CAJ | 학술논문

针对某武器系统故障诊断装置缺少电缆故障诊断功能的问题,通过对其内部电路板的改制实现电缆故障诊断;采用对电缆的某一芯加高电平信号,测量其它各芯是否有高电平信号的方法,来判断电缆是否存在短路或断路故障,并给出了具体的软件实现流程;使用多路输出选择器件,解决I/O 口数量不足的问题;使用双向开关,实现与原诊断装置共用面板接口的问题;改进后的诊断装置能够快速、准确地诊断出不超过41芯的多种型号电缆的短路和断路故障,缩减了开发时间和研制费用.
침대모무기계통고장진단장치결소전람고장진단공능적문제,통과대기내부전로판적개제실현전람고장진단;채용대전람적모일심가고전평신호,측량기타각심시부유고전평신호적방법,래판단전람시부존재단로혹단로고장,병급출료구체적연건실현류정;사용다로수출선택기건,해결I/O 구수량불족적문제;사용쌍향개관,실현여원진단장치공용면판접구적문제;개진후적진단장치능구쾌속、준학지진단출불초과41심적다충형호전람적단로화단로고장,축감료개발시간화연제비용.
To cope with the problems that the fault diagnosis device of the weapon systems can not detect cables faults, we improve the PCB that lied in the fault diagnosis device to realize fault diagnosis of cables. To judge whether the cable is fault, we put on one core with logical high voltage and measure whether the other cores are logical high voltage. We also give the testing flow diagram of the software. Using the Multiplexer to solve the absence of I/O and using Bilateral Switch to share the panel interface with the fault diagnosis device. The improved fault diagnosis device can detect short circuit and open circuit faults of cables which are no more than 41 cores, quickly and exactly.Time and cost of the design is reduced.