JP2011053101A - Vehicle present position display device and vehicle present position display method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle present position display device and a vehicle present position display method capable of displaying on a display part, an image based on speed or a direction of scrolling of a map image. <P>SOLUTION: A car navigation device 1 includes a GPS part 12 for measuring the present position of a vehicle 2; a display part 16 for displaying the map image 161 based on the present position of the vehicle 2; a touch operation part 10 and a remote operation part 11 capable of selecting a desired place of the map image 161; an image processing part 15 for scrolling the map image 161 so that the selected desired place faces to the center a display screen 160 of the display part 16; and a control part 100 for controlling the display part 16 so as to display first to third arrows 172, 174, 176 displaying the scrolling speed of the map image 161. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle current position display device and a vehicle current position display method.

  As a conventional technique, a mark indicating the current position of the vehicle and a line segment indicating the traveling direction of the vehicle are displayed on the display screen, and a diamond-shaped area from the current position to the destination is displayed differently from other areas. 2. Description of the Related Art A vehicle position display device for making a state is known (for example, see Patent Document 1).

  According to this vehicle position display device, it is possible to intuitively easily grasp the traveling direction of the vehicle with respect to the destination direction, and to quickly and accurately determine the direction in which the vehicle should travel at an intersection or the like.

Japanese Patent Laid-Open No. 7-141598

  However, the conventional vehicle position display device only displays a mark indicating the current position of the vehicle, a line segment indicating the traveling direction of the vehicle, and a rhombus region from the current position to the destination on the display screen. When scrolling images, there is a problem that it is difficult to understand the scrolling speed and direction of the map image.

  An object of the present invention is to provide a vehicle current position display device and a vehicle current position display method for displaying an image based on the scrolling speed and direction of a map image on a display unit.

  One aspect of the present invention is a measurement unit that measures a current position of a vehicle, a display unit that displays a map image based on the current position of the vehicle measured by the measurement unit, and the map displayed on the display unit. A selection unit enabling selection of a desired location of the image, and scrolling the map image so that the desired location is directed toward the center of the display screen of the display unit based on the selection of the desired location by the selection unit A vehicle current position display comprising: an image processing unit that performs image processing to be performed; and a control unit that controls the display unit to display a speed image indicating a scrolling speed of the map image scrolled by the image processing unit. Providing equipment.

  According to another aspect of the present invention, the current position of the vehicle is measured, a map image based on the measured current position of the vehicle is displayed, a desired location of the displayed map image is selected, and the selected desired A speed image indicating a scroll speed of the map image associated with the location is displayed, and after the speed image is displayed, the map image is scrolled so that the desired location is directed to the center of the display screen of the display unit. A vehicle current position display method including the above is provided.

  According to the present invention, an image based on the speed and direction of scrolling a map image can be displayed on the display unit.

FIG. 1 is a block diagram relating to the car navigation apparatus according to the first embodiment of the present invention. FIG. 2 is a schematic diagram of the interior of the vehicle equipped with the car navigation device according to the first embodiment of the present invention. FIG. 3 is a schematic diagram of an image displayed on the display unit according to the first embodiment of the present invention. FIG. 4 is a schematic diagram of an image displayed on the display unit according to the first embodiment of the present invention. FIG. 5 is a flowchart according to the first embodiment of the present invention. FIGS. 6A to 6C are schematic views of a display screen on which arrows indicating the magnitude of the scroll speed according to the second embodiment of the present invention are displayed. FIG. 7 is a flowchart according to the second embodiment of the present invention. FIG. 8 is a schematic diagram of a display screen on which an arrow indicating the direction of scrolling is displayed according to the third embodiment of the present invention. FIG. 9 is a flowchart according to the third embodiment of the present invention. FIG. 10A is a schematic diagram illustrating a first modification of the present invention, FIG. 10B is a schematic diagram illustrating the second modification, and FIG. 10C is a schematic diagram illustrating the third modification. FIG. 11A is a schematic diagram illustrating a fourth modification of the present invention, FIG. 11B is a schematic diagram illustrating the fifth modification, and FIG. 11C is a schematic diagram illustrating the sixth modification.

[First Embodiment]
(Configuration of car navigation system)
FIG. 1 is a block diagram relating to the car navigation apparatus according to the first embodiment of the present invention. Hereinafter, a car navigation device as an example of a vehicle current position display device of the present invention will be described.

