JP2005112255A - On-vehicle device and display method for on-vehicle device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To display various types of information on vehicle without impairing displays related to primary functions by applying to, for example, a car audio device. <P>SOLUTION: In this on-vehicle device, the display is formed by the main information on a display means by driving the display means by the main information acquired by a main information acquisition means. The display by the main information is changed by information D1 on the vehicle. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle-mounted device and a display method of the vehicle-mounted device, and can be applied to, for example, a car audio device. The present invention makes it possible to display various information related to the vehicle without impairing the display related to the original function by changing the display based on the main information according to the information related to the vehicle.

  2. Description of the Related Art Conventionally, a car audio device, which is one of in-vehicle devices, is configured so that music can be enjoyed through visual display by displaying the volume, frequency spectrum, etc. of music provided to a user in a graphic form. It is designed to demonstrate so-called entertainment.

  In the display of such a car audio device, in relation to the vehicle on which the car audio device is mounted, for example, in Japanese Patent Application Laid-Open No. 2002-187454, a character is switched and displayed according to the traveling speed of the vehicle. There has been proposed a method in which the display mechanism of the car audio device is used exclusively as a display means for information relating to the vehicle.

By the way, in a car audio device, if various types of information about the vehicle can be displayed without impairing the display related to the original function, which is a display that ensures entertainment, various useful information is notified to the passenger. It is thought that the usability of the audio device can be further improved.
JP 2002-187454 A

  The present invention has been made in view of the above points, and intends to propose an in-vehicle device and a display method for the in-vehicle device that can display various information about the vehicle without impairing the display related to the original function. Is.

  In order to solve such a problem, the invention of claim 1 is applied to an in-vehicle device that forms a display based on main information on the display means by driving the display means with the main information acquired by the main information acquiring means. The vehicle information acquisition means for acquiring information related to the mounted vehicle is provided, and the display based on the main information is changed according to the information related to the vehicle.

  Further, in the invention of claim 9, by applying the display means by the main information acquired by the main information acquisition means, it is applied to the display method of the in-vehicle device that forms the display by the main information on the display means, The display by the main information is changed according to the information on the mounted vehicle.

  According to the configuration of claim 1, the display unit is driven by the main information acquired by the main information acquisition unit, so that the display unit is applied to an in-vehicle device that forms a display based on the main information. If there is a vehicle information acquisition means for acquiring information, and if the display by the main information is changed by the information about the vehicle, the display by the main information provides various information about the vehicle while providing the display related to the original function. Thus, various information about the vehicle can be displayed without impairing the display related to the original function.

  Thereby, according to the structure of Claim 9, the display method of the vehicle-mounted apparatus which can display the various information regarding a vehicle can be provided, without impairing the display which concerns on an original function.

  According to the present invention, it is possible to display various types of information about a vehicle without impairing the display related to the original function such as entertainment related to music.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

(1) Configuration of Embodiment FIG. 1 is a block diagram showing a car audio apparatus that is an in-vehicle apparatus according to an embodiment of the present invention. In the car audio apparatus 1, the source unit 2 switches its operation under the control of the central processing unit 3 and outputs audio signals from various music sources. In this embodiment, a tuner for receiving broadcast waves and outputting an audio signal and a recording / reproducing apparatus for reproducing and outputting an audio signal recorded on a recording medium are applied to the music source. An audio signal provided and an audio signal provided by an optical disc such as a compact disc are output.

  The signal processing circuit 4 corrects and outputs the volume and frequency characteristics of the audio signal output from the source unit 2 under the control of the central processing unit 3, and the amplifier circuit 5 is output from the signal processing circuit 4. The speaker 6 is driven by the audio signal. As a result, the car audio apparatus 1 can listen to audio signals of various music sources.

  Further, the signal processing circuit 4 detects the signal level and frequency spectrum of the audio signal obtained by correcting the volume and frequency characteristics in this way, and outputs the detection result to the central processing unit 3, thereby the car audio device 1. According to the setting by the user, the volume or frequency spectrum related to the audio signal provided to the user is displayed graphically to ensure entertainment related to music. As a result, the signal processing circuit 4 constitutes main information acquisition means for acquiring main information related to the original display function for ensuring entertainment related to music.

  The display controller 9 constitutes image display means together with a liquid crystal display panel (LCD) 8 and displays a predetermined image under the control of the central processing unit 3.

