图像数据异地采集同步电路设计
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摘要
在兵器靶场测试中,为了获得不同位置弹丸炸点同一时刻的图像,需要将多台异地测量站放置的摄像机同步采集图像数据,提出了图像数据异地同步采集方案,采用GPS技术设计了一种高精度时统系统。该系统采用GPS授时,由时统控制电路和计数器电路实现本地时钟功能,记录每个测量站摄像机起拍时间,从而实现图像数据采集的异地同步,同步精度可以达到微秒级。
In the test of proving ground,in order to obtain the images of projectiles exploding at the same time in different places,multiple cameras at testing stations in different places were controlled to achieve the synchronous acquisition of the image data.This paper presented a method for synchronous acquisition of image and a design of high precision timing system based on global position system(GPS) technology.This system used the GPS timing signal,realized the local clock through a uniform time circuit and a counter circuit,and could record the starting shooting time of the camera at each station to achieve the synchronous acquisition of the image data.The synchronous precision of the system could be microsecond level.
In the test of proving ground,in order to obtain the images of projectiles exploding at the same time in different places,multiple cameras at testing stations in different places were controlled to achieve the synchronous acquisition of the image data.This paper presented a method for synchronous acquisition of image and a design of high precision timing system based on global position system(GPS) technology.This system used the GPS timing signal,realized the local clock through a uniform time circuit and a counter circuit,and could record the starting shooting time of the camera at each station to achieve the synchronous acquisition of the image data.The synchronous precision of the system could be microsecond level.
引文
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[2]陈勖,李尔园.全球定位系统(GPS)现代化运行控制段(OCX)的进展与现状[J].全球定位系统,2010,35(2):56-60.CHEN Xu,LI Er-yuan.Progress and status of GPSoperational control segment[J].Gnss World of Chi-na,2010,35(2):56-60.(in Chinese with an Englishabstract)
[3]张惠,张健,梁兴忠.全球定位系统(GPS)技术的发展现状及未来发展趋势[J].仪器仪表标准化与计量,2011,21(2):38-40.ZHANG Hui,ZHANG Jian,LIANG Xing-zhong.De-velopment status and trends of global positioning sys-tem technology[J].Instrument Standardization&Metrology,2011,21(2):38-40.(in Chinese with anEnglish abstract)
[4]王喜文,朱晓东.精确的时间同步技术[J].现代雷达,2008,30(8):91-93.WANG Xi-wen,ZHU Xiao-dong.Accurate time syn-chronization technology[J].Modern Radar,2008,30(8):91-93.(in Chinese with an English abstract)
[5]左丽霞,邓芳芳,卢山.基于DSP的高速数据采集系统设计与实现[J].电力系统保护与控制,2010,38(13):108-112.ZUO Li-xia,DENG Fang-fang,LU Shan.Design andimplementation of a high-speed data acquisition sys-tem based on DSP[J].Power System Protection andControl,2010,38(13):108-112.(in Chinese with anEnglish abstract)
[6]阳继军.基于GPS授时的地震采集系统同步系统设计[J].石油仪器,2009,23(1):82-87.YANG Ji-jun.Design of a synchronous system ofseismic acquisition based on GPS[J].Petroleum In-struments,2009,23(1):82-87.(in Chinese with anEnglish abstract)
[7]闻新,刘宝忠,林闻晓.MCS-51与GPS-OEM板串行通信技术及实现[J].全球定位系统,2006,31(4):14-17.WEN Xin,LIU Bao-zhong,LIN Wen-xiao.Implemen-tation of technology of serial communication betweenMCS-51and GPS-OEM board[J].Gnss World ofChina,2006,31(4):14-17.(in Chinese with anEnglish abstract)
[8]赵志峰,陈湘萍.基于STC12C5A60S2的RS-232串口数据分析器设计[J].现代计算机,2010,34(12):104-106.ZHAO Zhi-feng,CHEN Xiang-ping.Design of RS-232serial data analyzer based on STC12C5A60S2[J].Modern Computer,2010,34(12):104-106.(inChinese with an English abstract)
[9]宋凤娟,付侃,薛雅丽.STC12C5A60S2单片机高速A/D转换方法[J].煤矿机械,2010,31(6):219-221.SONG Feng-juan,FU Kan,XUE Ya-li.Method ofhigh speed transformation of A/D of STC12C5A60S2SCM[J].Coal Mine Machinery,2010,31(6):219-221.(in Chinese with an English abstract)
[10]张海雯,张鹏,王少荣.高性能GPS时间同步装置研制[J].电力自动化设备,2003,23(4):37-40.ZHANG Hai-wen,ZHANG Peng,WANG Shao-rong.Development of high quality time synchronousdevice based on GPS[J].Electric Power Automa-tion Equipment,2003,23(4):37-40.(in Chinesewith an English abstract)
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