JP5210497B2 - Navigation device - Google Patents

Description

  The present invention relates to a navigation device capable of inputting an operation instruction by an operation of drawing a point or a line while touching a display screen with a finger or the like.

2. Description of the Related Art A vehicle-mounted information device that can give an operation instruction related to display based on a trajectory of an operator's touch on a touch panel arranged on the entire surface of a display screen of a display device is known as a prior art (Patent Document 1).
Japanese Patent Laid-Open No. 9-50235

  In the navigation device, various operations for changing the display screen, such as map scrolling, map enlargement, and map reduction, are assumed. The in-vehicle information device described in Patent Document 1 has a problem in that the types of touch operations are limited, and many operations of the navigation device cannot be performed with simple touch operations.

The invention of the present application includes a display monitor provided with a touch panel device that detects a plurality of touch positions, an input unit that inputs at least one locus of touch at a plurality of touch positions on the display screen of the display monitor, and an input by the input unit Execution means for executing various operations based on the locus of at least one touch at the plurality of touch positions , a map is displayed on the display monitor, and the execution means includes two touch positions on the display screen. Scroll amount designation means for designating the interval of the map as the scroll amount of the map, and the execution means does not move the touch position of one of the two touch positions on the display screen by the input means, and the other point. If a touch trajectory that moves the touch position is input, the map is displayed in the direction in which the touch position of the other point moves. Wherein the scrolling in the specified amount of scrolling by.
When the input means inputs a touch trajectory that moves the two touch positions on the display screen closer to the opponent's touch position, the execution means switches to display a map with a small scale ratio. Can be configured.
Further, the execution means switches to the display of a map with a large scale when the input means inputs a touch trajectory that moves the two touch positions on the display screen away from the opponent touch position. It can be constituted as follows.

  ADVANTAGE OF THE INVENTION According to this invention, many operation about a navigation apparatus can be performed by the touch operation which draws a point and a line drawing, touching.

  A configuration of a navigation apparatus according to an embodiment of the present invention is shown in FIG. The navigation device 1 in FIG. 1 is provided with a touch panel device that can detect a plurality of touch positions. Then, the navigation device 1 can be operated by touching the touch panel with a plurality of fingers and touching the plurality of fingers. The navigation device 1 includes a control circuit 11, a ROM 12, a RAM 13, a current location detection device 14, an image memory 15, a display monitor 16, a speaker 17, an input device 18, a touch panel device 19, a character recognition unit 111, and a disk drive 113. . The disk drive 113 is loaded with a DVD-ROM 114.

  The control circuit 11 includes a microprocessor and its peripheral circuits, and performs various controls by executing a control program stored in the ROM 12 using the RAM 13 as a work area. When the control circuit 11 performs a predetermined route search process based on the map data stored in the DVD-ROM 114, the processing result is displayed on the display monitor 16 as a recommended route.

  The current position detection device 14 is a device that detects the current position of the vehicle. For example, a vibration gyro 14a that detects the traveling direction of the vehicle, a vehicle speed sensor 14b that detects the vehicle speed, and a GPS signal from a GPS (Global Positioning System) satellite. It consists of a GPS sensor 14c and the like. The navigation device 1 determines a map display range, a route search start point, and the like based on the current location of the vehicle detected by the current location detection device 14, and displays the current location on the map.

  The image memory 15 stores image data to be displayed on the display monitor 16. This image data includes map drawing data and various graphic data, which are appropriately generated based on map data stored in the DVD-ROM 114 read by the disk drive 113. The navigation device 1 can perform map display and the like by using the image data generated in this way.

  The disk drive 113 is loaded with a DVD-ROM 114 in which map data to be displayed on the display monitor 16 is recorded. The map data includes map display data, route search data, and the like, and the display and route search data include road link information and node information. The map display data has map data of a plurality of scales from wide areas to details, and the scale of the display map can be changed according to a user request. The disk drive 113 reads map data for displaying a map on the display monitor 16 from the loaded DVD-ROM 114. The map data may be read from a recording medium other than the DVD-ROM 114, such as a CD-ROM or a hard disk.

  The display monitor 16 provides the user with various information such as a road map near the vehicle position as a screen display based on various information such as map data. The speaker 17 outputs a voice for guiding various input operations of the user or guiding a route. The input device 18 has an input switch for the user to set various commands, and is realized by a remote controller or the like. The user selects and sets the destination by manually operating the input device 18 in accordance with instructions on the display screen of the display monitor 16.

