CN103728633B - A kind of method and device avoiding location loss - Google Patents
A kind of method and device avoiding location loss Download PDFInfo
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- CN103728633B CN103728633B CN201410028652.6A CN201410028652A CN103728633B CN 103728633 B CN103728633 B CN 103728633B CN 201410028652 A CN201410028652 A CN 201410028652A CN 103728633 B CN103728633 B CN 103728633B
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- server
- xtra
- assistance data
- positioning assistance
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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
Abstract
The present invention proposes a kind of method and the device of avoiding locating loss, the method comprises: the address of adding XTRA server in configuration file; When carrying out GPS location, when detect cannot obtain positioning assistance data from location server, therefrom obtain positioning assistance data, for quick position based on the XTRA server address access XTRA server in configuration file.This device comprises: configuration module and detection handover module.The present invention detect adopt AGPS mode position communication smooth time, the pattern positioned from XTRA server acquisition positioning assistance data can be automatically switched to, avoid the failure of AGPS mode downloaded assistance data and the location of causing is lost, and then avoid occurring that navigation is interrupted or failure.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of method and the device of avoiding locating loss.
Background technology
Existing mobile terminal such as mobile phone is in order to accelerate GPS(Global Positioning System, GPS) locating speed, shorten primary positioning time, introduce AGPS(Assisted Global Positioning System, auxiliary global satellite positioning system) relevant location server, search in the process of star in GPS module, by the positioning assistance data such as ephemeris, year calendar of mobile communications network download location server end, accelerate locating speed; This scheme needs to depend on mobile communications network, and mobile terminal also has corresponding requirement to the communication between location-server simultaneously.
There is following defect in existing GPS targeting scheme:
1) use AGPS mode to locate to need to be communicated with location server by mobile communications network, positioning assistance data is downloaded from location server, when network condition is bad, easily cause communication not smooth, thus can completely does not download positioning assistance data, causes easily causing dropout when navigating;
2) existing mobile terminal is when the location server using AGPS relevant, such as: CDMA(CDMACode Division Multiple Access, CDMA) mobile phone uses PDE(PositionDetermination Entity, position determination unit) positioning assistance data that provides of server, UMTS(Universal Mobile Telecommunications System, universal mobile telecommunications system) mobile phone uses SUPL(Secure User Plane Location, secure user plane is located) positioning assistance data that provides of server, under a kind of mobile phone of network formats enters other network, there will be the location server that search is correlated with less than the AGPS configured in mobile phone, mobile phone just can not communicate with location server, thus easily cause navigation to occur dropout,
3) when using AGPS mode to communicate, the scheme of Qualcomm is that mobile terminal once can communicate 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 when can not communicate with location server smoothly in this communication process of every five minutes, then navigate and easily occur dropout.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of method and the device of avoiding locating loss, ensures carrying out smoothly of GPS navigation positioning service.
The technical solution used in the present invention is, described in avoid locate lose method, comprising:
In configuration file, add XTRA(eXTended Receiver Assistance, extend receive auxiliary) address of server;
When carrying out GPS location, when detect cannot obtain positioning assistance data from location server, therefrom obtain positioning assistance data, for quick position based on the XTRA server address access XTRA server in configuration file.
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 condition of inquiry terminal equipment, finds that current mobile communications network is in the state of disconnecting;
Detect that the mobile communications network that terminal device is registered and the mobile communications network residing for location server are not inconsistent; And,
The connection between that terminal device is regularly initiated and location server or downloading data failure detected.
Further, by mobile communications network or IP(Internet Protocol, Internet protocol) network or radio broadcast network access XTRA server.
Further, detect mobile network code, MNC and mobile country code inconsistent time, judge that the mobile communications network of terminal device registration and mobile communications network residing for location server are not inconsistent.
Further, the kind of location server comprises: PDE server and SUPL service device;
Positioning assistance data comprises: satellite almanac data and almanac data.
Further, described method also comprises:
When getting positioning assistance data, carry out quick position based on this positioning assistance data; When XTRA server cannot be accessed to obtain positioning assistance data, directly carry out GPS location.
