CN102192751A - Method and related device for displaying multiple points of interest on personal navigation device - Google Patents

Abstract

The invention relates to a method for displaying a plurality of interest points on a personal navigation device and a related device, wherein the method for displaying the plurality of interest points on the personal navigation device comprises the steps of displaying a map on a display of the personal navigation device; receiving touch input at an initial position of the display; searching the interest points in an area within a searching radius of the initial position; displaying the interest points in the area of the search radius, wherein the searched interest points are represented by corresponding icons, the icons and the corresponding places of the icons on the map are connected by a line, and the line extends outwards by taking the initial position as the center; dispersing the plurality of icons around the initial position to separate the plurality of icons from each other; and gradually increasing the search radius to increase the area within the search radius and displaying the interest points located in the increased area.

Description

Method and related device for displaying multiple points of interest on personal navigation device

technical field

The present invention relates to a method for displaying a plurality of points of interest (POI) on a personal navigation device, in particular to a method for displaying a plurality of adjacent points of interest scattered to form a flower shape to surround a selection method of positioning.

Background technique

Navigation devices based on the Global Positioning System (GPS) are well known and widely used in vehicles to provide navigation information for drivers. The functions of a general navigation device include providing a map database for displaying navigation instructions on a display of the navigation device. The navigation device is usually arranged on or in the instrument panel of the vehicle by adsorption or other erection methods.

The term "navigation device" means a device capable of providing user navigation information to allow the user to arrive at a predetermined location. The navigation device may contain an internal system (such as a GPS receiver) for receiving location information, or may be simply a device that can be connected to a receiver capable of receiving location information. The navigation device itself can calculate the route, or communicate with a remote server, so that the remote server calculates the route and provides navigation information to the navigation device. Alternatively, the navigation device can be a mixture of the above two methods, that is, both the navigation device itself and the remote server participate in the route calculation process. The personal GPS navigation device does not have to be integrated in the vehicle, but can be set in the vehicle or used in the vehicle. Generally (but not necessarily), a personal GPS navigation device is a self-contained device, such as including an internal GPS antenna, navigation software, and a map such that the desired route is depicted and displayed.

One of the features of personal navigation devices is the ability to list nearby points of interest. In suburban areas, the points of interest may be far apart and can be easily displayed on the display of the personal navigation device. However, when the personal navigation device passes through an urban area or other areas where there are many adjacent POIs, the POIs to be displayed may be too close or overlap due to the large number.

Please refer to FIG. 11 , which is a schematic diagram illustrating the map 400 . Map 400 includes a number of icons representing points of interest 402 within a small area. If the user wants to select a point of interest to find more relevant information or receive navigation instructions to the point of interest, it is quite difficult for the user because there are many icons representing the point of interest clustered together. For example, the area 404 on the map 400 contains many POIs 402 clustered together, making it difficult for the user to distinguish the POIs in the area 404 .

From the above, we can understand that when multiple points of interest are quite close to each other, it is very difficult to clearly display them on the display of the personal navigation device. In order to solve the above-mentioned problems, the prior art uses several different means to clearly present the information about the POI to the user of the personal navigation device.

In the prior art, one method of displaying multiple POIs in close proximity is to give different priority to different types of POIs. For example, an office building has a lower priority, while a hospital or tourist attraction has a higher priority. After the priority levels are established, the personal navigation device can be set to only display the POIs with a priority greater than or equal to a minimum priority. In addition, if there are still many qualified POIs after such display conditions are set, the personal navigation device may only display the POIs with the highest priority.

However, the problem with displaying POIs in the above manner is that if multiple POIs exist at the same location or nearby locations at the same time, displaying multiple types of POIs will still be too crowded, in which case only one type can be depicted POIs, ie icons representing POIs with the highest priority can be drawn. Another related problem is that if a POI is selected as the destination of the user's journey, and the type of POI is not enabled or given a high enough priority, the icon represented by the POI will still Could not be displayed on the map.

In addition, on a general personal navigation device, the user usually cannot narrow down the type of the POI to a range that better meets the needs. For example, assume that the user wants to go to a curry house to eat, but the personal navigation device can only provide POIs classified as "restaurants". Or, if the user wants to choose a coffee shop of a specific brand such as Starbucks, but the personal navigation device However, it only provides POIs in the "Coffee Shop" category.

