基于LoRa技术的天基搜寻定位系统设计与实现  

Design and Implementation of Space-Based Search-Positioning System Based on LoRa Technology

作　　者：张琛 余利君 蔡濛 张添铄 ZHANG Chen;YU Lijun;CAI Meng;ZHANG Tianshuo(Academy of Military Sciences,Beijing 100000,China;The Third Affiliated Hospital of Naval Medical University,Shanghai 200000,China)

机构地区：[1]军事科学院,北京100000 [2]海军军医大学第三附属医院,上海200000

出　　处：《计算机测量与控制》2025年第3期243-249,258,共8页Computer Measurement &Control

摘　　要：LoRa技术在各类应急搜寻定位中广泛应用,基于LoRa技术的应急搜寻定位系统主要依靠于陆基、空基与海基平台,此类平台缺乏广域发现与快速响应能力,不利于搜救人员第一时间掌握遇险人员的相关情况;同时,现有的卫星搜寻定位设备体积较大、功耗较高,不适合于随身携带与长时间使用;为了解决上述问题,设计一种基于天基平台的应急搜寻定位系统,采用LoRa与卫星技术,研制新型天基信号转发器;同时,采用可视化技术与地理信息数据,嵌入高精度传感器,研制地面求救与搜救设备,实现遇险人员搜寻定位;实验结果表明,该系统工作稳定可靠,将搜寻幅宽提升至千公里级别,具有一定的指导意义。Currently,LoRa technology is widely used in emergency search-positioning systems,but the system based on the LoRa technology mainly relies on land-based,air-based and sea-based platforms.These platforms lack the ability to search sea widely and respond rapidly,and it is not convenient for rescue personnel to grasp the situation of distressed individuals in a timely manner.Meanwhile,existing satellite search-positioning equipment usually has the characteristics of large size and high power dissipation,which is not suitable for carry-on and prolonged usuage.In order to solve the above problems,an emergency search-positioning system based on space-based platform is designed and implemented.The LORA technology is combined with satellite platform to develop a new space-based search-positioning payload.And then,visualization technology,geographic information data and high precision sensors are introduced to develop ground distress and search-rescue equipment,achieving rescue positioning for workers in distress.Experimental results show that the system is stable and reliable and has certain guiding significance with a search-positioning scope up to 1000 km.

关 键 词：LoRa 卫星平台 搜寻定位 传感器应用 可视化救援 系统设计 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]