  When the destination is set by the user, the navigation apparatus 1 performs a route calculation from the current location detected by the GPS sensor 14c to the destination based on a predetermined algorithm. Hereinafter, this route calculation is referred to as route search. The route thus obtained (hereinafter referred to as a recommended route) is displayed on the screen so as to be distinguished from other roads by changing the display form, for example, the display color. Thereby, the user can recognize the recommended route on the map on the screen. In addition, the navigation device 1 instructs the user in the direction of travel using a screen or voice so that the vehicle can travel according to the recommended route, thereby guiding the route of the vehicle.

  The touch panel device 19 is a device that detects a touch position of a touch panel provided on the display screen of the display monitor 16. The display screen of the display monitor 16 is displayed through a touch panel. Details of the touch panel device 19 will be described with reference to FIG.

  As shown in FIG. 2A, the touch panel device 19 includes a touch panel 21, two optical units 22 a and 22 a, and a retroreflective frame 23. The optical units 22a and 22b have light irradiators 24a and 24b and light receivers 25a and 25b. The light irradiators 24 a and 24 b are composed of LEDs or the like, and irradiate the plane light parallel to the touch panel 21 at an irradiation angle where two sides of the retroreflective frame 23 enter. The light receiving units 25a and 25b are configured by a lens, an image sensor, and the like, and receive the planar light reflected by the retroreflective frame 23 in a field of view where the two sides of the retroreflective frame 23 enter, and shadows generated by blocking the planar light. The position of is detected. The retroreflective frame 23 is provided so as to surround the touch panel 21 and reflects incident light in the light source direction.

  The touch position of the touch panel 21 is detected as follows. When the touch panel 21 is not touched, all the planar light emitted from the optical units 22a and 22b is reflected by the retroreflective frame 23 without being blocked by any object. For this reason, no shadow is detected within the range of the visual field detected by the light receiving units 25a and 25b.

  However, as shown in FIG. 2B, when the touch panel 21 is touched at the touch position 26, the planar light emitted from the optical units 22a and 22b is blocked by a finger or a touch pen touching the touch panel 21. The planar light is not reflected from the retroreflective frame 23 in the touched direction. On the light receiving portions 25a and 25b of the optical units 22a and 22b, shadows are reflected based on the output signals of the light receiving portions 25a and 25b in which reflected light having shadows is incident at positions corresponding to the directions (α, β) of the touch position 26. Is detected, the position of the shadow is output to the touch panel control unit 110. The touch panel control unit 110 calculates the position where the plane light is blocked, that is, the coordinates (X, Y) of the touch position 26 using the triangulation method from the direction of the shadow detected by the optical units 22a and 22b. The touch position detected as described above is output to the control circuit 11. By repeatedly performing the above operations, a finger trajectory or the like can be detected as will be described later.

  When there are a plurality of touch positions, among the touch position candidates calculated from the shadow direction (for example, when there are two touch positions, there are four touch position candidates), the optical units 22a and 22b An accurate touch point described in Japanese Patent Laid-Open No. 2003-330603, for example, by comparing the distance between the touch position candidate and the light reception level when the optical units 22a and 22b detect a shadow. The true touch position is determined by a coordinate detection method or the like that can be determined, and a plurality of touch positions are detected.

  The touch panel device 19 of FIG. 1 has an input function like the input device 18. When the map screen, various buttons, display menu, etc. displayed on the display monitor 16 are touched with a finger, the touch panel 21 is touched, and the touch position is calculated by the touch panel control unit 110. Then, the calculated touch position is input to the control circuit 11, and a destination is set or processing defined in various buttons and display menus is executed. In addition, an operation instruction of the navigation device 1 can be input by a touch operation described later.

  Characters can be input by drawing characters on the touch panel 21 by handwriting. The handwritten character drawn by handwriting on the touch panel 21 is recognized by the character recognition unit 111 and output to the control circuit 11. The character recognition unit 111 recognizes handwritten characters as follows. The input pattern of the hand drawn character is collated with the character pattern registered in the dictionary 112. Then, the character pattern having the highest similarity is extracted. The handwritten character is recognized assuming that the character related to the extracted character pattern corresponds to the handwritten character.

  Next, a map display operation by a touch operation in the navigation device 1 according to the embodiment of the present invention will be described with reference to FIGS. Here, it is assumed that the user has previously displayed a map around the vehicle position on the display monitor 16.

