JP2008045914A - Navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To input by more intuitive operation, in a navigation device. <P>SOLUTION: This navigation device is equipped with an inclination detection means for detecting inclination of a display, and a display means for differentiating a content to be displayed on the display according to the inclination of the display. For example, when the inclination of the display is in the first range, plane map display is performed, and when the inclination of the display is in the second range, bird's eye map display may be performed. Furthermore, a menu having a plurality of choices is displayed, and when inclination in a prescribed range is detected, scroll or page transition may be performed corresponding to the inclination direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a navigation device, and more particularly to an in-vehicle navigation device.

  A normal vehicle-mounted navigation apparatus accepts input via devices such as a joystick, dial switch, touch panel, and remote controller. The user needs to perform an operation such as pressing a switch or turning a dial switch.

JP 2000-55693 A

  By the way, from the viewpoint of improving the usability, there is a demand for an in-vehicle navigation device capable of performing input by a more intuitive operation rather than a complicated operation such as pressing a switch or turning a dial switch.

  The present invention has been made to solve the above-described problem, and an object of the present invention is to enable input by a more intuitive operation in a navigation device.

  In order to solve the above problems, in the present invention, the user's input is accepted and the display content is changed according to the tilt of the display.

  For example, the navigation device of the present invention includes an inclination detection unit that detects the inclination of the display, and a display unit that changes the content displayed on the display according to the inclination of the display.

  The display means may perform planar map display when the display tilt is in the first range, and perform bird's-eye view map display when the display tilt is in the second range.

  The display unit may display a menu having a plurality of options, and when the tilt detection unit detects a tilt within a predetermined range, scrolling or page transition may be performed according to the tilt direction.

  An embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic configuration diagram of an in-vehicle navigation device 100 to which an embodiment of the present invention is applied. As shown in the figure, the in-vehicle navigation device 100 includes an arithmetic processing unit 1, a display unit 2, a storage device 3, a voice input / output device 4, an input device 5, a wheel speed sensor 6, and a gyro sensor 7. , A GPS (Global Positioning System) receiver 8.

  The arithmetic processing unit 1 is a central unit that performs various processes. For example, the current position is detected based on information output from the various sensors 6 and 7 and the GPS receiver 8. In addition, graphics information is generated to display an image on the display 2.

  The display unit 2 includes a display 21 such as a liquid crystal display device and an inclination detection device 22 that detects the inclination of the display 21. The display 21 is a unit that displays graphics information generated by the arithmetic processing unit 1.

  FIG. 2 is an external view of the display unit 2. The display 21 is installed on the console panel CP of the vehicle by the support member 23. As shown in FIG. 3, the support member 23 supports the display 21 so that the display 21 can be displaced in three axial directions and can be displaced in parallel to the display surface. When the display 21 is arranged in a three-dimensional space so that the y-axis is vertical, the x-axis is horizontal, and the z-axis is wide (the depth of the display 21), the x-axis rotation is called pitch rotation, and the y-axis The rotation is called yaw rotation, and the z-axis rotation is called roll rotation. Moreover, the parallel movement with respect to the display surface means a displacement in the z-axis direction.

  For example, as shown in FIG. 2, the support member 23 is fixed to the console panel CP of the vehicle, and the fixing member 231 has a three-axis direction rotation and a front-rear parallel movement. A rotating member 232 that is rotatably connected to the rotating member 232, a hinge member 234 that is connected to the rotating member 232 via a hinge mechanism 233, and a display that supports the display 21 from the back by being connected to the hinge member 234 so as to be rotatable and slidable. And a back surface fixing member 235. The rotating member 232 enables the yaw rotation of the display 21. The hinge mechanism 233 enables the pitch rotation of the display 21. Since the back surface fixing member 235 is rotatably connected to the hinge member 234, the display 21 can be rotated. Further, since the back surface fixing member 235 is slidably connected to the hinge member 234, the back surface fixing member 235 can be translated with respect to the display surface of the display 21.

  An encoder (not shown) for detecting displacement is installed on the members constituting the support member 23. For example, the rotating member 232 includes an encoder that outputs a pulse corresponding to the amount of rotation of the rotating member 232 and an encoder that outputs a pulse corresponding to the amount of displacement of the hinge member 234. Further, the back support member 235 includes an encoder that outputs a pulse corresponding to the amount of rotation and an encoder that outputs a pulse corresponding to the amount translated in the front-rear direction.

