远程电力监控系统的数据与图像传输研究
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摘要
随着自动化技术、通信技术以及多媒体技术的发展,电力监控系统有了长足的发展,面对日新月异的要求,传统的遥测、遥信、遥调和遥控“四遥”功能已经不能完全满足监控系统的需求了,因此在此基础上引入图像监控,进一步完善电力远程监控系统。图像监控,通过图像所包含的信息更好地了解所监控现场,对电力监控系统而言其监控对象大都是静态的,所以系统实现静态的图像传输基本可满足需求。图像也是一种数据,将原本的模拟量转换为数字量使之成为可压缩的数据再加以压缩,以图像文件的方式在信道上传输,实现图像监控。对整个监控系统而言,通信是其最关键的一部分,它分为数据通信与图像通信两部分。
本文以实验室进行的电力配电项目为背景,首先对无线数据通信的实现进行分析,并比较了两种通信组网方案:基于无线数传电台方案和基于GPRS无线传输方案。然后对图像通信中的关键技术进行分析研究,并对几种图像的通信方式进行比较。由于图像文件数据量很大,不能通过串口一次性传输,所以要对其数据进行分包,以便在串口中传输,实现和其它数据量采用同一信道进行传输。通过视频采集卡和摄像头监控图像,并将所采集的图像发送到监控中心,实现远程监控系统。系统的实现平台是Visual C++,从试验的角度,采用视频采集卡、摄像头和PC机结合的系统。
本文第一章简要介绍了电力监控系统的发展和通信技术;第二章介绍了基于不同通信方式的远程监控系统;第三章对远程数据通信的实现进行分析;第四章对图像通信中的关键技术进行介绍;第五章主要是通过实验实现图像的传输;最后一章是对全文内容的总结以及一些展望。
Along with the development of automated technology, the communication as well as the multimedia technology, the electric power supervisory system had the considerable development. Faced with the ever-changing demands, the traditional "four remote" function already cannot completely satisfy the supervisory system's demands. Therefore introduces the image monitoring to consummate the electric power long-distance supervisory system. The image monitoring, through the information contained in the images we can know more about the monitoring scene. The monitoring objects of the electric power supervisory system mostly are static state, so if the system achieves the image transmissions it can basic meet the demands. The image also is a kind of data, the analog signals is converted to digital signals, so the data can be compressed. Then it will be transmitted by the image document's way on the channel, realizes the image monitoring. To the entire supervisory system, the communication is the most crucial part, it divides into data communications and image communications.
The paper bases on the electricity distribution project which carried on the laboratory. first, makes analysis to the realization of wireless data communications and has compared two kinds of communication networks: the project based on wireless digital radio and the project based on GPRS wireless transmission. Then conducts the analytical study to visual communication's key technologies, and carries on the comparison to several modes of image communication. Because the data of the image document is very huge, so it is necessary to make the sub-data in order to transmit in the COM. It realizes the image files and other data using the identical channel to carry on the transmission. Using the video frequency gathering card and camera monitoring the scene, and sending the image to the monitoring center, so that it realizes the long-distance supervisory system.. the platform of the system is Visual C++, from the experimental angle, uses video frequency gathering card, camera and PC to make up a system.
The first chapter briefly introduced the development of the electric power supervisory system and communication technology; the second chapter introduced the remote supervisory system basing on the different means of communication; the third chapter analyzed the realization of long-distance data communications; Chapter IV introduced the key technology in the image communication; In Chapter V realized the image communication in experiment; The last chapter is the summarize of the whole text and some prospects.
