CN101257644A - Mobile device for downloading map and method thereof - Google Patents
Mobile device for downloading map and method thereof Download PDFInfo
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- CN101257644A CN101257644A CNA2007100056172A CN200710005617A CN101257644A CN 101257644 A CN101257644 A CN 101257644A CN A2007100056172 A CNA2007100056172 A CN A2007100056172A CN 200710005617 A CN200710005617 A CN 200710005617A CN 101257644 A CN101257644 A CN 101257644A
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Abstract
The present invention provides a method for downloading map, suitable for mobile device connected to a map server. The method mainly comprises that: determining the current position of the mobile device, then determining the predetermined distance, determining the first map data and the second map data according to the predetermined distance. Specially, the first map data is corresponded totally with map data of current position in predetermined distance, the second map data is corresponded with map data of current position out of predetermined distance. Finally, the mobile device downloads map data from map server, the map data at least includes the first map data. Through the method of the invention, users can download map selectively according to demand and surroundings. The mobile device and method can reduce the use of memory, and manufacturing cost, and enables the users to operate the mobile device swimmingly.
Description
Technical field
The present invention relates to mobile device (Mobile apparatus) and method that a kind of downloading map is used.
Background technology
Be used for mobile device now, as mobile phone, PDA(Personal Digital Assistant) etc., can built-in global positioning system (GPS) subsystem, or combine with the accessory that contains the GPS subsystem by the mode of two-way connection, provide user's map to download and navigation function thus.For example, U.S. Patent number the 5th, 786, No. 789 disclosed GPS and mobile telephone units with add-on module.
Especially, when the user when driving a conveyance, this type of navigation feature can provide orientation, destination, path, environment ... wait the diagram information, assists the faster arrival of user destination.
In addition, the navigation system (Navigation system) that is used on the vehicles mainly can be divided into two classes: embedded (On-board) navigation system, this type of navigation system is that map data is stored in intrasystem memory (Memory) or data storage medium, as laser disc, memory card; And separate type (Off-board) navigation system, the map data of this type of navigation system is to be stored in the far-end map server, and downloads for navigation system by wireless transmission method.For instance, as U.S. Patent number the 6th, 381, No. the 6th, 526,284, No. 535, U.S. Patent number, and the 6th, 462, No. 676 disclosed navigation system of U.S. Patent number.
Yet, along with the fineness of map increases and the increasing of data quantity, aforesaid embedded navigation system needs a large amount of memories or data storage medium, so that the map data of user different regions to be provided, manufacturing cost is increased, or cause user's inconvenience.
In addition, aforesaid separate type navigation system also needs the map data that a large amount of memories is downloaded with storage, and, when the line underspeed between navigation system and map server, cause map information update too late easily, influence navigation feature.
Summary of the invention
Therefore, the mobile device and the method that provide a kind of downloading map to use is provided one aspect of the present invention, to solve foregoing problems.
According to a kind of method of downloading map of the of the present invention first preferred specific embodiment, it is applicable to mobile device, and this mobile device is connected to map server.This method comprises the following step:
At first, determine the current position of this mobile device.Subsequently, determine predeterminable range.Then, determine first map data and second map data according to this predeterminable range, and this first map data is fully corresponding to the map data of this current position in this predeterminable range, and this second map data is corresponding to the map data of this current position outside this predeterminable range.At last, download map data, this map data comprises this first map data at least.
According to a kind of method of downloading map of the of the present invention second preferred specific embodiment, it is applicable to mobile device, and this mobile device is connected to map server.This method comprises the following step:
At first, determine the current position of this mobile device.Subsequently, determine the system parameters of this mobile device, transmit this system parameters to this map server.Then, receive map data, this map data is downloaded from this map server, and this map data is contained distance and map resolution according to the change of this system parameter selection.At last, store this map data.
In this preferred specific embodiment, this is contained distance and is the distance with respect to this current position, and this map resolution is the size of data quantity that this map data comprises.
