GPS定(ding)(ding)位中，作為觀(guan)測(ce)(ce)(ce)目標的(de)(de)(de)(de)(de)衛(wei)星(xing)(xing)以每(mei)秒幾公里的(de)(de)(de)(de)(de)速(su)(su)度運動，對(dui)觀(guan)測(ce)(ce)(ce)者而(er)言，衛(wei)星(xing)(xing)的(de)(de)(de)(de)(de)位置(zhi)(zhi)（方向(xiang)、距(ju)離(li)、高度）和速(su)(su)度都(dou)在不斷的(de)(de)(de)(de)(de)迅速(su)(su)變化。因(yin)此，在衛(wei)星(xing)(xing)測(ce)(ce)(ce)量(liang)中，站(zhan)對(dui)衛(wei)星(xing)(xing)進行定(ding)(ding)軌時(shi)(shi)，在給(gei)出(chu)衛(wei)星(xing)(xing)位置(zhi)(zhi)的(de)(de)(de)(de)(de)同時(shi)(shi)，必(bi)須(xu)給(gei)出(chu)對(dui)應(ying)(ying)(ying)的(de)(de)(de)(de)(de)瞬(shun)間(jian)(jian)時(shi)(shi)刻(ke)。當要(yao)求(qiu)GPS衛(wei)星(xing)(xing)位置(zhi)(zhi)的(de)(de)(de)(de)(de)誤(wu)差(cha)小(xiao)(xiao)于(yu)(yu)1cm時(shi)(shi)，相應(ying)(ying)(ying)的(de)(de)(de)(de)(de)時(shi)(shi)刻(ke)誤(wu)差(cha)應(ying)(ying)(ying)小(xiao)(xiao)于(yu)(yu)。要(yao)準確地(di)測(ce)(ce)(ce)定(ding)(ding)觀(guan)測(ce)(ce)(ce)站(zhan)至衛(wei)星(xing)(xing)的(de)(de)(de)(de)(de)距(ju)離(li)，必(bi)須(xu)精確地(di)測(ce)(ce)(ce)定(ding)(ding)信(xin)號的(de)(de)(de)(de)(de)傳播時(shi)(shi)間(jian)(jian)。如果要(yao)求(qiu)距(ju)離(li)誤(wu)差(cha)小(xiao)(xiao)于(yu)(yu)1cm時(shi)(shi)，則信(xin)號傳播時(shi)(shi)間(jian)(jian)的(de)(de)(de)(de)(de)測(ce)(ce)(ce)定(ding)(ding)誤(wu)差(cha)應(ying)(ying)(ying)小(xiao)(xiao)于(yu)(yu)0。03ns。因(yin)此，任何一(yi)個(ge)觀(guan)測(ce)(ce)(ce)量(liang)都(dou)必(bi)須(xu)給(gei)定(ding)(ding)取得該觀(guan)測(ce)(ce)(ce)量(liang)的(de)(de)(de)(de)(de)時(shi)(shi)刻(ke)。為了保證觀(guan)測(ce)(ce)(ce)量(liang)的(de)(de)(de)(de)(de)精度，對(dui)觀(guan)測(ce)(ce)(ce)時(shi)(shi)刻(ke)要(yao)有(you)相應(ying)(ying)(ying)的(de)(de)(de)(de)(de)精度要(yao)求(qiu)。原子(zi)時(shi)(shi)的(de)(de)(de)(de)(de)秒長(chang)被定(ding)(ding)義為銫原子(zi)Cs133基態的(de)(de)(de)(de)(de)兩個(ge)超(chao)精細能級間(jian)(jian)躍遷輻射振(zhen)蕩周所持續的(de)(de)(de)(de)(de)時(shi)(shi)間(jian)(jian)。原子(zi)時(shi)(shi)的(de)(de)(de)(de)(de)起點(dian)，按(an)國際協定(ding)(ding)取為1958年1月1日0時(shi)(shi)0秒。北斗接收(shou)機(ji)與GPS接收(shou)機(ji)用于(yu)(yu)提供與標準準時(shi)(shi)間(jian)(jian)同步的(de)(de)(de)(de)(de)時(shi)(shi)鐘。CDMA網(wang)絡對(dui)時(shi)(shi)服務器

