航站楼时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)是(shi)航空交通(tong)重(zhong)要(yao)的(de)(de)(de)(de)组成(cheng)部(bu)(bu)分之一，其(qi)(qi)(qi)主要(yao)作用是(shi)为乘客和工(gong)作人员提(ti)(ti)供(gong)(gong)准(zhun)(zhun)确(que)的(de)(de)(de)(de)时(shi)(shi)(shi)(shi)(shi)(shi)间(jian)(jian)信(xin)(xin)息(xi)，同(tong)时(shi)(shi)(shi)(shi)(shi)(shi)时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)要(yao)为其(qi)(qi)(qi)他子(zi)(zi)系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)提(ti)(ti)供(gong)(gong)统(tong)(tong)一的(de)(de)(de)(de)时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)信(xin)(xin)号(hao)，使(shi)各(ge)系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)的(de)(de)(de)(de)定(ding)时(shi)(shi)(shi)(shi)(shi)(shi)集中(zhong)同(tong)步，在整(zheng)个机场(chang)(chang)系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)中(zhong)使(shi)用相同(tong)的(de)(de)(de)(de)定(ding)时(shi)(shi)(shi)(shi)(shi)(shi)标准(zhun)(zhun)。候机厅及(ji)售票厅位置(zhi)的(de)(de)(de)(de)时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)可以(yi)为旅客提(ti)(ti)供(gong)(gong)准(zhun)(zhun)确(que)的(de)(de)(de)(de)时(shi)(shi)(shi)(shi)(shi)(shi)间(jian)(jian)信(xin)(xin)息(xi)；各(ge)办公室内及(ji)其(qi)(qi)(qi)它停机场(chang)(chang)内的(de)(de)(de)(de)时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)可以(yi)为工(gong)作人员提(ti)(ti)供(gong)(gong)准(zhun)(zhun)确(que)的(de)(de)(de)(de)时(shi)(shi)(shi)(shi)(shi)(shi)间(jian)(jian)信(xin)(xin)息(xi)；向(xiang)其(qi)(qi)(qi)它机场(chang)(chang)通(tong)信(xin)(xin)子(zi)(zi)系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)提(ti)(ti)供(gong)(gong)的(de)(de)(de)(de)时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)信(xin)(xin)息(xi)为飞机运行提(ti)(ti)供(gong)(gong)了(le)标准(zhun)(zhun)的(de)(de)(de)(de)时(shi)(shi)(shi)(shi)(shi)(shi)间(jian)(jian)，保证了(le)机场(chang)(chang)通(tong)信(xin)(xin)系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)运行的(de)(de)(de)(de)准(zhun)(zhun)时(shi)(shi)(shi)(shi)(shi)(shi)，安(an)全。时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)子(zi)(zi)系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)能(neng)(neng)够向(xiang)机场(chang)(chang)全部(bu)(bu)通(tong)信(xin)(xin)子(zi)(zi)系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)提(ti)(ti)供(gong)(gong)准(zhun)(zhun)确(que)的(de)(de)(de)(de)时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)信(xin)(xin)号(hao)。母钟(zhong)(zhong)以(yi)GPS卫星定(ding)位系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)所发(fa)(fa)的(de)(de)(de)(de)UTC时(shi)(shi)(shi)(shi)(shi)(shi)间(jian)(jian)为准(zhun)(zhun)，辅以(yi)铷原子(zi)(zi)钟(zhong)(zhong)，在GPS信(xin)(xin)号(hao)丢失时(shi)(shi)(shi)(shi)(shi)(shi)，还(hai)能(neng)(neng)长(zhang)时(shi)(shi)(shi)(shi)(shi)(shi)间(jian)(jian)为系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)提(ti)(ti)供(gong)(gong)准(zhun)(zhun)确(que)时(shi)(shi)(shi)(shi)(shi)(shi)间(jian)(jian)。