  As shown in FIG. 1, the car navigation device 1 includes a touch operation unit 10 and a remote operation unit 11 as a selection unit, a GPS (Global Positioning System) unit 12 as a measurement unit, a storage unit 14, and an image processing unit. 15, a display unit 16, and a control unit 100.

  FIG. 2 is a schematic diagram of the interior of the vehicle equipped with the car navigation device according to the first embodiment of the present invention.

  For example, as shown in FIG. 2, the touch operation unit 10 is installed integrally with a display unit 16 installed in a substantially vertical portion of the center console 20. The touch operation unit 10 is made of a transparent conductive film such as tin oxide, zinc oxide, ITO (indium tin oxide), or the like.

  The touch operation unit 10 includes, for example, a matrix switch method in which an electrical circuit is configured by contacting two transparent upper and lower transparent conductive films, and detects a touch operation position based on vertical and horizontal position information. Resistive film system that applies a voltage to one of the transparent conductive films and detects the touched position based on the voltage generated on the second sheet according to the touched position, highly rigid glass, etc. Surface acoustic wave system that detects the position of touch operation by attaching a piezoelectric element to multiple corners of the substrate and generating a vibration wave and detecting the vibration wave that bounces without being absorbed at the place touching the substrate with the piezoelectric element An electromagnetic induction system in which the sensor unit is disposed under the display unit 16 (preferably a thin liquid crystal) and the position indicated by the stylus pen is detected by the sensor unit, and the fingertip of the operator and the transparent conductive film Capacitive type for detecting a position touched is used to catch the change in capacitance between the.

  The touch operation unit 10 outputs a first operation signal based on the touch operation to the control unit 100.

  For example, as shown in FIG. 2, the remote control unit 11 is installed in a substantially horizontal portion of the center console 20. The remote operation unit 11 is configured to be capable of horizontal operation and push operation, and outputs a second operation signal based on the horizontal operation and push operation to the control unit 100. For example, the horizontal operation is to operate a cursor described later, and the push operation is to select a location on the map image indicated by the cursor, an icon, or the like. The remote operation unit 11 may be a joystick that operates a cursor or the like by tilting the operation unit, a trackball that operates the cursor or the like by a rotation operation, and the like, but is not limited thereto.

  For example, the GPS unit 12 measures the current position of the vehicle 2 based on communication with a satellite, and calculates the speed, traveling direction, and direction of the vehicle 2 based on the measured current position of the vehicle 2 to calculate GPS. The signal is output to the control unit 100 as a signal.

  The storage unit 14 is composed of, for example, an HDD (Hard disk drive) and stores map data 140. The map data 140 is, for example, data in which coordinates based on latitude and longitude are associated with a map image. The control unit 100 reads the corresponding map data 140 from the storage unit 14 based on the coordinates of the current position of the vehicle 2 measured by the GPS unit 12 and displays the map data 140 on the display unit 16 via the image processing unit 15 as a map image. .

  FIG. 3 is a schematic diagram of an image displayed on the display unit according to the first embodiment of the present invention. For example, as illustrated in FIG. 3, the image processing unit 15 includes a map image 161 that is an image of a map around the current position of the vehicle 2, and a current position cursor 162 that is an image indicating the current position of the vehicle 2 on the map image 161. , And a cursor 164, which is an image simulating the shape of a hand, is superimposed and displayed on the display screen 160. The image processing unit 15 performs image processing for scrolling the map image 161.

  As shown in FIG. 3, the current position cursor 162 has an isosceles triangular image showing the traveling direction of the vehicle 2 at the center, and the image is surrounded by a double circle image. The current position cursor 162 is displayed based on the current position of the vehicle 2 measured by the GPS unit 12. In the present embodiment, it is assumed that the current position cursor 162 is always displayed at the center of the display screen 160.

  For example, the cursor 164 can be moved by a touch operation on the touch operation unit 10, and can also be moved by a horizontal operation on the remote operation unit 11.

  The display unit 16 is, for example, a touch panel in which the liquid crystal display and the touch operation unit 10 are integrated.

  The control unit 100 is, for example, a microcomputer including a CPU (Central Processing Unit), a RAM (Random Access Memory) 102, a ROM (Read Only Memory) 104, and the like. The RAM 102 stores, for example, temporarily read data. The ROM 104 has, for example, area data 104a and mode data 104b.

