实践证明大多数设备的故障率是时间的函数，典型的故障曲线形状呈两头高，中

Practice has proved that the failure rate of most equipment is a function of time. A typical failure curve has a high at both ends and a low in the middle. It has obvious stages. It can be divided into three stages: early failure, accidental failure, and loss failure. The curve is called It is the "bathtub curve". The fault occurrence of the computer interlocking system is very similar to the trend of the bathtub curve. This paper selects the dual-computer hot-standby computer interlocking system and the two-by-two-out-two computer interlocking system as the research objects, and analyzes their respective service status trends and studies The reasons affecting the trend of computer interlocking service status and corresponding suggestions are put forward. The research on the trend of the computer interlocking service status is helpful to analyze the influencing factors according to the operation stage, make corresponding maintenance decisions on the equipment components, and ensure the efficient operation of railway electrical equipment.

Practice has proved that the failure rate of most equipment is a function of time, the typical fault curve shape is high at both ends, low in the middle, has obvious stage, can be divided into early failure, accidental failure, loss failure three stages, the curve is called "bath curve". The failure of computer interlocking system is very similar to the trend of bath tub curve, this paper selects the two-machine hot-standby computer interlocking system and the two-by-two computer interlocking system as the research object, respectively, analyzes the service status trend, studies the reasons affecting the computer interlocking service status trend and puts forward the corresponding suggestions. The study of the trend of computer interlocking service status is beneficial to analyze the factors affecting the equipment components according to the operation stage, make corresponding maintenance decisions on the equipment components, and ensure the efficient operation of railway electrical equipment.

Practice has proved that the failure rate of most equipment is a function of time. The typical fault curve shape is high at both ends and low in the middle, which has obvious periodicity. It can be divided into three stages: early fault, accidental fault and loss fault. The curve is called "bathtub curve". The fault situation of the computer interlocking system is very similar to the bathtub curve trend. This paper selects the two computer hot standby computer interlocking system and the double two out of two computer interlocking system as the research objects, analyzes their respective service state trend, studies the reasons affecting the service state trend of the computer interlocking system, and puts forward corresponding suggestions. The research on the service status trend of computer interlocking is helpful to analyze the influencing factors according to the operation stage, make corresponding maintenance decisions for equipment components, and ensure the efficient operation of railway electrical equipment.<br>