CN102012231B - Data updating method and device - Google Patents
Data updating method and device Download PDFInfo
- Publication number
- CN102012231B CN102012231B CN201010534556.0A CN201010534556A CN102012231B CN 102012231 B CN102012231 B CN 102012231B CN 201010534556 A CN201010534556 A CN 201010534556A CN 102012231 B CN102012231 B CN 102012231B
- Authority
- CN
- China
- Prior art keywords
- data
- gps data
- gps
- map
- map match
- 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
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000005516 engineering process Methods 0.000 abstract description 2
- 241001269238 Data Species 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
Images
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
- G01C21/38—Electronic maps specially adapted for navigation; Updating thereof
- G01C21/3863—Structures of map data
- G01C21/387—Organisation of map data, e.g. version management or database structures
- G01C21/3881—Tile-based structures
-
- 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
- G01C21/38—Electronic maps specially adapted for navigation; Updating thereof
- G01C21/3804—Creation or updating of map data
- G01C21/3807—Creation or updating of map data characterised by the type of data
- G01C21/3815—Road data
- G01C21/3819—Road shape data, e.g. outline of a route
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Databases & Information Systems (AREA)
- Navigation (AREA)
- Instructional Devices (AREA)
Abstract
The invention discloses a data updating method and a data updating device, relates to data processing technology, and aims to solve the problem that the data period for updating a navigation electronic map is longer in the prior art. The technical scheme comprises the following steps of: performing map matching processing on global position system (GPS) data to acquire the GPS data failed in map matching; acquiring a GPS data cluster group for reflecting road shapes from the GPS data failed in map matching; and updating the GPS data cluster group into the navigation electronic map. The data updating method and the data updating device can be applied to data updating of the navigation electronic map.
Description
Technical field
The present invention relates to data processing technique, particularly a kind of data-updating method and device.
Background technology
GPS (Global Positioning System, GPS) satellite navigation and GPS location-based service more and more are subject to people's favor, and people are also more and more higher to the quality requirements of gps satellite navigation and GPS location-based service.As the core component of gps satellite navigation and GPS location-based service, people also progressively improve the trend of the times of map of navigation electronic and the requirement of fineness.
At present, the main process of the Data Update of map of navigation electronic is the field data collection.Existing field data acquisition mode is: use geodata to gather car, the streets and lanes in the geographic area of travelling, in the geographic area all roads carry out data acquisition and checking.
When using existing field data acquisition mode to upgrade the data of map of navigation electronic, the inventor finds, at least have following problem: the data refresh mode of existing map of navigation electronic need to gather the data of whole roads in the geographic area, the specific aim that does not have field data to gather, the cycle that gathers the data of whole roads in the geographic area is longer, the delta data of road can not catch timely and be updated in the map of navigation electronic, causes map of navigation electronic not have the higher trend of the times.
Summary of the invention
Embodiments of the invention provide a kind of data-updating method and device, can upgrade fast the data of map of navigation electronic.
On the one hand, provide a kind of data-updating method, comprising: gps data is carried out map match process, obtain the gps data of map match failure; From the gps data of described map match failure, obtain the gps data cluster family of reflection road shape; Described gps data cluster family is updated in the map of navigation electronic.
On the other hand, provide a kind of data update apparatus, comprising:
The first data acquisition module is used for that gps data is carried out map match and processes, and obtains the gps data of map match failure;
Cluster family acquisition module, the gps data that is used for the map match failure of obtaining from described the first data acquisition module obtains the gps data cluster family of reflection road shape;
The map update module is used for the gps data cluster family that described cluster family acquisition module obtains is updated to map of navigation electronic.
The data-updating method that the embodiment of the invention provides and device, process by gps data being carried out map match, gps data cluster family for reflection road shape in the gps data of map match failure verifies and is updated in the map of navigation electronic, has realized the Data Update of map of navigation electronic.The embodiment of the invention has solved the long problem of data cycle of prior art renewal map of navigation electronic, can upgrade fast the data of map of navigation electronic, has improved the trend of the times of map of navigation electronic.
