CN101799528B - Positioning device and method - Google Patents
Positioning device and method Download PDFInfo
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- CN101799528B CN101799528B CN200910008674A CN200910008674A CN101799528B CN 101799528 B CN101799528 B CN 101799528B CN 200910008674 A CN200910008674 A CN 200910008674A CN 200910008674 A CN200910008674 A CN 200910008674A CN 101799528 B CN101799528 B CN 101799528B
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Abstract
The invention discloses positioning device and method which can provide stable and reliable positioning information and shorten time for positioning. The positioning device comprises a wireless communication module, a storage unit, a positioning module and a control unit, wherein the wireless communication module is used for generating a detecting signal; the storage unit is coupled with the wireless communication module and used for storing auxiliary positioning data; the positioning module is coupled with the storage unit and used for generating coordinate information according to a satellite signal and the auxiliary positioning data; the control unit is coupled with the wireless communication module; the storage unit and the positioning module are used for judging whether the auxiliary positioning data is effective or not, and if the auxiliary positioning data is ineffective, the control unit controls the wireless communication module to generate the detecting signal.
Description
Technical field
The present invention relates to a kind of locating device and method, refer to a kind of locating device and method that can receive the coordinate information of effective auxiliary positioning data and/or positioning result conduct itself especially from other locating device.
Background technology
(global positioning system GPS), is the satellite navigation system of the round track of a kind of middle distance to GPS.General GPS operates in six orbital planes respectively by 24 gps satellite crowds that operate in space, carries out the triangle location.And every satellite transmits signal all the time and goes back to the GPS terminal, and these signals comprise coordinate, time and other parameter, and the accurate key of the elements of a fix of these signals system.
Therefore, and agps system (assisted global positioning system AGPS) is developed, the signal that its cellular base station capable of using is sent, and traditional gps satellite signal of arranging in pairs or groups is accelerated locating speed.In the AGPS network, the communication that receiver sees through secondary server obtains auxiliary positioning data, so the more traditional gps system speed of locating speed is faster, and has more high-level efficiency.
At present; The GPS end device must see through network and download auxiliary positioning data in advance; Therefore, for the convention GPS device that can see through the network download auxiliary positioning data, no matter be to see through cell phone network or Wi-Fi network; The user must pay extra-pay and online required time, could obtain auxiliary positioning data smoothly.But can't see through the GPS device that network is downloaded auxiliary positioning data for the overwhelming majority, often need wait for cold boot (cold start) required time.
Yet, seeing through the network download auxiliary positioning data and constituted existing use restriction, network signal is faint even can't obtain this network signal when facing, and all makes this locating device that stable and reliable positioning information can't be provided.And the cost of on time also can cause and use inconvenience.In other words,, and can't effectively shorten positioning time, promote efficient in above-mentioned variety of way.
Summary of the invention
Technical matters to be solved by this invention provides a kind of locating device and method, and stable and reliable positioning information can be provided, and can shorten the required time of its location.
In order to solve above technical matters, the invention provides following technical scheme:
The invention provides a kind of locating device, it can receive effective auxiliary positioning data from other locating device, and positions program according to this, perhaps receives the coordinate information of the positioning result of other locating device as itself.By this, locating device of the present invention can provide stable and reliable positioning information, and can shorten the required time of its location, solves the problem of known techniques.
According to a specific embodiment, this locating device comprises a wireless communication module, a storage element, a location module and a control module.This wireless communication module system is in order to produce a detection signal.This storage element is coupled to this wireless communication module, in order to store an auxiliary positioning data.This locating module is coupled to this storage element, in order to produce a coordinate information according to satellite signals and this auxiliary positioning data.Whether this control module is coupled to this wireless communication module, this storage element and this locating module, effective in order to judge this assist location data.If this auxiliary positioning data is invalid, then this this wireless communication module of control module control produces this detection signal.
Further, this detection signal system is in order to detect another locating device whether existing of this locating device comprises an effective auxiliary positioning data and a location result on every side.If there is this another locating device, then this wireless communication module and this another locating device are set up communication link, and receive this effective auxiliary positioning data and this positioning result, and this locating device can this own coordinate information of this positioning result conduct.
The present invention also provides a kind of localization method, and it can receive effective auxiliary positioning data from other locating device, and positions program according to this, perhaps receives the coordinate information of the positioning result of other locating device as itself.By this, localization method of the present invention can provide stable and reliable positioning information, and can shorten the required time of its location, solves the problem of known techniques.
