CN102222445A - Method, device and location-based service (LBS) terminal for updating map data - Google Patents
Method, device and location-based service (LBS) terminal for updating map data Download PDFInfo
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Abstract
The invention discloses a method, device and location-based service (LBS) terminal for updating map data. The method for updating map data comprises the following steps of: establishing an updated packet for the updated map data when the map data of an electronic map is updated; providing the updated packet to the LBS terminal so as to lead the LBS terminal to be stored in the updated packet independently; and extracting the updated map data from the updated packet by the LBS terminal if the updated map data needs to be extracted. According to the invention, the map data can be updated in time, the updated data volume is small, and the rapid extraction can be realized when the map data needs to be extracted.
Description
Technical field
The present invention relates to field of navigation technology, relate in particular to a kind of update method, device and location-based service terminal of map datum.
Background technology
The location-based service terminal is meant that equipment itself possesses the relevant various functions in position or equipment passes through the equipment of far-end online mode to user-provided location service and correlation function thereof.Location-based service equipment can be computer, mobile phone, navigator etc.
The location-based service terminal is example with the navigator, navigator can be a mobile unit, portable navigation device, cell phone apparatus etc., navigator is determined the position coordinates of ad-hoc location, the position coordinates of putting down in writing in the electronic chart that itself and self are stored mates, and determines the accurate position of navigation object in electronic chart of this navigator of lift-launch with this.
At present, electronic chart in the location-based service terminal (for example three months) usually at set intervals carries out a map edition upgrading, server is replaced the electronic chart of legacy version by the electronic chart of releasing redaction, but, the mode of map edition upgrading not only needs to transmit a large amount of redaction map datums, and the update cycle is longer, if between each map edition upgrading, just change appears in some map datum in the legacy version electronic chart, then can't upgrade at the map datum that changes timely, cause to guarantee that the location-based service terminal provides location-based service accurately to the user.
Summary of the invention
The update method, device and the location-based service terminal that the purpose of this invention is to provide a kind of map datum realize that the renewal of map datum is timely, data extract is convenient.
The objective of the invention is to be achieved through the following technical solutions:
On the one hand, the invention provides a kind of updating device of map datum, comprising:
When the map datum of electronic chart takes place to upgrade, for the map datum after upgrading is set up a more new data packets;
Described more new data packets is offered the location-based service terminal, so that described location-based service terminal is stored described more new data packets separately, and during the map datum after needs extract described renewal, described location-based service terminal is extracted the map datum after the described renewal from described more new data packets.
On the other hand, the invention provides a kind of updating device of map datum, comprising:
Set up the unit, be used for when the map datum of electronic chart takes place to upgrade, for the map datum after upgrading is set up a more new data packets;
The unit is provided, be used for the described described more new data packets of setting up the unit of setting up is offered the location-based service terminal, so that described location-based service terminal is stored described more new data packets separately, and during the map datum after needs extract described renewal, described location-based service terminal is extracted the map datum after the described renewal from described more new data packets.
On the one hand, the present invention also provides a kind of update method of map datum, comprising:
Obtain the more new data packets that server provides, when the map datum that described more new data packets is an electronic chart takes place to upgrade, the packet that described server is set up for the map datum after upgrading;
Being different from needs updated map data, stores described more new data packets separately;
During map datum after needs extract described renewal, from described more new data packets, extract the map datum after the described renewal.
On the other hand, the invention provides a kind of location-based service terminal, comprising:
Acquiring unit is used to obtain the more new data packets that server provides, when the map datum that described more new data packets is an electronic chart takes place to upgrade, and the packet that described server is set up for the map datum after upgrading;
Storage unit, being used to be different from needs updated map data, stores the more new data packets that described acquiring unit obtains separately;
Extraction unit, when being used for the map datum after needs extract described renewal, the map datum from the more new data packets of described cell stores after the described renewal of extraction.
