CN101776743A - Electronic device and method for searching satellite - Google Patents
Electronic device and method for searching satellite Download PDFInfo
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- CN101776743A CN101776743A CN200910003075A CN200910003075A CN101776743A CN 101776743 A CN101776743 A CN 101776743A CN 200910003075 A CN200910003075 A CN 200910003075A CN 200910003075 A CN200910003075 A CN 200910003075A CN 101776743 A CN101776743 A CN 101776743A
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Abstract
The invention discloses an electronic device and a method for searching a satellite. The method comprises the following steps: acquiring position information; acquiring time information; calculating an area range according to the position information; searching a plurality of target satellite numbers which accord with the time information and the area range in a plurality of satellite ephemeris data in a satellite ephemeris database; and searching a plurality of target satellites corresponding to the target satellite numbers, and receiving satellite signals sent by the plurality of target satellites, wherein the position information is output by an operation interface; a calculation unit calculates the area range according to the received position information; and a searching unit is electrically connected with the satellite ephemeris database and is used for searching the plurality of target satellite numbers corresponding to the time information and the area range.
Description
Technical field
The present invention relates to a kind of electronic installation and method of search, particularly relate to a kind of electronic installation and method of searching satellite, be used for searching target satellite according to the positional information and the temporal information that obtain, and the satellite-signal that transmitted of receiving target satellite.
Background technology
(Global Position System is to utilize the basic triangle positioning principle of satellite GPS) to Global Positioning System (GPS).By the position of every satellite, measure every satellite to distance between electronic installation, can calculate the three dimensional space coordinate value of electronic installation position.When electronic installation is received a satellite-signal, can be converted into the position at place and the distance between the satellite via inner microprocessor.When receiving two satellite-signals, electronic installation can calculate a planimetric coordinates information.When receiving the 3rd satellite-signal, can calculate the location coordinate information at place.General electronic installation all is to utilize to receive 4 above satellite-signals, makes the position and the height at electronic installation place.And when GPS receives that continuously 5 to 6 satellite-signals are above, just can obtain more accurate localization data.
The emission running of 32 satellites is arranged at present, be evenly distributed on six orbital planes, the inclination angle of track is about 55 °, and satellite altitude is about 20,183 kilometers, and period of satellite is 11: 58; That is every satellite every day detour 2 weeks of the earth according to the border of going the same way mutually, this design can guarantee the user on the ground any time, the place can see 4 above satellites at least.When electronic installation in when start, must detecting whether can receive the signal of the 1st satellite, then, detect the 2nd to the 32nd in regular turn, wherein, the signal detection time of every satellite is about 30 seconds.Therefore, if whole 32 satellites are all detected and finished, then the user must wait for one period very long on time.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of method of searching satellite, is used for searching target satellite according to the positional information and the temporal information that obtain, and the satellite-signal that transmitted of receiving target satellite.And then get rid of the satellite that can not occur at present, to shorten the time of searching satellite.
To achieve these goals, the invention provides a kind of method of searching satellite, be applied to have the electronic installation of satellite positioning functions, comprising: obtain positional information; Obtain temporal information; According to the positional information calculation regional extent; Search several target satellite numberings that meet temporal information and regional extent according to several almanac datas in the almanac data storehouse; And search pairing several target satellites of several target satellite numberings, and receive the satellite-signal that several target satellites transmit.
Wherein, positional information can be the longitude and latitude of electronic installation current location.
In addition, temporal information can be the system time of electronic installation.
In addition, above-mentioned several almanac datas can comprise: several satellite numberings and several orbit parameters.Several satellite numberings can be day numbering of aerial several satellites, and wherein, several satellites correspond to several satellite numberings, and several satellite numberings do not repeat; And several orbit parameters can be pairing several running orbits of several satellites, several time parameters and several location parameters.
To achieve these goals, the present invention also provides a kind of electronic installation with searching satellite function, be used for searching target satellite according to the positional information and the temporal information that obtain, and the satellite-signal that transmitted of receiving target satellite.And then get rid of the satellite that can not occur at present, to shorten the time of searching satellite.
For reaching above-mentioned purpose, the present invention also provides a kind of electronic installation with searching satellite function, comprising: operation interface, almanac data storehouse, computing unit and search the unit.Wherein, operation interface is in order to output position information; The almanac data storehouse is in order to store several satellite ephemeris; Computing unit is according to the positional information calculation regional extent that receives; And search the unit and be electrically connected at the almanac data storehouse, search the unit and search several target satellites that meet temporal information and regional extent according to several almanac datas and number.
Wherein, positional information can be the longitude and latitude of electronic installation current location.
