基于RS485总线的顶板离层传感器设计  

Design of roof separation sensor based on RS485 bus

作　　者：赵庆川 ZHAO Qingchuan(State Key Laboratory of Gas Disaster Monitoring and Emergency Technology;China Coal Technology Engineering Group Chongqing Research Institute, Chongqing 400039, China)

机构地区：[1]瓦斯灾害监控与应急技术国家重点实验室 [2]中煤科工集团重庆研究院有限公司,重庆400039

出　　处：《工业仪表与自动化装置》2020年第4期113-116,121,共5页Industrial Instrumentation & Automation

基　　金：天地科技创新创业资金专项重点项目(2019-TD-ZD007);重庆市2020年煤炭发展专项资金项目(采空区自燃前兆信息就近自动采集分析装置及方法);重庆市技术创新与应用发展专项面上项目(cstc2019jscx-msxm0375)。

摘　　要：针对传统顶板离层传感器存在功耗较大、抗干扰能力差、系统结构繁杂的问题,对低功耗角度位移传感原理及整机低功耗电路优化设计进行了研究,创新性地设计了一种基于RS485总线传输的低功耗顶板离层传感器,整机功耗下降50%。该文详细介绍了接口保护电路、开关电源电路、元件供电电路、元件信号处理电路、数码管显示电路、遥控电路、声光报警电路、通信电路的元器件选型依据及模块电路设计,以及传感器的软件程序流程。现场应用表明,该设计实现了1条总线带载16台顶板离层传感器的设计需求。Aiming at the problems of high power consumption,poor anti-interference ability and complex system of traditional roof separation sensor,a low power roof separation sensor based on RS485 bus transmission is designed creatively after the principle of low power angular displacement sensor and the optimal design of the low power circuit are studied,the power consumption of the sensor is reduced by 50%.The hardware circuit is presented in details,including the interface protection circuit,switch power supply circuit,component power supply circuit,component signal processing circuit,digital tube display circuit,remote control circuit,alarm circuit,communication circuit,and the selection basis of components and the software program flow are presented in details too.Field application shows that the design requirement of sixteen roof separation sensors in a bus is realized.

关 键 词：总线通信 顶板离层 低功耗 接口保护 遥控电路 

分 类 号：TD326[矿业工程—矿井建设]