Design and implementation of automatic fault detection system for circuits
High-quality transmission lines can ensure signal integrity and clarity.However,the traditional fault detection devices often struggle to meet the requirements for timeliness and accuracy when detecting the faults in signal transmission lines.This paper presents the design of an automatic detection system for identifying the locations and types of faulty components in the equivalent network of signal transmission lines.The system uses the STM32F103RCT6 microcontroller as the main controller,with the XD4069 inverter as the core of the signal forwarding processing circuit.The signals enter the transmission line equivalent network through the multiplexing circuit of the 74HC4051D chip.Before the signal sampling,a filtering circuit centered around the GS8552 chip is employed,and the sampling is performed using the built-in ADC module of the microcontroller.The fault identification results are displayed on a TFT-LCD module.This system features a simple circuit structure and is easy to operate,can identify the faulty components and types quickly and accurately,which achieves the automatic fault detection of transmission line.
signal transmission lineequivalent networkSTM32impedancefault detection
万方数据
维普