According to a kind of mobile device of the of the present invention the 3rd preferred specific embodiment, it is connected to map server, and comprises memory, locating module, communication module and processing module.
In addition, this locating module is used for determining current position.This communication module then receives map data from this map server, and this map data comprises first map data and second map data.This processing module is used to set predeterminable range and is stored in this memory to this first map data of major general.
In this preferred specific embodiment, this first map data is corresponding to the map data of this current position in this predeterminable range, and this second map data is corresponding to the map data of this current position outside this predeterminable range.
According to a kind of mobile device of the of the present invention the 4th preferred specific embodiment, it is connected to map server, and it comprises locating module, judge module, communication module and memory.
In addition, this locating module is used for determining current position, and this judge module is used for determining system parameters.This communication module can be sent to this system parameters this map server and receive map data from this map server, and this memory is used to store this map data.
In this preferred embodiment, this map server be according to this map data of adjustment of this system parameter selection contain the distance and the map resolution, this is contained distance and is the distance with respect to this current position, and this map resolution is the size of data quantity that this map data comprises.
The invention provides a kind of method of downloading map, it is applicable to mobile device, and described mobile device is connected to map server, and described method comprises the following step:
(A) determine the current position of described mobile device;
(B) determine predeterminable range;
(C) determine first map data and second map data according to described predeterminable range, described first map data is fully corresponding to the map data of described current position in described predeterminable range, and described second map data is corresponding to the map data of described current position outside described predeterminable range; And
(D) download map data, described map data comprises described first map data at least.
Wherein, described map data also comprises described second map data.
Described method also comprises:
(B1) determine the present speed of described mobile device;
The corresponding described present speed increase of the data quantity of wherein said second map data.
First resolution of wherein said first map data is greater than second resolution of described second map data.
Wherein said first resolution comprises main roads and secondary road, and described second resolution only comprises main roads.
Described method also comprises:
(B2) determine line speed between described mobile device and the described map server;
The corresponding described line speed increase of the data quantity of wherein said second map data.
Described method also comprises:
(B3) determine the capacity of described mobile device built-in storage;
The capacity of the corresponding described memory of the wherein said second map data data quantity increases progressively.
Described method also comprises:
(D1) determine the moving direction of described mobile device;
(D2) estimate the shift position, described shift position is positioned at the described moving direction of described current position;
(D3) determine the 3rd map data, described the 3rd map data is corresponding to the map data of described shift position in described predeterminable range; And
(D4) determine described second map data, described second map data is the poor of described the 3rd map data and the past described moving direction of described first map data.
Described method also comprises:
(D5) determine the 4th map data, described the 4th map data is described first map data and described the 3rd map data toward reverse poor of described moving direction; And
(D6) described the 4th map data of deletion.
Wherein said current position is determined according to global positioning system.
Wherein said predeterminable range is set by described mobile device, is sent to described map server after the setting.
Described method also comprises:
(B4) determine the preview distance, described preview distance is greater than described predeterminable range;
Wherein, described second map data is also corresponding to the interior map data of described current position preview apart distance.
Described method also comprises:
(B5) determine the present speed of described mobile device;
(B6) determine line speed between described mobile device and the described map server;
And
(B7) determine the capacity of described mobile device built-in storage;
Wherein, described preview distance is optionally according to described line speed, described capacity and described present speed adjustment.
First resolution of wherein said first map data is greater than second resolution of described second map data.
Described method also comprises:
(B8) determine line speed between described mobile device and the described map server;
The corresponding described line speed increase of wherein said second resolution.
Described method also comprises:
(B9) determine the capacity of described mobile device built-in storage;
The capacity of the corresponding described memory of wherein said second resolution increases progressively.
The invention provides a kind of method of downloading map, it is applicable to mobile device, and described mobile device is connected to map server, and described method comprises the following step:
(A) determine the current position of described mobile device;
(B) determine the system parameters of described mobile device, described system parameters is sent to described map server;
(C) receive map data, described map data is downloaded from described map server and described map data and is contained distance and map resolution according to the change of described system parameter selection; And
(D) store described map data.