本文以实验室进行的电力配电项目为背景,首先对无线数据通信的实现进行分析,并比较了两种通信组网方案:基于无线数传电台方案和基于GPRS无线传输方案。然后对图像通信中的关键技术进行分析研究,并对几种图像的通信方式进行比较。由于图像文件数据量很大,不能通过串口一次性传输,所以要对其数据进行分包,以便在串口中传输,实现和其它数据量采用同一信道进行传输。通过视频采集卡和摄像头监控图像,并将所采集的图像发送到监控中心,实现远程监控系统。系统的实现平台是Visual C++,从试验的角度,采用视频采集卡、摄像头和PC机结合的系统。
本文第一章简要介绍了电力监控系统的发展和通信技术;第二章介绍了基于不同通信方式的远程监控系统;第三章对远程数据通信的实现进行分析;第四章对图像通信中的关键技术进行介绍;第五章主要是通过实验实现图像的传输;最后一章是对全文内容的总结以及一些展望。
Along with the development of automated technology, the communication as well as the multimedia technology, the electric power supervisory system had the considerable development. Faced with the ever-changing demands, the traditional "four remote" function already cannot completely satisfy the supervisory system's demands. Therefore introduces the image monitoring to consummate the electric power long-distance supervisory system. The image monitoring, through the information contained in the images we can know more about the monitoring scene. The monitoring objects of the electric power supervisory system mostly are static state, so if the system achieves the image transmissions it can basic meet the demands. The image also is a kind of data, the analog signals is converted to digital signals, so the data can be compressed. Then it will be transmitted by the image document's way on the channel, realizes the image monitoring. To the entire supervisory system, the communication is the most crucial part, it divides into data communications and image communications.
The paper bases on the electricity distribution project which carried on the laboratory. first, makes analysis to the realization of wireless data communications and has compared two kinds of communication networks: the project based on wireless digital radio and the project based on GPRS wireless transmission. Then conducts the analytical study to visual communication's key technologies, and carries on the comparison to several modes of image communication. Because the data of the image document is very huge, so it is necessary to make the sub-data in order to transmit in the COM. It realizes the image files and other data using the identical channel to carry on the transmission. Using the video frequency gathering card and camera monitoring the scene, and sending the image to the monitoring center, so that it realizes the long-distance supervisory system.. the platform of the system is Visual C++, from the experimental angle, uses video frequency gathering card, camera and PC to make up a system.