According to a specific embodiment, this localization method can apply to a location device, and this locating device stores an auxiliary positioning data.And this localization method comprises the following step: at first, execution in step (a) judges whether this auxiliary positioning data is effective.Then, execution in step (b), when this auxiliary positioning data be judged as invalid, produce a detection signal with detect this locating device around whether exist and comprise another locating device that an effective auxiliary positioning data and is located the result.At last, execution in step (c) is then set up communication link with this another locating device, and receives this effective auxiliary positioning data and this positioning result, and with the coordinate information of this positioning result as this locating device.
Locating device and method that the present invention adopts can receive effective auxiliary positioning data from other locating device, and position program according to this, perhaps receive the coordinate information of the positioning result of other locating device as itself.By this, locating device of the present invention and method can provide stable and reliable positioning information, and can shorten the required time of its location.Further, the mode that locating device of the present invention can see through wireless telecommunications obtains the located in connection data from the positioned adjacent device in real time, to obtain coordinate information accurately, further reaches the purpose of real-time update coordinate information.
Description of drawings
Fig. 1 is the functional block diagram according to the locating device of a specific embodiment of the present invention.
Fig. 2 is the locating device of Fig. 1 and the synoptic diagram that other locating device is linked up.
Fig. 3 is the process flow diagram according to the localization method of a specific embodiment of the present invention.
Fig. 4 is the process flow diagram according to the localization method of a specific embodiment of the present invention.
[primary clustering symbol description]
1,3,4: locating device
10: wireless communication module 12: storage device
14: locating module 16: control module
S50～S58, S80～S90: process step
Embodiment
Please in the lump referring to Fig. 1 and Fig. 2, Fig. 1 is the functional block diagram according to the locating device 1 of a specific embodiment of the present invention, and Fig. 2 then illustrates the synoptic diagram that locating device 1 and other locating device 3,4 among Fig. 1 are linked up.As shown in the figure, locating device 1 comprises wireless communication module 10, storage element 12, locating module 14 and control module 16.In addition, locating device 3 stores effective auxiliary positioning data and positioning result, and locating device 4 does not then store any auxiliary positioning data or stores invalid auxiliary positioning data.Generally speaking, auxiliary positioning data has certain valid period, valid period one mistake, it is invalid that this auxiliary positioning data promptly becomes.
Whether control module 16 is coupled to wireless communication module 10, storage element 12 and locating module 14, effective in order to judge the auxiliary positioning data in the storage element 12.If control module 16 judges that auxiliary positioning data is effective, control module 16 control wireless communication modules 10 get into the label pattern.Under the label pattern, wireless communication module 10 is the detection signal that can receive from other locating device (being locating device 4), and sends the effective auxiliary positioning data in the storage element 12 to locating device 4 according to detection signal.
Otherwise if control module 16 judges that the auxiliary positioning data in the storage element 12 is invalid, then control module 16 control wireless communication modules 10 get into read mode, to produce detection signal.As previously mentioned, detection signal can be detected the existence of the locating device 3 that comprises effective auxiliary positioning data and positioning result.
Because it is ageing that auxiliary positioning data has, therefore, in practical application, (for example, the auxiliary positioning data in the storage element 12 can regularly be inspected to control module 16 by AGPS control center (AGPS control center, ACC) chip), and judges whether it is effective.And control module 16 can get into read mode or label pattern according to each judged result control wireless communication module 10.
When wireless communication module 10 saw through detection signal and detects locating device 3, wireless communication module 10 was set up communication link with locating device 3, and stored effective auxiliary positioning data and/or the positioning result of receiving positioner 3.Subsequently, the positioning result that locating device 1 can locating device 3 is as the coordinate information of itself.Please note; Because the wireless communication module 10 in this specific embodiment is the RF identification communication module; Its transmission range is short; This representes that also the distance between locating device 1 and the locating device 3 can be too not far away, so do not have too mistake with the positioning result of locating device 3 as locating device 1 coordinate information own.
Yet when the distance between locating device 1 and locating device 3 increased (for example, handheld positioning device 1 moves toward reverse direction with the user of locating device 3, particularly fast moving), the error of the resulting coordinate information of mode just possibly enlarge according to this.Therefore, the own again location of assist location information that locating device 1 of the present invention can be received according to self locating device 3 simultaneously is to improve the degree of accuracy of location.
