Engineers prove their technique is effective even with the lowest-cost WiFi devices
    • Tlf@feddit.orgEnglish
      8·
      8 天前

      Just imagine how much humanity could benefit if sharing and accessing knowledge was freely available for almost anyone

    • YiddishMcSquidish@lemmy.todayEnglish
      5·
      8 天前

      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!

  • panda_abyss@lemmy.caEnglish
    911·
    9 天前

    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.

    • krunklom@lemmy.zipEnglish
      17·
      9 天前

      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?

        • krunklom@lemmy.zipEnglish
          141·
          9 天前

          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.

          • TwoDogsFighting@lemmy.mlEnglish
            10·
            9 天前

            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.

            • magz :3@lemmy.blahaj.zoneEnglish
              5·
              9 天前

              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

      • tekato@lemmy.worldEnglish
        4·
        9 天前

        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.

            • krunklom@lemmy.zipEnglish
              4·
              9 天前

              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.

      • SaveTheTuaHawk@lemmy.caEnglish
        4·
        9 天前

        Wear an aluminum foil vest and a Faraday suit. Burn your computer after reading, I’ve said too much…

    • alecbowles@feddit.ukEnglish
      5·
      9 天前

      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.

  • DoucheBagMcSwag@lemmy.dbzer0.comEnglish
    76·
    9 天前

    Insurance companies…sorry you’re denied for being a health risk…we can see from your home internet that you’re an unhealthy person

    • hansolo@lemmy.todayEnglish
      18·
      9 天前

      Remember kids, you can buy your own home fiber router! Don’t live with someone else’s equipment between you and the internet.

  • paraphrand@lemmy.worldEnglish
    71·
    9 天前

    Damn. “TikTok would like to access WiFi”

    We need new permissions for this shit. WiFi can do presence detection and now heart rate? What next? Eye tracking?

  • DeathByBigSad@sh.itjust.worksEnglish
    511·
    9 天前

    Inb4 the cops starts doing nonconsensual “polygraph tests” using wifi

    Those 5G Conspiracy Theorists probably feel vindicated after reading this lol

  • Dalraz@lemmy.caEnglish
    45·
    9 天前

    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.

  • da_cow (she/her)@feddit.orgEnglish
    35·
    9 天前

    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.

    • GamingChairModel@lemmy.worldEnglish
      5·
      9 天前

      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?

      • da_cow (she/her)@feddit.orgEnglish
        3·
        8 天前

        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.

        • WhyJiffie@sh.itjust.worksEnglish
          1·
          8 天前

          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?

    • SaveTheTuaHawk@lemmy.caEnglish
      133·
      9 天前

      Sure, everyone is getting spied on by everyone because everyone is so damned important to everyone.

      • heroname@programming.devEnglish
        15·
        9 天前

        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.

      • da_cow (she/her)@feddit.orgEnglish
        9·
        9 天前

        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.

  • inconel@lemmy.caEnglish
    25·
    9 天前

    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.

  • dohpaz42@lemmy.worldEnglish
    20·
    9 天前

    And I guarantee some organization will figure out how to use this for some police state bullshit.

  • JoshuaFalken@lemmy.worldEnglish
    14·
    9 天前

    2026: Major grocers found using customer heart rate to personalise prices - higher the pulse, higher the price

        • AngryCommieKender@lemmy.worldEnglish
          210·
          9 天前

          90 is damn near perfect for most adults. It’s a little high for children, but even for most teens that would be right in the middle of “the green zone.” My resting heart rate of 60 is way too low especially combined with my regular blood pressure of 100/50

          • AlecSadler@lemmy.blahaj.zoneEnglish
            5·
            9 天前

            Hm I’m not sure I’d say it’s perfect? I thought 70-80 was?

            My cardiologist said it isn’t really “danger zone”, but if it were like 100+ it might be concerning.

            I have had all the scans done, including a close look at my hearteries, and everything came back (surprisingly) clean.

    • sturger@sh.itjust.worksEnglish
      2·
      8 天前

      I’ve heard of similar, but how exactly does this work? Does it say $0.99 on the shelf and the receipt winds up being $1.50?

      • JoshuaFalken@lemmy.worldEnglish
        1·
        8 天前

        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.

        • sturger@sh.itjust.worksEnglish
          1·
          8 天前

          Good point. A US department store chain – Kohl’s – has been using electronic shelf labels that change several times per day. Not sure how they handle the discrepancies. How do I prove the product was prices $1 when I picked it up if the label now says $2? Is it my responsibility to notice the register price was different?

          I more or less avoided Kohl’s, so I’m not sure how that was handled.

  • Mr_Dr_Oink@lemmy.worldEnglish
    14·
    8 天前

    Wifi sognals can read my heart rate, and be used to track me around my house. But I still can’t get a signal in my room one floor up from the router.