Description of drawings
The process flow diagram of the data-updating method that Fig. 1 provides for the embodiment of the invention;
The process flow diagram one of the data-updating method that Fig. 2 provides for another embodiment of the present invention;
The flowchart 2 of the data-updating method that Fig. 3 provides for another embodiment of the present invention;
The process flow diagram of step 203 in the data-updating method that Fig. 4 provides for another embodiment of the present invention shown in Figure 3;
The structural representation one of the data update apparatus that Fig. 5 provides for further embodiment of this invention;
Fig. 6 is the structural representation of cluster family acquisition module shown in Figure 5;
The structural representation two of the data update apparatus that Fig. 7 provides for further embodiment of this invention;
Fig. 8 is the structural representation of map update module shown in Figure 5.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Upgrade the problem that the data cost is higher and the cycle is long of map of navigation electronic in order to solve prior art, the embodiment of the invention provides a kind of data-updating method and device.
As shown in Figure 1, the data-updating method that the embodiment of the invention provides comprises:
Step 101 is carried out map match to gps data and is processed, and obtains the gps data of map match failure.
In the present embodiment, gps data can comprise latitude and longitude coordinates, instantaneous velocity, time and the information such as orientation take positive north as benchmark that GPS is ordered.
In the present embodiment, the efficient of processing in order to improve map match, step 101 can be processed gps data by subregion.Take border circular areas as example, in the step 101 gps data being carried out the process that map match processes can comprise: obtain in gps data centered by the GPS point, radius is the interior whole roads of border circular areas of R, and wherein the interval of R is generally 20m≤R≤90m; Determine this GPS point whole projector distance of roads in the border circular areas; If the projector distance of whole roads that this GPS selects is all greater than the angle of the threshold value m rice of setting and GPS point orientation and the road threshold value n greater than setting, then this GPS point map match failure, wherein, the interval of m is generally (20,70), the interval of n is generally (60 °, 80 °).The GPS point of all map match failures consists of the gps data of map match failure.
Step 102 is obtained the gps data cluster family of reflecting road shape from the gps data of map match failure.
In the present embodiment, step 102 can use the Density Clustering algorithm based on grid to obtain gps data cluster family, and the actual method of obtaining the gps data cluster family of reflection road shape can have a variety of, does not give unnecessary details one by one at this.
Step 103 is updated to gps data cluster family in the map of navigation electronic.
In the present embodiment, the gps data cluster family of the reflection road shape that obtains from step 102, can process such as smoothing processing etc. through some, acquisition can reflect the gps data of road shape preferably, and these gps datas that can reflect preferably road shape generally are zonal arrangement.The gps data of these reflection road shapes is in time offered the manufacturer of map of navigation electronic, for these gps datas, the field data acquisition personnel in time verify and confirm, and are updated in the map of navigation electronic, can realize the Data Update of map of navigation electronic.
The data-updating method that the embodiment of the invention provides, process by gps data being carried out map match, gps data cluster family for reflection road shape in the gps data of map match failure verifies and is updated in the map of navigation electronic, has realized the Data Update of map of navigation electronic.The embodiment of the invention has solved the long problem of data cycle of prior art renewal map of navigation electronic, can upgrade fast the data of map of navigation electronic, has improved the trend of the times of map of navigation electronic.
In order to enable those skilled in the art to that there is clearer and more definite understanding in the described gps data cluster family that obtains the reflection road shape from the gps data of map match failure of the embodiment of the invention, so that further understand the technical scheme that the embodiment of the invention provides, as shown in Figure 2, the idiographic flow of the data-updating method that another embodiment of the present invention provides comprises:
In the present embodiment, it is similar to step 101 that step 201 obtains the process of gps data of map match failure, gives unnecessary details no longer one by one at this.
In the present embodiment, the urban geography zone at the gps data place of map match failure comprises at least one grid cell.The urban geography zone at gps data place evenly can be divided into p*q grid on longitude and latitude direction, wherein, p and q are the integer greater than 0, the length of grid and the scope of width are generally 20～50 meters, the scope of length and width is less, and the result of the gps data of gridding processing map match failure is more accurate.
In the present embodiment, step 203 can be according to the distribution density of the gps data of map match failure in each grid cell, reject density less than the grid cell of predetermined threshold value, merge adjacent density and be not less than the grid cell of predetermined threshold value, get access to gps data cluster family.
