多线程技术在航天测控网数据流分割中的应用
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摘要
将多线程技术应用于航天测控网数据流的数据分割过程,解决多站多目标跟踪状态下数据流保存为数据文件的难题。首先分析测控网数据流模型,提出数据分割的概念;然后阐述引入多线程技术进行数据处理的必要性,提出利用多线程同步对象等待机制来实现数据分割、数据文件生成的方法,并给出程序的关键代码。应用和测试表明,该方法在生成数据文件的过程中,可实现对航天测控网数据流的无损分割,可靠性高,实时性较强。
Multithread technology can be applied to solve the problem that the data stream of space Tracking Telemetry and Command( TT&C) network is difficult to be segmented and saved into files when multiple space targets are tracked by multiple space TT&C stations. Firstly,the model of the data stream in space TT&C network is analyzed and the conception of data segmentation is presented. Then,the necessity and possibility of using multithread technology are explained. At the same time,the method of data segmentation and data file generation is proposed by using the waiting mechanism of multithread synchronous object,and the key program code of the application is given. The practical application and the test show that the lossless data segmentation can be realized by this method in processing the data stream of space TT&C station and generating data file,and the method is high reliable and real-time.
Multithread technology can be applied to solve the problem that the data stream of space Tracking Telemetry and Command( TT&C) network is difficult to be segmented and saved into files when multiple space targets are tracked by multiple space TT&C stations. Firstly,the model of the data stream in space TT&C network is analyzed and the conception of data segmentation is presented. Then,the necessity and possibility of using multithread technology are explained. At the same time,the method of data segmentation and data file generation is proposed by using the waiting mechanism of multithread synchronous object,and the key program code of the application is given. The practical application and the test show that the lossless data segmentation can be realized by this method in processing the data stream of space TT&C station and generating data file,and the method is high reliable and real-time.
引文
[1]郝岩.航天测控网[M].北京:国防工业出社,2004.
[2]徐俊,陈雪军,赵乾宏,等.航天测控通信IP网中可控组播的实现[J].遥测遥控,2012,33(4):63-65.
[3]党琦,王崇晖,董广然,等.航天测控站数据传输处理系统构件化设计[J].电讯技术,2015,55(10):1141-1145.
[4]范斐,赵辉,闫旭,等.信息流量监控技术及其应用[J].飞行器测控学报,2011,30(4):82-85.
[5]鄢青青,沈怀荣,邵琼玲.航天测控资源调度问题建模与求解研究综述[J].系统仿真学报,2015,27(1):1-12.
[6]邓凤军,张龙,王益中.一种HDLC协议多通道通信卡的设计与实现[J].测控技术,2013,32(11):111-114.
[7]唐淼,王晨辰.基于Lua的PDXP协议数据分析插件开发[J].计算机应用与软件,2015,32(1):121-123.
[8]程红萍,马明远,张波.卫星和飞船的跟踪测控模型[J].科学技术与工程,2012,12(16):4050-4055.
[9]Jeffrey R.Windows高级编程指南[M].3版.王书洪,刘光明译.北京:清华大学出版社,1999.
[10]章秦.Win32多线程同步技术浅析[J].电子设计工程,2011,19(21):56-58.
[11]许斌龙,张晶,王国明.Win32环境下的多线程同步技术研究[J].计算机技术与发展,2013(12):26-29.
[12]刘荣华.Oracle数据库管理与应用系统开发[M].北京:人民邮电出版社,2005.
[13]钟垣如.VC++编程技术与技巧研究[J].计算机与网络,2015,41(11):71-72.
[14][美]帕罗赛斯.MFC Windows程序设计[M].2版.北京:清华大学出版社,2001.
[15]罗惠琼,杨亚玲,杨国渝,等.计算机网络编程与数据通信[M].北京:国防工业出版社,2015.
[16]钟小权,叶猛.Oracle数据库的SQL语句优化[J].计算机与现代化,2011(3):124-126.
[17]卢小丽.利用Oracle数据库的blob字段保存各种文件的方法[J].电脑知识与技术,2012,8(8):5271-5274.
[2]徐俊,陈雪军,赵乾宏,等.航天测控通信IP网中可控组播的实现[J].遥测遥控,2012,33(4):63-65.
[3]党琦,王崇晖,董广然,等.航天测控站数据传输处理系统构件化设计[J].电讯技术,2015,55(10):1141-1145.
[4]范斐,赵辉,闫旭,等.信息流量监控技术及其应用[J].飞行器测控学报,2011,30(4):82-85.
[5]鄢青青,沈怀荣,邵琼玲.航天测控资源调度问题建模与求解研究综述[J].系统仿真学报,2015,27(1):1-12.
[6]邓凤军,张龙,王益中.一种HDLC协议多通道通信卡的设计与实现[J].测控技术,2013,32(11):111-114.
[7]唐淼,王晨辰.基于Lua的PDXP协议数据分析插件开发[J].计算机应用与软件,2015,32(1):121-123.
[8]程红萍,马明远,张波.卫星和飞船的跟踪测控模型[J].科学技术与工程,2012,12(16):4050-4055.
[9]Jeffrey R.Windows高级编程指南[M].3版.王书洪,刘光明译.北京:清华大学出版社,1999.
[10]章秦.Win32多线程同步技术浅析[J].电子设计工程,2011,19(21):56-58.
[11]许斌龙,张晶,王国明.Win32环境下的多线程同步技术研究[J].计算机技术与发展,2013(12):26-29.
[12]刘荣华.Oracle数据库管理与应用系统开发[M].北京:人民邮电出版社,2005.
[13]钟垣如.VC++编程技术与技巧研究[J].计算机与网络,2015,41(11):71-72.
[14][美]帕罗赛斯.MFC Windows程序设计[M].2版.北京:清华大学出版社,2001.
[15]罗惠琼,杨亚玲,杨国渝,等.计算机网络编程与数据通信[M].北京:国防工业出版社,2015.
[16]钟小权,叶猛.Oracle数据库的SQL语句优化[J].计算机与现代化,2011(3):124-126.
[17]卢小丽.利用Oracle数据库的blob字段保存各种文件的方法[J].电脑知识与技术,2012,8(8):5271-5274.