CAJ | 학술논문

现代机电设备中包含了大量的机电控制电路及元件，对其故障的准确判断非常困难。利用设计了一种电路控制板在线故障检测系统，以实现对电子元器件的在线无损伤检测。检测系统主要由上位机和下位机构成，上位机负责用户交互和信息管理等功能；下位机是检测系统的核心组成，包括微控制器、CPLD 控制电路、信号采集板与测试接口电路等，完成电控元器件和电路板的故障信号采集等功能。采用嵌入式技术和 VHDL 语言进行了硬件设计与软件开发，通过改进测试向量算法提高了测试的速率和故障覆盖率，实现了系统良好的人机交互和电路故障测试分析功能。
현대궤전설비중포함료대량적궤전공제전로급원건，대기고장적준학판단비상곤난。이용설계료일충전로공제판재선고장검측계통，이실현대전자원기건적재선무손상검측。검측계통주요유상위궤화하위궤구성，상위궤부책용호교호화신식관리등공능；하위궤시검측계통적핵심조성，포괄미공제기、CPLD 공제전로、신호채집판여측시접구전로등，완성전공원기건화전로판적고장신호채집등공능。채용감입식기술화 VHDL 어언진행료경건설계여연건개발，통과개진측시향량산법제고료측시적속솔화고장복개솔，실현료계통량호적인궤교호화전로고장측시분석공능。
There are lots of electronic control components and cards in modern mechatronic de-vices.It is much difficult to detect and diagnose various faults of the machine.An online node-structive fault detection system is developed so as to fulfill the fault detection and maintenance.The fault detection system consists of master and slave chassis together with communication unit. The embedded technique and VHDL language are used in the development of its firmware and software platform.The improved testing vector algorithm is proposed to upgrade the detection speed and fault coverage rate.The results present better human machine interface and fault detection analysis func-tion.The application shows that the system is general purposed and more reliable,and have good promotion application prospect.