The wherein said distance that contains is the distance with respect to described current position, and described map resolution is the size of data quantity that described map data comprises.
Described method also comprises:
(B1) determine line speed between described mobile device and the described map server;
(B2) determine the capacity of described mobile device built-in storage;
(B3) determine predeterminable range;
(B4) determine the present speed of described mobile device; And
(B5) optionally setting described line speed, described capacity, described predeterminable range and described present speed is described system parameters.
Described method also comprises:
(C1) set the described distance that contains and be definite value; And
(C2) raising of the described system parameter selection of foundation and the described map resolution of reduction.
Described method also comprises:
(C3) setting described map resolution is definite value; And
(C4) increase of the described system parameter selection of foundation and the described distance that contains of minimizing.
The invention provides a kind of mobile device, be connected to map server, described mobile device comprises:
Memory;
Locating module is in order to determine current position;
Communication module receives map data from described map server, and described map data comprises first map data and second map data; And
Processing module is in order to set predeterminable range and described at least first map data is stored in described memory;
Wherein, described first map data is corresponding to the map data of described current position in described predeterminable range, and described second map data is corresponding to the map data of described current position outside described predeterminable range.
Described mobile device also comprises:
Display unit is in order to show the map data in the described memory.
Wherein said locating module in the beginning of unit interval when finishing, determine first current position and second current position, described processing module is determined the present speed of described mobile device according to described first current position, second current position and described unit interval, the corresponding described present speed increase of the data quantity of wherein said second map data.
First resolution of wherein said first map data is greater than second resolution of described second map data.
Wherein said first resolution comprises main roads and secondary road, and described second resolution only comprises main roads.
Wherein said communication module and described map server transmit described map data with line speed, the corresponding described line speed increase of the data quantity of described second map data.
Wherein said memory also comprises:
Reserved block is in order to store described map data;
The capacity of the corresponding described reserved block of the data quantity of wherein said second map data increases progressively.
Wherein said locating module in the beginning of unit interval when finishing, determine first current position and second current position, described processing module is according to described first current position, described second current position and described unit interval are determined the moving direction of described mobile device, described processing module is estimated the shift position, described shift position is positioned at the described moving direction of described current position, and described map server is determined the 3rd map data, described the 3rd map data is corresponding to the map data of described shift position in described predeterminable range, and described map server is determined described second map data, and described second map data is the poor of described the 3rd map data and the past described moving direction of described first map data.
Wherein said processing module is determined the 4th map data, and described the 4th map data is described first map data and described the 3rd map data toward reverse poor of described moving direction, and described processing module is deleted described the 4th map data from described memory.
Wherein said current position is determined according to global positioning system.
Wherein said processing module is determined the preview distance, and described preview distance is greater than described predeterminable range, and described second map data is also corresponding to the interior map data of described current position preview apart distance.
First resolution of wherein said first map data is greater than second resolution of described second map data.
Wherein said communication module and described map server transmit described map data with line speed, the corresponding described line speed increase of described second resolution.
Described memory also comprises:
Reserved block is in order to store described map data;
The capacity of the corresponding described reserved block of wherein said second resolution increases progressively.
The invention provides a kind of mobile device, be connected to map server, described mobile device comprises:
Locating module is in order to determine current position;
Judge module is in order to determine system parameters;
Communication module is sent to described system parameters described map server and receives map data from described map server;
Memory is in order to store described map data; And
Processing module is in order to set predeterminable range;
Wherein, described map server is contained distance and map resolution according to the described map data of adjustment of described system parameter selection, the described distance that contains is the distance with respect to described current position, and described map resolution is the size of data quantity that described map data comprises.
Wherein, described communication module and described map server transmit described map data with line speed and described predeterminable range is stored in the described memory, and wherein said memory also comprises:
Reserved block is in order to store described map data;
Wherein said locating module in the beginning of unit interval when finishing, determine first current position and second current position, described processing module is determined the present speed of described mobile device according to described first current position, second current position and described unit interval;
It is described system parameters that wherein said judge module is optionally set the capacity of described line speed, described reserved block, described predeterminable range and described present speed.