CDMA網絡時(shi)(shi)(shi)(shi)鐘的(de)性能指標。2.兩種(zhong)輸(shu)出模(mo)式：a.授時(shi)(shi)(shi)(shi)信號一直(zhi)輸(shu)出；b.當GPS北斗(dou)有效時(shi)(shi)(shi)(shi)才(cai)輸(shu)出。兩種(zhong)模(mo)式用戶(hu)可(ke)(ke)通過鍵盤設置。3.電源：交直(zhi)流(liu)電220V±22V。4.功耗：小于等于15W。5.工(gong)作環境溫度:-20℃～70℃，工(gong)作環境濕度:-45%～85%。6.通道(dao)：24通道(dao)接(jie)收。7.接(jie)收頻率：GPS:，北斗(dou)：±4MHz。8.接(jie)收靈敏度:捕獲<-130dBm，<-130dBm。9.時(shi)(shi)(shi)(shi)間:20秒(miao)～120秒(miao)。10.對時(shi)(shi)(shi)(shi)精度：脈沖、B碼(ma)：μS，串口：10μS。：支持協議NTP,SNTP,Web,Telnet,ARP,UDP,TCP,IP,ICMP,SNMP,MD5,DHCP和TFTP；吞吐(tu)量：滿足每(mei)秒(miao)10000次時(shi)(shi)(shi)(shi)間請求；時(shi)(shi)(shi)(shi)間準(zhun)確度：12.平(ping)(ping)均(jun)無(wu)故障(zhang)間隔時(shi)(shi)(shi)(shi)間(MTBF)≥150000小時(shi)(shi)(shi)(shi)；平(ping)(ping)均(jun)維修時(shi)(shi)(shi)(shi)間（MTTR）：一般(ban)不大于30分,正常使(shi)用條件下無(wu)須維護。北斗(dou)衛星時(shi)(shi)(shi)(shi)鐘服務(wu)器在任(ren)何可(ke)(ke)以使(shi)用聯通CDMA手機的(de)地(di)方均(jun)可(ke)(ke)使(shi)用CDMA數碼(ma)時(shi)(shi)(shi)(shi)鐘顯示標準(zhun)時(shi)(shi)(shi)(shi)間。

隨(sui)著目(mu)前(qian)電力系(xi)(xi)統(tong)統(tong)一時(shi)(shi)(shi)(shi)(shi)(shi)鐘(zhong)的(de)(de)(de)(de)推廣應用，以(yi)及(ji)行(xing)業(ye)標(biao)(biao)準對(dui)(dui)時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)同(tong)(tong)步(bu)系(xi)(xi)統(tong)提出的(de)(de)(de)(de)各項(xiang)新技(ji)術要求，驗(yan)(yan)證一個(ge)時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)同(tong)(tong)步(bu)系(xi)(xi)統(tong)是否符合設(she)計指標(biao)(biao)成為一個(ge)不(bu)可(ke)(ke)(ke)忽視(shi)的(de)(de)(de)(de)問題。K602手持式(shi)GPS時(shi)(shi)(shi)(shi)(shi)(shi)鐘(zhong)測(ce)試(shi)儀是上(shang)海銳呈電氣有限公司研制的(de)(de)(de)(de)一款(kuan)功能齊(qi)全、性(xing)能可(ke)(ke)(ke)靠、高(gao)性(xing)價比的(de)(de)(de)(de)手持式(shi)時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)頻率比對(dui)(dui)測(ce)試(shi)設(she)備，采用時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)頻率測(ce)試(shi)技(ji)術，體現了測(ce)量(liang)的(de)(de)(de)(de)高(gao)精(jing)度、可(ke)(ke)(ke)靠性(xing)、方(fang)便性(xing)和直(zhi)觀性(xing