JP2007114035A - Display device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device for vehicle, providing map information or the like which is easily viewable for a user. <P>SOLUTION: The vehicle-use display device which is equipped with a meter display area for displaying a meter on a display and a navigation data display area for displaying of a navigation system, comprises: a drawing means which performs drawing on the display; a meter control means which sends meter drawing data to be displayed on the meter display area to the drawing means; a meter information acquiring means which acquires meter information form the meter control means; and a navigation control means which creates meter display-use navigation data to be displayed on the navigation data display area in accordance with the acquired meter information and sends the meter display-use navigation data to the drawing means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle display device including a meter display area for displaying a meter on a display and a navigation data display area for displaying a navigation system.

  In recent years, an image display device such as a liquid crystal has been used as a display device for a vehicle instrument panel in addition to a conventional mechanical meter. This image display device has the advantage that the design and layout of the display can be freely set.

  Therefore, in addition to the conventional meter display, this image display device displays a screen of a vehicle-mounted navigation device, displays an analog meter image having a pointer and a pointer rotation region, and follows the outer periphery of the pointer rotation region. A vehicle display device has been devised that displays a ring image and improves the visual effect and the like by using the ring image as a glossy tone display (see Patent Document 1).

  In addition to simply displaying the screen of the in-vehicle navigation device, the vehicle has a stop mode in which information required when the vehicle is stopped is displayed on the LCD (Liquid Crystal Display) display device on a small screen, and the information required when traveling is displayed on the LCD. A route that displays a large screen in the device and switches between a driving mode that displays a navigation guide image including a guidance route on a small screen in the LCD display device when guiding the map, the vehicle position, and the route according to the speed of the vehicle A guidance device has been devised (see Patent Document 2).

JP 2004-157434 A JP-A-11-51686

  As a configuration of the prior art, a meter display area for displaying a meter and a navigation data display area for performing a navigation display as shown in FIG. 11 are displayed on the display 54, and navigation data is stored in the meter 50 as shown in FIG. There are two types of configurations including a display 54 to be displayed and a meter display unit 59 including a stepper motor for moving the meter pointer and an LED. In either configuration, drawing data for navigation display is created in the in-vehicle navigation device 100. The drawing data for meter display is created together with the drawing data from the meter ECU 40 by the drawing ECU 60 or a circuit corresponding thereto, and is displayed on the display 54. In the configuration of FIG. 12, only the drawing data for navigation display is displayed on the display unit 54, and meter drawing data is not created in the meter ECU 40, and the meter display unit 59 is controlled.

  However, in the configuration according to the prior art, since the drawing data is created separately by the meter (meter ECU 40) and the vehicle-mounted navigation device (100), a new vehicle-mounted navigation device (100) is developed each time the meter design changes. Or there is a problem that it must be improved. Moreover, although the method for a user to change the display design of the vehicle-mounted navigation device (100) according to the design of the meter (50) can be used, there arises a problem that the user's operation becomes complicated.

  Also, for example, when a warning indicator is displayed in the meter, when the navigation display is bright, or when a color similar to the warning indicator is used in the navigation display, the recognition rate of the warning to be communicated to the user is reduced. Can be considered.

  In addition, when the display size and display position of the navigation display can be changed in the meter (50), the optimal navigation display form (number of roads, number of landmarks / size, number of characters / size, etc.) cannot be changed depending on the size or position. The display is sparse even though it is a large screen, or the display is dense even though it is a small screen, so that the information required by the user cannot be provided and the appearance is poor. Further, although a method in which the user changes the navigation display form can be used, there arises a problem that the user's operation becomes complicated.

  There is also a method of gradually changing the color of the outer edge toward the meter display area using blurring processing etc. without clarifying the outer edge that touches the meter display area of the navigation data display area. If the color changes, the outline of the navigation data display area becomes clear, and if the same color as the meter display area is used at the outer edge of the navigation data display area, the blurring effect is reduced.

  With the above problem as a background, an object of the present invention is to provide a vehicle display device that provides easy-to-see map information and the like to a user.

Means for Solving the Problems and Effects of the Invention

  The present invention provides a vehicle display device for solving the above-described problems. That is, according to claim 1, in the vehicle display device comprising a meter display area for displaying the meter on the display and a navigation data display area for displaying the navigation system, the drawing means for drawing on the display; Meter control means for sending meter drawing data for display in the meter display area to the drawing means, meter information acquisition means for acquiring meter information from the meter control means, and display in the navigation data display area according to the acquired meter information And a navigation control means for generating meter display navigation data for transmitting the meter display navigation data to the drawing means, and configured as a vehicle display device.

  With the above configuration, it is not necessary to newly develop or improve an in-vehicle navigation device even if the design of the meter changes. Therefore, the cost for development or improvement and the manufacturing cost can be suppressed. Further, it is not necessary to use a method in which the user changes the display design of the in-vehicle navigation device in accordance with the design of the meter, and the problem that the user's operation becomes complicated does not occur.

  According to a second aspect of the present invention, a vehicle display device for solving the above-mentioned problem is a vehicle display device comprising a meter display area for displaying a meter on a display and a navigation data display area for displaying a navigation system. A drawing means for drawing on the display; a meter information obtaining means for obtaining meter information from the meter control means; and a meter display navigation data for displaying in the navigation data display area according to the obtained meter information And a navigation control means for sending the meter display navigation data to the drawing means.

  Even with the above configuration, there is no need to newly develop or improve an in-vehicle navigation device even if the design of the meter changes. Therefore, the cost for development or improvement and the manufacturing cost can be suppressed. Further, it is not necessary to use a method in which the user changes the display design of the in-vehicle navigation device in accordance with the design of the meter, and the problem that the user's operation becomes complicated does not occur. The said structure is suitable for the structure which includes a navigation data display area in a mechanical meter.

  According to the third aspect, the meter information in the vehicle display device of the present invention includes meter display color information, character design information, display brightness information, the size of the navigation data display area, or the meter of the navigation data display area. It is possible to adopt a configuration in which at least one of the information regarding the display position is included.

  With the above configuration, the navigation control means (for example, an in-vehicle navigation device) that has acquired meter information makes it difficult to see the meter display area for displaying the navigation data display area, and conversely for displaying the meter display area. It is possible to prevent the navigation data display area from becoming difficult to see, and to create optimal meter display navigation data.

  According to the fourth aspect of the present invention, the navigation control means in the vehicle display device of the present invention can be configured to create meter display navigation data according to the display color information of the meter.

  For example, if the display color used in the meter drawing data is not used in the meter display navigation data, the display contents in both the meter display area and the navigation data display area can be prevented from being difficult to see, and the optimum An indication can be provided.

  According to claim 5, the navigation control means in the vehicle display device of the present invention can be configured to create meter display navigation data in accordance with the character design information.

  With the above configuration, character designs (size, typeface, display color, character modification, etc.) displayed in both the meter display area and the navigation data display area are unified, and the user does not feel discomfort in the meter display.

  According to the sixth aspect, the navigation control means in the vehicle display device of the present invention can be configured to create meter display navigation data in accordance with display brightness information.

  With the above configuration, for example, when a warning indicator is displayed in the meter display area, it is possible to prevent the warning recognition rate to be transmitted to the user from decreasing by making the navigation data display area darker than the meter display area.

  According to the seventh aspect of the present invention, the navigation control means in the vehicle display device of the present invention creates meter display navigation data according to the size of the navigation data display area or the information related to the display position of the navigation data display area in the meter. Configuration can be taken.

  With the above configuration, when the display size and display position of the navigation data display area can be changed in the meter, it is possible to create and display optimal meter display navigation data depending on the size and position, so the navigation data display area is large. However, the display contents are not sparse and the navigation data display area is small, but the display contents are not dense, and the information required by the user can be provided in an optimal display form. In addition, the user does not have to change the display form of the navigation data display area.

  According to the eighth aspect, the navigation control means in the vehicle display device of the present invention is displayed in the navigation data display area according to the information on the size of the navigation data display area or the display position of the navigation data display area in the meter. It is possible to adopt a configuration in which at least one of the map scale, the character design, and the number of character strings is changed.

  With the above configuration, information required by the user can be provided in an optimal display form. In addition, the user does not have to change the display form of the navigation data display area.

  According to the ninth aspect of the present invention, the vehicle display device of the present invention has a configuration having a navigation data processing means for processing a region adjacent to the meter display region in the meter display navigation data according to the display content of the meter. Can do.

  With the above configuration, using the meter display navigation data created according to the display content of the meter, for example, the outer edge portion in contact with the meter display area is not clarified, and the color of the outer edge portion is gradually adjusted using blurring processing or the like. As the background color of the meter changes, the outline of the navigation data display area becomes clear and the same color as the meter display area is used at the outer edge of the navigation display area. The problem of fading is eliminated.

  According to the tenth aspect, the navigation data processing means in the vehicle display device of the present invention is configured to change the display design of the area adjacent to the meter display area in the meter display navigation data so as to match the display content of the meter. Can be taken.

  The above configuration eliminates the problem that the outline of the navigation data display area becomes clear when the background color of the meter changes, and the blurring effect fades if the same color as the meter display area is used at the outer edge of the navigation display area Is done.

  The purpose of providing a vehicle display device that provides easy-to-read map information and the like to the user is to send meter information from the meter ECU to the vehicle navigation device, and based on the meter information, an optimal meter display navigation by the vehicle navigation device Realized by the configuration to create data.

  Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. 1 and 2 show the overall configuration of the vehicle display device of the present invention. The vehicle display device includes a meter ECU 40 and a meter 50, a drawing ECU 60, and an in-vehicle navigation device (hereinafter abbreviated as a navigation device) 100. The meter ECU 40, the drawing ECU 60, and the navigation device 100 are connected by, for example, an in-vehicle LAN (Local Area Network) 27 (described later). Moreover, it is good also as a structure which transmits data with an exclusive cable not via in-vehicle LAN27 by the content of data.

  The example of FIG. 1 is a configuration including a meter display area and a navigation data display area in the display 54 of the meter 50, and FIG. 3 is a block diagram showing the configurations of the meter ECU 40 and the meter 50 in the configuration of FIG. The meter ECU 40 includes a control unit 41, a drawing unit 43, a LAN I / F 44, and an external memory 45 connected to the control unit 41 via an I / O 42 that is an input / output circuit.

  The control unit 41 which is a meter control means of the present invention includes a known CPU 41a, ROM 41b, RAM 41c, and peripheral circuits such as an A / D conversion circuit (not shown). The ROM 41b stores a meter control program 41p and data for executing various processes performed by the meter ECU 40.

  The drawing unit 43 generates meter display data to be displayed on the display unit 54 based on data necessary for meter display acquired from the in-vehicle LAN 27 or the like, and also stores display data and display color data. Has been. The acquired data includes, for example, engine water temperature, engine speed, vehicle speed, shift position, travel distance, date and time, remaining fuel, and the like.

  The LAN I / F 44 is an interface circuit for exchanging data with the in-vehicle LAN 27.

  The external memory 45 is constituted by a rewritable semiconductor memory such as an EEPROM (Electrically Erasable & Programmable Read Only Memory) or a flash memory, and information and data necessary for the operation of the meter ECU 40 are stored therein. It is remembered. The external memory 45 holds the stored contents even when the meter ECU 40 is turned off.

  The meter 50 includes a microphone 51, a speaker 52, an LED 53, and a display 54, and displays meter display data from the drawing ECU 60.

  The microphone 51 is used as a part of the voice input device of the navigation device 100, for example. The voice data input to the microphone 51 may be sent directly to the navigation device 100 without going through the in-vehicle LAN 27.

  The speaker 52 transmits voice messages from various in-vehicle devices, and the voice messages of the navigation device 100 are also transmitted. The speaker 52 and the navigation device 100 may be directly connected without using the in-vehicle LAN 27. In the example of FIG. 4, the speaker 52 is mounted in a meter hood 55 near the meter.

  The LED 53 is mainly used for an indicator lamp, an operation monitor lamp, a warning lamp, and the like that are displayed irregularly.

  The display 54 includes a known panel 54a such as a color liquid crystal, a backlight 54b, and a driver circuit (not shown) for performing liquid crystal display control. The driver circuit uses, for example, an active matrix drive system in which a transistor is attached to each pixel so that the target pixel can be reliably turned on and off, and display is performed based on a drawing command and drawing data sent from the meter ECU 40 To do. As the display 54, an organic EL (ElectroLuminescence) display or a plasma display may be used.

  In the configuration of FIGS. 1 and 3, the meter display data created by the drawing unit 43 is sent to the drawing ECU 60, and the drawing ECU 60 adds the meter display data together with the meter display navigation data sent from the navigation device 100. Is generated and displayed on the display 54.

  The example of FIG. 2 includes a display 54 that displays only navigation data in the meter 50. The configuration of the display 54 is the same as the configuration of FIG. In this configuration, the meter ECU 40 is not connected to the drawing ECU 60, and instead of the drawing unit 43 in FIG. 3, the meter display unit 59 is a mechanical meter including a stepper motor, LED, meter dial, meter pointer, etc. A drive control unit (not shown) that performs drive control is included. Based on data necessary for meter display acquired from the in-vehicle LAN 27 or the like, the drive control unit performs drive control of the meter display unit 59 (stepper motor drive and LED lighting).

  In the configuration of FIG. 2, meter display navigation data sent from the navigation device 100 via the drawing ECU 60 is displayed on the display 54. Further, in the meter display portion, an LED or a light included in the meter display portion 59 illuminates the inside of the meter or a predetermined area of the meter. These illumination colors, meter panel and meter pointer colors, meter character colors, designs, and the like are included in the meter information.

  FIG. 4 shows a cross-sectional view of the meter 50. A display 54, a meter substrate 58 including a driver circuit, an LED 53 (not shown), a meter display 59 (not shown), etc. are housed in a case 57 and attached to a predetermined position of the dash panel. The upper and lower sides of the case 57 are covered with a meter hood 55 that mainly suppresses reflection and reflection of light and improves the visibility of the meter 50. A dustproof transmission member 56 is attached to the front surface of the display 54.

  FIG. 5 is a block diagram showing the configuration of the navigation device 100. The navigation device 100 includes a position detector 1, a map data input device 6, an operation switch group 7, a remote control (hereinafter referred to as remote control) sensor 11, a voice synthesis circuit 24 for performing voice guidance, a speaker 15, a nonvolatile memory 9, a display And a hard disk device (HDD) 21, a control circuit 8 connected thereto, and a remote control terminal 12.

  The position detector 1 includes a known geomagnetic sensor 2, a gyroscope 3, a distance sensor 4, and a GPS receiver 5 that detects the position of the vehicle based on radio waves from a satellite. Since these sensors 2, 3, 4, and 5 have errors of different properties, they are configured to be used while being complemented by a plurality of sensors. Depending on the accuracy, some of the above-described sensors may be used, and further, a steering rotation sensor or a wheel sensor of each rolling wheel, such as a vehicle speed sensor 23, may be used.

  As the operation switch group 7, for example, a touch panel 22 integrated with the display device 10 or a mechanical switch is used. The touch panel 22 is pressed when an electric circuit is wired on the screen of the display 10 in the X-axis direction and the Y-axis direction through a gap called a spacer on a glass substrate and a transparent film, and the user touches the film. Since the voltage value changes due to short-circuiting of a part of the wiring, a so-called resistance film method for detecting this as a two-dimensional coordinate value (X, Y) is widely used. In addition to the mechanical switch, a pointing device such as a mouse or a cursor may be used.

  It is also possible to input various instructions using the microphone 31 and the voice recognition unit 30. In this method, a voice signal input from the microphone 31 is processed by a voice recognition technique such as a well-known hidden Markov model in the voice recognition unit 30, and converted into an operation command corresponding to the result. Various instructions can be input through the operation switch group 7, the remote control terminal 12, and the microphone 31. Further, the microphone 51 of the meter 50 may be used.

  The transceiver 13 is a device for receiving road traffic information from, for example, a VICS (Vehicle Information and Communication System) center 14.

  In addition, by communicating with an ETC (Electronic Toll Collection) vehicle-mounted device 16, the fee information received by the ETC vehicle-mounted device 16 from an ETC road device (not shown) can be taken into the navigation device 100. . Further, the ETC vehicle-mounted device 16 may be connected to an external network and communicate with the VICS center 14 or the like.

  The control circuit 8 which is the navigation control means of the present invention is configured as a normal computer, and includes a well-known CPU 81, ROM 82, RAM 83, I / O 84 which is an input / output circuit, and a bus line 85 which connects these configurations. ing. The CPU 81 controls the navigation program 21p and data stored in the HDD 21. The CPU 81 controls the reading / writing of data to / from the HDD 21. The A / D conversion unit 86 includes a well-known A / D (analog / digital) conversion circuit, and converts analog data input from the position detector 1 or the like to the control circuit 8 into digital data that can be calculated by the CPU 81, for example. It is. The ROM 82 may store a program for performing a minimum necessary operation among the navigation functions when the HDD 21 fails.

  The drawing unit 87 includes navigation drawing data to be displayed on the display 10 from display data and display color data stored in the HDD 21 or the like, and a navigation data display area 77 of the meter 50 (see FIGS. 8 to 10). Meter display navigation data to be displayed on the screen is generated.

  In addition to the navigation program 21p, the HDD 21 stores so-called map matching data for improving the accuracy of position detection, and map data 21m including road data representing road connections. The map data 21m stores predetermined map image information for display and road network information including link information and node information. The link information is predetermined section information constituting each road, and includes position coordinates, distance, required time, road width, number of lanes, speed limit, and the like. The node information is information that defines an intersection (branch road) and the like, and includes position coordinates, the number of right / left turn lanes, a connection destination road link, and the like. In addition, data indicating whether or not traffic is possible is set in the inter-link connection information.

  In addition, in the HDD 21, auxiliary information for route guidance, entertainment information, and other data can be written independently by the user and stored as user data 21u. The user data 21 u can be rewritten by operating the operation switch group 7, the touch panel 22 and the remote control terminal 12, or by inputting voice from the microphone 31. Further, data and various information necessary for the operation of the navigation device 100 may be stored as the database 21d.

  The map data 21m and user data 21u can be added / updated from the storage medium 20 via the map data input device 6. The storage medium 20 is generally a CD-ROM or DVD based on the amount of data, but may be another medium such as a memory card. Alternatively, it may be downloaded from an information center such as an Internet server via an external network.

  The nonvolatile memory 9 is constituted by a rewritable semiconductor memory such as an EEPROM or a flash memory, and stores information and data necessary for the operation of the navigation device 100. The nonvolatile memory 9 holds the stored contents even when the accessory switch of the vehicle is turned off, that is, the navigation device 100 is turned off. Further, information and data necessary for the operation of the navigation device 100 may be stored in the HDD 21 instead of the nonvolatile memory 9. Furthermore, information and data necessary for the operation of the navigation device 100 may be stored separately in the nonvolatile memory 9 and the HDD 21.

  The display 10 is composed of a known color liquid crystal display and includes a dot matrix LCD and a driver circuit (not shown) for performing LCD display control. The driver circuit uses, for example, an active matrix driving method in which a transistor is attached to each pixel so that the target pixel can be reliably turned on and off, and a display command and display screen data (navigation) sent from the control circuit 8 are used. Display based on (drawing data). Further, an organic EL (ElectroLuminescence) display or a plasma display may be used as the display 10.

  The speaker 15 is connected to a known voice synthesis circuit 24 connected to the I / O 84 of the control circuit 8, and the digital voice data stored in the nonvolatile memory 9 or the HDD 21 is converted into an analog voice by the voice synthesis circuit 24 according to a command from the navigation program 21 p. The one converted to is sent. Note that the speech synthesis method includes a recording / editing method in which speech waveforms are stored as they are or after being encoded and connected as necessary. Further, the speaker 52 of the meter 50 may be used.

  The vehicle speed sensor 23 includes a rotation detection unit such as a known rotary encoder. For example, the vehicle speed sensor 23 is installed in the vicinity of the wheel mounting unit to detect the rotation of the wheel and send it to the control circuit 8 as a pulse signal. The control circuit 8 converts the rotation speed of the wheel into the speed of the vehicle, calculates the expected arrival time from the current position of the vehicle to a predetermined location, and calculates the average vehicle speed for each travel section of the vehicle.

  The LAN I / F 26 as meter information acquisition means and navigation control means of the present invention is an interface circuit for exchanging data with the in-vehicle LAN 27. Input of meter information from the meter ECU and meter display navigation to the drawing ECU 60. Output data. Further, data may be taken from the vehicle speed sensor 23 or connected to the ETC on-vehicle device 16 via the LAN I / F 26.

  With this configuration, when the navigation program 21p is activated by the CPU 81 of the control circuit 8, the navigation device 100 allows the user to operate the operation switch group 7, the touch panel 22, the remote control terminal 12, or the voice from the microphone 31. When the route guidance processing for displaying the destination route on the display 10 is selected from the menu displayed on the display 10 by the input, the following processing is performed.

  That is, when the user selects a point from a given point or facility search or address search on the map, a registered place set by the user, and sets it as a destination, the position detector 1 determines the current position of the vehicle, Processing for obtaining an optimum guide route from the current position to the destination is performed. Then, the guidance route is displayed on the road map on the display 10 so as to guide the user to the appropriate route. As a method for automatically setting an optimum guide route, a method such as the Dijkstra method is known. In addition, at least one of the display 10 and the speaker 15 provides a guidance according to an operation or a message according to an operation state.

  FIG. 6 is a block diagram showing a configuration of a drawing ECU 60 which is a drawing means of the present invention. The drawing ECU 60 includes a control unit 61, a drawing unit 63, a LAN I / F 64, and a flash memory 65 connected to the control unit 61 via an I / O 62 that is an input / output circuit.

  The control unit 61 includes a known CPU 61a, ROM 61b, RAM 61c, and peripheral circuits such as an A / D conversion circuit (not shown). The ROM 61b stores a drawing control program 61p and data for executing various processes performed by the drawing ECU 60. Data necessary for the operation of the drawing ECU 60 and data necessary for creating meter display drawing data are stored in the flash memory 65.

  The drawing unit 63 creates and displays meter display drawing data by combining the drawing data for meter acquired from the meter ECU 40 via the in-vehicle LAN 27 and the navigation data for meter display acquired from the navigation device 100 by the drawing control program 61p. To instrument 54. The display 54 displays meter display drawing data sent from the drawing ECU 60.

A meter display navigation data creation process for displaying in the navigation data display area 77 (see FIGS. 8 to 10) of the display 54 will be described with reference to FIG. This process is included in the navigation program 21p and is repeatedly executed together with other programs of the navigation program 21p. First, meter information is acquired from the meter ECU 40 via the in-vehicle LAN 27 (S1). The meter information includes at least one of the following.
(1) Display color information (background, pointer, character, etc.) in the meter display area (see FIGS. 8 to 10).
(2) Character design information in the meter display area (character size, typeface, display color, character modification, etc.).
(3) Display brightness information in the meter display area.
(4) Information on the size of the navigation data display area 77 or the display position of the navigation data display area 77 on the display unit 54.

  In the configuration of FIG. 2, the LED or the light included in the meter display unit 59 illuminates the inside of the meter or a predetermined area of the meter. These illumination colors, meter panel and meter pointer colors, meter character colors, designs, and the like are included in the meter information. Meter information may be stored in the external memory 45.

  Next, as described above, the map information around the current position of the vehicle is acquired from the map data 21m based on the current position of the vehicle detected by the position detector 1, and the display 10 of the navigation device 100 is displayed. Display contents to be displayed are determined, and navigation drawing data corresponding to the display contents is created (S2). Of course, the display content may be a display screen when the menu screen / setting input screen is displayed by a user operation.

  Based on the acquired meter information, meter display navigation data is created from the navigation drawing data (S3).

  An example of creating meter display navigation data in the configuration of FIG. 1 will be described using display examples on the display 54 of FIGS. The indicator 54 of the meter 50 includes a water temperature display area 71, a vehicle speed display area 72, a display area 73 such as a distance meter and a shift position, an engine speed display area 74, a fuel gauge display area 75, a warning, and the like. A display area 76, a navigation data display area 77, and the like are included. FIG. 8 shows a state in which a map is displayed in the navigation data display area 77, and a route guidance is provided on the map showing the guidance route 77a and the current position / traveling direction 77b of the vehicle.

  In the state of FIG. 8, when the meter ECU 40 acquires any abnormality from the sensor or other in-vehicle device, a warning mark 76a is displayed in the warning display area 76 as shown in FIG. At this time, if the display color of the warning mark 76a is the same color or the same color as the display color of the guide route 77a, the warning mark 76a becomes difficult to see. Therefore, it is checked whether the same color as the display color of the warning mark 76a included in the meter information acquired in the meter display navigation data creation process is used in the navigation data display area 77, and is used, for example, for displaying the guidance route 77a. If so, meter display navigation data is created by changing the display color of the guide route 77a to another color as shown in FIG.

  In addition to the example described above, there are the following methods for creating meter display navigation data from navigation drawing data.

(1) Meter display area (water temperature display area 71, vehicle speed display area 72, display area 73 such as distance meter and shift position, engine speed display area 74, fuel gauge display area 75, warning display area 76, and so on) The background color, character color, and pointer color information are acquired from the meter ECU 40. For example, when the background color of the meter display area changes from black to white and the character changes from white to black, the navigation drawing data also has a background of white or cream color. The meter display navigation data is created with such a bright one. Further, the character color of the meter display navigation data is matched with the character color of the meter display area, and the display color of the guidance route is also matched with the meter pointer color.
(2) The character design information displayed in the meter display area is acquired from the meter ECU 40, and the character design used in the meter display navigation data is matched with that used in the meter display area.
(3) The brightness information of the meter display area is acquired from the meter ECU 40, and the meter display navigation data is created so as to match the brightness or not equal to the brightness. The brightness can be changed by adjusting the color gradation.
(4) The size and position information of the navigation data display area 77 is acquired from the meter ECU 40, and the meter display navigation data is created at a scale or display density corresponding to it. For example, according to the size of the navigation data display area 77, the type of road to be displayed, the type of facility, the number of character strings, and the character size are changed.
As for roads, when the navigation data display area 77 is large, up to narrow streets are displayed. When the navigation data display area 77 is small, only main roads such as national roads and prefectural roads are displayed.
・ For facilities, if the navigation data display area 77 is large, only small facilities / stores are displayed, but if the navigation data display area 77 is small, only major facilities such as stations, government offices, and large-scale commercial stores are displayed. .
-Regarding the number of characters and the character size, when the navigation data display area 77 is large, it is displayed with the normal number of characters (eg "Nagoya Station") and the character size, but when the navigation data display area 77 is small, it is normal. It is displayed with a smaller number of character strings (example: “name station”) and a smaller character size.
(5) When the stop information or full screen request when the vehicle is stopped is acquired from the meter ECU 40, the entire meter display area is used as the navigation data display area 77 so that a detailed map can be displayed.
(6) Information on the thickness of the scale displayed in the meter display area is acquired from the meter ECU 40, and the thickness of the road is determined according to the thickness of the scale.
(7) Information on the speedometer unit (mile, km) displayed in the vehicle speed display area 72 is acquired from the meter ECU 40, and the unit used in the meter display navigation data is matched with the unit information.

  After the meter display navigation data is created by the above processing, the navigation data display area 77 and the meter display area (for example, 72, 74) are adjacent to each other in the navigation data display area 77 based on the meter information acquired from the meter ECU 40. It is also possible to process the meter display navigation data in the area of the range so as to match the display color of the adjacent meter display area for each map data. As processing methods, there are methods such as blurring, gradation, and tone-down (brightness change).

  In the configuration of FIG. 2 as well, the meter display navigation data can be created as in the configuration of FIG. Further, it is possible to process the meter display navigation data in a predetermined range adjacent to the display 54 and the meter display unit 59 to match the display color of the meter display unit 59.

  In the example of FIGS. 8 to 10, the navigation data display area 77 is not a rectangular shape generally used in the related art, but has a shape that has entered an unused area of the vehicle speed display area 72 and the engine speed display area 74. It need not be rectangular. With this configuration, the display area of the panel 54a can be used effectively, and the navigation data display area 77 can be widened. Further, if the color of navigation data such as a map displayed in the unused area of the vehicle speed display area 72 and the engine speed display area 74 is processed so as to match the display color of each display area, the display does not feel strange.

  In the example of the engine speed display area 74 in FIG. 8, the navigation data display area 77 can be enlarged and displayed to the inside of the number on the scale 74b as long as it does not overlap the meter pointer 74a. When the meter pointer 74a moves from the position shown in FIG. 8 to the high rotation side and the meter pointer 74a approaches as the meter pointer 74a moves, the navigation data display area 77 in a predetermined range of the approached meter pointer 74a is reduced to a map. Disappears. When the engine speed decreases and returns to the position shown in FIG. 8, the navigation data display area 77 expands and a map is displayed as the meter pointer 74a moves to the low rotation side.

  The meter information acquired from the meter ECU 40 may include content for directly instructing the navigation device 100 on brightness and color tone in addition to the above content.

  Returning to FIG. 7, the created meter display navigation data is sent to the drawing ECU 60 (S4).

