CN104749582B - The sending method of differential data, the determination method and device of GPS location data - Google Patents
The sending method of differential data, the determination method and device of GPS location data Download PDFInfo
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- CN104749582B CN104749582B CN201310741926.1A CN201310741926A CN104749582B CN 104749582 B CN104749582 B CN 104749582B CN 201310741926 A CN201310741926 A CN 201310741926A CN 104749582 B CN104749582 B CN 104749582B
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/07—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/02—Details of the space or ground control segments
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiments of the invention provide a kind of sending method of differential data, the determination method and device of GPS location data, and in the sending method of differential data, control platform obtains differential data corresponding to each terminal according to predetermined period；The differential data of acquisition is sent to counterpart terminal respectively, the differential data of itself needs is determined to indicate counterpart terminal according to the differential data received, and when itself needs to be positioned, the final GPS location data of itself are determined according to the newest differential data determined and the raw GPS positioning data of itself.In the present invention, data link is kept between control platform and each terminal, and periodically send corresponding differential data to each terminal, make terminal when needing positioning, total energy determines accurate location data using newest differential data and the location data of itself, terminal is avoided in active obtaining correlator difference data, because network reason leads to not obtain in time, and the problem of high accuracy positioning can not be realized.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of sending method of differential data, GPS location data are really
Determine method and device.
Background technology
At present, as shown in figure 1, global positioning system (Global Position System, GPS) generally includes ground sight
Survey platform 11, control platform 12 and multiple terminals 13.Wherein, ground observation platform 11, it is main to be responsible for collection gps satellite observation number
According to；Control platform 12, it is main to be responsible for receiving the Satellite Observations that ground observation platform 11 is sent, or from ground observation platform
11 obtain Satellite Observations, and relevant treatment is carried out to it, and the demand of response terminal.
When being positioned using above-mentioned GPS positioning system, due to by ionospheric interference, satellite orbit, satellite clock etc.
The influence of factor, easily cause GPS positioning result error larger.So, in order to avoid this problem, in GPS positioning system
Control platform 12 is that terminal 13 provides correlator difference data generally by the mode such as internet (Internet), radio station, with
Terminal 13 is set to obtain accurate GPS location data according to corresponding differential data and the GPS location data of itself, so as to carry
The high positioning precision of terminal 13.
Specifically, for control platform 12, it by Internet be terminal 13 provide differential data when, be
Just provided in the case of receiving the Location Request that terminal 13 is sent, i.e., according to the position of the terminal 13 carried in the Location Request
Confidence cease, send corresponding differential data to terminal 13, so, by terminal 13 further according to corresponding differential data and itself
GPS location data obtain accurate GPS location data.Herein, above-mentioned Location Request is that terminal 13 needs to be determined at itself
Just sent during position to control platform 12.
Can be seen that user from the offer flow of above-mentioned differential data is just active and the control when needing to be positioned
Internet links are established at center, correlator difference data are obtained at control platform, so, in Internet coverages
The timing of incomplete or swinging of signal, easily the problems such as generation link establishment failure, data transfer delay, terminal is caused not obtain in time
Correlator difference data are got, and then high accuracy positioning can not be realized.
The content of the invention
The embodiments of the invention provide a kind of sending method of differential data, the determination method and device of GPS location data,
To solve the problems, such as that the offer flow of existing differential data causes terminal can not realize high accuracy positioning.
Based on above mentioned problem, a kind of sending method of differential data provided in an embodiment of the present invention, including：
Control platform obtains differential data corresponding to each terminal according to predetermined period；
The differential data of acquisition is sent to counterpart terminal respectively, to indicate counterpart terminal according to the differential data received
The differential data that itself needs is determined, and when itself needs to be positioned, according to the newest differential data determined and itself
Raw GPS positioning data determine the final GPS location data of itself.
