桌面型(xing)GPS北斗(dou)(dou)同步時(shi)(shi)(shi)鐘C型(xing)的(de)(de)特點1．體積小(xiao)巧，功耗極低，安裝方(fang)便，兼容(rong)(rong)(rong)性(xing)(xing)強。2.時(shi)(shi)(shi)間精度高(gao)(gao)，達(da)20nS。3.采用(yong)GPS/BD2雙系統精密授(shou)(shou)(shou)時(shi)(shi)(shi)，支持(chi)(chi)單(dan)GPS、單(dan)北斗(dou)(dou)、GPS北斗(dou)(dou)聯合授(shou)(shou)(shou)時(shi)(shi)(shi)多種授(shou)(shou)(shou)時(shi)(shi)(shi)方(fang)式(shi)，并可(ke)(ke)(ke)通(tong)過串口修(xiu)改授(shou)(shou)(shou)時(shi)(shi)(shi)方(fang)式(shi)。4．支持(chi)(chi)單(dan)星(xing)授(shou)(shou)(shou)時(shi)(shi)(shi)模式(shi)，適用(yong)于(yu)(yu)收(shou)星(xing)效果不佳的(de)(de)情況（訂貨時(shi)(shi)(shi)須說明），有屋(wu)頂和貼窗天線(xian)可(ke)(ke)(ke)供選擇。5．自(zi)保持(chi)(chi)能(neng)(neng)力(li)(li)強，裝置(zhi)(zhi)(zhi)收(shou)不到衛(wei)星(xing)信(xin)號后，自(zi)保持(chi)(chi)能(neng)(neng)力(li)(li)優于(yu)(yu)μS/min。6．多種配置(zhi)(zhi)(zhi)方(fang)法(fa)，易(yi)于(yu)(yu)管理和升級。7．工業級元件，高(gao)(gao)水準的(de)(de)電氣設計，高(gao)(gao)密度集成的(de)(de)電路結構，使裝置(zhi)(zhi)(zhi)擁有良好(hao)的(de)(de)電氣隔離和電磁(ci)屏蔽表現，整機無(wu)可(ke)(ke)(ke)調節器件，提高(gao)(gao)了(le)(le)產品抗干(gan)擾性(xing)(xing)能(neng)(neng)與可(ke)(ke)(ke)靠(kao)性(xing)(xing)保障。8．GPS北斗(dou)(dou)接收(shou)天線(xian)重(zhong)點考慮了(le)(le)防雷設計、穩定(ding)性(xing)(xing)設計、抗干(gan)擾設計，信(xin)號接收(shou)可(ke)(ke)(ke)靠(kao)性(xing)(xing)高(gao)(gao)，不受地域條件和環境的(de)(de)限(xian)制。9．串口信(xin)號輸出可(ke)(ke)(ke)編(bian)程(cheng)，按鍵(jian)設置(zhi)(zhi)(zhi),操作方(fang)便。10．機殼經防磁(ci)處理，抗干(gan)擾能(neng)(neng)力(li)(li)強。11．通(tong)過指示燈直觀反映(ying)裝置(zhi)(zhi)(zhi)的(de)(de)收(shou)星(xing)狀況。其他(ta)不少國家的(de)(de)定(ding)位系統已經兼容(rong)(rong)(rong)GPS，畢竟兼容(rong)(rong)(rong)的(de)(de)優勢(shi)確實太(tai)大(da)了(le)(le)。汕尾GPS北斗(dou)(dou)時(shi)(shi)(shi)鐘服務器

