CN106932800A - A kind of localization method and device for car-mounted terminal - Google Patents
A kind of localization method and device for car-mounted terminal Download PDFInfo
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- CN106932800A CN106932800A CN201710299981.8A CN201710299981A CN106932800A CN 106932800 A CN106932800 A CN 106932800A CN 201710299981 A CN201710299981 A CN 201710299981A CN 106932800 A CN106932800 A CN 106932800A
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- epo
- files
- car
- mounted terminal
- locating module
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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
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Navigation (AREA)
Abstract
The invention discloses a kind of method and apparatus for on-vehicle positioning terminal.The method includes that the single-chip microcomputer of car-mounted terminal obtains EPO files and stores from EPO servers；If it is determined that the EPO files are effectively, then the effective EPO files to the locating module of the car-mounted terminal are sent；Using the locating module according to the location data of the EPO file acquisitions vehicle.So as to obtain EPO files by from EPO servers, and location data is obtained using effective EPO files using locating module, realization is fast and effeciently positioned.
Description
Technical field
The present embodiments relate to vehicle positioning technology, more particularly to a kind of localization method and dress for car-mounted terminal
Put.
Background technology
Location technology has broad application prospects, and every field has been applied at present, such as：Automobile, aircraft, steamer, build
Build, mobile guidance, agricultural etc., and the application on vehicle is closely bound up with the life of the people, especially vehicle location monitor with
Command scheduling application.
Prior art is generally positioned in real time using on-vehicle positioning terminal to vehicle, but on-vehicle positioning terminal is without net
Network or in the case of restarting, also has that positioning time is long.
The content of the invention
The present invention provides a kind of localization method and device of car-mounted terminal, to realize fast and effeciently positioning.
In a first aspect, the embodiment of the invention provides a kind of localization method for car-mounted terminal, methods described includes：
The single-chip microcomputer of the car-mounted terminal obtains EPO files and stores from EPO servers；
If it is determined that the EPO files are effectively, then the effective EPO files to the positioning mould of the car-mounted terminal are sent
Block；
Using the locating module according to the location data of the EPO file acquisitions vehicle.
Preferably, however, it is determined that the EPO files effectively, then send the effective EPO files to the car-mounted terminal
Before locating module, also include：Monitor that the locating module of car-mounted terminal is positioned unsuccessful or monitors that car-mounted terminal is opened again
It is dynamic.
Preferably, the EPO files include almanac data.
Preferably, however, it is determined that the EPO files effectively, then send the effective EPO files to the car-mounted terminal
Before locating module, also include：Obtain the current time of car-mounted terminal.
Preferably, it is described to determine that the EPO files effectively, are specifically included：
If the current time and the download time difference for obtaining the EPO files from EPO servers are less than or equal to pre-
If time threshold, it is determined that the EPO files are effective.
Preferably, the current time for obtaining car-mounted terminal, specifically includes：
If monitoring, car-mounted terminal is restarting, and the time of the EPO servers is obtained as car from EPO servers
The current time of mounted terminal, if from the EPO servers cannot be obtained the time, obtains the RTC time of car-mounted terminal as car
The current time of mounted terminal, if the RTC time of car-mounted terminal cannot be obtained, time conduct is obtained from the single-chip microcomputer of car-mounted terminal
The current time of car-mounted terminal；
If monitoring, car-mounted terminal not restarts, and obtains the RTC time of the car-mounted terminal as described vehicle-mounted
The current time of terminal.
Preferably, it is described to obtain EPO files from EPO servers, specifically include：
It was divided into default several time periods by one day；
Select to send the instruction for obtaining EPO files from EPO servers in the half an hour in one of them time period；
If the number of times that the EPO files are downloaded in the half an hour is less than or equal to preset times, the EPO is downloaded
File；If the number of times that the EPO files are downloaded in the half an hour is more than preset times, the EPO files are downloaded in pause,
Wait next time period.