Other problems can also arise when the area displayed on the map changes as the user continues to drive. When the point of view of the map changes, the relative position and priority of POIs will also change as time changes, causing some POI icons to be displayed while some POI icons disappear. This continuous display and disappearance of POI icons will cause confusion for users.

Most manufacturers of personal navigation devices usually make the map display too many points of interest (that is, more than the general needs of users) in the design, so as to highlight the richness of its content. Most of the time, however, users don't need information about many of these POIs. For example, POIs such as restaurants or ATMs are only needed when the user has specific needs (such as eating or withdrawing cash); the user does not need the information of these POIs during normal driving.

In addition, the user can select a specific point of interest displayed on the map to obtain more information about the point of interest. However, if the POI to be selected by the user is not displayed on the map, the user cannot select the POI to obtain its related information. The user may need to zoom in on the map or move around in order to display the desired point of interest on the personal navigation device. This is very troublesome to the user, especially when the user knows the existence of the specific point of interest, but cannot find the specific point of interest on the map of the personal navigation device.

Since most personal navigation devices have touch screen displays, it can also cause problems when the user touches a specific location on the map that contains multiple points of interest; in this case, the personal navigation device cannot determine whether the user is Which point of interest to select, so the detailed information of its location cannot be displayed correctly, causing inconvenience to the user.

Contents of the invention

The main purpose of the present invention is to provide a new method and related device for displaying multiple points of interest on a personal navigation device. The technical problem to be solved is to make the icons corresponding to the points of interest gradually appear on the display and change automatically position, so that the icons keep a certain distance from each other, and the user can easily browse the points of interest within the set search radius.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. According to a method for displaying multiple points of interest (Point of Interest, POI) on a personal navigation device proposed by the present invention, it comprises the following steps: displaying a map on a display of the personal navigation device; displaying a map on a display of the display receiving a touch input at the initial position; searching for the plurality of points of interest in an area within a search radius of the initial position; displaying the plurality of points of interest within the area of the search radius, wherein all the points of interest found are The plurality of points of interest are represented by a plurality of corresponding icons, and the plurality of icons and the corresponding points of interest are respectively connected by a line between corresponding locations on the map, and the line starts with the initial extending outward from the center of the position; dispersing the plurality of icons around the initial position, so that the plurality of icons are separated from each other; and gradually increasing the search radius, so that the area within the search radius increases to one Enlarges the area and displays additional POIs located within the enlarged area.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

The aforementioned method further includes stopping displaying additional POIs when the search radius is larger than an upper threshold.

The aforementioned method further includes only displaying the plurality of icons for a preset time after receiving the touch input at the initial position.

The aforementioned method further includes stopping displaying the plurality of icons when the touch input is received at another position of the display.

The aforementioned method, wherein the positions of the plurality of icons on the map will be changed so that between the plurality of icons, or between the plurality of icons and the lines connecting each icon to the corresponding location on the map , or keep a minimum distance between the lines connecting each icon to its corresponding location.

In the aforementioned method, wherein the plurality of icons move radially outward from the initial position to change positions on the map, and the length of the lines connecting each icon to the corresponding location on the map increases correspondingly.

The aforementioned method, wherein the plurality of icons are moved tangentially to change positions on the map, while the length of the lines connecting each icon to the corresponding location on the map remains constant.

The aforementioned method further includes displaying a marker to indicate a location located at the initial location.

The aforementioned method further includes: receiving a touch input to select an icon displayed on the map; and displaying related information of the POI corresponding to the displayed icon selected by the touch input.

In the foregoing method, different points of interest are represented by different icons.

The purpose of the present invention and the solution to its technical problem also adopt the following technical solutions to achieve. A personal navigation device proposed according to the present invention is used to display multiple points of interest, and the multiple points of interest are close to each other, which includes: a memory for storing a map database and the multiple points of interest; a touch display for displaying a map and for receiving a touch input at an initial position of the touch display; and a processor for searching an area within a search radius around the initial position the plurality of interest points, displaying the plurality of interest points in the area within the search radius, wherein the plurality of interest points searched by the processor are represented by a plurality of corresponding icons, and the plurality of icons And the plurality of corresponding points of interest are respectively connected by a line between the corresponding points on the map, and the line extends outward from the center of the initial position, and the plurality of icons are scattered around the initial position so that The plurality of icons are separated from each other, and the search radius is gradually increased, so that the area within the search radius is increased into an enlarged area, and additional points of interest located in the enlarged area are displayed.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

In the aforementioned personal navigation device, when the search radius is greater than an upper threshold, the processor stops displaying additional POIs.

