CN103728633A - Method and device for avoiding location loss - Google Patents
Method and device for avoiding location loss Download PDFInfo
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- CN103728633A CN103728633A CN201410028652.6A CN201410028652A CN103728633A CN 103728633 A CN103728633 A CN 103728633A CN 201410028652 A CN201410028652 A CN 201410028652A CN 103728633 A CN103728633 A CN 103728633A
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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
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
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- Radar, Positioning & Navigation (AREA)
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Abstract
The invention provides a method and a device for avoiding location loss. The method includes adding an XTRA server address in a configuration file; accessing the XTRA server and acquiring location auxiliary data from the server for fast location based on the XTRA address in the configuration file under the condition that the device detects that location auxiliary data cannot be obtained from a position server when global position system location is conducted. The device comprises a configuration module and a detection switching module. When the device detects that location communication conducted by adopting the AGPS mode is not smooth, location loss caused by the fact that auxiliary data downloading in the AGPS mode fails is avoided, and navigation interruption or failure is further avoided.
Description
Technical field
The present invention relates to mobile communication technology field, relate in particular to a kind of method and device of avoiding location to lose.
Background technology
Existing mobile terminal is such as mobile phone is in order to accelerate GPS(Global Positioning System, GPS) locating speed, shorten primary positioning time, introduced AGPS(Assisted Global Positioning System, auxiliary global satellite positioning system) relevant location server, in GPS module, search in the process of star, the positioning assistance datas such as the ephemeris by mobile communications network download location server end, year calendar, accelerate locating speed; This scheme need to depend on mobile communications network, and simultaneously communicating by letter between mobile terminal and location-server also has corresponding requirement.
There is following defect in existing GPS targeting scheme:
1) use AGPS mode to locate and need to communicate by mobile communications network and location server, from location server, download positioning assistance data, when network condition is bad, easily cause communication not smooth, thereby can completely is not downloaded positioning assistance data, causes easily causing dropout when navigating;
2) existing mobile terminal is when being used the relevant location server of AGPS, for example: CDMA(CDMA Code Division Multiple Access, that CDMA) mobile phone uses is PDE(Position Determination Entity, position determination unit) positioning assistance data that server provides, UMTS(Universal Mobile Telecommunications System, that universal mobile telecommunications system) mobile phone uses is SUPL(Secure User Plane Location, secure user plane location) positioning assistance data that server provides, when a kind of mobile phone of network formats enters under other network, there will be search less than the relevant location server of the AGPS configuring in mobile phone, mobile phone just can not communicate with location server, thereby easily cause navigation to occur dropout,
3) while using AGPS mode to communicate, the scheme of Qualcomm is that mobile terminal can once be communicated by letter with location server for every five minutes, download the positioning assistance datas such as current up-to-date ephemeris, year calendar, accelerate location, if but can not smoothly and location server communicates in this communication process of every five minutes time, easily there is dropout in navigation.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of method and device of avoiding location to lose is provided, and guarantees carrying out smoothly of GPS navigation positioning service.
The technical solution used in the present invention is, described in avoid location to lose method, comprising:
In configuration file, add XTRA(eXTended Receiver Assistance, extend to receive auxiliary) address of server;
When carrying out GPS when location, detecting cannot obtain positioning assistance data from location server in the situation that, the XTRA server address access XTRA server based in configuration file also therefrom obtains positioning assistance data, for quick location.
Further, one of following for judging that the concrete detection event that cannot obtain positioning assistance data from location server at least comprises:
The current mobile communications network situation of inquiry terminal equipment, finds that current mobile communications network is in disconnecting state;
Mobile communications network and the residing mobile communications network of location server that terminal device registration detected are not inconsistent; And,
Detect that terminal device regularly initiates with location server between be connected or downloading data failure.
Further, by mobile communications network or IP(Internet Protocol, Internet protocol) network or radio broadcast network access XTRA server.