Preferably, it is described to send the effective EPO files to the locating module of the car-mounted terminal, specifically include：
The effective EPO files are divided into several file bags；
Described several file bags are sent in sequence to locating module；
Receive the locating module and receive the response returned after each described file bag；
If the quantity of the response for returning is identical with the quantity of file bag, it is determined that the effective EPO files send
Complete.
Preferably, methods described also includes：
Base station information is obtained from ground base station；
The base station information is uploaded to the EPO servers；
Receive the latitude and longitude information by parsing the base station information acquisition that the EPO servers are returned；
The latitude and longitude information is sent to the locating module；
Using the locating module according to the latitude and longitude information and the location data of the EPO file acquisitions vehicle.
Second aspect, the embodiment of the present invention additionally provides a kind of positioner for car-mounted terminal, and described device includes：
Obtain and memory module, for obtaining EPO files from EPO servers and storing；
It is determined that and sending module, for if it is determined that the EPO files effectively, then send the effective EPO files to institute
State the locating module of car-mounted terminal；
Positioning performing module, for using the locating module according to the location data of the EPO file acquisitions vehicle.
The present invention obtains EPO files and stores by the single-chip microcomputer of car-mounted terminal from EPO servers；If it is determined that the EPO
File effectively, then sends the effective EPO files to the locating module of the car-mounted terminal；Using the positioning mould root tuber
According to the location data of the EPO file acquisitions vehicle.So as to obtain EPO files by from EPO servers, and use locating module
Location data is obtained using effective EPO files, realization is fast and effeciently positioned.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the localization method for car-mounted terminal in the embodiment of the present invention one；
Fig. 2 is a kind of flow chart of the localization method for car-mounted terminal in the embodiment of the present invention two；
Fig. 3 is a kind of flow chart of the localization method for car-mounted terminal in the embodiment of the present invention three；
Fig. 4 is a kind of structural representation of the positioner for car-mounted terminal in the embodiment of the present invention four；
Fig. 5 is a kind of structural representation of the positioner for car-mounted terminal in the embodiment of the present invention five.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part rather than entire infrastructure related to the present invention is illustrate only in description, accompanying drawing.
Embodiment one
Fig. 1 is a kind of flow chart of localization method for car-mounted terminal that the embodiment of the present invention one is provided, the present embodiment
Be applicable to cannot normally to position when positioning terminal itself, cold start-up or other need the situation of quick positioning, the method can be with
Performed by the positioner for car-mounted terminal, the device can be realized by hardware and/or software, for example, can be integrated
In the control unit or control program of car-mounted terminal.As shown in figure 1, the method includes：
Step 101, the single-chip microcomputer of car-mounted terminal obtain EPO files and store from EPO servers；
Wherein, car-mounted terminal connection EPO servers, when car-mounted terminal is not powered off, single-chip microcomputer is by the logical of car-mounted terminal
Letter module obtains EPO files and stores from EPO servers.The EPO files include almanac data.
Specifically, EPO files, including step 1011- steps 1013 are obtained from EPO servers：
Step 1011, it was divided into default several time periods by one day；
For example, one day is divided into four time periods of EPO files can be obtained, respectively：0:00-6:30、6:00-12:30、
12:00-18:30 and 18:00-00:30.So set because the period of validity of EPO files is 6 and a half hours.
Step 1012, the finger that EPO files are obtained from EPO servers is sent in the half an hour for selecting in one of them time period
Order；
For example, car-mounted terminal is in the half an hour in the wherein individual time period, in such as 10-25 points, random time, peace are produced
Row downloads EPO files.So set main purpose be stagger different mobile units same time point go download EPO files cause
EPO server blocks.
If step 1013, the number of times that the EPO files are downloaded in the half an hour are less than or equal to preset times, under
Carry the EPO files；If the number of times that the EPO files are downloaded in the half an hour is more than preset times, institute is downloaded in pause
EPO files are stated, next time period is waited.
For example, same EPO files are within selected half an hour, after the number of times being downloaded is more than 3 times, no matter under every time
Carry whether to succeed and all no longer download, wait next download time section.