NTP網絡(luo)時(shi)(shi)(shi)鐘(zhong)服(fu)務器(qi)(qi)特點：1．精度高，同(tong)步快。2．雙CPU同(tong)時(shi)(shi)(shi)工(gong)作，32位(wei)CPU雙核處理(li)器(qi)(qi)，性(xing)能提(ti)高。3．支持單星授時(shi)(shi)(shi)模式，適用于收星效(xiao)果不佳的(de)(de)(de)情(qing)況。4．具備內部守(shou)時(shi)(shi)(shi)功能，24小時(shi)(shi)(shi)自(zi)保持能力不超過1mS。5．可同(tong)時(shi)(shi)(shi)為上萬臺服(fu)務器(qi)(qi)、工(gong)作站、DVR、NVR提(ti)供時(shi)(shi)(shi)間(jian)戳服(fu)務。6．支持WINDOWS、LINUX、UNIX、SUNSOLARIS、IBMAIX、HP-UX等(deng)操作系(xi)(xi)統及支持NTP協議的(de)(de)(de)路由器(qi)(qi)、交換(huan)機(ji)等(deng)網絡(luo)設(she)備。7．嵌入式系(xi)(xi)統，無硬盤和(he)風扇設(she)計(ji)(ji)，防震設(she)計(ji)(ji)，系(xi)(xi)統穩定可靠(kao)。8．工(gong)業(ye)級(ji)元件，高水準的(de)(de)(de)電(dian)(dian)氣設(she)計(ji)(ji)，高密度集成的(de)(de)(de)電(dian)(dian)路結(jie)構(gou)，使裝(zhuang)置(zhi)擁有電(dian)(dian)氣隔(ge)離(li)和(he)電(dian)(dian)磁(ci)屏(ping)蔽(bi)表現，整機(ji)無可調節器(qi)(qi)件，提(ti)高了裝(zhuang)置(zhi)的(de)(de)(de)抗干擾性(xing)能與可靠(kao)性(xing)保障。上海銳呈電(dian)(dian)氣有限公司是(shi)一家致力于北斗衛(wei)星同(tong)步時(shi)(shi)(shi)鐘(zhong),GPS同(tong)步時(shi)(shi)(shi)鐘(zhong),NTP時(shi)(shi)(shi)鐘(zhong)服(fu)務器(qi)(qi),時(shi)(shi)(shi)間(jian)同(tong)步服(fu)務器(qi)(qi),網絡(luo)授時(shi)(shi)(shi)服(fu)務器(qi)(qi),GPS對時(shi)(shi)(shi)裝(zhuang)置(zhi),GPS校(xiao)時(shi)(shi)(shi)服(fu)務器(qi)(qi),GPS北斗雙模時(shi)(shi)(shi)鐘(zhong)系(xi)(xi)統,子(zi)母(mu)鐘(zhong)系(xi)(xi)統的(de)(de)(de)研發、生(sheng)產和(he)銷售的(de)(de)(de)企業(ye)。鹽城GPS對時(shi)(shi)(shi)裝(zhuang)置(zhi)GPS時(shi)(shi)(shi)間(jian)同(tong)步系(xi)(xi)統的(de)(de)(de)網管可以(yi)提(ti)供服(fu)務器(qi)(qi)列表。

上海銳呈電氣有(you)限(xian)公司是一家(jia)致力(li)于(yu)北斗(dou)衛星同(tong)(tong)步(bu)(bu)(bu)時(shi)(shi)(shi)(shi)(shi)鐘(zhong)(zhong),GPS同(tong)(tong)步(bu)(bu)(bu)時(shi)(shi)(shi)(shi)(shi)鐘(zhong)(zhong),NTP時(shi)(shi)(shi)(shi)(shi)鐘(zhong)(zhong)服(fu)務(wu)器(qi)(qi),時(shi)(shi)(shi)(shi)(shi)間同(tong)(tong)步(bu)(bu)(bu)服(fu)務(wu)器(qi)(qi),網(wang)(wang)絡授時(shi)(shi)(shi)(shi)(shi)服(fu)務(wu)器(qi)(qi),GPS對(dui)時(shi)(shi)(shi)(shi)(shi)裝置(zhi),GPS校時(shi)(shi)(shi)(shi)(shi)服(fu)務(wu)器(qi)(qi),GPS北斗(dou)雙模時(shi)(shi)(shi)(shi)(shi)鐘(zhong)(zhong)系(xi)統(tong),子母(mu)鐘(zhong)(zhong)系(xi)統(tong)的(de)(de)研發(fa)(fa)、生產和銷售的(de)(de)企業。