A kind of control platform provided in an embodiment of the present invention, including：
Acquisition module, for obtaining differential data corresponding to each terminal according to predetermined period；
Sending module, for respectively sending the differential data that the acquisition module obtains to counterpart terminal, with instruction pair
The differential data for answering terminal to determine itself to need according to the differential data received, and when itself needs to be positioned, according to
The differential data and the raw GPS positioning data of itself determined determine the final GPS location data of itself.
A kind of determination method of GPS location data provided in an embodiment of the present invention, including：
Terminal receives the differential data that control platform is sent according to predetermined period；
Differential data according to receiving determines the differential data that itself needs, and when itself needs to be positioned, root
The final GPS location data of itself are determined according to the newest differential data determined and the raw GPS positioning data of itself.
A kind of terminal device provided in an embodiment of the present invention, including：
Receiving module, the differential data sent for receiving control platform according to predetermined period；
Determining module, the differential data for being received according to the receiving module determine the differential data that itself needs,
And when itself needs to be positioned, determined certainly according to the newest differential data determined and the raw GPS positioning data of itself
The final GPS location data of body.
The beneficial effect of the embodiment of the present invention includes：
A kind of method of reseptance of differential data provided in an embodiment of the present invention, the determination method and device of GPS location data,
In the sending method of differential data, control platform obtains differential data corresponding to each terminal according to predetermined period；It will obtain respectively
The differential data taken is sent to counterpart terminal, to indicate that the differential data that counterpart terminal receives determines the difference number itself needed
According to, and when itself needs to be positioned, determined according to the newest differential data determined and the raw GPS positioning data of itself
The final GPS location data of itself.In embodiments of the present invention, lasting Data-Link is kept between control platform and each terminal
Connect, and periodically send corresponding differential data to each terminal, making terminal, total energy utilizes newest reception when needing positioning
Differential data and the location data of itself determine accurate location data, avoid end side in active obtaining relevant difference fraction
According to when, because network reason leads to not obtain in time, and then the problem of high accuracy positioning can not be realized.
Brief description of the drawings
Fig. 1 is the structural representation of existing GPS system；
Fig. 2 is a kind of flow chart of the sending method of differential data provided in an embodiment of the present invention；
Fig. 3 is a kind of flow chart of the determination method of GPS location data provided in an embodiment of the present invention；
Fig. 4 is a kind of structure chart of control platform provided in an embodiment of the present invention；
Fig. 5 is a kind of structure chart of terminal device provided in an embodiment of the present invention.
Embodiment
With reference to Figure of description, to a kind of method of reseptance of differential data provided in an embodiment of the present invention, GPS location
The embodiment of the determination method and device of data illustrates.
The sending method of a kind of differential data provided in an embodiment of the present invention, as shown in Fig. 2 specifically including following steps：
S21：Control platform obtains differential data corresponding to each terminal according to predetermined period；
S22：The differential data of acquisition is sent to counterpart terminal respectively, to indicate counterpart terminal according to the difference received
Data determine the differential data that itself needs, and when itself needs to be positioned, according to the newest differential data determined and
The raw GPS positioning data of itself determines the final GPS location data of itself.
Preferably, in above-mentioned steps S21, predetermined period can determine according to the practical operation situation of GPS system, example
Such as, predetermined period is 10 minutes, it is of course also possible to be other numerical value.
Further, before above-mentioned control platform obtains correlator difference data, in addition to following flows：
Control platform performs operations described below for each terminal：Judging that the account level of present terminal is premium account
When, the positional information that is reported according to present terminal determines differential data corresponding to present terminal；Judging present terminal
When account level is regular account, using default differential data as differential data corresponding to the present terminal determined.
That is, for the terminal of premium account, when above-mentioned predetermined period reaches, it is necessary to according to these terminals
Positional information (such as the SDK that terminal passes through itself reported after control platform is successfully logged onto
(Software Development Kit, SDK) completes authentication operations with control platform), to further determine that terminal institute is in place
A range of differential data nearby is put, i.e., only can send the differential data corresponding with these terminals；And for common account
For the terminal at family, after control platform is successfully logged onto, relevant location information is not reported generally, and so, control is flat
Platform thinks that these terminals need the differential data of all areas.Herein, differential data may include Position Corrections number, pseudorange correction
Number, phase correction number etc..
