JP5794971B2 - Audio output system - Google Patents

Description

  The present invention relates to a voice output system that is used in equipment mounted on a mobile body or a portable terminal that can be carried by a carrier and that outputs guidance voices related to guidance routes and traffic safety. .

When a driver uses a mobile phone in a car, in order to ensure safe driving, it is desirable to use a hands-free call, and an in-vehicle device equipped with a hands-free system has been realized.
Many conventional car navigation devices make hands-free calls via in-vehicle speakers, but from a privacy perspective, a system that enables hands-free calling using not only in-vehicle speakers but also headsets, earphone microphones, etc. Is also popular.
For example, in Patent Document 1, as a hands-free kit for making a hands-free call, in addition to an in-car speaker, a mobile playback device, a music playback device, and a headset are used to output a sound related to a call or music playback in the vehicle. Is possible from both the headset and the in-vehicle speaker.
On the other hand, in the conventional car navigation device, the guidance voice of the guidance route is output only from the in-vehicle speaker provided in the vehicle-mounted device, and the guidance voice is output to the headset, headphones, and hands-free kit additionally connected to the vehicle-mounted device. Not.

Special table 2009-529843 gazette

  In spite of the fact that the guidance voice of the car navigation system is very important information related to the safety of driving the vehicle, conventionally, it is output only by the speaker in the car and the driver is wearing a headset. There was a problem that there was a possibility of missing the guidance voice.

  In recent years, safe driving support systems that provide detailed information on vehicles and pedestrians detected by sensors and cameras installed on the roadside where accidents are likely to occur have been put into practical use. In order to use it, it is necessary to reliably notify the information provided by the system to the driver and pedestrian of the vehicle.

  The present invention has been made to solve the above-described problems. When a guidance voice for a guidance route by a navigation function or a guidance voice related to traffic safety provided by a safe driving support system is an output target, the voice output It is an object of the present invention to obtain an audio output system that can reliably listen to the guidance voice by detecting all the voice output devices capable of receiving the voice and outputting the guidance voice.

An audio output system according to the present invention is an audio output system including a navigation device having a navigation function and a plurality of audio output devices connected to the navigation device in a wired or wireless manner. enter the voice data, based on sound type or input source of the audio data is input, using the determined voice type determining unit a type of audio data, the information transmitted from the multiple audio output device The voice output device detection unit for determining whether or not the voice output device is capable of voice output and the position of the voice output device and the voice type determination unit determine whether the type of the voice data to be output is the guidance voice of the navigation function. If it is determined, the voice output device detected by the voice output device detector outputs a guidance voice of the voice data to be output. And an audio output determining unit that controls the audio output determining unit, when the audio output device is in the output sound other than the guide voice, to output interrupts voice guidance temporarily to the voice, guidance A storage unit that stores each type of audio and each position where the audio output device exists and a priority level in association with each other, and the audio output determination unit includes the type of guidance audio of the audio data to be output, and the audio output device A voice output device that reads out the priority level from the storage unit based on each existing position and can output the voice, and controls to output the guidance voice of the voice data to be output at a volume corresponding to the priority level. It is.

  According to the present invention, when it is determined that the type of audio data to be output input from the first mobile device is the guidance voice of the navigation function, the second that can communicate with the first mobile device. Since the voice output device of the mobile device outputs the guidance voice of the voice data to be output, the vehicle driver or pedestrian can surely hear the guidance voice.

It is a figure explaining the concept of the audio | voice output system by Embodiment 1 of this invention. 1 is a block diagram illustrating a configuration of an audio output system according to Embodiment 1 and peripheral portions thereof. It is a figure explaining the concept of the audio | voice output system by Embodiment 2 of this invention. It is a block diagram which shows the structure of the audio | voice output system by Embodiment 2, and its periphery part. It is a figure explaining the concept of the guidance audio | voice output system by Embodiment 3 of this invention. It is a block diagram which shows the structure of the guidance audio | voice output system by Embodiment 3, and its periphery part. It is a block diagram which shows the structure of the audio | voice output determination part by Embodiment 4 of this invention, and its periphery part. It is a figure which shows an example of a guidance audio | voice classification table. It is a figure which shows an example of an audio | voice output apparatus classification table. It is a figure which shows an example of another audio | voice volume pattern table. It is a figure which shows an example of the audio | voice output method. It is explanatory drawing of an audio | voice output apparatus detection method.

