JP2005280580A - Control device of on-vehicle acoustic instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To control sound volume and musical composition or the like of an on-vehicle acoustic instrument according to an own-vehicle position, time zone, and weather or the like. <P>SOLUTION: The control device is equipped with an on-vehicle acoustic instrument 2 which is mounted on the vehicle, and has at least a speaker 2d outputting sound so as to adjust the sound volume, a GPS module 6 detecting the current position of the vehicle, and a sound volume control means 3a. The sound volume control means 3a controls the sound volume of the sound (voice) outputted from the speaker 2d to be prescribed level or less when it is determined that the current position of the own vehicle detected by the GPS module goes into the prescribed sound volume restricted area A. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a control device for an on-vehicle acoustic device that variously controls the volume and the like of an on-vehicle acoustic device mounted on a vehicle such as an automobile according to a time zone, a region, or the like.

  In general, this type of in-vehicle audio equipment includes various types of video or audio recording media such as a DVD (Digital Versatile Disc), a CD (Compact Disc), an MD (Mini-Disc), and a cassette tape, a radio, There are audio video apparatuses that receive televisions and the like, and by using these in-vehicle audio devices, comfortable driving can be enjoyed.

  And this type of conventional in-vehicle audio equipment has a technology that makes it easier to hear the surrounding sound by lowering the output volume of the in-vehicle audio equipment than during normal operation when the car is driven backwards, such as in a garage. (See, for example, Patent Document 1).

  In addition, a technique for automatically adjusting the volume of an on-vehicle acoustic device according to the vehicle speed is known (see, for example, Patent Document 2).

Further, there has been proposed an audio device that prevents the inconvenience to people outside the vehicle by reducing the volume of the in-vehicle acoustic device when the vehicle window or door is open and the traveling speed is low (for example, Patent Documents). 3).
JP 2002-71823 A JP 2002-362241 A JP 2002-19533 A

  However, in such a conventional in-vehicle acoustic device, the volume, music, etc. of the in-vehicle acoustic device cannot be controlled according to the position of the vehicle, the time zone such as midnight, the weather, and the like.

  For this reason, even in the vicinity of a predetermined facility such as a home or in a time zone such as late at night, the volume of the in-vehicle acoustic device is not reduced, and there is a risk of disturbing the surroundings by music such as rock.

  The present invention has been made in view of such circumstances, and the purpose of the present invention is an in-vehicle audio device capable of controlling the volume, music, etc. of the in-vehicle audio device according to the vehicle position, time zone, weather, and the like. It is to provide a control device.

  According to the first aspect of the present invention, there is provided an in-vehicle acoustic device that is mounted on a vehicle and includes at least an acoustic output unit that outputs sound so that the volume can be adjusted, vehicle position detection unit that detects a current position of the vehicle, and vehicle position detection Volume control means for controlling the volume of the sound output from the sound output means to a predetermined level or less when it is determined that the current vehicle position detected by the means has entered a predetermined area. It is the control apparatus of the vehicle-mounted audio equipment characterized by having carried out.

  According to a second aspect of the present invention, there is provided an on-vehicle acoustic device that is mounted on a vehicle and includes at least a sound output unit that outputs sound so that the volume can be adjusted, a current time detection unit that detects a current time, and a current time detection unit. Volume control means for controlling the volume of sound output from the sound output means to a predetermined level or less when it is determined that the detected current time is within a predetermined time zone. It is the control apparatus of the vehicle-mounted audio equipment characterized by this.

  The invention according to claim 3 is a hybrid car in which the vehicle includes an engine and a motor as drive sources, and when it is determined that the vehicle position has entered a predetermined area, or the current time is a predetermined time. The on-vehicle acoustic device according to claim 1 or 2, further comprising drive source control means for controlling the vehicle to be driven only by the motor when it is determined that the vehicle is in the belt. It is a control device.

  According to a fourth aspect of the present invention, when the sound volume control means determines that the vehicle is out of the predetermined area, or when it is determined that the current time is out of the predetermined time zone, the sound output means is provided. 4. The on-vehicle acoustic device control device according to claim 1, further comprising a sound volume restoration function that returns the sound volume to a state before being controlled to a predetermined level or less.

  In the invention according to claim 5, when it is determined that the vehicle position detected by the vehicle position detecting means has entered a predetermined area instead of the volume control means, or the current time is within a predetermined time zone. 5. A music piece changing means for changing the sound output from the sound output means to a predetermined music piece or a sound effect when it is determined that the sound output means is included. 5. It is a control apparatus of in-vehicle acoustic equipment given in any 1 paragraph.

