CN103968847B - Electronic map off-line data method for organizing and device - Google Patents
Electronic map off-line data method for organizing and device Download PDFInfo
- Publication number
- CN103968847B CN103968847B CN201410203473.1A CN201410203473A CN103968847B CN 103968847 B CN103968847 B CN 103968847B CN 201410203473 A CN201410203473 A CN 201410203473A CN 103968847 B CN103968847 B CN 103968847B
- Authority
- CN
- China
- Prior art keywords
- electronic map
- data
- key point
- trip route
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3407—Route searching; Route guidance specially adapted for specific applications
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Navigation (AREA)
Abstract
The invention discloses a kind of electronic map off-line data method for organizing and device.The electronic map off-line data method for organizing includes：Receive the trip route data that client is submitted to；According to the trip route data that client is submitted to, electronic map data waiting for transmission is generated；The electronic map data of generation is transmitted to client.Electronic map off-line data method for organizing provided in an embodiment of the present invention and device cause that user only needs to download the electronic map data on trip route and trip route periphery in trip, reduce the data volume for needing the electronic map data to client transmissions.
Description
Technical field
The present invention relates to technical field of intelligent traffic, more particularly to a kind of electronic map off-line data method for organizing and dress
Put.
Background technology
With the popularization of wireless communication technique and GIS-Geographic Information System, increasing user begins to use electronic map to answer
For travel route planning, for the trip of oneself provides navigation.
In existing electronic map application, electronic map data is stored and managed according to administrative division.Such as, take
Business device end can independently store the electronic map of Beijing and the electronic map of Tianjin.User is living only in the range of Beijing
When dynamic, he only needs to download the electronic map of Beijing；Equally, user only Tianjin activity when, he only need download Tianjin
The electronic map in city.And when user needs to reach Tianjin from Beijing, he is accomplished by downloading Beijing and day simultaneously
The electronic map of Jinshi City two.
Above-mentioned technology has a drawback in that：When user passes through between different cities, user needs to download each city
The electronic map in city, but most of data actually in map to be that user is unlikely use.So, user has been resulted in
Bandwidth and memory space waste.
The content of the invention
In view of this, the present invention proposes a kind of electronic map off-line data method for organizing and device, is needed to visitor with reducing
The data volume of the electronic map data of family end transmission.
In a first aspect, the embodiment of the invention provides a kind of electronic map off-line data method for organizing, methods described includes：
Receive the trip route data that client is submitted to；
According to the trip route data that client is submitted to, electronic map data waiting for transmission is generated；
The electronic map data of generation is transmitted to client.
Second aspect, the embodiment of the invention provides a kind of electronic map off-line data tissue device, and described device includes：
Trip route receiver module, the trip route data for receiving client submission；
Digital map module, for the trip route data submitted to according to client, generation is waiting for transmission electronically
Diagram data；
Electronic map transport module, for the electronic map data of generation to be transmitted to client.
Electronic map off-line data method for organizing provided in an embodiment of the present invention and device, by what is submitted to according to client
Traffic path data genaration electronic map data waiting for transmission, then the electronic map data waiting for transmission is transmitted to client
End so that user only needs to download the electronic map data on trip route and trip route periphery in trip, reduces needs
To the data volume of the electronic map data of client transmissions.
Brief description of the drawings
By the detailed description made to non-limiting example made with reference to the following drawings of reading, it is of the invention other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the flow chart of the electronic map off-line data method for organizing that first embodiment of the invention is provided；
Fig. 2 is the stream of digital map in the electronic map off-line data method for organizing that second embodiment of the invention is provided
Cheng Tu；
Fig. 3 is the schematic diagram of the route characteristic key point that second embodiment of the invention is provided；
Fig. 4 is the schematic diagram of the surrounding features key point that second embodiment of the invention is provided；
Fig. 5 is the stream of digital map in the electronic map off-line data method for organizing that third embodiment of the invention is provided
Cheng Tu；
Fig. 6 is the flow chart of the electronic map off-line data method for organizing that fourth embodiment of the invention is provided；
Fig. 7 is the structure chart of the electronic map off-line data tissue device that fifth embodiment of the invention is provided.
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 only used for explaining the present invention, rather than limitation of the invention.It also should be noted that, for the ease of
Description, illustrate only part rather than full content related to the present invention in accompanying drawing.
Fig. 1 shows the first embodiment of the present invention.
