JP2007261526A - VEHICLE CONTROL DEVICE AND INFORMATION COMMUNICATION SYSTEM - Google Patents

Abstract

A vehicle control device capable of controlling an in-vehicle device in accordance with the tone of music reproduced by a car audio, and an information communication system for realizing the same.
An attribute acquisition unit that acquires an attribute based on the tone of a song played by a car audio, and a control unit 73 that controls an in-vehicle device based on the attribute acquired by the attribute acquisition unit. The vehicle control apparatus 10 characterized by these. The vehicle control device 10 includes a vehicle behavior detection unit 20 that detects a vehicle behavior, and a learning unit 72 that learns a correlation between the attribute and the vehicle behavior detected by the vehicle behavior detection unit 20.
[Selection] Figure 1

Description

  The present invention relates to a vehicular control device, and more particularly to a vehicular control device that controls in-vehicle devices in accordance with the tone of music reproduced by car audio.

  Conventionally, it is generally known that the physiological state of a driver changes depending on the tone of music played by car audio. When an up-tempo song is played, the speed is too high, or conversely, a slow-tempo song is played. A scene where driving operation is relatively delayed when regenerated is assumed.

On the other hand, a car audio system that changes the output of car audio based on the driver's biological information is known (for example, see Patent Document 1). In this system, an up-tempo song is played when a driver's sleep state is detected, or a slow-tempo song is played when a driver's frustrating state is detected.
JP 2004-254750 A

  However, in the above-described conventional system, the music to be played is automatically changed, and there are cases where it does not follow the driver's will. Therefore, it is desired to suppress inconvenience due to changes in the physiological state (or mental state) of the driver due to music without changing the reproduced music and the output mode itself.

  The present invention is for solving such problems, and a vehicle control device capable of controlling an in-vehicle device in accordance with the tone of music reproduced by car audio, and for realizing the same. The main purpose is to provide an information communication system.

  In order to achieve the above object, a first aspect of the present invention is an attribute acquisition unit that acquires an attribute based on the tone of a song reproduced by car audio, and an in-vehicle device based on the attribute acquired by the attribute acquisition unit And a control means for controlling the vehicle.

  In the first aspect of the present invention, the in-vehicle device is controlled in accordance with the attribute of the music being reproduced by the car audio. This attribute relates to the tune, and changes in the driver's physiological state can be roughly classified according to the tune. Therefore, by controlling the in-vehicle device based on this attribute, it is possible to suppress inconvenience due to changes in the driver's physiological state (or mental state) due to music.

  Further, in the first aspect of the present invention, there may be provided storage means for storing music and attributes in association with each other, and the attribute acquisition means may be means for acquiring the attributes by searching the storage means. Alternatively, a communication unit that performs road-to-vehicle communication may be provided, and the attribute acquisition unit may be a unit that acquires an attribute by road-to-vehicle communication performed by the communication unit.

In the first aspect of the present invention, the attribute is preferably an attribute that is pre-classified based on the influence of the music tone on the vehicle behavior. In the first aspect of the present invention, preferably, the vehicle behavior is Vehicle behavior detection means, and learning means for learning the correlation between the attribute and the vehicle behavior detected by the vehicle behavior detection means. The control means is based on the correlation learned by the learning means. The means for performing control associated with the vehicle behavior having a high correlation with the attribute acquired by the attribute acquisition means.

  In the first aspect of the present invention, preferably, communication means for performing road-to-vehicle communication is provided, and the control means acquires the attribute based on the correlation between the attribute acquired using the communication means and the vehicle behavior. Means for performing control associated with vehicle behavior having a high correlation with the attribute acquired by the means. The communication device according to claim 6 and the communication device according to claim 3 may be the same.

  In the first aspect of the present invention, the control unit preferably performs control based on the correlation learned by the learning unit when the number of learning times of the learning unit is equal to or greater than the predetermined number, and the number of learning times is predetermined. If the number is less than the number of times, the communication means performs control based on the correlation acquired by road-to-vehicle communication.

  Further, in the first aspect of the present invention, the control means is associated with the specific music when the music reproduced by the car audio corresponds to any of a plurality of specific music prepared in advance. It may be a means for performing control.

  In the first aspect of the present invention, the control means is means for performing at least one of vehicle drive control, a notification operation to the driver, and a change in the display mode of the in-vehicle display terminal.

  In the first aspect of the present invention, the control means may be means for changing the color and / or icon form relating to the display of the in-vehicle display terminal.

