Title:
POSITIONING TIME SERVICE METHOD AND APPARATUS, TERMINAL DEVICE, AND COMPUTER READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/020056
Kind Code:
A1
Abstract:
A positioning time service apparatus and method. For two different application scenarios of positioning time service and individual time service, the optimization and improvement of the reliability of the positioning and time service results are realized by using the uniquely determined information of the position and time information of a receiver. In an application scenario where the position of a time service apparatus is not accurately calibrated, the time service apparatus is individually positioned by respectively using the observations of the systems, and the position of the time service apparatus is unique. Therefore, four pieces of position information calculated by four systems can be used for mutual checking, so as to obtain more reliable position and time information. The accurate position of the time service apparatus is obtained in a pre-calibration manner, and by using the accurate position of the time service apparatus, the systems eliminate satellite signal observations having large gross errors according to the known position information, and independently calculate receiver clock errors, such that the time service accuracy of a single system is improved.
Inventors:
TENG LING (CN)
DONG FANGYUN (CN)
DING HUIXIA (CN)
WANG ZHIHUI (CN)
FANG SHUAI (CN)
XING YA (CN)
LI JIAN (CN)
LI ZHANGANG (CN)
HU ZHEN (CN)
CHEN DUANYUN (CN)
LIAN JIWEN (CN)
DONG FANGYUN (CN)
DING HUIXIA (CN)
WANG ZHIHUI (CN)
FANG SHUAI (CN)
XING YA (CN)
LI JIAN (CN)
LI ZHANGANG (CN)
HU ZHEN (CN)
CHEN DUANYUN (CN)
LIAN JIWEN (CN)
Application Number:
PCT/CN2022/094724
Publication Date:
February 23, 2023
Filing Date:
May 24, 2022
Export Citation:
Assignee:
CHINA ELECTRIC POWER RES INST (CN)
STATE GRID FUJIAN ELECTRIC POWER CO LTD (CN)
STATE GRID CORP CHINA (CN)
STATE GRID FUJIAN ELECTRIC POWER CO LTD (CN)
STATE GRID CORP CHINA (CN)
International Classes:
G01S19/14; G01S19/33; G01S19/42; G04R20/02
Foreign References:
| CN113640838A | 2021-11-12 | |||
| US20090009386A1 | 2009-01-08 | |||
| CN105738927A | 2016-07-06 | |||
| CN105158780A | 2015-12-16 | |||
| CN108459334A | 2018-08-28 | |||
| CN108732597A | 2018-11-02 | |||
| CN108254773A | 2018-07-06 | |||
| CN108594631A | 2018-09-28 | |||
| US20120293366A1 | 2012-11-22 | |||
| US20110102253A1 | 2011-05-05 |
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
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