Further; In this specific embodiment, locating device 1 has first identification code, and locating device 3 has second identification code; When detection signal that the wireless communication module 10 of locating device 3 receiving positioners 1 is sent, it responds second identification code to locating device 1.Locating device 1 transmits first identification code to locating device 3 after receiving second identification code.In other words, locating device 1 can produce aforesaid communication link according to first identification code and second identification code with locating device 3.
When the effective auxiliary positioning data in the locating device 3 is sent to locating device 1 through aforesaid communication link; Effectively auxiliary positioning data is divided into plurality of packets; And each package comprises a residue length information respectively, does not transmit the package length of accomplishing as yet in order to indication.In addition, locating device 1 sees through wireless communication module 10 and receives these packages, and these packages are stored in the storage element 12.Wireless communication module 10 can also have several packages to receive by the residue length information understanding of each package of inspection.
In an embodiment, when the transmission of auxiliary positioning data is not accomplished, and wireless communication module 10 does not receive in the schedule time; For example; During at least two packages (, aforesaid communication link possibly interrupted), control module 16 is removed the package that has received in the storage element 12; And control wireless communication module 10 resend detection signal, to set up communication link with locating device 3 or with other locating device that comprises effective auxiliary positioning data again.In another embodiment, after wireless communication module 10 received first package, when not receiving second package yet smoothly through the schedule time, wireless communication module 10 can send for several times identical request signal to locating device 3 continuously.If still can't receive second package, then locating device 1 is given up first package that has received, and resends detection signal by wireless communication module 10.Note that previous embodiment is merely illustrates the present invention, and unrestricted scope of the present invention.
In addition; In practical application; After the transmission of effective auxiliary positioning data was accomplished, whether control module 16 was according to the effective auxiliary positioning data of check code (checksum) inspection correct (for example, whether package length is correct, whether the auxiliary positioning data content is complete etc.).If this effective auxiliary positioning data of check result indication is incorrect; Then this control module 16 is removed the package that has received in this storage element 12; And control wireless communication module 10 resend detection signal, to set up communication link with locating device 3 or with other locating device that comprises effective auxiliary positioning data again.
Please note; In practice; When locating device 1 searched a plurality of other locating device that comprises effective auxiliary positioning data simultaneously, locating device 1 can decide the priority of setting up communication with these locating devices according to signal strength, distance or other parameter between itself and these locating devices.
In practical application, the various electronic equipments of locating device of the present invention 1 general reference with positioning function, for example GPS mobile phone or portable navigation equipment (portable navigation device, PND).Therefore, this locating device 1 can be one independently to be built on the electronic installation of various tool data-handling capacities in the gps receiver or, for example has mobile phone or running computing machine of GPS receiving function etc.Mobile phone or running computing machine can see through navigation software and carry out the data that have Storage Media, according to from the received positioning signal of gps receiver, carry out the localization method that the present invention proposes again.
See also Fig. 3, Fig. 3 is the process flow diagram according to the localization method of a specific embodiment of the present invention.This localization method can apply to one first locating device, obtains the coordinate information of itself to assist first locating device.In this specific embodiment, first locating device stores auxiliary positioning data, and this localization method comprises following steps:
At first, execution in step S50, first locating device judge whether stored auxiliary positioning data is effective.In practice, step S50 can start because of user's operation, or is started automatically by first locating device.
If step S50 judges that auxiliary positioning data is effective, execution in step S52, first locating device carries out location own with effective auxiliary positioning data, to obtain coordinate information.In addition, if step S50 judges that auxiliary positioning data is effective, localization method of the present invention also may command RF identification communication module gets into the label pattern.Under the label pattern, the RF identification communication module can receive the detection signal from other locating device, optionally responds effective auxiliary positioning data to other locating device.
Otherwise, if step S50 judges that auxiliary positioning data is invalid, execution in step S54, first locating device produces detection signal.Whether execution in step S56 exists second locating device that comprises effective auxiliary positioning data and positioning result around the detection signal detecting by this again.In practical application, method may command RF identification communication module of the present invention gets into read mode, causes the RF identification communication module to produce detection signal.In addition, in practical application, having not only, one second locating device receives this detection signal.
If second locating device exists; Execution in step S58; First locating device and second locating device are set up communication link; And receive effective auxiliary positioning data and/or positioning result, and with the coordinate information of positioning result, or obtain coordinate information itself according to effective auxiliary positioning data as first locating device.
