Im extremely interested in how well this breathing rate detection works. Im currently working on an optical respiratory rate monitor project.
Radar fall detection and breath rate under $40
31–40 of 59 posts
Re: Radar fall detection and breath rate under $40
#32When my late father moved into the nursing home they stuck him in the basement which had long hallways and at the time was mostly vacant. He had a walker and it didn't dawn on us it would ever be a problem. But then he had a fall and couldn't get up. Anywhere else in the facility a staff member would have found him within five minutes. After a half hour and multiple failed attempts to stand he remembered his cell pho…
> A device like this could have alerted someone at the facility that he had fallen, this is a very big deal and it's going to save lives. Nope. It will never get deployed. The problem is that when it fails, who is liable? I've said it over and over, but the revolution in biomedical will happen when someone solves the problem of indemnity and not before.
You mean devices like https://www.medicalalert.com/fall-detection/
Or these https://www.consumeraffairs.com/medical-alert-systems/fall-d...
Wearable fall detection devices are already a relativly crowded field. The liability doesn't seem to have been a show stopper yet.
I don't see why the non-wearable variety should face a substantially higher legal standard (although they do seem more technically challanging).
Re: Radar fall detection and breath rate under $40
#33> what it sees is not personally identifiable
This is ridiculously naïve. Gait recognition is a thing. Who knows what other kind of analysis can be done using point cloud and velocity vectors.
Re: Radar fall detection and breath rate under $40
#34I like fall detection topic. It has purpose helping elders, albeit it will probably not be another hockey stick growth venture. I invested some time and conducted interviews with potential customers. For the sensor comes time of flight camera https://www.seeedstudio.com/DepthEye-S2-VGA-Resolution-ToF-C... in mind. It can be used for other applications in care too. Care homes have €€€ and would like to start test projects immediately.
Maybe somebody wants team up on this? My e-Mail is in my profile.
Re: Radar fall detection and breath rate under $40
#35> what it sees is not personally identifiable This is ridiculously naïve. Gait recognition is a thing. Who knows what other kind of analysis can be done using point cloud and velocity vectors.
Can you recommend any papers on this?
Re: Radar fall detection and breath rate under $40
#36WiFi can be used to monitor heart rate, falls and other human activity, through your (and neighbor) walls, https://www.theverge.com/2022/1/3/22864783/sengled-smart-hea... DFWS (Device-Free Wireless Sensing) is possible with low-cost ESP32 devices and custom firmware, https://academic.oup.com/jcde/article/7/5/644/5837600 802.11bf WiFi Sensing is scheduled to be part of WiFi 7 in 2024, https://news.ycombinator.com/item…
> WiFi can be used to monitor heart rate
You had me worried, but not yet it can't. From the article:
> built-in health monitoring using radar technology
It is a Wifi bulb with radar.
The journal article implies it is possible, but they didn't demonstrate any applications, just some characteristics of the ESP platform that may enable it.
Re: Radar fall detection and breath rate under $40
#37WiFi can be used to monitor heart rate, falls and other human activity, through your (and neighbor) walls, https://www.theverge.com/2022/1/3/22864783/sengled-smart-hea... DFWS (Device-Free Wireless Sensing) is possible with low-cost ESP32 devices and custom firmware, https://academic.oup.com/jcde/article/7/5/644/5837600 802.11bf WiFi Sensing is scheduled to be part of WiFi 7 in 2024, https://news.ycombinator.com/item…
> WiFi can be used to monitor heart rate You had me worried, but not yet it can't. From the article: > built-in health monitoring using radar technology It is a Wifi bulb with radar. The journal article implies it is possible, but they didn't demonstrate any applications, just some characteristics of the ESP platform that may enable it.
> It is a Wifi bulb with radar.
The only radios in the bulb are Wi-Fi and Bluetooth. By "radar technology" they mean doppler shift in Wi-Fi radio reflections. They could be using something like Qualcomm's 60Ghz 802.11ay WiFi radio, but that is probably expensive, https://www.qualcomm.com/news/releases/2018/10/16/qualcomm-d....
https://us.sengled.com/blogs/news/the-biggest-ces-2022-smart...
> We earned this year’s award for a product targeted to launch in the fourth quarter: our Smart Health Monitoring Light. Featuring a Wi-Fi, Bluetooth Mesh dual chip, the bulb will provide a number of features, including biometric measurement tracking of heart rate, body temperature, and other vital signs, as well as sleep tracking. By connecting multiple bulbs via Bluetooth Mesh and creating a virtual map across your home, this product can even help detect human behavior and determine if someone has fallen and then send for help.
