车载GPS终端与系统平台消息的中继与转发

The relay and conversion of message between vehicle GPS terminal and monitoring center

由于GPS车载终端与系统平台相互发送和接收的数据协议格式不一样,两边并不能直接的进行数据的发送和接收,因此针对此问题设计一种中继转发的模块对来讲终端和平台互相发送的消息格式进行接收与转换,然后将转换后的消息进行发送,这样就统一了终端与系统平台的数据的发送。由于没有了对于终端选择的限制,方便了系统平台对车载终端的自由选择,同时也便于对不同厂商生产的终端的统一接入与管理,因此中继模块的设计对车载系统非常重要,能够很好地解决终端与系统平台的连接和数据传输问题。

As the data protocol format of sending and receiving between GPS vehicle terminal and monitoring is not the same,The data of both sides can not be directly transmitted and received by each other,so the paper design a relay forwarding module to receive and convert the message format of the terminal and the platform,then converted message is sent, this unify the data transmission of terminal and system platform. Because there is no limit to the terminal selection,it is convenient for system platform to choose vehicle free and for the unified access and management of the terminals which are produced by different manufacturers.So the design of trunk module is very important to the vehicle system, it can solve the problem of connection and data transmission between the terminal and the system.