  The drawing ECU 60 creates meter display drawing data by combining the meter drawing data acquired from the meter ECU 40 and the meter display navigation data acquired from the navigation device 100, and sends the meter display drawing data to the meter 50. The meter 50 displays meter display drawing data sent from the drawing ECU 60 on the display 54.

  In the configuration of FIG. 2, the drawing ECU 60 sends the meter display navigation data acquired from the navigation device 100 to the meter 50 as meter display drawing data. The drawing ECU 60 may further process the meter display navigation data.

  Moreover, it is good also as a structure which includes the function of drawing ECU60 in the drawing part 87 of the navigation apparatus 100 or the drawing part 43 of meter ECU40 by the structure of FIG. Similarly, in the configuration of FIG. 2, the drawing unit 87 of the navigation device 100 may include the function of the drawing ECU 60.

  Although the embodiments of the present invention have been described above, these are merely examples, and the present invention is not limited to these embodiments, and the knowledge of those skilled in the art can be used without departing from the spirit of the claims. Various modifications based on this are possible.

The figure which shows the structure of the display apparatus for vehicles. The figure which shows another structure of the display apparatus for vehicles. The block diagram which shows the structure of meter ECU and a meter. The figure which shows the cross section of a meter. The block diagram which shows the structure of a vehicle-mounted navigation apparatus. The block diagram which shows the structure of drawing ECU. The flowchart for demonstrating a drawing process. The figure which shows the example of a display of a meter. The figure which shows the example of a display of the meter before a navigation data display color change. The figure which shows the example of a display of the meter after a navigation data display color change. The figure which shows the structure of a prior art. The figure which shows another structure of a prior art.

Explanation of symbols

8 Control circuit (navigation control means)
10 Display 21 Hard Disk Device 26 LAN I / F (Meter Information Acquisition Unit, Navigation Control Unit)
27 Car LAN
31 Microphone 40 Meter ECU
41 Control unit (meter control means)
45 External memory 50 Meter 54 Display 60 Drawing ECU
61 control unit 63 drawing unit (drawing means)
87 Drawing unit (navigation control means)
100 Car navigation system

Claims (10)

In a vehicle display device comprising a meter display area for displaying a meter on a display and a navigation data display area for displaying a navigation system,
Drawing means for drawing on the display;
Meter control means for sending meter drawing data for display in the meter display area to the drawing means;
Meter information acquisition means for acquiring meter information from the meter control means;
Navigation control means for creating meter display navigation data to be displayed in the navigation data display area according to the acquired meter information, and sending the meter display navigation data to the drawing means;
A vehicle display device characterized by comprising: In a vehicle display device comprising a meter display area for displaying a meter on a display and a navigation data display area for displaying a navigation system,
Drawing means for drawing on the display;
Meter information acquisition means for acquiring meter information from the meter control means;
Navigation control means for creating meter display navigation data for display in the navigation data display area according to the acquired meter information, and sending the meter display navigation data to the drawing means;
A vehicle display device characterized by comprising:   The meter information includes at least one of the display color information of the meter, character design information, display brightness information, the size of the navigation data display area, or the display position of the navigation data display area on the meter. The vehicle display device according to claim 1, wherein one is included.   4. The vehicle display device according to claim 3, wherein the navigation control means creates the meter display navigation data according to display color information of the meter.   5. The vehicle display device according to claim 3, wherein the navigation control unit creates the meter display navigation data according to the character design information.   The vehicle display device according to claim 3, wherein the navigation control unit creates the meter display navigation data according to brightness information of the display.   The navigation control means creates the meter display navigation data according to information on the size of the navigation data display area or the display position of the navigation data display area in the meter. The vehicle display device described in 1.   The navigation control means includes a scale, a character design, a character string of a map displayed in the navigation data display area according to information on the size of the navigation data display area or the display position of the navigation data display area on the meter. The vehicle display device according to claim 7, wherein at least one of the numbers is changed.   The vehicle display device according to any one of claims 3 to 8, further comprising navigation data processing means for processing an adjacent area of the meter display navigation data to the meter display area according to display contents of the meter. . The vehicle display device according to claim 9, wherein the navigation data processing means changes a display design of an area adjacent to the meter display area in the meter display navigation data so as to match a display content of the meter.

Images