The described distance that contains of wherein said map server setting is definite value, and the increase of the described system parameter selection of foundation and the described map resolution of minimizing.
It is definite value that wherein said map server is set described map resolution, and the increase of the described system parameter selection of foundation and the described distance that contains of minimizing.
Mobile device that downloading map according to the present invention is used and method can be passed through at the environment of this mobile device and the detecting and the setting of multiple systems parameter, to adjust the data quantity of map data, therefore, can reduce the use of memory, reduce manufacturing cost, also can allow the user operate this mobile device more swimmingly.
Can be further understood by following execution mode detailed description of the present invention and accompanying drawing about the advantages and spirit of the present invention.
Description of drawings
Figure 1A shows a kind of method flow diagram of downloading map according to a preferred specific embodiment of the present invention.
Figure 1B shows the schematic diagram of the map of downloading according to the method for Figure 1A.
Fig. 2 A shows a kind of method flow diagram of downloading map according to a specific embodiment of the present invention.
Fig. 2 B shows the schematic diagram of the map of downloading according to the method for Fig. 2 A.
Fig. 3 A shows a kind of method flow diagram of downloading map according to a specific embodiment of the present invention.
Fig. 3 B shows the schematic diagram of the map of downloading according to the method for Fig. 3 A.
Fig. 4 A shows a kind of method flow diagram of downloading map according to a preferred specific embodiment of the present invention.
Fig. 4 B shows a kind of method flow diagram of downloading map according to a specific embodiment of the present invention.
Fig. 4 C shows a kind of method flow diagram of downloading map according to a specific embodiment of the present invention.
Fig. 4 D shows a kind of method flow diagram of downloading map according to a specific embodiment of the present invention.
Fig. 5 shows the functional block diagram of the mobile device of a specific embodiment of the present invention.
Embodiment
The invention provides mobile device and method that a kind of downloading map is used.Disclose as follows according to an advantageous embodiment of the invention.
See also Figure 1A and Figure 1B, Figure 1A shows a kind of method flow diagram of downloading map according to a preferred specific embodiment of the present invention; Figure 1B shows the schematic diagram of the map of downloading according to the method for Figure 1A.In this preferred specific embodiment, this method is applicable to mobile device, and this mobile device is connected to map server; This map server can be connected with mobile device or be connected in wired mode with mobile device for the wireless mode of passing through that connects the mobile network.This method comprises the following step:
Step S51 determines the current position A of this mobile device.In actual applications, this current position A can by global positioning system (Global Positioning System, GPS) or the three-point fix function of base station determine the current position A of mobile device; The locate mode of mobile device has had multiple technologies to realize, does not repeat them here.
Step S53 determines predeterminable range M.In actual applications, this predeterminable range M can be set by this mobile device, and this predeterminable range M is sent to this map server or by predeterminable range of map server inner setting, this predeterminable range can be preestablished by phone, fax, network or other man-computer interface by the user.
Step S55 determines first map data 41 and second map data 42 according to this predeterminable range M.And this first map data 41 is fully corresponding to the map data of current position A in this predeterminable range M, and this second map data 42 is corresponding to the map data of this current position A outside this predeterminable range M.
Step S57, download map data, this map data comprises this first map data 41 at least, that is first map data 41 with respect to mobile device apart from the M, the user is because of navigation or look for the address higher for the information interest of this part, so this map data comprises this first map data 41 at least.After having transmitted first map data 41, this map data can further comprise this second map data 42.
In the practical application, first resolution of first map data is greater than second resolution of second map data.For instance, first resolution comprises main roads and secondary road, second resolution only comprises main roads, the present invention mainly consider the user to arround near the information demand higher so need more detailed with interior information at distance M, for example main roads, secondary road, house number, hotel owner's information, place name etc., and for the information beyond the distance M, only can be less as the estimation of distance or the prediction in path so information, for example only comprise main roads, place name etc.