  The operator 10 is provided on the operation panel of the car audio device 1 and notifies the central processing unit 3 of various operations by the user. The interface (I / F) 11 is connected to a controller of a vehicle on which the car audio device 1 is mounted, acquires information D1 related to the vehicle from the controller of the vehicle, and notifies the central processing unit 3 of the information. In this embodiment, as the information D1 related to the vehicle, information on the traveling speed, the number of revolutions of the engine, the front and rear of the vehicle, the left and right inclination, the temperature inside and outside the vehicle, and the volume of sound inside and outside the vehicle is notified.

  The central processing unit 3 constitutes a computer that controls the overall operation of the car audio device 1. When the user instructs to listen to music by operating the operation unit 10, the central processing unit 3 instructs the source unit 2 to output an audio signal. The signal processing circuit 4 is instructed to process the audio signal. As a result, the car audio apparatus 1 can listen to desired music. The central processing unit 3 further listens to the music in this way, and if the music has been broadcast, instructs the display controller 9 to display the channel of the broadcasting station. When the music is reproduced from a recording medium, the display controller 9 is instructed to display information related to the music such as a track number.

  On the other hand, when the display mode in the car audio device 1 is set to the graphic display of the frequency spectrum, the display controller 9 is instructed to display the frequency spectrum detected by the signal processing circuit 4.

  FIG. 2 is a front view showing a graphic display of the frequency spectrum. In this embodiment, one of these four types of graphic displays can be selected.

  Here, the graphic display shown in FIG. 2A is to display a frequency spectrum by rotating a plurality of three-dimensional object shapes O as indicated by arrows A, and the left side is the low frequency side. Is assigned to each object O, and the rotation amount of each object O is set to correspond to the signal level of the corresponding frequency band. Thereby, the left object O rotates at a high speed in an audio signal rich in deep bass, and the right object O rotates at a high speed in an audio signal rich in high sounds.

  In this display, the central processing unit 3 calculates the rotation amount of each object O per unit time based on the detection result of the frequency spectrum obtained from the signal processing circuit 4, and the display controller 9 corresponds to each frequency band based on the calculation result. The rotation of the object O to be instructed is instructed. Further, according to the same instruction, as the signal level in each band is larger, the transparency of the corresponding object O is lowered so that the object O can be clearly seen.

  On the other hand, the graphic display shown in FIG. 2B displays the signal waveform of the audio signal superimposed on the frequency spectrum. That is, in the frequency spectrum in this display, the signal level of each frequency band is displayed in a bar graph shape. In the graphic display shown in FIG. 2B, the signal waveform of the audio signal is displayed in an overlapping manner so that the 0 level of the bar graph shape matches the 0 level of the signal waveform.

  On the other hand, the graphic display shown in FIG. 2C is a so-called dot pattern display. After the signal level detection result of each frequency band related to the frequency spectrum is displayed by dots, the next signal level detection result is displayed. Is also displayed continuously for a certain period of time.

  On the other hand, the graphic display shown in FIG. 2 (D) shows the signal level of each frequency band by display using a line graph.

  The central processing unit 3 displays the frequency spectrum in a display format selected by the user from these four types of displays according to the preset settings.

  On the other hand, when the user instructs the graphic display of the volume, as shown in FIG. 3, a right and left triangular display is formed with a size corresponding to the volume of the left and right channels, thereby displaying the volume graphically. As a result, the car audio apparatus 1 can enjoy music even by such graphic display, and the graphic display improves entertainment in the vehicle.

  The central processing unit 3 changes the graphic display according to the corresponding information D1 when the display of the information D1 related to the vehicle is instructed by the user in the display related to the original function related to entertainment. .

  That is, when the display of the traveling speed is instructed by the user, the central processing unit 3 displays the traveling speed by changing the color of the graphic display according to FIGS. 2 (A) to (D) and FIG. That is, the central processing unit 3 displays the display color of the object O, bar graph, dot, and line in green in FIGS. 2A to 2D when the speed is equal to or less than a certain speed. When the speed exceeds a certain speed, these are displayed in yellow, and when the speed further increases, they are displayed in red. On the other hand, when the display of the engine speed is instructed by the user, the display color is changed in the same manner as the traveling speed as the rotational speed increases. Similarly, the display colors related to the left and right sound volumes shown in FIG. 3 are switched.

  On the other hand, when the display of the front-rear inclination of the vehicle or the left-right inclination of the vehicle is instructed, FIGS. 4A to 4C are compared with FIGS. 2A, 2B, and 2D. As shown in Fig. 5, the graphic displays are tilted to the left and right according to the magnitude and direction of the tilt. Similarly, the display relating to the left and right sound volumes shown in FIG. 3 is tilted.