優(you)勢：管理員手工(gong)修改網(wang)(wang)絡設(she)備的(de)(de)系(xi)統(tong)時(shi)(shi)(shi)(shi)(shi)鐘(zhong)(zhong)不但(dan)工(gong)作量巨大，而(er)且(qie)不能保證(zheng)時(shi)(shi)(shi)(shi)(shi)鐘(zhong)(zhong)的(de)(de)精確性。NTP可(ke)以(yi)快速高精度地實現網(wang)(wang)絡中(zhong)設(she)備的(de)(de)時(shi)(shi)(shi)(shi)(shi)鐘(zhong)(zhong)同(tong)(tong)步(bu)(bu)(bu)，具有(you)以(yi)下優(you)勢：1）采(cai)用(yong)分層（Stratum）的(de)(de)方法(fa)來定義時(shi)(shi)(shi)(shi)(shi)鐘(zhong)(zhong)的(de)(de)準確性，可(ke)以(yi)迅速同(tong)(tong)步(bu)(bu)(bu)網(wang)(wang)絡中(zhong)各臺(tai)設(she)備的(de)(de)時(shi)(shi)(shi)(shi)(shi)間。2）支持(chi)訪問控制和MD5（MessageDigest5）驗證(zheng)。3）支持(chi)采(cai)用(yong)單(dan)播(bo)、組播(bo)或廣(guang)播(bo)方式發(fa)(fa)送協議報文。NTP工(gong)作模式1、服(fu)務(wu)器(qi)(qi)/客(ke)戶(hu)端模式服(fu)務(wu)器(qi)(qi)/客(ke)戶(hu)端模式只需要對(dui)客(ke)戶(hu)端進行配置(zhi)，由客(ke)戶(hu)端與(yu)服(fu)務(wu)器(qi)(qi)進行同(tong)(tong)步(bu)(bu)(bu)，而(er)服(fu)務(wu)器(qi)(qi)無(wu)法(fa)與(yu)客(ke)戶(hu)端進行同(tong)(tong)步(bu)(bu)(bu)。

NTP時(shi)(shi)(shi)(shi)(shi)間(jian)服務器工作原理(li)NTP(NetworkTimeProtocol)是(shi)用(yong)來(lai)使系(xi)統和(he)(he)一(yi)(yi)個(ge)精確的(de)(de)(de)(de)(de)時(shi)(shi)(shi)(shi)(shi)間(jian)源保持時(shi)(shi)(shi)(shi)(shi)間(jian)同(tong)步(bu)(bu)(bu)(bu)的(de)(de)(de)(de)(de)協議，NTP的(de)(de)(de)(de)(de)工作模(mo)式(shi)有三(san)種：客戶/服務器模(mo)式(shi)、主/被動對(dui)稱模(mo)式(shi)和(he)(he)廣播模(mo)式(shi)。本(ben)地(di)時(shi)(shi)(shi)(shi)(shi)鐘進程(cheng)：處理(li)由修正模(mo)塊(kuai)(kuai)得(de)出的(de)(de)(de)(de)(de)偏(pian)移量(liang)(liang)并(bing)且用(yong)NTP中算法對(dui)本(ben)地(di)時(shi)(shi)(shi)(shi)(shi)鐘的(de)(de)(de)(de)(de)相(xiang)位和(he)(he)頻率進行調節(jie)。傳送進程(cheng)：由和(he)(he)每個(ge)遠(yuan)端實體對(dui)應的(de)(de)(de)(de)(de)不同(tong)定時(shi)(shi)(shi)(shi)(shi)器觸發(fa)，用(yong)以(yi)從數據庫中收(shou)集信息(xi)(xi)，并(bing)向(xiang)遠(yuan)端實體發(fa)送NTP消(xiao)息(xi)(xi)。