CN103971587A - Gradient map for navigation, gradient map generation method and navigation device - Google Patents

Abstract

A gradient map for navigation is converted from an original map which presents most major road information and most secondary road information. The gradient map comprises a reservation block and an adjustment block, the reservation block presents part of major road information and part of secondary road information in the original map, the adjustment block surrounds the reservation block and presents the major road information, unpresented in the reservation block, in the original map, a map scale of the adjustment block is larger than that of the reservation block, and at least one major road in the reservation block is connected with a corresponding major road in the adjustment block. Since the reservation block presents the major road information and the secondary road information at the same time, the adjustment block with large map scale only presents the major road information, and major roads at the junction of the reservation block and the adjustment block are jointed, favorable map information linkup performance is realized.

Description

Navigation gradually layer map, its production method and guider

[technical field]

The invention relates to a kind of map, refer to especially a kind of for navigate and map present simultaneously various level cartographic information and road information gradually layer map.

[background technology]

General maps chi and present various level cartographic information and road information to scale.In the situation that engineer's scale is larger, the body of a map or chart that map presents is wider, but its body of a map or chart is more not exhaustive, for example, only present main roads and do not present the secondary road information such as street and lane, lane.And in the situation that engineer's scale is less, the body of a map or chart that map presents, compared with little and cartographic information is comparatively detailed, also can demonstrate street and lane and do except main roads.But when user watches this kind of known map, must frequently switch the engineer's scale of map to obtain required cartographic information, operating performance is comparatively loaded down with trivial details.

Therefore, No. 201044256 application case of TaiWan, China patent publication No. provides a kind of numerical map that can magnifying local region.Specifically, when this numerical digit map manifests the original map that an engineer's scale is large and body of a map or chart is wider, user can select to need the region of amplifying and the local enlarged map that shows this region voluntarily, to obtain more detailed cartographic information.But the local enlarged map of this kind of numerical map is to present in the mode of pop-up window, this part enlarged map can hide a part for original map, the region being exaggerated in the not corresponding original map of its display position, and the road that local enlarged map shows cannot be connected the road showing in original map, and the intuitive that road is watched in impact.If use this kind of numerical map at guider, because the connecting of its cartographic information and road information is poor, can affect the smoothness that car owner drives.

[summary of the invention]

Therefore, object of the present invention, is providing a kind of gradually layer map of the use of navigating.This gradually a layer map show wide body of a map or chart, and provide detailed cartographic information at regional area, and there is the connecting of good road information.

So the present invention navigates and uses gradually layer map, conversion is from an original map, and this original map presents most main roads information and most secondary road information.This gradually layer a map comprise a reservation block and one adjust block.This reservation block presents part main roads information and the part secondary road information of this original map.This adjustment block around wherein, and presents this reservation block in the main roads information that is different from this reservation block in this original map, and engineer's scale is greater than this reservation block.Wherein, at least one main roads of this reservation block are connected in main roads corresponding in this adjustment block.

Preferably, this gradually body of a map or chart of presenting of layer map be equal to this original map and size is less than this original map, in this gradually in layer map the engineer's scale of this reservation block be equal to this original map, and the engineer's scale of this adjustment block is greater than this original map.

More preferably, this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein, and the engineer's scale of this sub-block is for increasing progressively from inside to outside.

Preferably, this reservation block is positioned at this gradually symcenter of layer map, and this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein.

Another object of the present invention, is providing the gradually production method of layer map of aforementioned navigation.

So the present invention navigates with the production method of layer map gradually, comprises following steps: (A) receive an original map and in order to adjust the adjustment parameter information of engineer's scale of this original map; (B) according to this adjustment parameter information by this original map be converted to one gradually layer map, this gradually layer map comprise a reservation block and by this reservation block around adjustment block wherein, and the engineer's scale of this reservation block is less than the engineer's scale of this adjustment block; And (C) show this gradually layer map.

Preferably, this gradually body of a map or chart of presenting of layer map be equal to this original map and size is less than this original map, in this gradually in layer map the engineer's scale of this reservation block be equal to this original map, and the engineer's scale of this adjustment block is greater than this original map.

Preferably, this original map presents most main roads information and most secondary road information, this reservation block presents part main roads information and the part secondary road information of this original map, this adjustment block presents the main roads information that does not see this reservation block in this original map, and at least one main roads in this adjustment block are connected in main roads corresponding in this reservation block.

