CN107783161A - A kind of method and system that GPS location effect is lifted using AGPS - Google Patents
A kind of method and system that GPS location effect is lifted using AGPS Download PDFInfo
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- CN107783161A CN107783161A CN201610771466.0A CN201610771466A CN107783161A CN 107783161 A CN107783161 A CN 107783161A CN 201610771466 A CN201610771466 A CN 201610771466A CN 107783161 A CN107783161 A CN 107783161A
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- China
- Prior art keywords
- agps
- data
- auxiliary positioning
- locating module
- agps data
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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
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
Abstract
A kind of method and system that GPS location effect is lifted using AGPS data, this method are downloaded AGPS data and carry out auxiliary positioning, preserved AGPS data and record the auxiliary positioning moment when locating module is started working；During locating module works, the AGPS data of timing renewal preservation, and stop renewal in locating module dormancy or closing；When locating module enters working condition from resting state, either continue duration surely not in place more than threshold value or continue surely not in place and when exceeding threshold value from the last auxiliary positioning duration, judge whether the AGPS data of preservation fail；If do not failed, auxiliary positioning is directly carried out, and records the auxiliary positioning moment；If failure, re-download AGPS data and carry out auxiliary positioning, preserve AGPS data and record the auxiliary positioning moment.The system includes the first data processing module, the second data processing module, the 3rd data processing module and judges locating module.The present invention can be repositioned quickly when GPS module loses star using AGPS, lift locating effect.
Description
Technical field
The present invention relates to vehicle information technologies field, and in particular to a kind of method that GPS location effect is lifted using AGPS
And system.
Background technology
Existing GPS（Global Positioning System）Location technology, when blocking for a long time, easily occur
Star phenomenon is lost, once lose star, it is necessary to detected by searching star for a long time, can just restart locating module and start to reposition, this meeting
Cause there is no positioning track during searching star detection.
The content of the invention
Therefore, the present invention, which provides one kind, utilizes AGPS（Assisted Global Positioning System）To be lifted
The method and system of GPS location effect, this method and system can avoid the occurrence of GPS and lose showing without positioning track during star detection
As so as to improve the usage experience that the GPS devices such as personal positioning easily lose the application scenarios of star.
Concrete scheme is as follows：
A kind of method that GPS location effect is lifted using AGPS, is comprised the following steps：
S1, when d GPS locating module is started working, empty the almanac data of d GPS locating module caching, download AGPS data and carry out
Auxiliary positioning, preserve AGPS data and record the auxiliary positioning moment；
S2, during d GPS locating module positions work, timing updates AGPS data and simultaneously records the auxiliary positioning moment, and determines in GPS
Stop renewal when position module dormancy or closing；
S3, enter working condition from resting state when d GPS locating module, or continue duration surely not in place and exceed threshold value, or
Person continues surely not in place and when exceeding threshold value from the last auxiliary positioning duration, empties the ephemeris number of d GPS locating module caching
According to；
Whether S4, the AGPS data for judging to preserve fail：If the AGPS data preserved do not fail, directly carry out aiding in determining
Position, and record the auxiliary positioning moment；If the AGPS data failures preserved, re-download AGPS data and carry out auxiliary positioning, protect
Deposit AGPS data and record the auxiliary positioning moment.
Wherein, the specific method whether the AGPS data preserved fail is judged in described step S4 is：
The difference at the auxiliary positioning moment recorded when obtaining d GPS locating module current time with preserving AGPS data；
If the difference more than AGPS data failure duration threshold values, judges AGPS data failures,
If the difference judges that AGPS data do not fail not less than AGPS data failure duration threshold values.
A kind of system that GPS location effect is lifted using AGPS, including：
First data processing module, it is configured to, when d GPS locating module is started working, empty the star of d GPS locating module caching
Count evidence one by one, download AGPS data and carry out auxiliary positioning, preserve AGPS data and record the auxiliary positioning moment,
Second data processing module, it is configured to during d GPS locating module positions work, timing updates AGPS data and recorded
The auxiliary positioning moment, and stop renewal in d GPS locating module dormancy or closing,
3rd data processing module, be configured to when d GPS locating module enters working condition from resting state, or continue it is fixed not
Duration in place exceedes threshold value, or continues surely not in place and when exceeding threshold value from the last auxiliary positioning duration, empties GPS
The almanac data of locating module caching；
Judge locating module, whether the AGPS data for being configured to judge to preserve fail：If the AGPS data preserved are not lost
Effect, directly carries out auxiliary positioning, and record the auxiliary positioning moment；If the AGPS data failures preserved, re-download AGPS numbers
According to auxiliary positioning is carried out, preserve AGPS data and record the auxiliary positioning moment.