每個(ge)消(xiao)息(xi)(xi)包(bao)括發(fa)送時(shi)(shi)(shi)(shi)(shi)的(de)(de)(de)(de)(de)本(ben)地(di)時(shi)(shi)(shi)(shi)(shi)間(jian)戳(chuo)、前(qian)一(yi)(yi)次收(shou)到的(de)(de)(de)(de)(de)時(shi)(shi)(shi)(shi)(shi)間(jian)戳(chuo)，還有用(yong)來(lai)判斷同(tong)步(bu)(bu)(bu)(bu)網絡(luo)(luo)層(ceng)次結構以(yi)及管理(li)連接的(de)(de)(de)(de)(de)信息(xi)(xi)。接收(shou)進程(cheng)：接收(shou)NTP消(xiao)息(xi)(xi)，計算出遠(yuan)端時(shi)(shi)(shi)(shi)(shi)鐘和(he)(he)本(ben)地(di)時(shi)(shi)(shi)(shi)(shi)鐘之(zhi)間(jian)的(de)(de)(de)(de)(de)偏(pian)移量(liang)(liang)。修正模(mo)塊(kuai)(kuai)：處理(li)與各個(ge)遠(yuan)端實體之(zhi)間(jian)的(de)(de)(de)(de)(de)偏(pian)移量(liang)(liang)，并(bing)用(yong)NTP中的(de)(de)(de)(de)(de)一(yi)(yi)個(ge)算法選擇一(yi)(yi)個(ge)。銳呈電(dian)氣是(shi)一(yi)(yi)家致力于北斗(dou)(dou)衛星同(tong)步(bu)(bu)(bu)(bu)時(shi)(shi)(shi)(shi)(shi)鐘,GPS同(tong)步(bu)(bu)(bu)(bu)時(shi)(shi)(shi)(shi)(shi)鐘,NTP時(shi)(shi)(shi)(shi)(shi)鐘服務器,時(shi)(shi)(shi)(shi)(shi)間(jian)同(tong)步(bu)(bu)(bu)(bu)服務器,網絡(luo)(luo)授時(shi)(shi)(shi)(shi)(shi)服務器,GPS對(dui)時(shi)(shi)(shi)(shi)(shi)裝置,GPS校(xiao)時(shi)(shi)(shi)(shi)(shi)服務器,GPS北斗(dou)(dou)雙(shuang)模(mo)時(shi)(shi)(shi)(shi)(shi)鐘系(xi)統,子母鐘系(xi)統的(de)(de)(de)(de)(de)研發(fa)、生(sheng)產和(he)(he)銷(xiao)售的(de)(de)(de)(de)(de)企業(ye)。GPS時(shi)(shi)(shi)(shi)(shi)間(jian)同(tong)步(bu)(bu)(bu)(bu)系(xi)統可以(yi)通過按鍵可以(yi)調整系(xi)統配置。

CDMA的網(wang)絡(luo)(luo)運營需要高(gao)精度的時(shi)(shi)(shi)(shi)(shi)間(jian)同(tong)(tong)(tong)步(bu)。為(wei)此，每(mei)個CDMA基站(zhan)(zhan)都安裝了(le)GPS或北斗(dou)接收機同(tong)(tong)(tong)步(bu)于UTC時(shi)(shi)(shi)(shi)(shi)間(jian)，以同(tong)(tong)(tong)步(bu)基站(zhan)(zhan)設備(bei)和基站(zhan)(zhan)服務范圍內的CDMA用(yong)戶(hu)。同(tong)(tong)(tong)時(shi)(shi)(shi)(shi)(shi)，基站(zhan)(zhan)具有衛星信(xin)號監(jian)測功(gong)(gong)能(neng)和高(gao)精度時(shi)(shi)(shi)(shi)(shi)間(jian)保持功(gong)(gong)能(neng)，能(neng)為(wei)CDMA用(yong)戶(hu)提供(gong)可靠的時(shi)(shi)(shi)(shi)(shi)間(jian)精度保證。