JP2013116668A - Vehicle device, vehicle communication system, and mobile terminal - Google Patents

Abstract

A vehicle device, a vehicle communication system, and a mobile terminal that determine whether or not the operation is performed by a driver without causing a significant increase in cost and appropriately suppress the operation of the mobile terminal are provided.
An audio output unit including a reference audio generation unit that generates a first reference audio having preset characteristics and a speaker that is provided in the vicinity of a driver's seat of the vehicle and outputs the first reference audio. A communication unit 11 that communicates audio information related to voice and operation information related to operation input between the mobile terminal 3 and the mobile terminal 3, and a speaker that receives audio information received from the mobile terminal 3 via the communication unit 11. The voice determination unit 21 that determines whether or not the first reference voice output from the 28D is included, and when the voice determination unit 21 determines that the first reference voice is included in the voice information, the operation An operation suppression unit 22 that suppresses the operation of the functional unit based on the information.
[Selection] Figure 1

Description

  The present invention relates to a vehicle device, a vehicle communication system, and a mobile terminal that are connected to a mobile terminal capable of performing a voice call and have a functional unit that can be operated by an operation input to the mobile terminal.

  2. Description of the Related Art In recent years, a vehicular apparatus that is connected to a mobile terminal and can be remotely operated by performing an operation input on the mobile terminal is known. In this case, since it becomes possible to operate even from a rear seat that does not reach the vehicle device, convenience for the user is improved. By the way, although it is not preferable from the viewpoint of safety that the driver operates the mobile terminal during driving, it should be suppressed. However, if the operation by the passenger is suppressed, the convenience is unnecessarily lowered. Therefore, when restricting the operation on the mobile terminal, it is necessary to determine whether or not the mobile terminal has been operated by the driver. For example, Patent Literature 1 discloses a mobile terminal in a vehicle interior using two antennas. A method for specifying a position and selectively restricting an operation input by a driver is disclosed.

  However, the configuration as described in Patent Document 1 has a problem that radio waves reach not only the vicinity of the driver's seat but also the passenger seat. In addition, there is a problem that standing waves are generated due to irregular reflection of radio waves in the passenger compartment, and communication is temporarily interrupted by switching antennas. Further, since two antennas are required, there is a problem that the cost is increased.

JP 2006-279755 A

  Therefore, the present invention provides a vehicle device, a vehicle communication system, and a mobile terminal that determine whether or not the operation is performed by a driver without causing a significant increase in cost and appropriately suppress the operation of the mobile terminal. The purpose is to do.

  In the first aspect of the present invention, the first reference sound having the characteristics preset by the reference sound generation unit is generated, and the first speaker is provided from the first speaker provided in the vicinity of the driver's seat. It is determined whether the first reference sound output from the first speaker is included in the sound information received from the portable terminal by outputting the reference sound, and the first reference sound is included in the sound information. If it determines, the action | operation of the function part based on the operation information which shows the operation input from a portable terminal will be suppressed.

  When the first reference voice is included in the voice information received from the portable terminal, that is, when the first reference voice output from the first speaker provided in the vicinity of the driver's seat is input to the portable terminal. The portable terminal is assumed to be located in the vicinity of the driver's seat. Therefore, when the first reference voice is included, the operation of the functional unit based on the operation information indicating that the operation input for operating the vehicle device is performed from the mobile terminal is suppressed. Thereby, operation of the portable terminal from the driver's seat side can be restricted, and safety during traveling can be ensured. On the other hand, when the first reference voice is not included, the function unit is operated based on the operation information transmitted from the portable terminal, so that the operation input from the passenger seat that is not the driver seat may be limited. Therefore, it is possible to reduce the possibility that the convenience is excessively lowered.

  Therefore, it can be appropriately determined whether or not the operation is performed by the driver, and the operation of the mobile terminal can be appropriately suppressed. In this case, the mobile terminal can use a general mobile phone, for example, and the speaker can be a pre-installed vehicle, so there is no burden on the user and the cost is significantly increased. Will not be invited.

  In the vehicle device according to the second aspect, the low-frequency sound in the audible range and near the lower limit of the audible range is generated as the first reference sound. Since it is assumed that the mobile terminal performs a general voice call, it is assumed that it is impossible to input other than audio in the audible range. In addition, so-called road noise generated by the contact between the tire and the ground, for example, while the vehicle is running is often at a relatively low frequency. Therefore, the first reference sound can be input to the mobile terminal by making the first reference sound an audible range, and the first reference sound can be input while driving by setting the low frequency near the lower limit of the audible range. The sound is similar to noise, and even if the first reference sound is output, the driver can be prevented from being concerned.

  In the invention of the vehicle device according to the third aspect, when the vehicle information that is the information related to the traveling state of the vehicle is acquired and the vehicle information is determined to be the traveling state based on the acquired vehicle information, the operation of the functional unit is suppressed. Here, the vehicle information is, for example, the speed of the vehicle. The traveling state includes, for example, not only the case where the speed of the vehicle exceeds a predetermined value, that is, the case where the vehicle is moving, but also the case where the intention to drive is shown after the parking state is released. Thus, if it is set as the structure which suppresses the action | operation of a function part if it is a driving | running state based on vehicle information, since operation during a stop will not be restrict | limited, a possibility that convenience may fall can be reduced.

  In the vehicle device according to the fourth aspect, the characteristic of the first reference voice is changed according to the vehicle information. For example, the road noise described above is assumed to increase as the vehicle speed increases. For this reason, if the characteristics of the first reference sound are generated at a predetermined volume, for example, when the vehicle is traveling at high speed, it may be drowned out by road noise. Therefore, by changing the characteristics of the first reference voice according to the acquired vehicle information, the first reference voice can be made into an appropriate characteristic that can be input by the mobile terminal.

  In the vehicle device invention according to the fifth aspect, the characteristic of the first reference sound is changed according to the adjustment state of the vehicle compartment environment by the vehicle compartment environment adjustment unit. Here, the cabin environment is, for example, the usage status of an air conditioner. When the air volume of the air conditioner is large, it is assumed that large noise is generated from the air conditioner outlet. Therefore, by changing the characteristics of the first reference sound in accordance with the adjustment state of the passenger compartment environment, the first reference sound can be set to an appropriate characteristic that can be input by the mobile terminal.

  In the vehicle device invention according to claim 6, a second reference sound having characteristics different from the first reference sound is further generated, and the second speaker is provided at a position farther from the driver's seat than the first speaker. To output the second reference sound. Then, when the first reference sound is larger than the second reference sound in the sound input to the mobile terminal, the operation of the function unit is suppressed. For example, although sound is attenuated more than radio waves, it is difficult to output the sound in a limited manner in the vicinity of the driver's seat. Therefore, by comparing the first reference sound output from the vicinity of the driver seat and the second reference sound output from a position away from the driver seat, it is possible to determine which is closer to the mobile terminal, The operation of the functional unit can be appropriately suppressed.

  In the vehicle device invention according to claim 7, a plurality of second speakers are provided in the vehicle interior, and the second reference sound is generated with sound having different characteristics in each of the plurality of second speakers, from the mobile terminal. It is determined which of the received first reference sound and the plurality of second reference sounds is loud, and the position corresponding to the speaker to which the loudest sound is input is specified as the position of the mobile terminal. As a result, in addition to whether or not the mobile terminal is in the vicinity of the driver's seat, it is possible to grasp where the mobile terminal is in the passenger compartment, and to specify the antenna pointing direction for connection with the mobile terminal. It can improve sensitivity and reduce radio wave interference.