Further, mobile network code, MNC and mobile country code detected when inconsistent, judge that mobile communications network and the residing mobile communications network of location server of terminal device registration is not inconsistent.
Further, the kind of location server comprises: PDE server and SUPL server;
Positioning assistance data comprises: satellite almanac data and almanac data.
Further, described method also comprises:
When getting positioning assistance data, based on this positioning assistance data, locate fast; Accessing XTRA server to obtain positioning assistance data in the situation that, directly carry out GPS location.
The present invention also provides a kind of device of avoiding location to lose, comprising:
Configuration module, for adding the address of XTRA server at configuration file;
Detect handover module, for when carrying out GPS location, detecting cannot obtain positioning assistance data from location server in the situation that, the XTRA server address access XTRA server based in configuration file also therefrom obtains positioning assistance data, for quick location.
Further, described detection handover module is one of following for judging that the concrete detection event that cannot obtain positioning assistance data from location server at least comprises:
The current mobile communications network situation of inquiry terminal equipment, finds that current mobile communications network is in disconnecting state;
Mobile communications network and the residing mobile communications network of location server that terminal device registration detected are not inconsistent; And,
Detect that terminal device regularly initiates with location server between be connected or downloading data failure.
Further, described detection handover module, specifically for: by mobile communications network or IP network or radio broadcast network access XTRA server.
Further, described detection handover module, specifically for: mobile network code, MNC and mobile country code detected when inconsistent, judge that mobile communications network and the residing mobile communications network of location server of terminal device registration is not inconsistent.
Further, the kind of location server comprises: PDE server and SUPL server;
Positioning assistance data comprises: satellite almanac data and almanac data.
Further, described device, also comprises:
Locating module, for when getting positioning assistance data, locates fast based on this positioning assistance data; Accessing XTRA server to obtain positioning assistance data in the situation that, directly carry out GPS location.
Adopt technique scheme, the present invention at least has following advantages:
Method and the device of avoiding location to lose of the present invention, adopt AGPS mode to position communication when smooth detecting, automatically switch to from XTRA server and obtain the pattern that positioning assistance data positions, lose the location of avoiding the failure of AGPS mode downloaded assistance data and causing, and then avoid occurring that navigation is interrupted or failure.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of avoiding location to lose of first embodiment of the invention;
Fig. 2 is that installation composition schematic diagram is lost in the location of avoiding of second embodiment of the invention;
Fig. 3 is that the system that lose location of avoiding of application example of the present invention forms schematic diagram;
Fig. 4 is the process flow diagram that the system of avoiding location loss of application example of the present invention is carried out.
Embodiment
For further setting forth the present invention, reach technological means and the effect that predetermined object is taked, below in conjunction with accompanying drawing and preferred embodiment, the present invention is described in detail as after.
First introduce the related content of XTRA server, XTRA server be Qualcomm at the ephemeris year calendar server of global deployment, terminal device in any place, use diverse network such as mobile communications network, IP network etc. can be accessed.
Because prior art is given tacit consent to the AGPS mode that adopts conventionally, be that terminal device carries out GPS when location, first GPS module removes to access the location servers such as PDE server and SUPL server, therefrom obtain positioning assistance data, comprise: the satellite almanac data of gps system and almanac data, by these positioning assistance datas, can make terminal device know fast the satellite that its location is corresponding, thereby realize location fast.Compared to pure GPS mode, the technical scheme of the embodiment of the present invention has shortened greatly terminal device and has searched for one by one 20 multi-satellites of gps system and obtain the time that navigation message is processed.Location server is to be disposed respectively by different operators, when being used, access may be subject to certain restrictions, and with terminal device such as mobile phone is to communicate by mobile communication network, if because network reason causes data service unavailable, or network formats does not conform to, or the factors such as terminal device is not smooth with communicating by letter of location server itself, causing terminal device from location server, not obtain positioning assistance data in time causes navigation to be interrupted or failure, it is the improvement that the function of GPS module in terminal device is done that the embodiment of the present invention can be understood as, make it in the situation that cannot obtaining positioning assistance data from location server, can turn to immediately from XTRA server and obtain positioning assistance data, continue to realize location fast.
