http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110167135-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02D30-70 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W64-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01S5-0257 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04W56-004 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01S5-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04W56-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04W64-00 |
| filingDate | 2019-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110167135-B |
| titleOfInvention | TDOA wireless positioning method and system free of clock synchronization |
| abstract | The invention relates to the technical field of wireless positioning, in particular to a TDOA wireless positioning method and a system without clock synchronization; the method comprises the steps that in a TDOA positioning period, a data packet is broadcasted to each positioning base station through a target node to be detected, one-way communication and one-way two-way communication are respectively carried out between the positioning base stations, and the measurement of the signal flight time difference between the target node to be detected and each positioning base station and the estimation of the clock offset of the current equipment in one clock period are achieved. Time compensation is carried out on the signal arrival time difference through the estimated clock offset, so that an accurate arrival time difference measurement value is obtained, and the TDOA positioning precision is improved; the method does not need accurate synchronization of clocks among all positioning base stations in the whole positioning process, and meanwhile, because the target node to be detected only sends a ranging data packet once in one positioning period, the power consumption of the target node to be detected in the actual positioning process can be effectively reduced. |
| priorityDate | 2019-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID415816843 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID115175 |
Total number of triples: 17.