In one embodiment, when the map data of downloading comprised aforesaid second map data 42, the method according to this invention was further determined the present translational speed of mobile device, and aforesaid second map data, 42 data quantities are to speed increase at present.In other words, fast more when the present speed of mobile device, the user surpasses bigger apart from the chance beyond the M, and the user wishes that second map data of seeing 42 should contain extensivelyr, and therefore the data quantity of second map data 42 is just big more; Setpoint distance M=500 meter for example, walking (speed is less than 4km/hr) for the user, or fix a point when motionless, the information that second map data 42 is contained in 1000 meters is enough for the user, but when driving (speed is greater than 60km/hr) as if the user, the user may need the information in 2 kilometers, and this moment, second map data 42 was apart from the information in 500 meters to 2 kilometers of the users.
In one embodiment, when this map data comprises aforesaid second map data 42, the method according to this invention is further determined the line speed between this mobile device and this map server, and these second map data, 42 data quantities are to should the line speed increase; When for example line speed was 100kbps, 42 of second map datas comprised main roads, but when line speed was 300kbps, second map data 42 also can comprise place name and sight spot information except that comprising main roads; Another example, when line speed was 100kbps, second map data 42 comprised the information in 500 to 1000 meters of mobile devices, but when line speed is 300kbps, and second map data 42 can comprise the information in 500 to 3000 meters of mobile devices.
In one embodiment, when this map data comprised aforesaid second map data 42, the method according to this invention was further determined the capacity of this mobile device built-in storage, and these second map data, 42 data quantities increase progressively capacity that should memory.In other words, when this memory span is big more, the data quantity of this second map data 42 is just big more.
See also Fig. 2 A and Fig. 2 B, Fig. 2 A is for another determines the method for first map data 41 and second map data 44 in the step S55 among Figure 1A; Fig. 2 B shows the schematic diagram of the map of downloading according to the method for Fig. 2 A.Mobile device according to the present invention is positioned at current position A and definite predeterminable range M.And, determine in the step S55 in Figure 1A that the method for second map data 44 can further comprise the following steps:
Steps A 551 is determined the moving direction X of this mobile device, and this moving direction X can change according to the coordinate of last period of mobile device and calculate.
Steps A 552 is estimated shift position B, and this shift position B is positioned at this moving direction X of this current position A, and this shift position B can be preset value or increases and increase with respect to the mobile device translational speed.
Steps A 553 determines that the 3rd map data 43, the three map datas 43 are corresponding to the map data of this shift position B in this predeterminable range M.
Steps A 554 determines that second map data, 44, the second map datas 44 are the poor of the 3rd map data 43 and first map data, 41 past moving direction X, and difference herein is that the 3rd map data 43 is more than the part of first map data 41 toward moving direction X.
Above-mentioned steps A551 to steps A 554 corresponding to the method for determining first map data 41 and second map data 44 in the step S55 among Figure 1A, when this mobile device displayed map information, can carry out following steps A555 again to steps A 556:
Steps A 555, determine the 4th map data 45, the 4th map data 45 is the reciprocal poor of first map data 41 and the 3rd map data 43 past this moving direction X, and difference herein is toward the part of moving direction X opposite direction first map data 41 more than the 3rd map data 43.
Steps A 556 is deleted the 4th map data 45.
Steps A 557, when this mobile device displayed map information, (1) shows first map data 41, and (2) show second map data 44, and (3) deletion shows the 4th map data 45; Wherein (2) can be exchanged with the step of (3).
See also Fig. 3 A and Fig. 3 B, interior another of step S55 that Fig. 3 A shows among Figure 1A determined the method for first map data 41 and second map data 46; Fig. 3 B shows the schematic diagram of the map of downloading according to the method for Fig. 3 A.Mobile device according to the present invention is positioned at current position A and definite predeterminable range M, and the step S55 among Figure 1A can further comprise the following steps:
Step B551 determines the present speed of this mobile device.
Step B552 determines the line speed between this mobile device and this map server.