  In the invention of the vehicle communication system according to claim 8, the mobile terminal can execute an application program that cooperates with the vehicle device, acquires information about the first reference voice, and uses the terminal-side operation input unit to perform the vehicle device. If the first reference voice is input when an operation input is accepted, activation of the application program is restricted. Thereby, when the first reference voice is input, that is, when the mobile terminal is located in the vicinity of the driver's seat, the cooperation with the vehicle device is limited. Therefore, it can suppress that a portable terminal is operated accidentally by a driver | operator.

  In the invention of the vehicle communication system according to claim 9, if the mobile terminal receives the first reference voice when the operation input to the vehicle device is received by the terminal side operation input unit, Since the operation information is not transmitted to the vehicle device, the cooperation with the vehicle device is restricted when the mobile terminal is located in the vicinity of the driver's seat. Therefore, it can suppress that a portable terminal is operated accidentally by a driver | operator.

  In the invention of the vehicle communication system according to claim 10, when the mobile terminal is input with the first reference voice when an operation input to the vehicle device is received by the terminal-side operation input unit, Additional information indicating that the first reference voice is included is transmitted to the vehicle apparatus together with the voice information and the operation information. And the apparatus for vehicles will suppress the action | operation of the function part based on the operation information received with the said additional information, if additional information is received from a portable terminal. Thereby, when the mobile terminal is located in the vicinity of the driver's seat, the function of the functional unit is suppressed on the vehicle device side, so that the driver can be prevented from operating the mobile terminal by mistake.

  In the invention of the portable terminal according to claim 11, the reference voice is included when the preset reference voice is connected to the voice generator capable of outputting the reference voice to the vicinity of the driver's seat and the operation input is accepted. 11. The vehicle communication system according to any one of claims 8 to 10, since the communication with the vehicle device or the reception of the operation input by the operation input unit is suppressed when it is determined that The same effect can be obtained.

The figure which shows schematically the structure of the communication system for vehicles in 1st Embodiment, and the apparatus for vehicles. A diagram schematically showing the vehicle The figure which shows the structure of the portable terminal schematically The figure which shows the flow of the 1st action suppression process by the apparatus for vehicles. The figure which shows the flow of the 1st reference | standard audio | voice setting process by the apparatus for vehicles. The figure which shows typically the vehicle interior in which the apparatus for vehicles is provided. The figure which shows the flow of the 2nd action suppression process by the apparatus for vehicles in 2nd Embodiment. The figure which shows typically the vehicle interior in which the apparatus for vehicles is provided. The figure which shows schematically the structure of the portable terminal in 3rd Embodiment. The figure which shows the flow of application starting restriction processing with portable terminal The figure which shows the flow of the command transmission suppression processing by a portable terminal The figure which shows the flow of the additional information transmission process by a portable terminal

Hereinafter, a plurality of embodiments of a device for vehicles, a communication system for vehicles, and a portable terminal by the present invention are described with reference to drawings. Note that components that are substantially common to the embodiments are described with the same reference numerals.
(First embodiment)
Hereinafter, a vehicle communication system and a vehicle apparatus according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 6.

  As shown in FIG. 1, the vehicle communication system 1 includes an in-vehicle device 2 and a mobile terminal 3 as vehicle devices. The vehicle communication system 1 is mounted on a vehicle 40 (see FIG. 2), and the in-vehicle device 2 is provided in a passenger compartment 41 (see FIG. 2). The in-vehicle device 2 is communicably connected to the mobile terminal 3 brought into the vehicle 40. Note that the in-vehicle device 2 is not limited to the one that is fixedly provided in the vehicle, but may be one that can be moved or transported in the passenger compartment 41.

  The in-vehicle device 2 includes a control unit 10, a communication unit 11, a storage unit 12, a display unit 13, an operation input unit 14, a position information acquisition unit 15, a voice input unit 16, a voice output unit 17, a vehicle cabin environment adjustment unit 18, and a vehicle. An information acquisition unit 19 is provided. The control unit 10 is configured by a microcomputer having a CPU, RAM, ROM, input / output interface, and the like (not shown). The control unit 10 controls the entire in-vehicle device 2 such as a communication operation and a display operation according to a computer program stored in the ROM or the storage unit 12. Specifically, the control unit 10 controls the in-vehicle device 2 by executing a communication program, an application program that realizes a navigation function that will be described later, or an application program that controls voice output.

  Moreover, the control part 10 implement | achieves the reference | standard audio | voice production | generation part 20, the audio | voice determination part 21, and the action suppression part 22 by software with a computer program. Although the details will be described later, the reference voice generation unit 20 generates a first reference voice having a predetermined characteristic, which is a voice to be output to the vicinity of the driver's seat 42 (see FIG. 2). . In the case of this embodiment, the reference | standard audio | voice production | generation part 20 produces | generates the low frequency audio | voice near the lower limit of a human audible range and an audible range as 1st reference | standard sound. More specifically, the reference sound generation unit 20 generates sound having regular characteristics, such as repeating ON / OFF at intervals of 1 second at a frequency of about 300 Hz as an example. That is, the reference voice generation unit 20 has a frequency band that is similar to road noise during traveling, and does not bother the driver even if it is output, in other words, does not distract the driver's attention. Generate voice with. Moreover, the reference | standard audio | voice production | generation part 20 changes the characteristic of a 1st reference | standard audio | voice based on the vehicle information acquired in the vehicle information acquisition part 19, so that it may mention later.

  The sound determination unit 21 determines whether or not the first reference sound is included based on the sound information acquired from the mobile terminal 3. Specifically, the voice determination unit 21 acquires the user's voice input to the terminal-side voice input unit 54 (see FIG. 3) of the mobile terminal 3 via the communication unit 11, although details will be described later. It is determined whether or not the first reference sound exceeds a predetermined determination level for the acquired sound. Here, the determination level is a threshold value for determining whether or not the first reference sound is included, and is, for example, a volume. The sound determination unit 21 determines that the first reference sound is included if the volume of the first reference sound included in the acquired sound exceeds the determination level. Note that, similarly to the first reference voice, the determination level may be changed based on the vehicle information.

  Although details will be described later, the operation suppressing unit 22 suppresses the operation of the functional unit that can be operated by an operation input to the mobile terminal 3. In this case, the function unit executes, for example, a navigation function, a TV viewing function, an air conditioner setting, a music data playback function acquired via the mobile terminal 3, and the like, which will be described later. And various types of vehicle equipment that can be operated from the in-vehicle device 2 are equivalent. The operation input is a user's operation on each function unit when the mobile terminal 3 is used as a so-called remote controller.

  The communication unit 11 connects the in-vehicle device 2 and the mobile terminal 3 so that they can communicate with each other. The communication unit 11 of the present embodiment employs Bluetooth (registered trademark), which is a short-range wireless communication method. For this reason, the in-vehicle device 2 and the portable terminal 3 are connected in a cooperative manner by the Bluetooth function. Note that the communication unit 11 may be a wireless LAN or the like. The in-vehicle device 2 communicates voice information and operation information via the communication unit 11. Here, the voice information is information related to the voice input to the terminal-side voice input unit 54 of the mobile terminal 3, and the operation information is related to an operation performed on the terminal-side operation input unit 53 of the mobile terminal 3. Information. As described above, the voice information includes the voice of the user input to the mobile terminal 3. The operation information includes information related to an operation performed on the functional unit of the in-vehicle device 2, for example, information such as an operation in which the user switches the navigation screen or the television screen. The in-vehicle device 2 also communicates information such as music data and files stored on the mobile terminal 3 side in addition to the voice information and the operation information.