Fig. 1 is the flow chart of the electronic map off-line data method for organizing that first embodiment of the invention is provided.The present embodiment
The electronic map off-line data method for organizing of offer is applied on the server of network side, for dynamic according to the trip route of user
The generation of state and is transmitted to client the electronic map data of generation to the electronic map data of client transmissions.Referring to figure
1, the electronic map off-line data method for organizing includes：
S110, receives the trip route data that client is submitted to.
The client can be the hand-hold electronic equipments, or PC of user.And, client can lead to
Cross the trip route data that browser submits user's setting to, it is also possible to which going out for user's setting is submitted to by the client-side program developed
Row path data.
The trip route data are the routes of the preassigned once trip institute approach of user.Specifically, the trip
Path data shows as a line on the electronic map by starting point to the end.
In the present embodiment, the trip route is typically the trip route formed through different administrative divisions.Example
Such as, the trip route is the trip route that Tianjin is reached from Beijing.Also, the trip route can be user
Plan in advance on the client, be committed to server.Or, starting point, the purpose submitted to according to client by server
The path that the data schemas such as point are obtained.
S120, according to the trip route data that client is submitted to, generates electronic map data waiting for transmission.
After receiving the trip route data of client submission, with the trip route data as foundation, generate to be transmitted
Electronic map data.Also, the electronic map data waiting for transmission for being generated can be complete the trip route is shown
Out.
Preferably, the trip route data that can be submitted to according to client, determine on the trip route, and go out walking along the street
The key point on footpath periphery, then according to the determination key point generation key point coverage, finally according to covering for key point
Lid scope generates electronic map data waiting for transmission.
S130, the electronic map data of generation is transmitted to client.
After completing to the generation of the electronic map data, server transmits to client the electronic map data of generation
End.
If the client is connected to the server by wired mode, server will be raw in wired mode
Into electronic map data transmit to client；If the client is wirelessly connected to the server,
Server is wirelessly transmitted to client the electronic map data of generation.
The present embodiment is to be passed according to the trip route data genaration by receiving the trip route data that client is submitted to
Defeated electronic map data, and the electronic map data is transmitted to client so that under user no longer needs in trip
The whole electronic map of the administrative division that trip route is related to is carried, and trip route and trip route periphery model can be only downloaded
Interior electronic map is enclosed, the data volume for needing the electronic map data to client transmissions is reduced.
Fig. 2 to Fig. 4 shows the second embodiment of the present invention.
Fig. 2 is the stream of digital map in the electronic map off-line data method for organizing that second embodiment of the invention is provided
Cheng Tu.In the present embodiment, the electronic map data of server end is stored fully according to different administrative divisions.Namely
Say, server end is directed to another administrative division storage for an electronic map that is stored with of administrative division independence
There is another electronic map.And the electronic map for different administrative division storages is not overlapped.
The electronic map off-line data method for organizing based on first embodiment of the invention, further, according to visitor
The trip route data that family end is submitted to, generating electronic map data waiting for transmission includes：
Trip route data are parsed by S121, extract at least one key in setting range along trip route
Point.
The key point includes route characteristic key point and surrounding features key point.
Fig. 3 is the schematic diagram of the route characteristic key point that second embodiment of the invention is provided.Referring to Fig. 3, Fig. 3 shows use
What family was planned on the client is gone to the path 301 of Tianjin by Baoding city, and shows the route characteristic on the path
Key point 302.
The route characteristic key point is the spaced points of the first setpoint distance of flex point or interval on the trip route.
When the flex point can be that user advances along trip route, the point that direct of travel changes at this point, or road change
Point etc..Route characteristic key point can also be some spaced points being spacedly distributed on trip route, so that subregion is extracted
Electronic map data.
Preferably, the flex point can be obtained by carrying out curvature analysis to the trip route.The trip route is
One curve, each point on this curve has the corresponding radius of curvature of its own.The radius of curvature can characterize described
Degree of crook of the trip route in the point.The radius of curvature of the point is bigger, and the trip route is got in the degree of crook of the point
It is small；Opposite, the radius of curvature of the point is smaller, and the trip route is bigger in the degree of crook of the point.Can to it is described go out
Walking along the street footpath sets a radius of curvature threshold value, and point using all radius of curvature less than the radius of curvature threshold value is used as the trip
The route characteristic key point in path.
If in trip route the preceding paragraph path radius of curvature a little be respectively less than the radius of curvature threshold value,
Then using this section of point of path incurvature radius minimum as route characteristic key point.