Embodiment 1 FIG.
FIG. 1 is a diagram for explaining the concept of an audio output system according to Embodiment 1 of the present invention, and shows a case where the audio output system of the present invention is applied as an audio output device of a car navigation device (vehicle-mounted device). Yes. As described above, conventionally, guidance information such as intersection information and various warning guidance generated by the car navigation device is output from the in-vehicle speaker, and the driver wears a headset or headphones. There was a possibility of missing the guidance voice.

  Therefore, in the audio output system according to the first embodiment, if the type of audio to be output is the guidance audio, all audio output devices connected to the apparatus that can output audio are detected and the guidance audio is output. For example, as shown in FIG. 1, even if a headset or headphones additionally connected to the apparatus via short-range wireless communication or wired cable such as Bluetooth (registered trademark; hereinafter omitted), the audio to be output If it is possible to output voice when it is determined that the data type is guidance voice, guidance voice is output. By doing so, guidance voice is output even if the voice output device is not originally intended for guidance voice output, and the driver does not miss the guidance voice.

  FIG. 2 is a block diagram showing the configuration of the voice output system according to the first embodiment and its peripheral part, and shows a case where the voice output system is applied as the voice output system of the vehicle-mounted device 1 having a car navigation function. 2, the audio output system according to Embodiment 1 includes an audio output control unit 2, and the audio generation unit 3, the audio output processing unit 4, the audio output devices 5-1, as peripheral units of the audio output system. 5-2, 5-3,... The voice output control unit 2 includes a voice type determination unit 6, a voice output device detection unit 7, and a voice output determination unit 8, and the voice generation unit 3 includes a guidance voice generation unit 9.

The sound generation unit 3 is a sound source of various sounds provided in the vehicle-mounted device 1 having a car navigation function. For example, a vehicle-mounted television or radio TV tuner or radio tuner, a CD or DVD playback device, a guidance sound generation unit 9 or the like. Is provided.
The guidance voice generation unit 9 is a sound source that generates a guidance voice of the car navigation function among the sound sources that constitute the voice generation unit 3, and receives guidance voice data such as intersection information and various warning guidance used in the navigation processing. Generate. The guidance voice generation unit 9 is connected to the voice output control unit 2, and the voice output control unit 2 determines whether or not the type of voice data to be output is guidance voice.
When the guidance voice generation unit 9 generates a guidance voice and transmits it to the voice type determination unit 6, in addition to the generated voice, data of “voice type” is also transmitted. The voice type determination unit 6 determines whether or not the voice is a guidance voice based on the “voice type”.
Specifically, for example, there are types (arbitrary) of guidance voice types from A) to F) below, and C), E), and F) are defined in advance so as to be determined as guidance voices of the navigation function. .
A) Operation sound B) VICS interrupt sound C) Rear-end collision information D) Voice recognition E) Hands-free call voice F) Intersection guidance

The audio output processing unit 4 is a functional unit that performs audio output processing of various audio output devices 5-1, 5-2, 5-3,. For example, it is connected to the voice generation unit 3 via the voice output control unit 2, and executes processing for outputting various types of voice data to the voice output devices 5-1, 5-2, 5-3,. It is realized by a DSP (Digital Signal Processor).
The audio output devices 5-1, 5-2, 5-3,... Are devices that output audio data that has been input, and in addition to in-vehicle speakers provided in the vehicle-mounted device 1, short-range wireless communication or wired There are additional headsets, headphones, etc. connected by cables.

  The sound output control unit 2 is a component that realizes its function by executing a sound output control program on the microcomputer of the vehicle-mounted device 1, and is input from various sound sources in the sound generation unit 3. If the type of the voice data is the guidance voice, the voice output devices 5-1, 5-2, 5-3,. The voice output processing unit 4 is controlled to output the guidance voice by the output device.

  The voice type determination unit 6 is a component connected to the sound source of various voices in the voice generation unit 3, and determines whether or not the type of the input voice data is a guidance voice. The guidance voice may be determined based on, for example, whether or not the voice data input source is the guidance voice generation unit 9.