In the present embodiment, threshold value is generally set in the following way in the step 203: the distribution density of grid cell by gps data sorted from high to low, if the distribution density of gps data changes greater than a, can be with the distribution density of the gps data of the biggest drop as threshold value, for example, distribution density is 1000,800,700,300,80,50 gps data, then can choose 300 as threshold value; If the distribution density of gps data changes less than a, can be with the numerical value of particular percentile as threshold value, for example, the distribution density of the grid cell with 30% is as threshold value.Wherein, a is the number greater than 0, can set as required.
In the present embodiment, verify and confirm for the ease of the map of navigation electronic manufacturer, step 204 can be to the processing that carries out curve fitting of gps data cluster family, obtain a curve that can indicate road shape, it is added in the map of navigation electronic, just can be for verifying on producing and confirming.Wherein, link change can comprise: road shape changes and/or new added road.
Further, as shown in Figure 3, present embodiment can also comprise:
In the present embodiment, can be according to the data of urban renewal map of navigation electronic, therefore can only obtain the gps data in this urban geography zone, these gps datas can be that the vehicle (Floating Car) that the GPS device is housed sends, and prior art utilizes these gps datas that real-time transport information is provided.
In the present embodiment, step 206 is obtained gps data by the vehicle that the GPS device is housed, rather than carries out image data by the map data collecting car, can reduce the cost of the Data Update of map of navigation electronic.
In the present embodiment, can set up suitable database according to time, spatial characteristics and the large characteristics of gps data amount of gps data, the storage gps data.
In the present embodiment, the data of format error can comprise: the gps data of the gps data outside the timestamp scope and orientation angles mistake.
Further, as shown in Figure 4, the data-updating method that present embodiment provides, step 203 can also comprise:
In the present embodiment, if step 2034 judged result be the distribution density of grid cell less than threshold value, then execution in step 2035 is labeled as noise with grid cell.
In the present embodiment, if the result that step 2036 is judged is not for having accessed whole grid cells, then execution in step 2032, continue to obtain the not grid cell of access, if accessed whole grid cells, then execution in step 2037, merge the grid cell that an adjacent mark has been accessed, obtain gps data cluster family.
The data-updating method that the embodiment of the invention provides, process by gps data being carried out map match, gps data cluster family for reflection road shape in the gps data of map match failure verifies and is updated in the map of navigation electronic, has realized the Data Update of map of navigation electronic.The embodiment of the invention has solved the long problem of data cycle of prior art renewal map of navigation electronic, can upgrade fast the data of map of navigation electronic, has improved the trend of the times of map of navigation electronic.
The data update apparatus that further embodiment of this invention provides as shown in Figure 5, comprising:
The first data acquisition module 501 is used for that gps data is carried out map match and processes, and obtains the gps data of map match failure.
In the present embodiment, the efficient of processing in order to improve map match, the first data acquisition module 501 can be processed gps data by subregion.Take border circular areas as example, in the first data acquisition module 501 gps data being carried out the process that map match processes can comprise: obtain in gps data centered by the GPS point, radius is the interior whole roads of border circular areas of R, and wherein the interval of R is generally 20m≤R≤90m; Determine this GPS point whole projector distance of roads in the border circular areas; If the projector distance of whole roads that this GPS selects is all greater than the angle of the threshold value m rice of setting and GPS point orientation and the road threshold value n greater than setting, then this GPS point map match failure, wherein, the interval of m is generally (20,70), the interval of n is generally (60 °, 80 °).The GPS point of all map match failures consists of the gps data of map match failure.
Cluster family acquisition module 502, the gps data that is used for the map match failure of obtaining from the first data acquisition module obtains the gps data cluster family of reflection road shape.
In the present embodiment, cluster family acquisition module 502 can use the Density Clustering algorithm based on grid to obtain gps data cluster family, and the actual method of obtaining the gps data cluster family of reflection road shape can have a variety of, does not give unnecessary details one by one at this.
In the present embodiment, the gps data cluster family of the reflection road shape that obtains from cluster family acquisition module 502, can process such as smoothing processing through some etc., acquisition can reflect the gps data of road shape preferably, and these gps datas that can reflect preferably road shape generally are zonal arrangement.The gps data of these reflection road shapes is in time offered the manufacturer of map of navigation electronic, for these gps datas, the field data acquisition personnel in time verify and confirm, and are updated in the map of navigation electronic, can realize the Data Update of map of navigation electronic.
