一种用于观瞄系统的指令分发与处理电路板设计  

A design of instruction distribution and processing board for viewing system

作　　者：顾小兴 车喜林 李逸飞 丰传方 李强 Gu Xiaoxing;Che Xilin;Li Yifei;Feng Chuanfang;Li Qiang(Zhejiang Huangdong Optic-electronic Instrument Co.,Ltd,Department of Scientific Research and Technology,Jiaxing Zhejiang,314011)

机构地区：[1]浙江华东光电仪器有限公司科研技术部,浙江嘉兴314011

出　　处：《电子测试》2022年第20期13-16,共4页Electronic Test

摘　　要：本文设计了一种用于观瞄系统的指令分发与处理电路板,使用STM32系列单片机作为处理核心,具有5路RS-422接口,可实现电路板与多个模块之间的通讯,通过DS18B20测量观瞄系统的机壳温度,并根据温度预设值控制继电器的开合,从而控制加热装置工作。在软件配置方面,加入了独立看门狗,当电路受到外界干扰而导致程序跑飞时,可重新进入系统,增加了系统的鲁棒性。This paper designs a command distribution and processing circuit board for the observation and aiming system,which uses STM32 series single chip microcomputer as the processing core and has five RS-422 interfaces,which can realize the communication between the circuit board and multiple modules.The shell temperature of the observation and aiming system is measured through DS18B20,and the opening and closing of the relay is controlled according to the preset temperature value,so as to control the operation of the heating device.In terms of software configuration,an independent watchdog is added,which can re-enter the system when the program flies due to external interference,which increases the robustness of the system.

关 键 词：STM32 RS-422 DS18B20 继电器 

分 类 号：TB472[一般工业技术—工业设计]