K-CDMA-A同(tong)(tong)(tong)步(bu)時(shi)(shi)(shi)(shi)(shi)鐘(zhong)（CDMA時(shi)(shi)(shi)(shi)(shi)鐘(zhong)、CDMA同(tong)(tong)(tong)步(bu)時(shi)(shi)(shi)(shi)(shi)鐘(zhong)、CDMA校時(shi)(shi)(shi)(shi)(shi)器、CDMA授時(shi)(shi)(shi)(shi)(shi)器、NTP時(shi)(shi)(shi)(shi)(shi)間(jian)服務器、NTP時(shi)(shi)(shi)(shi)(shi)鐘(zhong)同(tong)(tong)(tong)步(bu)服務器、網(wang)絡(luo)(luo)時(shi)(shi)(shi)(shi)(shi)間(jian)服務器、CDMA時(shi)(shi)(shi)(shi)(shi)鐘(zhong)服務器、CDMA網(wang)絡(luo)(luo)對(dui)時(shi)(shi)(shi)(shi)(shi)服務器）是(shi)我公司精心設計(ji)、自行(xing)研制開發的一款高(gao)性能(neng)機架式同(tong)(tong)(tong)步(bu)時(shi)(shi)(shi)(shi)(shi)鐘(zhong)，該產品集(ji)成了(le)CDMA接收模塊，可以通(tong)過CDMA網(wang)絡(luo)(luo)獲得(de)UTC時(shi)(shi)(shi)(shi)(shi)間(jian)信(xin)息(xi)，能(neng)非(fei)常方(fang)(fang)便(bian)部署在(zai)任何(he)有CDMA信(xin)號的地(di)方(fang)(fang)，尤其適(shi)(shi)合(he)部署在(zai)不方(fang)(fang)便(bian)布設室(shi)外(wai)(wai)GPS/北斗(dou)天線的網(wang)絡(luo)(luo)通(tong)訊機房(fang)內。另外(wai)(wai)，因為(wei)CDMA天線方(fang)(fang)便(bian)置于室(shi)內，可以完全(quan)消除雷(lei)電天氣(qi)對(dui)設備(bei)的破壞。K-CDMA-A同(tong)(tong)(tong)步(bu)時(shi)(shi)(shi)(shi)(shi)鐘(zhong)采用(yong)表(biao)面貼裝技術生產，以高(gao)速芯片進行(xing)控制，具有精度高(gao)、穩定性好、功(gong)(gong)能(neng)強、無積累誤差、不受地(di)域氣(qi)候等環(huan)境條件(jian)限制、性價比高(gao)、操作簡單、免維(wei)護等特點(dian)，適(shi)(shi)合(he)無人值守。K-CDMA-A同(tong)(tong)(tong)步(bu)時(shi)(shi)(shi)(shi)(shi)鐘(zhong)有2路RS232串行(xing)信(xin)號，2路RS422/485串行(xing)信(xin)號，1路TTL脈沖信(xin)號，可以適(shi)(shi)應(ying)各種(zhong)不同(tong)(tong)(tong)設備(bei)的對(dui)時(shi)(shi)(shi)(shi)(shi)需要。GPS時(shi)(shi)(shi)(shi)(shi)間(jian)同(tong)(tong)(tong)步(bu)系統具有直觀的用(yong)戶(hu)友好型前面板操作。潮州GPS衛星鐘(zhong)