The audio output device detection unit 7 is a component connected to each interface of the audio output devices 5-1, 5-2, 5-3,... Connected to the device regardless of wired or wireless. When the type determination unit 6 determines that the type of audio data to be output is guidance voice, all the audio output devices capable of outputting voice are detected by the negotiation process via each interface.
Here, an example of the audio output device detection method performed by the audio output device detection unit 7 will be described with reference to FIG. The communication unit A on the voice output device 5-1 side and the mobile unit side communication unit A of the voice output device detection unit 7 perform communication connection by short-range wireless communication such as Bluetooth or a priority cable, and the voice output device 5-1, Using the information sent from the communication unit 5-2, 5-3,..., The external device determination means C determines whether or not the connected device can output sound. Uses “device type” and “distance” as the information used to determine whether the connected device is capable of outputting audio, and where the device is located in the in-car seat To do. Further, when the external device determination means C determines that the connected device can output sound, the data storage unit D holds the information.

  The audio output determination unit 8 is a component that controls the audio output processing of the audio output processing unit 4. When the audio type determination unit 6 determines that the type of the audio data to be output is the guidance audio, the time point The voice output processing unit 4 is controlled so as to output the guidance voice in the voice output device detected as being capable of voice output to the voice output device detection unit 7.

Next, the operation will be described.
(1) Output of normal voice (other than guidance voice) The voice type determination unit 6 determines the type of voice data input from the voice generation unit 3. If it is determined that the type of the input voice data is not the guidance voice, the voice type determination unit 6 notifies the voice output determination unit 8 that the type of the voice data is not the guidance voice, and information on the input voice data ( (Including the type of sound).
The audio output determination unit 8 specifies an output target audio output device set in advance for each audio type based on the information input from the audio type determination unit 6, and the audio data is processed by the specified audio output device. The audio output processing unit 4 is controlled to output.
In this way, the audio output processing unit 4 causes the audio output device instructed by the audio output determination unit 8 to output the audio data as audio. For example, in-vehicle television or radio sound is output by an in-vehicle speaker, and in the case of a playback device such as a CD or DVD, it is output by a headset or headphones.

(2) Output of guidance voice When the voice type determination unit 6 determines that the type of voice data input from the voice generation unit 3 is the guidance voice generated by the guidance voice generation unit 9, the voice output determination unit 8 Is notified that it is a guidance voice, and information on the input voice data is output.
When the voice output determination unit 8 receives a notification from the voice type determination unit 6 that the type of the voice data to be output is the guidance voice, the voice output device detection unit 7 detects the voice output device that can output the voice. To instruct. Here, there is a method in which information detected in advance by the audio output device detection unit 7 is stored as data, and the audio output determination unit 8 refers to the data stored in the audio output device detection unit 7.

  The audio output device detection unit 7 executes a negotiation process with all audio output devices connected to the vehicle-mounted device 1 in accordance with an instruction from the audio output determination unit 8, and selects an audio output device that can output audio. Detect all. The detection result is output from the audio output device detection unit 7 to the audio output determination unit 8.

  In the audio output determination unit 8, the audio output process is performed so that the guidance audio data input via the audio type determination unit 6 is output by audio in all the audio output devices detected by the audio output device detection unit 7 and capable of outputting audio. Control part 4. Thereby, even if it is the headset and headphones additionally connected to the onboard equipment 1, guidance sound is output and the malfunction which the driver | operator with which these were equipped misses the said guidance sound can be avoided. If the voice output device that has been detected as capable of voice output is already outputting another voice, the voice is temporarily interrupted and output as described later in the fourth embodiment. .

  As described above, according to the first embodiment, if it is determined that guidance voices such as guidance routes, intersection information, and various warning guidance generated by the navigation function are to be output, voice output is possible. Since all the voice output devices are detected and the guidance voice is output, there is an effect that the driver of the vehicle can surely hear the guidance voice.

