¼ÃÄÏΨÉеç×ÓÓÐÏÞ¹«Ë¾ÊÇרҵÉú²úGPSʱ¼äͬ²½·þÎñÆ÷£¬±±¶·Ê±ÖÓ£¬ÍøÂçʱ¼ä·þÎñÆ÷£¬NTPʱ¼ä·þÎñÆ÷£¬GPSʱÖÓ·þÎñÆ÷£¬µçÁ¦Í¬²½Ê±ÖÓ£¬µç³§±äµçվʱ¼äͬ²½ÏµÍ³µÄ³§¼Ò£¬ÎÒ¹«Ë¾±¾×ÅÒԿƼ¼Îª¶¯Á¦£¬ÒÔÖÊÁ¿ÇóÉú´æµÄÆóÒµ×ÚÖ¼Ó®µÃÁ˹ã´óÓû§µÄÐÅÀµ£¬ÏÖÉú²úµÄGPSʱÖÓ£¬ÍøÂçʱ¼ä·þÎñÆ÷Òѹ㷺ӦÓÃÓÚµçÁ¦¡¢½ðÈÚ¡¢Í¨ÐÅ¡¢½»Í¨¡¢¹ãµç¡¢Ê¯»¯¡¢Ò±½ð¡¢Ë®Àû¡¢¹ú·À¡¢Ò½ÁÆ¡¢½ÌÓý¡¢Õþ¸®»ú¹Ø¡¢ITµÈÁìÓò¡£
GPSʱ¼äͬ²½·þÎñÆ÷É豸µÄÌØµã£º
1£®Ä£¿é»¯½á¹¹£¬NTP/SNTP¶Ë¿ÚÊýÁ¿¿ÉÁé»îÅäÖ㬿ÉÅäÖöà··Ï໥¶ÀÁ¢µÄ10/100MÍø¿Ú¡£
2£®Ë«CPUͬʱ¹¤×÷£¬32λCPUË«ºË´¦ÀíÆ÷£¬ÐÔÄÜÌá¸ß¡£
3£®¾«¶È¸ß£¬Í¬²½¿ì¡£
4£®Ö§³Öµ¥ÐÇÊÚʱģʽ£¬ÊÊÓÃÓÚÊÕÐÇЧ¹û²»¼ÑµÄÇé¿ö£¬ÓÐÎݶ¥ºÍÌù´°ÌìÏ߿ɹ©Ñ¡Ôñ¡£
5£®×Ô±£³ÖÄÜÁ¦Ç¿£¬×°ÖÃÊÕ²»µ½ÎÀÐÇÐźźó£¬×Ô±£³ÖÄÜÁ¦ÓÅÓÚ0.42μS/min¡£
6£®GPSʱ¼äͬ²½·þÎñÆ÷¿ÉͬʱΪ¼¸Ê®Íǫ̀¿Í»§¶Ë¡¢·þÎñÆ÷¡¢¹¤×÷Õ¾Ìṩʱ¼ä·þÎñ¡£
7£®Ö§³ÖWINDOWS9X/NT/2000/XP/2003¡¢LINUX¡¢UNIX¡¢SUN SOLARIS¡¢IBM AIX¡¢HP-UXµÈ²Ù×÷ϵͳ¼°Ö§³ÖNTPÐÒéµÄ·ÓÉÆ÷¡¢½»»»»ú¡¢ÖÇÄÜ¿ØÖÆÆ÷µÈÍøÂçÉ豸¡£
8£®¶àÖÖÅäÖ÷½·¨£¬Ò×ÓÚ¹ÜÀíºÍÉý¼¶¡£
9£®Ö§³ÖµçÔ´Öжϡ¢GPSʧši¸É½ÓµãÐźŸ澯¡£
10£®GPSʱ¼äͬ²½·þÎñÆ÷רÓÃǶÈëʽϵͳ£¬ÎÞÓ²Å̺ͷçÉÈÉè¼Æ£¬·ÀÕðÉè¼Æ£¬ÏµÍ³Îȶ¨¿É¿¿¡£
