CN101206253A - Device and method for synchronism update of map data on handhold GPS terminal device - Google Patents
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Abstract
The invention relates to a device and a method for synchronous updating of the map data in a handheld GPS terminal device. The device comprises a map database as well as a map data engine module and a synchronous module which are connected in turn, wherein, the synchronous module comprises a communication functional unit and an execution functional unit; the execution functional unit is connected with the map data engine module, while the communication functional unit is connected with the communication functional unit of an opposite terminal device through a data communication link. The method includes the following steps that: data communication connection is set up; a synchronous updating command is transmitted to an opposite terminal; the opposite terminal carries out command analysis; the map data engine module, which carries out map data searching and data extraction according to the type of the command, sends the results to the opposite terminal through the synchronous module, or completes map data insertion and reconstruction and updates system timestamp. The device and the method reduce system overhead and increase data exchange efficiency; moreover, user-defined data information is automatically protected from being covered by updated data according to requirements.
Description
Technical field
The present invention relates to the handheld device field, particularly handhold GPS terminal device technical field specifically is meant the device and method of the synchronism update of map data on a kind of handhold GPS terminal device.
Background technology
In the modern life, people more and more use portable, hand-held device such as mobile phone, and have also more and more increased more function in these equipment, and wherein of paramount importance function is exactly a GPS-capable, and among this, most important is exactly the validity and the real-time of GPS locator data.And in the prior art, the Data Update of present GPS handheld device is only supported the covering fully of data, and the shortcoming of this way is clearly: the efficient of exchanges data is low, not the renewal of support sector's divided data.
For example: in the map datum in the whole nation,, but, but will make the copy fully of national map datum according to the implementation method of prior art if when the user only need upgrade the map in Shanghai City.And, if a side who is updated contains self-defining information, in the process of Data Update, just be easy to cause so lose, brought very big trouble with regard to the use of giving people like this.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, provide a kind of can according to user's requirement only upgrade part, exchanges data efficient that need to upgrade higher, protect User Defined data message, flexible and convenient to use, the usable range device and method of the synchronism update of map data on the handhold GPS terminal device comparatively widely automatically.
In order to realize above-mentioned purpose, the device and method of the synchronism update of map data on the handhold GPS terminal device of the present invention is as follows:
The device of the synchronism update of map data on this handhold GPS terminal device, comprise map data base and the map datum engine modules and the synchronization module that are connected with this map data base successively, its principal feature is, described synchronization module comprises the communication function unit and carries out functional unit, described execution functional unit is connected with described map datum engine modules, and described communication function unit is connected by the communication function unit in the synchronization module on data link and other handhold GPS terminal device or the computing machine.
The data link of the device of the synchronism update of map data on this handhold GPS terminal device can be wireless data communication link or wired data communication link.
This uses above-mentioned device to realize the method for synchronism update of map data on the handhold GPS terminal device, and its principal feature is that described method may further comprise the steps:
(1) handhold GPS terminal device is set up data communication by synchronization module with the synchronization module on other handhold GPS terminal device or the computing machine and is connected;
(2) system operates according to the user, sends synchronous update command by synchronization module to the opposite end;
(3) peer-to-peer system receives corresponding order, and carries out command analysis by synchronization module and handle, and the result is delivered to the map datum engine modules;
(4) the map datum engine modules is judged the type of this order;
(5) be the data search order if this is ordered, then the map datum engine modules is carried out map datum and is searched and extract processing in map data base, and the result is delivered to synchronization module;
(6) synchronization module is sent to the opposite end with this result;
(7) insert order if this is ordered to data, then the map datum engine modules is carried out map datum insertion and reconstruction processing in map data base, and the timestamp information of update system.
Comprise command type, timestamp information and update content identification marking on this realization handhold GPS terminal device in the synchronous update command of the method for synchronism update of map data.
The update content identification marking of the method for synchronism update of map data comprises country code, city codes, administrative area code, data type and details on this realization handhold GPS terminal device.
This data type that realizes the method for synchronism update of map data on the handhold GPS terminal device can be road, terrestrial reference, river, railway or zone.
The command analysis of the method for synchronism update of map data is handled and be may further comprise the steps on this realization handhold GPS terminal device:
(1) synchronization module is judged the command type in the synchronous update command;
(2) if this command type for searching, the result of return data look-up command then;
(3) if this command type is for inserting the timestamp information in the then more synchronous update command and the timestamp information of local system;
(4) if the timestamp information synchronously in the update command newly in the timestamp information of local system, then return data inserts the result of order.