  The tilt detection device 22 detects the displacement of the members constituting the support member 23 and detects the pitch, yaw, roll, and parallel movement of the display 21. For example, the output of an encoder installed on a member constituting the support member 23 is received, and the direction and amount of pitch rotation, yaw rotation, roll rotation, and parallel movement of the display 21 are obtained. In addition, even if it is not the method of using an encoder, as long as the inclination detection apparatus 22 can detect the displacement of the display 21, you may use another means.

  Returning to FIG.

  The storage device 3 includes a storage medium such as a CD-ROM, DVD-ROM, HDD, or IC card. This storage medium stores map data used for drawing a map and searching for a route. The map data includes link data (link data) that constitutes a road on the map. In the link data, for each code (link ID) for identifying a link, coordinates of a start node and an end node, a road type, a link length, information on a link to be connected, and the like are stored.

  Further, the map data includes three-dimensional data (polygon data) of components on the map used when drawing a three-dimensional bird's-eye view. Polygon data is a set of three-dimensional coordinates of vertices of a simple polygon such as a triangle. The polygon data includes the positions of representative points that are used as a reference when placing a three-dimensional object on a map. If the three-dimensional object defined by the polygon data is arranged in a predetermined direction so that the representative point is at a predetermined coordinate position, the actual arrangement of the building can be reproduced.

  The voice input / output device 4 includes a microphone, acquires voice spoken by the user, and transmits the voice to the arithmetic processing unit 1. Further, the message to the user generated by the arithmetic processing unit 1 is converted into an audio signal and output.

  The input device 5 is a unit that receives instructions from the user. The input device 5 includes a hard switch such as a scroll key and a scale change key, a joystick, a touch panel pasted on a display, and the like.

  The sensors 6 and 7 and the GPS receiver 8 are used for detecting the current location (vehicle position) by the vehicle-mounted navigation device 100.

  FIG. 4 is a diagram illustrating a hardware configuration example of the arithmetic processing unit 1.

  As illustrated, the arithmetic processing unit 1 has a configuration in which devices are connected by a bus 32. The arithmetic processing unit 1 includes a CPU (Central Processing Unit) 21 that executes various processes such as numerical calculation and control of each device, and a RAM (Random Access Memory) that stores map data, arithmetic data, and the like read from the storage device 3. ) 22, a ROM (Read Only Memory) 23 for storing programs and data, a DMA (Direct Memory Access) 24 for transferring data between the memories and between the memory and each device, and graphics drawing. In addition, a drawing controller 25 that performs display control, a video random access memory (VRAM) 26 that stores graphics image data, a color palette 27 that converts image data into RGB signals, and an A / D that converts analog signals into digital signals. Converter 28 and an SCI (Serial Communication Interface) that converts the serial signal into a parallel signal synchronized with the bus. ace) 29, a PIO (Parallel Input / Output) 30 that puts a parallel signal on the bus in synchronization with the bus, and a counter 31 that integrates the pulse signal.

  FIG. 5 is a functional block diagram of the arithmetic processing unit 1.

  As illustrated, the arithmetic processing unit 1 includes a main control unit 101, an input processing unit 102, an inclination detection unit 103, and a display processing unit 104. Note that a description of functional units related to navigation processing, which is the original basic operation of the vehicle-mounted navigation device 100, is omitted.

  The main control unit 101 is a central unit that controls each functional unit. For example, an input to the input device 5 is detected via the input processing unit 102, an instruction from the user is analyzed, and each functional unit is controlled so that a process corresponding to the instructed content is executed.

  The input processing unit 102 receives an input signal from the input device 5 and sends it to the main control unit 101.

  The tilt detection unit 103 detects the tilt (including pitch, yaw, roll, and parallel movement) of the display 21 via the tilt detection device 22 and sends it to the main control unit 101.

  The display processing unit 45 generates a drawing command for the display 2. For example, a map drawing command is generated so as to draw marks such as roads, other map components, current location, destination, and arrows for recommended routes with a specified scale and drawing method.

  The components and functions shown in FIG. 5 are achieved by the CPU 21 executing a predetermined program loaded into the memory 22.

  [Description of Operation] Next, the characteristic operation of the vehicle-mounted navigation device 100 of this embodiment will be described.