Preferably, this original map presents most main roads information and most secondary road information, and in this main roads information of this original map of step (B) and this secondary road information, corresponding conversion is to this reservation block and this adjustment block respectively, and this production method also comprises a step (D) between this step (B) and this step (C): delete this gradually secondary road information in the adjustment block of layer map.

Preferably, in step (B) by this original map be converted to this gradually layer map comprise following sub-step: (B1) bends this original map and form the original map of a deflection, and the curvature of this original map bending is determined by this adjustment parameter; (B2) original map of this deflection is projected to a virtual plane, and makes this virtual plane present this gradually layer map.

Preferably, this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein, the quantity of this sub-block is to adjusting parameter, and the engineer's scale of this sub-block increases progressively from inside to outside according to this adjustment parameter.

Preferably, the engineer's scale of this sub-block is also according to the size of this original map and the size of this adjustment block and increased progressively outward by interior.

Preferably, this reservation block is positioned at this gradually symcenter of layer map, and this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein.

A further object of the present invention, is providing a kind of guider of aforementioned gradually layer map with execution navigation feature that use.

So guider of the present invention, comprises a processing module, a storage module, a wireless module and a display module.

This storage module is electrically connected on this processing module and stores many original map information.This wireless module is electrically connected on this processing module, and receives a wireless location signal and transfer to this processing module.This display module is electrically connected on this processing module.

Wherein, this processing module receives one and adjusts parameter information, and an original map is converted to the gradually layer map of a correspondence, and by this gradually a layer map be shown in this display module, and adjust this map location that gradually layer map shows according to this wireless location signal; This gradually a layer map comprise a reservation block and an adjustment block around this reservation block, and the engineer's scale of this reservation block is less than the engineer's scale of this adjustment block.

Preferably, this gradually body of a map or chart of presenting of layer map be equal to this original map and size is less than this original map, in this gradually in layer map the engineer's scale of this reservation block be equal to this original map, and the engineer's scale of this adjustment block is greater than this original map.

Preferably, this original map presents most main roads information and most secondary road information, this reservation block presents part main roads information and the part secondary road information of this original map, this adjustment block presents the main roads information that is different from this reservation block in this original map, and at least one main roads in this adjustment block are connected in main roads corresponding in this reservation block.

Preferably, this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein, the quantity of this sub-block is to adjusting parameter, and the engineer's scale of this sub-block increases progressively from inside to outside according to this adjustment parameter.

Preferably, the engineer's scale of this sub-block is also according to the size of this original map and the size of this adjustment block and increased progressively outward by interior.

Preferably, this reservation block is positioned at this gradually symcenter of layer map, and this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein.

Effect of the present invention is:

Gradually layer map comprises reservation block and the engineer's scale that engineer's scale is equal to original map and is greater than the adjustment block of original map, and can present the body of a map or chart that is equal to original map with less display size.

Gradually the reservation block of layer map shows main roads information and secondary road information, and detailed cartographic information is provided.Meanwhile, adjust block and show the main roads information being connected in retaining block, and present wide body of a map or chart.Therefore, retain block and present good connecting and intuitive with adjustment block, observe course and be convenient to car owner in the time of navigation.

[brief description of the drawings]

Fig. 1 is a schematic diagram, illustrates that the present invention navigates with gradually the first preferred embodiment of layer map;

Fig. 2 produces this gradually schematic diagram of layer map;

Fig. 3 produces this gradually process flow diagram of layer map;

Fig. 4 is a calcspar, illustrates that one shows this gradually guider of layer map;

Fig. 5 is a schematic diagram, illustrates that the present invention navigates with gradually the second preferred embodiment of layer map; And

Fig. 6 is a schematic diagram, and this gradually producing method of layer map is described in the second embodiment.

[embodiment]

About addressing other technology contents, feature and effect before the present invention, in the following detailed description coordinating with reference to two graphic preferred embodiments, can clearly present.

Before the present invention is described in detail, be noted that in the following description content, similarly assembly is to represent with identical numbering.

Consult Fig. 1 to Fig. 3, for the present invention navigates with gradually the first preferred embodiment of layer ground Fig. 1.Gradually layer ground Fig. 1 changes from an original map 2, and this original map 2 comprises most main roads information and most secondary road information, and gradually layer ground Fig. 1 presents main roads information and the secondary road information after conversion, for user's reference.In addition, gradually layer ground Fig. 1 can apply to as on the guider 3 of Fig. 4, but not as limit, also can apply to the electronic installation such as mobile phone or computing machine.