In the aforementioned personal navigation device, after the touch display receives the touch input at the initial position, the processor only displays the icons for a preset time.

The aforementioned personal navigation device further includes that when the touch input is received at another position of the touch display, the processor stops displaying the plurality of icons.

The aforementioned personal navigation device, wherein said processor changes the position of said plurality of icons, so that between said plurality of icons, or said plurality of icons and lines connecting each icon to the corresponding location on the map , or lines connecting each icon to its corresponding location maintain a minimum separation distance.

In the aforementioned personal navigation device, wherein the plurality of icons move radially outward from the initial position to change positions on the map, and the length of the lines connecting each icon to the corresponding location on the map increases correspondingly.

In the aforementioned personal navigation device, wherein the plurality of icons move tangentially to change positions on the map, and the length of the line connecting each icon to the corresponding location on the map remains unchanged.

In the aforementioned personal navigation device, the processor controls the touch display to display a mark to mark a place located at the initial position.

The aforementioned personal navigation device, wherein after the touch display receives a touch input to select an icon displayed on the map, the processor supplies the touch display to display the icon corresponding to the touch input. Information about the POI of the displayed icon.

In the aforementioned personal navigation device, different points of interest are represented by different icons.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. By virtue of the above-mentioned technical solution, the method for displaying multiple points of interest on a personal navigation device and related devices of the present invention have at least the following advantages and beneficial effects: method to accurately display multiple points of interest. The icons corresponding to the points of interest gradually appear on the display and automatically change positions so that the icons keep a certain distance from each other. Therefore, the user can easily browse the POIs within the set search radius.

To sum up, the method for displaying a plurality of points of interest on a personal navigation device of the present invention includes displaying a map on a display of the personal navigation device; receiving a touch input at an initial position of the display; a search at the initial position The area within the radius is searched for the plurality of points of interest; the points of interest located in the area of the search radius are displayed, wherein the plurality of points of interest found are represented by corresponding icons, and the icons and their positions on the map Corresponding locations are connected by a line, and the line extends outward from the initial position; dispersing the plurality of icons around the initial position so that the plurality of icons are separated from each other; and gradually increasing the search Radius to increase the area within the search radius and display points of interest within that increased area. The present invention has significant progress in technology, has obvious positive effects, and is a novel, progressive and practical new design.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

The figure is a schematic diagram of the personal navigation device of the present invention.

FIG. 2 is a schematic diagram of a map including POIs and roads.

FIG. 3 is a schematic diagram of searching for POIs within a radius of an initial location in another map.

FIG. 4 is a schematic diagram of a map when a user touches an initial location.

FIG. 5 is a schematic diagram of searching for POIs in an area within a search radius around an initial position in a map.

Figure 6 is an icon representing a point of interest on a map.

FIG. 7 is a schematic diagram of the icons on the map continuing to fade in and starting to change their display positions to avoid overlapping with each other.

FIG. 8 is a schematic diagram showing that the icons on the map are fully displayed and correspondingly connected to the actual locations corresponding to each icon by lines.

FIG. 9 is a schematic diagram of the icon continuously moving to keep a distance from the line.

FIG. 10 is a schematic diagram of the final position of the icons on the map after they are changed so as to keep a preset distance between them. Fig. 11 is a schematic diagram of a map containing many representative points of interest within a small area.

10: Personal navigation device 12: Display

14: GPS receiver 16: Processor

18: User Interface 20: Speaker

30: memory 32: map database

34: Route selection software 36: Interest point data

116, 118: Points of Interest 112, 114, 204, 208: Roads

110, 120, 200, 220, 250, 252, 254, 256, 260: map

122, 220: area

130, 133, 134, 136, 138, 140, 300, 310, 320, 330: icons

131: Position point

132, 302, 312, 322, 332: lines

115: Initial position 117: Mark

R1: a radius around the initial position 202, 206: road markings

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the method and related devices for displaying multiple points of interest on a personal navigation device according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. Its specific implementation, methods, steps, structures, features and effects thereof are described in detail below.