The present invention also provides a kind of avoiding to locate the device lost, and comprising:
Configuration module, for adding the address of XTRA server in configuration file;
Detect handover module, for when carrying out GPS location, when detect cannot obtain positioning assistance data from location server, therefrom obtain positioning assistance data, for quick position based on the XTRA server address access XTRA server in configuration file.
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 condition of inquiry terminal equipment, finds that current mobile communications network is in the state of disconnecting;
Detect that the mobile communications network that terminal device is registered and the mobile communications network residing for location server are not inconsistent; And,
The connection between that terminal device is regularly initiated and location server or downloading data failure detected.
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: detect mobile network code, MNC and mobile country code inconsistent time, judge that the mobile communications network of terminal device registration and mobile communications network residing for location server are not inconsistent.
Further, the kind of location server comprises: PDE server and SUPL service device;
Positioning assistance data comprises: satellite almanac data and almanac data.
Further, described device, also comprises:
Locating module, for when getting positioning assistance data, carries out quick position based on this positioning assistance data; When XTRA server cannot be accessed to obtain positioning assistance data, directly carry out GPS location.
Adopt technique scheme, the present invention at least has following advantages:
Method and the device avoiding location loss of the present invention, detect adopt AGPS mode position communication smooth time, automatically switch to the pattern positioned from XTRA server acquisition positioning assistance data, avoid the failure of AGPS mode downloaded assistance data and the location of causing is lost, and then avoid occurring that navigation is interrupted or failure.
Accompanying drawing explanation
Fig. 1 is the method flow diagram avoiding locating loss of first embodiment of the invention;
Fig. 2 is that device composition schematic diagram is lost in the location of avoiding of second embodiment of the invention;
Fig. 3 is the system composition schematic diagram avoiding locating loss of application example of the present invention;
Fig. 4 is the process flow diagram avoiding locating the system execution of losing of application example of the present invention.
Embodiment
For further setting forth the present invention for the technological means reaching predetermined object and take and effect, 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 is the ephemeris year calendar server of Qualcomm at global deployment, terminal device in any place, use various network such as mobile communications network, IP network etc. to access.
Because prior art is given tacit consent to usually adopt AGPS mode, namely when terminal device carries out GPS location, first GPS module removes location server such as access PDE server and SUPL service device etc., therefrom obtain positioning assistance data, comprise: the satellite almanac data of gps system and almanac data, terminal device can be made to know the satellite that its location is corresponding fast by these positioning assistance datas, thus realize quick position.Compared to pure GPS mode, the technical scheme of the embodiment of the present invention shortens terminal device greatly and searches for 20 multi-satellites of gps system one by one and obtain the time that navigation message carries out processing.Location server is disposed respectively by different operators, may be subject to certain restrictions when accessing and using, and be communicated by mobile communication network with terminal device such as mobile phone, if because network reason causes data service unavailable, or network formats does not conform to, or the factors such as the communication of terminal device and location server itself is not smooth, causing terminal device can not obtain positioning assistance data from location server in time causes navigation to be interrupted or failure, it is the improvement done the function of GPS module in terminal device that the embodiment of the present invention can be understood as, make it when positioning assistance data cannot be obtained from location server, can turn to immediately and obtain positioning assistance data from XTRA server, continue to realize quick position.
First embodiment of the invention, a kind of avoiding locates the method for losing, and as shown in Figure 1, comprises following concrete steps:
Step S101, adds the address of XTRA server in configuration file.
Step S102, when carrying out GPS location, when detect cannot obtain positioning assistance data from location server, therefrom obtain positioning assistance data, for quick position based on the XTRA server address access XTRA server in configuration file.
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 condition of inquiry terminal equipment, finds that current mobile communications network is in the state of disconnecting;
Detect that the mobile communications network that terminal device is registered and the mobile communications network residing for location server are not inconsistent; And,
The connection between that terminal device is regularly initiated and location server or downloading data failure detected.
Further, XTRA server can be conducted 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 being detected and mobile country code is inconsistent, can judge that the mobile communications network that terminal device is registered and the mobile communications network residing for location server are not inconsistent.
Above step S101 ~ 102 can be implemented as a complete technical scheme, and preferably, the described method of the present embodiment, also comprises:
Step S103, when getting positioning assistance data, carries out quick position based on this positioning assistance data; When XTRA server cannot be accessed to obtain positioning assistance data, directly carry out GPS location.