  According to a sixth aspect of the present invention, there is provided a rain sensor for detecting rain, and a music control means for changing the sound output from the sound output means to a predetermined music or sound effect when the rain is detected by the rain sensor. It is equipped with this, It is a control apparatus of the vehicle-mounted audio equipment of any one of Claims 1-5 characterized by the above-mentioned.

  The invention according to claim 7 includes a setting device for setting at least one of the predetermined area, predetermined time, predetermined music, and predetermined sound effect. It is a control apparatus of the vehicle-mounted audio equipment of description.

  According to the present invention, when a vehicle such as an automobile enters a predetermined area around a predetermined facility such as a home, or enters a predetermined time zone such as at night, the volume of the in-vehicle audio device is reduced to a predetermined level or locked. Since the music is changed to predetermined music such as classical music or sound effects, it is possible to prevent or reduce inconveniences around the home due to the volume or music of the in-vehicle audio equipment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[First Embodiment]
FIG. 1 is a functional block diagram showing the overall configuration of a control apparatus 1 for in-vehicle acoustic equipment according to the first embodiment of the present invention. This on-vehicle acoustic device control device 1 includes an on-vehicle acoustic device 2 mounted on an automobile which is an example of a vehicle, a controller 3 which is a control device, a rainfall sensor 4, a VICS unit 5, and a GPS module 6.

  The in-vehicle audio device 2 includes an in-vehicle audio device having a playback device 2a for reproducing various video or audio recording media such as DVD, CD, MD, and cassette tape, and an audio / video device for receiving radio broadcast, television broadcast, and the like. However, in this embodiment, a case where an acoustic device having the playback device 2a is used as the in-vehicle acoustic device 2 will be described.

  The in-vehicle acoustic device 2 includes an electronic volume 2b that electronically adjusts the volume of the audio (acoustic) signal output from the playback device 2a, an amplifier 2c that amplifies the audio signal adjusted by the electronic volume 2b, and the amplifier 2c. The speaker 2d which outputs the audio | voice signal amplified by this as an audio | voice (sound) is provided.

  The rain sensor 4 is a sensor that detects rain. The VICS unit 5 receives real-time road traffic information related to road traffic such as traffic jams and traffic regulations by radio wave beacons, optical beacons, FM multiplex broadcasting, and displays them on the monitor 11 with characters, simple figures, and the like.

  The GPS module 6 measures the current position of a moving body such as an automobile by GPS (Global Positioning System Global Positioning System). For example, the GPS module 6 receives navigation radio waves wirelessly transmitted to the ground from four GPS satellites. The current position of the own vehicle (own vehicle position) is detected.

  That is, the GPS module 6 receives, for example, radio wave transmission times and orbit information about the earth from four GPS satellites as navigation radio waves, and measures the arrival time of the received radio waves with a clock built in the GPS module 6. The distance between the receivers is detected. The greatest feature of this GPS system is that it can detect the current position of a moving body such as an automobile anywhere in the world.

  The controller 3 is a central processing unit (CPU) having a ROM or RAM memory 7, and a volume control means 3 a and music that are executed by controlling the entire system in accordance with a control processing program and data stored in the memory 7. An equal control means 3b is provided.

  Further, the controller 3 is connected to a timer 8, an input device 9 such as a keyboard and a touch panel, which is an example of a setting device, a monitor 11 such as an HDD (Hard Disc Drive) 10 and an LCD (Liquid Crystal Display). Map information is also recorded in the memory 7, and music information of various genres of music and various sound effect information such as brook sound and breeze are recorded in the HDD 10. The timer 8 is an example of a current time detecting means for detecting the current time, and is used to set a predetermined time by the user as appropriate, such as midnight described later.

  The volume control means 3a reads the vehicle position from the GPS module 6 and reads map information from the memory 7 to determine whether or not the vehicle position has entered a predetermined restricted area such as a predetermined volume. By forcibly reducing the electronic volume 2b of the in-vehicle audio device 2 below an arbitrary volume level preset by the user when it is determined that the vehicle position has entered a restricted area such as a predetermined volume. The sound volume output from the speaker 2d is reduced. The volume level to be reduced can be appropriately input by the user from the input device 9 and set in the volume control means 3a and the music control means 3b.

  Further, when the volume control means 3a determines that the current time read from the timer 8 is within a predetermined volume limit time zone (for example, from 9:00 pm to 6:00 am), It also has a function of reducing the volume 2b below the volume level set in advance by the user.

