通过对目前远程车辆定位实现方法的分析和研究,阐明了其在实时性、执行效率等方面存在的一些问题,这些问题往往会成为定位系统发展的瓶颈,所以文中主要在阐述一种可以缓解这些问题缺陷的方法.采用在原有定位系统的基础上引入数据库通知服务技术的方法将数据库定位信息的更新及时有效地通知到客户端监控程序,实现了远程车辆及时准确的定位,并且使得程序的执行效率得到明显的提高.最后通过实际的程序开发和大量的实践测试,验证了此方法的可行性.%Based on die analysis and research of existing methods for remote vehicle-location,problems on real-time and execution efficiency are found and gradually becomes an obstacle for the development of position system. Therefore, introduce an effective method which successfully notifies the client monitoring program of updating database location information with the import of database notification service method mat based on original positioning system to overcome the defects. Moreover,the method realizes the function of accurate positioning for remote vehicles and highly improves program efficiency. Finally, the feasibility of die method is verified by actual program development and many program tests.
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