基于GPS的公交自动报站算法研究

Algorithm for GPS-based Bus Automatic Stations Broadcasting

为了提高公交自动报站的准确性,让乘客有一个愉快的行车体验,文中讨论了两种基于GPS的公交自动报站算法,分别从线路站点信息的采集、车辆上下行方向的判断、进站的判定方法、出站的判定方法四个关键问题进行了充分阐述,并对两种方案各自的优缺进行了比较,第一种算法线路采集简单,算法复杂,准确性低,第二种算法线路采集复杂,算法简单,准确性高。在实际产品中采用了第二种算法,取得了良好效果。

In order to improve the veracity of automatic stations broadcasting in bus, and let passengers have a joyful experience, two algorithms of GPS-based bus automatic stations broadcasting are discussed. The discussion focuses on four key fields： bus stations information collection, driving direction judgement, pull-in judgement and pull-out judgement, and strong points and shortcomings of these two schemes are compared. The first scheme is simple in bus stations information collection and processing, but complex in algorithm and low in veracity of stations broadcasting, while the second is complex in bus stations information collection and processing, but simple in algorithm and high in veracity of stations broadcasting. In practical products the second is employed and achieves excellent application result.