> The journal article implies it is possible, but they didn't demonstrate any applications, just some characteristics of the ESP platform that may enable it
There's been a decade of research in Wi-Fi (2.4/5Ghz) sensing of human activity, e.g. here are 400+ research papers with steady improvement in detection techniques, https://dhalperi.github.io/linux-80211n-csitool/#external. From that list, a 2017 paper on respiration detection, https://ieeexplore.ieee.org/document/8210837
> Wi-Fi based respiration detection technique has attracted much attention due to its device-free and low-deployment-cost. However, most existing studies focus on respiration detection in experimental environments, without considering the impact of people around (it often occurs in our daily life), therefore, if there are several people in the system, their detection will fail. To address this open issue, we propose TinySense, a novel approach that can detect multiple persons' respiration at a time.
Re: Radar fall detection and breath rate under $40
#38When my late father moved into the nursing home they stuck him in the basement which had long hallways and at the time was mostly vacant. He had a walker and it didn't dawn on us it would ever be a problem. But then he had a fall and couldn't get up. Anywhere else in the facility a staff member would have found him within five minutes. After a half hour and multiple failed attempts to stand he remembered his cell pho…
You can easily do Fall Detection with a modern cell phone - I wrote such an app in 2009, it presented a 3D interface to the user to show them it was working, you could attach it to your belt and safely walk around anywhere, and if it detected a fall it would send SMS alerts, make a sound, etc. I had users that swore by this app, it actually protected mutliple end-users (elderly, sufferers of MS, etc.) and was very well received by the users who trusted it.
The 6dof Gyroscope/Accelerometer sensors in most phones are perfectly adequate for the task.
It worked very well until it was removed from the Play Store a few years ago, but you can still find the APK floating around (https://apkfun.com/down_Fall-Detector.html) - although there are a lot more competing apps like this, it was actually one of the first to do reliable fall detection and reporting on Android ...
Main thing about Fall Detectors: TEST them. Really, really test them. You'd be surprised how well some algorithms work and how poorly they can perform if you do a 'slow fall', etc.
Re: Radar fall detection and breath rate under $40
#39When my late father moved into the nursing home they stuck him in the basement which had long hallways and at the time was mostly vacant. He had a walker and it didn't dawn on us it would ever be a problem. But then he had a fall and couldn't get up. Anywhere else in the facility a staff member would have found him within five minutes. After a half hour and multiple failed attempts to stand he remembered his cell pho…
You can easily do Fall Detection with a modern cell phone - I wrote such an app in 2009, it presented a 3D interface to the user to show them it was working, you could attach it to your belt and safely walk around anywhere, and if it detected a fall it would send SMS alerts, make a sound, etc. I had users that swore by this app, it actually protected mutliple end-users (elderly, sufferers of MS, etc.) and was very we…
>You can easily do Fall Detection with a modern cell phone
Obviously we could do this since phones had accelerometers, so I'm not sure if you read the the product description, but these radar sensors allow you to do fall detection WITHOUT having to clip a phone or any other sensor onto people.
Way, way more convenient and better for privacy. I can't imagine grandma will take her phone with her in her pijamas when she goes to the bathroom in the middle of the night, just to have her fall status sensed.
These sensors are a real game changer.
Re: Radar fall detection and breath rate under $40
#40Earlier quoted context omitted.
You can easily do Fall Detection with a modern cell phone - I wrote such an app in 2009, it presented a 3D interface to the user to show them it was working, you could attach it to your belt and safely walk around anywhere, and if it detected a fall it would send SMS alerts, make a sound, etc. I had users that swore by this app, it actually protected mutliple end-users (elderly, sufferers of MS, etc.) and was very we…
>You can easily do Fall Detection with a modern cell phone Obviously we could do this since phones had accelerometers, so I'm not sure if you read the the product description, but these radar sensors allow you to do fall detection WITHOUT having to clip a phone or any other sensor onto people. Way, way more convenient and better for privacy. I can't imagine grandma will take her phone with her in her pijamas when she…
I disagree that this is more convenient/better for privacy.
With the app: the user already has a cell phone, and doesn't need to buy anything else to get protected from falls. No proprietary hardware, just an app to install and he's safe. Plus, he'll always have his phone on him and can call/be called whenever deemed necessary by his caregivers.
There are no privacy implications whatsoever, because the app only reports to the people it is configured to report to - by SMS and Twitter, as well as local audio alerts.
BTW, I built this app for a company that had already developed hardware-based fall detectors, over ten years ago - this is not by any means a new market - which functioned perfectly every time (not needing mmWave) .. and which they determined were not popular because it required extra proprietary/special hardware, which most elderly in this market are suspicious of .. but given the choice to install a Fall Detector on their existing cell phone, which they carry around anyway as a safety net, was a no brainer ..