Further, in practical application, first locating device can have first identification code, and second locating device can have second identification code.And the step that aforementioned first locating device and second locating device are set up communication link also comprises: second locating device receives detection signal, and responds second identification code to the first locating device.Certainly, in practice, this second locating device maybe be because its user's decision or other factors respond second identification code yet.Then, first locating device transmits first identification code to the second locating device after receiving second identification code, and first locating device and second locating device produce communication link according to first identification code and second identification code.Otherwise if second locating device does not exist, then first locating device can periodically produce detection signal and detect (repeating step S54), also can position with stored invalid auxiliary positioning data own earlier, and remind user's As-Is simultaneously.
Below will further specify the effective auxiliary positioning data transmission course between aforementioned first locating device and second locating device, and first locating device receives the subsequent step behind effective auxiliary positioning data.See also Fig. 4, Fig. 4 illustrates the process flow diagram according to the localization method of a specific embodiment of the present invention.As shown in the figure, localization method of the present invention also can comprise the following step:
At first; Execution in step S80, after first locating device and second locating device were set up communication link, second locating device was divided into plurality of packets with effective auxiliary positioning data; And each package comprises residue length information respectively, does not transmit the package length of accomplishing as yet in order to indication.For instance; If second locating device is divided into ten packages with effective auxiliary positioning data; Then first package comprises residue length value " 9 ", and second package comprises residue length value " 8 ", and the 3rd package comprises residue length value " 7 ";, the tenth package then comprises residue length value " 0 ".
Then, execution in step S82, first locating device judges according to residue length information whether effective auxiliary positioning data transmits completion.If the judged result of step S82 is for being, execution in step S84 then, the first locating device effective auxiliary positioning data that inspection is received according to check code whether correct (for example, correctly whether package length, whether the auxiliary positioning data content complete etc.).If, execution in step S86, first locating device positions according to the effective auxiliary positioning data that is received, to obtain the coordinate information of itself.If not, execution in step S88 then, first locating device is removed the package that has received, and resends detection signal.
Otherwise if the judged result of step S82 is not, then further execution in step S90, first locating device judge whether in the schedule time, to receive at least two packages.If not, then carry out abovementioned steps S88, first locating device is removed the package that has received, and resends detection signal.Otherwise, if being judged as of step S90 is that then first locating device can continue to wait for the transmission of residue package in a time limit.If in this time limit, do not receive the residue package yet, then first locating device is removed the package that has received, and resends detection signal.
In sum, locating device provided by the present invention and method can receive effective auxiliary positioning data from other locating device, and position program according to this, perhaps receive the coordinate information of the positioning result of other locating device as itself.By this, locating device of the present invention and method can provide stable and reliable positioning information, and can shorten the required time of its location.Further, the mode that locating device of the present invention can see through wireless telecommunications obtains the located in connection data from the positioned adjacent device in real time, to obtain coordinate information accurately, further reaches the purpose of real-time update coordinate information.
By the detailed description of above preferred embodiment, be that hope can be known description characteristic of the present invention and spirit more, and be not to come category of the present invention is limited with the above-mentioned preferred embodiment that is disclosed.On the contrary, its objective is that hope can contain in the category that is arranged in claim of the present invention of various changes and tool equality.
Claims (10)
1. a locating device is characterized in that, includes:
One wireless communication module, in order to produce a detection signal, said wireless communication module is is a RF identification communication module, has a read mode and a label pattern;
One storage element is coupled to this wireless communication module, in order to store an auxiliary positioning data;
One location module is coupled to this storage element, in order to produce a coordinate information according to satellite signals and this auxiliary positioning data; And
Whether one control module is coupled to this wireless communication module, this storage element and this locating module, effective in order to judge this auxiliary positioning data; If this auxiliary positioning data is invalid; Then this this wireless communication module of control module control gets into read mode and produces this detection signal, if this auxiliary positioning data is effective, this this wireless communication module of control module control gets into this label pattern; Under this label pattern, this wireless communication module system can receive this detection signal from other locating devices.
2. locating device as claimed in claim 1; It is characterized in that; This detection signal system is in order to detect another locating device whether existing of this locating device comprises an effective auxiliary positioning data and a location result on every side, if there is this another locating device, then this wireless communication module and this another locating device are set up communication link; And receive this effective auxiliary positioning data and this positioning result, and this locating device system is with this positioning result this coordinate information as itself.