Step B553 determines the capacity of this mobile device built-in storage.
Step B554, determine that preview is apart from N, this preview apart from N greater than this predeterminable range M, and this second map data 46 also fully corresponding to this current position A outside the predeterminable range M with preview apart from the map data in the N, preview can be preset value or adjusts size according to the capacity of aforesaid line speed, memory or the present speed of mobile device apart from N.
For example, when line speed is fast more, the capacity of memory is big more or the present speed of this mobile device when fast more, this preview can increase according to circumstances apart from N, carries out optimized adjustment so that correspondence is required.
When aforesaid this first map data has first resolution and second map data has second resolution, and first resolution is greater than second resolution, when preview distance was fixed value, second resolution can increase progressively according to the capacity of the memory of line speed in the step B552 or step B553; Other second resolution also can be according to the present decrease of speed of step B551.
See also Fig. 4 A, Fig. 4 A shows a kind of method flow diagram of downloading map according to a preferred specific embodiment of the present invention.In this preferred specific embodiment, this method is applicable to mobile device, and this mobile device is connected to map server.Shown in Fig. 4 A, this method comprises the following step:
Step S71 determines the current position of this mobile device.
Step S73, determine the system parameters of mobile device, and system parameters is sent to map server, system parameters can be single one or more and is sent to map server simultaneously, and system parameters can be the line speed between mobile device and map server, the capacity of mobile device built-in storage, the present speed of mobile device or the predeterminable range of being imported by mobile device.
Step S75 receives map data, this map data download from this map server and map data can be according to the change map data of system parameter selection contain distance and map resolution.
Step S77 stores this map data.The distance that contains of this map data is the distance with respect to this current position; This map resolution is the size of data quantity that this map data comprises.
Further see also Fig. 4 B, Fig. 4 B shows a kind of method flow diagram of downloading map according to a specific embodiment of the present invention.In this specific embodiment, the step S73 shown in Fig. 4 A further comprises the following step:
Step S731 determines the line speed between this mobile device and this map server.
Step S732 determines the capacity of this mobile device built-in storage.
Step S733 determines predeterminable range.
Step S734 determines the present speed of this mobile device.
Step S735, optionally setting this line speed, this capacity, this predeterminable range and this present speed is this system parameters.
Further see also Fig. 4 C, Fig. 4 C shows a kind of method flow diagram of downloading map according to a specific embodiment of the present invention.In this specific embodiment, the step S75 shown in Fig. 4 A further comprises the following step:
Step S751 sets this and contains apart from being definite value.
Step S753 is according to the raising of this system parameter selection or reduce this map resolution.For example, when system parameters was this line speed and this capacity, if this line speed is fast more, this capacity is big more, then this map resolution can be by the raising of selectivity.
Further see also Fig. 4 D, Fig. 4 D shows a kind of method flow diagram of downloading map according to a specific embodiment of the present invention.In this specific embodiment, the step S75 shown in Fig. 4 A further comprises the following step:
Step S755, setting this map resolution is definite value.
Step S757 is according to the increase of this system parameter selection or reduce this and contain distance.For example, when system parameters is this line speed and this capacity, if this line speed fast more, this capacity is big more, then this contain the distance can be by the increase of selectivity.
See also Fig. 5, Fig. 5 shows the functional block diagram of the mobile device of a specific embodiment of the present invention.As shown in Figure 5, this mobile device 3 is wirelessly connected to map server 4 in this embodiment, and this mobile device 3 comprises locating module (Positioningmodule) 31, display unit 32, judge module 33, user's input interface 34, communication module (Communication module) 35, memory 37 and processing module (Processing module) 39.
In addition, locating module 31 is as GPS, in order to determine current position.Judge module 33 is in order to determine system parameters.Communication module 35 is sent to system parameters and current position map server and receives map data from map server, and map data can comprise first map data and second map data.37 of memories are in order to store this map data.The map data of this display unit 32 in order to show that this memory 37 is stored.These user's input interface 34 usefulness are operated this mobile device 3 for the user.39 of processing modules are in order to set predeterminable range and this predeterminable range is stored in this memory 37.