As seen from the above technical solution provided by the invention, the update method of the map datum that the embodiment of the invention provides, device and location-based service terminal, when the map datum of electronic chart takes place to upgrade, by setting up a more new data packets for the map datum after upgrading, the renewal that realizes map datum is timely, and more amount of new data is little; New data packets offers the location-based service terminal by inciting somebody to action more, so that the independent storage update packet of location-based service terminal, and during the map datum after needs extract to upgrade, the location-based service terminal is extracted the map datum after upgrading from new data packets more, being implemented in when need extracting map datum can the rapid extraction map datum, guarantees that the location-based service terminal provides location-based service accurately according to the map datum after upgrading to the user.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The schematic flow sheet of the update method of the map datum that Fig. 1 provides for one embodiment of the invention.
The formation synoptic diagram one of the updating device of the map datum that Fig. 2 provides for one embodiment of the invention.
The formation synoptic diagram two of the updating device of the map datum that Fig. 3 provides for one embodiment of the invention.
The update method schematic flow sheet of the map datum that Fig. 4 provides for another embodiment of the present invention.
The formation synoptic diagram one of the location-based service terminal that Fig. 5 provides for one embodiment of the invention.
The formation synoptic diagram two of the location-based service terminal that Fig. 6 provides for one embodiment of the invention.
The formation synoptic diagram of the navigational system that Fig. 7 provides for one embodiment of the invention.
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 embodiments of the invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that is obtained under the creative work prerequisite.
Below in conjunction with accompanying drawing the embodiment of the invention is described in further detail.
As shown in Figure 1, the embodiment of the invention provides a kind of update method of map datum, comprising:
11, when the map datum of electronic chart takes place to upgrade, for the map datum after upgrading is set up a more new data packets.
12, will be more new data packets offer the location-based service terminal so that the independent storage update packet of location-based service terminal, and when needs extract map datum after upgrading, the location-based service terminal is extracted the map datum after upgrading from new data packets more.
The executive agent of the update method of embodiment of the invention map datum can be a server.
As seen from the above technical solution provided by the invention, when the map datum of electronic chart takes place to upgrade, by setting up a more new data packets for the map datum after upgrading, realize that the renewal of map datum is timely, more amount of new data is little; New data packets offers the location-based service terminal by inciting somebody to action more, so that the independent storage update packet of location-based service terminal, and during the map datum after needs extract to upgrade, the location-based service terminal is extracted the map datum after upgrading from new data packets more, being implemented in when need extracting map datum can the rapid extraction map datum, guarantees that the location-based service terminal provides location-based service accurately according to the map datum after upgrading to the user.
Particularly, the substance that constitutes map can be called map elements, and the readable form that various map elementses convert computing machine to is called map datum, and the data acquisition of each key element is called a data set.Map datum comprises position data, graph of a correspondence characteristic and geographical attribute data three parts of map elements space distribution.
Wherein, position data is represented the position of this map elements on map, for example can adopt coordinate, longitude and latitude or K representation.K sign indicating number information can comprise numeral and/or the English information that constitutes, K sign indicating number such as 8e3 78r f3g with the locative coding of textual form.
The graphic feature data can be summarized as the segmental arc nodal analysis method again, segmental arc is the core of fundamental figure on the map (point, line, surface), become the elementary cell of Computer Storage, point can be regarded as has only a segmental arc that coordinate is right, and face is the polygon that is made of one or more segmental arcs.Have only the polygon of a segmental arc to be called the island polygon.Segmental arc is made up of comprising 2 end points a string coordinate, and coordinate string order has determined the segmental arc trend, and end points is called node, and the branch of start node and terminal node is arranged, and each node links the segmental arc more than 2 or 2.Hinting obliquely at mutually between above-mentioned fundamental figure data is called the topological logic relation, is a kind of data structure that generally adopts in the current map data base.
The geographical attribute data are made up of different data item, as the attribute data of describing certain section river comprises title, code, width, length, grade, navigation degree and and the river data that concern between other map elementses on ground etc. of flowing through.Attribute data both had been attached to the space distribution position of corresponding map elements, became the foundation or the parameter of retrieval key element again, they can be formed several bivariate tables respectively, adopted the way to manage of general relational database.
Exemplary, when having important map datum to upgrade in certain zone, then server side will need updated map data to be made into more new data packets, described need in position data, shape facility and the attribute data that updated map data can comprise map elements each or multinomial, a for example a certain road has taken place to change its course, then the length in the position data of this road, shape facility and the attribute data, and other map elementses between the data etc. of relation all may change.
