Automated Circuit Board Testing Device Using Machine Learning

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Solution Overview

Problem

Manual testing of circuit boards is time-consuming and inefficient, requiring a more automated and systematic approach to identify faulty regions and components.

Innovation Solution

A circuit board testing device equipped with a processor, memory, and display unit, featuring modules for login, configuration, testing, analysis, and display, utilizing a multimeter for voltage and resistance measurements, and employing machine-learning algorithms like K-means clustering and classification decision trees to identify faulty regions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual testing is used, then testing can be performed with simple equipment, but testing time is excessive and efficiency is low

Engineering Contradiction:

Improvetesting efficiencyVSAvoidtesting time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical testing operations with an automated computer-controlled system. The testing device uses a computer to automatically control measurement instruments, execute test procedures, and analyze results, eliminating the need for manual operation while significantly improving testing efficiency and reducing testing time.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The testing system performs self-testing through automated execution of test programs. The computer automatically controls the measurement instruments, collects data, analyzes results, and generates reports without requiring continuous human intervention, enabling the system to serve itself in the testing process.

Inventive Principle:

Principle #25Self-service

2Measurement precision

If automated testing with multiple modules is implemented, then testing accuracy and efficiency improve, but device complexity increases

Engineering Contradiction:

Improvefault detection accuracyVSAvoidsystem structure complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements a multi-functional testing system where a single computer controls multiple measurement instruments and performs various testing functions. The system can execute different test programs, analyze multiple types of data, and generate comprehensive reports, reducing the need for separate dedicated devices for each function while maintaining high measurement precision.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The computer acts as an intermediary that coordinates between the user and the complex measurement instruments. It provides a user-friendly interface, automatically manages the complexity of multiple instruments and test procedures, and presents simplified results to the user, thereby managing device complexity while maintaining measurement accuracy.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS10852345B2Circuit board testing device and method thereof

Publication Date: 2020.12.01 HONGFUJIN PRECISION ELECTRONICS ZHENGZHOU

AI summary

A circuit board testing device electrically coupled to a measurement gauge tests a circuit board. The circuit board testing device includes a processor configured to configure measurement parameters of the measurement gauge, configure measurement rules for testing the circuit board, confirm a circuit of the circuit board to be tested according to the record of test data, control the measurement gauge to test the circuit of the circuit board to be tested when the measurement gauge is electrically coupled to the circuit of the circuit board to be tested, receive measurement data returned by the measurement gauge, and analyze a faulty region of the circuit board according to the record of test data and the measurement data.