Mesh网络技术在电梯应急通信中的应用

Application of Mesh Network Technology in Emergency Communication for Elevators

传统的电梯应急通信系统基于有线传输,存在通话质量差、布线成本高等问题。Mesh网络属于无线通信,有效覆盖范围可达1000 m,将该网络技术应用于电梯应急通信,能够提高通信质量、降低运营成本。Mesh网络技术通过高级多带激励进行信号编解码,降低了对带宽的要求,研究设计并开发相应的通信终端和控制软件。经测试,在有障碍条件下,其有效传输距离满足设计要求,通话质量良好且丢包率较低,具有较强的实用性。

The traditional elevator emergency communication system is based on wired transmission,which has some problems such as poor call quality and high wiring cost.Mesh network belongs to wireless communication,and its effective coverage can reach 1000 m.Applying this network technology to elevator emergency communication can improve communication quality and reduce operating cost.Mesh network technology uses advanced multi-band excitation to encode and decode signals,which reduces the bandwidth requirement,and studies,designs and develops the corresponding communication terminal and control software.The test shows that the effective transmission distance meets the design requirements,the call quality is good,and the packet loss rate is low,so it has strong practicability.