LiDAR Dual Laser Emission Modules Expanded Detection
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Solution Overview
Problem
The detection field of view in existing LiDAR systems is limited due to improper structural design, restricting their ability to effectively detect and analyze targets.
Innovation Solution
A LiDAR device is designed with two laser emission modules positioned on opposite sides of a laser receiving module, with their combined emission fields of view matching the receiving field of view, allowing for a miniaturized design and expanded detection angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If one laser emission module is used, then the device structure is simple, but the detection field of view is limited
Solution Approach 1:
The patent divides the laser emission function into two separate laser emission modules positioned on opposite sides of the laser receiving module. Each module covers a specific angular range (e.g., ±30 degrees), and together they provide a broader combined detection field of view (e.g., ±60 degrees), resolving the contradiction between simple structure and wide detection coverage
Solution Approach 2:
The patent combines the emission fields of view of two laser emission modules to match the receiving field of view of a single laser receiving module. This merging approach expands the overall detection capability while maintaining structural compactness, as the modules share a common mounting structure and coordinate their emission angles
2Adaptability or versatility
If two laser emission modules are used, then the detection angle of view is expanded, but the device complexity increases
Solution Approach 1:
The patent employs asymmetric positioning of the two laser emission modules relative to the laser receiving module, with each module placed on opposite sides at specific angles. This asymmetric arrangement optimizes the combined emission field of view to match the receiving field of view, achieving wide detection coverage while minimizing structural complexity through careful geometric optimization
3Productivity
If the emission field of view does not match the receiving field of view, then the device design is simple, but the receiving rate is reduced
Solution Approach 1:
The patent adjusts the emission angles and fields of view of the two laser emission modules so that their combination precisely matches the receiving field of view of the laser receiving module. By optimizing parameters such as emission angle ranges (e.g., setting each module to cover ±30 degrees to achieve a combined ±60 degrees coverage), the system maximizes the receiving rate without requiring complex additional components
Data Source
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AI summary
A LiDAR device is provided, which includes two laser emission modules and one laser receiving module. The two laser emission modules are separately on opposite sides of the laser receiving module, and a combination of emission fields of view of the two laser emission modules matches a receiving field of view of the laser receiving module. In this application, the two laser emission modules and a laser receiving module are disposed, the combination of the emission fields of view of the two laser emission modules matches the receiving field of view of the laser receiving module, and compared with matching between an emission field of view of one laser emission module and the receiving field of view of one laser receiving module in a related art, it is more flexible to dispose the two laser emission modules, which can implement a miniaturized design for the LiDAR device; and disposing the two laser emission modules can also improve a receiving rate in the field of view of the laser receiving module and expand the detection angle of view of the LiDAR device.