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. Through the description of specific implementation methods, the technical means and effects of the present invention to achieve the intended purpose can be understood more deeply and specifically, but the attached drawings are only for reference and description, and are not used to explain the present invention limit.

Please refer to FIG. 1 , which is a schematic diagram of a personal navigation device 10 of the present invention. The personal navigation device 10 includes a display 12 , a GPS receiver 14 , a processor 16 , a user interface 18 , a speaker 20 , and a memory 30 . The display 12 can be a touch screen. The GPS receiver 14 is used to receive the current coordinates of the personal navigation device 10 . The processor 16 is used to control the operation of the personal navigation device 10 . The memory 30 is used to store a map database 32, and the map database 32 includes map data and POI data. In addition, the memory 30 also stores route selection software 34 and POI data 36 .

A plurality of POIs are stored in the POI data 36, and each POI has at least one corresponding POI category tag. For example, common POI category tags are "gas station", "restaurant", "hotel"...etc. In order to easily identify different types of POIs, each POI type can also have an icon representing its own type, like a bank can be represented by a money symbol "$".

Please refer to FIG. 2 , which is a schematic diagram of a map 110 including POIs 116 and 118 and roads 112 and 114 . The POI 116 corresponds to a landmark, and the POI 118 corresponds to a sightseeing spot. If the user wants to know more information about the POI 116 or 118, the user can touch or select one of the POI 116 or 118 on the display to obtain more relevant information. If the user touches a place on the map that does not contain any POI, the personal navigation device 10 will automatically search for nearby POIs. The present invention only requires the user to touch the map 110 displayed on the display 12 for operation or selection; the user does not need to use a mouse or other pointing devices to operate an indicator to move on the map 110 .

Please refer to FIG. 3 , which is a schematic diagram of searching for POIs within the radius R1 of the initial location 115 in another map 120 . Taking the initial position 115 as an example, before the user touches the map 120 , some or all of the POIs are hidden and not displayed on the map 120 . Presetting the display of the POI as hidden can prevent the map 120 from being too cluttered and improve the clarity of its browsing. Displaying too many points of interest on the map 120 may cause unnecessary distraction to the user while driving. When the user wants to know the POI adjacent to an area, the user only needs to touch any position on the display 12 ; in this embodiment, the position touched by the user on the display 12 is the initial position 115 .

When the user touches the initial position 115 , the personal navigation device will search for POIs in the area 122 within a radius R1 around the initial position 115 . If multiple points of interest are found in the area 122 , each point of interest is represented by a corresponding icon, and each icon is connected to its corresponding point on the map 120 by a line. Icon 130 corresponds to a parking lot at location point 131 . The icon 130 is connected to the location point 131 by a line 132 . 3 also includes other types of icons, such as icon 133 corresponding to a restaurant, icon 134 corresponding to a golf course, icon 136 corresponding to a museum, icon 138 corresponding to a hospital and icon 140 corresponding to a tourist information center. As shown in the figure, the icons 130, 133, 134, 136, 138, 140 each have a corresponding position point and a line connecting the position point and the icon, but in FIG. 3 only the position point 131 corresponding to the icon 130 and the line Lines 132 are labeled so that the layout is neat and convenient to browse.

Please refer to FIG. 4 , which is a schematic diagram of the map 200 when the user touches the initial position 115 . Before the user touches the map 200, the map 200 displays a plurality of roads and road markings. For example, road 204 has its corresponding road marking 202 to indicate that the name of road 204 is "Kedagalan Avenue". Similarly, the road 208 also has its corresponding road sign 206 to indicate that the name of the road 208 is "Zhongshan South Road". There are also other marks on the map 200, such as one-way street signs, which can help users distinguish which roads are one-way streets. After the user touches the initial position 115 on the map 200 displayed on the display 12 , the display 12 displays a corresponding mark 117 and a line 119 , wherein the line 119 is connected between the mark 117 and the initial position 115 . A cursor is displayed at the initial position 115 to represent the corresponding position on the map 220 when the user touches the display 12 . In this embodiment, the cursor is a small circle, but it can be replaced by other shapes. The marker 117 is the name of a location closest to the initial location 115 in the vicinity of the initial location 115 and for which the personal navigation device 10 can provide navigation instructions. When the user touches the initial position 115 on the display 12 , the personal navigation device 10 will search for the POIs within a nearby range according to the initial position 115 .