Note that this first map data corresponding to the map data of this current position in this predeterminable range, this second map data is corresponding to the map data of this current position outside this predeterminable range.
Please note, in this specific embodiment, this map server 4 is according to this system parameters, and that optionally adjusts this map data contains distance and map resolution, this is contained distance and is the distance with respect to this current position, and this map resolution is the size of data quantity that this map data comprises.
In addition, in actual applications, this locating module 31 when finishing, determine first current position and second current position, and this processing module 39 is determined the moving direction of this mobile device according to this first current position, this second current position and this unit interval in the beginning of unit interval.In addition, this processing module 39 is further estimated the shift position, and this shift position is positioned at this moving direction of this current position.And, this map server 4 is determined the 3rd map data, the 3rd map data is corresponding to the map data of this shift position in this predeterminable range, and this map server 4 is determined this second map data, and this second map data is the poor of the 3rd map data and past this moving direction of this first map data.In addition, this processing module 39 can be determined the 4th map data, and what the 4th map data was this first map data and the 3rd map data toward this moving direction is reverse poor, and this processing module 39 can be from this memory 37 deletions the 4th map data.
In addition, this locating module 31 in the beginning of unit interval when finishing, determine first current position and second current position, 39 of this processing modules are determined the present speed of this mobile device 3 according to this first current position, second current position and this unit interval, and the data quantity of this second map data is to speed increase at present.In addition, optionally to set the capacity, this predeterminable range of this line speed, this reserved block be this system parameters with this present speed to this judge module 33.
In actual applications, this communication module 35 transmits this map data with this map server 4 with line speed, and the data quantity of this second map data is to should the line speed increase.Further, this memory 37 also comprises reserved block in order to storing this map data, and the data quantity of this second map data increases progressively capacity that should reserved block.
In actual applications, this processing module 39 can be determined the preview distance, and this preview distance is greater than this predeterminable range, and this second map data is also corresponding to the interior map data of this current position preview apart distance.
In actual applications, this map server 4 can be set this and contains distance for definite value, and according to the increase of this system parameter selection with reduce this map resolution.For instance, when system parameters was this line speed and this capacity, if this line speed capacity fast more, this reserved block is big more, then this map resolution can be by the raising of selectivity.
In actual applications, it is definite value that this map server 4 can be set this map resolution, and according to the increase of this system parameter selection with reduce this and contain distance.For instance, when system parameters is this line speed and this capacity, if this line speed fast more, this capacity is big more, then this contain the distance can be by the increase of selectivity.
In actual applications, this memory 37 can be flash memory (Flash memory), static RAM (Static random access memory, SRAM), dynamic random access memory (Dynamic random access memory, DRAM), Synchronous Dynamic Random Access Memory (Synchronous dynamic random access memory, SDRAM), arrange in pairs or groups mutually or by above-mentioned memory and to form.In actual applications, first resolution of aforesaid this first map data is greater than second resolution of this second map data.For instance, this first resolution comprises main roads and secondary road, and this second resolution only comprises main roads.
Apparently, mobile device that downloading map according to the present invention is used and method can be passed through at the environment of this mobile device and the detecting and the setting of multiple systems parameter, to adjust the data quantity of map data, therefore, can reduce the use of memory, reduce manufacturing cost, also can allow the user operate this mobile device more swimmingly.
By the detailed description of above preferred specific embodiment, be to wish more clearly to describe feature of the present invention and spirit, and be not to come scope of the present invention is limited with above-mentioned disclosed preferred specific embodiment.On the contrary, its objective is that hope can and be equal in the scope of replacing the claim that is encompassed in institute of the present invention desire application various changes.