The storage unit 12 includes a storage medium that can read and write various data. The storage unit 12 stores various data such as a computer program for controlling the in-vehicle device 2. The storage medium is a well-known HDD or SD card, for example.
The display unit 13 includes a display circuit and a display (not shown). The display circuit generates a control signal for controlling display on the display based on the display command signal from the control unit 10. The display is composed of, for example, a liquid crystal display or an organic EL display, and displays an operation screen of the in-vehicle device 2, various messages, a navigation screen described later, and the like.

  The operation input unit 14 includes an input circuit (not shown) and a plurality of switches. The operation input unit 14 receives a user's operation input for the in-vehicle device 2. The input circuit outputs the operation of the switches to the control unit 10 as an electrical signal. As the switches, for example, a plurality of so-called touch panel touch switches provided corresponding to the screen of the display unit 13, push button switches arranged around the screen, and the like are provided.

  The position information acquisition unit 15 includes a GPS unit 23, a map DB 24 (map database), a VICS (registered trademark) unit 25, and the like. The position information acquisition unit 15 also has sensors such as a geomagnetic sensor and a gyroscope (not shown). The position information acquisition unit 15 acquires the position information of the vehicle 40 by complementing signals input from these sensors. In this case, the position information acquisition unit 15 does not have to include all these elements as long as the position information of the vehicle 40 can be acquired with the required detection accuracy. The position information acquisition unit 15 outputs the acquired position information of the vehicle 40 to the control unit 10. The control unit 10 performs so-called navigation processing based on the position information of the vehicle 40 acquired by the position information acquisition unit 15. That is, the in-vehicle device 2 of the present embodiment employs a navigation device and has a well-known navigation function such as route guidance and map mapping.

  The voice input unit 16 includes a microphone 26 and a voice input circuit 27. The microphone 26 inputs sound in the passenger compartment 41 (see FIG. 2). In this case, for example, an utterance voice during a hands-free call, a voice command for the in-vehicle device 2, or the like is input to the microphone 26. The voice input circuit 27 includes a filter circuit, an AD conversion circuit, and the like (not shown), and performs signal processing on the input voice.

  In the present embodiment, the audio output unit 17 includes four speakers 28A, 28B, 28C, 28D, an amplifier 29, and an audio output circuit 30. In the following description, when the description is common to the speakers 28A to 28D, the symbols A to D are not given, and the speaker 28 is simply referred to. As shown in FIG. 2, the speaker 28 </ b> A includes a speaker 28 </ b> A in the vicinity of the driver seat 42, a speaker 28 </ b> B in the vicinity of the passenger seat 43, and a first rear portion of the rear seat in the passenger compartment 41 of the vehicle 40. A speaker 28C is provided in the vicinity of the seat 44, and a speaker 28D is provided in the vicinity of the second rear seat 45 of the rear seat. The speaker 28A provided in the vicinity of the driver's seat 42 constitutes the first speaker described in the claims. These speakers 28 are provided in the vehicle 40 in advance as a so-called car audio system.

  The amplifier 29 amplifies the sound output to each speaker 28. The audio output circuit 30 performs an analog conversion process of audio output to the speaker 28. The audio output circuit 30 is connected to a tuner unit 31 and a DVD deck 32. The tuner unit 31 includes, for example, a radio tuner and a television tuner. The audio output circuit 30 outputs the audio from the tuner unit 31 and the DVD deck 32 to each speaker 28 via the amplifier 29. The video output from the tuner unit 31 and the DVD deck 32 is displayed on the display unit 13. That is, the in-vehicle device 2 has a viewing function such as a television or a DVD. Note that the DVD deck 32 may be capable of reproducing not only a DVD but also a CD, a Blu-Ray (registered trademark) disk, and the like.

  The audio output circuit 30 adjusts the audio output to each speaker 28. That is, the audio output circuit 30 can individually allocate and output audio from the tuner unit 31 and the DVD deck 32 to each speaker 28, and for example, specific audio (for example, first reference audio) only to the speaker 28A. Or an output in which individual sounds (for example, the first reference sound and the second reference sound) are superimposed on each speaker 28 is possible. That is, the in-vehicle device 2 can individually adjust the sound output for each speaker 28 provided in the vehicle interior 41 and at which position in the vehicle interior 41 each speaker 28 is disposed. I know.

  The vehicle cabin environment adjustment unit 18 adjusts the environment inside the vehicle cabin 41 of the vehicle 40. Specifically, the passenger compartment environment adjustment unit 18 is connected to, for example, the air conditioner ECU 33 and adjusts the temperature and air volume of the air conditioner according to the operation from the operation input unit 14. That is, the vehicle-mounted device 2 is configured to be able to grasp the air volume of the air conditioner.

  The vehicle information acquisition unit 19 receives a vehicle speed signal input from a vehicle speed sensor (not shown), a parking signal indicating the state of a parking switch (not shown), a shift position signal indicating the position of a shift lever (not shown), and the like. The vehicle information acquisition unit 19 acquires the traveling state of the vehicle 40 based on the input signal. In addition, the vehicle information acquisition unit 19 receives airflow (which is hereinafter referred to as convenience) from the air conditioner air volume adjusted by the cabin environment adjustment unit 18 and the tuner unit 31 or DVD deck 32 output from the audio output unit 17. Whether or not audio is output, and if audio is output, the volume of the audio is also acquired as vehicle information. That is, the vehicle information acquisition unit 19 is not only information relating to the running state of the vehicle 40 but also information relating to the environment of the vehicle compartment 41, particularly information relating to sound in the vehicle compartment 41, as vehicle information. Information for estimating what kind of sound is generated from other devices connected to the PC is also acquired.

  As shown in FIG. 3, the mobile terminal 3 connected to the in-vehicle device 2 includes a terminal-side control unit 50, a terminal-side communication unit 51, a terminal-side display unit 52, a terminal-side operation input unit 53, and a terminal-side voice input unit 54. Etc. The terminal-side control unit 50 is configured by a microcomputer 26 having a CPU, RAM, ROM, input / output interface and the like (not shown), and controls the entire portable terminal 3. The terminal-side communication unit 51 has a Bluetooth (registered trademark) communication function for connecting to the in-vehicle device 2 and a public line connection function for connecting to the public line network 55.

