WiFi signals can measure heart rate—no wearables needed

The problem is not sharing and accessing, but generating. If we had a system where people would be paid for generating knowledge, then they wouldn't have to charge for accessing knowledge.

That's why a lot more research should be paid for by the government. In exchange, government-funded research would be excluded from having patents and/or copyright.

is it not?

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 in

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.

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.

Not everyone, just Americans and other surveillance states. I have no idea about Canada but probably you too.

Care to explain what you mean? Are you saying you can run fiber in your house? Doesn't that still require some form of equipment from an ISP to actually go out to the internet?

Turns out the tinfoil hat gang was right the whole time.

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.

Own the network. Run OSS.

That's about it.

Put the house in a faraday cage?

What?

That makes sense. I assume these exotic ability’s require precise control of the radios. So, for now, until an API made, we should be safe.

Apps watch how we move/rotate devices to understand whether we’re walking, resting, lying down, etc., I assume? (The most popular apps I mean with large data teams)

Wish that stuff could be turned off unless it was e.g. a game that made legitimate use of the accelerometer.

I think they mean without a phone. A 2.4ghz radio can be used as a presence detection radar.

Dog... What?

robo voice: There are 352 hot, single women in your area.

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.

I was referencing digital price labels that retailers are installing.

This technology is being touted by the companies putting them in place to be a cost saving measure as staff no longer need to print new labels and manually replace them for products on the shelf. This is true in that it is a benefit of digital labelling, however there are many other usage options that could be implemented after installation.

• alter prices around lunch hour for ready meals and snacks at retailers in walking distance to secondary schools
• automatic increases for products being purchased more rapidly than historical averages to capitalize on a yet unknown trend
• increases simply as stock begins running low

Imagine in a few years when this technology is combined with network snooping of phone identification, loyalty rewards card purchase histories, and automatic buying of customer information from data brokers, all to create a profile that predicts when a person would be likely to be menstruating and the moment they walk in the store, the hygienic products they buy every month raise in price by 30%.

It's a bleak future I'm afraid.

That's quite high.