3. locating device as claimed in claim 2 is characterized in that, this effective auxiliary positioning data system is divided into plurality of packets, and each package comprises a residue length information respectively, in order to the indication package length accomplished of transmission as yet.
4. locating device as claimed in claim 3; It is characterized in that; When the transmission of this auxiliary positioning data is not accomplished; And this wireless communication module receives at least two packages in a schedule time, then this control module is removed the package that has received in this storage element, and controls this wireless communication module and resend this detection signal.
5. locating device as claimed in claim 2; It is characterized in that; After this effective auxiliary positioning data transmission was accomplished, whether this control module was correct according to this effective auxiliary positioning data of check code inspection, if this effective auxiliary positioning data of check result indication is incorrect; Then this control module is removed the package that has received in this storage element, and controls this wireless communication module and resend this detection signal.
6. locating device as claimed in claim 2; It is characterized in that; This locating device cording has one first identification code, and this another locating device cording has one second identification code, when this another locating device receives this detection signal; Respond this second identification code to this locating device; This locating device transmits this first identification code to this another locating device after receiving this second identification code, this locating device and this another locating device system produce communication link according to this first identification code and this second identification code.
7. localization method; Apply to store a location device of an auxiliary positioning data, it is characterized in that this locating device comprises a RF identification communication module; This RF identification communication module has a read mode and a label pattern, and this localization method comprises the following step:
(a) judge whether this assist location data is effective;
(b) when this auxiliary positioning data be judged as invalid; Control this RF identification communication module and get into this read mode, produce a detection signal to detect another locating device whether existing of this locating device comprises an effective auxiliary positioning data and a location result on every side; When this auxiliary positioning data is judged as effectively, control this RF identification communication module and get into this label pattern, under this label pattern, this RF identification communication module system can receive this detection signal from other locating device, and
(c) set up communication link with this another locating device, and receive this effective auxiliary positioning data and this positioning result, and with the coordinate information of this positioning result as this locating device.
8. localization method as claimed in claim 7 is characterized in that, this locating device cording has one first identification code, and this another locating device cording has one second identification code, and wherein step (c) further comprises:
(c1) when this another locating device receives this detection signal, respond this second identification code to this locating device; And
(c2) this locating device transmits this first identification code to this another locating device after receiving this second identification code, and another locating device system of this locating device and this produces communication link according to this first identification code and this second identification code.
9. localization method as claimed in claim 7 is characterized in that, this effective auxiliary positioning data system is divided into plurality of packets, and each package comprises a residue length information respectively, in order to the indication package length accomplished of transmission as yet.
10. localization method as claimed in claim 7 is characterized in that, further comprises:
(d) after this effective auxiliary positioning data transmission is accomplished, whether correct according to this effective auxiliary positioning data of check code inspection; And
(e) if this effective auxiliary positioning data of check result indication is incorrect, then removes the package that has received, and resend this detection signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910008674A CN101799528B (en) | 2009-02-11 | 2009-02-11 | Positioning device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910008674A CN101799528B (en) | 2009-02-11 | 2009-02-11 | Positioning device and method |
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| CN101799528A CN101799528A (en) | 2010-08-11 |
| CN101799528B true CN101799528B (en) | 2012-10-10 |
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| CN200910008674A Expired - Fee Related CN101799528B (en) | 2009-02-11 | 2009-02-11 | Positioning device and method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106468773A (en) * | 2015-08-18 | 2017-03-01 | 瑞昱半导体股份有限公司 | Satellite positioning device and electronic installation |
| FR3083306B1 (en) * | 2018-06-29 | 2020-07-24 | Safran Electronics & Defense | NAVIGATION ASSISTANCE PROCESS |
| CN109917425A (en) * | 2019-01-11 | 2019-06-21 | 丰疆智慧农业股份有限公司 | The system and method for detecting distance between intelligent agricultural machinery and remote terminal |
| CN113625322B (en) * | 2021-08-12 | 2024-03-15 | 西安广和通无线软件有限公司 | Satellite positioning method, satellite positioning device, computer equipment and storage medium |
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| KR20070002673A (en) * | 2005-06-30 | 2007-01-05 | 삼성전기주식회사 | Test method of agps |
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| US6104978A (en) * | 1998-04-06 | 2000-08-15 | General Electric Company | GPS-based centralized tracking system with reduced energy consumption |
| KR20070002673A (en) * | 2005-06-30 | 2007-01-05 | 삼성전기주식회사 | Test method of agps |
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