hornej's comments

hornej | 4 years ago | on: Worldle

Trying to pronounce this is the hardest thing I’ve ever done

hornej | 4 years ago | on: mmWave radar, you won't see it coming

lol, thanks. fixed it

hornej | 4 years ago | on: mmWave radar, you won't see it coming

I've just used it for the point cloud data which can be streamed via USB. If you want to stream the raw data I think you'll need https://www.ti.com/tool/DCA1000EVM. it has a 1Gbps ethernet port on it.

hornej | 4 years ago | on: mmWave radar, you won't see it coming

quite possibly. i didn't dive down that rabbit hole so just said 'too early' ¯\_(ツ)_/¯

would be interested if you have any links about it

hornej | 4 years ago | on: mmWave radar, you won't see it coming

My original intro was about Snow Crash. Still waiting for mmWave on my skateboard http://pages.erau.edu/~andrewsa/Project%203/Thompson_David/S...

hornej | 4 years ago | on: mmWave radar, you won't see it coming

we're about to enter worm territory. we can't walk like regular humans. https://www.youtube.com/watch?v=1YFrFSX4cNw

hornej | 4 years ago | on: mmWave radar, you won't see it coming

I agree that if all of a sudden our routers started mapping out the world like in the Batman movie that would be a bad thing.

hornej | 4 years ago | on: mmWave radar, you won't see it coming

I have a lot of experience with TI's IWR6843AOP chip and dev kit. It has 3 transmitters and 4 receivers and it'd be impossible to create a facial reconstruction with it.

hornej | 4 years ago | on: mmWave radar, you won't see it coming

My main point is the data is anonymous at source. I think having control over how that data is correlated back to an individual is important

hornej | 4 years ago | on: mmWave radar, you won't see it coming

Power consumption for radar can get down to around 0.5mW (edit)

But I imagine for 60GHz WiFi it's probably pretty power hungry.

At this point there's not much noise in the mmWave spectrum (it won't be competing with 2.4GHz and 5GHz anyways). And mmWave doesn't travel that far which is one of the main reasons the FCC unlicensed it in the first place.

Might be worth keeping an eye on UWB for AR/VR headsets https://www.embedded.com/wireless-transceivers-use-uwb-for-l...

hornej | 4 years ago | on: mmWave radar, you won't see it coming

technology is a political/legal problem. the printing press, gunpowder, the internet. technology has always been in the middle of political/legal problems.

can't be evil > don't be evil.

hornej | 4 years ago | on: mmWave radar, you won't see it coming

There has been research done on gait recognition https://techxplore.com/news/2018-08-artificial-neural-networ...

mmWave can be used to identify unique traits http://www.cs.ox.ac.uk/files/10889/%5BDCOSS19%5DmID.pdf

hornej | 4 years ago | on: mmWave radar, you won't see it coming

This stud finder uses UWB radar (lower frequency) https://www.amazon.com/Bosch-D-Tect-Floor-Scanner-Technology...

hornej | 4 years ago | on: mmWave radar, you won't see it coming

all sensors/technology are invasive to a degree, but I would argue radar fairs well in usefulness and anonymity in comparison to other sensors.

if the data were leaked, would you rather have some of your vitals and point cloud data exposed, or a video of you taking a shower?

hornej | 4 years ago | on: mmWave radar, you won't see it coming

most hall effect sensor applications i've seen use a schmitt trigger and output a digital (on/off) signal

hornej | 4 years ago | on: mmWave radar, you won't see it coming

thats a good point about the hall sensors. i'll update that. PIR sensors also output an analog signal, but in practice they are binary.

hornej | 4 years ago | on: mmWave radar, you won't see it coming

there is a risk of being jammed or spoofed which is why there has been a bunch of research done in the automotive industry. https://www.caee.utexas.edu/prof/bhat/ABSTRACTS/SecurityOver...

But I don't think there is much risk in gesture control.

hornej | 4 years ago | on: mmWave radar, you won't see it coming

A couple examples to show what the mmWave data looks (bathroom, living room, etc)

Intelligent fall detection using TI mmWave radar sensors https://www.youtube.com/watch?v=lsIo_HIk4GY&t=93s

3D Occupancy Sensing For Home and Office https://www.youtube.com/watch?v=9EDhJQbLNyo&t=83s

As you can see the radar doesn't reveal too much, while still being able to discern a lot of what is going on in each scene.

hornej | 4 years ago | on: mmWave radar, you won't see it coming

I've been following and building mmWave radar stuff for a little over a year now and I wanted to write an intro to help anyone get up to speed on how it works, why it's special, and what's been happening in the space.