Movable Spray Jig for Autonomous Vehicle Sensor Blockage Testing
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Solution Overview
Problem
Existing blockage performance evaluation devices for autonomous vehicles are limited in their ability to test various types of environment recognition sensors, cannot adjust fluid spray conditions, lack data recording capabilities, and are constrained by fixed locations, leading to increased costs and reduced reliability of evaluation results.
Innovation Solution
A modular blockage performance evaluation device that allows independent movement and rotation of jig, spray, and collection units, enabling flexible testing of different sensors, adjustable fluid conditions, and data recording, thereby enhancing test efficiency and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the environment recognition sensor is fixed to the blockage performance evaluation device, then the sensor cannot be replaced, but this limits the ability to evaluate various types of sensors
Solution Approach 1:
The evaluation device is divided into independent modular units: the jig unit for mounting sensors, the spray unit for applying blockages, and the collection unit for data gathering. Each unit can be independently configured or replaced, enabling versatile sensor evaluation without increasing overall system complexity.
Solution Approach 2:
The jig unit is designed with universal mounting capabilities that can accommodate different types of environment recognition sensors. The spray unit can apply various blockage materials (water, oil, dust), making the device capable of evaluating multiple sensor types under diverse contamination conditions.
2Adaptability or versatility
If the blockage performance evaluation device uses fixed positions for jig unit and spray unit, then the structure is simple, but various test conditions cannot be reproduced
Solution Approach 1:
The jig unit and spray unit are equipped with movable and rotatable mechanisms that allow dynamic adjustment of their positions and orientations. This enables the reproduction of various test conditions (different angles, distances, and configurations) while maintaining a relatively simple base structure through standardized movement paths.
3Adaptability or versatility
If the blockage performance evaluation device cannot move, then the structure is stable, but the evaluation location is restricted and costs increase
Solution Approach 1:
The device is segmented into a movable housing unit containing the jig and spray units, separate from the stationary base unit. This allows the evaluation components to be transported to different locations while maintaining structural stability during testing, balancing mobility with operational stability.
4Adaptability or versatility
If the spray unit cannot control fluid spray, then the structure is simple, but various fluid spray conditions cannot be tested
Solution Approach 1:
The spray unit incorporates pneumatic or hydraulic control mechanisms that enable precise regulation of fluid spray parameters (pressure, flow rate, spray pattern). This allows testing under various fluid conditions while using well-established control technologies that do not significantly increase system complexity.
5Reliability
If the blockage performance evaluation device lacks data recording function, then the structure is simple, but evaluation result reliability cannot be ensured
Solution Approach 1:
The collection unit automatically records evaluation data and test process information during sensor testing. This self-recording capability ensures reliable documentation of results without requiring additional manual recording equipment or procedures, minimizing the increase in device complexity.
Data Source
AI summary
The present disclosure relates to a blockage performance evaluation device, which performs a performance assurance test on an environment recognition sensor of an autonomous vehicle, the blockage performance evaluation device including a housing unit, a base unit installed in the housing unit, a jig unit installed on the base unit and configured such that an environment recognition sensor, which is to be subjected to the performance assurance test, is mounted on the jig unit, a spray unit installed on the base unit, disposed adjacent to the jig unit, and configured to spray a fluid to the environment recognition sensor mounted on the jig unit, a supply unit configured to supply the fluid to the spray unit, and a collection unit installed in the housing unit and configured to collect evaluation data and record a performance assurance test evaluation process of the environment recognition sensor mounted on the jig unit, in which the blockage performance evaluation device performs blockage performance evaluation on the environment recognition sensor by moving and rotating the jig unit, the spray unit, and the collection unit independently.