基于LoRa物联的远程智能起爆系统研发

Study and Development on Wireless Remote Intelligent Initiation System Based on LoRa Internet of Things

智能起爆系统是有效提升爆破安全管控水平的重要手段之一,现阶段,起爆系统仍存在因起爆能量不足或网路连接失误等难题。研发了基于LoRa物联的无线远程智能起爆系统,对比分析了LoRa技术与主流无线通信技术的区别,简述了智能起爆系统的安全控制及供电设计原理。LoRa通信技术与HM-TRLR-S433 MHz无线远程智能爆破系统具有通信距离远、抗干扰强、体积小等优点;GPS模块选用Air530Z模块,数码电子雷管的接收模块为Zigbee无线透传模块,采用MBus驱动电路将起爆信号发送至数码电子雷管,进而实现无线起爆。同时开展了不同距离、地形的无线远程智能爆破系统抗干扰及系统可靠性试验。结果表明:200~1000 m的水平距离区间及50~100 m的高差区间内,系统均运行稳定,在电磁干扰、杂散电流干扰下,模块正常率超过90%,振动干扰满足设计要求,系统可靠性高达100%。实现了各个数码电子雷管独立运行,爆破区域智能管控,提高了爆破网路连接的效率与安全性,可以为智能爆破建设、科学管理与决策提供技术支持。

Intelligent initiation system is one of the important means to effectively improve blasting safety control level.At present,there are still some problems,such as insufficient initiation energy or wrong network connection.A wireless remote intelligent blasting system based on LoRa IOT is developed,comparing the differences between LoRa technology and mainstream wireless communication technology,briefly describing the intelligent detonation.LoRa communication technology and HM-TRLR-S433MHz wireless remote intelligent blasting system has the advantages of long communication distance,strong anti-interference,small size,etc.;GPS module selected Air530Z module,digital electronic detonator receiving module for Zigbee wireless transmission module,using MBus driver circuit to send the detonation signal to the digital electronic detonator,which could realize wireless initiation.The safety control and power supply design principle of the system is implemented to test the anti-interference and system reliability of the wireless remote intelligent blasting system for different distances and terrains.The results show that the system operates stably in the horizontal distance range from 200 m to 1000 m and in the height difference range from 50 m to 100 m,and the module normal rate exceeds 90%under electromagnetic interference and stray current interference,and the vibration interference meets the design requirements,so the system reliability is up to 100%.The research results achieve independent operation of each digital electronic detonator,intelligent control of blasting area,improve the efficiency and safety of blasting network connection,provide technical support for intelligent blasting construction,scientific management and decision-making.