  The terminal-side display unit 52 is configured by, for example, a liquid crystal display or an organic EL display, and the operation screen of the mobile terminal 3, various information stored in the mobile terminal 3, outgoing / incoming messages, etc. Display the screen. The terminal side operation input unit 53 includes various switches such as numeric keys, a touch switch provided on the terminal side display unit 52, and the like. The terminal side operation input unit 53 receives a user operation input to the mobile terminal 3. Of the operation inputs input to the terminal-side operation input unit 53, the operation input to the in-vehicle device 2, that is, the operation input made for the user to operate the in-vehicle device 2 is transmitted to the in-vehicle device 2 as operation information. The

The terminal-side voice input unit 54 has a microphone (not shown) that inputs voice spoken by the user. This microphone is configured to be able to input a voice in a human audible voice band for a voice call. The voice input to the terminal side voice input unit 54 is transmitted to the in-vehicle device 2 as voice information.
As described above, the vehicular communication system 1 includes the in-vehicle device 2 and a general mobile terminal connected to the in-vehicle device 2 by the Bluetooth function. That is, the mobile terminal of the present embodiment assumes a so-called mobile phone. In addition, when connecting with the vehicle equipment 2 by wireless LAN, the portable side communication part 51 should just be provided with the circuit for wireless LAN.

Next, the operation of the vehicle communication system 1 and the vehicle-mounted device 2 configured as described above will be described.
The vehicle-mounted device 2 of the vehicle communication system 1 uses the function that operates in cooperation with the mobile terminal 3 as described above, more specifically, using the mobile terminal 3 as a remote controller without operating the vehicle-mounted device 2 main body. It has a function of operating the in-vehicle device 2. Now, although the vehicle equipment 2 is operated in the state where the user got on the vehicle 40, operation during driving | running | working is unpreferable on safety. On the other hand, if the operation of the portable terminal 3 by a passenger other than the driver is suppressed, the convenience is excessively lowered.
Therefore, in this embodiment, whether the operation is performed by the driver or the passenger is determined as follows, and the operation of the functional unit is suppressed. Each process described below is a process performed by the control unit 10, the vehicle information acquisition unit 19, and the like, but for the sake of simplification of description, the on-vehicle device 2 will be mainly described.

  When the ACC (power supply) is turned on in the first operation suppression process shown in FIG. 4 (S101), the in-vehicle device 2 executes the first reference voice setting process (S102). In the first reference voice setting process, a reference voice signal is first generated as shown in FIG. 5 (S201). Here, the reference audio signal is an audio signal having characteristics of initial values set in advance for generating the first reference audio. This initial value is set according to, for example, the type of the vehicle 40 and the arrangement of the speaker 28 in the passenger compartment 41, and as described above, the audio signal of about 300 Hz, more specifically, from the first speaker. It is preset as data for generating a voice that can be output and can be input to the terminal-side voice input unit 54 of the mobile terminal 3 as a voice. Further, as shown in FIG. 6, the reference voice is a characteristic (for example, sound volume) such that the first range P1 in the vicinity of the driver's seat 42 becomes an audible range from the speaker 28A provided in the vicinity of the driver's seat 42. Audio signal. In the first reference sound setting process shown in FIG. 5, the process of generating the reference sound signal and changing the characteristics from step S201 to S208, which will be described later, only generates sound data, and from the speaker 28A. Has not yet been output.

  Then, the vehicle equipment 2 acquires vehicle information (S202). In this case, the in-vehicle device 2 acquires vehicle information by the vehicle information acquisition unit 19. As described above, the vehicle information includes the speed of the vehicle 40, the air volume of the air conditioner, the audio output, and the like. Therefore, the in-vehicle device 2 first specifies the speed of the vehicle 40 (hereinafter referred to as vehicle speed) (S203), and changes the characteristics of the reference audio signal according to the specified vehicle speed (S204). Road noise is expected to increase as vehicle speed increases. Therefore, when the in-vehicle device 2 determines that the specified vehicle speed hinders the first reference sound, the on-vehicle device 2 changes the characteristics of the reference sound signal so that the sound volume is not erased by road noise. That is, the in-vehicle device 2 changes the characteristics of the reference sound signal so that the volume when output as the first reference sound increases, for example, as the vehicle speed increases. In this case, the correlation between the characteristics of the reference sound to be changed, the vehicle speed, the air volume of the air conditioner described later, and the audio output may be stored in advance in the storage unit 12 or the like. Although it is assumed that the vehicle 40 has not yet traveled immediately after the ACC is turned on, the vehicle speed is determined in step S204 in order to make it possible to change the characteristics of the first reference audio signal during travel as will be described later. The characteristics are changed according to the situation.

  Subsequently, when the in-vehicle device 2 determines that the air conditioner is being used (S205: YES), the vehicle-mounted device 2 further changes the characteristics of the reference audio signal according to the air volume of the air conditioner (S206). For example, when the air volume of the air conditioner is large, a large wind noise is expected to be generated in the passenger compartment 41 from the air conditioner outlet. Therefore, the in-vehicle device 2 changes the characteristic of the reference audio signal so that the volume when the air volume of the air conditioner increases, for example, the volume when output as the first reference audio increases. When the air conditioner is not used (S205: NO), the process proceeds to step S207 without processing step S206.

  Further, if the in-vehicle device 2 determines that the audio is being output (S207: YES), it changes the characteristics of the reference audio signal according to the audio volume (S208). For example, the in-vehicle device 2 changes the characteristics of the reference audio signal such that the volume of the audio output as the first reference audio increases as the audio volume increases. If the audio is not being output (S207: NO), the process proceeds to step S209 without performing step S208.

  When the reference voice is generated and the characteristics are changed based on the vehicle information as described above, the in-vehicle device 2 determines whether or not the vehicle speed exceeds a predetermined value (S209). Here, the predetermined value is a value for setting the first reference voice, and is an arbitrary vehicle speed set in advance to suppress the operation of the function unit. In the present embodiment, the predetermined value is set to about several km / h. If the vehicle speed exceeds the predetermined value (S209: YES), the in-vehicle device 2 sets the generated reference sound as the first reference sound (S210), and then returns. Thereby, when the vehicle speed exceeds a predetermined value, that is, when the vehicle 40 is in a traveling state, as shown in FIG. 6, with respect to the first range P1 that is the space near the driver's seat 42, The first reference sound is output from the speaker 28A.

On the other hand, as shown in FIG. 4, if the vehicle-mounted device 2 determines that the vehicle speed does not exceed the predetermined value (S209: NO), the vehicle-mounted device 2 returns without setting the first reference voice. That is, the vehicular device determines that there is no need to output the first reference sound that is a reference for suppressing the operation of the functional unit, and does not set the first reference sound.
When the vehicle speed exceeds a predetermined value by executing the first reference voice setting process as described above, as shown in FIG. 6, the terminal-side voice input unit 54 of the mobile terminal 3 existing in the first range P1. The first reference voice is input to the first. On the other hand, the first reference voice is not input to the portable terminal 3 located on the passenger seat 43 side outside the first range P1, for example. Note that “the first reference voice is not input” includes the case where the first reference voice is equal to or lower than the determination level as described later.

  When returning from the first reference voice setting process, the in-vehicle device 2 is connected to the portable terminal 3 by the Bluetooth function in the first operation suppression process shown in FIG. 4 (S103). Step S102 and step S103 may be switched in order. Subsequently, the in-vehicle device 2 determines whether or not a command has been received from the mobile terminal 3, that is, whether or not the operation information acquired by the communication unit 11 includes information indicating an operation input to the in-vehicle device 2. (S104) If a command has not been received (S104: NO), the process of step S104 is repeated to enter a standby loop for waiting for reception of the command. Note that the first reference voice setting process is also performed in this standby loop. That is, the first reference sound setting process is executed not only in step S102 but also whenever the vehicle 40 is traveling. Accordingly, the characteristics of the first reference sound are appropriately changed according to changes in the vehicle speed and the like.

