Camera-Based Vehicle Testing for Meter Panel State Recognition
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Solution Overview
Problem
Existing vehicle testing methods require significant user effort and time to verify the states of test bodies, especially in cases where access to vehicle ECUs is restricted, and there are challenges in accurately determining the power supply state during automatic driving tests.
Innovation Solution
A vehicle testing system equipped with a camera that acquires images of the test body's state display portion, a control device that controls the test based on these images, and a recognition portion that stores and describes the results of the camera, and a recognition device that recognizes states of the test body, and a recognition device that recognizes the states of the test body, allowing for automated control of the test based on pre-stored image data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a human user directly verifies the states of the test body by confirming display such as meter panel, then the user can obtain information about the states, but the user burden and time required for vehicle test increases
Solution Approach 1:
The patent uses a camera to capture images of the meter panel display, creating a visual copy of the state information. This image-based approach allows automated recognition of vehicle states without requiring manual verification, thereby reducing user burden and test time while maintaining measurement accuracy
Solution Approach 2:
The patent replaces the manual mechanical verification process with an automated image recognition system. The camera and recognition device substitute for human visual inspection, enabling automatic state detection and reducing the time required for vehicle testing
2Loss of information
If access is attempted to ECU installed in the test body, then data about states can be acquired, but complicated operations are required and access is restricted to automobile manufacturer
Solution Approach 1:
The patent introduces a camera as an intermediary device to obtain state information indirectly through visual display rather than direct ECU access. This bypasses the restricted access and complicated operations required for ECU communication, allowing third parties to easily acquire state data through image capture and recognition
3Ease of operation
If images of other portions are acquired instead of state display portion, then user effort is reduced, but state recognition detail and accuracy decreases
Solution Approach 1:
The patent applies local quality by specifically targeting the state display portion (meter panel) for image acquisition rather than generic areas. This focused approach ensures that the captured images contain the necessary state information for accurate recognition, maintaining measurement precision while still reducing user effort through automation
Data Source
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AI summary
The present invention makes it possible to reduce the burden on a user in vehicle testing while maintaining precision of vehicle testing, and is a vehicle testing system for testing, on a test bench, a vehicle or a test piece that is a portion of a vehicle, the vehicle testing system being provided with a camera for capturing an image of a portion of a test piece, and a control device for controlling vehicle testing on the basis of the image captured by the camera.