In addition, optionally, more new data packets can only comprise the data that change has taken place in the above-mentioned map elements, also can comprise all data of this map elements, and is unrestricted.
As seen, server adds one or more map datums that changed more in the new data packets, and the more new data packets that will make is then issued, to offer the location-based service terminal.The independent storage update packet of location-based service terminal, like this, during map datum after needs extract to upgrade, the location-based service terminal is directly extracted the map datum after upgrading from new data packets more, guarantee that the location-based service terminal provides location-based service accurately according to the map datum after upgrading to the user.
Optionally, the update method of embodiment of the invention map datum can also comprise:
Information update time of the map datum after determine upgrading, with update time information offer the location-based service terminal.
Exemplary, more can comprise the update mode of map elements, information update time of update mode such as this map datum in the new data packets.
As seen, the more new data packets of server issue is more in a period of time, upgrading demand of great-leap-forward may appear in the location-based service terminal, for example, the location-based service terminal is not downloaded the more new data packets of April, issue in May, then in June, when the location-based service terminal is selected the down loading updating packet, information update time of data can be downloaded the more new data packets of April, issue in May together according to the map.
As shown in Figure 2, corresponding to the update method of the map datum of the foregoing description, the embodiment of the invention provides a kind of updating device of map datum, comprising:
Set up unit 21, be used for when the map datum of electronic chart takes place to upgrade, for the map datum after upgrading is set up a more new data packets.
The updating device of embodiment of the invention map datum can be provided with separately or can be arranged at one with server.
As seen from the above technical solution provided by the invention, when the map datum of electronic chart takes place to upgrade, by setting up a more new data packets for the map datum after upgrading, realize that the renewal of map datum is timely, more amount of new data is little; New data packets offers the location-based service terminal by inciting somebody to action more, so that the independent storage update packet of location-based service terminal, and during the map datum after needs extract to upgrade, the location-based service terminal is extracted the map datum after upgrading from new data packets more, being implemented in when need extracting map datum can the rapid extraction map datum, guarantees that the location-based service terminal provides location-based service accurately according to the map datum after upgrading to the user.
Concrete, map datum comprises position data, graph of a correspondence characteristic and geographical attribute data three parts of map elements space distribution.Map datum can be understood with reference to the corresponding contents of the update method of the foregoing description map datum, does not repeat them here.
As shown in Figure 3, the updating device of embodiment of the invention map datum can also comprise:
Determining unit 31, information update time of the map datum after being used for determine upgrading, provide unit 22 this moment, also be used for update time information offer the location-based service terminal.
Concrete, the effect of determining unit can be understood with reference to the corresponding contents of the update method of the foregoing description map datum, does not repeat them here.
Simultaneously, the updating device of embodiment of the invention map datum and formation thereof can be understood with reference to the corresponding content of the update method of the foregoing description map datum, do not give unnecessary details at this.
As shown in Figure 4, the embodiment of the invention provides a kind of update method of map datum, comprising:
41, obtain the more new data packets that server provides, when more new data packets is the map datum generation renewal of electronic chart, the packet that server is set up for the map datum after upgrading.
42, be different from and need updated map data, separately the storage update packet.
43, during the map datum after needs extract to upgrade, from new data packets more, extract the map datum after upgrading.
The executive agent of the update method of embodiment of the invention map datum can be the location-based service terminal.
As seen from the above technical solution provided by the invention, the location-based service terminal is by obtaining the more new data packets that server provides, when more new data packets is the map datum generation renewal of electronic chart, the packet that server is set up for the map datum after upgrading, can use map datum after the renewal that changes when making the location-based service terminal can be after receiving packet necessary, the renewal that realizes map datum is timely, more amount of new data is little, guarantees that the location-based service terminal provides location-based service accurately to the user.By the independent storage update packet of location-based service terminal, during map datum after needs extract to upgrade, the location-based service terminal is extracted the map datum after upgrading from new data packets more, guarantee that the location-based service terminal provides location-based service accurately according to the map datum after upgrading to the user.
Concrete, map datum comprises position data, graph of a correspondence characteristic and geographical attribute data three parts of map elements space distribution.Map datum can be understood with reference to the corresponding contents of map datum in the foregoing description, does not repeat them here.