11£®¸ßÆ·ÖʵĹ¤Òµ¼¶Ôª¼þ£¬¸ßË®×¼µÄµçÆøÉè¼Æ£¬¸ßÃܶȼ¯³ÉµÄµç·½á¹¹£¬Ê¹×°ÖÃÓµÓÐµçÆø¸ôÀëºÍµç´ÅÆÁ±Î±íÏÖ£¬Õû»úÎ޿ɵ÷½ÚÆ÷¼þ£¬Ìá¸ßÁË×°Öÿ¹¸ÉÈÅÐÔÄÜÓë¿É¿¿ÐÔ±£ÕÏ¡£
12£®GPS½ÓÊÕÌìÏßÖØµã¿¼ÂÇÁË·ÀÀ×Éè¼Æ¡¢Îȶ¨ÐÔÉè¼Æ¡¢¿¹¸ÉÈÅÉè¼Æ£¬ ÐźŽÓÊÕ¿É¿¿ÐԸߣ¬²»ÊܵØÓòÌõ¼þºÍ»·¾³µÄÏÞÖÆ¡£
13£®×°ÖþßÓÐ×Ô¸´Î»ÄÜÁ¦£¬ÔÚÒò¸ÉÈÅÔì³É×°ÖóÌÐò³ö´íʱ£¬ÄÜ×Ô¶¯»Ö¸´Õý³£¹¤×÷¡£
14£®×°ÖÃÌṩһ·¿É±à³ÌµÄTTLÂö³åÐźŹ©Ê±ÖÓµÄ׼ȷ¶ÈÖ¸±ê²âÊÔ¡£
15£®ÓжàÖÖ¹¤×÷״ָ̬ʾ£¬±ãÓÚÔËÐÐÖµ°àÈËÔ±µÄÈÕ³£Ñ²ÊÓ¡£
16£®GPSʱ¼äͬ²½·þÎñÆ÷×°ÖòÉÓÃȫģ¿é»¯¼´²å¼´ÓýṹÉè¼Æ£¬Ö§³Ö°å¿¨ÈȲå°Î£¬ÅäÖÃÁé»î£¬Î¬»¤·½±ã£¬Í¬Ê±Îª½«À´ÏÖ³¡ÍøÂç¸ÄÔìÀ©½¨Ê±Ôö¼Ó¶Ôʱ¶Ë¿ÚÌṩÁË·½±ã¡£
17£®×°ÖÿÉͨ¹ýÊýÂë¹ÜÔÚÏßÏÔʾµ±Ç°ÊÕÐǸöÊý£¬ÔÚÏßÏÔʾװÖõÄͬ²½×´¿ö¡£
GPSʱ¼äͬ²½·þÎñÆ÷µÄÏêϸ²ÎÊý£º
1£®Ê±¼äÔ´£ºGPS¡¢±±¶·¡¢CDMA¡¢IRIG-B¡¢ºãξ§ÕñOCXO¡¢Ô×ÓÖÓ¿ÉÑ¡£»
2£®µçÔ´£º220V/110V½»¡¢Ö±Á÷×ÔÊÊÓ¦,Ë«µçÔ´ÈßÓࣻ
3£®GPS½ÓÊÕÆµÂÊ£º1575.42MHz,½ÓÊÕÁéÃô¶È£º²¶»ñ¡´-160dBW£¬¸ú×Ù¡´-163dBW¡£²¶»ñʱ¼ä£º×°ÖÃÀäÆô¶¯Ê±£¬¡´5min£»×°ÖÃÈÈÆô¶¯Ê±£¬¡´1min¡£
4£®±±¶·½ÓÊÕÆ÷£ºÍ¨µÀ£º6£»½ÓÊÕ»úÁéÃô¶È£º-157.6dBW£»ÀäÆô¶¯Êײ¶Ê±¼ä£º≤2Ãë£»Ê§ËøÖØ²¶Ê±¼ä£º≤1 Ã룻1PPS¾«¶È£ºÓÅÓÚ100nS¡£