  On the other hand, when the vehicle-mounted device 2 receives a command from the mobile terminal 3 (S104: YES), the in-vehicle device 2 is included in the received voice (inputted on the mobile terminal 3 side and received together with the operation information). It is determined whether or not the first reference sound is included in (speech), more precisely, whether or not the first reference sound exceeding the determination level is included in the received sound (S105). Here, when the first reference sound exceeding the determination level is included in the received sound, it is considered that the mobile terminal 3 to which the first reference sound is input is located in the vicinity of the driver seat 42. Therefore, when the first reference voice is included in the received voice (S105: YES), the in-vehicle device 2 determines that the mobile terminal 3 that transmitted the command is located on the driver seat 42 side, By not performing the process for the received command, the operation of the functional unit is suppressed (S106). Thereby, the operation input by the portable terminal 3 from the driver's seat 42 side is restricted. In step S106, not only the process corresponding to the command is not executed, but also a process of canceling the command received this time is performed in preparation for the next reception.

Thereafter, the in-vehicle device 2 reports a running message indicating that the operation of the functional unit has been suppressed (S107). Specifically, the in-vehicle device 2 displays a message such as “Operation of the mobile terminal 3 while traveling is dangerous” on the display unit 13 or outputs it from the speaker 28. Thereby, it can alert | report that the action | operation of a function part is suppressed with respect to a driver | operator.
On the other hand, when the first reference voice is not included in the received voice (S105: NO), the in-vehicle device 2 executes a process corresponding to the received command (S108). Thereby, the operation from the side other than the driver's seat 42 side, for example, the operation of the portable terminal 3 by the passenger is not limited, and the possibility that the convenience is lowered is reduced. Note that, whether or not the process corresponding to the command is executed, the process proceeds to step S104 in order to wait for reception of the next command.

According to this embodiment described above, the following effects can be obtained.
In the vehicle communication system 1 and the vehicle-mounted device 2 according to the first embodiment, the first reference sound output toward the vicinity of the driver's seat 42 has a predetermined level in the sound information received from the connected mobile terminal 3. When it is included exceeding, the action | operation of the function part based on the operation input input into the said portable terminal 3 is suppressed. On the other hand, when the first reference voice is not included in the voice information received from the mobile terminal 3, the operation of the function unit is not suppressed. In other words, the vehicle communication system 1 and the vehicle-mounted device 2 specify the position of the connected mobile terminal 3, and if it is determined that the operation is performed by the driver according to the position of the mobile terminal 3, Suppress operation. Therefore, it is possible to restrict the driver from operating the mobile terminal 3 by mistake from the driver seat 42 side, and it is possible to improve safety during driving. In addition, for example, an operation input by a passenger on the passenger seat 43 side is accepted, so that it is possible to appropriately reduce the operation of the mobile terminal 3 such as reducing the possibility of excessively impeding convenience.

Since a low-frequency sound of about 300 Hz is generated as the first reference sound, the first reference sound during traveling does not distract the driver due to road noise. Therefore, safety can be improved.
By setting the first reference sound when the vehicle speed exceeds a predetermined value, the operation of the functional unit is suppressed in the traveling state, while the operation of the functional unit is not suppressed unless the vehicle is in the traveling state. Thereby, if it is not a driving | running | working state, it will become possible to operate the portable terminal 3 as a remote control, and the possibility that the convenience will fall too much can be reduced.

Since the reference sound generation unit 20 changes the characteristics of the first reference sound according to the vehicle information acquired by the vehicle information acquisition unit 19, for example, even if the vehicle speed increases and road noise increases, The volume of one reference voice is also increased. Accordingly, the first reference sound itself is not erased by road noise, and the operation of the functional unit, that is, the operation of the mobile terminal 3 can be appropriately suppressed even during traveling.
In addition, the reference sound generation unit 20 changes the characteristics of the first reference sound in accordance with the adjustment state of the environment in the passenger compartment 41 by the passenger compartment environment adjustment unit 18, so that, for example, the first sound is generated when the air conditioner is used. The reference voice is not erased, and the operation of the functional unit, that is, the operation of the mobile terminal 3 can be appropriately suppressed.

  Since sound waves are attenuated more than radio waves, it is easier to make the propagation range near the driver's seat 42 than radio waves. Therefore, the first range P1 shown in FIG. 6, that is, the range in which the first reference voice is propagated beyond a predetermined level can be set only in the vicinity of the driver's seat 42. The range that restricts is set appropriately. Therefore, the position of the portable terminal 3 can be specified more accurately, and the possibility that the convenience is excessively lowered due to unnecessary suppression can be reduced.

  A first reference sound is output using a speaker 28 provided in advance as a car audio system, and it is determined whether or not the first reference sound is input to the terminal-side sound input unit 54 of the mobile terminal 3. As a result, the cost is not increased significantly.

When the operation of the function unit is suppressed, for example, a driving message such as “Operation of the mobile terminal 3 while driving is dangerous” is notified, so the driver recognizes that the operation of the function unit is suppressed. The operation of the portable terminal 3 is refrained. In other words, if the operation is simply suppressed, the in-vehicle device 2 or the portable terminal 3 may be distracted from the driving by assuming that the in-vehicle device 2 or the portable terminal 3 has failed. Since the driver is informed that the vehicle is operating normally and cannot be operated while traveling, safety can be improved.
Since processing such as voice determination is performed on the in-vehicle device 2 side, the general mobile terminal 3 can be used and the battery consumption of the mobile terminal 3 can be reduced.

(Second Embodiment)
Hereinafter, a vehicle communication system and a vehicle apparatus according to a second embodiment of the present invention will be described with reference to FIGS. 7 and 8. In the second embodiment, the second reference sound is output in addition to the first reference sound, and the first reference sound and the second reference sound are used to determine whether to suppress the operation of the function unit. Different from one embodiment. Note that the configurations of the vehicle communication system and the vehicle device are the same as those in the first embodiment, and thus detailed description thereof is omitted.

  The vehicle communication system 1 and the in-vehicle device 2 of the second embodiment are connected to the mobile terminal 3 as in the first embodiment, and execute the second operation suppression process shown in FIG. When the ACC is turned on (S301), the in-vehicle device 2 executes a first reference voice setting process (S302). This first reference voice setting process is a process common to step S102 of the first embodiment, and generates and sets the first reference voice. Then, the vehicle equipment 2 performs a 2nd reference | standard audio | voice setting process (S303). The second reference sound setting process performs substantially the same process as the first reference sound setting process, but the characteristics of the reference sound are different. That is, in the second reference sound setting process, a second reference sound that is a sound having a characteristic different from that of the first reference sound is generated and set. This second reference voice is also appropriately changed according to the vehicle information.

As shown in FIG. 8, the second reference sound includes a speaker 28 </ b> B disposed in the vicinity of the passenger seat 43 in the vehicle 40, a speaker 28 </ b> C provided in the vicinity of the first rear seat 44 among the rear seats, and The sound is output from the speaker 28 </ b> D disposed in the vicinity of the second rear seat 45.
That is, the second reference sound is provided at a position farther from the driver's seat 42 than the speaker 28A corresponding to the first speaker. These speakers 28B-D constitute the second speaker described in the claims.
In this case, the second reference sound is output from each speaker 28 toward the first range P1, the second range P2, the third range P3, and the fourth range P4. Therefore, the first reference sound is input to the mobile terminal 3 located in the first range P1, and the second reference sound is input to the mobile terminal 3 located in the second range P2, the third range P3, and the fourth range P4. Will be.