Please refer to Figure 5 to Figure 10. FIG. 5 is a schematic diagram of searching for POIs in an area 220 within a search radius around an initial location 115 in a map 250 . Once found, eligible POIs will gradually appear on the map 250 . FIG. 6 shows icons 300 , 310 , 320 , and 330 representing points of interest in map 252 . As time changes, the icons 300, 310, 320, and 330 also fade in (that is, the icons gradually become more obvious) and their positions are adjusted so that a preset distance is maintained between each icon. At the same time, the search radius will gradually increase until reaching a preset maximum search radius. In certain embodiments, when the user touches on the display 12 an icon corresponding to a point of interest, this action terminates the increase of the search radius and prevents further icons from being displayed on the display 12 . Then, the personal navigation device 10 will provide relevant information of the POI selected by the user.

In a specific embodiment, the user can also choose to ignore the default maximum search radius and set the entire map 250 as the search radius area 220 . In another embodiment, the default maximum search radius can be changed according to whether the user's location is located in an urban area. For example, when the user is located in a rural or suburban area, the personal navigation device 10 increases the preset maximum search radius to make the search range wider. Relatively speaking, when the user is located in an urban area, a smaller default maximum search radius can be used to narrow the search range. In other words, the user can set the default maximum search radius according to different situations.

Please refer to FIG. 7 , which is a schematic diagram of the icons 300 , 310 , 320 and 330 in the map 254 continuously fading in and starting to change their display positions to avoid overlapping with each other. Comparing the map 252 of FIG. 6 to the map 254 of FIG. 7 , it can be seen that the icons 310 , 320 and 330 have started to separate from each other. Please refer to FIG. 8 , which is to illustrate that the icons 300, 310, 320 and 330 in the map 256 have been fully displayed and correspondingly connected to the actual corresponding locations 304, 314, 324 by lines 302, 312, 322 and 332. And the schematic diagram of 334. As shown, icon 310 is very close to line 322 . Therefore, the icons 300, 310, 320, and 330 will change their positions so that the icons 300, 310, 320, and 3307 and the lines 302, 312, 322, and 332 do not intersect, overlap, or be within a predetermined distance. . In the embodiment shown in FIG. 8 , one or both of the icons 310 , 320 will change positions so that a predetermined distance is maintained between the icon 310 and the line 322 . The icon can move in any direction, but generally speaking, the icon will move outward radially or/and tangentially or laterally from the center of the initial position 115 .

Please refer to FIG. 9 and FIG. 10 . FIG. 9 is a schematic diagram of the icon 310 continuously moving to keep a distance from the line 322 . FIG. 10 shows the final positions of the icons 300 , 310 , 320 , and 330 after changing positions in the map 260 to maintain a predetermined distance from each other. Generally speaking, when the icons are displayed on the map, if the distance between the icons, or the distance between the icons and the lines connecting each icon to its corresponding location, or the line connecting each icon to its corresponding location If the distance between them is less than a threshold value, each icon will change position. Collisions or intersections between lines must also be avoided. Therefore, when there is an intersection between the lines connecting each icon to its corresponding location, the positions of the icons corresponding to the crossed lines can be exchanged by moving the corresponding icons, and at the same time, the exchanged Icons are reconnected with lines to their corresponding locations on the map.

After a preset time passes after the user touches the initial position 115, the icon will disappear from the map; the icon can be set to disappear gradually or disappear directly. If the user selects an icon before the icon disappears, the personal navigation device will provide relevant information of the point of interest corresponding to the icon. In certain embodiments, if the user selects an area of the display that does not have any icons, all icons will disappear to allow the user to clearly navigate the display.