  On the other hand, when the display of the temperature inside and outside the vehicle is instructed, the central processing unit 3 uses the display color of the background for the temperature outside the vehicle and the object O, bar graph, dot, and line for the temperature inside the vehicle, respectively. Display by display color. That is, when the temperature is low, the temperature is displayed in blue, and the display color is sequentially switched to blue-green-yellow-orange-red as the temperature increases. Similarly, the display colors related to the left and right sound volumes shown in FIG. 3 are switched.

  When the display of the loudness of the inside and outside of the vehicle is instructed, the central processing unit 3 displays the sound outside the vehicle by the background and the sound inside the vehicle by the object O, bar graph, dot, and broken line, respectively. That is, in these cases, the central processing unit 3 inputs the sound outside and inside the vehicle obtained by obtaining with a microphone provided in the vehicle as information D1 relating to the vehicle, and determines the volume of this sound. Also, based on the determination result, when these sounds are above a certain volume, the display color relating to the outside and inside the vehicle is switched to red. Similarly, the display colors related to the left and right sound volumes shown in FIG. 3 are switched. As a result, the car audio device 1 can inform the user of the approach of an emergency vehicle, for example.

(2) Operation of Embodiment In the above configuration, in the car audio apparatus 1 (FIG. 1), the audio signal output from the source unit 2 is processed by the signal processing circuit 4 and then output to the amplification circuit 5, This is used for driving the speaker 6. Thus, the car audio apparatus 1 can enjoy music from various sources.

  In the car audio apparatus 1, music is provided to the user in this way, the volume and frequency spectrum of the audio signal related to the music are detected by the signal processing circuit 4, and the detection result is notified to the central processing unit 3. . In the car audio device 1, when the user instructs the display of the volume, the detection result based on the volume is displayed on the liquid crystal display panel 8 (FIG. 3). When the user instructs display of the frequency spectrum, a graphic display of the frequency spectrum is provided from the liquid crystal display panel 8 according to the display form desired by the user (FIG. 2). Thereby, in the car audio apparatus 1, entertainment property is achieved and music can be enjoyed through vision.

  Thus, by displaying the volume and frequency spectrum on the liquid crystal display panel 8 as information display means relating to music in this way, the car audio apparatus 1 can display the volume and frequency spectrum on the display means by the original display function relating to music. Will be displayed.

  In this way, when the user instructs the display related to the original function and further indicates the display of the information D1 related to the vehicle, the car audio device 1 includes the car audio device 1. Information D1 related to the vehicle is acquired from the controller of the vehicle via the interface 11, and the display on the liquid crystal display panel 8 changes based on the information D1.

  Thereby, in this car audio apparatus 1, the information D1 regarding a vehicle can be confirmed by the change of this display. At this time, the information D1 related to the vehicle is displayed by changing the display of the volume and frequency spectrum, which are the original display, so that the user can also check the original display. More specifically, with respect to the object O (FIG. 2A), in the display of a bar graph or the like due to its rotation, the display location, the display shape, and the area of the display site (FIGS. 2B to 2D). ) And FIG. 3), the volume and frequency spectrum are notified to the user. On the other hand, the information D1 related to the vehicle is notified to the user by the display color and the inclination, thereby impairing the display related to the original function. In addition, various information about the vehicle can be displayed.

  That is, when the display of the traveling speed is instructed by the user, the display colors of the object O, bar graph, dot, broken line, and the like are switched from green to yellow to red as the speed increases. When the display of the front-rear tilt of the vehicle or the left-right tilt of the vehicle is instructed, each graphic display is tilted left and right according to the magnitude and direction of the tilt. When the display of the temperature inside or outside the vehicle is instructed, or when the display of the loudness of the sound inside or outside the vehicle is instructed, the display color of the background or the like is switched according to the temperature.

  As a result, the car audio device 1 can add the meaning of car status display to the display of car audio that was only meaningful as entertainment. Thus, the user can read the behavior of the vehicle by this display even in a passenger seat where various instruments in the driver's seat cannot be read, and safety can be further enhanced. In addition, since this type of display can be stopped as necessary, the display of the information D1 related to the vehicle can be stopped in the case of an obstacle such as driving.

(3) Effects of the embodiment According to the above configuration, various information about the vehicle can be displayed without changing the display related to the original function by changing the display based on the main information according to the information about the vehicle. Can do.

  That is, in this embodiment, the present invention can be applied to a car audio device, and various types of information related to the vehicle can be displayed without impairing the display of main information that is information related to the audio signal.

