基于CPLD的自动电梯逻辑控制

System of elevator auto-control based on CPLD

对于自动电梯控制电路 ,为了简化电路设计 ,增加电路设计的灵活性 ,采用基于CPLD器件的模块化设计方法 ,即从 4层货梯控制要求出发 ,首先进行顶层原理图设计 ,然后逐个设计下层模块 ,组合、编译、调试生成熔丝图文件 ,利用菊花链下载 .应用结果表明 ,采用该方法缩短了系统的开发时间 ,减少了系统的调试周期 ,降低了成本 ,对控制功能可方便。

There are many ways of designing a circuit of elevator auto control. To simplify the design and make it more flexible, the way of modularization based on CPLD is presented. The control system of four floor elevator is analyzed, then top graphic an every lower modules are designed. The JEDEC file is generated after compiling and debugging, and is loaded on the board by daily chain. Using the method, the design time is shortened greatly, the cost is reduced and it is easy to be modified.