Because flex point is the less point of radius of curvature on the trip route, that is, the larger point of degree of crook, so
Once it is determined that flex point for trip route, it becomes possible to substantially determine the profile of the trip route.
Certainly, in addition to the flex point of the trip route, other points on the trip route are also possible to be chosen
As route characteristic key point.Such as, when the spacing between two flex points on trip route is larger, only with the two flex points
When coverage generation body of a map or chart is not enough to cover the trip route, can be by least one between the two flex points point
It is route characteristic key point to select.
Except route characteristic key point, the key point also includes surrounding features key point.The surrounding features key point
It is at a distance of the second setpoint distance and with the information point of setting feature with the trip route.
Fig. 4 is the schematic diagram of the surrounding features key point that second embodiment of the invention is provided.Fig. 4 shows user in client
That is planned on end is gone to the path 401 of Tianjin by Baoding city, and shows the surrounding features key point 402 in the path.
The surrounding features key point 402 is the key point around the trip route, also, the surrounding features key point bag
Include the point around the trip route with setting feature.
The setting feature is primarily referred to as the semantic feature of the title of the point.Being included on electronic map much has title
Place, such as " Aug. 1st school ".Title to these places is analyzed, and the ground of certain semantic feature will be included in title
Click and be selected as surrounding features key point.Preferably, can in title comprising " service area ", " hotel " point as surrounding features
Key point.
S122, calculates the coverage of key point.
Each key point on map has its corresponding coverage.Preferably, can by with the key point as the center of circle,
Coverage of the scope of the circle covering using predeterminable range as radius as the key point.
S123, the coverage of the key point is merged, and generates body of a map or chart waiting for transmission.
After generating the coverage of each key point, the coverage of all key points is merged.To the key point
The process that coverage merges may be considered the process for seeking the coverage of all key points union.That is, in office
Point in what coverage for key point is all the point of body of a map or chart waiting for transmission.
S124, using the electronic map data in body of a map or chart waiting for transmission as electronic map data waiting for transmission.
Body of a map or chart waiting for transmission is generated, the electronic map data in the body of a map or chart waiting for transmission is exactly waiting for transmission
Electronic map data.
The present embodiment incorporates generation electronic map data waiting for transmission by by key point coverage so that server
Electronic map data waiting for transmission can be determined according to the electronic map stored according to administrative division, it is achieved thereby that to need to
The data volume reduction of the electronic map data of client transmissions.
Fig. 5 shows the third embodiment of the present invention.
Fig. 5 is the stream of digital map in the electronic map off-line data method for organizing that third embodiment of the invention is provided
Cheng Tu.In the present embodiment, the electronic map data of server end is not only stored according to administrative division, also for same
Electronic map data in administrative division carries out piecemeal storage.That is, for the electronic map in same administrative division
Data divide different piecemeals, and are stored according to ready-portioned piecemeal.
The electronic map off-line data method for organizing based on first embodiment of the invention, further, according to visitor
The trip route data that family end is submitted to, generating electronic map data waiting for transmission includes：
Trip route data are parsed by S125, extract at least one key in setting range along trip route
Point.
S126, calculates the coverage of key point.
S127, the electronic map piecemeal that the coverage of key point is related to is used as electronic map piecemeal waiting for transmission.
After calculating the coverage of key point, the coverage of the key point is corresponded into different electronic map piecemeals
On.If include the data in key point coverage in an electronic map piecemeal, that is, key point coverage
It is related to the electronic map piecemeal, then using the electronic map piecemeal as electronic map piecemeal waiting for transmission；If one electronically
The electronic map it is not related to not comprising the data having in key point coverage, that is, the coverage of key point in figure piecemeal
Piecemeal, then not using the electronic map piecemeal as electronic map piecemeal waiting for transmission.
S128, using the set of electronic map piecemeal waiting for transmission as electronic map data waiting for transmission.
After determining electronic map piecemeal waiting for transmission, by the set of all electronic map piecemeals waiting for transmission electronically
Diagram data is used as electronic map data waiting for transmission.
The present embodiment is by the electronic map piecemeal that is related to key point coverage as electronic map number waiting for transmission
According to so that server can determine electronic map data waiting for transmission according to the electronic map stored by block, it is achieved thereby that right
Need the data volume reduction of the electronic map data to client transmissions.
Fig. 6 shows the fourth embodiment of the present invention.
