http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102938677-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d6a6f422b091ba12ea61d4adbf1b0e8e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04J3-06 |
| filingDate | 2012-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b5898106e185e6c6ba6f8796bdc4c52c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff1a52c785bd47fec3b15c5acaa59aa5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08d12c03418f111cef9dcea7e61cabab http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7849b6136c9aab12892fa1335d28733e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe0c6880281efb13e485213dd13c6a26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf7a46e30b2fe18ed760cf9896f6429b |
| publicationDate | 2015-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102938677-B |
| titleOfInvention | Shore station time synchronization method for undersea observational network |
| abstract | The invention discloses a shore station time synchronization method for an undersea observational network and relates to a synchronization method based on network time protocol (NTP) and precision time protocol (PTP) technologies. According to the method, a PTP master clock and a standby PTP master clock are used for receiving a big dipper or globe positioning system (GPS) satellite signal to be used as a time source; the PTP master clock is selected to be used as a shore station master clock, and when the PTP master clock is invalid, the standby PTP master clock is selected to be used as the shore station master clock until the PTP master clock recovers; the shore station master clock processes the received time source and outputs an NTP synchronization signal and a PTP synchronization signal; and the NTP synchronization signal output by the shore station master clock, the PTP synchronization signal output by the shore station master clock, a shore station data server Ethernet signal and a shore station web page server Ethernet signal are input into the same core switch and integrated into one Ethernet signal, an electrical signal is converted to an optical signal by a packet transport network (PTN) device, and the optical signal is transmitted to an undersea observational network through a deep sea photoelectrical composite cable. The shore station time synchronization method provides the time source which has high stability, high reliability and high accuracy for the undersea observational network. |
| priorityDate | 2012-11-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.