  In the first aspect of the present invention, the vehicle behavior may be replaced with a driving operation.

  According to a second aspect of the present invention, there is provided an information communication system comprising the vehicle control device according to the first aspect of the present invention and an information communication center provided with a center communication means for communicating with each vehicle control device. Each vehicle control device transmits the correlation learned by the learning means to the information communication center, and the information communication center includes a database created based on the correlation received from each vehicle control device. The information communication system is characterized in that a correlation between attributes stored in a database and vehicle behavior is transmitted to each vehicle.

  ADVANTAGE OF THE INVENTION According to this invention, the control apparatus for vehicles which can control a vehicle-mounted apparatus according to the music tone reproduced | regenerated by a car audio, and the information communication system for implement | achieving this can be provided.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings.

  Hereinafter, an embodiment of a vehicle control device and an information communication system according to the present invention will be described with reference to FIGS. FIG. 1 is a diagram illustrating an example of the overall configuration of a vehicle control device 10 and an information communication center 100 according to an embodiment of the present invention. The information communication system according to the present invention is realized by the vehicle control device 10 mounted on a plurality of vehicles and the information communication center 100.

  First, the vehicle control device 10 will be described. The vehicle control device 10 includes, for example, a vehicle behavior detection sensor 20, a communication device 30, a braking / driving force output device 40, a navigation device 50, and a car audio 80 as main components. The navigation device 50 functions around a navigation device electronic control unit (hereinafter referred to as navigation device ECU) 70. Communication between devices in the vehicle in the following description is performed using an appropriate communication protocol such as CAN (Controller Area Network).

  As the vehicle behavior detection sensor 20, for example, a vehicle speed sensor, a G sensor, an accelerator pedal sensor, and the like included in the vehicle are commonly used. The detection data of the vehicle behavior detection sensor 20 is transmitted to the navigation device ECU 70 and used for learning the correlation between the attribute based on the tune and the vehicle behavior, as will be described later.

  The communication device 30 is a device for performing road-to-vehicle communication, and includes, for example, a communication antenna and a communication module that can transmit and receive using a radio wave network of a mobile phone. Various methods for road-to-vehicle communication are already known and are not limited to the above-described methods. For example, a method of receiving a radio beacon or an optical beacon from an infrastructure provided at a road end may be used, or a method of receiving FM multiplex broadcasting may be used.

  The braking / driving force output device 40 shares a device that outputs braking force and driving force for traveling by normal vehicle control based on brake operation or accelerator operation. For example, it consists of a mechanical brake, an engine, an electric motor, a transmission, and the like. The braking / driving force output device 40 outputs braking force or driving force by an instruction signal from the navigation device ECU 70 in addition to (or instead of) the braking force or driving force output based on the brake operation or the accelerator operation.

  The navigation device 50 includes, for example, a GPS (Global Positioning System) receiver 51, an input / display device 52, a speaker 53, a storage unit 60, and a navigation device ECU 70.

  The GPS receiver 51 is a receiving device that detects the current position (latitude, longitude, altitude, etc.) of the host vehicle. Data detected by the GPS receiver 51 is transmitted to the navigation device ECU 70 as needed. The input / display device 52 is, for example, a display device that employs a VGA (Video Graphics Array) as a graphic system to display an image including a moving image and allows a user to perform various input operations as a touch panel. The input / display device 52 detects a change in voltage caused by a user touching the surface of the input / display device 52 and recognizes the position where the touch operation is performed. In addition, the specific aspect of the input device with respect to the navigation apparatus 50 is not restricted to this, You may further provide the input device which can input an audio | voice, and may further provide the input remote controller. Some of these may be used.

  The storage unit 60 is a readable / writable storage medium such as an HDD (Hard Disk Drive), and stores map data 61, music information 62, correlation information 63, and the like. The music information 62 stores music reproduced by the car audio 80 and various information related to each music as will be described later.

  The navigation device ECU 70 is a computer unit in which, for example, a CPU, a ROM, a RAM, and the like are connected to each other via a bus (not shown), and includes a communication port, a timer, a counter, and the like. In the navigation device ECU 70, as a function of a normal navigation device, an input signal input from the GPS receiver 51 is basically used, and correction is appropriately performed based on detection data from a vehicle speed sensor, a yaw rate sensor, etc. provided in the vehicle, and Specify the current location. Then, an optimal route from the identified current position to the destination input to the input / display device 52 is determined with reference to the map data 61, and route guidance is performed by the input / display device 52 and the speaker 53. The characteristic functions of the navigation device ECU 70 according to the present invention will be described later.

