Image-Guided Digital Plugboard Testing for Precise Fault Location
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Solution Overview
Problem
Manual testing of digital plugboards in electronic devices is labor-intensive, time-consuming, and inefficient, especially for long-life radars with multiple types, requiring extensive technical expertise and labor, and existing automated systems only compare signal amplitudes and locate approximate faults without processing signal types.
Innovation Solution
A universal automatic test system based on image processing, comprising a digital plugboard test platform, image acquisition and processing module, and control and processing module, which acquires images, identifies plugboard types, generates test signals, collects output signals, and determines fault states, providing maintenance plans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual testing is used for digital plugboards, then technicists can perform functional performance test and troubleshooting, but the testing process is labor-consuming, time-consuming, and requires extensive technical expertise
Solution Approach 1:
The patent replaces manual mechanical testing operations with an automated testing system that uses image processing technology. The system automatically captures images of the digital plugboard, processes them to identify component locations and types, and performs testing without manual intervention, thereby substituting human labor with automated mechanical and computational systems.
Solution Approach 2:
The testing system performs self-identification of the digital plugboard type through image processing. The system automatically captures images, extracts feature information, identifies the plugboard model, and selects appropriate testing parameters without requiring external technical expertise, enabling the system to serve itself in the identification and testing process.
2Reliability
If one person is responsible for testing one or several certain digital circuits, then thorough understanding of specific circuit is required, but the labor occupation increases and burden on the company becomes heavier
Solution Approach 1:
The patent creates a universal testing system that can handle multiple types of digital plugboards through a single unified platform. The system uses image processing to automatically identify different plugboard types and adaptively selects testing parameters, enabling one system to perform the work of multiple specialized systems, thereby reducing overall system complexity and labor requirements.
3Extent of automation
If existing automated test systems compare signal amplitude only, then testing is automated, but the system cannot process signal types and can only locate approximate fault locations
Solution Approach 1:
The patent performs preliminary identification of the digital plugboard type and component layout through image processing before the actual testing begins. By pre-processing the visual information to extract feature data and identify component locations, the system prepares accurate reference information that enables precise fault location during the subsequent testing phase, rather than relying on approximate localization.
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
The system efficiently identifies digital plugboard types, locates fault points, and assists maintenance by automating the testing process, reducing labor demands and improving efficiency compared to manual methods.
Implementation Method 1
an image acquisition and processing module configured to acquire an image of the digital plugboard and extract a layout feature of a chip and component of the digital plugboard
Data Source
AI summary
A universal automatic test system for a digital plugboard based on imagine processing, includes a digital plugboard test platform, an image acquisition and processing module, a test instrument module and a control and processing module. The universal automatic test system can determine a type of the digital plugboard and a point to be test based on the image of the digital plugboard, and call a corresponding automatic test program to complete the test of each point. A type of the output signal can be obtained through the universal automatic test system. By moving the detection probe, the any position of the digital plugboard can be test, and a fault portion of the digital plugboard can be obtained according to the test result.