【摘要】 设计了一个基于PDA的、移动的公交信息数据库并描述了四种面向不同需要的公交信息查询方式及相应的算法。除了提供三种传统的公交查询方式外,还系统提供了以设备持有者为当前所处位置为中心的、公交线路信息的查询。更多还原

【Abstract】 In this paper, a bus-route information system based on PDA is designed. Four query methods in allusion to different people and their algorithms are described. In addition to traditional query function of bus-route information, the system provide a query method which is based on users who own PDA.更多还原