Fig. 6 is the flow chart of the electronic map off-line data method for organizing that fourth embodiment of the invention is provided.The electronics
Map off-line data method for organizing based on first embodiment of the invention, further, in the trip submitted to according to client
Path data, generates after electronic map data waiting for transmission, also includes：The electronic map data waiting for transmission is pressed
Contracting.
Referring to Fig. 6, the electronic map off-line data method for organizing includes：
S610, receives the trip route data that client is submitted to.
S620, according to the trip route data that client is submitted to, generates electronic map data waiting for transmission.
S630, the electronic map data waiting for transmission is compressed.
Generate after electronic map data waiting for transmission, the electronic map data waiting for transmission is compressed.
S640, the electronic map data of generation is transmitted to client.
The present embodiment by after electronic map data waiting for transmission is generated, to the electronic map number waiting for transmission
According to being compressed, the data volume for needing the electronic map data to client transmissions is reduce further.
Fig. 7 shows the fifth embodiment of the present invention.
Fig. 7 is the structure chart of the electronic map off-line data tissue device that fifth embodiment of the invention is provided.The electronics
Map off-line data tissue device, it is characterised in that including：Trip route receiver module 710, digital map module 720
And electronic map transport module 740.
The trip route receiver module 710 is used to receive the trip route data of client submission.
The digital map module 720 is used for the trip route data submitted to according to client, generates waiting for transmission
Electronic map data.
The electronic map transport module 740 is used to transmit the electronic map data of generation to client.
Preferably, the digital map module 720 includes：First key point extraction unit 721, the first coverage
Computing unit 722, the digital map unit 724 of coverage combining unit 723 and first.
The first key point extraction unit 721 is used to parse trip route data, extracts along trip route
At least one key point in setting range.
The first coverage computing unit 722 is used to calculate the coverage of key point.
The coverage combining unit 723 is used to merge the coverage of the key point, and generation is waiting for transmissionly
Figure scope.
The first digital map unit 724 be used for using the electronic map data in body of a map or chart waiting for transmission as
Electronic map data waiting for transmission.
Preferably, the digital map module includes：Second key point extraction unit 725, the second coverage meter
Calculate unit 726, the digital map unit 728 of piecemeal determining unit 727 and second.
The second key point extraction unit 725 is used to parse trip route data, extracts along trip route
At least one key point in setting range.
The second coverage computing unit 726 is used to calculate the coverage of key point.
The piecemeal determining unit 727 is used for the electronic map piecemeal that is related to the coverage of key point as to be transmitted
Electronic map piecemeal.
The second digital map unit 728 is used for using the set of electronic map piecemeal waiting for transmission as to be transmitted
Electronic map data.
Preferably, the key point includes route characteristic key point and surrounding features key point.
Preferably, the route characteristic key point is the key point on the trip route, also, the path is special
Levying key point includes the flex point on the trip route, wherein, when the flex point is that user advances along trip route, direct of travel
The point for changing.
Preferably, the surrounding features key point is the key point around the trip route, also, the periphery
Feature key points include the point around the trip route with setting feature.
Preferably, the electronic map data transmitting device also includes：Data compressing module 730.
The data compressing module 730 is used to, in the trip route data submitted to according to client, generate electricity waiting for transmission
After sub- map datum, the electronic map data waiting for transmission is compressed.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
Will be appreciated by those skilled in the art that above-mentioned of the invention each module or each step can use general meter
Calculate device to realize, they can be concentrated on single computing device, or are distributed in the network that multiple computing devices are constituted
On, alternatively, they can be realized with the executable program code of computer installation, such that it is able to be stored in storage
Performed by computing device in device, or they are fabricated to each integrated circuit modules respectively, or will be many in them
Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention be not restricted to any specific hardware and
The combination of software.
Each embodiment in this specification is described by the way of progressive, what each embodiment was stressed be with
The difference of other embodiment, same or analogous part between each embodiment mutually referring to.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relation belong to be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or behaviour
There is any this actual relation or order between work.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for those skilled in the art
For, the present invention can have various changes and change.It is all any modifications made within spirit and principles of the present invention, equivalent
Replace, improve etc., should be included within the scope of the present invention.
Claims (12)
1. a kind of electronic map off-line data method for organizing, it is characterised in that including：
Receive the trip route data that client is submitted to；
According to the trip route data that client is submitted to, electronic map data waiting for transmission is generated, the electronic map data is used
In complete trip route is shown, the electronic map data is included on trip route, and setting range along trip route
The map datum of the coverage of interior key point；
The electronic map data of generation is transmitted to client.