  The vehicle-mounted navigation device 100 according to the present embodiment can display a bird's-eye view map and a planar map. In addition, the display 21 has a function of switching the display between the bird's-eye view map and the planar map by rotating the display 21 in the pitch direction.

  The map display process is started when the input processing unit 102 receives a map display request from the user via the input device 5.

  When there is a request for displaying the bird's-eye view map, the main control unit 101 starts the bird's-eye view map display process. On the other hand, when there is a request for displaying a planar map, the processing for displaying the planar map is started. If the format of the map to be displayed is not specified, a bird's eye view around the current position is displayed as an initial setting.

  FIG. 6 is a flowchart of the bird's eye map display process.

  First, the main control unit 101 acquires the pitch rotation angle of the display 21 via the inclination detection unit 103 (S110). As shown in FIG. 3, the pitch rotation angle when the display 21 is set up vertically, that is, when the y-axis is vertical, the x-axis is horizontal, and the display surface is parallel to the xy plane, 0 °. That is, the pitch rotation angle when the display 21 is rotated about the x-axis and the display surface is horizontal is 90 °.

  Next, the main control unit 101 determines whether or not the pitch rotation angle exceeds a predetermined angle A1 (S111). The angle A1 can be an angle when the display 21 is nearly horizontal, for example, 80 to 90 °.

  When the pitch rotation angle> the angle A1 (Y in S111), that is, when the display 21 is in a horizontal state, the main control unit 101 ends the bird's-eye view map display process, Display processing starts.

  On the other hand, if the pitch rotation angle is not greater than the angle A1 (N in S111), the main control unit 101 updates the depression angle when drawing the bird's-eye view map using the pitch rotation angle (S112).

  FIG. 7 is a diagram for explaining a method of drawing a bird's eye view. The bird's-eye view is a diagram showing a state where the ground surface is viewed from a certain viewpoint. A bird's-eye view can be drawn if the position, azimuth, and depression angle (the angle between the direction of the line of sight when looking down at the ground surface and the horizontal plane at the eye level) are set. Therefore, the main control unit 101 uses the pitch rotation angle as a bird's-eye view depression angle. Note that the conversion of the three-dimensional image into the two-dimensional image can be performed by projecting the state of the ground surface onto a projection plane perpendicular to the line of sight.

  In the initial state, the main control unit 101 sets a position above the reference position (for example, a position 10 m above the current position) as a viewpoint. Further, the vehicle direction is set to a bird's eye view direction.

  Next, the main control unit 101 acquires the yaw rotation angle of the display 21 via the inclination detection unit 103 (S113).

  Then, the main control unit 101 changes the bird's-eye view direction (see “direction” in FIG. 7) using the yaw rotation angle (S114). Specifically, it is updated by adding the change amount of the yaw rotation angle to the current bird's-eye view direction.

  When the viewpoint position, bird's-eye direction, and depression angle are set in this way, the main control unit 101 generates a bird's-eye view map using the map data and displays it on the display 21 via the display processing unit 104. (S115). Note that a three-dimensional bird's-eye view map can be generated using polygon data. And it returns to S110 again and repeats a process.

  Next, planar map display processing will be described. FIG. 8 is a flowchart of a planar map display process.

  First, the main control unit 101 acquires the pitch rotation angle of the display 21 via the inclination detection unit 103 (S120).

  Next, the main control unit 101 determines whether or not the pitch rotation angle is less than a predetermined angle A2 (S121). The angle A2 can be an angle when the display 21 is close to a vertically standing state, that is, 0 to 10 °. Note that the angle A1 when switching from the bird's-eye view map to the horizontal map and the angle A2 when switching from the horizontal map to the bird's-eye map may be the same value, but may be different values. As shown in FIG. 7, it is preferable that angle A1> angle A2. In this way, once the display is switched to the planar map, the display cannot be switched to the bird's eye view map unless the display is raised to a predetermined angle. Moreover, once it switches to a bird's-eye view map, it can prevent it from switching to a plane map, unless a display is laid to a predetermined angle.

  Returning to FIG.

  When the pitch rotation angle is smaller than the angle A2 (Y in S121), that is, when the display 21 is in a nearly vertical state, the main control unit 101 ends the planar map display process and is shown in FIG. Start the bird's eye view display process.

