基于LoRa和GPRS的无线火灾报警系统设计  

Design of wireless fire alarm system based on LoRa and GPRS

作　　者：齐斌[1] 胡兵[2] 王小娟[2] QI Bin;HU Bing;WANG Xiao-juan(Xinjiang Construction Vocational and Technical College,Xinjiang Urumqi 830054,China;Xinjiang Institute of Technology,Xinjiang Urumqi 830023,China)

机构地区：[1]新疆建设职业技术学院,新疆乌鲁木齐830054 [2]新疆工程学院,新疆乌鲁木齐830023

出　　处：《消防科学与技术》2021年第2期242-245,共4页Fire Science and Technology

基　　金：新疆维吾尔自治区自然科学基金面上项目(2017D01A27)。

摘　　要：针对传统火灾报警系统无法满足高大狭窄空间以及博物馆、文物保护建筑等特殊场合实际火灾报警需求的问题,设计一种基于LoRa和GPRS的无线火灾报警系统。系统利用LoRa进行火灾传感信息长距离传输,采用GPRS进行火灾报警信息远距离传送,选取Modbus总线通信连接LoRa无线模块和GPRS无线模块。设计过程详细介绍了系统控制方案、硬件组成和软件设计,进行系统测试与实验验证。实验表明,系统能够实时监控现场温度、烟雾变化,及时报警并发送报警信息,运行稳定,及时准确,满足特定场合对火灾报警器的需求。该系统的应用可以提高火灾预报能力,增强消防应急处突能力,是对有线火灾报警系统的有效补充。Aiming at the problem that the traditional fire alarm system cannot meet the actual fire alarm requirements in special occasions such as tall and narrow spaces,museums,cultural relics protection buildings,etc,designed a wireless fire alarm system based on LoRa and GPRS.The system used LoRa and GPRS separately for long-distance transmission of fire sensing information and fire alarm information.And Modbus communication is selected to connect LoRa and GPRS wireless module.The design process introduced the system control scheme,hardware composition and software design in detail,and carried out the system testing and experimental verification.The experimental results show that the system can monitor the field temperature and smoke data in real time,be able to alarm and send the information in time.The operation is stable,and the forecast is timely and accurate,which meets the needs of fire alarms on specific occasions.The application of the system can improve the ability of fire forecasting and enhance the emergency response capability of the fire,which is an effective supplement to the wired fire alarm system.

关 键 词：LoRa GPRS 火灾报警系统 MODBUS总线 

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]