The map datum of the method for synchronism update of map data is searched and is extracted to handle and may further comprise the steps on this realization handhold GPS terminal device:
(1) the map datum engine modules is opened the terrestrial reference search index file and the data of map data base;
(2) according to the side-play amount of described update content identification marking inquiry corresponding data;
(3) in the landmark data file of map data base, extract descriptor;
(4) according to object identity extracted data information from the map space data of map data base;
(5) information of above-mentioned extraction is packed according to the form of systemic presupposition;
(6) continue the corresponding update content identification marking of inquiry if desired, then return step (2);
(7) packet that packing is obtained as a result of returns.
The side-play amount according to described update content identification marking inquiry corresponding data of the method for synchronism update of map data may further comprise the steps on this realization handhold GPS terminal device:
(1) inquires about national side-play amount according to country code;
(2) according to city codes inquiry city side-play amount;
(3) according to data type query type side-play amount;
(4) according to details inquiry prefix side-play amount.
Insertion of the map datum of the method for synchronism update of map data and reconstruction processing may further comprise the steps on this realization handhold GPS terminal device:
(1) map datum engine modules resolution data bag;
(2) if there are data to need to upgrade in the packet, then taking out from packet successively needs data updated information;
(3) keyword of data updated information inquires about in map data base whether corresponding record exists as required;
(4), then delete this corresponding record if exist;
(5) will need data updated information to be inserted in this map data base;
(6) the data updated information in the database regenerates index information according to the map.
Adopted the device and method of the synchronism update of map data on the handhold GPS terminal device of this invention, owing in terminal device, added synchronization module, and be connected with map data base by the map datum engine modules, thereby can be under user's order, the real-time demand with the user is sent on the opposite equip. by the mode of ordering, and through carrying out corresponding data search extraction processing or data insertion reconstruction processing after the opposite equip. resolve command, not only can only upgrade the part that needs renewal according to user's requirement, and reduced system overhead, improved the efficient of exchanges data, and the data that can protect the User Defined data message can not be updated automatically as required cover; Moreover, apparatus and method of the present invention use flexible, and usable range is comparatively extensive, bring great convenience for people's life, and make the GPS technology to be accepted by more people and to use.
Description of drawings
Fig. 1 is the system architecture synoptic diagram of the device of the synchronism update of map data on the handhold GPS terminal device of the present invention.
Fig. 2 is the structural representation of the synchronization module in the device of the synchronism update of map data on the handhold GPS terminal device of the present invention.
Fig. 3 is the workflow diagram of the method for the synchronism update of map data on the handhold GPS terminal device of the present invention.
Fig. 4 is the data search and the process flow diagram that extracts processing of the method for the synchronism update of map data on the handhold GPS terminal device of the present invention.
Fig. 5 is that the data of the method for the synchronism update of map data on the handhold GPS terminal device of the present invention are inserted and the process flow diagram of reconstruction processing.
Fig. 6 is the spatial data index operational architecture synoptic diagram in the map data base of the present invention.
Fig. 7 is the structural relation synoptic diagram of the map data of description in the map data base of the present invention.
Embodiment
In order more to be expressly understood technology contents of the present invention, describe in detail especially exemplified by following examples.
See also illustrated in figures 1 and 2, the device of the synchronism update of map data on this handhold GPS terminal device, comprise map data base 1 and the map datum engine modules 2 that is connected with this map data base 1, wherein, described device also comprises synchronization module 3, this synchronization module 3 is connected with map datum engine modules 2, and this synchronization module 3 is connected with synchronization module 3 or computing machine on other handhold GPS terminal device or the computing machine by data link.
Wherein, described synchronization module 3 comprises communication function unit 31 and carries out functional unit 32, described execution functional unit 32 is connected with described map datum engine modules 2, and described communication function unit 31 is connected by the communication function unit 31 in the synchronization module 3 on data link and other handhold GPS terminal device.
Simultaneously, described data link can be wireless data communication link or wired data communication link.