)，為電力系(xi)(xi)統(tong)時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)同(tong)(tong)步(bu)系(xi)(xi)統(tong)及(ji)二次(ci)設(she)備SOE的(de)(de)(de)(de)現場檢測(ce)、校驗(yan)(yan)、驗(yan)(yan)收提供了有效而便捷的(de)(de)(de)(de)解(jie)決方(fang)案，同(tong)(tong)時(shi)(shi)(shi)(shi)(shi)(shi)可(ke)(ke)(ke)用于實驗(yan)(yan)室對(dui)(dui)時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)頻率產品進(jin)行(xing)檢測(ce)和標(biao)(biao)定，也可(ke)(ke)(ke)用于時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)頻率產品廠家對(dui)(dui)產品的(de)(de)(de)(de)檢驗(yan)(yan)和測(ce)試(shi)。K602手持式(shi)GPS時(shi)(shi)(shi)(shi)(shi)(shi)鐘(zhong)測(ce)試(shi)儀可(ke)(ke)(ke)對(dui)(dui)目(mu)前(qian)各種類型接(jie)口的(de)(de)(de)(de)授時(shi)(shi)(shi)(shi)(shi)(shi)信(xin)號(hao)進(jin)行(xing)測(ce)量(liang)，測(ce)試(shi)范(fan)圍覆蓋(gai)了目(mu)前(qian)應用的(de)(de)(de)(de)包(bao)括脈(mo)沖，B碼，DCF77，報文，網絡等各種軟對(dui)(dui)時(shi)(shi)(shi)(shi)(shi)(shi)、硬對(dui)(dui)時(shi)(shi)(shi)(shi)(shi)(shi)類型，同(tong)(tong)時(shi)(shi)(shi)(shi)(shi)(shi)儀器還能對(dui)(dui)多個(ge)輸(shu)入的(de)(de)(de)(de)外同(tong)(tong)步(bu)源進(jin)行(xing)相(xiang)互(hu)間(jian)(jian)(jian)的(de)(de)(de)(de)時(shi)(shi)(shi)(shi)(shi)(shi)延測(ce)量(liang)，例如可(ke)(ke)(ke)用于分析多個(ge)衛星系(xi)(xi)統(tong)間(jian)(jian)(jian)的(de)(de)(de)(de)時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)差(cha)、秒沿差(cha)等，以(yi)便在采用不(bu)同(tong)(tong)參考(kao)系(xi)(xi)統(tong)時(shi)(shi)(shi)(shi)(shi)(shi)作為選擇(ze)和分析的(de)(de)(de)(de)依據。

銳呈北(bei)斗網(wang)(wang)絡時(shi)(shi)(shi)鐘服(fu)(fu)務器(qi)在溫州市永嘉縣(xian)行(xing)政中(zhong)心(xin)成(cheng)功(gong)投(tou)運北(bei)斗網(wang)(wang)絡時(shi)(shi)(shi)鐘服(fu)(fu)務器(qi)具(ju)有主時(shi)(shi)(shi)鐘和擴展設(she)備(bei)的(de)雙重功(gong)能，采(cai)用靈(ling)活(huo)插卡(ka)式設(she)計。具(ju)體功(gong)能特點如下：1.配(pei)置(zhi)(zhi)靈(ling)活(huo)，支(zhi)持熱插拔功(gong)能；2.具(ju)有鐘控，高精度的(de)保持功(gong)能，可(ke)選配(pei)增加銣原(yuan)子鐘：3.雙電(dian)源(yuan)冗余熱備(bei)份；4.支(zhi)持4路(lu)(lu)輸入板(ban)(ban)卡(ka)，可(ke)分別配(pei)置(zhi)(zhi)為(wei)北(bei)斗衛星(xing)接(jie)(jie)收板(ban)(ban)、GPS接(jie)(jie)收板(ban)(ban)、B碼輸入板(ban)(ban)或NTP網(wang)(wang)絡板(ban)(ban)等；5.