基于GPS和GPRS的个人旅游助理设计与实现

Personal Tourism Assistant Based on GPS and GPRS

针对游客旅游时的诸多不便,利用手持计算机、电子地图、GPS及GPRS收发器实现了一种个人旅游助理。主要功能有景点、及设施查询、最短旅游线路设计、计划旅游线路设计、偏离计划线路报警、紧急求助、信息更新等。通过寻找最近点实现了景点及设施查询功能;使用最短路径算法实现了最短旅游线路设计、计划旅游线路设计功能;通过寻找最近线路段以及计算点到直线的距离确定游客是否偏离计划线路;通过GPRS收发器与Internet相连,实现紧急求助、动态信息查询、信息更新功能。

After discussing a series of problems that tourists faced, a personal tourism assistant designed with a portable computer, a GPS board, a GPRS transceiver and electronic map technology was introduced. It has functions of query of a tourism site or an establishment, design of the shortest tourism line, design of the intended tourism line, help for urgency, update of information, etc. Query of information for a lourism site or an establishment is implemented by search nearest point. Design of the shortest tourism line and the intended tourism line are implemented with the algorithm for the shortest path. Help for urgency and query of dynamic information and update of information are implemented by connecting to Internet through the GPRS transceiver.