See also Fig. 3 again to shown in Figure 5, the above-mentioned device of this use realizes that the method for synchronism update of map data on the handhold GPS terminal device may further comprise the steps:
(1) handhold GPS terminal device is set up data communication by synchronization module with the synchronization module on other handhold GPS terminal device or the computing machine and is connected;
(2) system operates according to the user, send synchronous update command by synchronization module to the opposite end, comprise command type, timestamp information and update content identification marking in this synchronous update command, wherein, this update content identification marking comprises country code, city codes, administrative area code, data type and details, and data type wherein can be road, terrestrial reference, river, railway or zone;
(3) peer-to-peer system receives corresponding order, and carries out command analysis by synchronization module and handle, and the result is delivered to the map datum engine modules, and this command analysis is handled and be may further comprise the steps:
(a) synchronization module is judged the command type in the synchronous update command;
(b) if this command type for searching, the result of return data look-up command then;
(c) if this command type is for inserting the timestamp information in the then more synchronous update command and the timestamp information of local system;
(d) if the timestamp information synchronously in the update command newly in the timestamp information of local system, then return data inserts the result of order;
(4) the map datum engine modules is judged the type of this order;
(5) be the data search order if this is ordered, then the map datum engine modules is carried out map datum and is searched and extract processing in map data base, and the result is delivered to synchronization module, and this is searched and extract to handle and may further comprise the steps:
(a) the map datum engine modules is opened the terrestrial reference search index file and the data of map data base;
(b) according to the side-play amount of described update content identification marking inquiry corresponding data, may further comprise the steps:
(i) inquire about national side-play amount according to country code;
(ii) according to city codes inquiry city side-play amount;
(iii) according to data type query type side-play amount;
(iv) according to details inquiry prefix side-play amount;
(c) in the landmark data file of map data base, extract descriptor;
(d) according to object identity extracted data information from the map space data of map data base;
(e) information of above-mentioned extraction is packed according to the form of systemic presupposition;
(f) continue the corresponding update content identification marking of inquiry if desired, then return step (b);
(g) packet that packing is obtained as a result of returns;
(6) synchronization module is sent to the opposite end with this result;
(7) insert order if this is ordered to data, then the map datum engine modules is carried out map datum insertion and reconstruction processing in map data base, and the timestamp information of update system, and this insertion and reconstruction processing may further comprise the steps:
(a) map datum engine modules resolution data bag;
(b) if there are data to need to upgrade in the packet, then taking out from packet successively needs data updated information;
(c) keyword of data updated information inquires about in map data base whether corresponding record exists as required;
(d), then delete this corresponding record if exist;
(e) will need data updated information to be inserted in this map data base;
(f) the data updated information in the database regenerates index information according to the map.
In the middle of reality is used, suppose to have handheld device A, B need carry out Data Update, divide from walking upwards of data so, multiple mode can be arranged, such as:
(1) A → B is promptly with the B that updates the equipment of the corresponding data in the device A.
(2) B → A is promptly with the A that updates the equipment of the corresponding data in the equipment B.
(3) Merge, promptly device A, B two device intercommunicatings have or not.
(4) other.
Get in touch by synchronization module 3 between the equipment, and absorb or the reconstruct local datas by map datum engine modules 2 separately.
Synchronization module wherein is divided into two parts,
(1) be responsible for the communication of equipment room, the communication function unit 31 (Communication Function Unit) of data transmission, the transmission of synchronous foundation of equipment room and data is responsible in the communication function unit, comprises wire communication, radio communication or the like mode;
(2) be responsible for the execution functional unit 32 (Execute Function Unit) that command analysis is carried out, carry out functional unit 32 and be responsible for the parsing of order, and notice map datum engine modules 2 (Map Data Engine) do corresponding action, as: picked-up data and packing, perhaps the data that receive are put into map data base 1 (Map Database).Carry out the timestamp that functional unit 32 can produce map information updates (, then need not upgrade) if compare when comparatively identical when two equipment timestamps, and the identification marking ID of update content.
Indicate required data updated among one of the identification marking ID and be any one or multiple combination in road (ROAD), terrestrial reference (POI), river (RIVER), railway (RAILWAY), zone (AREA) or the like, and some concrete lastest imformations.Carry out functional unit 32 and differentiate the user successively and want the particular content that upgrades, and invocation map data engine module 2 is searched or typing in map data base 1.The concrete form of ID can be defined according to concrete application voluntarily by the user, below form be a kind of concrete instance of the present invention:
| Country code | City codes | The administrative area code | Data type | Details | Other |
Wherein, indicate required data updated type in one of the data type, comprise such as
1) road (ROAD)
2) terrestrial reference (POI)
3) river (RIVER)
4) railway (RAILWAY)
5) zone (AREA)
In any one or multiple combination.
