Research on the Construction Method of Emergency Wireless Communication System for Broadband and Narrowband Integration in the High Mountain and Canyon Areas of Western Sichuan:Taking the Construction of Ya'an in Sichuan as an Example
Emergency wireless communication is a crucial part of emergency management informationization construction tasks,and plays a fallback key role in communication during disaster and accident rescue processes.The terrain in the high mountain and canyon areas of western Sichuan is complex,and natural disasters occur frequently.Emergency wireless communication networks need to have stronger resilience and coverage.This paper takes the construction of emergency wireless communication system in Ya'an,Sichuan as an example,and studies the theoretical method of"base station signal coverage+wireless link networking"to construct an emergency wireless communication network architecture that integrating broadband and narrowband.The research proposes a multi-level,multi loop wireless transmission network construction method that combines"high point transmission of backbone network+low point interconnection of secondary network"to enhance network resilience,disaster recovery,and stability.It provides efficient and reliable communication support capabilities for intelligence acquisition,audio and video transmission,command and dispatch in disaster and accident rescue scene,and minimizes disaster and accident losses to the greatest extent possible.
broadband and narrow band integrationemergency wireless communicationnetworking methodsdesign principles
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