傳統GPS子(zi)母(mu)鐘(zhong)系統顯(xian)示時(shi)間的(de)特點，克服(fu)了原GPS子(zi)母(mu)時(shi)鐘(zhong)系統使(shi)用(yong)(yong)安裝受使(shi)用(yong)(yong)地點條(tiao)件限制、成本高的(de)弊端。汕尾GPS北斗時(shi)鐘(zhong)服(fu)務(wu)器

M-GPS系(xi)列迷你GPS時(shi)(shi)(shi)(shi)鐘(zhong)(zhong)A型(xing)(xing)(GPS授時(shi)(shi)(shi)(shi)器(qi)，串(chuan)口(kou)時(shi)(shi)(shi)(shi)間服務器(qi)，GPS對時(shi)(shi)(shi)(shi)裝置(zhi)，GPS衛星(xing)同(tong)步(bu)時(shi)(shi)(shi)(shi)鐘(zhong)(zhong)，串(chuan)口(kou)校時(shi)(shi)(shi)(shi))是我(wo)公(gong)司(si)精(jing)心設計、自(zi)行研制開發的一款高(gao)性能、微功耗、小體積的GPS同(tong)步(bu)時(shi)(shi)(shi)(shi)鐘(zhong)(zhong)，該裝置(zhi)采(cai)用(yong)進(jin)口(kou)高(gao)精(jing)度授時(shi)(shi)(shi)(shi)型(xing)(xing)GPSOEM模塊和精(jing)密時(shi)(shi)(shi)(shi)間同(tong)步(bu)技術(shu)，具有(you)微功耗、體積小、授時(shi)(shi)(shi)(shi)精(jing)度高(gao)、經濟實用(yong)、免維(wei)護(hu)等特點。M-GPS系(xi)列迷你GPS時(shi)(shi)(shi)(shi)鐘(zhong)(zhong)A型(xing)(xing)(GPS授時(shi)(shi)(shi)(shi)器(qi)，串(chuan)口(kou)時(shi)(shi)(shi)(shi)間服務器(qi)，GPS對時(shi)(shi)(shi)(shi)裝置(zhi)，GPS衛星(xing)同(tong)步(bu)時(shi)(shi)(shi)(shi)鐘(zhong)(zhong)，串(chuan)口(kou)校時(shi)(shi)(shi)(shi))有(you)1路(lu)(lu)RS232或RS422/485串(chuan)行信號，1路(lu)(lu)空接點脈(mo)沖信號，1路(lu)(lu)TTL脈(mo)沖信號，1路(lu)(lu)RS422/485脈(mo)沖信號（信號可(ke)編程輸出1PPS/1PPM/1PPH、正(zheng)/負脈(mo)沖），可(ke)以適應各種不同(tong)設備的對時(shi)(shi)(shi)(shi)需要，廣泛(fan)應用(yong)于電力、金融、通信、交通、廣電、安(an)防、石化、冶金、水利、、醫療、教育、機關、IT等領域(yu)。汕尾GPS北斗(dou)時(shi)(shi)(shi)(shi)鐘(zhong)(zhong)服務器(qi)

上海銳(rui)(rui)呈電氣(qi)有限公(gong)司是我國(guo)GPS北(bei)斗同(tong)步時(shi)鐘，NTP時(shi)間服務器，GPS校(xiao)時(shi)器，北(bei)斗授時(shi)系統(tong)專業化較早的(de)(de)私營有限責任公(gong)司之一(yi)，公(gong)司成立于(yu)2007-04-18，旗下(xia)銳(rui)(rui)呈，已經具有一(yi)定的(de)(de)業內水平(ping)。銳(rui)(rui)呈電氣(qi)致(zhi)力(li)于(yu)構建(jian)安全、防(fang)護(hu)自(zi)主創新的(de)(de)競(jing)爭力(li)，將憑借高(gao)精尖的(de)(de)系列產品與解決方案，加(jia)速推進(jin)全國(guo)安全、防(fang)護(hu)產品競(jing)爭力(li)的(de)(de)發(fa)展。

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