LiDAR Test System Using Optical Redirection for Compact Field of View Evaluation
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Solution Overview
Problem
Current LiDAR test systems require large spaces and expensive hardware to evaluate the complete field of view of a LiDAR device, making them inefficient and costly for testing and validation.
Innovation Solution
A LiDAR test system comprising an optical module that redirects and manipulates LiDAR signals from a predetermined portion of the field of view to a target simulator module, allowing for sequential evaluation without moving the LiDAR device or simulator, using less expensive hardware with reduced resolution and processing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the complete field of view is evaluated simultaneously using traditional test systems, then comprehensive testing is achieved, but large space and expensive high-resolution hardware are required
Solution Approach 1:
The patent divides the complete field of view into multiple predetermined portions that are evaluated sequentially rather than simultaneously. The optical module redirects different portions of the field of view to the target simulator module at different time points, enabling comprehensive testing with reduced spatial requirements.
Solution Approach 2:
The optical module dynamically redirects LiDAR signals from different predetermined portions of the field of view to the target simulator module. This dynamic redirection allows the system to evaluate the complete field of view over time while using a compact, stationary configuration.
2Measurement precision
If the complete field of view is evaluated simultaneously, then comprehensive testing is achieved, but expensive high-resolution hardware and long processing time are required
Solution Approach 1:
By segmenting the field of view evaluation into multiple sequential measurements of predetermined portions, the system reduces the processing burden on hardware components. Each portion can be processed independently and quickly, and the results are combined to form the complete field of view evaluation, reducing total testing time.
Solution Approach 2:
The system evaluates only a predetermined portion of the field of view at any given time rather than the complete field of view simultaneously. This partial action approach allows the use of less expensive hardware with reduced resolution and processing capabilities while still achieving comprehensive coverage through sequential evaluation.
3Measurement precision
If high-resolution hardware is used to evaluate the complete field of view, then measurement precision is improved, but device cost increases
Solution Approach 1:
The system uses less expensive hardware components with reduced resolution that are sufficient for evaluating only a predetermined portion of the field of view at a time. By evaluating multiple portions sequentially, the system achieves complete field of view coverage without requiring expensive high-resolution hardware capable of processing the entire field simultaneously.
Solution Approach 2:
The evaluation task is segmented into multiple smaller sub-tasks, each handling a predetermined portion of the field of view. This segmentation allows the use of lower-cost hardware for each sub-task while the aggregate results provide comprehensive field of view evaluation capability.
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
Significantly reduces space and time requirements for testing, enabling cost-efficient evaluation of the complete field of view with less expensive hardware and improved testing efficiency.
Implementation Method 1
The optical module is configured to redirect a LiDAR signal emitted by the LiDAR device under test from a predetermined portion of the field of view to the target simulator module
Data Source
AI summary
A LiDAR test system for testing a LiDAR device under test is described. The LiDAR test system includes an optical module and a target simulator. The LiDAR device under test has a predetermined field of view. The optical module is configured to redirect a LiDAR signal emitted by the LiDAR device under test from a predetermined portion of the field of view to the target simulator, wherein the predetermined portion is adaptable. The target simulator includes a receiver configured to receive the LiDAR signal redirected by the optical module. The target simulator includes a manipulation unit configured to manipulate the received LiDAR signal, thereby generating a manipulated LiDAR signal. The target simulator further includes an emitter configured to emit the manipulated LiDAR signal.