LiDAR Laser Module Height Layout for Wide Field of View
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Solution Overview
Problem
Conventional LiDAR systems with multiple laser transceiving devices face challenges in maintaining a required detection field of view without increasing the overall volume, as adjustments in distance and deflection angle lead to inefficient target detection and increased space occupancy.
Innovation Solution
The LiDAR system incorporates an adjusting structure with convex platforms on its base, allowing each laser transceiving device to maintain a preset distance from the base and angle, ensuring optimal detection field of view without increasing the device's volume, by adjusting the height and position of the laser transceiving and reflecting modules relative to the galvanometer module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the laser transceiving device is adjusted to be farther away from the galvanometer device to achieve a larger deflection angle, then the detection field of view requirement is met, but the overall volume of the LiDAR increases
Solution Approach 1:
The patent transitions from adjusting distance in one dimension to adjusting height in another dimension. By placing laser transceiving devices at different heights above the bearing surface, the system achieves different deflection angles without increasing the horizontal distance from the galvanometer, thus maintaining a compact overall volume while meeting detection field of view requirements.
Solution Approach 2:
The patent applies different height adjustments to different laser transceiving devices based on their specific requirements. Each device is positioned at a customized height above the bearing surface, creating local variations in deflection angles while maintaining a unified compact structure. This localized optimization allows each device to achieve its required detection field of view without collectively increasing the overall volume.
2Productivity
If multiple laser transceiving devices are arranged with different distances from the galvanometer, then each device can have optimal detection parameters, but the structural complexity and space occupancy increase
Solution Approach 1:
The patent segments the positioning function by introducing independent height adjustment for each laser transceiving device through convex platforms. This segmentation allows each device to be optimized independently for detection efficiency while the modular platform structure prevents overall structural complexity from escalating, as each adjustment is localized to a discrete platform rather than requiring complex inter-device spacing.
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
This configuration enhances detection efficiency while minimizing the LiDAR's overall space occupancy, ensuring effective target detection without the need for increased volume, thus optimizing the detection field of view and reducing the system's size.
Implementation Method 1
a galvanometer module of the LiDAR being fixed on the bearing surface
Implementation Method 2
Each mirror is configured to reflect the outgoing laser generated by each laser transceiving module to the galvanometer surface in a one-to-one correspondence
Implementation Method 3
each of the laser transceiving devices being able to generate an outgoing laser emitted to the galvanometer module
Data Source
AI summary
The present application discloses a LiDAR, which includes a base including a bearing surface, an adjusting structure located on the bearing surface, and a laser transceiving module including a plurality of laser transceiving devices. A galvanometer module of the LiDAR is fixed on the bearing surface. Each laser transceiving device is fixed on the adjusting structure, respectively. Each laser transceiving device is able to generate an outgoing laser emitted to the galvanometer module, respectively. The adjusting structure is configured so that each of the laser transceiving devices has a corresponding distance from the bearing surface, and therefore, the outgoing lasers generated by each of the laser transceiving devices form a preset laser detection field of view outside the LiDAR.