The author first completed interface design between rcm2200 and gps25lp - oem , and connected rcm2200 with local area network . then a communication controller was developed on rcm2200 microprocessor module using dynamic c language to program , which could realize receiving gps data and transmitting these data to local area network in the form of udp message . in local computers , the author used visual c + + to program and presented real - time data that was useful for location to users 作者完成了rcm2200与本地局域网的连接以及与gps25lp ? oem之间的接口设计，采用dynamicc语言编程，在rcm2200嵌入式微控制器模块上开发了一个通信控制器，根据gps25lp ? oem的输出数据类型和格式，提取了gps定位数据并以udp报文的形式转发给本地局域网，在本地局域网的计算机上，采用visualc + +进行编程处理，使用户实时观察到定位所需的有用数据信息。
The ming dynasty used besides the technology of forefathers ' monsoon to make certain routes , the compass to gauide marching , they took a lot of records of the constellation oriented datas and the variety of the ocean orb ' s height in different oceanic areas in the book named < constellation chart of acrossing seas > too , which contribute a lot in the archaian astronomy 明朝船队除了采用前人季风确定航线、指南针导航等技术外，还在《过洋牵星图》中纪录了众多的星宿定位数据和不同海区天体高度的变化，对古代的天文导航有重要贡献。
Its function is that the host computer receives alarm and orientation data from mt or sends commands to mt in virtue of modem . sccs makes different kinds of alarm sound according to receiving different kinds of alarm signal , reminding workers of dealing with corresponding alarm in time , and it transmits orientation data to vector map real - timely displaying currently running circumstances of terminal 功能是计算机借助modem接收来自终端的报警和定位数据或发送命令数据，根据不同的报警类型发出不同的报警声音，提醒工作人员及时处理警情，同时将定位数据实时传输给矢量化地图显示终端当前运行情况。
