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Sub-$200 Lidar could reshuffle auto sensor economics

spectrum.ieee.org

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Re: Sub-$200 Lidar could reshuffle auto sensor economics

#12
post #7

> laser pulses > phased-array I'm not well versed into RF physics. I had the feeling that light-wave coherency in lasers had to be created at a single source (or amplified as it passes by). That's the first time I hear about phased-array lasers. Can someone knowledgeable chime in on this?

A phased array is an antenna composed of multiple smaller antennas within the same plane that can constructively/destructively aim its radio beam within any direction it is facing. I'm no radio engineer but I think it works via an interference pattern being strongest in the direction you want the beam aimed. This is mostly used in radar arrays though I suppose it could work with light too since it is also a wave.

Re: Sub-$200 Lidar could reshuffle auto sensor economics

#13
post #11

The mind salivates at the idea of sub-$100 and soon after sub-$10 Lidar. We could build spatial awareness into damn near everything. It'll be a cambrian explosion of autonomous robots.

And, I guess, even more advanced surveillance.

The minute internet became widespread it was game over.

Pros and cons. :/

It'll never happen, but we need a bill of rights for privacy. The laypeople aren't well-versed or pained enough to ask for this, and big interest donors oppose it.

Maybe the EU and states like California will pioneer something here, though?

Edit: in general, I'm far more excited by cheap lidar tech than I am afraid of the downsides. We just need to be vigilant.

Re: Sub-$200 Lidar could reshuffle auto sensor economics

#15
post #2

I saw a Waymo in Seattle, today. If Waymo can get Seattle right, that gives me a lot of confidence that their stack is very capable of difficult road conditions. Note: I have not had the pleasure of riding in one yet, but from what my friend in SJ says, it’s very convenient and confidence-inspiring.

I have had the pleasure of riding a few times in SanFrancisco. The drive was delightful and felt really safe. It handled the SF terrain, traffic and mixed traffic like trams very well. I wouldnt trust a self driving tesla ( or any camera only systems) though!

Tesla doesnt have Lidar?

Re: Sub-$200 Lidar could reshuffle auto sensor economics

#16
post #13
post #11

Earlier quoted context omitted.

And, I guess, even more advanced surveillance.

The minute internet became widespread it was game over. Pros and cons. :/ It'll never happen, but we need a bill of rights for privacy. The laypeople aren't well-versed or pained enough to ask for this, and big interest donors oppose it. Maybe the EU and states like California will pioneer something here, though? Edit: in general, I'm far more excited by cheap lidar tech than I am afraid of the downsides. We just nee…

The EU already has. GDPR and the AI Act puts a lot of limits on what you can do in the open space, although it doesn't always go far enough.

Re: Sub-$200 Lidar could reshuffle auto sensor economics

#17
post #6

Oh hell yeah, we can finally stop the braindead attempts to make a safe self-driving car with just cameras.

Tesla actually re-introduced radar sensors in HW4. https://www.teslarati.com/tesla-hardware-4-hd-radar-first-lo...

They might not use them for autopilot, but maybe for some emergency braking stuff, when everything else failed.

Re: Sub-$200 Lidar could reshuffle auto sensor economics

#18
post #11

The mind salivates at the idea of sub-$100 and soon after sub-$10 Lidar. We could build spatial awareness into damn near everything. It'll be a cambrian explosion of autonomous robots.

And, I guess, even more advanced surveillance.

I think we’re well past the point where mass surveillance was a technical challenge. Mass oppression through autonomous violence however…

Re: Sub-$200 Lidar could reshuffle auto sensor economics

#20

Earlier quoted context omitted.

I have had the pleasure of riding a few times in SanFrancisco. The drive was delightful and felt really safe. It handled the SF terrain, traffic and mixed traffic like trams very well. I wouldnt trust a self driving tesla ( or any camera only systems) though!

Tesla doesnt have Lidar?

hooboy, https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...
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