  The car audio 80 includes, for example, a CD changer, a speaker, an input unit, and the like, and plays back music stored on a CD. Also, the music recorded on the CD set in the CD changer is stored in the storage unit 60 as the music information 62 together with the attribute based on the music title and music tone, and can be reproduced later.

  Hereinafter, functions characteristic of the present invention will be described. The navigation device ECU 70 includes an attribute acquisition unit 71, a correlation learning unit 72, and a control content determination unit 73 as functional blocks realized by using the hardware configuration described above.

  The attribute acquisition unit 71 instructs the communication device 30 to acquire information on the CD from the information communication center 100 based on the serial number associated with the CD set in the car audio 80, and acquired by communication. The attributes based on the song name, artist name, and song tone are stored in the storage unit 60 as the music information 62 together with the song. In addition, the attribute acquisition unit 71 searches the music information 62 created in this way, thereby specifying an attribute based on the tone of the song currently being played by the car audio 80. Note that the attributes based on the tune are classified into, for example, (A) a good song, (B) a bright song, (C) a quiet song, (D) a song to be healed. This attribute is classified in advance based on the influence on the vehicle behavior.

  The correlation learning unit 72 learns the correlation between the attribute and the vehicle behavior based on the music tone. Specifically, for example, a tendency about (α) vehicle speed, (β) vehicle speed change amount, and (γ) accelerator opening increase amount when learning a song with each attribute is learned. That is, the correlation between the attribute and the vehicle behavior such as (α) to (γ) is learned.

  More specifically, (α) when the average value of the vehicle speed when listening to a song with a certain attribute deviates from the total average value of the driver's vehicle speed by a predetermined speed or more, the attribute is It is learned that the vehicle speed tends to increase when listening to the given song. This learning is performed, for example, every predetermined time (a period in which the total time of listening to a song to which the attribute is given is a predetermined time is defined as one learning period; the same applies hereinafter).

  In addition, (β) when the product obtained by multiplying the vehicle speed fluctuation width and the frequency at the predetermined time when listening to a song with a certain attribute is a predetermined value or more, the song with the attribute is It is learned that the vehicle speed tends to increase when listening.

  In addition, when listening to a song with (γ) a certain attribute, an operation in which the amount of increase in the accelerator opening at the reference time is a predetermined amount or more (hereinafter referred to as a sudden accelerator operation) is within the predetermined time. Is detected more than a predetermined number of times, it is learned that the sudden accelerator operation tends to be frequently performed while listening to the music with the attribute.

  The correlation learned in this way is stored in the storage unit 60 as the correlation information 63 together with the number of times of learning (for example, how many times the predetermined time has elapsed), and is stored in the information communication center 100 each time the storage is performed. Sent. FIG. 2 is a diagram illustrating an example of learning results stored as the correlation information 63. The correlation information 63 includes information learned in the vehicle control device 10 as described above (hereinafter referred to as vehicle-side correlation information) and information acquired from the information communication center 100 (hereinafter referred to as center-side correlation information). Is also stored.

  The control content determination unit 73 refers to the correlation information 63 using the attribute of the song currently being played by the car audio 80 specified by the attribute acquisition unit 71, acquires the tendency of the vehicle behavior corresponding to the attribute, Control of in-vehicle equipment corresponding to the acquired tendency of vehicle behavior. Here, regarding the correlation information 63, which of the vehicle-side correlation information and the center-side correlation information is adopted, for example, the vehicle-side correlation information is adopted when the number of learning times is a predetermined number or more. That's fine. This is because it is more preferable to perform control based on information originally customized for each driver, and when the number of learning times is equal to or greater than a predetermined number, the reliability of the vehicle-side correlation information is sufficiently high. Based on thoughts.

  Hereinafter, the control of the in-vehicle device corresponding to the tendency of the vehicle behavior will be described with reference to the example of FIG. Here, the vehicle side correlation information is adopted.

  (A) It is learned that when listening to a song having a good twist, (α) the vehicle speed tends to increase and (γ) the sudden accelerator operation tends to be performed frequently. In this case, for example, an instruction signal is output to the braking / driving force output device 40 so as to reduce the rate of increase of the throttle valve opening relative to the increase of the accelerator opening. In addition, the speaker 53 is used to output a voice message such as “It looks like it ’s not good, but be careful about speed”.

