Beam-Splitting Lidar Alignment for Wider Field of View
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Solution Overview
Problem
The detection effect and detection distance of lidar are limited due to the small sizes of laser emission and reception apertures, and the field of view of coaxial optical paths are insufficient, leading to complex and costly adjustments and maintenance.
Innovation Solution
A lidar design incorporating a transceiver component with an emitting assembly, beam splitting assembly, and receiving assembly, where the emitting assembly is aligned with a beam splitting assembly and fixed on a base, and the receiving assembly is aligned with a reflector assembly, with adjustments made based on a preset light signal threshold to optimize performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple emitting assemblies and receiving assemblies are used to expand field of view, then detection range is improved, but device complexity and adjustment difficulty increase
Solution Approach 1:
The system divides the optical path into multiple independent transceiver components, each with its own emitting assembly, beam splitting assembly, and receiving assembly. This segmentation allows each component to be adjusted and calibrated independently, reducing the overall complexity of the adjustment process while maintaining expanded detection coverage through multiple components working together
Solution Approach 2:
Each transceiver component is designed as a universal module that can perform both emitting and receiving functions. The beam splitting assembly serves multiple purposes by directing light to different receiving assemblies, allowing a single component to fulfill multiple optical path functions and reducing the total number of separate assemblies needed
2Adaptability or versatility
If emitting assembly and receiving assembly are adjusted independently, then field of view expansion is achieved, but adjustment efficiency decreases
Solution Approach 1:
The beam splitting assembly merges the optical paths by receiving light from the emitting assembly and directing it to multiple receiving assemblies simultaneously. This merging approach allows synchronized adjustment of multiple receiving paths through a single beam splitting component, significantly improving adjustment efficiency compared to independent adjustment of each assembly
Solution Approach 2:
The beam splitting assembly acts as an intermediary component between the emitting assembly and multiple receiving assemblies. By adjusting the beam splitting assembly, one can control the light distribution to multiple receiving paths, serving as a mediator that simplifies the adjustment process and improves overall efficiency
3Device complexity
If coaxial optical path design is used, then aperture size is limited, but structural simplicity is maintained
Solution Approach 1:
The system transitions from a single-axis coaxial optical path to a multi-dimensional optical configuration using beam splitting. The beam splitting assembly directs light along multiple spatial dimensions to different receiving assemblies, effectively expanding the functional aperture size without proportionally increasing structural complexity
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
Simplifies the assembly process, reduces maintenance costs, and ensures reliable detection by allowing separate installation and adjustment of transceiver components, ensuring effective field of view and detection performance.
Implementation Method 1
The beam splitting assembly may be configured to deflect the reflected light signal
Implementation Method 2
a reflector assembly, configured to reflect the outgoing light signal to extend the detection region
Implementation Method 3
Lidar is a radar system that emits a laser beam to detect position, velocity, and other characteristic quantities of a target object
Data Source
AI summary
A lidar and a lidar adjustment method are provided. The lidar includes at least one transceiver component. The at least one transceiver component includes an emitting assembly, a beam splitting assembly, and a receiving assembly. The emitting assembly is configured to emit an outgoing light signal. The outgoing light signal is emitted, through the beam splitting assembly, towards a detection region and reflected by a target object to form a reflected light signal. The receiving assembly is configured to receive the reflected light signal after being deflected by the beam splitting assembly.