Gradually layer ground Fig. 1 comprise a reservation block 11 (as the rectangular area defining with dotted line in Fig. 1) with one by retain block 11 around adjustment block 12 wherein (as beyond dotted line in Fig. 1 to solid line housing with interior region).Retaining block 11 is mainly to present user's current location and near road information thereof, in other words, retain part main roads 13 and part secondary road 14 that block 11 only can present original map 2, and the size (the road information scope that can present) of reservation block 11 is a default value.Adjust block 12 and present by original map 2 and convert and be connected in retaining the main roads 13 of block 11, and its engineer's scale is greater than and retains block 11.Certainly, the size, position and the engineer's scale that retain block 11 or adjustment block 12 can change along with different demands, are not limited with the present embodiment, are greater than as long as adjust the engineer's scale of block 12 engineer's scale that retains block 11.

In the present embodiment, retain block 11 and be positioned at the gradually symcenter of layer ground Fig. 1, adjust block 12 and can controlledly present and multiplely will retain block 11 from inside to outside around sub-block 121 (as Fig. 2) wherein, and the engineer's scale of this sub-block 121 increases progressively from inside to outside.Can be shown in the gradually optional position of layer ground Fig. 1 but retain block 11, and adjust block 12 and also can not divide into multiple sub-block 121 as Fig. 1, this set-up mode for can optionally adjusting, is not limited to the content that the present embodiment discloses.

The gradually production method of layer ground Fig. 1 will be described in detail below.

Step S1 and step S2: receive one and adjust parameter information and original map 2 information.Adjust parameter information and comprise that one adjusts the adjustment parameter of the engineer's scale of block 12 for adjusting gradually layer ground Fig. 1, and the number of blocks parameter of determinant block 121 quantity.

Step S3: original map 2 is converted to a layer ground Fig. 1 gradually according to adjusting parameter information.

In the present embodiment, the engineer's scale of reservation block 11 can be preset as consistent with original map 2, need not change especially therefore retain block 11, only needs directly to show the segment map information (coordinating the size that retains block 11) of original map 2.Adjust 12 of blocks and converted by original map 2, and its engineer's scale is greater than and retains block 11, and comprise the sub-block 121 that multiple engineer's scales are not quite similar.Therefore,, detailed description being adjusted to block 12 is how to change and to present according to adjustment parameter information.

Consult Fig. 2, first the meaning of each conventional letter is described.In subsequent paragraph, parameter, X are adjusted in m representative _irepresent in original map 2 that each is for being converted to the region of sub-block 121 in the size of directions X, and represent all X _isummation.Wherein, adjust parameter m with to set via user, and each X _ithe result via gained after calculating:

$\stackrel{\‾}{X}=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{X}_i=X_1+X_2+X_3+\·\·\·+X_m$

For instance, user specifies original map 2 in the size of directions X and incites somebody to action length setting be 13 centimeters, and the engineer's scale of this original map 2 is 2 kilometers/centimeter.Therefore, the body of a map or chart of corresponding 26 kilometers.In addition, because user sets, adjustment block 12 is divided into two sub-block 121, the numerical value of therefore adjusting parameter m is 2.

On the other hand, the present embodiment is with X _iin ' representative adjustment block 12, each sub-block 121 is in the size of directions X, X _i' be by X corresponding in original map 2 _iconvert, the body of a map or chart that both are corresponding same, and more away from the sub-block 121 that retains block 11, its i value increases progressively thereupon.In addition all X, _i' summation with representative.In the present embodiment, predefined fixed numbers, but also can be designed as by user and set, be not limited to default fixed numbers:

$\stackrel{\‾}{X^{\′}}=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{X_i}^{\′}={X_1}^{\′}+{X_2}^{\′}+{X_3}^{\′}+\·\·\·+{X_m}^{\′}$

For instance, herein be preset as 4 centimeters, and to adjust block 12 be to divide sub-block 121 with equal length in directions X, therefore each sub-block 121 is in all identical (represent with C, C equals 2 centimeters) of length dimension of directions X herein:

$C=X_1^{\′}=X_2^{\′}=X_3^{\′}=\·\·\·=X_m^{\′}=\frac{\stackrel{\‾}{X^{\′}}}{m}$

In addition, because this step will be gradually layer ground Fig. 1, the therefore X that size is less by larger-size original map 2 corresponding conversion _iwith corresponding X _i' between exist a conversion proportion relation (with S _irepresent), be defined as follows:

$S_i=\frac{X_i}{X_i^{\′}}=1+P\×\frac{i}{m}$

Wherein, P represents a zooming parameter, sets via adjustment parameter m, user and preset it and the numerical value of calculating gained, its computing formula will illustrate in subsequent paragraph.From above formula, the conversion proportion S of each sub-block 121 _ialong with increase away from retaining block 11 thereupon, and the conversion proportion S of adjacent subarea piece 121 _idifference be P/m.

