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基于数据库通知服务的车辆定位系统的研究 被引量:1

Research of VPS Based on Database Notification Service
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摘要 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 the analysis and research of existing methods for remote vehicle-location,problems on real-time and execution effi- ciency 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 notifica- tion service method that based on original positioning system to overcome the defects. Moreover,the method realizes the function of accu- rate positioning for remote vehicles and highly improves program efficiency. Finally, the feasibility of the method is verified by actual pro- gram development and many program tests.
出处 《计算机技术与发展》 2012年第3期89-91,95,共4页 Computer Technology and Development
基金 国家"863"高科技研究发展计划基金(2009AA062704)
关键词 车辆定位系统 数据库通知服务 全球定位系统 车辆定位 VPS database notification servicc GPS vehicle positioning
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  • 1钟锡华.多普勒频移的普遍公式[J].大学物理,1995,14(10):16-18. 被引量:26
  • 2李华贵,项志华,何伟,李鹏.基于GPS和GPRS车载导航定位系统的实现[J].计算机技术与发展,2006,16(11):241-242. 被引量:10
  • 3王宜举,修乃华,非线性最优化理论与方法[M].北京:科学教育出版社,2012,1.
  • 4Alam N, Dempster A G. Cooperative positioning for vehicular networks:facts and future [ J ]. IEEE Transactions on Intelli- gent Transportation Systems,2013,14 (4) : 1708-1717.
  • 5Alam N, Balaei A T, Dempster A G. Range and range- rate measurements using DSRC :facts and challenges[ C ]//Proc of IGNSS symposium. Surfers Paradise, Australia : [ s. n. ] ,2009.
  • 6Cui Tao,Tellambura C. Joint frequency offset and channel es- timation for OFDM systems using pilot symbols and virtual carriers [ J ]. IEEE Trans on Wireless Communication, 2007,6 (4) :1193-1202.
  • 7Lv Tiejun, Li Hua, Chen Jie. Joint estimation of symbol timing and carrier frequency offset of OFDM signals over fast time- varying multipath channels[ J]. IEEE Trans on Signal Process- ing,2005,53(12) :4526-4535.
  • 8Tao Jun, Wu Jingxian, Xiao Chengshan. Estimation of channel transfer function and carrier frequency offset for OFDM sys- tems with phase noise[ J]. IEEE Trans on Vehicular Technolo- gy ,2009,58 ( 8 ) :4380-4387.
  • 9Chiavaccini E, Vitetta G M. Maximum-likelihood frequency recovery for OFDM signals transmitted over muhipath fading channels [ J ]. IEEE Trans on Communication, 2004,52 ( 2 ) : 244-251.
  • 10Schmidl T M, Cox D C. Robust frequency and timing synchro- nization for OFDM [ J ]. IEEE Trans on Communication, 1997, 45(12) :1613-1621.

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