【摘要】 提出了一种矿井气体检测及其基于低压电力线载波通信(PLCC)技术的远距离数据传输方案。该方案中,LPC2132为主控芯片,对井下CO、CO2、CH4等气体采用红外检测法采集气体体积分数,并对数据进行适当处理后,通过电力线载波芯片ST7538调制到电力线上并传至地面控制中心。给出了PLCC系统的硬件设计电路图和软件设计流程图,并通过Matlab进行了仿真。仿真结果和试验结果表明,该系统具有高可靠性,适合井下数据传输。更多还原

【Abstract】 This paper proposed a program about mine gas detection and remote data transmission based on low voltage power line carrier communication(PLCC) technology.The main chip of this program is LPC2132.After collecting the underground gas volume fraction of CO,CO2,CH4 etc by infrared detection and proper data processing,the result will be transmitted on power line through ST7538 power line carrier chip and then transmitted to the ground control center.The hardware circuit diagram and software flow chart of PLC system was provided and simulated by Matlab.The results show that the system has high reliability and is applicable for underground data transmission.更多还原