5£®Æ½¾ùÎÞ¹ÊÕϼä¸ôʱ¼ä(MTBF)≥150000Сʱ£»Æ½¾ùάÐÞʱ¼ä£¨MTTR£©£ºÒ»°ã²»´óÓÚ30·Ö£¬Ê¹ÓÃÊÙÃü²»ÉÙÓÚ20Äê¡£Õý³£Ê¹ÓÃÌõ¼þÏÂÎÞÐëά»¤¡£
6£®ÊÚʱ¾«¶È£ºÂö³å¡¢BÂ룺0.1μS£¬´®¿Ú£º10μS £¬NTP/SNTP£º1-10ms£»
7£®Íø¿ÚÖ§³ÖÐÒ飺NTP/SNTP £¬ARP£¬UDP/ Time£¬Telnet£¬ICMP£¬SNMP£¬MD5£»
8£®NTP/SNTPÊÚʱ¼Ç¼±£´æ×îÐÂ300Ìõ£»
9£®ÍâÐγߴ磺1U/2U¡¢19”±ê×¼»úÏä,°²×°·½±ã¡£
10£®GPSʱ¼äͬ²½·þÎñÆ÷ÌìÏß³¤¶È±êÅä30m,¿ÉÑ¡50¡¢60¡¢80¡¢100¡¢120¡¢200Ãס£
ΨÉй«Ë¾ÊÛºó·þÎñ³Ðŵ
²úÆ·ÔÚÉè¼ÆµÄʱºòÒѾ´óÁ¿¿¼ÂÇÁ˹¤³Ì°²×°µ÷ÊÔµÄÐèÒª£¬¹ÊÎÒ¹«Ë¾ÌṩÏ꾡µÄ˵Ã÷Êé¡¢ÏÖ³¡¹¤³ÌÖ¸µ¼Êֲᣬ¿ÉÒÔÌṩ£º
1¡¢ÉÏÃÅÅàѵ£º ½øÐвúÆ·»ù±¾ÔÀí¡¢²Ù×÷ʹÓᢼòµ¥Î¬»¤µÈÄÚÈݵÄÅàѵ¹¤×÷¡£
¡¡ 2¡¢¹âÅÌÅàѵ£º¡¡ ÎÒ¹«Ë¾²»¶ÏÍÆ³öÅàѵ¹âÅÌ£¬·½±ã¿Í»§½øÐÐ×ÔÎÒѧϰ¡£
¡¡ 3¡¢Ó¡Ë¢Êֲ᣺¡¡ Ó¡Ë¢ÊֲᣬÓʼĸø¿Í»§£¬Ìṩ×îеļ¼Êõ±¨¸æºÍÓ¦Óð¸Àý¡£
¡¡ 4¡¢Óʼþ·¢ËÍ£º¡¡ ÍÆ³öµç×ÓÓʼþ·¢ËÍ£¬½«×îеIJúÆ·ºÍ¼¼Êõ²ÄÁÏ·¢Ë͸øÄú¡£
¡¡ 5¡¢µç»°¼¼ÊõÖ§³Ö£º ÎÒ¹«Ë¾Ìṩ7*24Сʱ¼¼Êõ·þÎñ£¬¼°Ê±½â¾öÄú¹¤³ÌÖÐÓöµ½µÄÄÑÌâ
6¡¢ÈçÐèÏÖ³¡°²×°µ÷ÊԵģ¬ÎÒ¹«Ë¾½«Ñ¡ÅÉÓоÑé¡¢ÓÐÔðÈÎÐĵŤ³ÌÈËÔ±µÚһʱ¼ä¸Ïµ½ÏÖ³¡¡£
ΨÉй«Ë¾¶Ô±¾¹«Ë¾ÌṩµÄËùÓвúÆ·£¬ÌṩÖÕÉúάÐÞÓëά»¤£»ÈýÄêÄÚ³öÏÖ¹ÊÕÏ£¨·ÇÈËΪÔÒò£©Ãâ·ÑάÐÞ¡£Èí¼þ²Éȡһ´Î¹ºÂòÖÕÉíÃâ·ÑÉý¼¶¡£