Lidar Base Diversion Gap Airflow Cleaning
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Solution Overview
Problem
The existing methods for cleaning lidar devices using water often result in water droplets remaining on the surface, which can cause occlusion, refraction, and scattering of laser signals, leading to distorted and discontinuous point cloud data and affecting the performance of the lidar device.
Innovation Solution
A lidar base with a diversion gap and air passage system that uses high-pressure airflow to clean the lidar assembly, ensuring no dead angles and maintaining the stability of the lidar device by avoiding water-related interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If water flow is used to clean the lidar device, then cleaning effect is improved, but water droplets remain on the surface causing occlusion, refraction, and scattering of laser signals
Solution Approach 1:
The patent replaces the water-based mechanical cleaning system with a pneumatic system using high-pressure air flow. The air outlet directs high-speed air toward the lidar assembly to blow away contaminants without leaving residual droplets that would interfere with laser signals.
Solution Approach 2:
The patent employs pneumatic principles by using compressed air delivered through an air outlet to clean the lidar assembly. The high-pressure air flow effectively removes dust and debris while avoiding the problem of water droplet residue that causes optical interference.
2Productivity
If air outlet is directed toward lidar assembly, then cleaning coverage is improved, but airflow may affect lidar stability
Solution Approach 1:
The patent applies local quality by directing the air outlet specifically at the outer surface of the lidar assembly where contaminants accumulate. The airflow is concentrated on the cleaning-needed areas while the overall structural stability of the lidar device remains unaffected.
Solution Approach 2:
The patent uses partial action by applying high-pressure air flow only to the external surfaces of the lidar assembly that require cleaning, rather than exposing the entire device to strong airflow. This localized approach ensures thorough cleaning coverage while maintaining device stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides effective cleaning of the lidar assembly while ensuring the stability and performance of the device, with a simple and cost-effective structure.
Implementation Method 1
an air outlet end of an air passage is in communication with the diversion gap
Data Source
Figure 1
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AI summary
A lidar base, a lidar device and an autonomous vehicle are provided, and relate to the technical field of automatic driving. Wherein, the lidar base includes: a seat body for installing a lidar assembly; a cover plate arranged on the seat body, and a diversion gap being defined between the cover plate and the base body, wherein an air outlet of the diversion gap is arranged toward the lidar assembly. The lidar base of the embodiment of the present disclosure not only has a good cleaning effect on the lidar assembly, but also can ensure the working stability of the lidar assembly, and also has the advantages of a simple structure and low cost (FIG. 1).