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A Short Introduction to Automotive Lidar Technology

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31–40 of 187 posts

Re: A Short Introduction to Automotive Lidar Technology

#31
post #28
post #3

Fantastic tech that Musk hates

Musk has said several times Lidar is great. It's just a stupid idea for automotive use and he's not wrong. There's nothing similar in nature for a reason.

Time of flight ranging is used in nature by bats and whales/dolphins.

Re: A Short Introduction to Automotive Lidar Technology

#32
post #24
post #4

Earlier quoted context omitted.

It‘s not just Musk. Most automobile manufacturers have maintained that they need to find a way to do it with cheap and pretty sensors.

Theoretically if a human can drive a car using a pair of eyes connected to brain, it should be possible to do that using two cameras connected to some kind of image processing unit.

In theory. In practice neither the cameras nor processors available in cars function anywhere near human level.

Re: A Short Introduction to Automotive Lidar Technology

#33
post #30

Earlier quoted context omitted.

In a recent No Priors podcast with the Waymo Co-CEO Dmitri Dolgov, he talks about how they evaluated just driving with cameras and how it isn't good enough for full autonomy and doesn't meet their bar for safety [1]. 1: https://www.youtube.com/watch?v=d6RndtrwJKE&t=1119s

They went deep down the wrong path and need to justify their mistake. Waymo will be killed off any day now.

That's a bold claim. Care to justify it?

Re: A Short Introduction to Automotive Lidar Technology

#34
post #28
post #3

Fantastic tech that Musk hates

Musk has said several times Lidar is great. It's just a stupid idea for automotive use and he's not wrong. There's nothing similar in nature for a reason.

Rotorwings are also not found in the nature yet they give us ability to navigate in a short distance 3D space better than fixed wing.

Re: A Short Introduction to Automotive Lidar Technology

#35
post #28
post #3

Fantastic tech that Musk hates

Musk has said several times Lidar is great. It's just a stupid idea for automotive use and he's not wrong. There's nothing similar in nature for a reason.

Airplanes don't flap their wings and boats don't wag their tails.

Assuming that all technology should imitate nature is a naive engineering principle. The solution should solve the problem within the given constraints.

Re: A Short Introduction to Automotive Lidar Technology

#36
post #24
post #4

Earlier quoted context omitted.

It‘s not just Musk. Most automobile manufacturers have maintained that they need to find a way to do it with cheap and pretty sensors.

Theoretically if a human can drive a car using a pair of eyes connected to brain, it should be possible to do that using two cameras connected to some kind of image processing unit.

In practice humans aren't particularly safe drivers.

Re: A Short Introduction to Automotive Lidar Technology

#37
post #28

Earlier quoted context omitted.

Musk has said several times Lidar is great. It's just a stupid idea for automotive use and he's not wrong. There's nothing similar in nature for a reason.

Time of flight ranging is used in nature by bats and whales/dolphins.

and humans! https://www.atlasobscura.com/articles/how-to-echolocate

Re: A Short Introduction to Automotive Lidar Technology

#38
post #25

Are LIDAR dangerous to the eyes of other drivers or pedestrians?

They should not be. In theory they can be, but there are strict regulations to prevent that.

What are the regulations and who are the relevant regulatory bodies? I could not find with a google search

Re: A Short Introduction to Automotive Lidar Technology

#39
post #19
post #10

Earlier quoted context omitted.

> They work OK, but cost too much. Costs have dropped dramatically in the past 20 years and continue to do so. > There needs to be a cheap, flush-mounted replacement for those things. Why? Corners are the optimal mounting position for maximum visibility. It allows the car to -in-effect- see around corners in ways no centrally mounted sensor can. > Waymo needs to solve that problem before they do New York. What? Becau…

Have you ever seen the corners of a car that has been parked in a big East-coast city? They will sustain damage during the course of normal operation and storage, and many people will not stop and leave their insurance information, especially if the damage is perceived as minor and happens while the car is parked and the owner not present. Currently, the corners of a car are relatively non-critical to its function an…

They don't stick out that much. The geely vehicle has front sensors recessed just above the front wheel well, without much additional side clearance. Either way, a collision involves regulatory filings, downtime, and sensor recalibration even if no damage is sustained.
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