Further, described judgement locating module is additionally operable to：D GPS locating module current time is obtained with preserving AGPS numbers
According to when the difference at auxiliary positioning moment that records；If the difference judges AGPS data more than AGPS data failure duration threshold values
Failure, if the difference judges that AGPS data do not fail not less than AGPS data failure duration threshold values.
Beneficial effects of the present invention are as follows：
(1) it when GPS device locating module loses star, can quickly be repositioned using AGPS, lift locating effect；
(2) when avoiding the need for carrying out AGPS auxiliary positionings to a certain extent, due to network service unsuccessfully etc. reason can not under
AGPS data are carried, cause no available situation of AGPS data.
Brief description of the drawings
Fig. 1 is the method flow block diagram of one embodiment of the invention；
Fig. 2 is the system block diagram of one embodiment of the invention.
Embodiment
To further illustrate each embodiment, the present invention is provided with accompanying drawing.These accompanying drawings are the invention discloses the one of content
Point, it can coordinate the associated description of specification to explain the operation principles of embodiment mainly to illustrate embodiment.Coordinate ginseng
These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.Now tie
Closing the drawings and specific embodiments, the present invention is further described.
Fig. 1 is the broad flow diagram of the method for the present invention, and the equipment that the method for the embodiment of the present invention is related to includes 1 GPS
Positioning terminal, 1 configuration tool and 1 AGPS auxiliary positionings center, wherein include in GPS location terminal：Locating module, timing
Device, communication module and memory cell；By configuration tool set AGPS data failures durations, continue delocalization duration threshold value with it is auxiliary
The time interval of positioning is helped, and GPS location terminal is sent to by means of communication, when GPS location terminal is by AGPS data failures
Long, lasting delocalization duration threshold value and auxiliary positioning interval are saved in memory cell.
The method of the embodiment of the present invention comprises the following steps that：
When S1, locating module are just started working, following operate is performed：
1. cold start-up empties the almanac data that module caches in itself；
2. downloading AGPS data from AGPS auxiliary positionings center by communication module, the AGPS data downloaded are saved in
In memory cell, and the record storage moment；
3. carrying out auxiliary positioning using AGPS data, and record the auxiliary positioning moment；
4. setting timer run time interval, AGPS data failure durations, and start timer；
When S2, timer operation, AGPS data are downloaded from AGPS auxiliary positionings center by communication module and are saved in memory cell
In, and update the storage moment；
When S3, locating module enter resting state or are stopped, Off Timer；
S4, locating module from resting state enter working condition when, restart timer；
S5, when locating module meet following three conditions for the moment, from memory cell take out AGPS data the storage moment, and
Compared with current time：
1. locating module enters working condition from resting state；
2. locating module is in running order, and continues duration surely not in place and exceed threshold value；
3. locating module is in running order, continue it is surely not in place, and the difference at current time and auxiliary positioning moment exceed it is auxiliary
Help positioning interval；
S6, the difference for obtaining current time and auxiliary positioning moment during AGPS data storages；
If the difference at auxiliary positioning moment is held more than AGPS data failure durations when S7, current time and AGPS data storages
Row is following to be operated：
1. cold start-up empties the almanac data that module caches in itself；
2. downloading AGPS data from AGPS auxiliary positionings center by communication module, the AGPS data downloaded are saved in
In memory cell, and the record storage moment；
3. carrying out auxiliary positioning using AGPS data, and record the auxiliary positioning moment；
If the difference at current time and auxiliary positioning moment during AGPS data storages is not above AGPS data failure durations, hold
Row is following to be operated：
1. cold start-up empties the almanac data that module caches in itself；
2. directly taking out AGPS data from memory cell carries out auxiliary positioning, and records the auxiliary positioning moment.
In addition, the present invention also proposes a kind of system that GPS location effect is lifted using AGPS, as shown in Fig. 2 it includes：
First data processing module, it is configured to, when d GPS locating module is started working, empty the star of d GPS locating module caching
Count evidence one by one, download AGPS data and carry out auxiliary positioning, preserve AGPS data and record the auxiliary positioning moment,
Second data processing module, it is configured to during d GPS locating module works, the AGPS data that timing renewal preserves, and
Stop renewal in d GPS locating module dormancy or closing；
3rd data processing module, be configured to when d GPS locating module enters working condition from resting state, or continue it is fixed not
Duration in place exceedes threshold value, or continues surely not in place and when exceeding threshold value from the last auxiliary positioning duration, empties GPS
The almanac data of locating module caching；
Judge locating module, whether the AGPS data for being configured to judge to preserve fail：If the AGPS data preserved are not lost
Effect, directly carries out auxiliary positioning, and record the auxiliary positioning moment；If the AGPS data failures preserved, re-download AGPS numbers
According to auxiliary positioning is carried out, preserve AGPS data and record the auxiliary positioning moment.