  When setting the second reference voice, the in-vehicle device 2 determines whether or not a command has been received from the portable terminal 3 (S305), and if no command has been received (S305: NO), a standby loop until the command is received. On the other hand, when the command is received (S305: YES), the first reference voice and the second reference voice included in the received voice are compared (S306). And the vehicle equipment 2 specifies that the position of the portable terminal 3 which transmitted the command is the driver's seat 42 side, when the first reference voice is larger based on the comparison result (S307: YES) ( S308), the process for the received command is not executed (S309). Thereby, the operation input by the portable terminal 3 from the driver's seat 42 side is restricted similarly to the first embodiment. Thereafter, the in-vehicle device 2 notifies the traveling message (S310) and waits for reception of the next command.

  On the other hand, when the first reference voice is smaller (S307: NO), the in-vehicle device 2 specifies that the position of the mobile terminal 3 that transmitted the command is not on the driver's seat 42 side (S311), and the received command The process for is executed (S312). That is, the in-vehicle device 2 of the present embodiment does not suppress the operation of the function unit when it is specified that the mobile terminal 3 is not on the driver seat 42 side.

According to this embodiment described above, the following effects can be obtained.
The in-vehicle device 2 generates and sets a second reference sound having characteristics different from the first reference sound in the reference sound generation unit 20, and either the first reference sound or the second reference sound is determined in the sound determination unit 21. If the first reference sound is larger than the second reference sound, the operation suppressing unit 22 suppresses the operation of the function unit. Thereby, the operation based on the operation input of the mobile terminal 3 from the driver seat 42 side is limited, while the operation based on the operation input from the passenger seat 43 or the rear seat is not suppressed. Therefore, as in the first embodiment, convenience is not impaired while ensuring safety.

Further, although the first reference voice is more easily attenuated than radio waves, there is a possibility that the first reference voice may reach the passenger seat 43 side outside the first range P1 in the vicinity of the driver seat 42. Therefore, whether or not the mobile terminal 3 is located on the driver's seat 42 side is determined by determining whether to suppress the operation of the functional unit depending on whether the first reference sound or the second reference sound is loud. It is possible to reliably determine whether it is located in the place.
Moreover, since the position of the portable terminal 3 can be specified, sensitivity can be improved or radio wave interference can be reduced by directing the directivity direction of the antenna (not shown) of the communication unit 11 to the specified position.

(Modification of the second embodiment)
Hereinafter, modifications of the second embodiment of the present invention will be described. The modification of the second embodiment is different from the second embodiment in that a plurality of second reference sounds are output. Since the vehicle communication system and the vehicle apparatus configuration are the same as those in the second embodiment, detailed description thereof is omitted.

  In the modification of 2nd Embodiment, the vehicle equipment 2 outputs the 2nd reference | standard sound used as a different characteristic in each of the 2nd range P2, the 3rd range P3, and the 4th range P4 (refer FIG. 8). That is, a plurality of types of second reference voices are generated and set. And when the vehicle equipment 2 compares a 1st reference | standard sound and a 2nd reference | standard sound, it determines further which sound of the characteristic is the largest. In other words, the in-vehicle device 2 determines which speaker 28 the mobile terminal 3 is closest to. Thereby, not only whether the position of the portable terminal 3 is the driver's seat 42 side, but the position in the passenger compartment 41 can be specified. Therefore, it can be identified more reliably that it is not the driver's seat 42 side, and it can be determined more appropriately whether or not the operation of the functional unit is suppressed.

(Third embodiment)
Hereinafter, a third embodiment of the present invention will be described with reference to FIGS. The third embodiment is different from the first embodiment in that voice determination is performed on the mobile terminal 3 side. Since the configuration of the vehicle communication system and the vehicle apparatus is the same as that of the first embodiment, detailed description thereof is omitted. In the third embodiment, suppression of operation by the mobile terminal 3 will be described in three types.

  As shown in FIG. 9, the mobile terminal 3 of the third embodiment further includes a terminal-side voice determination unit 60 in addition to the configuration of the first embodiment (see FIG. 3). The terminal side sound determination unit 60 is substantially the same as the sound determination unit 21 of the in-vehicle device 2, and the first reference sound exceeds the determination level in the sound input to the terminal side sound input unit 54. It is determined whether or not it is included. The terminal-side voice determination unit 60 is realized by software by a program executed by the terminal-side control unit 50.

The portable terminal 3 operates in the following three types when the first reference voice is included in the voice input to the terminal-side voice input unit 54.
Aspect A: Execution of an application program for linking with the vehicle-mounted device 2 is not permitted. That is, by restricting the activation of the application program, the operation input itself cannot be performed, and the function unit of the in-vehicle device 2 is prevented from operating. Hereinafter, an application program for linking with the vehicle-mounted device 2 is referred to as a terminal-side application.
-Mode B: The operation input with respect to the portable terminal 3 is canceled. That is, by restricting transmission of the operation information to the in-vehicle device 2, the function unit of the in-vehicle device 2 is prevented from operating.
Aspect C: Information (additional information) indicating that the first reference voice is included is transmitted to the in-vehicle device 2 together with the voice information. In this case, the operation of the functional unit is suppressed on the in-vehicle device 2 side.
Hereinafter, the above-described aspects A to C will be individually described. At this time, on the in-vehicle device 2 side, the generation and setting of the first reference sound described in the first embodiment and the output of the first reference sound from the speaker 28 provided on the driver seat 42 side are performed. Suppose that it is done.

<Aspect A: Aspect of restricting activation of terminal-side application>
In the aspect in which the activation of the terminal-side application is restricted, the mobile terminal 3 is executing the application activation restriction process shown in FIG. 10, and when the terminal-side application for cooperation with the in-vehicle device 2 is activated (S401), It connects with the vehicle equipment 2 (S402), and acquires the information regarding the 1st reference voice (S403). Here, the information related to the first reference sound is information that can identify the characteristics of the first reference sound, and whether or not the first reference sound is set, the frequency, the pitch (on / off interval), and the determination. Level. In addition, the order of step S401 and S402 is not limited to this, The order which starts a terminal side application in the state already connected with the vehicle equipment 2 may be sufficient. The first reference sound corresponds to the reference sound described in the claims.

  If the information regarding the 1st standard voice is acquired, vehicle equipment 2 will judge whether the 1st standard voice is set up (S404). As described in the first embodiment, the first reference voice is set when it is determined that the vehicle 40 is traveling on the in-vehicle device 2 side. Therefore, the in-vehicle device 2 first determines in step S404 whether the vehicle 40 is traveling, and if the vehicle 40 is traveling, that is, if the first reference voice is set (S404: YES). Then, it is determined whether or not the first reference voice is included in the voice input to the terminal-side voice input unit 54 (S405). In this case, whether or not the first reference sound is included is determined by the terminal-side sound determination unit 60 in the same manner as the sound determination unit 21 of the in-vehicle device 2. Is done based on.

