以AT89C51单片机系统为核心，能对多点的温度进行实时巡检。各检测单元（从机）能独立完成各自功能，同时能够根据主控机的指令对温度进行定时采集，测量结果不仅能在本地显示，而且可以利用单片机串行口，通过RS-232总线及通信协议将采集的数据传送到主控机，进行进一步的存档、处理。主控机负责控制指令的发送，控制各个从机进行温度采集，收集测量数据，并对测量结果（包括历史数据）进行整理、显示和存储。主控机与各从机之间能够相互联系、相互协调，从而达到系统整体统一、和谐的效果。(Taking AT89C51 single chip microcomputer system as the core, the real-time inspection of multi-point temperature can be carried out. The detection unit (slave) can independently function at the same time, according to the master machine instructions are collected on the temperature measurement results, not only in the local, but also can use the microcontroller serial port, through the RS-232 bus communication protocol and the data collected will be transmitted to the host computer, and further processing of the archive. The main control machine is responsible for the transmission of control commands, control the temperature acquisition of each slave, collect measurement data, and collate, display and store the measurement results (including historical data). The main controller and the slave machine can be connected and coordinated with each other, so as to achieve the overall unity and harmony of the system.)