First embodiment of the invention, a kind of method of avoiding location to lose, as shown in Figure 1, comprises following concrete steps:
Step S101, the address of adding XTRA server in configuration file.
Step S102, when carrying out GPS when location, is detecting cannot obtain positioning assistance data from location server in the situation that, and the XTRA server address access XTRA server based in configuration file also therefrom obtains positioning assistance data, for quick location.
Concrete, in step S102, one of following for judging that the concrete detection event that cannot obtain positioning assistance data from location server at least comprises:
The current mobile communications network situation of inquiry terminal equipment, finds that current mobile communications network is in disconnecting state;
Mobile communications network and the residing mobile communications network of location server that terminal device registration detected are not inconsistent; And,
Detect that terminal device regularly initiates with location server between be connected or downloading data failure.
Further, XTRA server can conduct interviews by mobile communications network or IP network or radio broadcast network, and wherein IP network can comprise wired and wireless two kinds of forms.
When mobile network code, MNC and mobile country code being detected when inconsistent, can judge that mobile communications network and the residing mobile communications network of location server of terminal device registration is not inconsistent.
Above step S101～102 can be used as a complete technical scheme and have implemented, and preferred, the described method of the present embodiment, also comprises:
Step S103, when getting positioning assistance data, locates fast based on this positioning assistance data; Accessing XTRA server to obtain positioning assistance data in the situation that, directly carry out GPS location.
Concrete, said GPS location refers to terminal device not by positioning assistance data in the situation that here, directly and between satellite, directly adopt pure GPS mode to position.
Second embodiment of the invention, a kind of device of avoiding location to lose, as shown in Figure 2, comprises following ingredient:
1) configuration module 100, for add the address of XTRA server at configuration file.
2) detect handover module 200, for when carrying out GPS location, detecting cannot obtain positioning assistance data from location server in the situation that, the XTRA server address access XTRA server based in configuration file also therefrom obtains positioning assistance data, for quick location.
Concrete, detect handover module 200 one of following for judging that the concrete detection event that cannot obtain positioning assistance data from location server at least comprises:
The current mobile communications network situation of inquiry terminal equipment, finds that current mobile communications network is in disconnecting state;
Mobile communications network and the residing mobile communications network of location server that terminal device registration detected are not inconsistent; And,
Detect that terminal device regularly initiates with location server between be connected or downloading data failure.
Further, detect handover module 200 by mobile communications network or IP network or radio broadcast network access XTRA server;
Detect handover module 200 mobile network code, MNC and mobile country code being detected when inconsistent, judge that mobile communications network and the residing mobile communications network of location server of terminal device registration is not inconsistent.
In the present embodiment, the kind of location server comprises: PDE server and SUPL server.Positioning assistance data comprises: satellite almanac data and almanac data.
3) locating module 300, for when getting positioning assistance data, based on this positioning assistance data, locate fast; Preferably, accessing XTRA server to obtain positioning assistance data in the situation that, directly carry out GPS location.
Concrete, said GPS location refers to terminal device not by positioning assistance data in the situation that here, directly and between satellite, directly adopt pure GPS mode to position.
Based on first and second embodiment, introduce an application example of the present invention below.
As shown in Figure 3, the system of avoiding location to lose of this application example is mainly comprised of three large modules, configuration module, detection module and handover module, wherein, the function class of this configuration module is similar to the configuration module in the second embodiment, and the function class of detection module and handover module is similar to the detection handover module in the second embodiment.The execution flow process of this system as shown in Figure 4.
One, configuration module a: configuration file is set in configuration module, in this configuration file, need to arrange and control the config option that uses GPS+AGPS mode, pure GPS mode and GPS+XTRA mode, in GPS+XTRA mode, comprise this service data downloading mode of XTRA.
