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Wi-Fi signals enable gesture recognition throughout entire home

washington.edu

31–40 of 81 posts

Re: Wi-Fi signals enable gesture recognition throughout entire home

#32

Earlier quoted context omitted.

probably not, home automation has been "right around the corner" for 60 years.

It is already here if you care to spend some money on it.

I should have said "Home automation for the masses."

I know, I worked at a startup in the space. The people who are capable of spending the money will spend the extra necessary to get someone to install it for them. The people who would install it themselves can't afford even the basic systems, as you need quite a few devices before the things get useful.

The most profitable use we ever found for it was to provide light switches and thermostats in hotels, in places where the wiring in the walls wouldn't allow. That's about it.

Re: Wi-Fi signals enable gesture recognition throughout entire home

#33
post #31

Can this differentiate between multiple humans gesturing at the same time (intentional or otherwise)? What about pets moving around or turning the shower on?

Your pet turns the shower on? That sounds like a real problem

I think he refers to having a system that, using this approach, turns on his shower when he enters it. If this cannot distinguish humans from cats, it would turn on the shower when a cat entered it.

I think that's a bad example. The typical cat would soon learn not to enter the shower.

Re: Wi-Fi signals enable gesture recognition throughout entire home

#34

Earlier quoted context omitted.

Home automation exists and is cheap. There's a huge niche industry built around it. The problem is that people don't actually want it as much as they say they do. That doesn't mean it doesn't exist.

I think they are still a bit too expensive for people. You can either get a whole system for several dozen kUSD, or single elements (e.g. smart outlets) for ~$100 each. The former is a significant expense people might not want to pay at once when buying homes, and the latter is a bit too expensive to buy one by one, because you require to have at least few of those devices before the system starts to get useful.

It's not nearly that expensive, though. A light socket is in the neighborhood of $15. A wall socket is less than $25. A transceiver is $30. For just over $100 you can get the controlling software, two wall switches, two light sockets, and a transceiver.

http://www.thehomeautomationstore.com/x10-home-automation.ht...

Re: Wi-Fi signals enable gesture recognition throughout entire home

#35

Earlier quoted context omitted.

From the paper [1] The WiSee proof-of-concept is implemented in GNURadio using the USRP-N210 hardware. Each USRP is equipped with a XCVR2450 daughterboard, and communicates on a 10 MHz channel at 5 GHz. Since USRPN210 boards cannot support multiple daughterboards, we built a MIMO receiver by combining multiple USRP-N210s using an external clock. In our evaluation, we use MIMO receivers that have up to five antennas. W…

I think you'd still have to hack the routers to provide the external clock, as the whole scheme depends on accurate sensor fusion between multiple antennas.

Not only you have to hack the routers, once inside the router you'll have to flash a custom wireless firmware, or "radio" firmware. And also the Chipset must be flexible enough to allow all the iFFT shenanigans. I think it's a stretch to say you could do this with a common wifi device, maybe with a very specific wifi chipset you could, and maybe you could make it work with bluetooth or wireless phone chipsets aswell.

That said, it's an excellent paper about a soft-based radar.

Re: Wi-Fi signals enable gesture recognition throughout entire home

#37
post #33
post #31

Earlier quoted context omitted.

Your pet turns the shower on? That sounds like a real problem

I think he refers to having a system that, using this approach, turns on his shower when he enters it. If this cannot distinguish humans from cats, it would turn on the shower when a cat entered it. I think that's a bad example. The typical cat would soon learn not to enter the shower.

> I think that's a bad example. The typical cat would soon learn not to enter the shower.

My black lab, however, would enter the shower every time I forgot to close the door.

Re: Wi-Fi signals enable gesture recognition throughout entire home

#38

Can this differentiate between multiple humans gesturing at the same time (intentional or otherwise)? What about pets moving around or turning the shower on?

I think this is where AI comes in -- it should be possible for AI to discern meaningful/non-meaningful movements (based on size, speed, previous state, etc.)

Re: Wi-Fi signals enable gesture recognition throughout entire home

#39

Can this differentiate between multiple humans gesturing at the same time (intentional or otherwise)? What about pets moving around or turning the shower on?

" If a person wants to use the WiSee, she would perform a specific repetition gesture sequence to get access to the receiver. This password concept would also keep the system secure and prevent a neighbor – or hacker – from controlling a device in your home. "

Re: Wi-Fi signals enable gesture recognition throughout entire home

#40
post #10
post #7

If used right, this would disrupt home security industry so hard. It would be possible to get rid of any motion detectors, if I am not mistaken.

If I understand this correctly, you would really be replacing one sort of motion detector with another. The article is talking about phased array stuff, stuff you can't do with stock wifi equipment. All the regular wifi equipment is just providing the "light" the special receiver needs to see.

So really, it would make it impossible to get rid of motion detectors. You could never really be sure that one isn't nearby.
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