In addition, temporal information can be the system time of electronic installation.
In addition, several almanac datas can comprise: several satellite numberings and several orbit parameters.
Several satellite numberings are the numbering of aerial several the satellites in sky, and wherein several satellites correspond to several satellite numberings, and several satellite numberings do not repeat; And several orbit parameters, be several pairing several running orbits of satellite, several time parameters and several location parameters.
According to the electronic installation and the method for searching satellite provided by the present invention, can search target satellite according to positional information that obtains and temporal information, and the satellite-signal that transmitted of receiving target satellite.And then get rid of the satellite that can not occur at present, to shorten the time of searching satellite.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the configuration diagram according to one embodiment of the invention;
Fig. 2 is the schematic flow sheet according to one embodiment of the invention.
Wherein, Reference numeral:
100 electronic installations
110 operation interfaces
120 almanac data storehouses
130 computing units
140 search the unit
150 processors
160 geographical data banks
Embodiment
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is made further more detailed description.
According to the method for searching satellite of the present invention, be applied to have the electronic installation of satellite positioning functions.This method can be realized according to searching satellite method of the present invention by the processor execution of electronic installation built-in software or firmware program collocation satellite positioning functions by being built in software or the firmware program in the memory storage of electronic installation again.In this, electronic installation can be the computing machine (Computer) of satellite positioning functions, the mobile phone (Mobile Phone) of tool satellite positioning functions or personal digital assistant (the PersonalDigital Assistant of satellite positioning functions, but not only be confined to above-mentioned electronic installation PDA) etc..
Please refer to shown in Figure 1ly, it is the configuration diagram according to one embodiment of the invention.Electronic installation 100 has the searching satellite function, and it includes: operation interface 110, almanac data storehouse 120, computing unit 130, search unit 140 and processor 150.Wherein, operation interface 110 is in order to output position information.Almanac data storehouse 120 is in order to store several satellite ephemeris.Computing unit 130 is according to the positional information calculation regional extent that receives.Search unit 140 and be electrically connected at almanac data storehouse 120, search unit 140 and search several target satellite numberings that meet temporal information and regional extent according to several almanac datas.Processor 150 is electrically connected at computing unit 130 and searches unit 140, and processor is in order to carry out computing unit 130 and to search unit 140.
Wherein, above-mentioned positional information can be the longitude and latitude of electronic installation 100 current locations.In this, electronic installation 100 can comprise that also geographical data bank 160 is electrically connected at operation interface 110, in order to store several geographical location information and corresponding icon.Operation interface 110 can show the content of geographical data bank 160 by a figure form or tabular form, the user is via the position of the present electronic installation 100 of operation interface 110 inputs, and the geographical location information that will obtain by operation interface 110 is output as positional information.In addition, regional extent can be the effective range of receiving of electronic installation 100 in order to receiving satellite signal.
In addition, above-mentioned temporal information can be the system time of electronic installation 100 or imports the current time by the user by operation interface 110.
In addition, almanac data can comprise: several satellite numberings and several orbit parameters.Several satellites are numbered pairing several satellite numberings of day aerial several satellites, and several satellite numberings do not repeat.Several orbit parameters are pairing several running orbits of several satellites, several time parameters and several location parameters.
Please refer to Fig. 2, it is the schematic flow sheet according to one embodiment of the invention.For convenience of description, the positional information that obtains in this hypothesis is 101 buildings, the Taibei, and longitude is east longitude 121 degree 34 minutes and 20 seconds, and latitude is north latitude 25 degree 1 minute and 43 seconds.Suppose that the temporal information that obtains is 13: 30 on the 1st January in 2008.The regional extent of supposing to calculate is for being the center of circle with 101 buildings, the Taibei, and 20 kilometers is the regional extent that radius became.Suppose that the target satellite that finds out is numbered No. 5 satellites, No. 8 satellites, No. 15 satellites, No. 20 satellites, No. 23 satellites, No. 26 satellites, No. 27 satellites and No. 31 satellites.Suppose that the satellite-signal that electronic installation can receive is No. 5 satellites, No. 15 satellites, No. 20 satellites and No. 31 satellites.
At first, obtain positional information east longitude 121 degree 34 minutes and 20 seconds, 1 minute 43 seconds (step S210) of north latitude 25 degree by operation interface.Then, obtain temporal information January 1 13: 30 (step S220) in 2008.According to positional information calculation regional extent (step S230).Search the target satellite numbering (5,8,15,20,23,26,27 and No. 31) (step S240) that meets temporal information and regional extent according to several almanac datas in the almanac data storehouse.Then, searching target satellite numbering (5,8,15,20,23,26,27 and No. 31) pairing target satellite (5,8,15,20,23,26,27 and No. 31 satellites), and the satellite-signal (step S250) that transmitted of receiving target satellite.Carry out satnav (step S260) according to the satellite-signal (5,15,20 and No. 31 satellites) that receives.