Further, as shown in Figure 6, cluster family acquisition module 502 can also comprise:
Distribution density calculating sub module 5021 is used for calculating the gps data of map match failure in the distribution density of each grid cell.
In the present embodiment, the urban geography zone at the gps data place of map match failure comprises at least one grid cell.The urban geography zone at gps data place evenly can be divided into p*q grid on longitude and latitude direction, wherein, p and q are the integer greater than 0, the length of grid and the scope of width are generally 20～50 meters, the scope of length and width is less, and the result of the gps data of gridding processing map match failure is more accurate.
Present embodiment distribution density calculating sub module 5021 can service routine be identified the distribution density that gets access to the gps data of map match failure in each grid cell, the number that namely GPS of map match failure is ordered in each grid cell.Wherein, gps data can comprise many GPS points.
Cluster family obtains submodule 5022, is used for obtaining the gps data cluster family that grid cell that distribution density that the distribution density calculating sub module calculates is not less than predetermined threshold value forms.
In the present embodiment, cluster family obtains submodule 5022 can be according to the distribution density of the gps data of map match failure in each grid cell, reject density less than the grid cell of predetermined threshold value, merge adjacent density and be not less than the grid cell of predetermined threshold value, get access to gps data cluster family.
In the present embodiment, cluster family obtains generally in the following way setting of threshold value in the submodule 5022: the distribution density of grid cell by gps data sorted from high to low, if the distribution density of gps data changes greater than a, can be with the distribution density of the gps data of the biggest drop as threshold value, for example, distribution density is 1000,800,700,300,80,50 gps data, then can choose 300 as threshold value; If the distribution density of gps data changes less than a, can be with the numerical value of particular percentile as threshold value, for example, the distribution density of the grid cell with 30% is as threshold value.Wherein, a is the number greater than 0, can set as required.
The cluster family that present embodiment provides obtains submodule 5022, and to obtain the method for gps data cluster family similar to step 203, gives unnecessary details no longer one by one at this.
Further, as shown in Figure 7, the data update apparatus that present embodiment provides can also comprise:
The second data acquisition module 504 is used for obtaining described gps data by the vehicle that the GPS device is housed.
In the present embodiment, can be according to the data of urban renewal map of navigation electronic, therefore can only obtain the gps data in this urban geography zone, these gps datas can be that the vehicle (Floating Car) that the GPS device is housed sends, and prior art utilizes these gps datas that real-time transport information is provided.
In the present embodiment, the second data acquisition module 504 obtains gps data by the vehicle that the GPS device is housed, rather than carries out image data by the map data collecting car, can reduce the cost of the Data Update of map of navigation electronic.
In the present embodiment, can set up suitable database according to time, spatial characteristics and the large characteristics of gps data amount of gps data, the storage gps data.
Further, as shown in Figure 8, map update module 503 can also comprise:
Curve acquisition submodule 5031 is used for obtaining the curve that is comprised of GPS point the gps data of described map match failure from gps data cluster family.
In the present embodiment, verify and confirm for the ease of the map of navigation electronic manufacturer, curve acquisition submodule 5031 can be to the processing that carries out curve fitting of gps data cluster family, obtain a curve that can indicate road shape, it is added in the map of navigation electronic, just can be for verifying on producing and confirming.Wherein, link change can comprise: road shape changes and/or new added road.
Map updating submodule 5032, the curve that is used for described curve acquisition submodule is obtained is updated to map of navigation electronic.
The data update apparatus that the embodiment of the invention provides, process by gps data being carried out map match, gps data cluster family for reflection road shape in the gps data of map match failure verifies and is updated in the map of navigation electronic, has realized the Data Update of map of navigation electronic.The embodiment of the invention has solved the long problem of data cycle of prior art renewal map of navigation electronic, can upgrade fast the data of map of navigation electronic, has improved the trend of the times of map of navigation electronic.
The data-updating method that the embodiment of the invention provides and device can be applied in the Data Update of map of navigation electronic.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random access memory (RAM), internal memory, ROM (read-only memory) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
More than; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (6)
1. a data-updating method is characterized in that, comprising:
Gps data is carried out map match process, obtain the gps data of map match failure;
From the gps data of described map match failure, obtain the gps data cluster family of reflection road shape;
From gps data cluster family, obtain the curve that is formed by GPS point in the gps data of described map match failure;
Described curve is updated in the map of navigation electronic.
