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- cross-posted to:
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One day, WiFi might even be usable as a method for making a reliable network connection
One can dream. For now though it’s the one radio my phone doesn’t use. Mobile network tunneling through Bluetooth baby! My atrial fibrillation when remain between me and my meth dealer! Shout out to Craig!
Just imagine how much humanity could benefit if sharing and accessing knowledge was freely available for almost anyone
is it not?
Depends on how specific the information is and how well it’s hidden among alternative facts
This is really cool and will be useful. My second thought was oh great now my smart TV can see how excited I am watching their injected ads and how many people saw it too. One of the many reasons to never connect modern TVs to the Internet.
The Paper: https://ieeexplore.ieee.org/abstract/document/11096342/metrics#metrics
This is very cool and useful, but at the same time very concerning. While I see a lot of good use cases for this ranging from hospitals to stress recognition in animals I Am also quite scared, that big corporations will use this to spy on us. Luckily currently it is only possible to measure the pulse at about 3m, but it should be possible to increase the range. It may fall short when multiple persons are in detection range, but as far as I have read from the paper they did not test this.
Sure, everyone is getting spied on by everyone because everyone is so damned important to everyone.
Not everyone, just Americans and other surveillance states. I have no idea about Canada but probably you too.
Where do you live that you don’t think America is spying on you too?
Health data is extremely valuable. You can use it to serve more personalised ads or even use it to, as example, define prices for health insurance. When you combine it with lots of other data it becomes even more valuable. Also never forget, big corporations track literally everything. Why not add your heart rate.
Let’s try again: someone is getting spied on by someone because someone is so damned important to someone. And there’s a lot of someones.
Article is paywalled for me.
Does it describe the methodology of how they use the transmitter and receiver?
What specifically are they transmitting? Is it actually wifi signals within the 802.11 protocols, or is “wifi” just shorthand for emitting radio waves in the same spectrum bands as wifi?
Yeah sadly it is paywalled, but I have been lucky enough to get access to it through my university.
Heres what I found regarding your question in the article:
Fig 1 illustrates Pulse-Fi’s system architecture which consists of three main components: data collection using commodity Wi-Fi devices, a CSI signal processing pipeline, and a custom lightweight Long Short Term Memory neural network for heart rate estimation.
Fig 1:
And this is the Setup they used to collect the ESP-HR-CSI Dataset (left site) and the one that other researchers used to collect the E-Health Dataset (right side):
The parts on how they collected the data:
A. ESP-HR-CSI Dataset
We collected the ESP-HR-CSI dataset from seven participants (5 male, 2 female) in a room of a public indoor library. It was collected using two ESP32 devices, one as the transmitter and the other as the receiver. The sampling rate is 80 Hz, with a 20 MHz bandwidth with 64 subcarriers positioned at different distances. Each participant was measured at distances of 1,2 and 3 m for 5 minutes each. The participants sat in a chair between the devices and wore a pulse oximeter on their finger to collect ground-truth information as seen inB. E-Health Dataset
The E-Health dataset [20] contains CSI collected from 118 participants (88 men, 30 women) in a controlled indoor environment measuring 3 m×4 m (Fig 4). The setup consists of a router set in the 5 GHz band at 80 MHz bandwidth as a transmitter, a laptop as receiver and a single-antenna Raspberry Pi 4B with NEXMON firmware for CSI data collection (234 subcarriers). Participants wore a Samsung Galaxy Watch 4 for the ground truth.Each participant performed 17 standardized positions or activities, with each position held for 60 seconds.
To me it sounds like, that they really just used standard WIFI to collect the data (this is especially true for the E-Health Dataset), since all the processing gets done on the Raspberry Pi.
B. E-Health Dataset
The E-Health dataset [20] contains CSI collected from 118 participants (88 men, 30 women) in a controlled indoor environment measuring 3 m×4 m (Fig 4). The setup consists of a router set in the 5 GHz band at 80 MHz bandwidth as a transmitter, a laptop as receiver and a single-antenna Raspberry Pi 4B with NEXMON firmware for CSI data collection (234 subcarriers). Participants wore a Samsung Galaxy Watch 4 for the ground truth.does that mean a passive observer can do all that observations? and that a raspberry pi, with its single average antenna is capable of this?
It may be possible, but I have no clue. It may also be, that the position of the router and the Laptop is important, but that’s probably something you would have to test.
Inb4 the cops starts doing nonconsensual “polygraph tests” using wifi
Those 5G Conspiracy Theorists probably feel vindicated after reading this lol
Those 5G Conspiracy Theorists probably feel vindicated after reading this lol
I rather think they will be let down, given we’re on wifi 7, not 5G, and also no injected nanites were involved.
https://wballiance.com/wp-content/uploads/2019/10/WBA-Wi-Fi-Sensing-paper.pdf
Comcast knows when you masturbate.