支(zhi)持7路(lu)(lu)輸出(chu)板(ban)(ban)卡(ka)，可(ke)以支(zhi)持多達(da)84路(lu)(lu)校時(shi)(shi)(shi)接(jie)(jie)口(kou)；6.設(she)備(bei)網(wang)(wang)管(guan)：通過WEB方式對(dui)設(she)備(bei)進行(xing)遠(yuan)程管(guan)理(li)，完成(cheng)對(dui)設(she)備(bei)的(de)衛星(xing)接(jie)(jie)收狀況、設(she)備(bei)工(gong)作狀態、參(can)數設(she)置(zhi)(zhi)和用戶等信息進行(xing)管(guan)理(li)。7.全模塊(kuai)化(hua)結(jie)構設(she)計，其輸入、輸出(chu)、電(dian)源(yuan)等均(jun)可(ke)靈(ling)活(huo)配(pei)置(zhi)(zhi)，并(bing)具(ju)有豐富的(de)各類(lei)模塊(kuai)及板(ban)(ban)卡(ka)供選擇(ze)，對(dui)時(shi)(shi)(shi)信號(hao)的(de)種類(lei)和數量都(dou)可(ke)根據需要靈(ling)活(huo)選擇(ze)配(pei)置(zhi)(zhi)。北(bei)斗網(wang)(wang)絡時(shi)(shi)(shi)鐘服(fu)(fu)務器(qi)的(de)技(ji)術參(can)數1.網(wang)(wang)絡協議(RFC1119&1305)SNTP(RFC2030)Telnet（RFC854）FTP（RFC959）2.輸入/輸出(chu)接(jie)(jie)口(kou)網(wang)(wang)口(kou)：RJ-45，4路(lu)(lu)，10/100自(zi)適應以太(tai)網(wang)(wang)接(jie)(jie)口(kou)Console：RJ-45，1路(lu)(lu)，RS232電(dian)平GPS、北(bei)斗天(tian)線輸入：BNC。GPS衛星(xing)校時(shi)(shi)(shi)設(she)備(bei)TV顯(xian)示(shi)輸出(chu)，顯(xian)示(shi)頁面可(ke)設(she)置(zhi)(zhi)，滾動字幕。可(ke)作為(wei)電(dian)視臺(tai)節目停播時(shi)(shi)(shi)的(de)畫面播出(chu)。

銳呈電氣(qi)是一家致力于北斗(dou)衛(wei)星同步時鐘(zhong)(zhong)(zhong),GPS同步時鐘(zhong)(zhong)(zhong),NTP時鐘(zhong)(zhong)(zhong)服務(wu)(wu)器(qi),時間同步服務(wu)(wu)器(qi),網(wang)(wang)絡授(shou)時服務(wu)(wu)器(qi),GPS對時裝(zhuang)置(zhi)(zhi)(zhi)(zhi),GPS校(xiao)時服務(wu)(wu)器(qi),GPS北斗(dou)雙模時鐘(zhong)(zhong)(zhong)系統,子(zi)母(mu)鐘(zhong)(zhong)(zhong)系統的(de)研發(fa)、生產和(he)(he)銷售的(de)企業(ye)。具(ju)體功(gong)能特點如下：1.配(pei)置(zhi)(zhi)(zhi)(zhi)靈活(huo)，支持(chi)(chi)熱插拔功(gong)能；2.具(ju)有鐘(zhong)(zhong)(zhong)控，高精度的(de)保(bao)持(chi)(chi)功(gong)能，可(ke)(ke)選(xuan)配(pei)增加銣(ru)原子(zi)鐘(zhong)(zhong)(zhong)：3.雙電源(yuan)冗余熱備(bei)份；4.支持(chi)(chi)4路(lu)輸(shu)入(ru)(ru)板(ban)(ban)卡(ka)，可(ke)(ke)分(fen)別配(pei)置(zhi)(zhi)(zhi)(zhi)為北斗(dou)衛(wei)星接收(shou)板(ban)(ban)、GPS接收(shou)板(ban)(ban)、B碼輸(shu)入(ru)(ru)板(ban)(ban)或NTP網(wang)(wang)絡板(ban)(ban)等；5.