基于电力线通信的矿井安全监控系统  

Mine safety monitoring system based on power line communication

作　　者：陈子枫 张国平[1] 李景 陈德华 Chen Zifeng;Zhang Guoping;Li Jing;Chen Dehua(College of Physical Science and Technology,Central China Normal University,Wuhan 430079,China)

机构地区：[1]华中师范大学物理科学与技术学院

出　　处：《电子测量技术》2019年第19期120-124,共5页Electronic Measurement Technology

摘　　要：设计了一套基于电力线通信的矿井安全监控系统。该系统中,采用STM32F103作为微控制器,结合7X-CO-1000一氧化碳传感器和7X-CH4-5%甲烷传感器对井下CO,CH4等有毒易燃易爆气体采集体积分数,各类指标通过电力线载波芯片ST7540调制到电力线上并传至地面,进行井下安全状态的实时监控,当指标超过安全阈值时,启动报警电路。给出了基于ST7540的电力载波收发节点的硬件和软件设计,通过Simulink进行了系统仿真,并进行了模拟实验,结果表明该系统具有较强的实时性和较高的稳定性。A mine safety monitoring system is designed based on power line communication. In this system, STM32 F103 is used as the microcontroller of the system, combined with 7X-CO-1000 carbon monoxide sensor and 7X-CH4-5% methane sensor to collect gas volume fraction of toxic, flammable and explosive gases in underground. Various indicators are modulated to the power line by power line carrier chip ST7540 and transmitted to the ground for real-time monitoring of underground safety status. When the indicators exceed the safety threshold, the system can monitor the underground safety status in real time. When the alarm circuit is activated. The hardware and software design of power carrier transceiver node based on ST7540 is given. The system is simulated by Simulink and the simulation test is carried out. The results show that the system has strong real-time performance and high stability.

关 键 词：矿井安全监控 电力载波通信 ST7540 嵌入式微控制器 SIMULINK仿真 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置] TN919.71[自动化与计算机技术—控制科学与工程]