母钟(zhong)(zhong)向(xiang)其(qi)(qi)(qi)对(dui)应的(de)(de)(de)(de)子(zi)(zi)钟(zhong)(zhong)发(fa)(fa)送时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)信(xin)(xin)号(hao)；同(tong)时(shi)(shi)(shi)(shi)(shi)(shi)各(ge)路时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)信(xin)(xin)号(hao)均(jun)需上(shang)传(chuan)至时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)系(xi)(xi)(xi)(xi)(xi)统(tong)(tong)的(de)(de)(de)(de)监控(kong)中(zhong)心，使(shi)之可以(yi)完成(cheng)对(dui)全场(chang)(chang)所有时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)工(gong)作状态(tai)的(de)(de)(de)(de)监测和控(kong)制，并可在相应的(de)(de)(de)(de)管理客户机上(shang)完成(cheng)各(ge)种需要(yao)的(de)(de)(de)(de)管理及(ji)配置(zhi)功能(neng)(neng)．成(cheng)都引众成(cheng)立十(shi)五年来(lai)，取得国家(jia)和成(cheng)都市各(ge)种成(cheng)果奖(jiang)数(shu)十(shi)项，有四(si)川省科学奖(jiang)励证书(shu)，软件(jian)企业认(ren)定(ding)证书(shu)。四(si)川数(shu)字时(shi)(shi)(shi)(shi)(shi)(shi)钟(zhong)(zhong)批发(fa)(fa)

系统组(zu)成1、YZ-9811时(shi)(shi)间(jian)服(fu)务器(qi)YZ-9811时(shi)(shi)间(jian)服(fu)务器(qi)可通过(guo)(guo)北斗GPS信号(hao)获取标准(zhun)(zhun)时(shi)(shi)间(jian)，通过(guo)(guo)NTP协议(yi)对局域网的(de)(de)计算机、服(fu)务器(qi)或(huo)其他设备(bei)提供同(tong)(tong)(tong)步服(fu)务。产品已广泛(fan)应用(yong)于学校、交通、企业、公检(jian)法等部(bu)门。2、子(zi)钟(zhong)数显钟(zhong)内置(zhi)无线接(jie)收模块，可通过(guo)(guo)信号(hao)实现同(tong)(tong)(tong)步。每(mei)次(ci)上电(dian)自(zi)动(dong)同(tong)(tong)(tong)步，每(mei)日自(zi)动(dong)同(tong)(tong)(tong)步。其主要(yao)功(gong)能(neng)包括：（1）通过(guo)(guo)与基(ji)(ji)站同(tong)(tong)(tong)步自(zi)动(dong)消(xiao)除(chu)走时(shi)(shi)积(ji)累(lei)误差(cha)，无需(xu)人(ren)工调整；（2）时(shi)(shi)分秒(miao)年月日星(xing)期显示，红(hong)色LED；（3）内置(zhi)电(dian)池，在停电(dian)情况下(xia)，可保持内部(bu)时(shi)(shi)钟(zhong)运行数周(zhou)；（4）采用(yong)EMI电(dian)源(yuan)滤波器(qi)，不受电(dian)源(yuan)波动(dong)影响(xiang)。成都电(dian)子(zi)数字时(shi)(shi)钟(zhong)设计引众(zhong)子(zi)母(mu)钟(zhong)在基(ji)(ji)准(zhun)(zhun)信号(hao)正常(chang)的(de)(de)情况下(xia)，选(xuan)配的(de)(de)铷原子(zi)钟(zhong)，30年自(zi)走时(shi)(shi)误差(cha)不会超过(guo)(guo)3毫秒(miao)，精度高达20nS。

设备选(xuan)型表(biao)序(xu)号名(ming)(ming)称说明1北斗(dou)主(zhu)时(shi)钟(zhong)(zhong)(zhong)(zhong)YZ-9820B母(mu)(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)，2U,19英寸(cun)2GPS主(zhu)时(shi)钟(zhong)(zhong)(zhong)(zhong)YZ-9820G母(mu)(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)，2U,19英寸(cun)4时(shi)钟(zhong)(zhong)(zhong)(zhong)监测(ce)管(guan)理系(xi)统(tong)软(ruan)件(jian)系(xi)统(tong)5数(shu)(shu)字(zi)式(shi)子钟(zhong)(zhong)(zhong)(zhong)表(biao)盘(pan)指针(zhen)式(shi)子钟(zhong)(zhong)(zhong)(zhong)，配(pei)(pei)合(he)母(mu)(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)使用(yong)6指针(zhen)式(