支持(chi)(chi)7路(lu)輸(shu)出板(ban)(ban)卡(ka)，可(ke)(ke)以支持(chi)(chi)多達84路(lu)校(xiao)時接口；6.設(she)(she)備(bei)網(wang)(wang)管：通過WEB方式(shi)對設(she)(she)備(bei)進行遠程管理，完成(cheng)對設(she)(she)備(bei)的(de)衛(wei)星接收(shou)狀(zhuang)況、設(she)(she)備(bei)工作狀(zhuang)態、參(can)數設(she)(she)置(zhi)(zhi)(zhi)(zhi)和(he)(he)用(yong)戶等信(xin)(xin)息進行管理。7.全模塊化(hua)結(jie)構設(she)(she)計，其輸(shu)入(ru)(ru)、輸(shu)出、電源(yuan)等均(jun)可(ke)(ke)靈活(huo)配(pei)置(zhi)(zhi)(zhi)(zhi)，并(bing)具(ju)有豐富的(de)各(ge)類(lei)模塊及(ji)板(ban)(ban)卡(ka)供選(xuan)擇，對時信(xin)(xin)號的(de)種(zhong)類(lei)和(he)(he)數量都可(ke)(ke)根據需要靈活(huo)選(xuan)擇配(pei)置(zhi)(zhi)(zhi)(zhi)。GPS電子(zi)時鐘(zhong)(zhong)(zhong)我們(men)建議使用(yong)的(de)是gps和(he)(he)北斗(dou)兩種(zhong)衛(wei)星信(xin)(xin)號.梅州GPS衛(wei)星鐘(zhong)(zhong)(zhong)

在當(dang)時(shi)的(de)同步通信系統中(zhong)，我們會找到一個時(shi)鐘源；CDMA網絡對時(shi)服務器

K801主(zhu)時(shi)鐘(zhong)采(cai)用表(biao)面(mian)貼裝(zhuang)技術生產，大規模(mo)(mo)(mo)集成電路設計(ji)，以高速芯(xin)片(pian)進行控(kong)制，具(ju)(ju)有(you)精度高、穩定(ding)性好、功(gong)能強、無積(ji)累誤差、不(bu)受地(di)域氣候等(deng)環境(jing)條件限制、性價比(bi)高、操(cao)作簡單等(deng)特(te)點，全(quan)自動智能化(hua)運行，免(mian)操(cao)作維護，適合(he)無人值守。K801主(zhu)時(shi)鐘(zhong)采(cai)用全(quan)模(mo)(mo)(mo)塊化(hua)結構設計(ji)，其輸(shu)入、輸(shu)出、電源等(deng)均(jun)可靈(ling)活(huo)配(pei)置(zhi)，并(bing)具(ju)(ju)有(you)豐(feng)富(fu)的各(ge)類模(mo)(mo)(mo)塊及板卡供選擇(ze)（特(te)殊(shu)需(xu)求可提供定(ding)制服(fu)務），對時(shi)信號的種(zhong)類和數量都可根據需(xu)要靈(ling)活(huo)選擇(ze)配(pei)置(zhi)。裝(zhuang)置(zhi)有(you)標準(zhun)RS232、RS422/485、脈沖(chong)、IRIG-B、DCF77、NTP/SNTP、PTP協議(yi)時(shi)間輸(shu)出等(deng)接口形式，可以適應各(ge)種(zhong)不(bu)同設備的對時(shi)需(xu)要，廣泛應用于電力、金(jin)融(rong)、通信、交通、廣電、安防(fang)、石化(hua)、冶金(jin)、水利、、醫療(liao)、教育、機關、IT等(deng)領域。CDMA網絡(luo)對時(shi)服(fu)務器

上(shang)(shang)海銳呈(cheng)電(dian)氣(qi)有(you)(you)限公(gong)司成(cheng)(cheng)立于(yu)2007-04-18，位(wei)于(yu)翔殷路128號，公(gong)司自成(cheng)(cheng)立以(yi)來通(tong)過規范化運營(ying)和(he)高質(zhi)量服務(wu)，贏得了客戶(hu)及社會的(de)(de)一致認可和(he)好評。