Optionally, obtain the more new data packets that server provides in the step 41, can comprise:
Information update time of the map datum after the renewal that provides according to server is obtained the more new data packets before update time.
Exemplary, the more new data packets of server issue is more in a period of time, upgrading demand of great-leap-forward may appear in the location-based service terminal, for example, the location-based service terminal is not downloaded the more new data packets of April, issue in May, then in June, when the location-based service terminal is selected the down loading updating packet, information update time of data can be downloaded the more new data packets of April, issue in May together according to the map.
Exemplary, step 42 is different from needs updated map data, independent storage update packet, can comprise: the location-based service terminal will be more data in the new data packets and the former map datum of location-based service terminal stored integrate, but more new data packets only is a form as an outer satchel, and more new data packets and former map datum can be stored in the storage medium of location-based service terminal.
Optionally, from new data packets more, extract the map datum after upgrading in the step 43, can comprise following dual mode:
Mode one:
According to new data packets more, correspondence identifies needs updated map data;
When carrying out that map shows or guidance path calculates when needing to extract map datum, judge whether the map datum that needs to extract has corresponding more new data packets, if then from new data packets more, extract the map datum after upgrading.
Exemplary, after the location-based service terminal receives more new data packets, according to upgrading packet content the map datum that has changed is identified in former map datum, when needs extract this map datum of use, can detect this map elements has more new data, so then goes to more to extract part or all of map datum in the new data packets and use.
Describedly need extract use to map datum and generally can be divided into two kinds of situations, a kind of situation is that the map demonstration is checked, be that position service terminal display interface need show this map elements, and can further check the data of this map elements according to user's operation; Another kind of situation is in guidance path computation process, and for example the user asks the calculating of location-based service terminal that the guidance path on A ground to B ground in the Enterprises of Futian District is provided, and needs to extract interior all road datas of whole Enterprises of Futian District usually and participates in calculating.
Mode two:
When carrying out that map shows or guidance path calculates when needing to extract map datum, judge whether the map datum after upgrading in the new data packets more belongs to the map datum that needs extract, if then from new data packets more, extract the map datum after the renewal.
Exemplary, when the location-based service terminal need be extracted map datum, check at first whether need to extract the map datum that uses is more having more new data in the new data packets, if have, the data that then location-based service terminal is extracted in the new data packets are more used, and the former map datum of the map elements that is updated is left in the basket.For example, check whether the map datum that need to extract uses has the mode of new data more whether to be included in the map area that current needs extract use for: the position data of checking the map elements that relates in the more new data in the new data packets more in new data packets more.
Optionally, from new data packets more, extract the map datum after upgrading in the step 43, can also comprise:
In when, updated map data taking place taking place repeatedly to upgrade when, from update time after more new data packets extract map datum after upgrading.
Exemplary, repeatedly upgrade when same map elements data generation, as all comprising the more new data of a certain map elements in the update package in May and June, then location-based service terminal is up-to-date data for the renewal The data update mode that overlaps.For example change has monthlyly taken place in May and 6 in certain road name and length, adopts the title and the length data in June when then location-based service terminal shows, the title and the length data in May are left in the basket.
As shown in Figure 5, corresponding to the update method of the map datum of the foregoing description, the embodiment of the invention provides a kind of location-based service terminal, comprising:
Acquiring unit 51 is used to obtain the more new data packets that server provides, when more new data packets is the map datum generation renewal of electronic chart, and the packet that server is set up for the map datum after upgrading.
As seen from the above technical solution provided by the invention, when the map datum of electronic chart takes place to upgrade, by setting up a more new data packets for the map datum after upgrading, realize that the renewal of map datum is timely, more amount of new data is little; New data packets offers the location-based service terminal by inciting somebody to action more, so that the independent storage update packet of location-based service terminal, and during the map datum after needs extract to upgrade, the location-based service terminal is extracted the map datum after upgrading from new data packets more, being implemented in when need extracting map datum can the rapid extraction map datum, guarantees that the location-based service terminal provides location-based service accurately according to the map datum after upgrading to the user.
