5 ms·
The articulate bus is modeled as two connected vehicles. The back of the bus is presumed to follow the front of the bus. When the front of the bus is out of vie
by jdlshore 4y ago
The articulate bus is modeled as two connected vehicles. The back of the bus is presumed to follow the front of the bus. When the front of the bus is out of view, the software predicts its trajectory. The bug was that the rear of the bus is considered to follow that predicted location even if sensors show differently.
All in all, a very understandable coding mistake.
- bradtemp 4y agoThe problem is the bus front was occluded and thus its position and vector were estimates of growing uncertainty, not direct readings. It is not understandable that an estimate with high uncertainty took precedent over a fully reliable direct reading from multiple sensors
- DANmode 4y agoHardcoding a variable inappropriately is understandable, but is especially inappropriate in the type of system being discussed.