3 ms·

I expected to find some of the tech that snow plows use on Donner Pass for lane keeping, RRDPS, but couldn't find any info indicating that they are using highwa

by hoherd 1y ago

I expected to find some of the tech that snow plows use on Donner Pass for lane keeping, RRDPS, but couldn't find any info indicating that they are using highway embedded sensors to aid the autonomous trucks. https://dot.ca.gov/-/media/dot-media/programs/research-innovation-system-information/documents/final-reports/ca04-0289-final-report-a11y.pdf https://dot.ca.gov/-/media/dot-media/programs/research-innov... > The RRPDS must maintain an estimate of the vehicle state (i.e., position, velocity, heading, and heading rate) relative to the roadway with position accurate to a few centimeters.

AlotOfReading 1y ago
Most autonomous vehicles localize by using a point cloud map of the route with "ground truth" position data (often via GPS). The vehicle looks around and finds the closest point cloud that matches the map, and makes some adjustments for vehicle state (aka pose). GNSS is usually a secondary input if it's used significantly at all.
analog31 1y ago
The farmers I know tell me that their tractors and combines use autonomous guidance, including turning at the end of each row.
- bluGill 1y ago
  They do - I build those for john Deere. basic high school geometry is all it takes once you have gps accurate to a few cm. been working for more than 10 years (though until reciently hard to settup) the important part to note as those systems don't have detection of anyone/thing that might be there. In a rural field no problem as nobody is there but on a city road there will be plenty of things to watch out for. We are working on the safety parts, I'm not in that area so I'm not sure what the current state is.
  - analog31 1y ago
    Yeah, the farmers tell me that they still have to be watching from the cab. Apparently deer can be caught off guard for some strange reason.

3 ms·

I expected to find some of the tech that snow plows use on Donner Pass for lane keeping, RRDPS, but couldn't find any info indicating that they are using highwa

by hoherd 1y ago

AlotOfReading 1y ago
Most autonomous vehicles localize by using a point cloud map of the route with "ground truth" position data (often via GPS). The vehicle looks around and finds the closest point cloud that matches the map, and makes some adjustments for vehicle state (aka pose). GNSS is usually a secondary input if it's used significantly at all.
analog31 1y ago
The farmers I know tell me that their tractors and combines use autonomous guidance, including turning at the end of each row.
- bluGill 1y ago
  They do - I build those for john Deere. basic high school geometry is all it takes once you have gps accurate to a few cm. been working for more than 10 years (though until reciently hard to settup) the important part to note as those systems don't have detection of anyone/thing that might be there. In a rural field no problem as nobody is there but on a city road there will be plenty of things to watch out for. We are working on the safety parts, I'm not in that area so I'm not sure what the current state is.
  - analog31 1y ago
    Yeah, the farmers tell me that they still have to be watching from the cab. Apparently deer can be caught off guard for some strange reason.