本公(gong)司主(zhu)要從(cong)事(shi)GPS北(bei)斗(dou)(dou)同(tong)步時(shi)(shi)(shi)(shi)(shi)(shi)鐘(zhong)，NTP時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)服務(wu)器(qi)(qi)(qi)(qi)，GPS校時(shi)(shi)(shi)(shi)(shi)(shi)器(qi)(qi)(qi)(qi)，北(bei)斗(dou)(dou)授(shou)時(shi)(shi)(shi)(shi)(shi)(shi)系(xi)統(tong)領域內的(de)(de)GPS北(bei)斗(dou)(dou)同(tong)步時(shi)(shi)(shi)(shi)(shi)(shi)鐘(zhong)，NTP時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)服務(wu)器(qi)(qi)(qi)(qi)，GPS校時(shi)(shi)(shi)(shi)(shi)(shi)器(qi)(qi)(qi)(qi)，北(bei)斗(dou)(dou)授(shou)時(shi)(shi)(shi)(shi)(shi)(shi)系(xi)統(tong)等產品的(de)(de)研(yan)(yan)究(jiu)開發。擁有(you)(you)一支(zhi)研(yan)(yan)發能力強、成(cheng)(cheng)果(guo)豐碩(shuo)的(de)(de)技術(shu)隊伍(wu)。公(gong)司先后與行業上(shang)(shang)游與下游企業建立了長期(qi)合作的(de)(de)關系(xi)。依托(tuo)成(cheng)(cheng)熟(shu)的(de)(de)產品資源(yuan)和(he)渠道資源(yuan)，向全國生產、銷(xiao)售GPS北(bei)斗(dou)(dou)同(tong)步時(shi)(shi)(shi)(shi)(shi)(shi)鐘(zhong)，NTP時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)服務(wu)器(qi)(qi)(qi)(qi)，GPS校時(shi)(shi)(shi)(shi)(shi)(shi)器(qi)(qi)(qi)(qi)，北(bei)斗(dou)(dou)授(shou)時(shi)(shi)(shi)(shi)(shi)(shi)系(xi)統(tong)產品，經過多(duo)(duo)年的(de)(de)沉(chen)淀和(he)發展已(yi)經形成(cheng)(cheng)了科(ke)學的(de)(de)管理(li)制度(du)、豐富(fu)的(de)(de)產品類型(xing)。上(shang)(shang)海銳呈(cheng)電(dian)氣(qi)有(you)(you)限公(gong)司以(yi)先進(jin)工藝為(wei)基礎、以(yi)產品質(zhi)量為(wei)根(gen)本、以(yi)技術(shu)創(chuang)新為(wei)動力，開發并推出多(duo)(duo)項具(ju)有(you)(you)競(jing)爭力的(de)(de)GPS北(bei)斗(dou)(dou)同(tong)步時(shi)(shi)(shi)(shi)(shi)(shi)鐘(zhong)，NTP時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)服務(wu)器(qi)(qi)(qi)(qi)，GPS校時(shi)(shi)(shi)(shi)(shi)(shi)器(qi)(qi)(qi)(qi)，北(bei)斗(dou)(dou)授(shou)時(shi)(shi)(shi)(shi)(shi)(shi)系(xi)統(tong)產品，確(que)保了在GPS北(bei)斗(dou)(dou)同(tong)步時(shi)(shi)(shi)(shi)(shi)(shi)鐘(zhong)，NTP時(shi)(shi)(shi)(shi)(shi)(shi)間(jian)(jian)服務(wu)器(qi)(qi)(qi)(qi)，GPS校時(shi)(shi)(shi)(shi)(shi)(shi)器(qi)(qi)(qi)(qi)，北(bei)斗(dou)(dou)授(shou)時(shi)(shi)(shi)(shi)(shi)(shi)系(xi)統(tong)市場的(de)(de)優勢。

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