  (B) When listening to a bright song, it is learned that (γ) a sudden accelerator operation tends to be performed frequently. In this case, for example, an instruction signal is output to the braking / driving force output device 40 so as to reduce the rate of increase of the throttle valve opening relative to the increase of the accelerator opening. In addition, the speaker 53 is used to output a voice message such as “Let the accelerator operation be performed slowly”.

  (C) When listening to a quiet song, no special vehicle behavior tendency is learned, so no special control is performed.

  (D) When listening to a song to be healed, it is learned that (β) the vehicle speed change tends to increase. In this case, for example, an instruction signal is output to the braking / driving force output device 40 so as to reduce an increase rate and a decrease rate of the throttle valve opening with respect to an increase in the accelerator opening. In addition, the speaker 53 is used to output a voice message such as “It seems that you are not feeling well, but please drive carefully.”

  As described above, in the vehicle control apparatus 10 of the present invention, the car audio 80 listens to the currently playing song with reference to the correlation information 63 that associates the attribute based on the tone of the song with the tendency of the vehicle behavior. Control according to the vehicle behavior tendency at the time of driving is performed. As a result, appropriate control can be performed according to the vehicle behavior tendency, thereby contributing to safe driving and the like.

  Next, the information communication center 100 will be described. The information communication center 100 includes a center side communication device 110, an information processing computer 120, and a database 130.

  The center-side communication device 110 may be any device as long as it can communicate with the communication device 30 of the vehicle control device 10.

  The information processing computer 120 searches the database 130 using the serial number attached to the CD transmitted from the vehicle control device 10 and obtains information on the CD (song title, artist name, the above attributes, etc.) on the vehicle. To the control apparatus 10 for transmission.

  Further, the information processing computer 120 stores in the database 130 the center side correlation information created by integrating the correlations transmitted from the respective vehicle control devices 10 (for example, by performing a voting process). The center-side correlation information stored in this way is transmitted to the vehicle control device 10 at, for example, every predetermined period (such as once a day). This transmission may be performed every time a request signal is received from the vehicle control device 10.

  Note that the database 130 stores a song and an attribute based on the tone of the song in advance in association with each other. This attribute information may be updated, for example, when a new CD is released.

  As described above, according to the vehicle control device 10 and the information communication center 100 of the present embodiment, the attribute based on the tone of the music being reproduced by the car audio is specified, and the vehicle behavior having a high correlation with the attribute is dealt with. In-vehicle devices are controlled in each vehicle control device 10. As a result, it is possible to perform appropriate control of the in-vehicle device according to the tone of the music being played back by the car audio, and to suppress inconvenience due to changes in the driver's physiological state (or mental state) caused by the music. Can eventually contribute to safe driving. In addition, since the music being played back is not changed, the car audio is not controlled against the driver's will.

  As mentioned above, although the best mode for carrying out the present invention has been described using one embodiment, the present invention is not limited to such one embodiment, and within the scope not departing from the gist of the present invention, Various modifications and substitutions can be made to the above-described embodiment.

  For example, as a specific example of in-vehicle device control, the braking / driving force output device 40 is controlled or a voice message is output by the speaker 53, but the present invention is not limited to this. For example, (α) as a control corresponding to the tendency for the vehicle speed to increase in the above embodiment, the entire color related to the display of the input / display device 52 is changed to a cold color system, or the position of the vehicle related to the route guidance display is changed. The icon to be displayed may be an image of a turtle, for example, and an effect of calming the driver's mental state may be expected.

  Further, if all of the information to be used is stored in the storage unit 60, the information communication center 100 and the communication device 30 are not essential components. In this case, the attribute based on the music tone is exemplified as acquiring the data stored in the database 130, but may be detected by some music analysis on the vehicle control device 10 side. Furthermore, the control may be limited to songs stored in the storage unit 60 in advance.

  In addition, the control of the in-vehicle device is not limited to the attribute based on the tune, but the specific tune that has a specific influence on the vehicle behavior is recognized by the vehicle control device 10 and the specific tune is reproduced. Control different from the control example of the above embodiment may be performed. For example, if a tendency that the vehicle speed is remarkably increased when a specific song is being played is learned, when the song is played, the rate of increase of the throttle valve opening relative to the increase of the accelerator opening is set. It is conceivable to output an instruction signal to the braking / driving force output device 40 so as to further reduce the above-described embodiment.

  In addition, the relationship between the attribute based on the tune and the vehicle behavior is learned to control the in-vehicle device, but the relationship between the attribute based on the tune and the driving operation is learned to control the on-vehicle device. It is good. For example, when listening to a song with each attribute, learn the tendency of the average accelerator operation amount, the accelerator operation frequency, the brake operation frequency, etc., and perform control to suppress inconvenience due to such tendency Also good. Specifically, when a tendency that the accelerator operation frequency and the brake operation frequency are high is learned while listening to a song with a certain attribute, the accelerator is opened when a song with the same attribute is being played. Control that reduces the sensitivity of the throttle valve opening to the degree is conceivable.

  Further, as the correlation information 63, only the vehicle side correlation information may be stored, or the control content determination unit 73 may preferentially adopt the center side correlation information among the correlation information 63.

  INDUSTRIAL APPLICABILITY The present invention can be used for a vehicle control device that controls an in-vehicle device in accordance with at least the music tone reproduced by car audio. The appearance, weight, size, running performance, etc. of the vehicle to be mounted are not limited.

1 is a diagram illustrating an example of the overall configuration of a vehicle control device 10 and an information communication center 100 according to an embodiment of the present invention. It is a figure which shows an example of the learning result memorize | stored as correlation information 63.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle control apparatus 20 Vehicle behavior detection sensor 30 Communication apparatus 40 Braking / driving force output apparatus 50 Navigation apparatus 51 GPS receiver 52 Input / display apparatus 53 Speaker 60 Storage part 61 Map data 62 Music information 63 Correlation information 70 For navigation apparatus Electronic control unit 71 Attribute acquisition unit 72 Correlation learning unit 73 Control content determination unit 80 Car audio 100 Information communication center 110 Center side communication device 120 Information processing computer 130 Database

Claims (12)

Attribute acquisition means for acquiring attributes based on the tone of the music played by the car audio;
Control means for controlling the in-vehicle device based on the attribute acquired by the attribute acquisition means;
A vehicle control apparatus comprising: The vehicle control means according to claim 1,
A storage means for storing a song and the attribute in association with each other;
The said attribute acquisition means is a vehicle control apparatus which is a means which acquires the said attribute by searching this memory | storage means. The vehicle control means according to claim 1 or 2,
A communication means for performing road-to-vehicle communication;
The said attribute acquisition means is a vehicle control apparatus which is a means to acquire the said attribute by the road-to-vehicle communication which this communication means performs. The vehicle control means according to any one of claims 1 to 3,
The attribute is an attribute that is pre-classified based on the influence of the music tone on the vehicle behavior.
Vehicle control device. The vehicle control means according to any one of claims 1 to 4,
Vehicle behavior detection means for detecting vehicle behavior;
Learning means for learning a correlation between the attribute and the vehicle behavior detected by the vehicle behavior detection means,
The control means is a vehicle control device that is a means for performing control associated with a vehicle behavior having a high correlation with the attribute acquired by the attribute acquisition means based on the correlation learned by the learning means. . The vehicle control device according to any one of claims 1 to 5,
A communication means for performing road-to-vehicle communication;
The control means performs control associated with the vehicle behavior having a high correlation with the attribute acquired by the attribute acquisition means based on the correlation between the attribute acquired using the communication means and the vehicle behavior. A vehicle control device, which is means for performing. The vehicle control device according to claim 6 according to claim 5,
The control means performs control based on the correlation learned by the learning means when the learning number of the learning means is a predetermined number or more, and when the learning number is less than the predetermined number, the communication means A vehicle control device, which is means for performing control based on the correlation acquired by road-to-vehicle communication performed by the vehicle. The vehicle control device according to any one of claims 1 to 7,
The control means is means for performing control associated with the specific music when the music played by the car audio corresponds to any of a plurality of specific music prepared in advance.
Vehicle control device. The vehicle control device according to any one of claims 1 to 8,
The control device is a vehicle control device that is at least one of vehicle drive control, a notification operation to a driver, and a change in a display mode of an in-vehicle display terminal. The vehicle control device according to any one of claims 1 to 9,
The control means is means for changing the color and / or icon form related to the display of the in-vehicle display terminal.
Vehicle control device.   The vehicle control device according to claim 1, wherein the vehicle behavior is configured by replacing a vehicle behavior with a driving operation. The vehicle control device according to claim 6 according to claim 5,
An information communication center comprising an information communication center provided with a center communication means for communicating with each vehicle control device,
Each vehicle control device transmits the correlation learned by the learning means to the information communication center,
The information communication center includes a database created based on the correlation received from each vehicle control device, and transmits the correlation between the attribute and the vehicle behavior stored in the database to each vehicle. An information communication system.

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