shi)子钟(zhong)(zhong)(zhong)(zhong)数(shu)(shu)码管(guan)/LED数(shu)(shu)字(zi)式(shi)子钟(zhong)(zhong)(zhong)(zhong)，配(pei)(pei)合(he)母(mu)(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)使用(yong)7无(wu)线转(zhuan)发(fa)(fa)器(qi)(qi)433MHz免申(shen)请频段(duan)，传(chuan)输距离2000米8控制器(qi)(qi)支(zhi)(zhi)持遥(yao)(yao)控器(qi)(qi)方式(shi)或墙壁嵌入式(shi)9天(tian)(tian)线及(ji)防雷模块根据现场情况(kuang)(kuang)选(xuan)择配(pei)(pei)置不(bu)同(tong)长度的卫星天(tian)(tian)线设备选(xuan)型表(biao)序(xu)号名(ming)(ming)称说明1北斗(dou)主(zhu)时(shi)钟(zhong)(zhong)(zhong)(zhong)YZ-9820B母(mu)(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)，2U,19英寸(cun)2GPS主(zhu)时(shi)钟(zhong)(zhong)(zhong)(zhong)YZ-9820G母(mu)(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)，2U,19英寸(cun)4时(shi)钟(zhong)(zhong)(zhong)(zhong)监测(ce)管(guan)理系(xi)统(tong)软(ruan)件(jian)系(xi)统(tong)5数(shu)(shu)字(zi)式(shi)子钟(zhong)(zhong)(zhong)(zhong)表(biao)盘(pan)指针(zhen)式(shi)子钟(zhong)(zhong)(zhong)(zhong)，配(pei)(pei)合(he)母(mu)(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)使用(yong)6指针(zhen)式(shi)子钟(zhong)(zhong)(zhong)(zhong)数(shu)(shu)码管(guan)/LED数(shu)(shu)字(zi)式(shi)子钟(zhong)(zhong)(zhong)(zhong)，配(pei)(pei)合(he)母(mu)(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)使用(yong)7无(wu)线转(zhuan)发(fa)(fa)器(qi)(qi)433MHz免申(shen)请频段(duan)，传(chuan)输距离2000米8控制器(qi)(qi)支(zhi)(zhi)持遥(yao)(yao)控器(qi)(qi)方式(shi)或墙壁嵌入式(shi)9天(tian)(tian)线及(ji)防雷模块根据现场情况(kuang)(kuang)选(xuan)择配(pei)(pei)置不(bu)同(tong)长度的卫星天(tian)(tian)线

成都(dou)(dou)引(yin)众数(shu)(shu)(shu)(shu)字设备有限公司子(zi)(zi)母(mu)钟(zhong)系(xi)(xi)统(tong)(tong)部分(fen)客户案例1、雄安新区(qu)学校(xiao)(xiao)数(shu)(shu)(shu)(shu)字子(zi)(zi)钟(zhong)项(xiang)(xiang)目数(shu)(shu)(shu)(shu)百台母(mu)钟(zhong)+子(zi)(zi)钟(zhong)，6个学校(xiao)(xiao)；2、大(da)运会时(shi)钟(zhong)项(xiang)(xiang)目覆盖(gai)整个大(da)运会场(chang)馆3、成都(dou)(dou)市第六(liu)医(yi)院同步(bu)时(shi)钟(zhong)项(xiang)(xiang)目4、邛(qiong)崃二医(yi)院子(zi)(zi)母(mu)钟(zhong)项(xiang)(xiang)目5、昆山东部医(yi)疗中心电子(zi)(zi)时(shi)钟(zhong)系(xi)(xi)统(tong)(tong)项(xiang)(xiang)目6、成都(dou)(dou)天府国(guo)际机场(chang)子(zi)(zi)母(mu)钟(zhong)项(xiang)(xiang)目世界(jie)卫(wei)(wei)(wei)星(xing)(xing)(xing)(xing)导航(hang)发(fa)展(zhan)中的北(bei)(bei)斗卫(wei)(wei)(wei)星(xing)(xing)(xing)(xing)导航(hang)系(xi)(xi)统(tong)(tong)能够提(ti)供全(quan)天时(shi)、全(quan)天候、高(gao)精度的定位、导航(hang)和授时(shi)服(fu)务，是(shi)重(zhong)要的空间信息基(ji)础设施。世界(jie)各主要航(hang)天国(guo)家都(dou)(dou)十分(fen)重(zhong)视卫(wei)(wei)(wei)星(xing)(xing)(xing)(xing)导航(hang)系(xi)(xi)统(tong)(tong)的建设、应用和发(fa)展(zhan)。竞相(xiang)发(fa)展(zhan)的全(quan)球(qiu)(qiu)卫(wei)(wei)(wei)星(xing)(xing)(xing)(xing)导航(hang)系(xi)(xi)统(tong)(tong)近40多年来(lai)，全(quan)球(qiu)(qiu)卫(wei)(wei)(wei)星(xing)(xing)(xing)(xing)导航(hang)系(xi)(xi)统(tong)(tong)竞相(xiang)发(fa)展(zhan)，呈现出GPS一路，GLONASS曲折前进(jin)，北(bei)(bei)斗分(fen)步(bu)迈进(jin)、伽(jia)利(li)(li)略(lve)踯(zhi)躅前行的态(tai)势。