Further, in embodiments of the present invention, in order to give the terminal of premium account to provide more accurate difference number
According to above-mentioned control platform is also in the case of the movable information that the terminal for receiving these premium accounts reports, according to these ends
The positional information reported and movable information are held, determines differential data corresponding to present terminal jointly.Herein, movable information can
Motion velocity information and direction of motion information including associated terminal, so that control platform can be according to these information evaluation relevant finals
Hold the ultimate range moved in some predetermined period, associated terminal is then assessed according to this ultimate range corresponding to difference number
According to.
It should be noted that in above-mentioned steps S21, control platform is actually to obtain relevant difference from ground observation platform
Divided data.
Preferably, in above-mentioned steps S22, in order to improve the security of transmission, control platform is sent to the phase of each terminal
It is typically the data encrypted to close differential data.
Preferably, in embodiments of the present invention, differential data was sent to corresponding end exactly for the ease of control platform
End, control platform perform operations described below also directed to each terminal：Monitor the IP address of present terminal；And monitoring present terminal
IP address when changing, the newest IP address using the IP address after change as counterpart terminal, and according to newest IP address
To differential data corresponding to present terminal transmission.
That is, control platform side is stored with International Mobile Equipment Identity code (the Intemational Mobile of terminal
Equipment, IMEI) or international mobile subscriber identity (International Mobile Subscriber
Identification Number, IMSI) with the corresponding relation of IP address, so, when some IMEI reports new IP address
When, it is updated.
The determination method of a kind of GPS location data provided in an embodiment of the present invention, as shown in figure 3, specifically including following step
Suddenly：
S31：Terminal receives the differential data that control platform is sent according to predetermined period；
S32：Differential data according to receiving determines the differential data that itself needs, and needs to be positioned at itself
When, the final GPS location data of itself are determined according to the newest differential data determined and the raw GPS positioning data of itself.
For terminal, it can determine the differential data that itself needs especially by following manner：
First way, when the account level of itself is premium account, the differential data received is defined as itself
The differential data needed；
The second way, when the account level of itself is regular account, according to the positional information of itself, from what is received
The differential data required for itself is selected in differential data, and using the differential data selected as the difference number itself needed
According to.
It should be noted that in the above-mentioned second way, such as the differential data that control platform is sent includes all provinces
The differential data in city, the position of terminal provinces and cities according to where oneself, selects the difference required for oneself from these differential datas
Divided data, those oneself unwanted differential datas are abandoned.
In addition, in above-mentioned steps S32, terminal, can be by these difference after the differential data of itself needs is determined
Data buffer storage is in some buffer area, so, when obtaining the differential data required for oneself again next time, replaces in buffer area
The differential data preserved before, to ensure that terminal when needing positioning, can be positioned using newest differential data, carried
The accuracy rate of height positioning.
Preferably, in embodiments of the present invention, above-mentioned terminal can also monitor the IP address of itself, and monitor IP address
When changing, the IP address after change is reported into control platform.For example, terminal can be monitored periodically, such as every 30
Second monitoring is once.
In embodiments of the present invention, lasting data link is kept between control platform and each terminal, periodically to each
Terminal sends corresponding differential data, makes terminal when needing positioning, can utilize newest reception differential data and itself
Location data (i.e. raw GPS positioning data) determines accurate location data (most opening GPS location data), avoids terminal
Side because network reason leads to not obtain in time, and then can not realize high accuracy positioning in active obtaining correlator difference data
The problem of.
Based on same inventive concept, the embodiment of the present invention additionally provides the relevant apparatus of the corresponding above method, due to these
The principle that device solves problem is similar to the above method, therefore the implementation of these devices may refer to the implementation of preceding method,
Part is repeated to repeat no more.