  By the way, in the process of determining whether or not the first reference voice is included in step S405, it is necessary to perform so-called voice processing, which may increase the load on the terminal-side control unit 50. However, prior to step S405, it is first determined in step S404 whether or not the first reference voice is set, in other words, by determining in advance whether or not voice processing needs to be executed, the terminal The load on the side controller 50 can be reduced.

  If the in-vehicle device 2 determines that the first reference sound is included in the input sound (S405: YES), the in-vehicle device 2 stops the start of the terminal-side application (S406) and stops the start-up on the terminal-side display unit 52. A message is displayed (S407). The start / stop message is, for example, a message such as “Operation of the mobile terminal 3 while traveling is dangerous”.

Thus, the portable terminal 3 stops the activation of the terminal-side application for cooperating with the in-vehicle device 2 in the running state, and prevents the operation of the in-vehicle device 2 from the portable terminal 3 side. Thereby, transmission of the operation information from the portable terminal 3 to the in-vehicle device 2 is not performed, and as a result, the functional unit of the in-vehicle device 2 does not operate. Therefore, the action | operation of the function part of the vehicle equipment 2 can be suppressed.
Further, before performing the process of determining whether or not the first reference sound is included, it is determined whether or not the process is necessary (that is, whether or not the first reference sound is set). Therefore, the load on the portable terminal 3 can be reduced, and unnecessary consumption of the battery can be suppressed.

  On the other hand, when the first reference voice is not set (S404: NO) and when the first reference voice is not included in the input voice (S405: NO), the in-vehicle device 2 is on the terminal side. The activation of the application is continued (S408). Thereby, when the vehicle 40 is not traveling and it is not necessary to restrict the operation input from the portable terminal 3, and when the vehicle 40 is traveling, for example, it is an operation input by a passenger and it is not necessary to restrict the operation input. Then, the activation of the terminal-side application is continued, and the cooperation between the mobile terminal 3 and the in-vehicle device 2, that is, the operation of the in-vehicle device 2 from the mobile terminal 3 side becomes possible. Therefore, convenience is not reduced.

<Mode B: Mode for Canceling Operation Input>
In the mode of canceling the operation input, the mobile terminal 3 executes the command transmission suppression process shown in FIG. 11, and the terminal-side application is started in the same manner as steps S401 to S403 in the application start restriction process of FIG. And (S501), it connects with the vehicle equipment 2 (S502), and acquires the information regarding the 1st reference voice (S503). In this aspect, the activation of the terminal-side application is completed at this point. The first reference sound corresponds to the reference sound described in the claims.

  Subsequently, the vehicle-mounted device 2 waits for input of a command (S504), and when the command is input (S504: YES), when the first reference voice is set (S505: YES), the terminal side It is determined whether or not the first reference voice is included in the voice input to the voice input unit 54 (S506). When the first reference voice is input (S506: YES), the in-vehicle device 2 stops transmitting the input command to the in-vehicle device 2 (S507), and displays a command cancel message ( In step S508, the input command is canceled (S509). The command cancellation message is, for example, a message such as “The operation has been canceled because the vehicle is running”.

As described above, the operation of the functional unit of the in-vehicle device 2 can also be suppressed by restricting the transmission of the operation information related to the operation input input during traveling to the in-vehicle device 2. In this case, since the terminal-side application itself is activated, it is possible to save the trouble of activating the terminal-side application again when not running.
Further, when the first reference voice is not set (S505: NO) and the first reference voice is not included in the input voice (S506: NO), the in-vehicle device 2 issues a command. Since it transmits (S510), the cooperation with the portable terminal 3 and the vehicle equipment 2, ie, operation of the vehicle equipment 2 from the portable terminal 3 side is attained. Therefore, convenience is not reduced.

<Aspect C: Aspect for Transmitting Additional Information>
In the mode of transmitting the additional information, the mobile terminal 3 executes the additional information transmission process shown in FIG. 12, and the terminal-side application is activated in the same manner as steps S401 to S403 in the application activation restriction process of FIG. And (S601), it connects with the vehicle equipment 2 (S602), and acquires the information regarding the 1st reference voice (S603). In this aspect, the activation of the terminal-side application is completed at this point.

  Subsequently, the in-vehicle device 2 waits for input of a command (S604), and when the command is input (S604: YES), when the first reference voice is set (S605: YES), the terminal side It is determined whether or not the first reference voice is included in the voice input to the voice input unit 54 (S606). When the first reference voice is input (S606: YES), the in-vehicle device 2 is input together with additional information, that is, information indicating that the first reference voice is included in the input voice. The command is transmitted to the in-vehicle device 2 (S607). In this case, since the first reference voice is included on the in-vehicle device 2 side that has received the additional information + command, processing for suppressing the operation of the functional unit (see steps S106 to S107 in FIG. 4) is executed. .

As described above, the mobile terminal 3 indicates whether or not the first reference voice is input when an operation input is performed during traveling, in other words, whether or not the mobile terminal 3 is located on the driver's seat 42 side. The operation of the functional unit of the in-vehicle device 2 can also be suppressed by transmitting a command together with the additional information and making a determination based on the additional information on the in-vehicle device 2 side.
In addition, in-vehicle device 2 only has a command when the first reference voice is not set (S605: NO) and when the first reference voice is not included in the input voice (S606: NO). Is transmitted (S608), the cooperation between the portable terminal 3 and the vehicle-mounted device 2, that is, the operation of the vehicle-mounted device 2 from the portable terminal 3 side can be performed, and the possibility that convenience may be reduced can be reduced.

(Other embodiments)
The present invention is not limited to only those exemplified in each embodiment, and can be modified or expanded as follows, for example, without departing from the scope of the present invention.

  In the first embodiment, the road noise, the air volume of the air conditioner, and the volume of the audio are acquired as the vehicle information. However, it is not always necessary to acquire all of them, and it is not necessary to add to the condition for changing the characteristics. Moreover, you may add other than these to conditions. For example, the engine speed is obtained from an accelerator opening sensor that detects the opening of an accelerator pedal (not shown), and the engine state, that is, the loudness of the engine sound is obtained as vehicle information. It is possible to add to the condition.

  In step S209 of the first reference voice setting process of the first embodiment, it is of course possible to determine whether the predetermined value is 0 km / h, that is, whether or not the vehicle 40 is stopped. Further, as a condition for determining whether or not to set the first reference sound, the parking state may be determined based on the parking signal, and the first reference sound may be set and output when the parking state is released. . In this case, when the parking state is released, in other words, when the driver indicates the intention to start driving, the first reference voice is set, so that the safety can be further improved. Alternatively, the same effect can be obtained by setting the first reference sound when the shift lever is positioned other than the parking position (or neutral position) based on the shift position signal.

  When the predetermined value is set to about several km / h as in the first embodiment, output of sound may be started at the time when generation of the reference sound is started (step S201 in FIG. 5). By adopting such a configuration, it is possible to attract the driver's attention when the vehicle is stopped, and to urge the user not to operate the mobile terminal while traveling.

  In the first embodiment, the characteristics of the first reference sound are changed according to the air volume of the air conditioner. However, the characteristics of the reference sound signal may be changed according to the position of the air conditioner outlet. For example, even when it is determined that the air volume is small when viewed as an air conditioner as a whole, if a large air volume is set as a spot from the air conditioner outlet on the driver's seat 42 side, the volume is It is conceivable to change the characteristics of the reference voice so as to increase.

  In the second embodiment, the position of the portable terminal 3 is determined based on the volume relationship between the first reference sound and the second reference sound. However, even if the second reference sound is larger, the first reference sound is If it is above a predetermined level, it may be determined that the mobile terminal 3 is located on the driver's seat 42 side. For example, when there is no passenger in the passenger seat 43, the second reference sound from the speaker 28B on the passenger seat 43 side directly reaches the mobile terminal 3, while the first reference sound from the speaker 28A on the driver seat 42 side is the driver. It may be blocked by. In that case, even if the portable terminal 3 is located on the driver's seat 42 side, the second reference sound may be larger than the first reference sound. Therefore, in addition to the magnitude relationship between the first reference sound and the second reference sound, whether or not the operation of the functional unit is suppressed by setting whether or not the first reference sound exceeds a predetermined level is also determined. It can be judged on the safe side.

  When the position of the mobile terminal 3 is specified as in the second embodiment, if the position is displayed on the display unit 13, it is possible to know where the mobile terminal 3 is in the passenger compartment 41. It is possible to notify the driver not to operate from the driver seat 42 side by mistake.

  In the drawings, 1 is a vehicle communication system, 2 is an in-vehicle device (vehicle device), 3 is a portable communication terminal, 10 is a control unit, 11 is a communication unit, 17 is an audio output unit, 18 is a cabin environment adjustment unit, 19 is a vehicle information acquisition unit, 20 is a reference voice generation unit, 21 is a voice determination unit, 22 is an operation suppression unit, 28A is a first speaker, 28B, 28C, and 28D are second speakers, 52 is a terminal-side operation input unit, Reference numeral 40 denotes a vehicle, 41 denotes a passenger compartment, 42 denotes a driver's seat, 51 denotes a terminal side communication unit, 50 denotes a terminal side control unit, 54 denotes a terminal side voice input unit, and 60 denotes a terminal side voice determination unit.

Claims (11)

A device for a vehicle that is connected to a mobile terminal capable of voice call and has a functional unit that can be operated by an operation input to the mobile terminal,
A reference sound generation unit for generating a first reference sound having a preset characteristic;
An audio output unit provided in the vicinity of a driver's seat of the vehicle and having a first speaker for outputting the first reference audio;
A communication unit that communicates voice information related to voice input to the mobile terminal and operation information related to the operation input with the mobile terminal;
A voice determination unit that determines whether the voice information received from the portable terminal via the communication unit includes the first reference voice output from the first speaker;
When it is determined by the sound determination unit that the first reference sound is included in the sound information, an operation suppression unit that suppresses the operation of the function unit based on the operation information;
A vehicle apparatus comprising:   The vehicular apparatus according to claim 1, wherein the reference sound generation unit generates a low-frequency sound in an audible range and near a lower limit of the audible range as the first reference sound. A vehicle information acquisition unit that acquires vehicle information that is information related to the traveling state of the vehicle;
The vehicle operation device according to claim 1, wherein the operation suppression unit suppresses the operation of the functional unit when it is determined that the vehicle is in a running state based on the vehicle information acquired by the vehicle information acquisition unit. apparatus.   The device for a vehicle according to claim 3, wherein the reference sound generation unit changes a characteristic of the first reference sound in accordance with the vehicle information acquired by the vehicle information acquisition unit. A vehicle environment adjusting unit for adjusting the environment of the vehicle interior of the vehicle;
The said reference | standard audio | voice production | generation part changes the characteristic of said 1st reference | standard audio | voice according to the adjustment state of the environment of the said vehicle interior by the said vehicle interior environment adjustment part. The apparatus for vehicles as described. The reference sound generation unit further generates a second reference sound having characteristics different from the first reference sound,
The voice output unit further includes a second speaker that is provided at a position farther from the driver's seat than the first speaker and outputs the second reference voice,
The voice determination unit determines whether one of the first reference voice and the second reference voice included in the voice information received from the mobile terminal is large,
6. The operation suppression unit according to claim 1, wherein the operation suppression unit suppresses the operation of the function unit when the sound determination unit determines that the first reference sound is larger than the second reference sound. The vehicle apparatus as described in any one of Claims. A plurality of the second speakers are provided in the vehicle interior,
The reference sound generation unit generates sound having different characteristics for each of the plurality of second speakers as the second reference sound,
The voice determination unit determines which of the first reference voice and the plurality of second reference voices received from the mobile terminal is large,
The operation suppression unit identifies the position corresponding to the speaker to which the loudest sound is input based on the determination result by the sound determination unit as the position of the mobile terminal, and the position of the specified mobile terminal is on the driver's seat side The vehicle apparatus according to claim 6, wherein if there is, the operation of the function unit is suppressed. A vehicle device according to any one of claims 1 to 7,
A terminal-side communication unit that communicates with the vehicle device, a terminal-side voice input unit that inputs voice, and whether or not the first reference voice is included in the voice input to the voice input unit is determined. A vehicle communication system comprising: a terminal-side voice determination unit; and a mobile terminal having a terminal-side operation input unit that receives an operation input,
The portable terminal is capable of executing an application program that cooperates with the vehicular device, acquires information about the first reference voice via the terminal-side communication unit, and receives an operation input at the terminal-side operation input unit When the first reference voice is input to the terminal side voice input unit when it is pressed, activation of the application program is restricted. A vehicle device according to any one of claims 1 to 7,
A terminal-side communication unit that communicates with the vehicle device, a terminal-side voice input unit that inputs voice, and whether or not the first reference voice is included in the voice input to the voice input unit is determined. A vehicle communication system comprising: a terminal-side voice determination unit; and a mobile terminal having a terminal-side operation input unit that receives an operation input,
The portable terminal acquires information about the first reference voice via the terminal-side communication unit, and the terminal side when an operation input to the vehicle device is received by the terminal-side operation input unit The vehicle communication system, wherein the operation information is not transmitted to the vehicle device when the first reference sound is input to a sound input unit. A vehicle device according to any one of claims 1 to 7,
A terminal-side communication unit that communicates with the vehicle device, a terminal-side voice input unit that inputs voice, and whether or not the first reference voice is included in the voice input to the voice input unit is determined. A vehicle communication system comprising: a terminal-side voice determination unit; and a mobile terminal having a terminal-side operation input unit that receives an operation input,
The portable terminal acquires information about the first reference voice via the terminal-side communication unit, and the terminal side when an operation input to the vehicle device is received by the terminal-side operation input unit If the first reference voice is input to the voice input unit, additional information, which is information indicating that the first reference voice is included, is transmitted to the vehicle device together with the voice information and the operation information. ,
When the operation suppression unit of the vehicle device receives the additional information from the mobile terminal, the operation suppression unit suppresses the operation of the functional unit based on the operation information received together with the additional information. . A portable terminal connected to a sound generator capable of outputting a preset reference sound to the vicinity of the driver's seat,
A terminal-side communication unit that communicates information related to the reference voice with the vehicle device;
A terminal-side voice input unit for inputting voice;
A terminal-side voice determination unit that determines whether or not the reference voice is included in the voice input to the voice input unit;
A terminal-side operation input unit that receives operation inputs;
When it is determined that the reference voice is included by the terminal-side voice determination unit when an operation input is received by the terminal-side operation input unit, communication with the vehicle device or the operation input unit A terminal-side control unit that performs control to suppress reception of operation input by the
A portable terminal comprising:

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