The main element symbol description
S51～S57, A551～A557, B551～B554, S71～S77, S731～S735, S751～S757: process step
A: current position M: predeterminable range
41: the first map datas 42,44,46: the second map datas
X: moving direction B: shift position
45: the four map datas of 43: the three map datas
N: preview distance 3: mobile device
37: memory 31: locating module
35: communication module 39: processing module
32: display unit 4: map server
33: judge module 34: user's input interface
Claims (10)
1. method of downloading map, it is applicable to mobile device, and described mobile device is connected to map server, and described method comprises the following step:
(A) determine the current position of described mobile device;
(B) determine predeterminable range;
(C) determine first map data and second map data according to described predeterminable range, described first map data is fully corresponding to the map data of described current position in described predeterminable range, and described second map data is corresponding to the map data of described current position outside described predeterminable range; And
(D) download map data, described map data comprises described first map data at least.
2. method according to claim 1, wherein said map data also comprise described second map data.
3. method according to claim 2, described method also comprises:
(B1) determine the present speed of described mobile device;
The corresponding described present speed increase of the data quantity of wherein said second map data.
4. method according to claim 2, first resolution of wherein said first map data is greater than second resolution of described second map data.
5. method according to claim 4, wherein said first resolution comprises main roads and secondary road, described second resolution only comprises main roads.
6. method according to claim 2, described method also comprises:
(B2) determine line speed between described mobile device and the described map server;
The corresponding described line speed increase of the data quantity of wherein said second map data.
7. method according to claim 2, described method also comprises:
(B3) determine the capacity of described mobile device built-in storage;
The capacity of the corresponding described memory of the data quantity of wherein said second map data increases progressively.
8. method of downloading map, it is applicable to mobile device, and described mobile device is connected to map server, and described method comprises the following step:
(A) determine the current position of described mobile device;
(B) determine the system parameters of described mobile device, described system parameters is sent to described map server;
(C) receive map data, described map data is downloaded from described map server and described map data and is contained distance and map resolution according to the change of described system parameter selection; And
(D) store described map data.
The wherein said distance that contains is the distance with respect to described current position, and described map resolution is the size of data quantity that described map data comprises.
9. a mobile device is connected to map server, and described mobile device comprises:
Memory;
Locating module is in order to determine current position;
Communication module receives map data from described map server, and described map data comprises first map data and second map data; And
Processing module is in order to set predeterminable range and described at least first map data is stored in described memory;
Wherein, described first map data is corresponding to the map data of described current position in described predeterminable range, and described second map data is corresponding to the map data of described current position outside described predeterminable range.
10. a mobile device is connected to map server, and described mobile device comprises:
Locating module is in order to determine current position;
Judge module is in order to determine system parameters;
Communication module is sent to described system parameters described map server and receives map data from described map server;
Memory is in order to store described map data; And
Processing module is in order to set predeterminable range;
Wherein, described map server is contained distance and map resolution according to the described map data of adjustment of described system parameter selection, the described distance that contains is the distance with respect to described current position, and described map resolution is the size of data quantity that described map data comprises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100056172A CN101257644A (en) | 2007-03-01 | 2007-03-01 | Mobile device for downloading map and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100056172A CN101257644A (en) | 2007-03-01 | 2007-03-01 | Mobile device for downloading map and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101257644A true CN101257644A (en) | 2008-09-03 |
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ID=39892055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100056172A Pending CN101257644A (en) | 2007-03-01 | 2007-03-01 | Mobile device for downloading map and method thereof |
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| Country | Link |
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| CN (1) | CN101257644A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813489A (en) * | 2009-02-20 | 2010-08-25 | 环达电脑(上海)有限公司 | Route planning device and route planning method |
| CN113335271A (en) * | 2021-08-04 | 2021-09-03 | 智己汽车科技有限公司 | Method and device for starting unmanned parking function based on vehicle end |
-
2007
- 2007-03-01 CN CNA2007100056172A patent/CN101257644A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813489A (en) * | 2009-02-20 | 2010-08-25 | 环达电脑(上海)有限公司 | Route planning device and route planning method |
| CN113335271A (en) * | 2021-08-04 | 2021-09-03 | 智己汽车科技有限公司 | Method and device for starting unmanned parking function based on vehicle end |
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Open date: 20080903 |