导航(hang)卫(wei)(wei)(wei)星(xing)(xing)(xing)(xing)在轨数(shu)(shu)(shu)(shu)量逐(zhu)步(bu)增加，服(fu)务性能稳步(bu)提(ti)升，应用领域日益扩展(zhan)，成为(wei)人类社会不可或缺的空间信息基(ji)础设施。系(xi)(xi)统(tong)(tong)状(zhuang)态(tai)：4大(da)系(xi)(xi)统(tong)(tong)卫(wei)(wei)(wei)星(xing)(xing)(xing)(xing)在轨数(shu)(shu)(shu)(shu)量情况(kuang)GPS系(xi)(xi)统(tong)(tong)建成后，卫(wei)(wei)(wei)星(xing)(xing)(xing)(xing)数(shu)(shu)(shu)(shu)量相(xiang)对(dui)稳定；GLONASS建成后由于各种原因(yin)，数(shu)(shu)(shu)(shu)量急剧下降，近年来(lai)，卫(wei)(wei)(wei)星(xing)(xing)(xing)(xing)数(shu)(shu)(shu)(shu)逐(zhu)步(bu)增加；北(bei)(bei)斗系(xi)(xi)统(tong)(tong)2000年开始，发(fa)星(xing)(xing)(xing)(xing)、试验、组网；伽(jia)利(li)(li)略(lve)系(xi)(xi)统(tong)(tong)2005年开始，发(fa)星(xing)(xing)(xing)(xing)试验。根据计(ji)划，2020年左右(you)，4大(da)全(quan)球(qiu)(qiu)系(xi)(xi)统(tong)(tong)的卫(wei)(wei)(wei)星(xing)(xing)(xing)(xing)数(shu)(shu)(shu)(shu)量都(dou)(dou)将(jiang)达到30颗以上。成都(dou)(dou)引(yin)众是(shi)子(zi)(zi)母(mu)钟(zhong)系(xi)(xi)统(tong)(tong)解(jie)决方案**，专(zhuan)注(zhu)卫(wei)(wei)(wei)星(xing)(xing)(xing)(xing)同步(bu)时(shi)钟(zhong)研发(fa)15年，专(zhuan)注(zhu)、专(zhuan)业(ye)成就成功(gong)的事业(ye)。

产品(pin)性能、特点1、授(shou)时(shi)精度(du)(du)高；2、抗干(gan)扰能力(li)强；3、内置守时(shi)模(mo)(mo)块(kuai)(kuai)；4、性价比高，应用；5、整体功(gong)耗小(xiao)，采(cai)用无(wu)风扇(shan)设计(ji)，运行(xing)可靠稳(wen)定；6、告别(bie)传统电压驱动(dong)，延长(zhang)(zhang)LED发(fa)(fa)光管的(de)寿命，保(bao)证(zheng)系(xi)统长(zhang)(zhang)时(shi)间运行(xing)无(wu)明(ming)显发(fa)(fa)热(re)、发(fa)(fa)烫现(xian)(xian)象；7、安装方便(bian)，施工简(jian)单(dan)，通电即可与标(biao)准背景(jing)时(shi)间同(tong)步；8、无(wu)需布设室外天(tian)(tian)线(xian)，可以完(wan)全消除雷(lei)电天(tian)(tian)气对设备的(de)破(po)坏，无(wu)天(tian)(tian)线(xian)老化的(de)问题；9、内置GPS接(jie)收模(mo)(mo)块(kuai)(kuai)、GPS北斗(dou)双(shuang)模(mo)(mo)接(jie)收模(mo)(mo)块(kuai)(kuai)、CDMA授(shou)时(shi)模(mo)(mo)块(kuai)(kuai)，不用任何按键调节，自动(dong)获取GPS、北斗(dou)、CDMA时(shi)间，始终(zhong)同(tong)步北京时(shi)间，无(wu)累积误差；10、显示精度(du)(du)高，视(shi)距较长(zhang)(zhang)，显示醒目(mu)清晰，故障里黑(hei)屏不会对使用者产生(sheng)(sheng)误导(dao)；成都引众拥有丰富的(de)时(shi)钟系(xi)统同(tong)步生(sheng)(sheng)产经验，服务全国客户超过(guo)1000家，可根据(ju)现(xian)(xian)场特殊要求提供定制(zhi)服务。四(si)川(chuan)数(shu)字时(shi)钟批(pi)发(fa)(fa)

成都引众的(de)子(zi)母钟系统操(cao)作简单，免维护，适合无人值(zhi)守，是智能化建设必备(bei)的(de)数字(zi)化设备(bei)。四川数字(zi)时钟批发