2. data-updating method according to claim 1 is characterized in that, the urban geography zone at the gps data place of described map match failure comprises at least one grid cell;
The described gps data cluster family that obtains the reflection road shape from the gps data of described map match failure comprises:
Calculate the gps data of described map match failure in the distribution density of each grid cell;
Obtain the gps data cluster family that described distribution density is not less than the grid cell composition of predetermined threshold value.
3. data-updating method according to claim 1 is characterized in that, describedly gps data is carried out map match processes, and obtains comprising before the gps data of map match failure:
Obtain described gps data by the vehicle that the GPS device is housed.
4. a data update apparatus is characterized in that, comprising:
The first data acquisition module is used for that gps data is carried out map match and processes, and obtains the gps data of map match failure;
Cluster family acquisition module, the gps data that is used for the map match failure of obtaining from described the first data acquisition module obtains the gps data cluster family of reflection road shape;
The map update module is used for the gps data cluster family that described cluster family acquisition module obtains is updated to map of navigation electronic;
Described map update module comprises:
The curve acquisition submodule is used for obtaining the curve that is comprised of GPS point the gps data of described map match failure from gps data cluster family;
The map updating submodule, the curve that is used for described curve acquisition submodule is obtained is updated to map of navigation electronic.
5. data update apparatus according to claim 4 is characterized in that, the urban geography zone at the gps data place of described map match failure comprises at least one grid cell;
Described cluster family acquisition module comprises:
The distribution density calculating sub module is used for calculating the gps data of described map match failure in the distribution density of each grid cell;
Cluster family obtains submodule, is used for obtaining the gps data cluster family that grid cell that distribution density that described distribution density calculating sub module calculates is not less than predetermined threshold value forms.
6. data update apparatus according to claim 4 is characterized in that, also comprises:
The second data acquisition module is used for obtaining described gps data by the vehicle that the GPS device is housed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010534556.0A CN102012231B (en) | 2010-11-03 | 2010-11-03 | Data updating method and device |
| PCT/CN2011/077745 WO2012058952A1 (en) | 2010-11-03 | 2011-07-28 | Data update method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010534556.0A CN102012231B (en) | 2010-11-03 | 2010-11-03 | Data updating method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102012231A CN102012231A (en) | 2011-04-13 |
| CN102012231B true CN102012231B (en) | 2013-02-20 |
Family
ID=43842485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010534556.0A Active CN102012231B (en) | 2010-11-03 | 2010-11-03 | Data updating method and device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102012231B (en) |
| WO (1) | WO2012058952A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012231B (en) * | 2010-11-03 | 2013-02-20 | 北京世纪高通科技有限公司 | Data updating method and device |
| CN102819953B (en) * | 2012-08-23 | 2014-07-02 | 北京世纪高通科技有限公司 | Method and device for discovering suspected newly-added roads |
| GB201305131D0 (en) | 2013-03-20 | 2013-05-01 | Tomtom Dev Germany Gmbh | Methods and systems for detecting a closure of a navigable element |
| CN104121917B (en) * | 2013-04-28 | 2018-11-09 | 百度在线网络技术（北京）有限公司 | A kind of method and apparatus of automatic discovery newly building bridge |
| CN104422451A (en) * | 2013-08-30 | 2015-03-18 | 高德软件有限公司 | Road recognition method and road recognition apparatus |
| CN104677363B (en) * | 2013-12-03 | 2017-04-12 | 高德软件有限公司 | Road generating method and road generating device |
| CN105387863B (en) * | 2015-12-09 | 2018-10-26 | 浙江网新恒天软件有限公司 | A method of it is identified and navigates for road unknown in existing navigation map |
| CN108282739A (en) * | 2017-01-06 | 2018-07-13 | 北京四维图新科技股份有限公司 | Geographic information data acquisition method, apparatus and system |
