基于LoRa的文物建筑无线火灾报警系统研究  

Research on wireless fire alarm system of cultural relics building based on LoRa

作　　者：韩倩倩 栾茹 岳云涛 霍铭 HAN Qian-qian;LUAN Ru;YUE Yun-tao;HUO Ming(College of Electricity and Information Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京建筑大学电气与信息工程学院

出　　处：《消防科学与技术》2020年第1期86-88,共3页Fire Science and Technology

基　　金：北京市科委计划项目“文物建筑电气火灾监控及防火技术研究与应用示范”(Z171100004417031);北京建筑大学研究生创新项目(PG2019070)

摘　　要：针对目前文物建筑火灾报警系统有线设计布线复杂、安装维护成本高等缺点,提出一种基于LoRa的文物建筑无线火灾报警系统。运用新型LoRa调制技术,采用433 MHz中心频点,结合文物建筑火灾特点,构建无线火灾报警系统。对报警器节点进行了低功耗设计,利用电磁场软件FEKO对天线匹配仿真和多点布控方式分析,可以有效降低系统功耗,延长通信距离。通过示范工程项目对火灾进行了试验研究,为文物建筑无线火灾报警系统的优化设计提供了技术支持。Aiming at the shortcomings of the complex design and wiring of the cultural relics fire alarm system and the high installation and maintenance cost,a wireless fire alarm system based on LoRa is proposed.Using the new LoRa modulation technology and433 MHz center frequency point,and combined with the characteristics of cultural relics,built a wireless fire alarm system.Through the low-power design of the fire detection alarm node,the electromagnetic field software FEKO is used to analyze the antenna matching simulation and multi-point control mode,which can effectively reduce the system power consumption,and extend the communication distance.By demonstration project the system was tested,which provided technical support for the optimal design of the wireless fire alarm system for cultural relics.

关 键 词：LoRa技术 文物建筑 火灾报警 FEKO软件 

分 类 号：X924.4[环境科学与工程—安全科学] TP277.1[自动化与计算机技术—检测技术与自动化装置]