部(bu)分客户案例1、雄安(an)新(xin)区学(xue)校数字(zi)子(zi)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)项(xiang)目(mu)2、大(da)运会时(shi)(shi)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)项(xiang)目(mu)3、成都(dou)市第六医院同步时(shi)(shi)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)项(xiang)目(mu)4、邛崃二医院子(zi)母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)项(xiang)目(mu)5、昆(kun)山东部(bu)医疗中心电子(zi)时(shi)(shi)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)系(xi)统项(xiang)目(mu)6、成都(dou)天(tian)府国际(ji)机场子(zi)母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)项(xiang)目(mu)。子(zi)母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)之母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)介绍母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)是具(ju)(ju)有(you)较高精度(du)并能(neng)发出控(kong)制(zhi)子(zi)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)的(de)时(shi)(shi)间(jian)信(xin)号(hao)的(de)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)表机构(gou)。早期(qi)是采(cai)用(yong)(yong)比一般(ban)机械(xie)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)精度(du)高的(de)摆(bai)(bai)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)作为(wei)母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)。为(wei)了保证摆(bai)(bai)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)有(you)较高的(de)走(zou)时(shi)(shi)精度(du)，采(cai)用(yong)(yong)电磁原理直接(jie)对摆(bai)(bai)周(zhou)期(qi)性地(di)补充能(neng)量，以(yi)维持摆(bai)(bai)的(de)摆(bai)(bai)幅(fu)。上(shang)述母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)的(de)走(zou)时(shi)(shi)日(ri)差(见钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)表日(ri)差)可保持在(zai)(zai)1秒/日(ri)以(yi)内。随着科学(xue)技术的(de)发展，机械(xie)式母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)已不(bu)(bu)常用(yong)(yong)，现代(dai)主要(yao)采(cai)用(yong)(yong)石(shi)英(ying)母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)甚至(zhi)原子(zi)母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)，一般(ban)放在(zai)(zai)具(ju)(ju)有(you)良好(hao)恒温防震条件的(de)控(kong)制(zhi)室(shi)中使用(yong)(yong)。母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)可以(yi)接(jie)收GPS卫星提供的(de)标准(zhun)UTC时(shi)(shi)间(jian)信(xin)号(hao)，自动(dong)(dong)按照(zhao)当(dang)(dang)地(di)的(de)时(shi)(shi)区设置转化为(wei)当(dang)(dang)地(di)的(de)地(di)方时(shi)(shi)，也可以(yi)自动(dong)(dong)完成对闰年、润(run)秒的(de)计算。通过接(jie)收卫星的(de)标准(zhun)时(shi)(shi)间(jian)信(xin)号(hao)可以(yi)保证母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)时(shi)(shi)间(jian)的(de)准(zhun)确性，在(zai)(zai)我国一些部(bu)门由于安(an)全需要(yao)，都(dou)采(cai)用(yong)(yong)了GPS/北(bei)斗双模母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)，该母(mu)(mu)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)不(bu)(bu)光可以(yi)接(jie)收GPS卫星时(shi)(shi)间(jian)信(xin)号(hao)，当(dang)(dang)GPS信(xin)号(hao)丢(diu)失或者(zhe)出现较大(da)误码时(shi)(shi)，系(xi)统可以(yi)自动(dong)(dong)判(pan)断并切换到具(ju)(ju)有(you)中国自主知(zhi)识产权的(de)北(bei)斗卫星导航定位系(xi)统时(shi)(shi)间(jian)。如电信(xin)，电力，等部(bu)门已经大(da)规模使用(yong)(yong)该系(xi)统。四川数字(zi)时(shi)(shi)钟(zhong)(zhong)(zhong)(zhong)(zhong)(zhong)批发

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