针对矿井带式输送机的火灾问题并分析其原因,设计了输送机的温度监测系统。本文 着重介绍输送带的常见故障形式及原因、CAN总线、测速和测温原理,以及保护系统、软硬件设计。本系统结构简单、成本低、实用性能好,经实验达到预期设计期望。 关键词: AT89S52;CAN总线;输送带;温度 Abstract :According to the fire problem of mine belt conveyor,and analysis it’s reason,develops the conveyor’s temperature monitoring system. Emphatically introduce the conveyor structure theory, CAN bus, measure speed and temperature theory, and protecting system,software and hardware design. The system structure is simple,cheap,and the practicality is good.This experiment achieves the anticipated design expectation. Key words: 89s52;CAN BUS; belt conveyor; temperature