CN105631038A - Generation method and system of navigation map as well as electronic equipment with system - Google Patents
Generation method and system of navigation map as well as electronic equipment with system Download PDFInfo
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- CN105631038A CN105631038A CN201610023946.9A CN201610023946A CN105631038A CN 105631038 A CN105631038 A CN 105631038A CN 201610023946 A CN201610023946 A CN 201610023946A CN 105631038 A CN105631038 A CN 105631038A
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
- G06F16/31—Indexing; Data structures therefor; Storage structures
- G06F16/316—Indexing structures
- G06F16/322—Trees
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
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Abstract
The invention provides a generation method of a navigation map. The generation method comprises the following steps: cutting pre-stored map data according to a pre-set cutting rule, and forming a map sheet index tree by the cut map data, wherein the map data comprises first map element data and second map element data; organizing the first map element data and the second map element data according to pre-processing units; programming the map data which is organized according to a pre-set organization manner into an index file, wherein the index file comprises a plurality of sub index files; loading the map sheet index tree to the sub index files which correspond to map sheet index tree one by one according to the pre-processing units; storing the sub index files loaded with the map sheet index tree respectively. According to the generation method of the navigation map, the map data of a region of a part required by a user is independently mounted or independently upgraded after the user searches, so that the occupation of an equipment space is reduced, the consumption of flow in an online map upgrading process is reduced and the user does not need to wait for too long time.
Description
Technical field
The invention belongs to smart electronics technical field of transportation, particularly relate to the generation method and system of a kind of navigation map, and there is the electronic equipment of this system.
Background technology
In many driving auxiliary equipment of automobile, in-vehicle navigation apparatus is owing to can help user to know the accurate location of oneself at any time, and self-service planning can go to the route of destination, so extensively configuring in the car. In-vehicle navigation apparatus is mainly by built-in GPS (GlobalPositioningSystem, global positioning system) antenna receive arrival gps satellite transmission position coordinates, and the position coordinates of reception and the electronic chart of storage are matched, so that it is determined that the accurate location of automobile.
But, whole nation navigation map product data are relatively larger at present, usually reach the capacity of 6,7G, if carried out online upgrading, can expend relatively various flow and wait long period. And take bigger device memory. And much user need not drive substantially far on the way, it is only necessary to the map of periphery provinces and cities is just passable. So can be separated by map, by regional organization (province or city), such user can only select the subregion map oneself needed of installing or upgrade, it is not necessary to whole map datum of installing or upgrade.
Therefore, how the generation method and system of a kind of navigation map is provided, and there is the electronic equipment of this system, existing in the art owing to navigation map product data are excessive to solve, if it is also long that online upgrading navigation map can expend relatively various flow and update time, more can take in a large number device memory cause cannot user's request is separately installed more or the defect of the independent upgrading required part map datum of user, real become the technical problem that practitioner in the art is urgently to be resolved hurrily.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide the generation method and system of a kind of navigation map, and there is the electronic equipment of this system, for solving in prior art owing to navigation map product data are excessive, if it is also long that online upgrading navigation map can expend relatively various flow and update time, more can take in a large number device memory cause cannot more user's request separately installed or independent upgrading the required part map datum of user problem.
For achieving the above object and other relevant purposes, one aspect of the present invention provides a kind of generation method of navigation map, and the generation method of described navigation map comprises the following steps: the map datum prestored is carried out cutting so that the map datum after cutting is formed map sheet index tree according to predetermined cuts rule; Described map datum includes the first map element data and the second map element data; Described first map element data are pressed together with predetermined process unit organization with the second map element data; The map datum organized by predetermined organizational form is worked out in a predetermined format into index file; Wherein, described index file includes multiple subindex file; By described map sheet index tree with described predetermined process unit-loaded to in its one to one subindex file; Store the subindex file having loaded map sheet index tree respectively.
In one embodiment of the invention, it is that unit carries out cutting to cut capacity threshold that described predetermined cuts rule refers to described map datum on two-dimensional space by region or province/city.
In one embodiment of the invention, described predetermined organization unit refers to by region or in units of province/municipality directly under the Central Government/special administrative region/autonomous region.
In one embodiment of the invention, described first map element data include the water system in map datum, greenery patches, administrative region, road, track, footpath, caption point; Described second map element data include the Topology connection data of road.
In one embodiment of the invention, the generation method of described navigation map also includes: by described road and ground caption point composition retrieval data, and by described road or ground caption point with from as the center of circle, the road that includes with default value for the coverings map sheet that radius is formed and caption point link; When retrieving described road or ground caption point, determine with described road or ground caption point for the center of circle by on-link mode (OLM), with default value be radius coverings map sheet with retrieve described road or the periphery of caption point.