  The area data 104a is, for example, data related to first to third areas described later, and the control unit 100 compares the coordinates on the display screen 160 indicated by the cursor 164 with the area data 104a to determine which of the cursors 164 is. It is determined whether it belongs to the area.

  The mode data 104b is data relating to, for example, the centering mode and the map continuous movement mode that the car navigation device 1 has. For example, the control unit 100 switches between the centering mode and the continuous map movement mode based on the duration of the touch operation or the push operation and the mode data 104b.

  Here, the centering mode is a place on the map image 161 selected by the touch operation or the push operation when the duration of the touch operation or the push operation is within a predetermined time (for example, lower than 1 second). Is a mode in which the map image 161 is scrolled so as to be in the center of the display screen 160.

  In addition, the continuous map movement mode refers to a place on the map image 161 selected by the touch operation or the push operation when the duration of the touch operation or the push operation is longer than a predetermined time (for example, 1 second or longer). In this mode, the map image 161 is continuously scrolled during a period in which the touch operation or the push operation is continued. The scroll direction in the continuous map movement mode is, for example, a linear direction connecting the current position cursor 162 of the vehicle 2 and the selected location, and the selected location is a direction toward the center of the display screen 160.

  Based on the GPS signal output from the GPS unit 12, the control unit 100 selects a map image 161 corresponding to the current position of the vehicle 2 from the map data 140 stored in the storage unit 14, and the selected map image 161 is stored in the storage unit. 14 and displayed on the display unit 16 via the image processing unit 15.

  FIG. 4 is a schematic diagram of an image displayed on the display unit according to the first embodiment of the present invention. As shown in FIG. 4, the control unit 100 divides the display screen 160 into a first region 166, a second region 168, and a third region 170 based on the region data 104a. The boundary is displayed with a dotted line via the part 16. Note that the boundary of the region is not limited to the dotted line, but may be indicated by a solid line, or may be indicated by a method such as color-coding the region, but is not limited thereto.

  The control unit 100 has coordinates corresponding to the touch operation on the touch operation unit 10, the coordinates corresponding to the push operation on the remote operation unit 11, and the coordinates of any of the first to third regions 166, 168 and 170 based on the region data 104 a. It is determined whether it is included in the area.

  As shown in FIG. 4, the first region 166 is a region within a circle having a predetermined radius with the current position cursor 162 as the center. For example, the coordinates on the display screen 160 of the location on the map image 161 selected based on the touch operation on the touch operation unit 10 or the push operation on the remote operation unit 11 are displayed in the first region 166. When it is determined that the map image 161 exists, the map image 161 is scrolled at a predetermined scroll speed.

  As shown in FIG. 4, the second region 168 is a region that is centered on the current position cursor 162, has a larger radius than the first region 166, and excludes the first region 166. For example, the coordinates on the display screen 160 of the location on the map image 161 selected based on the touch operation on the touch operation unit 10 or the push operation on the remote operation unit 11 are displayed in the second region 168. When it is determined that the map image 161 exists, the map image 161 is scrolled faster than a predetermined scroll speed.

  As shown in FIG. 4, the third area 170 is an area in the display screen 160 excluding the first and second areas 166 and 168. For example, the control unit 100 displays the coordinates on the display screen 160 of the location on the map image 161 selected based on the touch operation on the touch operation unit 10 or the push operation on the remote operation unit 11 in the third region 170. When it is determined that the map image 161 exists, the map image 161 is scrolled faster than a predetermined scroll speed.

  The scroll speed is not limited to the above example, and the area may be set based on two scroll speeds or three or more scroll speeds. Also, the shape of the region is not limited to a circle.

(Operation)
Below, operation | movement of the car navigation apparatus which concerns on 1st Embodiment is demonstrated according to the flowchart of FIG. In each of the embodiments described below, the two modes of the centering mode and the continuous map movement mode will be mainly described. However, the display method may be limited to one of the modes, If a mode other than two modes is provided, the present invention may be applied to modes other than the two modes.

  First, when the power of the vehicle 2 is turned on, the control unit 100 measures the current position of the vehicle 2 via the GPS unit 12.

  Next, the GPS unit 12 outputs the measured current position of the vehicle 2 to the control unit 100 as a GPS signal.