Further, described judgement locating module is additionally operable to：D GPS locating module current time is obtained with preserving AGPS numbers
According to when the difference at auxiliary positioning moment that records；If the difference judges AGPS data more than AGPS data failure duration threshold values
Failure, if the difference judges that AGPS data do not fail not less than AGPS data failure duration threshold values.
The present invention can be repositioned quickly when GPS device locating module loses star using AGPS, lift locating effect.
And because the timing to AGPS data preserves, when avoiding the need for carrying out AGPS auxiliary positionings to a certain extent, due to net
The reasons such as network communication failure can not download AGPS data, cause no available situation of AGPS data.
Although specifically showing and describing the present invention with reference to preferred embodiment, those skilled in the art should be bright
In vain, do not departing from the spirit and scope of the present invention that appended claims are limited, in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (4)
- A kind of 1. method that GPS location effect is lifted using AGPS, it is characterised in that comprise the following steps：S1, when d GPS locating module is started working, empty the almanac data of d GPS locating module caching, download AGPS data and carry out Auxiliary positioning, preserve AGPS data and record the auxiliary positioning moment；S2, during d GPS locating module positions work, timing updates AGPS data and simultaneously records the auxiliary positioning moment, and determines in GPS Stop renewal when position module dormancy or closing；S3, enter working condition from resting state when d GPS locating module, or continue duration surely not in place and exceed threshold value, or Person continues surely not in place and when exceeding threshold value from the last auxiliary positioning duration, empties the ephemeris number of d GPS locating module caching According to；Whether S4, the AGPS data for judging to preserve fail：If the AGPS data preserved do not fail, directly carry out aiding in determining Position, and record the auxiliary positioning moment；If the AGPS data failures preserved, re-download AGPS data and carry out auxiliary positioning, protect Deposit AGPS data and record the auxiliary positioning moment.
- 2. a kind of method that GPS location effect is lifted using AGPS according to claim 1, it is characterised in that described The specific method whether the AGPS data preserved fail is judged in step S4 is：The difference at the auxiliary positioning moment recorded when obtaining d GPS locating module current time with preserving AGPS data；If the difference more than AGPS data failure duration threshold values, judges AGPS data failures,If the difference judges that AGPS data do not fail not less than AGPS data failure duration threshold values.
- A kind of 3. system that GPS location effect is lifted using AGPS, it is characterised in that including：First data processing module, it is configured to, when d GPS locating module is started working, empty the star of d GPS locating module caching Count evidence one by one, download AGPS data and carry out auxiliary positioning, preserve AGPS data and record the auxiliary positioning moment,Second data processing module, it is configured to during d GPS locating module positions work, timing updates AGPS data and recorded The auxiliary positioning moment, and stop renewal in d GPS locating module dormancy or closing,3rd data processing module, be configured to when d GPS locating module enters working condition from resting state, or continue it is fixed not Duration in place exceedes threshold value, or continues surely not in place and when exceeding threshold value from the last auxiliary positioning duration, empties GPS The almanac data of locating module caching,Judge locating module, whether the AGPS data for being configured to judge to preserve fail：If the AGPS data preserved are not lost Effect, directly carries out auxiliary positioning, and record the auxiliary positioning moment；If the AGPS data failures preserved, re-download AGPS numbers According to auxiliary positioning is carried out, preserve AGPS data and record the auxiliary positioning moment.
- 4. a kind of system that GPS location effect is lifted using AGPS according to claim 3, it is characterised in that described Judge that locating module is additionally operable to：The auxiliary positioning moment recorded when obtaining d GPS locating module current time with preserving AGPS data Difference；If the difference judges AGPS data failures, if the difference is not less than AGPS more than AGPS data failure duration threshold values Data failure duration threshold value, then judge that AGPS data do not fail.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610771466.0A CN107783161A (en) | 2016-08-30 | 2016-08-30 | A kind of method and system that GPS location effect is lifted using AGPS |
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| CN201610771466.0A CN107783161A (en) | 2016-08-30 | 2016-08-30 | A kind of method and system that GPS location effect is lifted using AGPS |
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Cited By (2)
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| CN109270559A (en) * | 2018-08-27 | 2019-01-25 | 出门问问信息科技有限公司 | The method and device that a kind of pair of terminal is positioned |
| CN112492098A (en) * | 2019-08-20 | 2021-03-12 | RealMe重庆移动通信有限公司 | Positioning method and device, electronic equipment and storage medium |
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| CN109270559A (en) * | 2018-08-27 | 2019-01-25 | 出门问问信息科技有限公司 | The method and device that a kind of pair of terminal is positioned |
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Application publication date: 20180309 |