Optionally, acquiring unit 51, information update time of the map datum after the renewal that can also be used for providing according to server is obtained the update time of more new data packets before.
Exemplary, the more new data packets of server issue is more in a period of time, the demand of great-leap-forward may appear in the location-based service terminal, for example, the location-based service terminal is not downloaded the more new data packets of April, issue in May, then in June, when the location-based service terminal is selected the down loading updating packet, information update time of data can be downloaded the more new data packets of April, issue in May together according to the map.
Exemplary, storage unit 52, specifically be used for the location-based service terminal will be more data in the new data packets and the former map datum of location-based service terminal stored integrate, but more new data packets only is a form as an outer satchel, and more new data packets and former map datum can be stored in the storage medium of location-based service terminal.
Optionally, extraction unit 53 can also be used for when updated map data taking place take place repeatedly to upgrade, from update time after more new data packets extract map datum after upgrading.
Exemplary, repeatedly upgrade when same map elements data generation, as all comprising the more new data of a certain map elements in the update package in May and June, then location-based service terminal is up-to-date data for the renewal The data update mode that overlaps.For example change has monthlyly taken place in May and 6 in certain road name and length, adopts the title and the length data in June when then location-based service terminal shows, the title and the length data in May are left in the basket.
As shown in Figure 6, extraction unit 53 can comprise:
Identify unit 61 is used for according to described more new data packets, and correspondence identifies the described updated map data that needs.
First judging unit 62 is used for judging whether the map datum that needs extraction has the more new data packets of correspondence when carrying out map demonstration or guidance path calculating needs extraction map datum.
Exemplary, after the location-based service terminal receives more new data packets, according to upgrading packet content the map datum that has changed is identified in former map datum, when needs extract this map datum of use, can detect this map elements has more new data, so then goes to more to extract part or all of map datum in the new data packets and use.
Perhaps, extraction unit 53 can comprise:
Second judging unit 64 is used for judging whether the map datum after upgrading in the described more new data packets belongs to the map datum that needs extract when carrying out map demonstration or guidance path calculating needs extraction map datum.
When carrying out that map shows or guidance path calculates when needing to extract map datum, judge whether the map datum that needs to extract has corresponding more new data packets, if then from new data packets more, extract the map datum after upgrading.
Need extract use to map datum and generally can be divided into two kinds of situations, a kind of situation is that the map demonstration is checked, be that position service terminal display interface need show this map elements, and can further check the data of this map elements according to user's operation; Another kind of situation is in guidance path computation process, and for example the user asks the calculating of location-based service terminal that the guidance path on A ground to B ground in the Enterprises of Futian District is provided, and needs to extract interior all road datas of whole Enterprises of Futian District usually and participates in calculating.
As shown in Figure 7, the embodiment of the invention provides a kind of navigational system, comprises server 71 and location-based service terminal 72:
Location-based service terminal 72, be used to obtain the more new data packets that server 71 provides, when more new data packets is the map datum generation renewal of electronic chart, the packet that server 71 is set up for the map datum after upgrading, being different from needs updated map data, independent storage update packet when needs extract map datum after upgrading, extracts the map datum after upgrading from new data packets more.
As seen from the above technical solution provided by the invention, when the map datum of electronic chart takes place to upgrade, by setting up a more new data packets for the map datum after upgrading, realize that the renewal of map datum is timely, more amount of new data is little; New data packets offers the location-based service terminal by inciting somebody to action more, so that the independent storage update packet of location-based service terminal, and during the map datum after needs extract to upgrade, the location-based service terminal is extracted the map datum after upgrading from new data packets more, being implemented in when need extracting map datum can the rapid extraction map datum, guarantees that the location-based service terminal provides location-based service accurately according to the map datum after upgrading to the user.
Concrete, map datum comprises position data, graph of a correspondence characteristic and geographical attribute data three parts of map elements space distribution.Map datum can be understood with reference to the corresponding contents of map datum in the foregoing description, does not repeat them here.
In several embodiment that the application provided, should be understood that, disclosed system, apparatus and method can realize by other mode.For example, device embodiment described above only is schematic, for example, the division of described unit, only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, the shown or coupling each other discussed or directly to be coupled or to communicate to connect can be by some interfaces, the indirect coupling of device or unit or communicate to connect can be electrically, machinery or other form.
