车载状态参数采集设备故障诊断及快速定位功能设计与实现

Design and Implementation of Fault Diagnosis and Fast Positioning Function of Vehicle State Parameter Collection Equipment

摘要: 本文针对车辆状态参数采集设备故障诊断及快速定位困难的问题，设计了一种基于故障树分析法结合硬件编码的故障监测及定位方法。首先通过唯一设备码结合槽位码实现设备功能模块物理定位，之后通过建立系统故障树、实时发送状态数据和故障分类报警的方式实现故障实时监控。最后以音视频采集模块异常为例，建立并应用故障树，将故障定位到最基本故障单元。实际使用表明，该方法能够快速定位故障模块位置和故障原因，帮助维修人员实现模块级或单元级故障的快速定位，对于提高修理单位的故障诊断能力具有非常大的帮助。

Abstract: Aiming at the problem of difficult diagnosis and rapid positioning of armored vehicle state pa-rameter acquisition equipment during the exercise, a fault monitoring and positioning method based on fault tree analysis and hardware coding is designed. Firstly, the physical positioning of the device function module is realized through the unique device code combined with the slot code, and then the real-time monitoring of the fault is realized by establishing a system fault tree, sending status data in real time and fault classification alarm. Finally, taking the exception of the audio and video acquisition module as an example, a fault tree is established and applied to locate the fault to the most basic fault unit. Practical use shows that this method can quickly locate the location of the faulty module and the cause of the fault, help the maintenance personnel to quickly locate the fault at the module or unit level, and have a great help in improving the fault diagnosis capability of the unit repairing unit.