| CN109597901B (en) * | 2018-11-15 | 2021-11-16 | 韶关学院 | Data analysis method based on biological data |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308029A (en) * | 2007-05-16 | 2008-11-19 | 北京英华慧通科技发展有限公司 | Road network grid matching, road status messages and introduction route information acquisition method |
| CN101650190A (en) * | 2009-07-30 | 2010-02-17 | 北京四维图新科技股份有限公司 | Map change reporting method and navigation terminal |
| CN101694392A (en) * | 2009-09-29 | 2010-04-14 | 北京四维图新科技股份有限公司 | Map updating method of guidance terminal, guidance terminal and system thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6847887B1 (en) * | 2003-03-04 | 2005-01-25 | Navteq North America, Llc | Method and system for obtaining road grade data |
| CN101275854A (en) * | 2007-03-26 | 2008-10-01 | 日电（中国）有限公司 | Method and equipment for updating map data |
| CN101556165A (en) * | 2009-04-24 | 2009-10-14 | 方舟信息技术(苏州)有限公司 | Method for updating embedded mobile electronic map data base in real time |
| CN102012231B (en) * | 2010-11-03 | 2013-02-20 | 北京世纪高通科技有限公司 | Data updating method and device |
-
2010
- 2010-11-03 CN CN201010534556.0A patent/CN102012231B/en active Active
-
2011
- 2011-07-28 WO PCT/CN2011/077745 patent/WO2012058952A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308029A (en) * | 2007-05-16 | 2008-11-19 | 北京英华慧通科技发展有限公司 | Road network grid matching, road status messages and introduction route information acquisition method |
| CN101650190A (en) * | 2009-07-30 | 2010-02-17 | 北京四维图新科技股份有限公司 | Map change reporting method and navigation terminal |
| CN101694392A (en) * | 2009-09-29 | 2010-04-14 | 北京四维图新科技股份有限公司 | Map updating method of guidance terminal, guidance terminal and system thereof |
Non-Patent Citations (1)
| Title |
|---|
| René Brüntrup等.Incremental Map Generation with GPS Traces.《Proceedings of the 8th International IEEE Conference on Intelligent Transportation Systems》.2005,413-418. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102012231A (en) | 2011-04-13 |
| WO2012058952A1 (en) | 2012-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102012231B (en) | Data updating method and device | |
| CN107036572B (en) | A kind of agricultural machinery working area acquisition methods and device | |
| EP3719714B1 (en) | Machine learning system for classifying an area as vehicle way | |
| US9377313B2 (en) | Methods and systems for creating digital street network database | |
| US8306777B2 (en) | System and method for identifying road features | |
| CN101210825B (en) | Map information generating systems | |
| CN103438897B (en) | Based on the path locus bearing calibration of grating map | |
| US20120116678A1 (en) | Methods and systems for creating digital transportation networks | |
| US20080262721A1 (en) | Map generation system and map generation method by using GPS tracks | |
| CN104677363A (en) | Road generating method and road generating device | |
| CN102280031B (en) | Crossing traffic state recognition method based on floating car data | |
| CN102147260A (en) | Electronic map matching method and device | |
| CN101464158A (en) | Automatic generation method for road network grid digital map based on GPS positioning | |
| CN104422451A (en) | Road recognition method and road recognition apparatus | |
| CN105241465A (en) | Road update method | |
| CN103476044B (en) | The method and apparatus of positional information calibration | |
| JP2017003728A (en) | Map generation system, method, and program | |
| CN105574313B (en) | A kind of determination method and apparatus of category of roads | |
| CN103454614A (en) | Method for relative positioning between vehicles based on particle filters | |
| CN103472471B (en) | Method for judging serviceability of satellite navigation system information, processing module and terminal | |
| CN110426717A (en) | It is a kind of based on the co-located method and system of three-dimensional map assisted GNSS, positioning device, storage medium | |
| WO2011120193A1 (en) | Method, system and device for providing traffic information | |
| CN102496279B (en) | Method and device for system configuration of floating car | |
| CN104567840A (en) | New and old urban independent coordinate system fusion method | |
| CN114999162A (en) | Road traffic flow obtaining method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240223 Address after: C402D, 3rd Floor, Building C, No. 9 Shangdi 3rd Street, Haidian District, Beijing, 100085 Patentee after: Beijing Liufen Technology Co.,Ltd. Country or region after: China Address before: 100088 room 1002c, 10 / F, 7 Xueyuan Road, Haidian District, Beijing Patentee before: CENNAVI TECHNOLOGIES Co.,Ltd. Country or region before: China |
|
| TR01 | Transfer of patent right |