"Times New Roman"">上海锐呈电气有限公司生产的GPS
"Times New Roman"">全球卫星同步时钟利用GPS
mso-hansi-font-family:"Times New Roman"">北斗卫星发送的秒同步时间信号,
"Times New Roman"">向各种自动化装置或局域网终端设备提供准确的同步时间信号。
GPS全球卫星同步时钟 "Times New Roman"">功能特点
1 时间精度高,达20nS mso-hansi-font-family:"Times New Roman"">。
2 守时精度高。装置内部守时单元采用了时间频率测控技术与智能驯服算法,晶体选用高精度恒温晶体振荡器,使装置守时准确度优于7*10-9(0.42μS/ mso-hansi-font-family:"Times New Roman"">分钟) "Times New Roman"">,即在外部时间基准异常的情况下,每天时钟自走时误差不超过0.6 "Times New Roman"">毫秒。如选配铷原子钟,30 "Times New Roman"">年自走时误差不会超过3 "Times New Roman"">毫秒。
3 双CPU mso-hansi-font-family:"Times New Roman"">同时工作,32 "Times New Roman"">位CPU双核处理器,性能提高。
4 支持单星授时模式,适用于收星效果不佳的情况(订货时须说明),有屋顶和贴窗天线可供选择。
5 采用GPS/BD2双系统精密授时,支持单GPS mso-hansi-font-family:"Times New Roman"">、单北斗、双GPS "Times New Roman"">、双北斗、 GPS/ "Times New Roman"">北斗联合授时多种授时方式,并可通过串口、面板菜单等途径修改授时方式。
6 应用GPS mso-hansi-font-family:"Times New Roman"">授时技术/ "Times New Roman"">北斗授时技术/B "Times New Roman"">码解码接收技术/NTP "Times New Roman"">输入/高稳晶体振荡器守时技术授时,实现多基准冗余授时,能够智能判别GPS mso-hansi-font-family:"Times New Roman"">信号、北斗信号、外部B "Times New Roman"">码、NTP输入时间基准信号的稳定性和优劣,并提供多种时间基准配置方法。
7 具有多个物理隔离的相互独立的10/100M网口(每个端口具有独立的MAC mso-hansi-font-family:"Times New Roman"">地址),多个端口可以灵活的配置使用,可以用在不断增长变化的网络环境中;还可用于不同的子网或不同的物理隔离的网络中。另外,还可用来作为NTP mso-hansi-font-family:"Times New Roman"">网管来使用,使多个物理隔离的网络共享时间服务器资源。
8 可同时为几十万台客户端、服务器、工作站提供时间服务。
9 支持WINDOWS9X/NT/XP/2000/2003/2008/WINDOWS7 "Times New Roman"">、LINUX、UNIX mso-hansi-font-family:"Times New Roman"">、SUN SOLARIS "Times New Roman"">、IBM AIX "Times New Roman"">、HP-UX等操作系统及支持NTP mso-hansi-font-family:"Times New Roman"">协议的路由器、交换机、DVR "Times New Roman"">、智能控制器等网络设备。
10 具有开机自检功能,具有本地告警功能,具有远端告警功能
11、本地显示:显示时间、日期、电网频率、跟踪卫星数,具有显示切换功能
12、装置输入输出信号均光电隔离,抗干扰能力强
13、状态指示功能:双电源状态指示,秒脉冲状态指示,同步状态指示
mso-hansi-font-family:"Times New Roman"">二、GPS "Times New Roman"">全球卫星同步时钟技术指标
1、环境条件
(1). mso-hansi-font-family:"Times New Roman"">工作温度: -20℃ "Times New Roman"">~ 70℃
(2). mso-hansi-font-family:"Times New Roman"">贮存温度: -30 "Times New Roman"">℃ ~ 80 mso-hansi-font-family:"Times New Roman"">℃
(3). mso-hansi-font-family:"Times New Roman"">相对湿度: < 95% "Times New Roman"">(不结露)
2、电气条件
. "Times New Roman"">(1)电源: mso-hansi-font-family:"Times New Roman"">交流220V "Times New Roman"">±20% 47Hz ~ 60Hz
mso-hansi-font-family:"Times New Roman"">直流220V "Times New Roman"">±15%
(2). mso-hansi-font-family:"Times New Roman"">功耗: "Times New Roman"">不大于15W
3、GPS mso-hansi-font-family:"Times New Roman"">接收器
mso-hansi-font-family:"Times New Roman"">接收频率(GPS L1 "Times New Roman"">):1575.42MHz "Times New Roman"">(L1信号)。
mso-hansi-font-family:"Times New Roman"">接收灵敏度:捕获〈-160dBW "Times New Roman"">,跟踪〈-163dBW "Times New Roman"">。
mso-hansi-font-family:"Times New Roman"">同时跟踪:正常状态下可同时跟踪8 mso-hansi-font-family:"Times New Roman"">~16 "Times New Roman"">颗GPS卫星;
mso-hansi-font-family:"Times New Roman"">装置冷启动时不小于4 "Times New Roman"">颗卫星;
mso-hansi-font-family:"Times New Roman"">装置热启动时不小于1 "Times New Roman"">颗卫星。
mso-hansi-font-family:"Times New Roman"">捕获时间:装置冷启动时,〈1min "Times New Roman"">;装置热启动时,〈20s "Times New Roman"">。
mso-hansi-font-family:"Times New Roman"">内部电池:电池类型:锂电池;电池寿命:≮25000h mso-hansi-font-family:"Times New Roman"">。
mso-hansi-font-family:"Times New Roman"">北斗接收器
mso-hansi-font-family:"Times New Roman"">接收频率(BD2 B1 "Times New Roman"">):1561.098 "Times New Roman"">±4MHz。
mso-hansi-font-family:"Times New Roman"">接收机灵敏度:-157.6dBW "Times New Roman"">;
TTFF:冷启动:32s, mso-hansi-font-family:"Times New Roman"">热启动:1s, "Times New Roman"">失锁重捕获:<1s "Times New Roman"">;
4、UTC mso-hansi-font-family:"Times New Roman"">时间同步准确度:≤20nS "Times New Roman"">。
5、外形尺寸:
mso-hansi-font-family:"Times New Roman"">架装式结构,
"Times New Roman"">高度1U/2U
"Times New Roman"">、宽度19”机箱。
"Times New Roman"">更多关于GPS
"Times New Roman"">全球卫星同步时钟的介绍,请参考