某导弹发控仪模拟器计时电路的设计与实现

Design and Implementing of Certain Missile Fire Control Instrument Simulator Timing Circuit

针对某导弹发控仪模拟器实时控制电路集成度低，难以提高性能的问题，提出了基于AT89C52单片机实时系统的设计方法；分析了导弹发控仪模拟器计时电路的功能和原理，介绍了AT89C52单片机的性能特点，给出了具体的硬件电路和软件设计流程图，分析了设计中的难点；该设计充分利用AT89C52的内部资源，硬件电路实行最少配置，结构简单，能够实时监测发控仪模拟器各触发信号，产生实时控制信号，形成实时控制母线，完成对发控仪模拟器各工作状态的实时控制；该设备性能良好，集成度高，可靠性高，为同类产品的研制提供了一个典范。

Aiming at the problem that the real-time control circuit of certain missile fire control instrument simulator is in low level integrated, and the function is not easy to be improved, this paper puts forward a design method based on AT89C52 single chip machine real- time system, analyses the function and principle of missile fire control instrument simulator timing circuit, introduces the function characteristic of AT89C52 single chip machine, gives out concrete hardware circuit and software design flow charts, analyses the difficult point in the design. The hardware circuit is carried out at least configuration exploiting the internal resources of AT89C52, its structure is simple, this circuit can monitor each trigger signal at real time, generates the real-time control signal, form the real-time control bus, accomplish the real-time control to each active status of fire control instrument simulator. This equipment has good performance, high integrated degree and high reliability; it also provides a model to design and manufacture the same kind of equipment.