Described unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, promptly can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select wherein some or all of unit to realize the purpose of present embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics in each unit exists, and also can be integrated in the unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, also can adopt the form of SFU software functional unit to realize.
If described integrated unit is realized with the form of SFU software functional unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding, part or all or part of of this technical scheme that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement 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 claims.
Claims (10)
1. the update method of a map datum is characterized in that, comprising:
When the map datum of electronic chart takes place to upgrade, for the map datum after upgrading is set up a more new data packets;
Described more new data packets is offered the location-based service terminal, so that described location-based service terminal is stored described more new data packets separately, and during the map datum after needs extract described renewal, described location-based service terminal is extracted the map datum after the described renewal from described more new data packets.
2. the update method of map datum according to claim 1 is characterized in that, described method also comprises:
Determine information update time of the map datum after the described renewal, with described update time information offer described location-based service terminal.
3. the updating device of a map datum is characterized in that, comprising:
Set up the unit, be used for when the map datum of electronic chart takes place to upgrade, for the map datum after upgrading is set up a more new data packets;
The unit is provided, be used for the described described more new data packets of setting up the unit of setting up is offered the location-based service terminal, so that described location-based service terminal is stored described more new data packets separately, and during the map datum after needs extract described renewal, described location-based service terminal is extracted the map datum after the described renewal from described more new data packets.
4. the updating device of map datum according to claim 3 is characterized in that, described device also comprises:
Determining unit is used for determining information update time of the map datum after the described renewal, this moment the described unit that provides, also be used for described update time information offer described location-based service terminal.
5. the update method of a map datum is characterized in that, comprising:
Obtain the more new data packets that server provides, when the map datum that described more new data packets is an electronic chart takes place to upgrade, the packet that described server is set up for the map datum after upgrading;
Being different from needs updated map data, stores described more new data packets separately;
During map datum after needs extract described renewal, from described more new data packets, extract the map datum after the described renewal.
6. the update method of map datum according to claim 5 is characterized in that, the described map datum that extracts from described more new data packets after the described renewal comprises:
According to described more new data packets, correspondence identifies the described updated map data that needs;
When carrying out that map shows or guidance path calculates when needing to extract map datum, judge whether the map datum that needs to extract has corresponding more new data packets, if then from described more new data packets, extract the map datum after upgrading.
7. the update method of map datum according to claim 5 is characterized in that, the described map datum that extracts from described more new data packets after the described renewal comprises:
When carrying out that map shows or guidance path calculates when needing to extract map datum, judge whether the map datum after upgrading in the described more new data packets belongs to the map datum that needs extract, if, the map datum after the extraction renewal from described more new data packets then.
8. a location-based service terminal is characterized in that, comprising:
Acquiring unit is used to obtain the more new data packets that server provides, when the map datum that described more new data packets is an electronic chart takes place to upgrade, and the packet that described server is set up for the map datum after upgrading;
Storage unit, being used to be different from needs updated map data, stores the more new data packets that described acquiring unit obtains separately;
Extraction unit, when being used for the map datum after needs extract described renewal, the map datum from the more new data packets of described cell stores after the described renewal of extraction.
9. location-based service terminal according to claim 8 is characterized in that, described extraction unit comprises:
Identify unit is used for according to described more new data packets, and correspondence identifies the described updated map data that needs;
First judging unit is used for judging whether the map datum that needs extraction has the more new data packets of correspondence when carrying out map demonstration or guidance path calculating needs extraction map datum;
First extraction unit, be used for when the judged result of described judging unit when being, from described more new data packets, extract the map datum after upgrading.
10. location-based service terminal according to claim 8 is characterized in that, described extraction unit comprises:
Second judging unit is used for judging whether the map datum after upgrading in the described more new data packets belongs to the map datum that needs extract when carrying out map demonstration or guidance path calculating needs extraction map datum;
Second extraction unit, be used for when the judged result of described judging unit when being, from described more new data packets, extract the map datum after upgrading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110130307XA CN102222445A (en) | 2011-05-18 | 2011-05-18 | Method, device and location-based service (LBS) terminal for updating map data |
Applications Claiming Priority (1)
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