Self-Driving Sensor Cleaning System for Precision Detection
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Summary
Problems
Peripheral information detection devices in self-driving vehicles, such as lidar systems, are exposed to wind and rain, leading to reduced detection precision due to dirt and foreign objects adhering to the device body, which affects the accuracy of sensors.
Innovation solutions
A peripheral information detection device equipped with a wiping mechanism and a cleaning fluid circulation system, featuring a rotary shaft, wiper, and nozzle, that continuously wipes off foreign objects and applies cleaning fluid to the device body, ensuring effective removal of dirt and maintaining sensor precision.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If the peripheral information detection device is mounted on the vehicle roof to detect peripheral information, then the detection capability is improved, but the device body becomes exposed to wind and rain causing dirt accumulation and reduced detection precision
Why choose this principle:
The patent extracts the cleaning function from the sensor system by adding a separate wiping mechanism and cleaning fluid supply system. This allows the sensor to maintain its mounting position for optimal detection while a dedicated cleaning subsystem removes contaminants, thus resolving the contradiction between exposure to environmental factors and maintaining detection precision.
Principle concept:
If the peripheral information detection device is mounted on the vehicle roof to detect peripheral information, then the detection capability is improved, but the device body becomes exposed to wind and rain causing dirt accumulation and reduced detection precision
Why choose this principle:
The cleaning fluid is supplied to the device body surface before dirt accumulation significantly impacts sensor performance. The wiping mechanism is activated proactively to prevent rather than merely remedy contamination, maintaining detection precision by addressing the harmful effect before it degrades sensor function.
Application Domain
Data Source
AI summary:
A peripheral information detection device equipped with a wiping mechanism and a cleaning fluid circulation system, featuring a rotary shaft, wiper, and nozzle, that continuously wipes off foreign objects and applies cleaning fluid to the device body, ensuring effective removal of dirt and maintaining sensor precision.
Abstract
A peripheral information detection device includes a device body that is mounted with sensors each including a detection section that detects peripheral information, and a wiping mechanism that wipes off foreign objects that have adhered to locations of the device body facing the detection sections.