2. method according to claim 1, it is characterised in that according to the trip route data that client is submitted to, generation is treated
The electronic map data of transmission includes：
Trip route data are parsed, at least one key point in setting range along trip route is extracted；
Calculate the coverage of key point；
The coverage of the key point is merged, body of a map or chart waiting for transmission is generated；
Using the electronic map data in body of a map or chart waiting for transmission as electronic map data waiting for transmission.
3. method according to claim 1, it is characterised in that according to the trip route data that client is submitted to, generation is treated
The electronic map data of transmission includes：
Trip route data are parsed, at least one key point in setting range along trip route is extracted；
Calculate the coverage of key point；
The electronic map piecemeal that the coverage of key point is related to is used as electronic map piecemeal waiting for transmission；
Using the set of electronic map piecemeal waiting for transmission as electronic map data waiting for transmission.
4. according to the method in claim 2 or 3, it is characterised in that the key point include route characteristic key point and
Surrounding features key point.
5. method according to claim 4, it is characterised in that：
The route characteristic key point is the spaced points of the first setpoint distance of flex point or interval on the trip route；
The surrounding features key point is at a distance of the second setpoint distance and with the information of setting feature with the trip route
Point.
6. method according to claim 1, it is characterised in that in the trip route data submitted to according to client, generation
After electronic map data waiting for transmission, also include：
The electronic map data waiting for transmission is compressed.
7. a kind of electronic map off-line data tissue device, it is characterised in that including：
Trip route receiver module, the trip route data for receiving client submission；
Digital map module, for the trip route data submitted to according to client, generates electronic map number waiting for transmission
According to, the electronic map data is used to show complete trip route that the electronic map data to be included on trip route, and
The map datum of the coverage of the key point along trip route in setting range；
Electronic map transport module, for the electronic map data of generation to be transmitted to client.
8. device according to claim 7, it is characterised in that the digital map module includes：
First key point extraction unit, for being parsed to trip route data, along extraction trip route in setting range
At least one key point；
First coverage computing unit, the coverage for calculating key point；
Coverage combining unit, for the coverage of the key point to be merged, generates body of a map or chart waiting for transmission；
First digital map unit, for using the electronic map data in body of a map or chart waiting for transmission as electricity waiting for transmission
Sub- map datum.
9. device according to claim 7, it is characterised in that the digital map module includes：
Second key point extraction unit, for being parsed to trip route data, along extraction trip route in setting range
At least one key point；
Second coverage computing unit, the coverage for calculating key point；
Piecemeal determining unit, for the electronic map piecemeal that is related to the coverage of key point as electronic map waiting for transmission
Piecemeal；
Second digital map unit, for using the set of electronic map piecemeal waiting for transmission as electronic map waiting for transmission
Data.
10. device according to claim 8 or claim 9, it is characterised in that the key point include route characteristic key point and
Surrounding features key point.
11. devices according to claim 10, it is characterised in that：
The route characteristic key point is the spaced points of the first setpoint distance of flex point or interval on the trip route；
The surrounding features key point is at a distance of the second setpoint distance and with the information of setting feature with the trip route
Point.