  Next, the control unit 100 reads the map image 161 based on the current position of the vehicle 2 from the storage unit 14 based on the GPS signal acquired from the GPS unit 12, and the read map image 161 is passed through the image processing unit 15. Display on the display unit 16. Further, the control unit 100 causes the dotted line indicating the boundary between the first and second regions 166 and 168 to be displayed on the map image 161 via the image processing unit 15.

  Next, when Yes in Step 1 is established by the touch operation on the touch operation unit 10 or the push operation on the remote operation unit 11 by the operator, the control unit 100 acquires the first acquired from the touch operation unit 10 or the remote operation unit 11. Alternatively, it is determined which region is selected based on the second operation signal, and the mode is determined from the operation duration (S2).

  Specifically, the control unit 100 calculates the coordinates on the display screen 160 of the place on the map image 161 selected by the touch operation or the push operation based on the acquired first or second operation signal, and this coordinate The area where the touch operation or the push operation is performed is determined based on the above. The control unit 100 determines the mode based on the duration of the touch operation or the push operation and the mode data 104b.

  Next, when the control unit 100 determines in step 2 that the centering mode is selected from the duration of the performed operation (S3: Yes), the selected location on the map image 161 is displayed at the center of the display screen 160. Until moving, the map image 161 is scrolled through the image processing unit 15 and the display unit 16 (S4), and the process is terminated. This scrolling is performed at a scrolling speed based on the determined area.

  For example, when a touch operation or a push operation is performed in the third region 170, the control unit 100 determines the scroll speed in the first and second regions 166 and 168 via the image processing unit 15 and the display unit 16. The map image 161 is scrolled at a high speed.

  Here, when the mode determined by the control unit 100 is the continuous map movement mode in Step 3 (S3: No), the map image 161 is continuously scrolled for a period during which the performed operation is continued (S5). After determining that the operation has ended, the control unit 100 stops scrolling the map image 161 via the image processing unit 15 and the display unit 16 and ends the process.

(effect)
According to the first embodiment of the present invention, the following effects can be obtained.
Since the boundary lines of the first to third areas 166, 168, and 170 are displayed on the display unit 16, the scroll speed can be visually recognized and convenience is improved as compared with the case where the boundary lines are not displayed.

[Second Embodiment]
The second embodiment is different from the first embodiment in that a speed image indicating the magnitude of the scroll speed is displayed in stages. In the following embodiments, portions having the same configuration and function as those of the first embodiment are denoted by common reference numerals, and the description thereof is omitted.

(Operation)
FIGS. 6A to 6C are schematic views of a display screen on which arrows indicating the magnitude of the scroll speed according to the second embodiment of the present invention are displayed. Below, operation | movement of the car navigation apparatus which concerns on 2nd Embodiment is demonstrated according to the flowchart of FIG. In the following embodiments, operations overlapping with those of the first embodiment will be omitted or simply described.

  The control unit 100 reads the map image 161 based on the current position of the vehicle 2 from the storage unit 14 based on the GPS signal acquired from the GPS unit 12, and displays the read map image 161 via the image processing unit 15. 16 is displayed.

  Next, when Yes in Step 10 is established by the touch operation on the touch operation unit 10 by the operator or the push operation on the remote operation unit 11 by the operator, the control unit 100 acquires the first acquired from the touch operation unit 10 or the remote operation unit 11. Alternatively, the coordinates of the place selected based on the second operation signal are calculated (S11).

  Next, the control unit 100 calculates the distance between the current position cursor 162 and the place selected by the touch operation or the push operation, and displays an arrow as a speed image based on the calculated distance on the display screen 160 ( S12).

  In the present embodiment, the scroll speed has, for example, three levels of large, medium, and small, and the scroll speed is switched according to the distance between the selected location and the current position cursor 162. For example, the scroll speed is assumed to increase as the distance increases.

  For example, as shown in FIG. 6A, when the vicinity of the current position cursor 162 is selected, the control unit 100 calculates a distance based on the coordinates of the selected location, and the first based on this distance. The arrow 172 is displayed on the display screen 160. The first arrow 172 indicates a small scroll speed.

