Lidar window obstruction detection
By detecting and analyzing obstructions in the LIDAR window using a signal processing system, generating reflectivity maps, identifying the impact of obstructions, and taking measures to mitigate the impact, the system has solved the safety hazards caused by obstructions in the LIDAR system and ensured safe operation.
Patent Information
- Application Number
- CN202080105689.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2020-08-14
- Filing Date
- 2020-08-31
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2040-08-31
AI Technical Summary
The beam of a LIDAR system can be blocked by rain, water droplets, mud, road salt, insects or other debris, causing beam obstruction or attenuation and creating safety hazards. Existing technologies are unable to effectively detect and mitigate the impact of obstructions.
An obstruction on the LIDAR window is detected using a signal processing system. By generating a distance-correlated baseband signal and analyzing the reflectivity spectrum, the obstructed field of view and the energy reflected by the obstruction are identified. The impact of the obstruction on the system operation is determined, and the impact is mitigated by measures such as deceleration, stopping, or cleaning the window.
It enables effective detection and assessment of obstructions to the LIDAR system, ensuring safe system operation, mitigating the impact of obstructions on the system in a timely manner, and preventing safety risks.