Concrete, GPS location mentioned here refers to terminal device when not by positioning assistance data, directly and between satellite directly adopts pure GPS mode to position.
Second embodiment of the invention, a kind of avoiding locates the device lost, and as shown in Figure 2, comprises following ingredient:
1) configuration module 100, for adding the address of XTRA server in configuration file.
2) handover module 200 is detected, for when carrying out GPS location, when detect cannot obtain positioning assistance data from location server, therefrom obtain positioning assistance data, for quick position based on the XTRA server address access XTRA server in configuration file.
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 condition of inquiry terminal equipment, finds that current mobile communications network is in the state of disconnecting;
Detect that the mobile communications network that terminal device is registered and the mobile communications network residing for location server are not inconsistent; And,
The connection between that terminal device is regularly initiated and location server or downloading data failure detected.
Further, handover module 200 is detected by mobile communications network or IP network or radio broadcast network access XTRA server;
Detecting handover module 200 when mobile network code, MNC being detected and mobile country code is inconsistent, judging that the mobile communications network of terminal device registration and the mobile communications network residing for location server are not inconsistent.
In the present embodiment, the kind of location server comprises: PDE server and SUPL service device.Positioning assistance data comprises: satellite almanac data and almanac data.
3) locating module 300, for when getting positioning assistance data, carries out quick position based on this positioning assistance data; Preferably, when XTRA server cannot be accessed to obtain positioning assistance data, directly carry out GPS location.
Concrete, GPS location mentioned here refers to terminal device when not by positioning assistance data, directly and between satellite directly adopts pure GPS mode to position.
Below based on first and second embodiment, introduce an application example of the present invention.
As shown in Figure 3, the system of locating loss of avoiding of this application example forms primarily 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 the config option controlling to use 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 AGPS need the PDE server of use, the address of SUPL service device and port, use for during these location servers of connection;
Be supplied to 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 the address of adding upper XTRA server, thus when carrying out GPS location, can trigger and downloading positioning assistance data from this XTRA server, accelerating the locating speed of GPS.
Two, detection module:
This module mainly detects: whether current mobile communications network condition connects, whether the network of present terminal facility registration conforms to the network of location server, whether mobile terminal regularly can initiate with the connection of terminal device and successfully download the contents such as positioning assistance data.Detailed Detection of content is as follows:
The first situation: detect current network conditions, see and be in connect or disconnect state, thus judge that whether current data service is normal, whether can carry out downloading data, if current data service is unavailable, then trigger handover module;
Second case: the network condition detecting registration, by APN(Access Point Name, access point) identify mobile network code, MNC mnc, the mobile country code mcc parameter of registration when dialling, when judging the current registered network be in, compare with the location server arranged, if the location server arranged and the current registered network standard be in are not inconsistent, then current registered network can not be used to carry out link position server, trigger handover module;
The third situation: detect the communication conditions when the communication between location server is initiated in terminal device active at set intervals, be confirmed whether to connect, and whether can download positioning assistance data from location server, if connection failure or downloaded assistance data failure detected, then trigger handover module.
If above-mentioned three kinds of situations all do not occur, then still carry out quick position according to GPS+AGPS mode.
Three, handover module:
When triggering handover module work by detection module, handover module is by reading the configuration item of the GPS+XTRA mode in configuration module, positioning assistance data is obtained to XTRA server, the positioning assistance data provided based on XTRA server carries out quick position, avoid in navigation procedure with the dropout occurred when location server communication failure, ensure navigation can carry out smoothly.
The above scheme of this application example is mainly by arranging a configuration module, and this module is supplied to handover module and calls, and selects different targeting schemes for it; Detection module detect data service situation, registered network situation, with location server signal intelligence, thus judge whether to trigger handover module; GPS+AGPS mode is switched to GPS+XTRA mode by handover module, avoids occurring that gps signal is lost.
As above shown in process flow diagram, three configuration items are set in configuration module, carry out reading for handover module to call, first judge whether current situation can not carry out use AGPS and carry out navigator fix according to situation about detecting at detection module, then enable this station-keeping mode of GPS+XTRA in this way, avoid GPS module can not obtain auxiliary data always, and can not locate within this time period, cause occurring that gps signal loses the situation that can not continue to navigate caused.
