有毒气体泄漏无线报警及控制系统的设计

Design of Wireless Alarming and Controlling for Poisonous Gas Leaking

应用传感器和无线电技术,提出了一种有毒气体泄漏无线报警及控制系统的设计方案。该系统采用半导体气敏传感器QM-N10来检测有毒气体,通过检测电路把有毒气体浓度的变化转换为相应的电压信号,一旦超过设定的有毒气体的安全浓度值,系统启动发射电路工作。接收处理电路接收和处理发射电路发送的无线编码信号,同时输出控制信号启动扬声器报警,提醒工作人员采取安全防护措施。

A feasible design of wireless alarming and controlling for poisonous gas leaking based on sensor and radio tech- nology is proposed in this paper. This system uses detecting circuit to convert the poisonous gas concentration signals detect- ed by QM - NIO into corresponding voltage signals, once the set safe concentration value is passed, transmission circuit working will be started. Receiving and processing circuit receives and processes the wireless encoding signals sending from transmission circuit, meanwhile the outputs control signal starts the speaker alarming in order to warn workers to adopt safety and preventive measures.