Wherein, above-mentioned positional information can be the longitude and latitude of electronic installation current location.In this, electronic installation can comprise that also geographical data bank is electrically connected at operation interface, in order to store several geographical location information and corresponding icon.Operation interface can show the content of geographical data bank by figure form or tabular form, and the user imports the position of present electronic installation via operation interface, and the geographical location information that will obtain by operation interface is output as positional information.In addition, regional extent can be the effective range of receiving of electronic installation in order to receiving satellite signal.
In addition, above-mentioned temporal information can be the system time of electronic installation or imports the current time by the user by operation interface.
In this, almanac data can comprise: several satellite numberings and several orbit parameters.Several satellites are numbered pairing several satellite numberings of day aerial several satellites, and several satellite numberings do not repeat.Several orbit parameters are pairing several running orbits of several satellites, several time parameters and several location parameters.
According to the electronic installation and the method for searching satellite provided by the present invention, can search target satellite according to positional information that obtains and temporal information, and the satellite-signal that transmitted of receiving target satellite.And then get rid of the satellite that can not occur at present, to shorten the time of searching satellite.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (8)
1. the method for a searching satellite is applied to have the electronic installation of satellite positioning functions, it is characterized in that this method comprises:
Obtain a positional information;
Obtain a time information;
According to this positional information calculation one regional extent;
Search a plurality of target satellite numberings that meet this temporal information and this regional extent according to many almanac datas in the almanac data storehouse; And
Search these target satellites and number pairing a plurality of target satellite, and receive the satellite-signal that these target satellites transmit.
2. the method for searching satellite according to claim 1 is characterized in that, this positional information is a longitude and a latitude of this electronic installation current location.
3. the method for searching satellite according to claim 1 is characterized in that, this temporal information is the system time of this electronic installation.
4. the method for searching satellite according to claim 1 is characterized in that, these almanac datas comprise:
A plurality of satellite numberings are the numbering of the aerial a plurality of satellites in sky, and wherein these satellites correspond to these satellite numberings, and these satellite numberings do not repeat; And
A plurality of orbit parameters are the pairing a plurality of running orbits of these satellites, a plurality of time parameter and a plurality of location parameter.
5. the electronic installation with searching satellite function is characterized in that, comprising:
One operation interface is in order to export a positional information;
One almanac data storehouse is in order to store many satellite ephemeris;
One computing unit is according to this positional information calculation one regional extent that receives; And
One searches the unit, is electrically connected at this almanac data storehouse, and this is searched the unit and searches a plurality of target satellite numberings that meet this temporal information and this regional extent according to these almanac datas.
6. the electronic installation with searching satellite function according to claim 5 is characterized in that, this positional information is a longitude and a latitude of this electronic installation current location.
7. the electronic installation with searching satellite function according to claim 5 is characterized in that, this temporal information is the system time of this electronic installation.
8. the electronic installation with searching satellite function according to claim 5 is characterized in that, these almanac datas comprise:
A plurality of satellite numberings are the numbering of the aerial a plurality of satellites in sky, and wherein these satellites correspond to these satellite numberings, and these satellite numberings do not repeat; And
A plurality of orbit parameters are the pairing a plurality of running orbits of these satellites, a plurality of time parameter and a plurality of location parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100030754A CN101776743B (en) | 2009-01-09 | 2009-01-09 | Electronic device and method for searching satellite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100030754A CN101776743B (en) | 2009-01-09 | 2009-01-09 | Electronic device and method for searching satellite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101776743A true CN101776743A (en) | 2010-07-14 |
| CN101776743B CN101776743B (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100030754A Expired - Fee Related CN101776743B (en) | 2009-01-09 | 2009-01-09 | Electronic device and method for searching satellite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018129838A1 (en) * | 2017-01-11 | 2018-07-19 | 华为技术有限公司 | Positioning method, terminal and server |
-
2009
- 2009-01-09 CN CN2009100030754A patent/CN101776743B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018129838A1 (en) * | 2017-01-11 | 2018-07-19 | 华为技术有限公司 | Positioning method, terminal and server |
| CN113064185A (en) * | 2017-01-11 | 2021-07-02 | 荣耀终端有限公司 | Positioning method, terminal and server |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101776743B (en) | 2012-06-27 |
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Granted publication date: 20120627 Termination date: 20200109 |