摘要
针对煤矿安全生产中对一氧化碳气体浓度的检测与报警,提出了一种矿用电化学一氧化碳传感器的设计方案。该方案以STM32F103C8单片机为处理核心,利用City Technology生产的4cm一氧化碳敏感元件、微弱信号放大器与DS18B20温度传感器、nRF24L01等器件,实现了矿用一氧化碳传感器的软硬件设计。采集的一氧化碳浓度数据经滤波、校标后由RS485输出给上位机,用于显示与报警,传感器参数可以通过RS485通讯或者无线通讯设定。实际测试表明,该一氧化碳传感器精度高、稳定性好、参数设定方便,适宜于矿井下需要监测一氧化碳的场所使用。
For the detection and alarm of the concentration of carbon monoxide gas in coal mine, we design a mine electrochemical carbon monoxide sensor. The design is using STM32F103C8 microcontroller as processing core, including 4cm-monoxide sensor produced by City Technology, weak signal amplifier and DS18B20 temperature sensor, nRF24L01 and other devices, to achieve a hardware and software design of the carbon monoxide sensor. The collected data of carbon monoxide concentration is output to the host computer through RS485 for display and alarm after filtering and revising. The sensor parameters can be set via RS485 communication or wireless communication. Actual tests show that the carbon monoxide sensor has high precision, good stability, and is also convenient to set parameters. It is suitable for coal mine where needs to monitor the carbon monoxide.
出处
《信息技术与信息化》
2013年第5期145-148,共4页
Information Technology and Informatization