  3A and 3B are diagrams for explaining a map scrolling operation. The map 30 is a map around the vehicle position, and a vehicle position mark 31 is displayed at the vehicle position. When scrolling the map 30, as shown in FIG. 3A, the user touches any two points 32 a and 32 b on the display screen with two fingers. Then, as shown in FIG. 3 (b), while maintaining one of the touch positions 32a, the other touch position is moved so as to draw a straight line in the direction of scrolling (direction of arrow 33). As a result, as shown in FIG. 3B, the map 30 is scrolled by a predetermined amount in the direction of the arrow 34 that is the same direction as the arrow 33.

  With reference to FIGS. 4A and 4B, an operation for changing a map to a wide area map will be described. As shown in FIG. 4A, the user touches any two points 41a and 41b on the display screen with two fingers. Then, as shown in FIG. 4B, the two touch positions are moved to draw straight lines in the directions of arrows 42a and 42b, respectively, and the interval between the two touch positions is narrowed. As a result, as shown in FIG. 4B, the scale displayed on the display monitor 16 is one step smaller than the map 30 without changing the center point of the display screen (the position of the vehicle position mark 31). Switch to wide area map 40.

  With reference to FIGS. 5A and 5B, an operation for changing a map to a detailed map will be described. As shown in FIG. 5A, the user touches two arbitrary points 51a and 51b on the display screen with two fingers. Then, as shown in FIG. 5B, the two touch positions are moved to draw straight lines in the directions of the arrows 52a and 52b, respectively, and the interval between the two touch positions is widened. As a result, as shown in FIG. 5B, the map displayed on the display monitor 16 is reduced in scale by one step from the map 30 without changing the center point of the display screen (the position of the vehicle position mark 31). Switch to large detailed map 50.

  Next, map display processing of the navigation device 1 by the touch operation of two-point touch will be described with reference to the flowcharts of FIGS. 6 and 7 are executed in the control circuit 11 by a program that starts when a map is displayed on the display monitor 16.

  In step S601, the touch position of the touch panel 21 is detected based on the touch position calculated by the touch panel control unit 110. In step S602, it is determined whether there are two touch positions. If there are two places, an affirmative determination is made in step S602, and the process proceeds to step S603. If there are no two places, that is, if the touch panel 21 is not touched, or if one or three or more touch positions are detected, a negative determination is made in step S602, and the process returns to step S601. In step S603, the two touch positions are stored in the RAM 13. In step S604, the touch position of the touch panel 21 is detected based on the touch position calculated by the touch panel control unit 110.

  In step S605, the detected touch position is compared with the touch position stored in the RAM 13 in step S603 to determine whether the touch position has moved. If it has moved, an affirmative determination is made in step S605, and the process proceeds to step S606. If the two places have not moved, a negative determination is made in step S605, and the process returns to step S604. In step S606, it is determined whether the moved touch position is one place. In the case of one place, an affirmative determination is made in step S606, and the process proceeds to step S607. In the case of two places, a negative determination is made in step S606, and the process proceeds to step S701 in FIG. In step S607, the map is scrolled by a predetermined amount in the moving direction of the touch position. In step S608, the touch position stored in the RAM 13 is erased. Then, return to the start.

  In step S701 in FIG. 7, the distance between the two touch positions stored in the RAM in step S603 and the distance between the two touch positions detected in step S604 are calculated. In step S702, the calculated distance between the two touch positions is compared, and the distance between the two touch positions detected in step S604 is greater than the distance between the two touch positions stored in the RAM in step S603. judge. If it has increased, an affirmative determination is made in step S702 and the process proceeds to step S703. If it becomes smaller or does not change, a negative determination is made in step S702, and the process proceeds to step S704. In step S703, the map displayed on the display monitor 16 is switched to a detailed map in which the scale factor is increased by one step without changing the center point of the display screen. Then, the process proceeds to step S608 in FIG.

  In step S704, the distance between the two touch positions calculated is compared, and the distance between the two touch positions detected in step S604 is smaller than the distance between the two touch positions stored in the RAM in step S603. judge. If it becomes smaller, an affirmative decision is made in step S704 and the operation proceeds to step S705. If not changed, a negative determination is made in step S704, and the process proceeds to step S608 in FIG. In step S705, the map displayed on the display monitor 16 is switched to a wide area map whose scale is reduced by one step without changing the center point of the display screen. Then, the process proceeds to step S608 in FIG.

The navigation device 1 according to the above embodiment has the following operational effects.
(1) An operation instruction related to map display can be input by touch trajectories at two touch positions. Therefore, variations of touch operations can be increased, and many operations for map display can be performed by touch operations that draw points and diagrams while touching.

(2) Regardless of the position of the touch operation on the touch panel 21, if a touch operation is performed on the touch panel 21, an operation instruction regarding map display can be input, so that the operation can be performed without looking at the display screen.

