基于LoRa技术的装配式高层建筑电气火灾自动报警方法

Automatic Fire Alarm Method of Prefabricated High-rise Building Based on LoRa Technology

自动报警是智慧建筑体系中必不可少的一部分,由于现行方法在装配式高层建筑电气火灾自动报警中应用效果不佳,不仅误报率较高,而且自动响应时间较长,针对现行方法存在的不足和缺陷,本文提出基于LoRa技术的装配式高层建筑电气火灾自动报警方法。在高层建筑中部署烟雾传感器与温度传感器采集建筑电气火灾信号,利用LoRa技术对信号通信扩频调制,实现对电气信号通信传输,通过对电气火灾信号综合分析,监测识别电气火灾风险,并对监测结果作出报警响应,以此实现基于LoRa技术的装配式高层建筑电气火灾自动报警。经实验证明,本文方法误报率在1%以内,自动报警响应时间在1s以内,设计方法在智慧建筑监测领域具有良好的应用前景。

Automatic alarm is an essential part of the intelligent building system.Due to the poor application effect of the current method in the automatic electrical fire alarm of prefabricated high-rise buildings,not only the false alarm rate is high,but also the automatic response time is long.In view of the shortcomings and defects of the current method,this paper proposes an automatic electrical fire alarm method based on LoRa technology.Deploy smoke sensors and temperature sensors in high-rise buildings to collect building electrical fire signals,and use LoRa technology to spread spectrum modulation signal communication to realize communication transmission of electrical signals.Through comprehensive analysis of electrical fire signals,electrical firerisks can be monitored and identified,and alarm responses can be made to monitoring results.The automatic fire alarm of prefabricated high-rise building based on LoRa technology is realized.The experimental results show that the false alarm rate is less than 1%and the automatic alarm response time is less than Is.The design method has a good application prospect in thefield of intelligent building monitoring.