A Short Introduction to Automotive Lidar Technology

Post by financetechbro » Tue, Nov 26, 2024, 2:28 AM UTC

xnx wrote: post #10

Animats wrote: post #8

That's a reasonable basic overview. I'm surprised that rotating scanners are still used. It's been twenty years since Velodyne built their first one. They work OK, but cost too much. I was expecting flash LIDAR or MEMS mirrors to take over. Continental, the auto parts company, bought the leading flash LIDAR company over a decade ago, but the volume market a big parts company needs never appeared. Waymo is still using…

> 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…

Post by elictronic » Tue, Nov 26, 2024, 2:49 AM UTC

slt2021 wrote: post #72

LIDARs can be blinded by consumer grade laser pointers, I wonder if there are systems that protect LIDARs against adversarial attacks or DOS attacks

Post by edm0nd » Tue, Nov 26, 2024, 3:20 AM UTC

arrakark wrote: post #70

atomic128 wrote: post #14

Here's an interesting "lidar gem" from Hacker News a few years ago: https://news.ycombinator.com/item?id=33554679 Lidar obstacle detection algorithm from a Git repo leaked onto Tor This is a drivable region mapping (obstacle detection) algorithm found in what appears to be a git repo leaked from an autonomous vehicle company in 2017. The repo was available through one or more Tor hidden services for several years. Th…

Which Tor hidden service was this? Asking for a friend...

Post by edm0nd » Tue, Nov 26, 2024, 3:23 AM UTC

jaimex2 wrote: post #28

MaxPock wrote: 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.

Post by UltraSane » Tue, Nov 26, 2024, 3:40 AM UTC

m0llusk wrote: post #41

aftbit wrote: post #19

Earlier quoted context omitted.

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…

Waymos sometimes stop briefly in parking spots while waiting for assignments, but they don't really park as such except in special lots. The big problem I have seen is they tend not to always pull to the curb when releasing passengers and if a door is left even slightly ajar then they will sit there requesting the door be closed even if they are blocking a lane with many cars behind them beeping.