  On the other hand, if the pitch rotation angle is not smaller than the angle A2 (N in S121), the main control unit 101 determines the scroll direction and speed of the planar map according to the pitch rotation angle (S122). Specifically, when the display surface is viewed from the front, when the direction of pitch rotation is such that the upper part of the display 21 is displaced forward and the lower part is displaced backward, the scroll direction is downward (downward). Scroll direction in which maps are displayed one after another). Conversely, when the direction of pitch rotation is such that the upper part of the display 21 is displaced backward and the lower part is displaced forward, the scroll direction is set to the upward direction (the scroll direction in which the upward map is displayed one after another). To do. Also, the scroll speed is set faster as the inclination with respect to the horizontal is larger (the difference from the horizontal is larger). The main control unit 101 may hold a table in which the pitch rotation angle is associated with the scroll direction and the scroll speed in advance and obtain the scroll direction and the speed using the table.

  Next, the main control unit 101 acquires the yaw rotation angle of the display 21 via the inclination detection unit 103 (S123).

  Then, the main control unit 101 determines the scroll direction and speed of the planar map according to the yaw rotation angle (S124). Specifically, when the direction of yaw rotation is such that the right end of the display 21 is displaced toward the front and the left end is displaced toward the back, the scroll direction is set to the left (the map in which the left direction is displayed one after another) Direction). Conversely, when the direction of yaw rotation is such that the right end of the display 21 is displaced to the back and the left end is displaced to the front, the scroll direction is the right direction (the scroll direction in which right-direction maps are displayed one after another). Set to. Also, the scroll speed is set faster as the inclination with respect to the horizontal is larger (the difference from the horizontal is larger). Note that the main control unit 101 may hold a table in which the yaw rotation angle is associated with the scroll direction and the scroll speed in advance and obtain the scroll direction and speed using the table.

  After determining the scroll direction and speed in this way, the main control unit 101 acquires a map in a range necessary for display from the map data, and scrolls and displays the planar map via the display processing unit 104 (S125). And it returns to S120 and repeats a process.

  The bird's-eye view map display process and the planar map display process have been described above. Next, it demonstrates more concretely using the transition diagram of a display screen.

  9 to 12 are screen transition diagrams when the display 21 is rotated in various directions. The state of the tilt of the display 21 is also shown in correspondence with the screen.

  FIG. 9 shows a state where the bird's-eye view map is switched to the planar map. First, it is assumed that the display 21 is arranged substantially vertically. As shown in the drawing, in the initial state, the main control unit 101 displays a bird's eye view map 411 with a depression angle of approximately 0 °.

  When the display 21 is tilted in the pitch direction, the main control unit 101 changes the bird's eye view depression angle to the pitch rotation angle. As a result, a bird's eye view 412 looking down from above is obtained.

  Further, when tilted in the pitch direction and the display 21 is laid almost horizontally, the main control unit 101 stops the bird's-eye view map display and switches to the plane map 413 for display.

  When the display 21 is set up almost vertically again, the main control unit 101 displays the bird's-eye view map 414.

  FIG. 10 is a screen transition diagram when there is a yaw rotation when performing a bird's-eye view map display.

  Initially, the display 21 is assumed to face the front. The main control unit 101 displays a bird's eye view 421 with the initially set direction (vehicle direction) as the bird's eye direction.

  When the main control unit 101 detects yaw rotation such that the left end portion of the display 21 is at the front and the right end portion is at the back, the main control unit 101 changes the bird's eye view direction to the left (counterclockwise direction). Then, a bird's eye view 422 viewed from the left is displayed.

  On the other hand, when detecting the yaw rotation such that the left end of the display 21 is at the back and the right end is at the front, the main control unit 101 changes the bird's-eye view direction to the right (clockwise direction). Then, a bird's eye view 423 viewed in the right direction is displayed.

  FIG. 11 is a screen transition diagram when the display 21 is tilted in the pitch direction when a planar map is being displayed.

  When the display 21 is substantially horizontal, the main control unit displays the stationary planar map 432 without scrolling. On the other hand, when there is a pitch rotation so that the upper part of the display 21 is at the front and the lower part is at the back, the display 21 is scrolled so that a downward map 431 is displayed. On the contrary, when the pitch is rotated so that the upper part of the display 21 is at the back and the lower part is at the front, the display 21 is scrolled so that an upward map 433 is displayed. Further, the scrolling speed is increased as the inclination from the horizontal position is increased.