Step 102, if it is determined that the EPO files effectively, then send the effective EPO files to the car-mounted terminal
Locating module.
Wherein, the EPO files term of validity be 6 and a half hours, only when it is determined that the EPO files effectively, just by effective institute
State the locating module that EPO files are sent to the car-mounted terminal.
Step 103, using the locating module according to the location data of the EPO file acquisitions vehicle.
Wherein, locating module quickly realizes positioning according to the almanac data that the EPO files include.
Specifically, step 103 includes：
The effective EPO files are divided into several file bags；
Described several file bags are sent in sequence to locating module；
Receive the locating module and receive the response returned after each described file bag；
If the quantity of the response for returning is identical with the quantity of file bag, it is determined that the effective EPO files send
Complete.
Because internal memory shared by EPO files is big, EPO files more quickly can be sent to locating module by this set,
So as to further improve locating speed.
The technical scheme of the present embodiment obtains EPO files and stores by the single-chip microcomputer of car-mounted terminal from EPO servers；If
Determine the EPO files effectively, then send the effective EPO files to the locating module of the car-mounted terminal；Using described
Location data of the locating module according to the EPO file acquisitions vehicle.So as to obtain EPO files by from EPO servers, and adopt
Location data is obtained using effective EPO files with locating module, realization is fast and effeciently positioned, positioning time is 10 seconds left sides
It is right.
On the basis of above-mentioned technical proposal, the localization method also includes：
Base station information is obtained from ground base station；
The base station information is uploaded to the EPO servers；
Receive the latitude and longitude information by parsing the base station information acquisition that the EPO servers are returned；
The latitude and longitude information is sent to the locating module；
Using the locating module according to the latitude and longitude information and the location data of EPO file acquisition vehicles.
Using this set, sent to EPO servers by the base station information obtained from base station and parsed, to positioning mould
One reference position of block, realizes that locating module is positioned based on satellite almanac data and ground base station assisted acquisition, can further carry
The speed of high positioning, is capable of achieving positioning in 3,4 seconds.
Embodiment two
Fig. 2 is refer to, Fig. 2 is a kind of flow of localization method for car-mounted terminal that the embodiment of the present invention two is provided
Figure.The present embodiment is optimized improvement based on above-described embodiment scheme, in particular, provides monitoring car-mounted terminal work
State as start the localization method condition concrete scheme.As shown in Fig. 2 the method includes：
Step 201, the single-chip microcomputer of the car-mounted terminal obtain EPO files and store from EPO servers；
Step 202, monitor car-mounted terminal locating module positioning it is unsuccessful or monitor car-mounted terminal restart；
Wherein, when the locating module self poisoning of car-mounted terminal is unsuccessful, it is impossible to normally vehicle is positioned；And work as
When car-mounted terminal restarts, realize positioning, it is necessary to longer time using the locating module itself of car-mounted terminal.If monitoring
The locating module positioning of car-mounted terminal is unsuccessful or monitors that car-mounted terminal restarts, and takes localization method of the invention then may be used
To shorten positioning time.
Step 203, if it is determined that the EPO files effectively, then send the effective EPO files to the car-mounted terminal
Locating module；
Step 204, using the locating module according to the location data of the EPO file acquisitions vehicle.
The technical scheme of the present embodiment is when the locating module positioning for monitoring car-mounted terminal is unsuccessful or monitors vehicle-mounted end
End restarting, obtains EPO files, and positioned using effective EPO files using locating module by from EPO servers
Data, realization is fast and effeciently positioned, and positioning time is 10 seconds or so.