(3) When a touch trajectory in which the touch position of one of the two touch positions on the display screen on which the map is displayed does not move and the touch position of the other point moves is input, The map is scrolled in the direction in which the touch position of the other point moves. Therefore, the map displayed on the display screen can be scrolled by a simple operation. In addition, the operation by one touch position on the display screen on which the map is displayed can be allocated to other functions, and convenience is improved.

(4) When a touch trajectory that moves so that the two touch positions on the display screen on which the map is displayed is input, the display is switched to a map display with a small scale ratio, and the two touch positions are separated. When a moving locus of touch is input, the display is switched to a map with a large scale. Therefore, the scale ratio of the map displayed on the display screen can be changed by a simple operation. In addition, the operation by one touch position on the display screen on which the map is displayed can be allocated to other functions, and convenience is improved.

The navigation apparatus 1 of the above embodiment can be modified as follows.
(1) Although a detailed map or a wide area map is displayed without changing the center point of the display screen by a touch operation, a point where the display position does not change even when the scale of the map is changed may be designated. For example, as shown in FIG. 8 (a), two places 81a and 81b are touched on the display screen. One of the points 81a is a point to be displayed on the display screen even if the scale of the map is changed. As shown in FIG. 8B, the user moves the other touch position so as to draw a straight line in the direction of the arrow 82 with the touch position 81a fixed, and increases the distance between the two touch positions. As a result, as shown in FIG. 8B, the detailed map 50 is displayed without changing the display position of the point on the map corresponding to the touch position 81a. Conversely, when the touch position 81a is fixed and the other touch position is moved to draw a straight line and the distance between the two touch positions is reduced, the display position of the point on the map corresponding to the touch position 81a is changed. The wide area map is displayed without change. By doing in this way, even if the scale of the map changes, the point on the map that is always desired to be displayed does not deviate from the display screen.

(2) When a touch operation for displaying a detailed map is performed, a detailed map with a scale ratio that has been increased by one step is displayed on the display monitor. However, an enlargement ratio of the detailed map can be specified by the touch operation. Good. For example, as shown in FIG. 9A, the center position 91 of the detailed map to be displayed is touched and specified, and the area 92 to be displayed as the detailed map is drawn with the center position 91 touched. Specify with a simple touch operation. Then, when the finger that has been touched is released, the detailed map 50 having the largest scale ratio among the detailed maps including the range 92 with the center position 91 as the center is displayed on the display monitor 16. Since the detailed map 50 can be displayed and the display range specified by a single touch operation, convenience is improved. That is, the smaller the size of the frame, the larger the enlargement ratio. The frame is not limited to a circle but may be a rectangle.

(3) Although the map 30 is scrolled by a predetermined amount by the touch operation, the moving distance of the scroll may be designated. For example, as shown in FIG. 10A, two places 101a and 101b on the display screen are touched to specify the scroll amount. At this time, the distance between the two touch positions 101a and 101b is the designated scroll amount. Once the touch is stopped, as shown in FIG. 10B, the direction 102 in which the map 30 is scrolled is designated by the same operation as the scroll touch operation in FIG. 3B. As a result, as shown in FIG. Scrolling is performed by a scroll amount (distance between the two touch positions 101a and 101b) specified in the direction of the arrow 103, which is the same direction as the arrow 102. When scrolling the map 30, the amount of scrolling can also be specified by a touch operation, which improves convenience.

(4) An operation for inputting an instruction by a touch operation for drawing a diagram while touching is not limited to an operation related to map display as long as the operation is related to the function of the navigation device. For example, operations related to route search such as destination setting by genre search may be performed by touch operation. In the destination search mode, when any two points 104a and 104b on the display screen are touched as shown in FIG. 11A, a list 105 for searching the destination for a genre as shown in FIG. 11B. Appears on the display screen. Here, the genre search is a search by selecting a facility to be set as a destination from the genre of the facility. When selecting a genre and setting a destination, it is necessary to display a desired genre in the list 105. In such a case, as shown in FIG. 12, while touching two places, the touch position is moved as if to draw a straight line in the direction of scrolling the list (direction of arrow 121). As a result, as shown in FIG. 12, the list 105 is scrolled in the direction of the arrow 122 that is the same direction as the arrow 121. After scrolling, if a genre displayed in the list 105 is touched, a desired genre can be selected. By doing in this way, the genre search of the destination can be performed with a simple operation.