Another aspect of the present invention also provides for the generation system of a kind of navigation map, the generation system of described navigation map includes: cutting module, for the map datum prestored is carried out cutting so that the map datum after cutting is formed map sheet index tree according to predetermined cuts rule; Described map datum includes the first map element data and the second map element data; Molded tissue block, is connected with described cutting module, for pressing together with predetermined process unit organization by described first map element data with the second map element data; Compiling module, is connected with described cutting module and molded tissue block, for working out as index file in a predetermined format by the map datum organized by predetermined organizational form; Wherein, described index file includes multiple subindex file; Load-on module, is connected with described compiling module, for by described map sheet index tree with described predetermined process unit-loaded to in its one to one subindex file; Memory module, is connected with described load-on module, for storing the subindex file loading map sheet index tree respectively.
In one embodiment of the invention, it is that unit carries out cutting to cut capacity threshold that the predetermined cuts rule in described cutting module refers to described map datum on two-dimensional space by region or province/city.
In one embodiment of the invention, described first map element data include the water system in map datum, greenery patches, administrative region, road, track, footpath, caption point; Described second map element data include the Topology connection data of road.
In one embodiment of the invention, described compiling module is additionally operable to described road and ground caption point composition retrieval data, and by described road or ground caption point with from as the center of circle, the road that includes with default value for the coverings map sheet that radius is formed and caption point link; When retrieving described road or ground caption point, determine with described road or ground caption point for the center of circle by on-link mode (OLM), with default value be radius coverings map sheet with retrieve described road or the periphery of caption point.
Another aspect of the invention provides a kind of electronic equipment, including: the generation system of described navigation map.
As it has been described above, the generation method and system of the navigation map of the present invention, and there is the electronic equipment of this system, have the advantages that
The generation method and system of navigation map of the present invention, and the electronic equipment with this system ensures that navigation map can at independently installed after user search or the required part region of standalone upgrade user map datum, reduce taking the device space, and reduce online upgrading map time flow consumption, wait the long time without user.
Accompanying drawing explanation
Fig. 1 is shown as the generation method of the navigation map of present invention schematic flow sheet in an embodiment.
Fig. 2 is shown as the generation system of the navigation map of present invention theory structure schematic diagram in an embodiment.
Fig. 3 is shown as the theory structure schematic diagram of the electronic equipment of the present invention.
Element numbers explanation
The generation system of 1 navigation map
11 cutting modules
12 molded tissue blocks
13 compiling module
14 load-on modules
15 memory modules
2 electronic equipments
S1��Sn step
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art the content disclosed by this specification can understand other advantages and effect of the present invention easily. The present invention can also be carried out by additionally different detailed description of the invention or apply, and the every details in this specification based on different viewpoints and application, can also carry out various modification or change under the spirit without departing from the present invention. It should be noted that, when not conflicting, following example and the feature in embodiment can be mutually combined.
It should be noted that, the diagram provided in following example only illustrates the basic conception of the present invention in a schematic way, then assembly that in graphic, only display is relevant with the present invention but not component count when implementing according to reality, shape and size drafting, during its actual enforcement, the kenel of each assembly, quantity and ratio can be a kind of random change, and its assembly layout kenel is likely to increasingly complex.
Embodiment one
The present embodiment provides a kind of generation method of navigation map, and the generation method of described navigation map comprises the following steps:
The map datum prestored is carried out cutting so that the map datum after cutting is formed map sheet index tree according to predetermined cuts rule; Described map datum includes the first map element data and the second map element data;
Described first map element data are pressed together with predetermined process unit organization with the second map element data;
The map datum organized by predetermined organizational form is worked out in a predetermined format into index file; Wherein, described index file includes multiple subindex file;
By described map sheet index tree with described predetermined process unit-loaded to in its one to one subindex file;
Store the subindex file having loaded map sheet index tree respectively.
Below with reference to diagram, the generation method of the navigation map described in the present embodiment is described in detail. The generation method of the navigation map described in the present embodiment can be used for in-vehicle navigation apparatus, and the operation of described in-vehicle navigation apparatus relies primarily on global positioning system (GlobalPositioningSystem is called for short GPS) and carries out. The hardware of described in-vehicle navigation apparatus includes the ingredients such as chip, antenna, processor, internal memory, screen, button, speaker. Refer to Fig. 1, be shown as the generation method of the navigation map schematic flow sheet in an embodiment. As it is shown in figure 1, the generation method of described navigation map specifically includes following step:
S1, carries out cutting so that the map datum after cutting is formed map sheet index tree by the map datum prestored according to predetermined cuts rule; Described map datum includes the first map element data and the second map element data. In the present embodiment, described predetermined cuts rule refers to described map datum on two-dimensional space by region or province/city is that unit carries out cutting to cut capacity threshold.
