应用数据融合实现电子电路的故障诊断

在电路故障诊断中,可通过直流分析、交流分析和灵敏度分析等方法,对电路的故障进行诊断.但由于不同的诊断方法对不同的故障敏感度不同,使得每种方法都带有局限性.为此,本文提出了采用数据融合进行电路故障诊断的新方法,介绍了D-S证据理论算法在电路故障诊断中的应用,给出了具体算法和仿真实例.理论分析和仿真结果表明,将数据融合技术用于电路的故障诊断是可行的.不同的诊断方法提供的信息经多次融合、反复抽取有用信息后,大大降低了判断的盲目性,提高了电路故障诊断的准确性.

The circuit fault diagnosis using data fusion

Circuit faults can be diagnosed through DC analysis, AC analysis, sensitivity analysis and so on. Each has its own advantages and disadvantages. Sometimes, the diagnosis result is not reliable when only one method is used. For this reason, a new idea using data fusion technology in the circuit fault diagnosis is put forward in this paper. The application of the D-S algorithm to the circuit fault diagnosis is presented. The processes and results of data fusion simulation are described. According to the theor...