分分快三

产物展现
SYN2401型PTP紧密主时钟
价钱面议(yi): ****
SYN2411型IEEE1588主时钟
价(jia)钱面(mian)议: ****
SYN2407型PTP同步时钟授时板卡
价(jia)钱面议: ****
PTP专栏

PTP时候办事器的特色和道理

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颁(ban)发时候(hou):2020-02-12 07:59作者:同步全(quan)国来(lai)历(li):首(shou)创

时候办事器是指一种能够或许或许接斗极、GPS、GLONASS等卫星旌旗灯号,并能够或许或许依托卫星定位旌旗灯号停止授时的装备。今朝时候办事器有领受单卫星旌旗灯号的装备也有领受多种卫星旌旗灯号的装备,并且他们的授时体例也有多种,比方串口传时、IRIG-B码授时、NTP收集授时、1PPS脉冲授时、PTP授时、CDMA授时、等多种授时体例。

在科技的(de)疾速(su)前(qian)(qian)进(jin)和(he)(he)(he)成长下(xia),各(ge)个范(fan)畴也在不时(shi)前(qian)(qian)进(jin)和(he)(he)(he)转变,而对(dui)授(shou)(shou)(shou)时(shi)装(zhuang)备(bei)(bei)方面(mian)的(de)需要也愈(yu)(yu)来愈(yu)(yu)多(duo),比(bi)方对(dui)时(shi)候(hou)办事器(qi)的(de)切确度(du)、不变度(du)、便携(xie)性等(deng)提出(chu)了(le)愈(yu)(yu)来愈(yu)(yu)高(gao)的(de)请求,以是(shi)时(shi)候(hou)办事器(qi)的(de)授(shou)(shou)(shou)时(shi)体(ti)例和(he)(he)(he)品种(zhong)也在不时(shi)转变和(he)(he)(he)前(qian)(qian)进(jin)。时(shi)候(hou)办事器(qi)授(shou)(shou)(shou)时(shi)体(ti)例遍及以NTP收集(ji)授(shou)(shou)(shou)时(shi)为(wei)主(zhu),它(ta)授(shou)(shou)(shou)时(shi)便利高(gao)效(xiao)并且能够(gou)或(huo)许(xu)给万(wan)台装(zhuang)备(bei)(bei)授(shou)(shou)(shou)时(shi),可是(shi)NTP收集(ji)授(shou)(shou)(shou)时(shi)缺乏的(de)地(di)方是(shi)不硬件撑(cheng)持,精度(du)不高(gao)最多(duo)到达毫秒级(ji),没法很好的(de)知足古代产业(ye)节制, 如电(dian)力行(xing)业(ye)、轨道交(jiao)通等(deng)对(dui)精度(du)请求比(bi)拟高(gao)的(de)的(de)操(cao)纵(zong)需要,而PTP主(zhu)时(shi)钟装(zhuang)备(bei)(bei)因为(wei)操(cao)纵(zong)PTPV2,IEEE1588-2008和(he)(he)(he)谈,使得(de)授(shou)(shou)(shou)时(shi)精度(du)获得(de)了(le)进(jin)步(bu)可到达纳秒级(ji)别。IEEE 1588规范(fan)被称(cheng)(cheng)为(wei)“收集(ji)丈量(liang)和(he)(he)(he)节制体(ti)系的(de)紧密时(shi)钟同步(bu)和(he)(he)(he)谈规范(fan)”或(huo)简称(cheng)(cheng)为(wei)“PTP”。


以是(shi)(shi)有些行业则(ze)按(an)照他们的操纵情况(kuang)差别或授时(shi)(shi)(shi)精(jing)度差别则(ze)挑选(xuan)PTP的授时(shi)(shi)(shi)体(ti)例(li)。PTP授时(shi)(shi)(shi)也是(shi)(shi)一(yi)种较(jiao)为(wei)罕见的授时(shi)(shi)(shi)体(ti)例(li),PTP是(shi)(shi)IEEE 1588简称(PTP,picture transfer protocol)是(shi)(shi)规(gui)范化的切(qie)(qie)确时(shi)(shi)(shi)候(hou)和(he)(he)(he)(he)谈(tan),界说了一(yi)个在(zai)丈量(liang)和(he)(he)(he)(he)节制体(ti)系中,与收集通讯,本地计较(jiao)和(he)(he)(he)(he)分派工具有关的切(qie)(qie)确时(shi)(shi)(shi)钟(zhong)(zhong)同步(bu)和(he)(he)(he)(he)谈(tan),该(gai)和(he)(he)(he)(he)谈(tan)合用(yong)于任(ren)何知(zhi)足(zu)多(duo)点通讯的散布式节制体(ti)系,对接纳多(duo)播(bo)手(shou)艺终真(zhen)个时(shi)(shi)(shi)钟(zhong)(zhong)可完成亚奥妙级同步(bu),并且能到达更高的精(jing)度。




PTP授时道理,PTP授不时(shi)钟(zhong)能够或许完成(cheng)主(zhu)(zhu)(zhu)(zhu)时(shi)(shi)(shi)钟(zhong)(zhong)和从(cong)时(shi)(shi)(shi)钟(zhong)(zhong)功效,可是一(yi)个PTP通讯子网(wang)内只能有一(yi)个主(zhu)(zhu)(zhu)(zhu)时(shi)(shi)(shi)钟(zhong)(zhong)。PTP授时(shi)(shi)(shi)装备(bei)(bei)SYN2401PTP紧密主(zhu)(zhu)(zhu)(zhu)时(shi)(shi)(shi)钟(zhong)(zhong)领受GPS卫(wei)星旌旗灯(deng)号(hao)输入PTP时(shi)(shi)(shi)候(hou)信(xin)(xin)息(xi),而后SYN2403PTP紧密从(cong)时(shi)(shi)(shi)钟(zhong)(zhong)和SYN2407PTP同步时(shi)(shi)(shi)钟(zhong)(zhong)授时(shi)(shi)(shi)板卡,领受主(zhu)(zhu)(zhu)(zhu)时(shi)(shi)(shi)钟(zhong)(zhong)发来的(de)时(shi)(shi)(shi)候(hou)信(xin)(xin)息(xi),而后从(cong)时(shi)(shi)(shi)钟(zhong)(zhong)再以(yi)B码(ma)、串口停止传输时(shi)(shi)(shi)候(hou)信(xin)(xin)息(xi)。体系(xi)按照此信(xin)(xin)息(xi)计较(jiao)出主(zhu)(zhu)(zhu)(zhu)从(cong)线路时(shi)(shi)(shi)候(hou)提早及主(zhu)(zhu)(zhu)(zhu)从(cong)时(shi)(shi)(shi)候(hou)差,并操纵该时(shi)(shi)(shi)候(hou)差调剂本地时(shi)(shi)(shi)候(hou),从(cong)而使(shi)终(zhong)端装备(bei)(bei)的(de)时(shi)(shi)(shi)候(hou)信(xin)(xin)息(xi)与(yu)PTP主(zhu)(zhu)(zhu)(zhu)时(shi)(shi)(shi)钟(zhong)(zhong)的(de)装备(bei)(bei)时(shi)(shi)(shi)候(hou)信(xin)(xin)息(xi)坚持分(fen)歧,完成(cheng)局域网(wang)内的(de)时(shi)(shi)(shi)候(hou)同步。

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