Such as, the described two-dimensional space map datum that map datum is China prestored, it is unit by two-dimensional space map datum according to region or province/city, in the present embodiment, by economizing the two-dimensional space map datum of China as unit, to cut capacity threshold, for instance, in the present embodiment cutting capacity threshold is set to 2000Kb. In other words, by the two-dimensional space map datum of China according to economizing as the cutting of unit elder generation, then the map datum cutting of each province becomes cutting capacity threshold again is the data block of 2000Kb.
Wherein, described map datum includes the first map element data and the second map element data. Described first map element data include the water system in map datum, greenery patches, administrative region, road, track, footpath, caption point. Described second map element data include the Topology connection data of road. In the present embodiment, described first map element data also referred to as background display data, i.e. map background video data. Described second map element data calculate data also referred to as road network.
S2, will form the map datum of map sheet index tree map sheet index tree, namely described first map element data be pressed together with predetermined process unit organization with the second map element data after cutting. In the present embodiment, described predetermined organization unit refers to by region or in units of province/municipality directly under the Central Government/special administrative region/autonomous region. Such as, there are 23 provinces, 4 municipalities directly under the Central Government, 2 special administrative regions, 5 autonomous regions in China, namely the first map element data in each province, each municipality directly under the Central Government, each special administrative region and each autonomous region and the second map element data set is woven in together.
S3, works out the map datum organized by predetermined organizational form in a predetermined format as index file; Wherein, described index file includes multiple subindex file. In the present embodiment, the map datum organized by predetermined organizational form is worked out in a predetermined format the map datum specifically referring to organize together according to the predetermined organizational form that province/municipality directly under the Central Government/special administrative region/autonomous region is unit in step S2 for index file and work out index file in a predetermined format. Described predetermined format is for representing each province, each municipality directly under the Central Government, each special administrative region and each municipal particular code and file destination title one_to_one corresponding. In the present embodiment, each province, each municipality directly under the Central Government, each special administrative region and each municipal particular code include each province, each municipality directly under the Central Government, each special administrative region and each municipal particular code, such as, administrative coding, postcode, car plate number, according to land area size, greatly code is set to little order by land area, or code etc. is set according to size of population order from more to less. Such as, the code of Beijing is 010, corresponding with the file that file directory name is called 1. The code in Shanghai City is 021, corresponding with the file that file directory is 2. The present embodiment is not limited to above several code, every can represent province, municipality directly under the Central Government, special administrative region, municipal code are included in the present invention. In the present embodiment, described index file includes multiple subindex file, the subindex file of the plurality of subindex file i.e. each province, the subindex file of each municipality directly under the Central Government, the subindex file of each special administrative region, each municipal subindex file. In the present embodiment, described step S3 also includes described road and ground caption point composition retrieval data, and by described road or ground caption point with from as the center of circle, the road that includes with default value for the coverings map sheet that radius is formed and caption point link. When retrieving described road or ground caption point, determine with described road or ground caption point for the center of circle by on-link mode (OLM), with default value be radius (default value is set in the present embodiment for 30KM) coverings map sheet with retrieve described road or the periphery of caption point. In the present embodiment, retrieved by the mode such as title or phonetic owing to the retrieval of map is typically all, originally inquire about according to province, as long as data are stored according to economizing single cent part. Periphery is retrieved, determines, by fixing scope (such as 30KM is the circle of radius), the map sheet that this circle covers, then pass through the corresponding table of map sheet and province, it is determined that need to load the data of several province, thus can realize periphery retrieval and transprovincially search for.
S4, by described map sheet index tree with described predetermined process unit-loaded to in its one to one subindex file. The map datum of map sheet index tree map sheet index tree will be formed after cutting, it is namely the subindex file that unit is loaded into its each province one to one by described first map element data and the second map element data by corresponding province, municipality directly under the Central Government, special administrative region and autonomous region, the subindex file of each municipality directly under the Central Government, the subindex file of each special administrative region, in each municipal subindex file.
S5, store the subindex file having loaded map sheet index tree respectively to generate navigation map, it is about to be loaded with the subindex file of each province of map sheet index tree, the subindex file of each municipality directly under the Central Government, the subindex file of each special administrative region, each municipal subindex file stores respectively. Owing to each province, municipality directly under the Central Government, special administrative region, autonomous region are that independent loads then ensures that navigation map can according to user's request, the map datum of independently installed or standalone upgrade subregion after user search.