A kind of control platform provided in an embodiment of the present invention, as shown in figure 4, specifically including：
Acquisition module 41, for obtaining differential data corresponding to each terminal according to predetermined period；
Sending module 42, for respectively sending the differential data that acquisition module 41 obtains to counterpart terminal, with instruction pair
The differential data for answering terminal to determine itself to need according to the differential data received, and when itself needs to be positioned, according to
The differential data and the raw GPS positioning data of itself determined determine the final GPS location data of itself.
Preferably, above-mentioned control platform, in addition to：
Determining module 43, specifically for performing operations described below for each terminal：Judging the account levels of present terminal
Not Wei premium account when, the positional information that is reported according to present terminal determines differential data corresponding to present terminal；And
It is when the account level for judging present terminal is regular account, default differential data is corresponding as the present terminal determined
Differential data.
Preferably, above-mentioned determining module 43, it is additionally operable to judging that the account level of present terminal is premium account, and connects
When receiving the movable information that present terminal reports, the positional information and movable information that are reported according to present terminal, determine current
Differential data corresponding to terminal.
Preferably, above-mentioned control platform, in addition to monitoring modular 44,
Above-mentioned monitoring modular 44, for performing operations described below for each terminal：The IP address of monitoring present terminal, and
When monitoring that the IP address of present terminal changes, the newest IP address using the IP address after change as counterpart terminal；
Above-mentioned sending module 43, it is additionally operable to the differential data according to corresponding to newest IP address to present terminal transmission.
A kind of terminal device provided in an embodiment of the present invention, as shown in figure 5, specifically including：
Receiving module 51, the differential data sent for receiving control platform 52 according to predetermined period；
Determining module 53, the differential data for being received according to receiving module 51 determine the differential data that itself needs,
And when itself needs to be positioned, determined certainly according to the newest differential data determined and the raw GPS positioning data of itself
The final GPS location data of body.
Preferably, above-mentioned determining module 53, specifically for when the account level of terminal device is premium account, will receive
To differential data be defined as itself needs differential data；And when the account level of terminal device is regular account, root
The difference number required for terminal device is selected according to the positional information of terminal device, in the differential data received from receiving module
According to, and the differential data that the differential data selected is needed as itself.
Preferably, above-mentioned terminal device, in addition to：
Monitoring modular 54, for the IP address of monitoring terminal equipment, and when monitoring that IP address changes, it will change
IP address afterwards reports control platform 52.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (8)
- A kind of 1. sending method of differential data, it is characterised in that including：Control platform obtains differential data corresponding to each terminal according to predetermined period；The differential data of acquisition is sent to counterpart terminal respectively, to indicate that counterpart terminal determines according to the differential data received The differential data that itself needs, and when itself needs to be positioned, according to the newest differential data determined and the original of itself Beginning GPS location data determine the final GPS location data of itself；Wherein, for the control platform before differential data corresponding to each terminal is obtained, the control platform is directed to each terminal Perform operations described below：When it is premium account to judge the account level of present terminal, the positional information and fortune that are reported according to the present terminal Dynamic information, determines differential data corresponding to the present terminal；When it is regular account to judge the account level of present terminal, using default differential data as working as described in determining Differential data corresponding to preceding terminal.
- 2. the method as described in claim 1, it is characterised in that also include：The control platform performs operations described below for each terminal：The IP address of the control platform monitoring present terminal；If monitor that the IP address of the present terminal changes, using the IP address after change as the newest of counterpart terminal IP address, and the differential data according to corresponding to the newest IP address to present terminal transmission.
- A kind of 3. control platform, it is characterised in that including：Acquisition module, for obtaining differential data corresponding to each terminal according to predetermined period；Sending module, it is corresponding eventually with instruction for respectively sending the differential data that the acquisition module obtains to counterpart terminal The differential data that end determines itself to need according to the differential data received, and when itself needs to be positioned, according to determination The differential data and the raw GPS positioning data of itself gone out determines the final GPS location data of itself；Wherein, the control platform also includes determining module, for obtained in the acquisition module each terminal differential data it Before, perform operations described below for each terminal：When it is premium account to judge the account level of present terminal, worked as according to described The positional information and movable information that preceding terminal reports, determine differential data corresponding to the present terminal；And judging When the account level of present terminal is regular account, using default differential data as corresponding to the present terminal determined Differential data.