  For example, as shown in FIG. 6B, when a place away from the place shown in FIG. 6A is selected, the control unit 100 calculates a distance based on the coordinates of the selected place, When this distance is an area where the next scroll speed is switched, the second arrow 174 is displayed on the display screen 160. Since the second arrow 174 is longer than the first arrow 172 and the arrow is divided into two, the operator can see that the scroll is performed at the second speed of the scroll speed. .

  For example, as shown in FIG. 6 (c), when a place away from the place shown in FIG. 6 (b) is selected, the control unit 100 calculates the distance based on the coordinates of the selected place, If this distance is an area where the next scroll speed is switched, a third arrow 176 is displayed on the display screen 160. Since the third arrow 176 is longer than the second arrow 174 and the arrow is divided into three, the operator can see that the scroll is performed at the third speed of the scroll speed. .

  Next, the control unit 100 determines the mode from the duration of the operation (S13).

  Next, when the control unit 100 determines in step 13 that the centering mode is selected from the duration of the performed operation (S14: Yes), the selected location on the map image 161 is displayed at the center of the display screen 160. Until it moves, the map image 161 is scrolled through the image processing unit 15 and the display unit 16 (S15), and the process ends. This scrolling is performed at a scrolling speed based on the displayed arrow.

  Here, when the mode determined by the control unit 100 is the continuous map movement mode in Step 13 (S14: No), the map image 161 is continuously scrolled for a period during which the performed operation is continued (S16). This scrolling is performed at a scrolling speed based on the displayed arrow.

  After determining that the operation has ended, the control unit 100 stops scrolling the map image 161 via the image processing unit 15 and the display unit 16 and ends the process.

(effect)
According to the second embodiment of the present invention, since the scroll speed and direction can be visually recognized in stages and by the first to third arrows 172, 174, 176, the first to third Compared with the case where the arrows 172, 174, and 176 are not displayed, the operation becomes easier.

  In the above embodiment, the arrow is displayed after selection. However, the present invention is not limited to this, and the arrow may be displayed before selection. For example, when the car navigation device 1 is in the centering mode or the continuous map movement mode, an arrow may be always displayed when the cursor 164 is moved by the remote operation unit 11. Displaying before selection makes it easy to select a desired scrolling speed.

  In the above description, the mode is determined after the arrow is displayed. However, the scroll speed may be determined after the mode is determined.

[Third Embodiment]
The third embodiment is different from the first and second embodiments in that only the direction of scrolling the map image is displayed by an arrow.

(Operation)
FIG. 8 is a schematic diagram of a display screen on which an arrow indicating the direction of scrolling is displayed according to the third embodiment of the present invention. Below, operation | movement of the car navigation apparatus which concerns on 3rd Embodiment is demonstrated according to the flowchart of FIG.

  Steps 20 and 21 are the same as steps 10 and 11 in the second embodiment.

  Next, the control unit 100 displays on the display screen 160 a fourth arrow 178 that connects the current position cursor 162 and the coordinates at which the touch operation or the push operation is performed (S22). The fourth arrow 178 indicates the direction of scrolling.

  Steps 23 to 26 are the same as steps 13 to 16 in the second embodiment.

(effect)
According to the third embodiment of the present invention, since the scroll direction is visually recognized by the fourth arrow 178, the operation is facilitated as compared with the case where the fourth arrow 178 is not displayed.

(Modification)
FIG. 10 (a) is a schematic diagram showing Modification Example 1 of the present invention, (b) is a schematic diagram showing Modification Example 2, and (c) is a schematic diagram showing Modification Example 3, FIG. 11A is a schematic diagram illustrating a fourth modification of the present invention, FIG. 11B is a schematic diagram illustrating the fifth modification, and FIG. 11C is a schematic diagram illustrating the sixth modification. Below, the modifications 1-6 of this invention are demonstrated.

  In Modification 1, as shown in FIG. 10A, a first orientation image 182 indicating the orientation is displayed on the display screen 160. In the first orientation image 182, for example, the orientation indicated by the hatched portion of the first orientation image 182 is north. Further, the center of the first azimuth image 182 coincides with the center of the current position cursor 162, for example, and azimuth lines 183 that pass through this center and are orthogonal to each other are displayed.

  This azimuth line 183 indicates east, west, south, and north. In addition, an arrow 180 indicating the direction of scrolling the map image 161 is displayed on the display screen 160. This arrow 180 may be only the direction of scrolling, or may indicate the scrolling speed by the number of breaks or the length as in the above embodiment. Since the first orientation image 182 is large with respect to the display screen 160, the orientation is easy to understand.

