural net and teaching the neural networks based on these data streams. Imagine lidar as an old professor teaching a young radar sensor a few things, but sooner or later, the student – Provizio’s radar – won’t need the teacher anymore.<blockquote>“We lean fully towards a lidar-less path,” he said. “Lidars should not be involved, even in [SAE Level 5] vehicles. They’re not necessary.”</blockquote>The same is not true for cameras. To understand semantic information such as traffic signs, Provizio’s system uses cameras to augment the radar data.“Provizio is a perception company, first of all,” Mitrev said. “We are not a radar company. We’re not a car manufacturer. We’re a perception company, we have this radar and we have a perception platform that fuses radars and cameras and provides this low-cost solution.”Provizio was founded by Barry Lunn following the acquisition of his company Arralis, which focused on millimeter-wave communication technology for satellite communications and aerospace markets. Provizio’s radar technology grew out of radar work Lunn was familiar with in the aerospace industry. Instead of a commercial, off-the-shelf radar unit, Provizio is “redefining radars,” Mitrev said, by adding AI neural networks to the radar GPUs so all critical decisions can be made on the radar itself with less than five milliseconds latency to make those decisions. He said Provizio’s goal for its 5D radar is to see up to 600 m (1,969 feet) in 360 degrees in all weather conditions.<blockquote>“Once we have this 5D perception, there is literally no reason to build any other system that will do ADAS or autonomy,” he said, adding that accident prevention is “something tangible that we can solve in the next one, three-to-five, years.”</blockquote>At CES 2023, Provizio said it planned to deliver the first of its 5D Perception platforms by 2025. Provizio’s commercial strategy relies on licensing its technology to Tier 1 suppliers and OEMs. Once better sensors are in more vehicles that accurately understand the world around them, that’s when we can start letting vehicles drive themselves, Mitrev said.“The end goal is mass adoption, to have our 5D perception on all vehicles or a lot of vehicles worldwide, then we bring down the road deaths,” he said. “We believe that this is the right path. The industry has taken this the other way around. [Starting by building a self-driving car] is just too complex, let alone with only cameras, as some companies claim.”

Provizio offered demo drives of its technology on the road in Las Vegas during CES in January 2023. These images show some of what the sensors saw during the drive, along with some of Provizio’s identifying data. (Provizio)

"Safety first” is more than a catchphrase. For sensing company Provizio, it’s the only way the transportation industry should introduce autonomous vehicles.

Autonomus safety with radar, not LiDAR

Sensors are ubiquitous in our modern world, playing pivotal roles in numerous sectors. This article delves into their fundamental principles, diverse types, and their significant impact across industries.

What is a Sensor? An In-Depth Exploration and Comprehensive Guide to Engineering Principles and Applications

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sensors

A LiDAR sensor is more compact mountable on a vehicle for driver assistance

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Lidar vs. Radar: Comprehensive Comparison and Analysis

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Sensors

What is a Sensor? An In-Depth Exploration and Comprehensive Guide to Engineering Principles and Applications

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