Next the account form of zooming parameter P is described.According to definition:

$\stackrel{\‾}{X}=\underset{i=1}{\overset{m}{\mathrm{\Σ}}}{X}_i$

$=X_1+X_2+X_3+\·\·\·+X_m$

$=S_1{X}_1^{\′}+S_2{X}_2^{\′}+S_3{X}_3^{\′}+\·\·\·+S_m{X}_m^{\′}$

$=S_{1}C+S_{2}C+S_{3}C+\·\·\·+S_{m}C$

$=C(S_1+S_2+S_3+\·\·\·+S_m)$

$=C[(1+P\×\frac{1}{m})+(1+P\×\frac{2}{m})+(1+P\×\frac{3}{m})+\·\·\·+(1+P\×\frac{m}{m})]$

$=C[m+P\×(\frac{1}{m}+\frac{2}{m}+\frac{3}{m}+\·\·\·+\frac{m}{m})]$

$=C[m+P\×\frac{(1+m)}{2}]$

$=\frac{\stackrel{\‾}{X^{\′}}}{m}\×[m+P\×\frac{(1+m)}{2}]$

According to above formula, zooming parameter P can be expressed as:

$P=\frac{2m(\frac{\stackrel{\‾}{X}}{\stackrel{\‾}{X^{\′}}}-1)}{(1+m)}$

So, S _ican further be rewritten as:

$S_i=\frac{X_i}{X_i^{\′}}$

$=1+P\×\frac{i}{m}$

$=1+\frac{2(\frac{\stackrel{\‾}{X}}{\stackrel{\‾}{X^{\′}}}-1)}{(1+m)}\×i$

Therefore, each X in original map 2 _ican be determined by following formula:

$X_i=X_i^{\′}\×S_i$

$=\frac{\stackrel{\‾}{X^{\′}}}{m}\×[1+\frac{2(\frac{\stackrel{\‾}{X}}{\stackrel{\‾}{X^{\′}}}-1)}{(1+m)}\×i]$

According to above formula, a predefined numerical value (4 centimeters), with m be the numerical value (being respectively 13 centimeters and 2) that user sets, so can try to achieve respectively S ₁be 2.5, S ₂be 4, and further learn X ₁be 2 × 2.5=5, X ₂be 2 × 4=8.

That is to say, original map 2 is respectively with X ₁(5 centimeters) and X ₂(8 centimeters) present the body of a map or chart of 10 kilometers and 16 kilometers, and its engineer's scale is 2 kilometers/centimeter.Be converted to gradually after layer ground Fig. 1, adjust each sub-block 121 of block 12 respectively with X ' ₁(2 centimeters) and X ' ₂(2 centimeters) correspondence presents the body of a map or chart of 10 kilometers and 16 kilometers, and its engineer's scale is respectively 5 kilometers/centimeter and 8 kilometers/centimeter.

Via above-mentioned conversion, gradually layer ground Fig. 1 is by adjusting block 12 in the adjustment of displaying ratio, demonstration information, and can present the body of a map or chart that is equal to original map 2 with less map size, and on same map, present cartographic information and the body of a map or chart of different levels.User can be as required, and elasticity is set the scope of original map 2 and the quantity of sub-block 121.On the other hand, adjust block 12 in the conversion of the similar directions X of conversion of Y-direction, do not repeat at this

Specify, aforementioned for with setting numerical value only for the content of the present embodiment is described, can not limit practical range of the present invention with this.In addition, the size and the setting position that retain block 11 also can be designed as by user and set, and are not limited to aforementioned content.Moreover, the size of each sub-block 121 (X ' _i) also can be set as different numerical value by user, be not limited to identical.Furthermore, the conversion proportion S of each sub-block 121 in this step _iand engineer's scale is to increase progressively from inside to outside, but can be also sequentially to successively decrease, not be limited with aforementioned content.

Be positioned at the gradually outer peripheral areas of layer ground Fig. 1 owing to adjusting block 12, do not need to show secondary road information, therefore consult Fig. 3, execution step S4 and S5: will adjust after the secondary road information deletion of block 12, show final gradually layer ground Fig. 1.

