Application of Mesh Network Technology in Emergency Communication for Elevators
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 1 000 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.
Mesh network technologyelevator emergency communicationwireless communication
万方数据
维普