12. devices according to claim 7, it is characterised in that also include：
Data compressing module, in the trip route data submitted to according to client, generating electronic map data waiting for transmission
Afterwards, the electronic map data waiting for transmission is compressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203473.1A CN103968847B (en) | 2014-05-14 | 2014-05-14 | Electronic map off-line data method for organizing and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410203473.1A CN103968847B (en) | 2014-05-14 | 2014-05-14 | Electronic map off-line data method for organizing and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103968847A CN103968847A (en) | 2014-08-06 |
| CN103968847B true CN103968847B (en) | 2017-06-23 |
Family
ID=51238640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410203473.1A Active CN103968847B (en) | 2014-05-14 | 2014-05-14 | Electronic map off-line data method for organizing and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103968847B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104580506B (en) * | 2015-01-26 | 2018-07-06 | 腾讯科技（深圳）有限公司 | Acquisition methods, cloud server and the client of offline map datum |
| WO2016191674A1 (en) * | 2015-05-28 | 2016-12-01 | Google Inc. | Dynamically integrating offline and online data in a geographic application |
| CN106257241A (en) * | 2015-06-17 | 2016-12-28 | 深圳市腾讯计算机系统有限公司 | A kind of off-line map method for down loading and device |
| CN105824899B (en) * | 2016-03-15 | 2019-05-21 | 深圳市两步路信息技术有限公司 | A kind of method for down loading of the offline map based on tile technology |
| CN106226794A (en) * | 2016-08-24 | 2016-12-14 | 惠州Tcl移动通信有限公司 | A kind of off-line air navigation aid based on mobile terminal, system and mobile terminal |
| CN106599220A (en) * | 2016-12-16 | 2017-04-26 | 北京小米移动软件有限公司 | Line information output method and device and equipment |
| US10353931B2 (en) * | 2016-12-30 | 2019-07-16 | DeepMap Inc. | High definition map and route storage management system for autonomous vehicles |
| CN111385317B (en) * | 2018-12-27 | 2021-09-07 | 华为技术有限公司 | Data transmission method, device and system |
| CN114760363A (en) * | 2022-06-15 | 2022-07-15 | 广州磐钴智能科技有限公司 | Beidou communication data transmission compression implementation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102209114A (en) * | 2011-05-24 | 2011-10-05 | 深圳市凯立德科技股份有限公司 | Dynamic map downloading method, server and location-based service terminal |
| CN103471610A (en) * | 2013-09-24 | 2013-12-25 | 沈阳美行科技有限公司 | Navigation method capable of supporting on-line and off-line modes |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3994365B2 (en) * | 1999-09-03 | 2007-10-17 | アイシン・エィ・ダブリュ株式会社 | Navigation device and storage medium |
| TWI239384B (en) * | 2003-07-16 | 2005-09-11 | Denso Corp | Route setting device, roadway data, roadway data memory medium, guiding apparatus |
| JP4501717B2 (en) * | 2005-02-17 | 2010-07-14 | 株式会社デンソー | Navigation device and program |
| CN101086806A (en) * | 2006-06-06 | 2007-12-12 | 同济大学 | A system and method for onboard terminal based on traffic information grid platform |
-
2014
- 2014-05-14 CN CN201410203473.1A patent/CN103968847B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102209114A (en) * | 2011-05-24 | 2011-10-05 | 深圳市凯立德科技股份有限公司 | Dynamic map downloading method, server and location-based service terminal |
| CN103471610A (en) * | 2013-09-24 | 2013-12-25 | 沈阳美行科技有限公司 | Navigation method capable of supporting on-line and off-line modes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103968847A (en) | 2014-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103968847B (en) | Electronic map off-line data method for organizing and device | |
| JP6326407B2 (en) | Method and system for updating a digital map | |
| CN1967524B (en) | Collecting and inquiry system of traffic information and method thereof | |
| EP2624235A2 (en) | Route guidance system, route guidance server apparatus and navigation terminal apparatus | |
| US10203214B2 (en) | Method and apparatus for filtering device location points in a sampled trajectory while maintaining path reconstructability | |
| CN101836080A (en) | A method of processing positioning data | |
| CN105474205A (en) | Semantic naming model | |
| CN106323313A (en) | A mobile device and method and system for transmission of data thereto | |
| CN102467827A (en) | Traffic information providing system and terminal and method of providing traffic information using the same | |
| CN105678412A (en) | Path planning method and device facing multiple passengers | |
| CN103822630B (en) | The transfering navigation method of a kind of public transport and system | |
| CN103906993A (en) | Method and apparatus for constructing a road network based on point-of-interest (poi) information | |
| CN105339935A (en) | Methods, devices and computer software for facilitating searching and display of locations relevant to a digital map | |
| CN104318768A (en) | Hadoop based self-adaption traffic information tiled map generating system and method | |
| CN105138569B (en) | A kind of generation, application method and the geography of bubble data spit slot information system | |
| CN103177189B (en) | Register Data Quality Analysis method in a kind of many source positions | |
| CN107291963B (en) | KNN query method and system under road network moving environment | |
| CN103064953B (en) | Position-based is registered the POI update method of data | |
| CN103902555A (en) | Method, device and system for sharing point of interest | |
| CN105682104A (en) | Mobile communication site planning method and system | |
| CN103984766A (en) | Bus route query method and device | |
| Aburukba et al. | Fog Computing approach for shared mobility in smart cities | |
| CN102496279A (en) | Method and device for system configuration of floating car | |
| CN103218406B (en) | The processing method and equipment of the address information of point of interest | |
| CN103344237B (en) | Pedestrian, vehicle navigation route Auto-matching terminal, system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |