JP2008039402A - Navigation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation apparatus for promoting communications between a user on a driver's seat and a user on an assistant passenger's seat who are watching different images on the same display monitor. <P>SOLUTION: After a user previously specifies a location 62 in Figure 6 (a), the user registers a note 61. After the registration of the note, a map screen displaying the periphery of the location of a self-vehicle is displayed on a display screen viewed from the side of the driver's seat, and terrestrial digital broadcasting is displayed on a display screen viewed from the side of the assistant passenger's seat. When the vehicle approaches the registered location within a prescribed distance, the note 61 is displayed on the display screen viewed from the side of the driver's seat. The note 61 is superposed on an image 64 of terrestrial digital broadcasting and also displayed on the display screen viewed from the side of the passenger's seat. It is possible to provide a common topic for the user on the driver's seat and the user in the passenger's seat in this way. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a navigation apparatus including a display monitor in which a display screen viewed from one direction and a display screen viewed from the other direction are different, or two display monitors.

A display in which an image that is visible depending on a viewing direction of a viewer is known as a conventional technique (Patent Document 1). By providing this display in the navigation device, the image seen in the driver's seat and the image seen in the passenger seat can be made different. For example, a map screen around the vehicle can be displayed for a driver seat user, and a television image or the like can be displayed for a passenger seat user. The driver seat user can concentrate on driving, while the passenger seat user can enjoy various images while the vehicle is moving.
JP-A-2005-71286

  By providing the navigation device with the display described in Patent Document 1, there is an advantage as described above. However, since the driver seat user and the passenger seat user see a completely different display screen, the driver seat user There is a problem that it is difficult to establish communication between the passenger and the passenger at the passenger seat.

(1) The navigation device of the invention of claim 1 is a display monitor in which a display screen seen from one direction is different from a display screen seen from the other direction, and when the vehicle travels in a pre-registered location or registered in advance. Display control means for displaying a pre-registered memo on a display monitor when approaching within a predetermined distance from the point, and the display control means is at least one of a display screen visible from one direction and a display screen visible from the other direction A memo registered in advance is displayed.
(2) The invention according to claim 2 is the navigation device according to claim 1, wherein the display control means displays a memo different from the memo displayed on the display screen viewed from the other direction on the display screen viewed from one direction. It is characterized by that.
(3) The invention of claim 3 is the navigation device according to claim 1 or 2, wherein the display control means is provided in advance on one or both of the display screen visible from one direction and the display screen visible from the other direction. It has a display screen selection means for selecting a memo display screen so as to display a registered memo.
(4) The invention according to claim 4 is the navigation device according to any one of claims 1 to 3, wherein the display control means displays a map on the display screen visible from the driver's seat side as one direction and an assistant as the other direction. An image stored in a digital terrestrial broadcast or a recording medium is displayed on a display screen that can be seen from the seat side.
(5) The navigation device of the invention of claim 5 includes two display monitors and two display monitors when the vehicle travels in a pre-registered point or approaches within a predetermined distance from the pre-registered point. Display control means for displaying a memo registered in advance in at least one of the above is provided.
(6) The invention of claim 6 is the navigation apparatus according to claim 5, wherein the display control means displays different memos on each of the two display monitors.
(7) The invention of claim 7 is the navigation device according to claim 5 or 6, wherein the display control means displays the memo registered in advance on one or both of the two display monitors. It has a display screen selection means for selecting a display screen.
(8) The invention according to claim 8 is the navigation apparatus according to any one of claims 5 to 7, wherein the display control means includes a map on one of the two display monitors and a digital terrestrial broadcast or recording medium on the other. The video stored in is displayed.
(9) The invention according to claim 9 is the navigation device according to any one of claims 1 to 8, further comprising input means for inputting a memo with handwritten characters, wherein the display control means is input by the input means. It is characterized by displaying a memo.
(10) The invention according to claim 10 is the navigation device according to any one of claims 1 to 9, wherein the display control means travels at a pre-registered point at a date and time pre-registered by the vehicle, or When approaching within a predetermined distance from a pre-registered point, a pre-registered memo is displayed on the display monitor.

  According to the present invention, a memo is registered in advance in association with a position on a map, and when the vehicle approaches or reaches the position, the memo is displayed on two display screens or two display monitors. It was made to display on at least one of. Therefore, a common topic can be provided to users who are viewing different videos.

  A configuration of a navigation apparatus according to an embodiment of the present invention is shown in FIG. In the navigation device 1, a road map around the vehicle position can be displayed on the display screen seen from the driver's seat side, and a digital terrestrial broadcast video can be displayed on the display screen seen from the passenger seat side. Further, it is possible to input characters by handwriting the characters on the display screen of the display monitor 16. The navigation device 1 includes a control circuit 11, a ROM 12, a RAM 13, a current position detection device 14, a screen memory 15, a display monitor 16, a display monitor control unit 17, an input device 18, a speaker 19, a touch panel 110, a disk drive 112, and a character recognition unit 114. And a terrestrial digital broadcast receiver 116. The disc drive 112 is loaded with a DVD-ROM 113 in which map data is recorded.

  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 113, 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.

  When the destination is set, the navigation device 1 performs a route calculation from the current location detected by the GPS sensor 14c to the destination based on a predetermined algorithm. The route thus obtained (hereinafter referred to as a recommended route) is displayed on the screen separately 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 image memory 15 stores image data to be displayed on the display monitor 16. This image data includes road map drawing data and various graphic data, which are appropriately generated based on the map data stored in the DVD-ROM 113. The navigation apparatus 1 can perform map display using the image data generated in this way.

  The disk drive 112 reads map data for displaying a map from the loaded DVD-ROM 113. The map data includes map display data, route search data, and the like. The map display data and the route search data include road link information and node information stored in the map data. 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 map data may be read from a recording medium other than the DVD-ROM 113, such as a CD-ROM or a hard disk.

  The terrestrial digital broadcast receiving unit 116 receives the terrestrial digital broadcast and outputs the content of the received broadcast to the display monitor control unit 17 and the speaker 19. Details of the terrestrial digital broadcast receiving unit 116 will be described later.

  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. Further, the display monitor 16 outputs video information of the terrestrial digital broadcast received by the terrestrial digital broadcast receiver 116. Two images are displayed on the display monitor 16, and one image can be seen from the driver's seat side and another image can be seen from the passenger seat side by the optical system separation element arranged on the front surface of the liquid crystal panel of the display monitor 16. The display monitor control unit 17 generates a display image so that one image can be seen from the driver seat side and another image can be seen from the passenger seat side. For example, the video signal of the display monitor 16 is generated so that a road map near the vehicle position can be seen from the driver's seat side, and a digital terrestrial broadcast video can be seen from the passenger seat side.

  The input device 18 has operation keys for the user to set various commands, and is realized by an operation panel, 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. Further, by operating the input device 18, it is possible to select a broadcast station received by the terrestrial digital broadcast receiving unit 116.

  The speaker 19 provides various information such as a map near the vehicle position to the occupant by voice based on various information such as map data. The speaker 19 outputs the terrestrial digital broadcast audio information received by the terrestrial digital broadcast receiver 116.

  The touch panel 110 is a transparent touch switch laminated on the surface of the display monitor 16, and an image displayed on the display monitor 16 is displayed through the touch panel 110. The touch panel 110 sends a signal corresponding to the operation position on the touch panel 110 to the touch panel control unit 111, and the touch panel control unit 111 calculates the pressed position of the touch panel 110.

  When the display screen of the display monitor 16 is pressed, the touch panel 110 is pressed. The touch panel 110 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 pressed with a finger, the touch panel 110 is pressed, and the touch position is calculated by the touch panel control unit 111. The calculated pressed position is output to the control circuit 11. The control circuit 11 sets a destination at the pressed position and executes processing defined in various buttons and display menus. In addition, a character handwritten on the touch panel 110 can be input to the navigation device 1.

  The character recognition unit 114 recognizes characters drawn by handwriting by pressing the touch panel 110. Handwritten characters are recognized as follows. The input pattern of the hand drawn character is collated with the character pattern registered in the dictionary 115. Then, the character pattern having the highest similarity is extracted. A handwritten character is recognized on the assumption that the character related to the extracted character pattern corresponds to a character input by handwriting.

  Next, the terrestrial digital broadcast receiving unit 116 will be described with reference to FIG. The terrestrial digital broadcast receiving unit 116 includes antennas 21 and 22, an antenna switching unit 23, a tuner 24, a demodulation unit 25, a decoding unit 26, a decoding unit RAM 27, an NTSC (National Television System Committee) encoding unit 28, and an audio signal DA conversion unit 29. And a communication unit 210. Here, the part of the broken line 211 is called a front end part, and the part of the broken line 212 is called a back end part.

  Antennas 21 and 22 receive terrestrial digital broadcasting. The antenna switching unit 23 compares the electric field strength of the radio wave received by the antenna 21 with the electric field strength of the radio wave received by the antenna 22 and switches to an antenna having a high electric field strength. The tuner 24 has a function of setting a broadcast channel received by the antennas 21 and 22, a function of detecting electric field strength of signals received by the antennas 21 and 22, and a function of converting an analog signal into a digital signal. The demodulator 25 has a function of digitally demodulating the signal converted into a digital signal by the tuner 24.

  The decoding unit 26 performs a decompression process on the terrestrial digital wave signal, thereby decompressing and extracting the digital video signal and the digital audio signal. The decoding unit RAM 27 has a function as a work area for compression / decompression processing in the decoding unit 26. The NTSC encoding unit 28 converts the digital video signal into an NTSC analog output video signal and outputs it to the display monitor control unit 17. The audio signal DA conversion circuit 29 converts the digital audio signal extracted by the broadcast decoding unit 26 into an analog audio signal and outputs the analog audio signal to the speaker 19. The communication unit 210 inputs a command signal from the control circuit 11 and controls the decoding unit 26.

  Next, the memo display process in the navigation device 1 according to the embodiment of the present invention will be described with reference to FIGS.

  When the vehicle approaches a predetermined position, the driver's seat user or passenger seat user displays the memo as follows in order to show a common memo to the driver's seat user and the passenger's seat user. Register the location and memo contents.

  The memo registration operation will be described with reference to FIGS. In this description, the driver seat user and the passenger seat user are simply referred to as users. When the user selects the memo setting mode from a menu screen (not shown), a map 30 is displayed on the display screen of the display monitor 16 as shown in FIG. The user operates the input device 18 to scroll the map 30 and displays the position for displaying the memo on the display screen. And the position which displays a memo is pressed, and the position which displays a memo is designated.

  When a position for displaying a memo is designated, a memo input screen 41 is displayed as shown in FIG. The user inputs a memo by handwriting on the memo input screen 41 using a finger or a touch pen. Here, it is assumed that the user inputs “the night view is beautiful”. On the memo input screen 41, a registration button 42 and a cancel button 43 are displayed. When the registration button 42 is pressed, the handwritten character input on the memo input screen 41 is recognized. When the cancel button 43 is pressed, the handwritten character input on the memo input screen 41 is canceled and the character input can be performed again.

  When the registration button 42 is pressed, display selection buttons 51 to 53 are displayed on the map 30 as shown in FIG. When the “display on the driver's seat side” button 51 among the display selection buttons 51 to 53 is pressed, the input memo is displayed on the display monitor 16 so as to be visible only from the driver's seat side. Further, when the “display on the passenger seat side” button 52 is pressed, the inputted memo is displayed so as to be visible only from the passenger seat side, and when the “display on the driver side and passenger seat side” button 53 is pressed, the input memo is input. The memo is displayed so that it can be seen from the driver side and the passenger side. Here, it is assumed that the user presses the “display on driver side and passenger side” button 53. When the display selection buttons 51 to 53 are pressed, the coordinates of the designated position, the memo recognized by the character, and the selected display are registered in the RAM 13 and the registration operation is completed.

  After registering the memo, the display monitor 16 is displayed so that the driver's seat can see the map screen showing the location of the vehicle, and the passenger seat can see the digital terrestrial broadcast program. It shall be. When the vehicle approaches within a predetermined distance from the registered position 62, the registered memo 61 is displayed on the display screen visible from the driver's seat side of the display monitor 16, as shown in FIG. On the other hand, as shown in FIG. 6B, the registered memo 61 is also displayed on the display screen that can be seen from the passenger seat side, superimposed on the digital terrestrial broadcast video 64.

  Next, the memo registration process will be described with reference to the flowchart of FIG. 7 is performed by executing a program that starts when the control circuit 11 selects a memo setting mode from a menu screen (not shown).

  In step S701, the map 30 is displayed on the display monitor 16. In step S <b> 702, it is determined whether touch panel 110 has been pressed based on a signal output from touch panel 110. If it is pressed, an affirmative decision is made in step S702 and the process proceeds to step S703. If not, step S702 is repeated. In step S703, coordinates on the map corresponding to the pressed position of the touch panel 110 are detected. In step S704, the memo input screen 41 is displayed on the display monitor 16.

  In step S705, it is determined whether the registration button 42 has been pressed. If the button is pressed, an affirmative determination is made in step S705, and the process proceeds to step S706. If not pressed, a negative determination is made in step S705, and the process proceeds to step S710. In step S706, the characters input on the memo input screen 41 are output to the character recognition unit 114. The character recognition unit 114 recognizes characters output from the control circuit 11. In step S <b> 707, the handwritten character recognition result is acquired from the character recognition unit 114. In step S708, the display selection buttons 51 to 53 are displayed on the display monitor 16. In step S709, the recognition result of character recognition and the display of the display screen selected by the display selection buttons 51 to 53 are stored in the RAM 13 together with the coordinates on the map corresponding to the pressed position of the touch panel 110.

  In step S710, it is determined whether the cancel button 43 has been pressed. If the button is pressed, an affirmative decision is made in step S710 and the process proceeds to step S711. If not pressed, a negative determination is made in step S710, and the process returns to step S705. In step S711, the character input on the memo input screen 41 is canceled. Then, the process returns to step S705.

  Next, the memo display process will be described with reference to the flowchart of FIG. The process of FIG. 8 is performed by executing a program that starts when the control circuit 11 displays a map around the vehicle position.

  In step S801, the current position detection device 14 detects the current position of the vehicle. In step S802, the coordinates of the current location are collated with the coordinates of the position where the memo stored in the RAM 13 is displayed. In step S803, it is determined whether there is a coordinate for displaying a memo within a predetermined distance from the current location. If there is, step S803 is affirmed and the process proceeds to step S804. If not, a negative determination is made in step S803, and the process returns to step S801.

  In step S804, it is determined whether the display selected by the display selection buttons 51 to 53 is to be displayed on the driver seat side and the passenger seat side. If it is displayed on the driver seat side and the passenger seat side, an affirmative decision is made in step S804, and the flow proceeds to step S805. If it is not displayed on the driver's seat side and the passenger seat side, a negative determination is made in step S804, and the process proceeds to step S806. In step S805, the memo 61 is displayed on the display screen seen from the driver's seat side and the display screen seen from the passenger seat side.

  In step S806, it is determined whether the display selected by the display selection buttons 51 to 53 is to be displayed on the driver's seat side. If it is displayed on the driver's seat side, an affirmative decision is made in step S806, and the process proceeds to step S807. If it is not displayed on the driver's seat side, a negative determination is made in step S806, and the process proceeds to step S808. In step S807, the memo is displayed only on the display screen visible from the driver's seat side. In step S808, the memo is displayed only on the display screen visible from the passenger seat side.

The navigation device 1 according to the above embodiment has the following effects.
(1) The memo 61 is registered in association with the position 62, and when approaching the position 62, the memo 61 is displayed on the display screen seen from the driver's seat and the display screen seen from the passenger seat. Therefore, a common topic can be provided to users who are viewing different videos, and communication between the driver seat user and the passenger seat user can be achieved. In addition, it is possible to prevent a user from forgetting errands and precautions at the registered position and passing through as they are.

(2) Since the memo can be input by handwriting, the memo can be input easily.

(3) Since the memo can be displayed by selecting one of the display screen visible from the driver seat side and the display screen visible from the passenger seat side, only the user of the driver seat or the passenger seat passenger can display it. Necessary notes can be presented to each user.

The navigation apparatus 1 of the above embodiment can be modified as follows.
(1) When the vehicle approaches within a predetermined distance from the position where the memo is registered, the memo is displayed on the display monitor 16, but the memo may be displayed when the vehicle reaches the position where the memo is registered.

(2) Although the memo is registered in association with a predetermined position, it may be registered in association with time or date other than the position. In this case, the memo is displayed when the vehicle approaches within a predetermined distance from the registered position at the date and time when the memo is registered, and the memo is not displayed even when the vehicle approaches within the predetermined distance from the registered position unless the registered date and time. To do. By doing in this way, the memo about the night view of the embodiment can be displayed only in the night time zone, the Christmas season, etc., and the convenience for the user is improved.

(3) A different memo may be displayed between the memo displayed on the display screen viewed from the driver's seat side and the memo displayed on the display screen viewed from the passenger seat side. For example, the memo “Night view is beautiful” of the embodiment may be displayed on the display screen seen from the passenger seat side, and the memo describing the night view may be displayed on the display screen seen from the driver seat side. .

(4) The display monitor 16 has a display screen that is visible from the driver's seat side and a display screen that is visible from the passenger's seat side. It is not limited to the seat side. For example, the display screen 16 may be changed depending on the user's viewing direction in the vertical direction, and the display screen seen from the front seat side and the display screen seen from the rear seat side may be changed.

(5) Although the character recognition unit 114 recognizes the handwritten character and the character recognition result is displayed as a memo, the handwritten character may be registered as image data and the handwritten character may be displayed as a memo as it is. Graphics and pictograms can also be displayed as memos, improving convenience.

(6) The video displayed on the display monitor 16 is not limited to the digital terrestrial broadcast video. For example, video stored in a storage medium such as a video tape or a DVD may be used.

(7) Although the display screen seen from the driver's seat side and the display screen seen from the passenger seat side are applied to the front monitor 16, they may be applied to two display monitors provided in one vehicle. In this case, the display monitor may not change the display screen depending on the viewing direction. The memos displayed on the two display monitors do not have to be the same, and may be different. You may enable it to select which display monitor of two display monitors displays the memo registered. When display monitors are provided for the front seat and the rear seat, respectively, a map screen is displayed on the front seat display monitor, and video stored in a storage medium such as a digital terrestrial broadcast or a DVD is displayed on the rear seat display monitor. When the vehicle approaches or arrives at the position where the memo is registered, the memo registered in one or both of the front seat display monitor and the rear seat display monitor may be displayed.

  The present invention is limited to the embodiment as long as a pre-registered memo can be displayed on two different display screens when the vehicle travels at a pre-registered point or approaches within a predetermined distance from the pre-registered point. Not.

The correspondence between the elements of the claims and the embodiments will be described.
The display control means of the present invention corresponds to the control circuit 11 and the display monitor control unit 17, and the display screen selection means and input means correspond to the control circuit 11, the touch panel 110 and the touch panel control unit 111. 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 block diagram which shows the structure of a terrestrial digital broadcast receiver. It is a figure for demonstrating operation which designates the position on the map which displays a memo. It is a figure for demonstrating operation which inputs a memo. It is a figure for demonstrating operation which selects the display screen which displays a memo. FIG. 6A is a diagram for explaining display of a memo on the display screen viewed from the driver's seat side, and FIG. 6B is a diagram for explaining display of the memo on the display screen viewed from the passenger seat side. is there. It is a flowchart for demonstrating memo registration processing. It is a flowchart for demonstrating a memo display process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Navigation apparatus 11 Control circuit 13 RAM
14 Current location detection device 16 Display monitor 17 Display monitor control unit 110 Touch panel 114 Character recognition unit 116 Terrestrial digital broadcast reception unit

Claims (10)

A display monitor in which the display screen visible from one direction is different from the display screen visible from the other direction;
A display control means for displaying a pre-registered memo on the display monitor when the vehicle travels at a pre-registered point or approaches within a predetermined distance from the pre-registered point;
The navigation apparatus, wherein the display control means displays the pre-registered memo on at least one of the display screen seen from one direction and the display screen seen from the other direction. The navigation device according to claim 1, wherein
The navigation device according to claim 1, wherein the display control means displays a memo different from a memo displayed on the display screen viewed from the other direction on the display screen viewed from the one direction. The navigation device according to claim 1 or 2,
The display control means is a display screen selection means for selecting a memo display screen so as to display the pre-registered memo on one or both of the display screen seen from one direction and the display screen seen from the other direction. A navigation device comprising: The navigation device according to any one of claims 1 to 3,
The display control means displays the map on the display screen visible from the driver's seat side as the one direction and the video stored in the terrestrial digital broadcast or recording medium on the display screen visible from the passenger seat side as the other direction. A navigation device. Two display monitors,
Display control means for displaying a pre-registered memo on at least one of the two display monitors when the vehicle travels at a pre-registered point or approaches within a predetermined distance from the pre-registered point A navigation device characterized by that. The navigation device according to claim 5, wherein
The navigation device characterized in that the display control means displays different memos on each of the two display monitors. The navigation device according to claim 5 or 6,
The navigation apparatus according to claim 1, wherein the display control means includes display screen selection means for selecting a memo display screen so that the pre-registered memo is displayed on one or both of the two display monitors. The navigation device according to any one of claims 5 to 7,
The navigation apparatus according to claim 1, wherein the display control means displays a map on one of the two display monitors and an image stored in a digital terrestrial broadcast or a recording medium on the other. The navigation device according to any one of claims 1 to 8,
Input means for inputting the memo with handwritten characters;
The navigation apparatus, wherein the display control means displays a memo input by the input means. The navigation device according to any one of claims 1 to 9,
The display control means is configured to display the pre-registered memo on the display monitor when the vehicle travels at the pre-registered point or approaches within a predetermined distance from the pre-registered point at a date and time pre-registered by the vehicle. A navigation device characterized by displaying.

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