Insurance companies…sorry you’re denied for being a health risk…we can see from your home internet that you’re an unhealthy person
Remember kids, you can buy your own home fiber router! Don’t live with someone else’s equipment between you and the internet.
This tech scares the hell out of me.
Great if we can make MRI quality imaging eventually available, but being able to monitor where people are in their homes remotely and their health status in our world is fucking dangerous.
Real question: how do you stop this?
I don’t use wifi at all in my home but I live in an apartment and all my neighbours obviously do.
How in the hell do I stop this from getting into my home?
Turns out the tinfoil hat gang was right the whole time.
Innocuous radio signals are one thing but if my apartment is inundated with radio waves that can literally be used to track my movements and monitor my heartbeat, being forced to allow this is a perverse and sickening invasion of privacy.
If you think the lack of privacy is bad now, just wait till they use this to target done strikes. We’re all in for super fun times.
Yes, 20 people at a government agency are watching you watch Netflix and taking a shit.
the problem is that you don’t need 20 people for this kind of thing. you can just kinda passively slurp the data up from every router and throw it into a machine learning model to be used by cops or sold to advertisers. you don’t need a human in the loop anywhere and it’s essentially impossible to opt out of
Your neighbors WIFI signals are too weak to matter in this case. Even if they were strong enough, this is a receiver-transmitter setup, so it would still be impossible to do unless you connect to their network. Even then, they’d have to assume you’re the only person present between the transmitter and the receiver.
Presence detection through WIFI was already garbage enough, this one is plain unusable.
Good to know.
The stuff I’ve read about recently tracking movements using wifi - would this need more powerful radio waves than most people use or no?
Own the network. Run OSS.
That’s about it.
“Howdy neighbour. Your wireless modem/router combo is mine now. Thxkbye”
Wear an aluminum foil vest and a Faraday suit. Burn your computer after reading, I’ve said too much…
Put the house in a faraday cage?
With 6 ghz wifi you’d need a cage with a size of around 1mm irc.
Copper mesh fabric.
Foil is cheap enough and a good isolator for plenty of things.
So if you don’t want someone to measure your heartbeat and to physically know where you are at all times your only option is to cover your entire living area, including the windows, in aluminum foil?
I guess what I’m getting at here is that this situation is deeply, deeply fucked.
In a world where private health care is the norm, yes. It’s scary.
In a world where Public health care is the main provider of health it isn’t.
oh yes it still is
What?
Edited for better comprehension. I didn’t have my coffee, sorry
Yeah I’m with you.
“Using this technological advancement to improve health care is good”
“Not in countries where health care is publicly run”
“What” is the correct response here.
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Oh, the person selling you medical or life insurance is gonna love this…
Wow, all that with an esp32. No fancy hardware needed.
Which means we can have that data in Home Assistant sooner or later🤔
Capitalism asks whether you are the kind of person harvesting people’s health info without concent or selling aluminum mesh underwear with fearmongering campaign. No other choices.
I am not surprised. Passive WiFi was introduced nearly a decade ago, so it makes sense that measurement systems based on WiFi have come a long way since. It’s frightening, honestly.
How much longer until I can be like “Hey, Google; scan the area for lifeforms?”
“Sure, turning on all downstairs lights”
“Opening the pod bay doors”
0 days
robo voice: There are
352hot, single women in your area.robo voice: There are 352 hot, single women in your area.
robo voice:
350of them have a pulse.
You need some redshirts with you, in case of danger.
And I guarantee some organization will figure out how to use this for some police state bullshit.
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That’s already the original use case. Cardiac signature biometrics, can install in a doorway and do identity verification and track/monitor every individual that passes through the threshold
People do not have that distinct cardiac ECG profiles, and it would be wrong after one coffee.
Holy shit the US state paranoia in the sub. Buy more guns.
https://pmc.ncbi.nlm.nih.gov/articles/PMC9921530/
I wouldn’t be as sure about that as you are
The article you cite states that accuracy drops to 60% if the enrollment and testing data were collected at different sessions. I imagine the effects of coffee or walking on heart rate would make that even worse.
Isn’t this no different then a sonogram
Cool tech but I question it’s usefulness. They focus on clinical in their language but anybody who’s on telemetry orders needs waveforms not beats per minute. I care if they’re suddenly in afib, not that they’re a little tachy after getting up to go to the bathroom.
Well some darker entities probably would appreciate access to this tech. In order to confirm mission complete if you smell what I am cooking.
They mentioned apnea.
Alright give it another 50 grand in investment and give them an access point instead of a $2 WiFi device, you’ll have it
So how long before our phones can measure heart rate from your pocket, or being held in your hand?
They already can by putting your finger on the camera and lighting up your finger with the led light. Then it detects the rhythmic changes picked up by the camera… At least 10+ years ago. It was a good novelty feature, but turns out, for most healthy people, checking your heart rate gets old after a few runs.
I saw demos online where they could also determine heart rate through video. The example I saw was a video of a newborn’s face.
It’s probably possible right now.