  FIG. 12 is a screen transition diagram when the display 21 is tilted in the yaw direction when a planar map is being displayed.

  When the display 21 is substantially horizontal, the main control unit displays a stationary planar map 442 without scrolling. On the other hand, when the yaw rotation is performed so that the right end portion of the display 21 is in front and the left end portion is in the back, the display 21 is scrolled so that a map 441 in the left direction is displayed. Conversely, when the yaw rotation is performed so that the right end portion of the display 21 is at the back and the left end portion is at the front, the display 21 is scrolled so that a map 443 in the right direction is displayed. Further, the scrolling speed is increased as the inclination from the horizontal position is increased.

  Note that the main control unit 101 may change the scale of the map when detecting the parallel movement of the display 21 before and after. FIG. 13 is a screen transition diagram in such a case. The state of displacement of the display 21 is also shown in correspondence with the screen.

  The main control unit 101 detects a parallel movement on the display surface of the display 21 via the inclination detection unit 103. Then, the scale of the map is switched according to the direction of movement. As shown in FIG. 13, initially, a map 452 is displayed at a scale designated by the user (or an initially set scale). When the display surface of the display 21 is the front, and the display 21 is translated in front, the main control unit 101 increases the scale. That is, a more detailed map 451 is displayed. On the other hand, when the display 21 is translated inward, the main control unit 101 reduces the scale. That is, a wider area map 453 is displayed.

  Note that the scale may be changed when the plane map is displayed or when the bird's-eye view map is displayed.

  The embodiment of the present invention has been described above.

  According to the said embodiment, a user can be made to input by intuitive operation. That is, a display content change request can be input by simply moving the display without pressing a switch or turning the dial.

<Modification 1>
The present invention is not limited to the above embodiment. The above embodiment can be variously modified.

  For example, in the above-described embodiment, the case where the present invention is applied to the input operation at the time of map display has been described. The present invention is not limited to this, and may be applied to an input operation when a menu is displayed.

  FIG. 14 is a flowchart of menu display processing. FIG. 15 is a screen transition diagram in such a case.

  The main control unit 101 displays a list of a plurality of options 461m according to the set mode. Then, the user is allowed to select one option from the displayed options 461m. Therefore, the focus 461f is arranged in one of the options. Then, the list in which the focus is arranged is changed by scrolling the list without changing the position of the focus 461f on the screen. When a confirmation request is received from the user via the input device 5 or the like, the option at the focus position at that time is confirmed as the option selected by the user. Hereinafter, a scrolling method and a menu screen changing method will be described with reference to the flowchart of FIG.

  When the main control unit 101 detects rotation to the display 21 during display of the menu screen, the main control unit 101 acquires the angle (S130). For example, as shown in FIG. 15, when a menu screen 461 displaying a list of options vertically is displayed, rotation in the pitch direction is monitored, and when rotation is detected, a rotation angle is acquired. Then, the scroll direction and speed of the options corresponding to the acquired pitch rotation angle are determined (S131). Specifically, the main control unit 101 determines a scroll direction corresponding to the rotation direction in advance. Further, a scroll speed corresponding to the rotation angle (rotation angle from the reference position) is determined in advance. Then, the scroll direction and speed corresponding to the pitch rotation angle are specified. Further, the main control unit 101 monitors the parallel movement of the display 21 (S132). If there is parallel movement, the menu screen page is changed according to the direction (S133). For example, when the display 21 has the display surface as the front, when the display 21 is translated to the back, the page to be displayed is determined so as to transition to the next menu screen. When moving to the front, the page to be displayed is determined so as to shift to the previous menu screen. Then, the main control unit 101 displays the determined menu screen and scrolls the list with the determined scroll direction and speed (S134).

  Not limited to the examples shown in FIGS. 14 and 15, the confirmation request may be received by the parallel movement operation of the display 21. For example, the main control unit 101 arranges a focus 461f indicating a selection candidate in any of the options when the options are displayed as a list. And when the parallel movement to the back of the display 21 is detected, the option by which the focus is arrange | positioned is decided as a content which the user selected.

  Alternatively, the scroll request and the selection confirmation request may be distinguished depending on the rotation direction of the display. For example, when the main control unit 101 detects rotation in the pitch direction, the main control unit 101 scrolls the options displayed in the list. On the other hand, when the rotation in the yaw direction is detected, the option in which the focus 461f is arranged is determined as the option selected by the user.