  For example, the control unit 100 calculates the azimuth based on the GPS signal acquired from the GPS unit 12. The control unit 100 causes the display unit 16 to display the first azimuth image 182 and the azimuth line 183 via the image processing unit 15 based on the calculated azimuth.

  In the second modification, as shown in FIG. 10B, the second orientation image 184 indicating the orientation is displayed on the display screen 160. The second azimuth image 184 is, for example, a triangular image displayed at the end of the azimuth line 183 facing the north direction. Since the second orientation image 184 is smaller than the first orientation image 182, the map image 161 is easy to see.

  In the third modification, as shown in FIG. 10C, a third orientation image 186 indicating the orientation is displayed on the display screen 160. In the third azimuth image 186, for example, N character images representing north are displayed at the end of the azimuth line 183 facing the north direction. Since the third orientation image 186 is smaller than the first orientation image 182, the map image 161 is easy to see.

  As shown in FIG. 11A, in the fourth modification, the boundary lines of the first to third regions 166, 168, and 170 in the first embodiment are further displayed on the display screen 160 shown in FIG. Is displayed. In the fourth modification, the boundary lines of the first to third areas 166, 168, and 170 are displayed, so that the scroll speed of the map image 161 can be visually recognized, and convenience is improved.

  As shown in FIG. 11B, the modified example 5 includes a boundary line between the first to third areas 166, 168, and 170 in the first embodiment on the display screen 160 shown in FIG. 10B. Is displayed. In the fifth modification, the boundary lines of the first to third regions 166, 168, and 170 are displayed, so that the scrolling speed of the map image 161 is more visually understandable, and convenience is improved.

  As shown in FIG. 11C, the modified example 6 includes a boundary line between the first to third regions 166, 168, and 170 in the first embodiment on the display screen 160 shown in FIG. Is displayed. In the sixth modification, the boundary lines of the first to third regions 166, 168, and 170 are displayed, so that the scrolling speed of the map image 161 is more visually understandable, and convenience is improved.

  The present invention is not limited to the above-described embodiments, and various modifications and combinations can be made without departing from or changing the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Car navigation apparatus, 2 ... Vehicle, 10 ... Touch operation part, 11 ... Remote operation part, 12 ... GPS part, 14 ... Memory | storage part, 15 ... Image processing part, 16 ... Display part, 20 ... Center console, 100 ... Control unit 102 ... RAM 104 ... ROM 104a ... region data 104b ... mode data 140 ... map data 160 ... display screen 161 ... map image 162 ... current position cursor 164 ... cursor 166 ... first 168 ... second area, 170 ... third area, 172 ... first arrow, 174 ... second arrow, 176 ... third arrow, 178 ... fourth arrow, 180 ... arrow, 182 ... first orientation image, 183 ... azimuth line, 184 ... second orientation image, 186 ... third orientation image

Claims (6)

A measuring unit for measuring the current position of the vehicle;
A display unit for displaying a map image based on the current position of the vehicle measured by the measurement unit;
A selection unit that enables selection of a desired location of the map image displayed on the display unit;
An image processing unit that performs image processing for scrolling the map image so that the desired location is directed toward the center of the display screen of the display unit based on the selection of the desired location by the selection unit;
A control unit for controlling the display unit to display a speed image indicating a scroll speed of the map image scrolled by the image processing unit;
A vehicle current position display device.   The vehicle current position display device according to claim 1, wherein the speed image indicates a direction together with the scroll speed.   The vehicle current position display device according to claim 2, wherein the control unit displays an azimuth image indicating a azimuth on the display unit together with the speed image. Measure the current position of the vehicle,
Display a map image based on the measured current position of the vehicle,
Select the desired location of the displayed map image,
Displaying a speed image indicating the scroll speed of the map image associated with the selected desired location;
A vehicle current position display method including scrolling the map image so that the desired location is directed toward the center of the display screen of the display unit after the speed image is displayed.   The vehicle current position display method according to claim 4, wherein the speed image indicates a direction together with the scroll speed.   The vehicle current position display method according to claim 5, wherein the speed image indicating the scroll speed is displayed and an azimuth image indicating the azimuth is displayed.

Images