The first chapter briefly introduced the development of the electric power supervisory system and communication technology; the second chapter introduced the remote supervisory system basing on the different means of communication; the third chapter analyzed the realization of long-distance data communications; Chapter IV introduced the key technology in the image communication; In Chapter V realized the image communication in experiment; The last chapter is the summarize of the whole text and some prospects.
引文
[1]Tamara Dean.远程通信技术[M].北京:清华大学出版社,2004.1
[2]屠强等.变电所自动化私用技术及应用指南[M].北京:中国电力出版社,2004
[3]何小海.数字图像通信及其应用[M].成都:四川大学出版社,2006.7
[4]赵贵中,王克英.电力系统远程无线视频监控系统设计[J].工矿化自动化.2007.8,04:56-58
[5]涂光瑜,罗毅.电力遥视系统原理与应用[M].北京.机械工业出版社,2005.1
[6]Roy Blake.无线通信技术[M].北京:科技出版社,2004
[7]摩托罗拉工程学院.GPRS网络技术[M].北京:电子工业出版社,2005.6
[8]朱秀昌.图像通信应用系统[M].北京:北京邮电大学出版社,2003.6
[9]宋金燕.压缩数字图象的无线传输技术[J].四川大学报.2004.8,41(04):764-767
[10]佟详明.无人值守通信己方的远程监控系统[J].专网通信.2005.9:74-76
[11]冯邦成,康积涛.以太网在变电站自动化系统通信中的应用前景[J].电力自动化设备.2006.7:62-68
[12]温阳,徐晓辉等.无线通信在智能温室系统中的应用[J].自动化与仪表.2007(5):47-51
[13]刘建军.变电站遥视系统的设计[J].无线电工程.2007(8):44-47
[14]李现勇.Visual C++串口通信技术与工程实践[M].北京:人民邮电出版社,2004.7
[15]盛寿麟编.电力系统远程监控原理[M].北京:中国电力出版社,1998
[16]崔海深.船舶图像监控系统的演技与设计[D].大连海事大学硕士学位论文,2006.09
[17]提兆旭,陈赤陪.电力系统计算机调度自动化[M].上海:上海交通大学出版社,1995
[18]姚建国,杨胜春等.电网调度自动化系统发展趋势展望[J].电力系统自动化.2007.07:7-11
[19]沈祥,祝项英等.无人值班变电站远方监控系统的设计和应用[J].电力系统自化.2004.01:89-90
[20]郑先锋,邹建华等.变电站远程多媒体监控系统设计[J].高压电器.2003.04:47-55
[21]程明.无人值守变电站设备管理信息系统的研究[J].科技咨询导报.2007.08:46-49
[22]黄小磊.GPRS在远程监控模型中的应用[J].广西通信技术.2006.12:16-20
[23]吴坚,刘高平.基于GPRS网络的点对点图像传输方案[J].计算机应用研究.2004.05:222-231
[24]肖蒙,陈永刚.基于B_S结构的远程监控技术研究与应用[J].兰州铁道学院报.2003.12:35-72
[25]全惠敏,戴瑜兴.一种基于Internet的中央空调远程监控系统的设计.电气应用.2006.1249-51
[26]金闯.基于Internet/GPRS/Web GIS的三峡库区水环境安全监测系统[D].重庆大学硕士学位论文,2007.05
[27]杨俊.变电站遥视图像的识别研究[D].华北电力大学硕士学位论文,2004.12
[28]张寅.基于GPRS的远程无线监控系统[D].燕山大学硕士学位论文,2006.01
[29]胡荣强.远程监控系统中网络通信的研究与实现[D].武汉理工大学硕士学位论文,2006.04
[30]闫东泽.远程数字视频监控系统设计与实现[D].大连理工大学硕士学位论文,2006.06
[31]崔孟荣.图象监控技术的研究与应用[D].山东科技大学硕士学位论文,2004.05
[32]文慧霞.基于GPRS远程监控系统的研究[D].太原理工大学硕士学位论文,2004.05
[33]张泉变.电站综合自动化系统的设计和研究[D].天津大学硕士学位论文,2005.06
[34]李文鑫.基于Internet的远程实时监控系统研究[D].武汉理工大学硕士学位论文,2006.05
[35]杨刚.变电站自动化系统及其通信体系的研究[D].中国农业大学博士学位论文,2004.05