  Further, a confirmation request may be received depending on the rotation angle. For example, when the main control unit 101 detects rotation in the pitch direction, if the rotation angle is within a predetermined range (for example, the inclination with respect to the horizontal is within 45 °), the main control unit 101 scrolls the list of options. If the angle exceeds a predetermined range (for example, the inclination with respect to the horizontal is 45 ° or more), the option in which the focus is arranged is determined as the option selected by the user.

<Modification 2>
The display 21 may be detachable from the main body of the in-vehicle navigation device 100. When detachable, information exchange between the main body and the display 21 can be performed by wireless communication. The in-vehicle navigation device has a function of detecting attachment / detachment of the display 21. In such a case, the display 21 includes a gyro sensor that can detect, for example, rotation in three axial directions in order to detect the tilt of the display 21. The inclination detection unit 103 detects pitch, yaw, roll, and forward / backward movement from the output of the gyro sensor.

  Thus, even when the user can move freely without fixing the display 21, as described above, the display of the bird's-eye view map and the planar map can be switched by the displacement operation to the display 21, or The depression angle and bird's eye view direction can be changed, the scroll direction and speed of the planar map, and the scroll direction and speed of the menu display can be changed. That is, when the display 21 is removed and the display 21 is approximately horizontal, a planar map can be displayed, so that the user can treat it as if it were a paper map.

  Furthermore, it can also be as follows.

  For example, as shown in FIG. 16, the main control unit 101 matches the orientation of the map to be displayed with the orientation of the display 21. Specifically, when the bird's-eye view map is displayed, the direction of the bird's-eye view (see “azimuth” in FIG. 7) is the direction perpendicular to the display surface of the display 21 and directed from the display surface to the back surface (in FIG. z direction). Therefore, first, when the main control unit 101 detects that the display 21 has been removed from the support member of the vehicle, the main control unit 101 uses the output of the gyro sensor in the three-axis direction of the display 21 to remove the display 21 from the support member. Find changes in orientation. The gyro sensor detects acceleration. If the acceleration is integrated with time, the speed can be obtained, and if the acceleration is further integrated with time, movement trajectories in the x-axis, y-axis, and z-axis directions are obtained. And the change of direction of the display 21 after removing from the support member of a vehicle is calculated | required. The orientation of the display 21 is obtained by adding the change in direction to the vehicle orientation obtained in the process of the current position calculation process. Then, an orientation (z-axis direction in FIG. 3) perpendicular to the display surface of the display 21 and from the display surface to the back surface is obtained, and the orientation is set as a bird's eye view orientation. In this way, as shown in FIG. 16, for example, at a certain place 470, if the user holds the display 21 with both hands so that the display surface is in front and faces the north direction, the bird's-eye view map 471 in the north direction is displayed. Will come to be.

  Further, when a planar map is displayed, the reference direction (for example, northwest) of the map displayed on the display 21 can be made to coincide with the actual reference direction (for example, northwest). For example, the main control unit 101 obtains the orientation of the display 21 as described above. Then, the azimuth in the upper direction of the display 21 (the y-axis direction in FIG. 3) is obtained. And when displaying a planar map, it adjusts and displays so that the calculated | required azimuth | direction may become on the display 21. FIG. For example, when the upper part of the display 21 faces northwest, a planar map is displayed so that the top of the display 21 is northwest. In this way, when the user holds the display 21 so as to be almost horizontal and the top is northwest, a flat map arranged on the northwest is displayed on the display 21. Even if the display 21 is rotated in the roll direction, the orientation of the displayed map matches the actual orientation. Therefore, it is easy for the user to see the map on the display 21 because it matches the actual orientation.

  Further, depending on whether or not the display 21 is removed from the support member of the vehicle, it may be set whether or not to accept an input from the user by the rotation of the display 21 as described above. That is, when the display 21 is mounted on a vehicle support member, the main control unit 101 accepts an input from the user based only on an input from a hard switch or the like regardless of the inclination of the display 21. And the process according to the received content is performed. On the other hand, when the display 21 is removed from the support member of the vehicle, the main control unit 101 determines whether the display 21 has an inclination (pitch, yaw, roll, forward / backward movement, etc.) from the user. Accepts input and changes the display contents according to the accepted contents.