Embodiment three
Fig. 3 is refer to, Fig. 3 is a kind of flow of localization method for car-mounted terminal that the embodiment of the present invention three is provided
Figure.The present embodiment is optimized improvement based on above-described embodiment scheme, in particular, provides and how to determine EPO files
Effective concrete scheme.As shown in figure 3, the method includes：
Step 301, the single-chip microcomputer of the car-mounted terminal obtain EPO files and store from EPO servers；
Step 302, the current time for obtaining car-mounted terminal；
Specifically, step 302 includes：
If monitoring, car-mounted terminal is restarting, and the time of the EPO servers is obtained as car from EPO servers
The current time of mounted terminal, if from the EPO servers cannot be obtained the time, obtains the RTC time of car-mounted terminal as car
The current time of mounted terminal, if the RTC time of car-mounted terminal cannot be obtained, time conduct is obtained from the single-chip microcomputer of car-mounted terminal
The current time of car-mounted terminal；
If monitoring, car-mounted terminal not restarts, and obtains the RTC time of the car-mounted terminal as described vehicle-mounted
The current time of terminal.
This set, can make the current time of the car-mounted terminal of acquisition more accurate, so as to improve the standard of localization method
True property.
If step 303, the current time and the download time for obtaining the EPO files from the EPO servers differ
Less than or equal to preset time threshold, it is determined that the EPO files are effective；
The locating module of step 304, the effective EPO files of transmission to the car-mounted terminal；
Step 305, using the locating module according to the location data of the EPO file acquisitions vehicle.
The technical scheme of the present embodiment obtains EPO files by from EPO servers, and using locating module using effective
EPO files obtain location data, and realization is fast and effeciently positioned, and positioning time is 10 seconds or so.
The following is a kind of embodiment of the positioner for car-mounted terminal provided in the specific embodiment of the invention, dress
The embodiment that the embodiment put is based on above-mentioned method realizes that not most description in a device refer to the implementation of preceding method
Example.
Example IV
Fig. 4 is refer to, Fig. 4 is a kind of structure of positioner for car-mounted terminal that fourth embodiment of the invention is provided
Schematic diagram.As shown in figure 4, the device includes：
Obtain and memory module 101, for obtaining EPO files from EPO servers and storing；
It is determined that with sending module 102, for if it is determined that the EPO files effectively, then send the effective EPO files to
The locating module of the car-mounted terminal；
Positioning performing module 103, for using the locating module according to the positioning number of the EPO file acquisitions vehicle
According to.
Further, the device also includes current time acquisition module, the current time for obtaining car-mounted terminal.
Specifically, the determination and sending module 102 are used for：If the current time and from the EPO servers obtain
The download time difference of the EPO files is less than or equal to preset time threshold, it is determined that effectively, transmission has the EPO files
Locating module of the EPO files of effect to the car-mounted terminal.
The technical scheme of the present embodiment obtains EPO files by from EPO servers, and using locating module using effective
EPO files obtain location data, and realization is fast and effeciently positioned, and positioning time is 10 seconds or so.
Embodiment five
Fig. 5 is refer to, Fig. 5 is that a kind of structure of positioner for car-mounted terminal that the embodiment of the present invention five is provided is shown
It is intended to.The present embodiment is optimized improvement based on above-described embodiment scheme, in particular, provides monitoring car-mounted terminal work
Make concrete scheme of the state as the condition for starting the localization method.As shown in figure 5, the device includes：
Obtain and memory module 201, for obtaining EPO files from EPO servers and storing；
Monitoring modular 202, the locating module positioning for monitoring car-mounted terminal is unsuccessful or monitors car-mounted terminal weight
It is new to start；
It is determined that with sending module 203, for if it is determined that the EPO files effectively, then send the effective EPO files to
The locating module of the car-mounted terminal；
Positioning performing module 204, for using the locating module according to the positioning number of the EPO file acquisitions vehicle
According to.
The technical scheme of the present embodiment is when the locating module positioning for monitoring car-mounted terminal is unsuccessful or monitors vehicle-mounted end
End restarting, obtains EPO files, and positioned using effective EPO files using locating module by from EPO servers
Data, realization is fast and effeciently positioned, and positioning time is 10 seconds or so.
