PIC单片机的远程定时断电复位系统设计

为了实现对无人值守的电子设备定时断电复位，提出了一种基于PIC24系列单片机的远程定时断电复位系统设计方案。给出了系统的硬件和软件设计流程，同时介绍了上位机软件通信指令格式的设计，实现了远程通过以太网自动设置不同模块的定时断电复位周期的功能。该系统经过恶劣环境下测试，能有效防止主控制器出现长时间死机的事故发生。

Remote Timing Power-off Reset System Based on PIC Microcontroller

In order to realize timing power-off reset of unattended field electronic devices,this paper proposed a design based on PIC24 se ries microcontroller with the characteristics of adjustable reset period,introduced the design process of hardware and software, and also introduced the design of communication instruction format. The system completed the function that set different devices＂ timing power-off reset period via Ethernet automaticly. The system can effectively prevent the master controller from a long time crash accident under se vere environment.