FIG. 1 is a schematic configuration diagram of an in-vehicle navigation device to which an embodiment of the present invention is applied. FIG. 2 is an external view of the display unit. FIG. 3 is a diagram for explaining the rotation direction of the display. FIG. 4 is a diagram illustrating a hardware configuration of the arithmetic processing unit 1. FIG. 5 is a diagram illustrating a functional configuration of the arithmetic processing unit 1. FIG. 6 is a flowchart of the bird's-eye view map display process. FIG. 7 is a diagram for explaining a bird's eye map generation method. FIG. 8 is a flowchart of the planar map display process. FIG. 9 is a screen transition diagram. FIG. 10 is a screen transition diagram. FIG. 11 is a screen transition diagram. FIG. 12 is a screen transition diagram. FIG. 13 is a screen transition diagram. FIG. 14 is a flowchart of the menu display process. FIG. 15 is a screen transition diagram. FIG. 16 is a diagram illustrating an example of a display screen.

Explanation of symbols

100: In-vehicle navigation device,
DESCRIPTION OF SYMBOLS 1 ... Arithmetic processing part, 2 ... Display part, 3 ... Memory | storage device, 4 ... Voice input / output device, 5 ... Input device, 6 ... Wheel speed sensor, 7 ... Gyro, 8 ... GPS receiver, 21 ... CPU, 22 ... RAM, 23 ROM, 24 DMA, 25 Drawing controller, 26 VRAM, 27 Color palette, 28 A / D converter, 29 SCI, 30 PIO, 31 Counter

Claims (15)

A navigation device,
Tilt detection means for detecting the tilt of the display;
A navigation device comprising: display means for changing contents displayed on the display in accordance with an inclination of the display. The navigation device according to claim 1,
The display means includes
If the tilt of the display is in the first range, display a plane map,
A navigation apparatus, wherein a bird's-eye view map is displayed when the inclination of the display is in the second range. The navigation device according to claim 2,
The display means includes
If you ’re doing a bird ’s eye view,
A navigation apparatus, wherein a depression angle of a bird's eye view is changed according to the inclination of the display. The navigation device according to claim 2,
The display means includes
If you ’re doing a bird ’s eye view,
A navigation device characterized in that a bird's eye view direction is changed in accordance with an inclination of the display. The navigation device according to claim 2,
The display means includes
If you are doing a flat map display,
A navigation device characterized in that a scroll direction is changed in accordance with a tilt direction of the display. The navigation device according to claim 2,
A translation detecting means for detecting translation relative to the display surface of the display;
The display means includes
A navigation apparatus characterized in that when the parallel movement detecting means detects a parallel movement, the scale of the map is changed. The navigation device according to claim 1,
The display means includes
Displays a menu with multiple options,
A navigation device, wherein when the tilt detection means detects a tilt within a predetermined range, scrolling or page transition is performed according to the tilt direction. The navigation device according to claim 7,
The display means includes
A navigation device, wherein a scroll speed or a page transition speed is changed according to a magnitude of inclination of the display. The navigation device according to claim 7,
A translation detecting means for detecting translation relative to the display surface of the display;
The display means includes
A navigation device, wherein the screen is changed when the translation displacement detecting means detects a translation. The navigation device according to claim 1,
The inclination detecting means includes
An inclination is detected from a displacement of a member supporting the display. The navigation device according to claim 1,
The display includes a gyro sensor,
The navigation device, wherein the tilt detection means detects the tilt of the display using an output of the gyro sensor. The navigation device according to claim 11,
The display device is configured to be detachable from a navigation device body. A navigation device according to claim 12, comprising:
The tilt detection means obtains the orientation of the display from the output of the gyro sensor,
The display means includes
A navigation apparatus, wherein a bird's-eye view map is displayed with a bird's-eye direction corresponding to the direction of the display. A navigation device according to claim 12, comprising:
The tilt detection means obtains the orientation of the display from the output of the gyro sensor,
The navigation device according to claim 1, wherein the display unit displays a planar map by associating a reference orientation of a plan view with an orientation of the display. A display method of a navigation device,
A tilt detection step for detecting the tilt of the display;
A display method for a navigation apparatus, comprising: a display step of changing a content to be displayed on the display according to an inclination of the display.

Images