Modular LiDAR Assembly With Baffle Isolation and Detachable Rotation
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Solution Overview
Problem
Existing LiDAR systems have complex structures due to the need to accommodate a positioning column, leading to high production costs and complicated assembly, with the transceiver device often arranged inside the housing, making disassembly inconvenient.
Innovation Solution
The LiDAR design separates the laser transceiver system from the rotating system, allowing them to be manufactured independently, and incorporates a baffle fixing structure with inner and outer housings and a baffle to isolate emitted and reflected lasers, along with a bearing mounting structure that reduces the overall length and improves structural stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transceiver device is arranged inside the housing with a positioning column, then the laser path can be adjusted to avoid the positioning column, but the structure becomes complex and production costs increase
Solution Approach 1:
The patent divides the LiDAR system into separate modules: the transceiver device is detached from the housing, and the rotating system is separated from the base. This segmentation allows each component to be manufactured and assembled independently, reducing overall structural complexity while maintaining functional reliability.
Solution Approach 2:
The transceiver device is extracted from the traditional internal arrangement inside the housing and positioned externally or in a separate module. This extraction eliminates the need for complex optical path adjustments within the housing to avoid the positioning column, simplifying the overall structure.
2Reliability
If the transceiver device is arranged inside the housing, then the laser transmitting and receiving functions are integrated, but assembly becomes complicated and disassembly becomes inconvenient
Solution Approach 1:
The system is segmented into distinct modules: the transceiver device as one module, the rotating system as another, and the housing as a separate component. This allows for simplified assembly processes where modules can be pre-assembled and then quickly integrated, making both assembly and disassembly convenient while maintaining functional integration.
Solution Approach 2:
The patent introduces detachable connections between modules, allowing the system to transition between assembled and disassembled states easily. This dynamic assembly capability maintains the integrated function when assembled while enabling convenient disassembly for maintenance or storage.
3Reliability
If optical elements are provided in the housing to adjust the laser path, then the laser can avoid the positioning column, but production costs increase
Solution Approach 1:
The laser path control function is extracted from the housing and transferred to the separate rotating system. The rotating system uses its rotational movement to change the laser path direction, eliminating the need for expensive optical elements within the housing while maintaining effective laser path control.
Solution Approach 2:
The patent replaces optical path adjustment mechanisms (lenses, mirrors) with a mechanical rotation system. The rotating system uses mechanical rotation to change the direction of the laser beam, which is simpler and more cost-effective to manufacture while achieving the same functional result.
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 design simplifies the structure, reduces production costs, enhances assembly efficiency, and improves laser isolation, resulting in a more efficient and cost-effective LiDAR system.
Implementation Method 1
a transmitting system first emits an emitted laser to the detection area, and then a receiving system receives the reflected laser reflected back from the object in the detection area
Data Source
AI summary
The present application provides a LiDAR. A baffle fixing structure of the LiDAR is set between an inner housing of the LiDAR and a second housing for fixing a baffle that isolates an emitting laser from a reflected device. An angular displacement measuring device of the LiDAR includes a reflecting part and a light emitting part, where the reflecting part includes a plurality of reflecting teeth that extend downwardly and are spaced from each other, the light emitting part obtains a rotation angle of the reflecting part relative to the light emitting part by obtaining the number of the reflecting teeth passed by the measurement light. A rotating system in the LiDAR is arranged on one side of the laser transceiver system and is detachably connected to the laser transceiver system, so that modular production can be carried out, and the production efficiency is improved.