(5) You may enable it to perform operation which registers a memo in the facility displayed on the map 30 by touch operation which draws a diagram while touching. For example, as shown in FIG. 13A, another touch position is moved downward (in the direction of arrow 132) while touching a facility 131 for registering a memo. As a result, as shown in FIG. 13B, a memo input screen 133 is displayed on the display screen. The user can input a memo by handwriting on the memo input screen 133. For example, as shown in FIG. 13B, “Monday sale day” and a memo 134 are input. When the registration button 135 displayed on the memo input screen 133 is touched, the memo 134 input by handwriting is recognized by the character recognition unit 111 and stored in the RAM 13 in association with the touched facility 131. After that, when the facility 131 displayed on the display screen is touched as shown in FIG. 14A, the memo 134 stored in association with the facility 131 is read from the RAM 13 in the control circuit 11, and FIG. As shown, the memo 134 is displayed on the display screen. Since a memo can be input in association with a facility by a simple touch operation, convenience is high.

(6) The number of touch positions when performing a touch operation is not limited to two as long as it is plural. For example, as shown in FIG. 15, when any three points (151a to 151c) on the display screen are touched, the audio device provided in the vehicle starts playing, and audio information 152 regarding the performance is displayed on the display screen. You may be made to do.

(7) The touch panel device is not limited to the touch panel device 19 in the embodiment of the present invention as long as the touch panel device can detect a plurality of touch positions.

  The present invention is characterized in that a plurality of touch operations on the display screen in the display monitor, or operations of the navigation device are executed based on the operation trajectory. The embodiment is not limited at all.

The correspondence between the elements of the claims and the embodiments will be described.
The input means of the present invention corresponds to the control circuit 11 and the touch panel device 19, and the execution means corresponds to the control circuit 11. The scroll amount designation means corresponds to the control circuit 11 and the touch panel device 19, and the route search means corresponds to the control circuit 11. The destination search means and the memo input means correspond to the control circuit 11 and the touch panel device 19, and the memo storage means corresponds to the control circuit 11 and the RAM 13. The facility selection means corresponds to the control circuit 11 and the touch panel device 19, and the memo display means corresponds to the control circuit 11 and the display monitor 16. In addition, the above description is an example to the last, and when interpreting invention, it is not limited to the correspondence of the component of said embodiment and the component of this invention at all.

It is a block diagram which shows the structure of the navigation apparatus of embodiment of this invention. It is a figure for demonstrating a touchscreen apparatus. It is a figure for demonstrating the scroll operation of a map. It is a figure for demonstrating operation which changes a map into a wide area map. It is a figure for demonstrating operation which changes a map into a detailed map. It is a flowchart for demonstrating the map scroll process in embodiment of this invention. It is a flowchart for demonstrating the map scale ratio change process in embodiment of this invention. It is a figure for demonstrating operation which designates the point which fixes a display position and changes a map to a detailed map. It is a figure for demonstrating operation which designates a display range and changes a map into a detailed map. It is a figure for demonstrating operation which designates a scroll amount and scrolls a map. It is a figure for demonstrating operation which displays the list | wrist for performing a genre search on a display screen. It is a figure for demonstrating operation which scrolls the list | wrist for performing a genre search. It is a figure for demonstrating operation which registers a memo in the plant | facility displayed on the display screen. It is a figure for demonstrating operation which displays the memo registered in the plant | facility displayed on the display screen. It is a figure for demonstrating operation which starts the performance of an audio apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 11 Control circuit 13 RAM
16 Display monitor 19 Touch panel device 21 Touch panel 110 Touch panel control unit 111 Character recognition unit

Claims (3)

A display monitor provided with a touch panel device for detecting a plurality of touch positions;
Input means for inputting at least one locus of touch at a plurality of touch positions on the display screen in the display monitor;
Execution means for executing various operations based on a trajectory of at least one touch at a plurality of touch positions input by the input means;
A map is displayed on the display monitor,
The execution means includes scroll amount designation means for designating an interval between two touch positions on the display screen as a scroll amount of the map,
When the execution means inputs a touch trajectory in which the touch position of one of the two touch positions on the display screen does not move and the touch position of the other point moves by the input means Is a navigation device characterized in that the map is scrolled by the scroll amount specified by the scroll amount specifying means in the direction in which the touch position of the other point moves . The navigation device according to claim 1, wherein
The execution means displays a map with a small scale when the input means inputs a touch trajectory that moves the two touch positions on the display screen closer to the touch position on the other side. A navigation device characterized by switching. 2. The navigation device according to claim 1, wherein the execution unit inputs a touch trajectory in which the two touch positions on the display screen are moved away from the other-side touch positions by the input unit. Is a navigation device characterized by switching to display of a map with a large scale ratio.

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