  As shown in FIG. 2, the volume restriction area A is an area included within a predetermined radius from a specific facility center O such as a home H or a drive-through store, and the volume restriction area A is around a specific facility such as a home. While the map is displayed on the monitor 11, it is set by arbitrarily inputting it from the input device 9 by the user, and the position, area, etc. of the volume restricted area A can be arbitrarily set by the user. In FIG. 2, the symbol R indicates a road, the white arrow indicates the own vehicle position, and the forward direction of the white arrow indicates the traveling direction of the own vehicle.

  In addition, the time limit such as the volume can be arbitrarily input by the user from the timer 8 and set in the music control unit 3b.

  Further, the volume control means 3a has a volume return function for returning the electronic volume 2b to a volume before being reduced to a predetermined volume level or less when it is determined that the vehicle position has departed from the volume restriction area A or the voice. Yes.

  FIG. 3 is a flowchart of the volume control program, and S1 to S3 in the figure indicate the steps in the flowchart.

  That is, when the volume control means 3a starts and starts the volume control program, first, in S1, it is determined whether or not the own vehicle has entered a predetermined volume restriction area A.

  That is, the volume control means 3a first reads out the current position (own vehicle position) of the own vehicle from the GPS module 6, and from the memory 7, a map of a predetermined area including the own vehicle position, a predetermined volume restriction area A, and , And it is determined whether or not the vehicle position has entered the volume restriction area A as shown in FIG.

  If it is determined in S1 that Yes, that is, the current position of the vehicle is entering the volume restriction area A, the volume is reduced to a predetermined volume level or less in next S2.

  Thereby, when the own vehicle approaches a specific facility such as the home H to a predetermined distance, the volume of the sound being output from the speaker 2d of the in-vehicle acoustic device 2 or the sound output from the speaker is equal to or lower than the predetermined volume level. Since it is forcibly squeezed, it is possible to prevent or reduce inconvenience caused by noise around a specific facility such as home H.

  If NO in S1, that is, if it is determined that the current position of the vehicle has not entered the volume restriction area A, the process proceeds to S3, where the current time is a predetermined volume restriction time zone, for example, the afternoon It is determined whether it is within the time zone from 9:00 am to 6:00 am. If it is Nо, the process returns to S1 again. On the other hand, in the case of Yes, the process also proceeds to S2, where the volume of the voice or music being output from the speaker 2d of the in-vehicle acoustic device 2 or the volume of the voice or music output from now is reduced to a predetermined volume level or less.

  Therefore, even when the current time is within the predetermined volume limit time zone, the voice output from the speaker 2d of the in-vehicle acoustic device 2 can be reduced to a predetermined volume level or lower, so that the home H or the like can be specified. The quietness around the facility can be improved.

  When the vehicle position leaves the volume restriction area A or the volume restriction time zone, the volume is returned to the volume before the electronic volume 2b is reduced below the predetermined volume level by the volume restoration function.

  Therefore, the vehicle is limited to a predetermined volume level or less only when the vehicle position enters the predetermined volume restriction area A or when the vehicle is in the volume restriction time zone, and otherwise it is normally operated by the user. The sound volume of the in-vehicle acoustic device 2 can be enjoyed.

  On the other hand, when the music control means 3b detects rain via the rain sensor 4, the music or the sound effect selected as a music to be output in advance by the user when it rains or a required sound effect of the speaker of the in-vehicle audio device 2 is displayed. It has a function of automatically outputting from 2d, or forcibly switching the sound being output to these pre-selected music and sound effects.

  Further, the music etc. control means 3b has a traffic jam presence / absence judgment function and a music etc. switching function.

  When the traffic information read from the VICS unit 5 detects that the traffic information is traffic information, for example, by voice recognition means or the like, the traffic congestion presence / absence determination function reads the vehicle position from the GPS module 6 and the vehicle position is determined as traffic congestion information. It is determined whether or not the vehicle travels within the traffic jam area indicated by, while calculating the traveling speed of the vehicle based on the Doppler frequency of the navigation radio wave of the GPS artificial satellite, the traveling speed of the vehicle is below a predetermined speed When detected, this function determines that the vehicle is involved in a traffic jam.

  The music switching function is a music or sound effect to be output from the in-vehicle acoustic device 2 when it encounters a traffic jam in advance when it is determined by the traffic jam presence / absence judgment function that the vehicle is involved in the traffic jam. A function for forcibly outputting a predetermined musical piece or sound effect selected by the user from the speaker 2d of the in-vehicle acoustic device 2, or forcibly switching the sound being output to the previously selected musical piece or sound effect. It is. As described above, the sound effect such as the music or the murmuring sound of the stream that is forcibly switched by the music control means 3b is selected from among a large number of music and sound effects recorded on the HDD 10 by the user operating the input device 9. It is set by selecting.

