Electronic Product Testing via Serial Slave Communication

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Solution Overview

Problem

The existing methods for Failure Analysis Correction Actions (FACA) in electronic product testing require non-destructive analysis, which involves transporting products for testing, resulting in time and manpower costs due to the need for physical transportation and manual handling.

Innovation Solution

A method utilizing an electronic device with a test program that communicates with slave devices via a network to establish serial port connections, allowing for real-time data transmission and analysis of electronic products without physical transportation, using STM32 interfaces for communication and data acquisition from registers, and laser sensors for functional testing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If non-destructive analysis requires physical transportation of products to production line, then testing can be performed, but time and manpower costs increase

Engineering Contradiction:

Improvetesting capabilityVSAvoidtransportation time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent introduces an electronic device with slave devices as an intermediary testing system. The slave devices establish serial port connections to communicate with electronic products, allowing testing to be performed at the current location without physical transportation to production line, thus resolving the contradiction between maintaining testing capability and reducing transportation time

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical transportation system with an electronic communication system. Instead of physically moving products to production line, the system uses electronic devices with serial port connections and communication protocols to perform testing electronically in place, eliminating transportation time while maintaining testing functionality

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If non-destructive analysis requires physical transportation of products, then testing can be performed, but manpower cost increases

Engineering Contradiction:

Improvetesting capabilityVSAvoidmanpower cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent implements a self-service testing system where electronic devices automatically establish serial port connections and perform testing operations without requiring manual handling or transportation of products. The system autonomously communicates with electronic products through slave devices, eliminating the need for manpower involved in physical transportation while maintaining testing capability

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical handling operations with automated electronic communication systems. The electronic device with slave devices automatically establishes serial port connections and performs testing, substituting the need for manpower in physical transportation and manual handling, thus reducing labor costs while preserving testing functionality

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Loss of time

If real-time data transmission is implemented without physical transportation, then time cost reduces, but communication system complexity increases

Engineering Contradiction:

Improvetesting timeVSAvoidcommunication system complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The patent segments the communication system into a master electronic device and multiple slave devices, each with specific functions. The slave devices handle serial port connections and data transmission individually, allowing real-time communication without requiring complex centralized infrastructure. This segmentation enables time-efficient testing while distributing system complexity across modular components

Inventive Principle:

Principle #1Segmentation

4Productivity

If automated testing system is implemented, then productivity improves, but initial setup complexity increases

Engineering Contradiction:

Improvetesting efficiencyVSAvoidsystem setup complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent designs the electronic device with universal multi-functional slave devices that can establish serial port connections with various electronic products through standardized communication protocols. This universality allows a single system configuration to handle multiple testing scenarios, improving productivity across different product types while avoiding the need for complex product-specific testing setups

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11892923B2Testing electronic products for determining abnormality

Publication Date: 2024.02.06 TRIPLE WIN TECH (SHENZHEN) CO LTD

AI summary

A method for testing electronic products implemented in an electronic device includes selecting a serial port connected with a slave device in serial communication with a product under test. An activation instruction is transmitted to the slave device, and the electronic product is started through the slave device. Data stored in at least one register of the electronic product and a state of the electronic product is obtained and a capacitance of at least one capacitor in the electronic product is measured. When the electronic product is found to be in an abnormal state, determining a cause of abnormality according to data of the electronic product and the capacitance of the at least one capacitor.