To sum up, the present invention provides a method for clearly displaying multiple POIs even if the POIs are very close to each other. The icons corresponding to the points of interest gradually appear on the display and automatically change positions so that the icons keep a certain distance from each other. Therefore, the user can easily browse the POIs within the set search radius.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, may use the technical content disclosed above to make some changes or modify them into equivalent embodiments with equivalent changes, but as long as they do not depart from the technical solution of the present invention, the Technical Essence Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (20)

1. A method for displaying multiple points of interest on a personal navigation device, characterized in that it comprises the following steps: displaying a map on a display of the personal navigation device; receiving a touch input at an initial position of the display; searching for the plurality of points of interest in an area within a search radius of the initial location; displaying the multiple points of interest within the area within the search radius, wherein the multiple points of interest found are represented by corresponding multiple icons, the multiple icons and the multiple corresponding interests The corresponding points on the map are connected by a line, and the line extends outward from the initial position; dispersing the plurality of icons around the initial location to separate the plurality of icons from each other; and The search radius is gradually increased, so that the area within the search radius is increased into an enlarged area, and additional points of interest located in the enlarged area are displayed. 2. The method of claim 1, further comprising stopping displaying additional POIs when the search radius is larger than an upper threshold. 3. The method according to claim 1, further comprising only displaying the plurality of icons for a preset time after receiving the touch input at the initial position. 4. The method of claim 1, further comprising stopping displaying the plurality of icons when the touch input is received at another position of the display. 5. The method according to claim 1, wherein the plurality of icons will change their positions on the map, so that between the plurality of icons, or between the plurality of icons and connecting each icon to A minimum distance is maintained between the lines corresponding to the locations on the map, or between the lines connecting each icon to its corresponding locations. 6. The method according to claim 5, wherein the plurality of icons are moved radially outward from the initial position to change positions on the map, and each icon is connected to a corresponding location on the map The length of the lines also increases accordingly. 7. The method according to claim 5, wherein the plurality of icons are moved tangentially to change positions on the map, while the length of the lines connecting each icon to the corresponding location on the map remains unchanged . 8. The method of claim 1, further comprising displaying a marker to indicate a location at the initial location. 9. The method of claim 1, further comprising: receiving a touch input to select an icon displayed on the map; and Related information of the POI corresponding to the displayed icon selected by the touch input is displayed. 10. The method according to claim 1, wherein different points of interest are represented by different icons. 11. A personal navigation device, used to display a plurality of points of interest, the plurality of points of interest are close to each other, characterized in that it comprises: a memory for storing a map database and the plurality of POIs; a touch display for displaying a map and for receiving a touch input at an initial position of the touch display; and a processor, configured to search for the plurality of points of interest in an area within a search radius around the initial position, and display the plurality of points of interest in the area within the search radius, wherein the processor finds The plurality of points of interest are represented by a plurality of corresponding icons, and the plurality of icons and the plurality of corresponding points of interest are respectively connected by a line between corresponding locations on the map, and the lines are connected by The initial position extends outward from the center, the plurality of icons are scattered around the initial position so that the plurality of icons are separated from each other, and the search radius is gradually increased, so that the area within the search radius is increased to one Enlarges the area and displays additional POIs located within the enlarged area. 12. The personal navigation device of claim 11, wherein the processor stops displaying additional POIs when the search radius is greater than an upper threshold. 13. The personal navigation device according to claim 11, wherein the processor only displays the plurality of icons for a preset time after the touch display receives the touch input at the initial position . 14. The personal navigation device of claim 11, further comprising the processor stopping displaying the plurality of icons when the touch input is received at another position of the touch display. 15. The personal navigation device according to claim 11, wherein said processor changes the positions of said plurality of icons so that between said plurality of icons, or between said plurality of icons and links A minimum distance is maintained between the icons and the lines corresponding to the corresponding places on the map, or between the lines connecting each icon to its corresponding places. 16. The personal navigation device according to claim 15, wherein the plurality of icons are moved radially outward from the initial position to change positions on the map, and each icon is connected to a corresponding position on the map. The length of the line for the location also increases accordingly. 17. The personal navigation device according to claim 15, wherein the plurality of icons move tangentially to change positions on the map, and the length of the lines connecting each icon to the corresponding location on the map remains constant. Change. 18. The personal navigation device as claimed in claim 11, wherein the processor controls the touch display to display a mark to indicate a place located at the initial position. 19. The personal navigation device according to claim 11, wherein when the touch display receives a touch input to select an icon displayed on the map, the processor is provided to the touch display Related information of the POI corresponding to the displayed icon selected by the touch input is displayed. 20. The personal navigation device according to claim 11, wherein different points of interest are represented by different icons.

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