- 4. control platform as claimed in claim 3, it is characterised in that the control platform, in addition to monitoring modular,The monitoring modular, for performing operations described below for each terminal：The IP address of present terminal is monitored, and is being monitored When the IP address of the present terminal changes, the newest IP address using the IP address after change as counterpart terminal；The sending module, it is additionally operable to the differential data according to corresponding to the newest IP address to present terminal transmission.
- A kind of 5. determination method of GPS location data, it is characterised in that including：Terminal receives the differential data that control platform is sent according to predetermined period；The differential data received is defined as the difference of itself needs by the terminal when the account level of itself is premium account Divided data；Or the terminal is believed when the account level of itself is regular account according to the positional information of itself and motion Breath, selects the differential data required for itself, and regard the differential data selected as itself from the differential data received The differential data needed；And when itself needs to be positioned, it is original with itself according to the newest differential data determined GPS location data determine the final GPS location data of itself.
- 6. method as claimed in claim 5, it is characterised in that also include：The terminal reports the control platform when monitoring that IP address changes, by the IP address after change.
- A kind of 7. terminal device, it is characterised in that including：Receiving module, the differential data sent for receiving control platform according to predetermined period；Determining module, for the differential data that when the account level of itself is premium account, the receiving module is received Determine the differential data that itself needs；Or the terminal is when the account level of itself is regular account, according to the position of itself Confidence ceases and movable information, and the differential data required for itself is selected in the differential data that the receiving module is received, and The differential data that the differential data selected is needed as itself；And when itself needs to be positioned, according to newest true The differential data and the raw GPS positioning data of itself made determine the final GPS location data of itself.
- 8. terminal device as claimed in claim 7, it is characterised in that the terminal device, in addition to：Monitoring modular, for monitoring the IP address of the terminal device, and when monitoring that the IP address changes, it will become IP address after change reports the control platform.
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| CN201310741926.1A CN104749582B (en) | 2013-12-27 | 2013-12-27 | The sending method of differential data, the determination method and device of GPS location data |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106912076B (en) * | 2017-03-27 | 2019-05-07 | 千寻位置网络有限公司 | Differential data broadcasting system and method are applied in a kind of multiple terminals more |
| CN106980123B (en) * | 2017-03-27 | 2019-09-24 | 千寻位置网络有限公司 | To the processing analysis method and system, service terminal for receiving data |
| CN106953866B (en) * | 2017-03-29 | 2019-07-23 | 千寻位置网络有限公司 | Method and system, the service terminal of high accuracy positioning service are provided |
| CN106899613B (en) * | 2017-04-05 | 2019-03-12 | 千寻位置网络有限公司 | The method that enhancing differential service broadcasts safety |
| CN107864006A (en) * | 2017-11-01 | 2018-03-30 | 千寻位置网络有限公司 | Broadcast differential data authentication and the system and method for encryption |
| CN110706462A (en) * | 2019-08-23 | 2020-01-17 | 桂林赛普电子科技有限公司 | Position positioning and anti-theft monitoring method, system and equipment for low-power-consumption Internet of things terminal |
| CN111797064A (en) * | 2020-05-26 | 2020-10-20 | 深圳华大北斗科技有限公司 | Positioning data processing method and device, electronic equipment and storage medium |
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| CN203275971U (en) * | 2013-04-27 | 2013-11-06 | 湖南科技大学 | Outdoor ground swarm-robot control system |
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| CN201173969Y (en) * | 2007-12-29 | 2008-12-31 | 宁波电业局 | Real-time differential large-screen hand-held set |
| KR101326889B1 (en) * | 2011-11-07 | 2013-11-11 | 현대자동차주식회사 | A method and system to control relative position among vehicles using dgps mobile reference station |
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| CN203275971U (en) * | 2013-04-27 | 2013-11-06 | 湖南科技大学 | Outdoor ground swarm-robot control system |
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