基于STM32的分布式烟温探测器设计

Design of Distributed Smoke and Heat Detector Based on STM32

以STM32控制器为任务控制与数据处理核心,根据烟雾粒子对光线的吸收和散射原理,通过光敏元件检测烟雾浓度,通过DS18B20检测温度,设计了烟温探测器。该烟温探测器具有CAN总线接口,作为智能节点分布于远程测控系统中。还介绍了CAN总线收发电路和RS232收发电路。经过测试:该烟温探测器工作可靠、灵敏度高,具有实用价值。

Taking STM32 controller as the task control and data processing center and basing on the principle of absorbing smoke particles and scattering rays,a distributed smoke and heat detector was designed to detect smoke concentration and temperature through the light sensor and DS18B20.As an intelligent node,this de-tector with CAN bus interface can be located in the remote monitoring and control system.Both CAN bus transceiver circuit and RS232 transceiver circuit was introduced.The testing results show that this detector works reliably along with high sensitivity and practical value.