For map data base 1 (Map Database), see also shown in Figure 6ly, wherein, map data base 1 is divided into spatial data and data of description, and spatial data comprises the geospatial location information of data; Data of description comprises the humane information of data, such as: country, classification, city, postcode, keyword title or the like.
(1) map space data
Map data base spatial data search efficiency depends on whether good space index structure is arranged, and this kind index structure must be managed multidimensional and the spatial data of volume is arranged, and removes to read spatial data in the specified scope with minimum disk access and minimum access speed.
The present invention can adopt the R_tree dynamic index structure that is proposed by Guttman in 1984, and it is a kind of height balanced tree similar in appearance to B_tree, can search, insert spatial data and operation such as deletion.
Use the advantage of R_tree space index structure:
● can accurately grasp spatial data in the required scope via R_tree spatial database index structure, not have the problem of the unnecessary extracting of data.
● only deposit the R_tree index structure in the memory body, solid data then leaves in the disk, and the spatial object data just can be read in when needed to memory body, as save the use amount of memory body this moment.
● owing to solid data is stored in the disk, so limit than the no datat storage volume.
● the index value according to the R_tree record grasps desired data to disk, do not have unnecessary disk operating.
In order to increase the search speed of data object, when real doing, can add a B_tree index file, be used for writing down the position of each object in archives.
So the spatial data index structure is made up of R_tree index structure, B_tree index file and spatial object data file three parts.
(2) map data of description
For Database Systems, a good search index structure can also can make things convenient for the user to find required data fast so that System Operation is more efficient.
With the terrestrial reference search index is example, according to the electronic map data that GIS map manufacturer is provided, every landmark data contains fields such as terrestrial reference title, terrestrial reference numbering, terrestrial reference kind, terrestrial reference belonging country, the affiliated city of terrestrial reference, the affiliated postcode of terrestrial reference, terrestrial reference coordinate.Be to improve the terrestrial reference search efficiency, the user can self manufacture terrestrial reference search index file, and form is from ordering, and sees also shown in Figure 7ly, and objID wherein is B among Fig. 6
+ObjID in the _ tree index file.
For map datum engine modules 2 (Map Data Engine), because map datum engine modules 2 is the difference of data layout according to the map, and company, the purposes difference of exploitation, different on the implementation method of details, but its function all can realize the reconstruct of the searching of map datum, picked-up or local data.
Usually on terminal, there is special interface to realize these functions, such as, choose the country that needs inquiry, city, administrative area etc. by the user, and the classification of searching, such as, related datas such as road, terrestrial reference, restaurant.After the user imported corresponding scope, the map datum engine can be finished and search, insertion, the reconstruct work of extraction and data.
Suppose that step is as follows with the Shanghai City landmark data of the terminal A Shanghai City landmark data of new terminal B (only be designated as example with ground herein, other categorical data is in like manner) more:
(1) searches and extracts the Shanghai City landmark data at the A end.
When the extraction work of carrying out data, the form of packing data all can be ordered certainly, as long as A, B terminal can both identifications, shown in following table:
(2) in the insertion of B end, reconstruct Shanghai City landmark data.
The B end is received the packet of sending, and identification needs the type of renewal, parses every data then, inserts data file, upgrades index.
Adopted the device and method of the synchronism update of map data on the above-mentioned handhold GPS terminal device, owing in terminal device, added synchronization module 3, and be connected with map data base 1 by map datum engine modules 2, thereby can be under user's order, the real-time demand with the user is sent on the opposite equip. by the mode of ordering, and through carrying out corresponding data search extraction processing or data insertion reconstruction processing after the opposite equip. resolve command, not only can only upgrade the part that needs renewal according to user's requirement, and reduced system overhead, improved the efficient of exchanges data, and the data that can protect the User Defined data message can not be updated automatically as required cover; Moreover, apparatus and method of the present invention use flexible, and usable range is comparatively extensive, bring great convenience for people's life, and make the GPS technology to be accepted by more people and to use.
In this instructions, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, instructions and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (10)
1. the device of the synchronism update of map data on the handhold GPS terminal device, comprise map data base and the map datum engine modules and the synchronization module that are connected with this map data base successively, it is characterized in that, described synchronization module comprises the communication function unit and carries out functional unit, described execution functional unit is connected with described map datum engine modules, and described communication function unit is connected by the communication function unit in the synchronization module on data link and other handhold GPS terminal device or the computing machine.