[36]刘宏妮.借助VC++解决RS-485串口通信程序中的一些问题[J].辽宁科技报.2007.03:09-10
[37]陈卫东,陈亚霖.基于GPRS网络的粮库远程图像监控系统[J].河南工业大学报.2007.10:58-64
[38]李成贵,古庆华.基于VC++和数据库的串口监控系统软件的开发[J].吉首大学学报.2007.07:49-54
[39]顾环宇.用VB6.0实现设备串口通信及监控功能[J].数据库及信息管理.2007.10:1487-1494
[40]李青.应用win32API函数开发串口通讯程序[J].机械与电子.2007.10:56-58
[41]马琼霞.无人值班变电站设备状态监测的实时信息分析与管理[D].四川大学硕士学位论文.2005.11
[2]屠强等.变电所自动化私用技术及应用指南[M].北京:中国电力出版社,2004
[3]何小海.数字图像通信及其应用[M].成都:四川大学出版社,2006.7
[4]赵贵中,王克英.电力系统远程无线视频监控系统设计[J].工矿化自动化.2007.8,04:56-58
[5]涂光瑜,罗毅.电力遥视系统原理与应用[M].北京.机械工业出版社,2005.1
[6]Roy Blake.无线通信技术[M].北京:科技出版社,2004
[7]摩托罗拉工程学院.GPRS网络技术[M].北京:电子工业出版社,2005.6
[8]朱秀昌.图像通信应用系统[M].北京:北京邮电大学出版社,2003.6
[9]宋金燕.压缩数字图象的无线传输技术[J].四川大学报.2004.8,41(04):764-767
[10]佟详明.无人值守通信己方的远程监控系统[J].专网通信.2005.9:74-76
[11]冯邦成,康积涛.以太网在变电站自动化系统通信中的应用前景[J].电力自动化设备.2006.7:62-68
[12]温阳,徐晓辉等.无线通信在智能温室系统中的应用[J].自动化与仪表.2007(5):47-51
[13]刘建军.变电站遥视系统的设计[J].无线电工程.2007(8):44-47
[14]李现勇.Visual C++串口通信技术与工程实践[M].北京:人民邮电出版社,2004.7
[15]盛寿麟编.电力系统远程监控原理[M].北京:中国电力出版社,1998
[16]崔海深.船舶图像监控系统的演技与设计[D].大连海事大学硕士学位论文,2006.09
[17]提兆旭,陈赤陪.电力系统计算机调度自动化[M].上海:上海交通大学出版社,1995
[18]姚建国,杨胜春等.电网调度自动化系统发展趋势展望[J].电力系统自动化.2007.07:7-11
[19]沈祥,祝项英等.无人值班变电站远方监控系统的设计和应用[J].电力系统自化.2004.01:89-90
[20]郑先锋,邹建华等.变电站远程多媒体监控系统设计[J].高压电器.2003.04:47-55
[21]程明.无人值守变电站设备管理信息系统的研究[J].科技咨询导报.2007.08:46-49
[22]黄小磊.GPRS在远程监控模型中的应用[J].广西通信技术.2006.12:16-20
[23]吴坚,刘高平.基于GPRS网络的点对点图像传输方案[J].计算机应用研究.2004.05:222-231
[24]肖蒙,陈永刚.基于B_S结构的远程监控技术研究与应用[J].兰州铁道学院报.2003.12:35-72
[25]全惠敏,戴瑜兴.一种基于Internet的中央空调远程监控系统的设计.电气应用.2006.1249-51
[26]金闯.基于Internet/GPRS/Web GIS的三峡库区水环境安全监测系统[D].重庆大学硕士学位论文,2007.05
[27]杨俊.变电站遥视图像的识别研究[D].华北电力大学硕士学位论文,2004.12
[28]张寅.基于GPRS的远程无线监控系统[D].燕山大学硕士学位论文,2006.01
[29]胡荣强.远程监控系统中网络通信的研究与实现[D].武汉理工大学硕士学位论文,2006.04
[30]闫东泽.远程数字视频监控系统设计与实现[D].大连理工大学硕士学位论文,2006.06
[31]崔孟荣.图象监控技术的研究与应用[D].山东科技大学硕士学位论文,2004.05
[32]文慧霞.基于GPRS远程监控系统的研究[D].太原理工大学硕士学位论文,2004.05
[33]张泉变.电站综合自动化系统的设计和研究[D].天津大学硕士学位论文,2005.06
[34]李文鑫.基于Internet的远程实时监控系统研究[D].武汉理工大学硕士学位论文,2006.05
[35]杨刚.变电站自动化系统及其通信体系的研究[D].中国农业大学博士学位论文,2004.05
[36]刘宏妮.借助VC++解决RS-485串口通信程序中的一些问题[J].辽宁科技报.2007.03:09-10
[37]陈卫东,陈亚霖.基于GPRS网络的粮库远程图像监控系统[J].河南工业大学报.2007.10:58-64
[38]李成贵,古庆华.基于VC++和数据库的串口监控系统软件的开发[J].吉首大学学报.2007.07:49-54
[39]顾环宇.用VB6.0实现设备串口通信及监控功能[J].数据库及信息管理.2007.10:1487-1494
[40]李青.应用win32API函数开发串口通讯程序[J].机械与电子.2007.10:56-58
[41]马琼霞.无人值班变电站设备状态监测的实时信息分析与管理[D].四川大学硕士学位论文.2005.11