Avoid described in the embodiment of the present invention locate lose method and apparatus and application example of the present invention in described system, detect adopt AGPS mode position communication smooth time, automatically switch to the pattern positioned from XTRA server acquisition positioning assistance data, avoid the failure of AGPS mode downloaded assistance data and the location of causing is lost, and then avoid occurring that navigation is interrupted or failure.
By the explanation of embodiment, should to the present invention for the technological means reaching predetermined object and take and effect be able to more deeply and concrete understanding, but appended diagram be only to provide with reference to and the use of explanation, be not used for being limited the present invention.
Claims (10)
1. avoid locating a method of losing, it is characterized in that, comprising:
The address extending and receive auxiliary XTRA server is added in configuration file;
When carrying out global position system GPS location, when detect cannot obtain positioning assistance data from location server, therefrom obtain the positioning assistance data being used for quick position based on the XTRA server address access XTRA server in configuration file; The kind of location server comprises: position determination unit PDE server and secure user plane location SUPL service device;
By Internet protocol IP network or radio broadcast network access XTRA server;
Described method also comprises: when getting positioning assistance data, carries out quick position based on this positioning assistance data; When XTRA server cannot be accessed to obtain positioning assistance data, directly carry out GPS location.
2. according to claim 1 avoiding locates the method for losing, and it 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 condition of inquiry terminal equipment, finds that current mobile communications network is in the state of disconnecting;
Detect that the mobile communications network that terminal device is registered and the mobile communications network residing for location server are not inconsistent; And,
The connection between that terminal device is regularly initiated and location server or downloading data failure detected.
3. according to claim 2 avoiding locates the method for losing, and it is characterized in that, or, by mobile communications network access XTRA server.
4. according to claim 2 avoiding locates the method for losing, and it is characterized in that, detect mobile network code, MNC and mobile country code inconsistent time, judge that the mobile communications network of terminal device registration and mobile communications network residing for location server are not inconsistent.
5. according to claim 1 avoiding locates the method for losing, and it is characterized in that, positioning assistance data comprises: satellite almanac data and almanac data.
6. avoid locating the device lost, it is characterized in that, comprising:
Configuration module, for adding the address of XTRA server in configuration file;
Detect handover module, for when carrying out GPS location, when detect cannot obtain positioning assistance data from location server, therefrom obtain the positioning assistance data being used for quick position based on the XTRA server address access XTRA server in configuration file; The kind of location server comprises: PDE server and SUPL service device;
Described detection handover module, specifically for: by IP network or radio broadcast network access XTRA server;
Described device, also comprises: locating module, for when getting positioning assistance data, carries out quick position based on this positioning assistance data; When XTRA server cannot be accessed to obtain positioning assistance data, directly carry out GPS location.
7. according to claim 6 avoiding locates the device lost, and it 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 condition of inquiry terminal equipment, finds that current mobile communications network is in the state of disconnecting;
Detect that the mobile communications network that terminal device is registered and the mobile communications network residing for location server are not inconsistent; And,
The connection between that terminal device is regularly initiated and location server or downloading data failure detected.
8. according to claim 7 avoiding locates the device lost, and it is characterized in that, or, described detection handover module, specifically for: by mobile communications network access XTRA server.
9. according to claim 7 avoiding locates the device lost, it is characterized in that, described detection handover module, specifically for: detect mobile network code, MNC and mobile country code inconsistent time, judge that the mobile communications network of terminal device registration and mobile communications network residing for location server are not inconsistent.
10. according to claim 6 avoiding locates the device lost, and it is characterized in that, positioning assistance data comprises: satellite almanac data and almanac data.
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| CN201410028652.6A CN103728633B (en) | 2014-01-22 | 2014-01-22 | A kind of method and device avoiding location loss |
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| CN104050832B (en) * | 2014-05-23 | 2017-06-20 | 北京中交兴路信息科技有限公司 | The complementing method and device of positional information |
| 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 |
| CN108663700B (en) * | 2018-08-10 | 2020-07-24 | 吉利汽车研究院（宁波）有限公司 | GPS signal loss 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 |
| CN113568013B (en) * | 2021-01-20 | 2022-05-20 | 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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