  Therefore, when the weather is raining, the music or sound effect that the user desires to listen to and the selected music or sound effect are output from the in-vehicle acoustic device 2 in the rainy weather. Can release the mood and improve comfort.

  Also, even when the vehicle is involved in traffic jams, the user's favorite music and sound effects are output from the in-vehicle acoustic device 2, so that the mental irritation of the users due to traffic jams is calmed down, and mental stability It is possible to improve traffic safety.

  In the present invention, the volume control means 3a may be replaced with a music etc. control means 3b. That is, when it is determined that the position of the vehicle is in the volume restriction area A, or the current time is within the volume restriction time zone, for example, the music piece control means 3b. The sound or the sound such as music output from the playback device 2a is forcibly switched to the music or sound effect of the music set in advance by the user, and the music or sound effect is output from the speaker 2d of the in-vehicle acoustic device 2. You may give the function to.

  The music to be switched can be set by the user operating the input device 10 in advance from among a large number of music and sound effects recorded in the HDD 10 to select arbitrary music and sound effects.

  Note that when the automobile is a hybrid car having an engine and a motor as its drive sources, drive source control means may be provided. That is, when the drive source control means determines that the vehicle position is entering the volume limit area A or determines that the current position is within the volume limit time zone, only the motor is used as the drive source. You may control to do.

  According to this, when the vehicle position enters the predetermined volume restriction area A or enters the predetermined volume restriction time zone, the vehicle is driven only by a motor whose driving sound is quieter than the engine. Therefore, it is possible to improve the quietness of driving in a predetermined volume restricted area A or volume restricted time zone.

The functional block diagram of the control apparatus of the vehicle-mounted audio equipment which concerns on 1st Embodiment of this invention. The schematic diagram which shows the volume restriction | limiting area set by the input device of the control apparatus of the vehicle-mounted audio equipment shown in FIG. The flowchart of the volume restriction | limiting process program performed by the volume control means of the control apparatus of the vehicle-mounted audio equipment shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Control apparatus of in-vehicle audio equipment 2 In-vehicle audio equipment 3 Controller 3a Volume control means 3b Music etc. control means 4 Rain sensor 5 VICS unit 6 GPS module

Claims (7)

In-vehicle audio equipment that is mounted on a vehicle and includes at least sound output means for outputting sound so that the volume can be adjusted;
Vehicle position detection means for detecting the current position of the vehicle;
Volume control means for controlling the sound volume output from the sound output means to a predetermined level or less when it is determined that the current vehicle position detected by the vehicle position detection means has entered a predetermined area. When,
The control apparatus of the vehicle-mounted audio equipment characterized by comprising. In-vehicle audio equipment that is mounted on a vehicle and includes at least sound output means that outputs sound so that the volume can be adjusted;
Current time detection means for detecting the current time;
A volume control means for controlling the volume of the sound output from the sound output means when the current time detected by the current time detection means falls within a predetermined time zone;
The control apparatus of the vehicle-mounted audio equipment characterized by comprising. The vehicle is a hybrid car equipped with an engine and a motor as its drive source,
A drive source that controls the vehicle to be driven only by the motor when it is determined that the vehicle position has entered a predetermined area or the current time is determined to be within a predetermined time zone. Control means,
The on-vehicle acoustic device control device according to claim 1, further comprising: When the volume control means determines that the vehicle has left the predetermined area or when the current time is determined to have left the predetermined time zone, the volume of the sound output means is reduced to a predetermined level or less. The on-vehicle acoustic device control device according to any one of claims 1 to 3, further comprising a volume return function for returning to a state before the control. Instead of the volume control means,
When it is determined that the vehicle position detected by the vehicle position detection means has entered a predetermined area, or when it is determined that the current time is within a predetermined time zone, the sound output means outputs Change means for changing the sound to be a predetermined music or sound effect,
It has equipped, The control apparatus of the vehicle-mounted audio equipment of any one of Claims 1-4 characterized by the above-mentioned. A rain sensor for detecting rain;
When the rain sensor detects rain, the music and the like control means for changing the sound output from the sound output means to a predetermined music or sound effect,
It has equipped, The control apparatus of the vehicle-mounted audio equipment of any one of Claims 1-5 characterized by the above-mentioned. A setter for setting at least one of the predetermined area, predetermined time, predetermined music, and predetermined sound effect;
It has equipped, The control apparatus of the vehicle-mounted audio equipment of any one of Claims 1-6 characterized by the above-mentioned.

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