  More specifically, various types of information about the vehicle can be displayed without impairing the display related to the frequency spectrum of the audio signal and the volume of the audio signal.

  In addition, by making the display change such as a color change and a background change, it is possible to display various information about the vehicle without impairing the display related to the original function.

  In addition, the information related to the vehicle is the traveling speed, which is information related to the behavior of the vehicle, the number of revolutions of the engine, the front / rear and the left / right inclination of the vehicle. With this size, it is possible to sensuously grasp the vehicle situation, the surrounding situation, etc., and use it for safe driving and the like.

  In this embodiment, the vehicle acceleration, the current position of the vehicle, the brightness inside and outside the vehicle, the remaining amount of fuel in the vehicle, and the mileage of the vehicle are applied as information related to the vehicle, and the graphic display is changed accordingly. In this embodiment, the configuration is the same as that of the first embodiment except that the information regarding the vehicle to be displayed is different.

  Further, according to the contents provided for these displays, as described above with respect to the first embodiment, display forms such as display colors and inclinations are applied.

  As in this embodiment, the same effects as those in the first embodiment can be obtained by applying information such as the acceleration of the vehicle and the current position of the vehicle as information relating to the vehicle.

  In this embodiment, information on the current position of the vehicle is applied as information about the vehicle. The information display of the current position is executed by displaying a map in the background. Thereby, in this embodiment, information on the current position is acquired by the car navigation device which is a position detecting means mounted on the vehicle. This embodiment is configured in the same manner as the first embodiment except for these points.

  Even if the information about the vehicle is displayed by the change of the background as in this embodiment, the same effect as in the first embodiment can be obtained.

  In the above-described embodiment, the case where information related to the vehicle is acquired from the controller of the vehicle is described. However, the present invention is not limited to this, and the information related to the vehicle is acquired from various information acquisition means. be able to. That is, for example, the rotational speed of the engine may be detected from ignition noise mixed in the power source. Further, the acceleration and inclination of the vehicle may be detected by a built-in acceleration sensor.

  Further, in the above-described embodiment, the case of displaying information on the vehicle by changing the color, the inclination, and the background is described. However, the present invention is not limited to this, and the change of the character color, the size of the character, the wallpaper These pieces of information may be displayed by changes in display or the like. Further, these pieces of information may be displayed by temporarily stopping or blinking the graphic display, and further by enlarging or reducing.

  Further, in the above-described embodiment, the case where the present invention is applied to a car audio device and the display of main information is a display related to music has been described. However, the present invention is not limited to this, for example, to a car navigation device. In addition, when the display of the main information is in the direction of the destination, the present invention can be widely applied to the case where the display of the main information is a message display, etc.

  The present invention can be applied to a car audio device.

1 is a block diagram showing a car audio apparatus according to Embodiment 1 of the present invention. It is a front view which shows the display of the frequency spectrum of the car audio apparatus which concerns on Example 1 of this invention. It is a top view which shows the display of the volume of the car audio apparatus of FIG. It is a front view which shows the deformation | transformation of the display by the information regarding a vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Car audio apparatus, 2 ... Source part, 3 ... Central processing unit, 4 ... Signal processing circuit, 8 ... Liquid crystal display panel, 11 ... Interface

Claims (9)

In the in-vehicle device that forms the display by the main information on the display means by driving the display means by the main information acquired by the main information acquisition means,
Having vehicle information acquisition means for acquiring information about the mounted vehicle;
The in-vehicle device, wherein the display by the main information is changed according to the information on the vehicle. It has an amplifier circuit that drives a speaker with an audio signal,
The in-vehicle device according to claim 1, wherein the main information obtained by the main information acquisition unit is information related to the audio signal. The in-vehicle device according to claim 2, wherein the display based on the main information is a display related to a frequency spectrum of the audio signal. The in-vehicle device according to claim 2, wherein the display based on the main information is a display related to a volume of the audio signal. The in-vehicle device according to claim 1, wherein the display change based on the main information is a color change. The in-vehicle device according to claim 1, wherein the display change by the main information is a background change. The in-vehicle device according to claim 1, wherein the information about the vehicle is information about the behavior of the vehicle. Having position detection means for detecting the current position;
The in-vehicle device according to claim 1, wherein the main information obtained by the main information acquisition unit is information on a current position obtained by the position detection unit. In the display method of the in-vehicle device that forms the display by the main information on the display means by driving the display means by the main information acquired by the main information acquisition means,
A display method for an in-vehicle device, wherein the display based on the main information is changed according to information on the vehicle mounted.

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