Concrete, the facilities of the config option of GPS+AGPS mode is as follows:
In this configuration file, add the PDE server that AGPS need to use, address and the port of SUPL server, use when connecting these location servers;
Offer detection module and call different config options, enable different locator meamss.
The facilities of the config option of GPS+XTRA mode is as follows:
In this configuration file, need to add the address of upper XTRA server, thereby can when carry out GPS location, trigger and download positioning assistance data from this XTRA server, accelerate the locating speed of GPS.
Two, detection module:
This module is mainly to detect: whether current mobile communications network situation connects, whether the network of current terminal device registration conforms to the network of location server, whether mobile terminal can regularly initiate is also successfully downloaded the contents such as positioning assistance data with being connected of terminal device.Detection of content is as follows in detail:
The first situation: detect current network situation, see in connect or disconnect state, thereby judge that whether current data service is normal whether can carry out downloading data, if current data service is unavailable, trigger handover module;
Second case: the network condition that detects registration, by APN(Access Point Name, mobile network code, MNC mnc, the mobile country code mcc parameter of identification registration while access point) dialling, judge current in registered network time, compare with the location server arranging, if the location server arranging with current in registered network standard be not inconsistent, can not carry out with current registered network link position server, triggering handover module;
The third situation: detect terminal device at set intervals initiatively initiate with location server between communicate by letter time communication conditions, be confirmed whether to connect, and whether can download positioning assistance data from location server, if connection failure or downloaded assistance data failure detected, trigger handover module.
If above-mentioned three kinds of situations all do not occur, still according to GPS+AGPS mode, locate fast.
Three, handover module:
While triggering handover module work by detection module, handover module is by reading the configuration item of the GPS+XTRA mode in configuration module, to XTRA server, obtain positioning assistance data, the positioning assistance data providing based on XTRA server is located fast, avoided in navigation procedure the dropout occurring in the situation with location server communication failure, guaranteed that navigation can carry out smoothly.
The above scheme of this application example is mainly by a configuration module is set, and this module offers handover module and calls, and for it, selects different targeting schemes; Detection module detect data service situation, registered network situation, with location server signal intelligence, thereby judge whether to trigger handover module; Handover module is switched to GPS+XTRA mode by GPS+AGPS mode, avoids occurring gps signal loss.
As above shown in process flow diagram, three configuration items are set in configuration module, for handover module, read and call, at detection module, first according to situation about detecting, judge whether current situation can not use AGPS to carry out navigator fix, enable in this way this station-keeping mode of GPS+XTRA, avoid GPS module can not obtain auxiliary data always, and can not locate within this time period, cause the situation that can not continue navigation that occurs that gps signal loss causes.
Described in the embodiment of the present invention, avoid the method and apparatus of location loss and the described system in application example of the present invention, adopt AGPS mode to position communication when smooth detecting, automatically switch to from XTRA server and obtain the pattern that positioning assistance data positions, lose the location of avoiding the failure of AGPS mode downloaded assistance data and causing, and then avoid occurring that navigation is interrupted or failure.
By the explanation of embodiment, should be to reach technological means and the effect that predetermined object takes to be able to more deeply and concrete understanding to the present invention, yet appended diagram be only to provide with reference to the use with explanation, be not used for the present invention to be limited.
Claims (12)
1. a method of avoiding location to lose, is characterized in that, comprising:
In configuration file, add and extend the address that receives auxiliary XTRA server;
When carrying out global position system GPS when location, detecting cannot obtain positioning assistance data from location server in the situation that, the XTRA server address access XTRA server based in configuration file also therefrom obtains for the positioning assistance data of location fast.