The said goods can perform the method that any embodiment of the present invention is provided, and possess the corresponding functional module of execution method
And beneficial effect.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
More other Equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of localization method for car-mounted terminal, it is characterised in that methods described includes：
The single-chip microcomputer of the car-mounted terminal obtains EPO files and stores from EPO servers；
If it is determined that the EPO files are effectively, then the effective EPO files to the locating module of the car-mounted terminal are sent；
Using the locating module according to the location data of the EPO file acquisitions vehicle.
2. method according to claim 1, it is characterised in that if it is determined that the EPO files effectively, then send effective institute
EPO files are stated to before the locating module of the car-mounted terminal, is also included：Monitor car-mounted terminal locating module positioning not into
Work(monitors that car-mounted terminal restarts.
3. method according to claim 1, it is characterised in that the EPO files include almanac data.
4. method according to claim 1, it is characterised in that if it is determined that the EPO files effectively, then send effective institute
EPO files are stated to before the locating module of the car-mounted terminal, is also included：Obtain the current time of car-mounted terminal.
5. method according to claim 4, it is characterised in that the determination EPO files effectively, are specifically included：
If the current time and the download time difference for obtaining the EPO files from EPO servers are less than or equal to default
Between threshold value, it is determined that the EPO files are effective.
6. method according to claim 4, it is characterised in that the current time of the acquisition car-mounted terminal, specifically includes：
If monitoring, car-mounted terminal is restarting, and the time of the EPO servers is obtained as vehicle-mounted end from EPO servers
The current time at end, if from the EPO servers cannot be obtained the time, obtains the RTC time of car-mounted terminal as vehicle-mounted end
The current time at end, if the RTC time of car-mounted terminal cannot be obtained, the time is obtained as vehicle-mounted from the single-chip microcomputer of car-mounted terminal
The current time of terminal；
If monitoring, car-mounted terminal not restarts, and obtains the RTC time of the car-mounted terminal as the car-mounted terminal
Current time.
7. method according to claim 1, it is characterised in that described to obtain EPO files from EPO servers, specifically includes：
It was divided into default several time periods by one day；
Select to send the instruction for obtaining EPO files from EPO servers in the half an hour in one of them time period；
If the number of times that the EPO files are downloaded in the half an hour is less than or equal to preset times, the EPO texts are downloaded
Part；If the number of times that the EPO files are downloaded in the half an hour is more than preset times, the EPO files are downloaded in pause, etc.
Treat next time period.
8. method according to claim 1, it is characterised in that the effective EPO files of the transmission are to described vehicle-mounted
The locating module of terminal, specifically includes：
The effective EPO files are divided into several file bags；
Described several file bags are sent in sequence to locating module；
Receive the locating module and receive the response returned after each described file bag；
If the quantity of the response for returning is identical with the quantity of file bag, it is determined that the effective EPO files are sent completely.
9. method according to claim 1, it is characterised in that methods described also includes：
Base station information is obtained from ground base station；
The base station information is uploaded to the EPO servers；
Receive the latitude and longitude information by parsing the base station information acquisition that the EPO servers are returned；
The latitude and longitude information is sent to the locating module；
Using the locating module according to the latitude and longitude information and the location data of the EPO file acquisitions vehicle.
10. a kind of positioner for car-mounted terminal, it is characterised in that described device includes：
Obtain and memory module, for obtaining EPO files from EPO servers and storing；
It is determined that and sending module, for if it is determined that the EPO files effectively, then send the effective EPO files to the car
The locating module of mounted terminal；
Positioning performing module, for using the locating module according to the location data of the EPO file acquisitions vehicle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299981.8A CN106932800A (en) | 2017-04-28 | 2017-04-28 | A kind of localization method and device for car-mounted terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299981.8A CN106932800A (en) | 2017-04-28 | 2017-04-28 | A kind of localization method and device for car-mounted terminal |
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| CN106932800A true CN106932800A (en) | 2017-07-07 |
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| CN201710299981.8A Pending CN106932800A (en) | 2017-04-28 | 2017-04-28 | A kind of localization method and device for car-mounted terminal |
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