2. the device of the synchronism update of map data on the handhold GPS terminal device according to claim 1 is characterized in that, described data link is wireless data communication link or wired data communication link.
3. method of using the described device of claim 1 to realize synchronism update of map data on the handhold GPS terminal device is characterized in that described method may further comprise the steps:
(1) handhold GPS terminal device is set up data communication by synchronization module with the synchronization module on other handhold GPS terminal device or the computing machine and is connected;
(2) system operates according to the user, sends synchronous update command by synchronization module to the opposite end;
(3) peer-to-peer system receives corresponding order, and carries out command analysis by synchronization module and handle, and the result is delivered to the map datum engine modules;
(4) the map datum engine modules is judged the type of this order;
(5) be the data search order if this is ordered, then the map datum engine modules is carried out map datum and is searched and extract processing in map data base, and the result is delivered to synchronization module;
(6) synchronization module is sent to the opposite end with this result;
(7) insert order if this is ordered to data, then the map datum engine modules is carried out map datum insertion and reconstruction processing in map data base, and the timestamp information of update system.
4. the method for synchronism update of map data is characterized in that on the realization handhold GPS terminal device according to claim 3, comprises command type, timestamp information and update content identification marking in the described synchronous update command.
5. the method for synchronism update of map data is characterized in that on the realization handhold GPS terminal device according to claim 4, and described update content identification marking comprises country code, city codes, administrative area code, data type and details.
6. the method for synchronism update of map data is characterized in that on the realization handhold GPS terminal device according to claim 5, and described data type is road, terrestrial reference, river, railway or zone.
7. according to the method for synchronism update of map data on each described realization handhold GPS terminal device in the claim 4 to 6, it is characterized in that described command analysis is handled and be may further comprise the steps:
(1) synchronization module is judged the command type in the synchronous update command;
(2) if this command type for searching, the result of return data look-up command then;
(3) if this command type is for inserting the timestamp information in the then more synchronous update command and the timestamp information of local system;
(4) if the timestamp information synchronously in the update command newly in the timestamp information of local system, then return data inserts the result of order.
8. according to the method for synchronism update of map data on claim 5 or the 6 described realization handhold GPS terminal devices, it is characterized in that described map datum is searched and extracted to handle and may further comprise the steps:
(1) the map datum engine modules is opened the terrestrial reference search index file and the data of map data base;
(2) according to the side-play amount of described update content identification marking inquiry corresponding data;
(3) in the landmark data file of map data base, extract descriptor;
(4) according to object identity extracted data information from the map space data of map data base;
(5) information of above-mentioned extraction is packed according to the form of systemic presupposition;
(6) continue the corresponding update content identification marking of inquiry if desired, then return step (2);
(7) packet that packing is obtained as a result of returns.
9. the method for synchronism update of map data is characterized in that on the realization handhold GPS terminal device according to claim 8, and described side-play amount according to described update content identification marking inquiry corresponding data may further comprise the steps:
(1) inquires about national side-play amount according to country code;
(2) according to city codes inquiry city side-play amount;
(3) according to data type query type side-play amount;
(4) according to details inquiry prefix side-play amount.
10. according to the method for synchronism update of map data on each described realization handhold GPS terminal device in the claim 6 to 7, it is characterized in that described map datum inserts and reconstruction processing may further comprise the steps:
(1) map datum engine modules resolution data bag;
(2) if there are data to need to upgrade in the packet, then taking out from packet successively needs data updated information;
(3) keyword of data updated information inquires about in map data base whether corresponding record exists as required;
(4), then delete this corresponding record if exist;
(5) will need data updated information to be inserted in this map data base;
(6) the data updated information in the database regenerates index information according to the map.
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| CN109791209A (en) * | 2017-04-06 | 2019-05-21 | 华为技术有限公司 | A kind of localization method and device |
| CN114136307A (en) * | 2021-12-07 | 2022-03-04 | 上汽大众汽车有限公司 | Full-automatic updating method for vehicle-mounted navigation map |
| CN114136307B (en) * | 2021-12-07 | 2024-01-26 | 上汽大众汽车有限公司 | Full-automatic map updating method for vehicle navigation system |
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