2. the method for avoiding location to lose according to claim 1, is characterized in that, one of following for judging that the concrete detection event that cannot obtain positioning assistance data from location server at least comprises:
The current mobile communications network situation of inquiry terminal equipment, finds that current mobile communications network is in disconnecting state;
Mobile communications network and the residing mobile communications network of location server that terminal device registration detected are not inconsistent; And,
Detect that terminal device regularly initiates with location server between be connected or downloading data failure.
3. the method for avoiding location to lose according to claim 2, is characterized in that, by mobile communications network or Internet protocol IP network or radio broadcast network access XTRA server.
4. the method for avoiding location to lose according to claim 2, is characterized in that, mobile network code, MNC and mobile country code detected when inconsistent, judges that mobile communications network and the residing mobile communications network of location server of terminal device registration is not inconsistent.
5. the method for avoiding location to lose according to claim 1, is characterized in that, the kind of location server comprises: position determination unit PDE server and secure user plane location SUPL server;
Positioning assistance data comprises: satellite almanac data and almanac data.
6. according to the method for avoiding location to lose described in any one in claim 1～5, it is characterized in that, described method also comprises:
When getting positioning assistance data, based on this positioning assistance data, locate fast; Accessing XTRA server to obtain positioning assistance data in the situation that, directly carry out GPS location.
7. a device of avoiding location to lose, is characterized in that, comprising:
Configuration module, for adding the address of XTRA server at configuration file;
Detect handover module, for when carrying out GPS location, detecting cannot obtain positioning assistance data from location server in the situation that, the XTRA server address access XTRA server based in configuration file also therefrom obtains for the positioning assistance data of location fast.
8. the device of avoiding location to lose according to claim 7, is characterized in that, described detection handover module is one of following for judging that the concrete detection event that cannot obtain positioning assistance data from location server at least comprises:
The current mobile communications network situation of inquiry terminal equipment, finds that current mobile communications network is in disconnecting state;
Mobile communications network and the residing mobile communications network of location server that terminal device registration detected are not inconsistent; And,
Detect that terminal device regularly initiates with location server between be connected or downloading data failure.
9. the device of avoiding location to lose according to claim 8, is characterized in that, described detection handover module, specifically for: by mobile communications network or IP network or radio broadcast network access XTRA server.
10. the device of avoiding location to lose according to claim 8, it is characterized in that, described detection handover module, specifically for: mobile network code, MNC and mobile country code detected when inconsistent, judge that mobile communications network and the residing mobile communications network of location server of terminal device registration is not inconsistent.
11. devices of avoiding location to lose according to claim 7, is characterized in that, the kind of location server comprises: PDE server and SUPL server;
Positioning assistance data comprises: satellite almanac data and almanac data.
12. according to the device of avoiding location to lose described in any one in claim 7～11, it is characterized in that, described device, also comprises:
Locating module, for when getting positioning assistance data, locates fast based on this positioning assistance data; Accessing XTRA server to obtain positioning assistance data in the situation that, directly carry out GPS location.
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Cited By (6)
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| CN104050832A (en) * | 2014-05-23 | 2014-09-17 | 北京中交兴路信息科技有限公司 | Position information completion method and device |
| CN105245587A (en) * | 2015-09-28 | 2016-01-13 | 武汉钢铁(集团)公司 | Dispatch scheduling method and electronic device |
| CN105652237A (en) * | 2016-01-13 | 2016-06-08 | 广东欧珀移动通信有限公司 | Positioning method and device of mobile terminal, and mobile terminal |
| CN108663700A (en) * | 2018-08-10 | 2018-10-16 | 吉利汽车研究院（宁波）有限公司 | A kind of GPS signal loses processing system and method |
| CN111308516A (en) * | 2020-01-22 | 2020-06-19 | 上海移远通信技术股份有限公司 | TTFF pressure testing method, system, equipment and medium of communication module |
| CN113568013A (en) * | 2021-01-20 | 2021-10-29 | 腾讯科技（深圳）有限公司 | Terminal positioning method and device, electronic equipment and computer readable storage medium |
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