【摘要】 随着中国彻底进入移动互联网时代,移动出行以其快捷便利的优势,迅猛发展。但是其后续保障建设的滞后导致了移动出行车辆缺乏统一的监督管理平台,安全事故频发。该文基于Android和百度地图开发平台开发了一套移动出行监测系统,可同时实现1000辆车的信息管理、实时定位与跟踪、历史轨迹查询和卫星图展示等功能。首先,通过GNSS模块接收卫星信号,并利用socket技术发送给服务器,经服务器解析处理存入数据库。然后,Android客户端通过web服务器访问数据库,获取车辆、卫星信息,并在客户端实时显示。该监控系统使用线程池模型改进生产者—消费者模式,解决大容量突发性数据请求造成的严重丢包率;采用动态建表的方式,将数据分时存储在不同数据表中,解决了海量数据查询效率低的问题;使用轻量级数据格式JSON,保证了Android客户端与远程数据库之间的实时通信,并解决了手机流量消耗大的问题。经验证,该系统可高效、稳定、长时间运行。更多还原

【Abstract】 With the complete access to the mobile Internet are of China, the mobile travel service is developing rapidly owing to itsadvantages of speediness and convenience. However, the lag of subsequent protection has result in a lack of unified supervisionand management platforms for the mobile travel vehicles and frequent safety accident. Therefore, based on Android and Baidumap, a novel Real-time Vehicle Monitoring System(RTVMS) is developed which can achieve the information management of 1000 vehicles at the same time, real-time locating and tracking, historical track query and satellite map display and so on. Firstly, satel-lite signals are received by the GNSS module and sent to the server using the socket technology and saved into the database afterthe server analyzing. Then, information of vehicles and satellites could be obtained and real-time displayed by accessing the data-base from Android client. In the RTVMS, the problem of serious packet loss rate caused by large capacity sudden data request issolved by a new model, which is from a consumer model improved by a thread pool model. The low-efficiency problem of massivedata query is solved by a way of dynamic tabling where data is stored in different data table. The problems of real-time communica-tion between Android client and remote database and the large traffic consumption of cell phone is solved by using the light-weightdata format JSON. It has been proven that the novel system is efficient, stable and running for long.更多还原