单向调频广播用于大区域灾害事故救援指挥的可行性探讨

Feasibility Study of Using Unidirectional FM Broadcasting for Regional Disaster and Accident Rescue Command

重特大灾害事故具有受灾区域广,破坏性强的特点,特别容易导致公共通信网络中断;阴雨天气卫星通信设备因雨衰也难以保证正常工作。消防救援人员个人通信装备除面临信号传输困难外,还存在电池无法及时充电的问题。在山区执行救援任务时,消防救援队伍使用的对讲机通信易受地形影响。调频单向广播具有频率较低、传输性能好、受天气影响小,接收终端多且成本低的特点,可考虑用于下传各类信息等,在大区域灾害事故救援指挥通信保障中具有特定优势。该文就将调频单向广播用于灾害区域信号覆盖,保障消防救援队伍指挥通信的可行性及方法进行了探讨。

Major disasters and accidents have the characteristics of wide affected areas and strong destructive power,which are particularly prone to causing interruptions in public communication networks;In rainy weather,satellite communication equipment cannot guarantee normal operation due to rain attenuation.In addition to facing difficulties in signal transmission,personal communication equipment for firefighting and rescue personnel also faces the problem of batteries not being able to be charged in a timely manner.When carrying out rescue missions in mountainous areas,the intercom communication used by firefighting and rescue teams is easily affected by the terrain.FM unidirectional broadcasting has the characteristics of low frequency,good transmission performance,less weather impact,multiple receiving terminals,and low cost.It can be considered for transmitting various types of information,and has specific advantages in communication support for large-scale disaster and accident rescue command.This article explores the feasibility and methods of using FM one-way broadcasting for signal coverage in disaster areas to ensure the command and communication of firefighting and rescue teams.