The generation method of the navigation map described in the present embodiment ensures that navigation map can at independently installed after user search or the required part region of standalone upgrade user map datum, reduce taking the device space, and reduce online upgrading map time flow consumption, wait the long time without user.
Embodiment two
The present embodiment provides the generation system 1 of a kind of navigation map, refers to Fig. 2, is shown as the generation system of the navigation map theory structure schematic diagram in an embodiment. As in figure 2 it is shown, the generation system 1 of described navigation map includes: cutting module 11, molded tissue block 12, compiling module 13, load-on module 14 and memory module 15.
Described cutting module 11 is for carrying out cutting so that the map datum after cutting is formed map sheet index tree by the map datum prestored according to predetermined cuts rule; Described map datum includes the first map element data and the second map element data. In the present embodiment, it is that unit carries out cutting to cut capacity threshold that the predetermined cuts rule prestored in described cutting module 11 refers to described map datum on two-dimensional space by region or province/city.
Such as, the described two-dimensional space map datum that map datum is China prestored, it is unit by two-dimensional space map datum according to region or province/city, in the present embodiment, by economizing the two-dimensional space map datum of China as unit, to cut capacity threshold, for instance, in the present embodiment cutting capacity threshold is set to 2000Kb. In other words, by the two-dimensional space map datum of China according to economizing as the cutting of unit elder generation, then the map datum cutting of each province becomes cutting capacity threshold again is the data block of 2000Kb.
Wherein, described map datum includes the first map element data and the second map element data. Described first map element data include the water system in map datum, greenery patches, administrative region, road, track, footpath, caption point. Described second map element data include the Topology connection data of road. In the present embodiment, described first map element data also referred to as background display data, i.e. map background video data. Described second map element data calculate data also referred to as road network.
Described first map element data, for the map datum by forming map sheet index tree map sheet index tree after cutting, are namely pressed together with predetermined process unit organization by the molded tissue block 12 being connected with described cutting module 11 with the second map element data. In the present embodiment, described predetermined organization unit refers to by region or in units of province/municipality directly under the Central Government/special administrative region/autonomous region. Such as, there are 23 provinces, 4 municipalities directly under the Central Government, 2 special administrative regions, 5 autonomous regions in China, namely the first map element data in each province, each municipality directly under the Central Government, each special administrative region and each autonomous region and the second map element data set is woven in together.
The compiling module 13 being connected with described cutting module 11 and molded tissue block 12 is for working out as index file in a predetermined format by the map datum organized by predetermined organizational form; Wherein, described index file includes multiple subindex file. In the present embodiment, described compiling module 13 works out index file in a predetermined format specifically for the map datum organized together according to the predetermined organizational form that province/municipality directly under the Central Government/special administrative region/autonomous region is unit. Described predetermined format is for representing each province, each municipality directly under the Central Government, each special administrative region and each municipal particular code and file destination title one_to_one corresponding. In the present embodiment, each province, each municipality directly under the Central Government, each special administrative region and each municipal particular code include each province, each municipality directly under the Central Government, each special administrative region and each municipal particular code, such as, administrative coding, postcode, car plate number, according to land area size, greatly code is set to little order by land area, or code etc. is set according to size of population order from more to less. Such as, the code of Beijing is 010, corresponding with the file that file directory name is called 1. The code in Shanghai City is 021, corresponding with the file that file directory is 2. The present embodiment is not limited to above several code, every can represent province, municipality directly under the Central Government, special administrative region, municipal code are included in the present invention. In the present embodiment, described index file includes multiple subindex file, the subindex file of the plurality of subindex file i.e. each province, the subindex file of each municipality directly under the Central Government, the subindex file of each special administrative region, each municipal subindex file.
The load-on module 14 being connected with described compiling module 13 for by described map sheet index tree with described predetermined process unit-loaded to in its one to one subindex file. The map datum of map sheet index tree map sheet index tree will be formed after cutting, it is namely the subindex file that unit is loaded into its each province one to one by described first map element data and the second map element data by corresponding province, municipality directly under the Central Government, special administrative region and autonomous region, the subindex file of each municipality directly under the Central Government, the subindex file of each special administrative region, in each municipal subindex file.
The memory module 15 being connected with described load-on module 14 is for storing the subindex file loading map sheet index tree respectively to generate navigation map, namely described memory module 15 will be loaded with the subindex file of each province of map sheet index tree, the subindex file of each municipality directly under the Central Government, the subindex file of each special administrative region, each municipal subindex file stores respectively. Owing to each province, municipality directly under the Central Government, special administrative region, autonomous region are that independent loads then ensures that navigation map can according to user's request, the map datum of independently installed or standalone upgrade subregion after user search.
