基于STM32的多点温度检测系统设计  

Design of Multi-point Temperature Detection System Based on STM32

作　　者：徐宏宇[1] 沈煌飞 

机构地区：[1]沈阳航空航天大学电子信息学院,辽宁沈阳110136

出　　处：《电子科技》2016年第5期158-161,共4页Electronic Science and Technology

摘　　要：针对航天器舱体温度场的测试方法问题,设计一种基于STM32微控制器为核心的多点温度检测系统,温度传感器K型热电偶对温度进行采集,利用ADG509模拟开关的差分多输入一输出通道,可解决多点温度和主控CPU的系统协调测试问题,给出了系统各部分的硬件结构图与软件框图。该系统可实现对航天器各模块的实时温度检测,并对各节点的数据进行传输。为保证系统的稳定运行,通过恒温烤箱进行实验完成了温度测量任务,温度误差值±0.5℃,试验结果验证了该系统的可行性和稳定性。This paper presents a multi-point temperature and monitoring system based on microcomputer STM32 for the test of spacecraft cabin temperature. The K-type thermocouple temperature sensor is responsible for temperature acquisition. By using ADG509 analog switch differential MIMO,the test method solves the problems of multipoint temperature and master CPU system coordination test. The system hardware structure and software block diagram of each part are given. The system realizes real-time temperature detection of spacecraft module and data transmission of each node. Temperature measurements in a constant temperature oven show that the temperature error is± 0. 5 ℃,indicating good system stability.

关 键 词：STM32 AD7710 热电偶 温度检测 

分 类 号：TP216.1[自动化与计算机技术—检测技术与自动化装置]