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该文介绍DM196-MAP无线集群调制解调器的原理和特点,并给出它在350M公安集群网络中进行综合信息交换的一个应用实例。该实例综合使用无线调制解调技术、GIS信息技术、多路接入技术、Client/Server结构的数据库应用技术和嵌入式系统终端技术,并结合Map27协议控制技术,在公安模拟集群网络上实现高达9600bps的数传达率,使在模拟集群系统上开展多种数据通信业务成为可能,进而提升了模拟集群系统的业务功能。
This article introduces the principle and characteristics of the DM196-MAP wireless trunking modem and gives an example of its application in the 350M public security trunking network for integrated information exchange. The example uses wireless modulation and demodulation technology, GIS information technology, multi-access technology, Client / Server structure of the database application technology and embedded system terminal technology, combined with Map27 protocol control technology in the public security simulated cluster network up to 9600bps data transfer rate, the analog cluster system to carry out a variety of data communication services possible, and thus enhance the analog cluster system business functions.