The present embodiment also provides for a kind of electronic equipment 2, refers to Fig. 3 and is shown as the theory structure schematic diagram of electronic equipment. As it is shown on figure 3, described electronic equipment 2 includes the generation system 1 of above-mentioned navigation map. Electronic equipment 2 can be in-vehicle navigation apparatus in the present embodiment.
In sum, the generation method and system of navigation map of the present invention, and the electronic equipment with this system ensures that navigation map can at independently installed after user search or the required part region of standalone upgrade user map datum, reduce taking the device space, and reduce online upgrading map time flow consumption, wait the long time without user. So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment is illustrative principles of the invention and effect thereof only, not for the restriction present invention. Above-described embodiment all under the spirit and category of the present invention, can be modified or change by any those skilled in the art. Therefore, art has usually intellectual such as modifying without departing from all equivalences completed under disclosed spirit and technological thought or change, must be contained by the claim of the present invention.
Claims (10)
1. the generation method of a navigation map, it is characterised in that the generation method of described navigation map comprises the following steps:
The map datum prestored is carried out cutting so that the map datum after cutting is formed map sheet index tree according to predetermined cuts rule; Described map datum includes the first map element data and the second map element data;
Described first map element data are pressed together with predetermined process unit organization with the second map element data;
The map datum organized by predetermined organizational form is worked out in a predetermined format into index file; Wherein, described index file includes multiple subindex file;
By described map sheet index tree with described predetermined process unit-loaded to in its one to one subindex file;
Store the subindex file having loaded map sheet index tree respectively.
2. the generation method of navigation map according to claim 1, it is characterised in that: it is that unit carries out cutting to cut capacity threshold that described predetermined cuts rule refers to described map datum on two-dimensional space by region or province/city.
3. the generation method of navigation map according to claim 1, it is characterised in that: described predetermined organization unit refers to by region or in units of province/municipality directly under the Central Government/special administrative region/autonomous region.
4. the generation method of navigation map according to claim 1, it is characterised in that:
Described first map element data include the water system in map datum, greenery patches, administrative region, road, track, footpath, caption point;
Described second map element data include the Topology connection data of road.
5. the generation method of navigation map according to claim 4, it is characterised in that: the generation method of described navigation map also includes:
By described road and ground caption point composition retrieval data, and by described road or ground caption point with from as the center of circle, the road that includes with default value for the coverings map sheet that radius is formed and caption point link;
When retrieving described road or ground caption point, determine with described road or ground caption point for the center of circle by on-link mode (OLM), with default value be radius coverings map sheet with retrieve described road or the periphery of caption point.
6. the generation system of a navigation map, it is characterised in that the generation system of described navigation map includes:
Cutting module, for carrying out cutting so that the map datum after cutting is formed map sheet index tree by the map datum prestored according to predetermined cuts rule; Described map datum includes the first map element data and the second map element data;
Molded tissue block, is connected with described cutting module, for pressing together with predetermined process unit organization by described first map element data with the second map element data;
Compiling module, is connected with described cutting module and molded tissue block, for working out as index file in a predetermined format by the map datum organized by predetermined organizational form; Wherein, described index file includes multiple subindex file;
Load-on module, is connected with described compiling module, for by described map sheet index tree with described predetermined process unit-loaded to in its one to one subindex file;
Memory module, is connected with described load-on module, for storing the subindex file loading map sheet index tree respectively.
7. the generation system of navigation map according to claim 6, it is characterised in that: it is that unit carries out cutting to cut capacity threshold that the predetermined cuts rule in described cutting module refers to described map datum on two-dimensional space by region or province/city.
8. the generation system of navigation map according to claim 6, it is characterised in that:
Described first map element data include the water system in map datum, greenery patches, administrative region, road, track, footpath, caption point;
Described second map element data include the Topology connection data of road.
9. the generation system of navigation map according to claim 8, it is characterized in that: described compiling module is additionally operable to described road and ground caption point composition retrieval data, and by described road or ground caption point with from as the center of circle, the road that includes with default value for the coverings map sheet that radius is formed and caption point link;
When retrieving described road or ground caption point, determine with described road or ground caption point for the center of circle by on-link mode (OLM), with default value be radius coverings map sheet with retrieve described road or the periphery of caption point.
10. an electronic equipment, it is characterised in that including:
The generation system of the navigation map as according to any one of claim 6-9.
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