Below consult the explanation of Fig. 4 and relevant indicators gradually layer ground Fig. 1 apply to the embodiment of a guider 3.

Guider 3 comprises a processing module 31, a storage module 32, a wireless module 33 and a display module 34.Storage module 32 is electrically connected on processing module 31, and stores the information of many original map 2.Wireless module 33 is electrically connected on processing module 31, and receives a wireless location signal 15 and transfer to processing module 31.

Wherein, processing module 31 receives after an adjustment parameter information and original map 2 information, this original map 2 is converted to gradually layer ground Fig. 1 of a correspondence according to abovementioned steps S1～S4, and gradually layer ground Fig. 1 is shown in display module 34, and adjust the map location that gradually layer ground Fig. 1 shows according to wireless location signal 15.

Therefore, user sets by the size of adjusting parameter or original map 2, can present at display module 34 gradually layer ground Fig. 1 of corresponding specification, and the direction that can guide vehicle to advance by navigation feature on layer ground Fig. 1 gradually.Carry out when navigation feature, can be by vehicle location in the reservation block 11 of layer ground Fig. 1 gradually, allow user learn near the map details such as main roads information and secondary road information vehicle.In addition, adjusting block 12 provides apart from vehicle main roads information at a distance, and this main roads information is connected mutually with the main roads information retaining in block 11, the reference can advance as vehicle time, and the convenience that enhancement is driven.

Illustrate that referring to Fig. 5 and Fig. 6 the present invention navigates with gradually the second preferred embodiment of layer ground Fig. 1.In a second embodiment, gradually layer ground Fig. 1 also comprises a reservation block 11 and and will retain block 11 around adjustment block 12 wherein, but two embodiment differences are the gradually producing method difference of layer ground Fig. 1.

Specifically, the present embodiment is the original map 2 that an original map 2 is bent to form to a deflection, and the curvature of bending determines by adjusting parameter.Then, the original map of this deflection 2 is projected to a virtual plane 14, and deletion is adjusted the secondary road information in block 12 and is presented gradually layer ground Fig. 1.Mode according to this, can have less engineer's scale corresponding to the reservation block 11 at deflection position, and peripheral reservation block 11 regions have larger engineer's scale.In addition, be set as being positioned at the gradually symcenter of layer ground Fig. 1 owing to retaining block 11, therefore original map 2 must be from its centre deflection.But according to the display position that retains block 11, original map 2 can be carried out deflection from different parts, and the curvature of bending also can be adjusted the content that is not limited to disclose herein according to required gradually layer ground Fig. 1 engineer's scale.

What specify is, because the present embodiment is to utilize the mode of bending original map 2 to produce adjustment block 12, therefore, adjust in parameter information and only need to comprise the adjustment parameter for determining to bend curvature, do not need to comprise the number of blocks parameter of determinant block 121 quantity.

In sum, a gradually layer ground Fig. 1 who produces through above-mentioned two kinds of modes comprises and retains block 11 and adjustment block 12 two parts, retain block 11 and show detailed main roads information and secondary road information, adjust the wider main roads information of block 12 indication ranges, therefore have advantages of that indication range is wide and demonstration information is detailed.In addition, be mutually connected with the main roads of adjusting block 12 owing to retaining block 11, can increase the intuitive of map, and can promote the smoothness of driving.

Claims (18)

1. Navigation with gradually layer a map, conversion from an original map, this original map presents most main roads information and most secondary road information, it is characterized in that this gradually layer a map comprise:

   One retains block, presents part main roads information and the part secondary road information of this original map; And

   One adjusts block, and by this reservation block, around wherein and present the main roads information that does not see this reservation block in this original map, and the engineer's scale of this adjustment block is greater than this reservation block,

   Wherein, at least one main roads of this reservation block are connected in main roads corresponding in this adjustment block.
2. 2. gradually layer map of navigation according to claim 1, it is characterized in that: this body of a map or chart that gradually layer map presents is equal to this original map and size is less than this original map, in this gradually in layer map the engineer's scale of this reservation block be equal to this original map, and the engineer's scale of this adjustment block is greater than this original map.
3. 3. layer map gradually for navigation according to claim 1, is characterized in that: this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein, and the engineer's scale of this sub-block is for increasing progressively from inside to outside.
4. 4. layer map gradually for navigation according to claim 1, is characterized in that: this reservation block is positioned at this gradually symcenter of layer map, and this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein.
5. 5. navigate and use a gradually production method for layer map, it is characterized in that comprising following steps:

   (A) receive an original map and in order to adjust the adjustment parameter information of engineer's scale of this original map;

   (B) according to this adjustment parameter information by this original map be converted to one gradually layer map, this gradually layer map comprise a reservation block and by this reservation block around adjustment block wherein, and the engineer's scale of this reservation block is less than the engineer's scale of this adjustment block; And

   (C) show this gradually layer map.
6. 6. the gradually production method of layer map of navigation according to claim 5, it is characterized in that: this body of a map or chart that gradually layer map presents is equal to this original map and size is less than this original map, in this gradually in layer map the engineer's scale of this reservation block be equal to this original map, and the engineer's scale of this adjustment block is greater than this original map.
7. 7. the gradually production method of layer map of navigation according to claim 5, it is characterized in that: this original map presents most main roads information and most secondary road information, this reservation block presents part main roads information and the part secondary road information of this original map, this adjustment block presents the main roads information that does not see this reservation block in this original map, and at least one main roads in this adjustment block are connected in main roads corresponding in this reservation block.
8. 8. the gradually production method of layer map of navigation according to claim 5, it is characterized in that: this original map presents most main roads information and most secondary road information, and in this main roads information of this original map of step (B) and this secondary road information, corresponding conversion is to this reservation block and this adjustment block respectively, and this production method also comprises a step (D) between this step (B) and this step (C): delete this gradually secondary road information in the adjustment block of layer map.
9. 9. the production method of layer map gradually for navigation according to claim 5, is characterized in that: in step (B) by this original map be converted to this gradually a layer map comprise following sub-step:

   (B1) bend this original map and form the original map of a deflection, and the curvature of this original map bending is determined by this adjustment parameter;

   (B2) original map of this deflection is projected to a virtual plane, and makes this virtual plane present this gradually layer map.
10. 10. the gradually production method of layer map of navigation according to claim 5, it is characterized in that: this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein, the quantity of this sub-block is to adjusting parameter, and the engineer's scale of this sub-block increases progressively from inside to outside according to this adjustment parameter.
11. The production method of layer map gradually for 11. navigation according to claim 10, is characterized in that: the engineer's scale of this sub-block is also increased progressively by interior outward according to the size of this original map and the size of this adjustment block.
12. The gradually production method of layer map of 12. navigation according to claim 5, it is characterized in that: this reservation block is positioned at this gradually symcenter of layer map, and this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein.
13. 13. 1 kinds of guiders, is characterized in that comprising:

    One processing module;

    One storage module, is electrically connected on this processing module and stores many original map information;

    One wireless module, is electrically connected on this processing module and receives a wireless location signal and transfer to this processing module; And

    One display module, is electrically connected on this processing module,

    Wherein, this processing module receives one and adjusts parameter information, and an original map is converted to the gradually layer map of a correspondence, and by this gradually a layer map be shown in this display module, and adjust this map location that gradually layer map shows according to this wireless location signal; This gradually layer a map comprise a reservation block and an adjustment block around this reservation block, the engineer's scale of this reservation block is less than the engineer's scale of this adjustment block.
14. 14. guiders according to claim 13, it is characterized in that: this body of a map or chart that gradually layer map presents is equal to this original map and size is less than this original map, in this gradually in layer map the engineer's scale of this reservation block be equal to this original map, and the engineer's scale of this adjustment block is greater than this original map.
15. 15. guiders according to claim 13, it is characterized in that: this original map presents most main roads information and most secondary road information, this reservation block presents part main roads information and the part secondary road information of this original map, this adjustment block presents the main roads information that is different from this reservation block in this original map, and at least one main roads in this adjustment block are connected in main roads corresponding in this reservation block.
16. 16. guiders according to claim 13, it is characterized in that: this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein, the quantity of this sub-block is to adjusting parameter, and the engineer's scale of this sub-block increases progressively from inside to outside according to this adjustment parameter.
17. 17. guiders according to claim 16, is characterized in that: the engineer's scale of this sub-block is also according to the size of this original map and the size of this adjustment block and increased progressively outward by interior.
18. 18. guiders according to claim 13, is characterized in that: this reservation block is positioned at this gradually symcenter of layer map, and this adjustment block comprise multiple from inside to outside gradually layer distribute and by this reservation block around sub-block wherein.