Embodiment 2. FIG.
In recent years, in addition to providing traffic jam information and accident information, detailed information on vehicles and pedestrians detected by sensors and cameras installed on the roadside in places where traffic accidents such as intersections and curves are likely to occur can be obtained. A safe driving support system that provides information (signal information and the like) to a vehicle as safe driving support system information (hereinafter referred to as DSSS (Driving Safety Support System) information) and urges the driver to pay attention is being put into practical use.
In the safe driving support system, the DSSS information is transmitted to an in-vehicle communication device mounted on a vehicle existing in a communication area of a roadside device such as a roadside wireless communication device or an optical beacon transmitter.
On the other hand, DSSS information related to pedestrians such as pedestrian detection information is not limited to the vehicle side, and if it can be recognized by the pedestrian side, accidents can be prevented from both directions of the vehicle and the pedestrian. Is possible.
The second embodiment notifies the pedestrian of the guidance voice of the DSSS information related to the pedestrian as described above.

FIG. 3 is a diagram for explaining the concept of the audio output system according to the second embodiment of the present invention, in which the audio output system of the present invention is applied as an audio output device of a mobile phone terminal carried by a pedestrian. Show. In the second embodiment, a DSSS receiver that receives DSSS information is built in the mobile phone terminal, and if the type of audio data to be output is the guidance voice of the DSSS information, it is installed or additionally connected to the mobile phone terminal. All the voice output devices capable of outputting voice are detected and the guidance voice is output.
For example, as shown in FIG. 3, the type of the output target audio data is the guidance voice even in a headset that is additionally connected by short-range wireless communication such as Bluetooth or a wired cable in addition to the speaker for calling of the mobile phone terminal. If voice output is possible at the time when it is determined that there is, a guidance voice is output. By doing in this way, the pedestrian who has a mobile telephone terminal can hear the guidance voice of DSSS information.

  FIG. 4 is a block diagram showing the configuration of the voice output system according to the second embodiment and its peripheral part, and shows a case where the voice output system is applied as the voice output system of the cellular phone terminal 1A. In FIG. 4, the audio output system of the second embodiment includes an audio output control unit 2, a guidance audio generation unit 10, and a DSSS reception unit 11, and the audio output processing unit 4 and audio as peripheral parts of the audio output system. Output devices 5a-1, 5a-2, 5a-3,. The audio output control unit 2 includes an audio type determination unit 6, an audio output device detection unit 7, and an audio output determination unit 8.

  The guidance voice generation unit 10 is a sound source that generates a guidance voice of DSSS information among the sound sources mounted on the mobile phone terminal. The DSSS information received by the DSSS reception unit 11 is information that requires guidance voice. If there is, guidance voice data is generated from the contents of the DSSS information. Note that the guidance voice generation unit 10 is connected to the voice output control unit 2, and the voice output control unit 2 determines whether or not the type of voice data to be output is the guidance voice of DSSS information.

  The DSSS receiver 11 is a receiver that receives DSSS information transmitted from a road device such as the optical beacon transmitter 12 and performs, for example, wireless communication with the optical beacon transmitter 12 using light waves via an optical transceiver. The optical beacon transmitter 12 includes an optical beacon header and a communication unit that executes communication processing using the optical beacon header, and transmits DSSS information to the communication device that has passed through its own communication area by optical communication.

  The voice output control unit 2 is a component that realizes its function by executing a program for voice output control by a microcomputer in the mobile phone terminal 1A. The voice output control unit 2 inputs voice data generated by various sound sources mounted on the mobile phone terminal 1A. If the type of the input voice data is DSSS information guidance voice, the voice output control unit 2 is mounted on the mobile phone terminal 1A. Among the additionally connected audio output devices 5a-1, 5a-2, 5a-3,..., All the audio output devices capable of outputting audio are detected, and the detected audio output device uses all the detected audio output devices. The audio output processing unit 4 is controlled to output.

The voice type determination unit 6 is a component connected to various sound sources mounted on the mobile phone terminal 1A, and determines whether or not the type of the input voice data is a guidance voice of DSSS information. Note that the guidance voice may be determined based on, for example, whether or not the voice data input source is the guidance voice generation unit 10 as in the first embodiment.
The audio output device detection unit 7 is a component connected to each interface of the audio output devices 5a-1, 5a-2, 5a-3,..., And the type of audio data to be output by the audio type determination unit 6 If it is determined that is a guidance voice, all voice output devices capable of outputting voice are detected by the negotiation process via each interface.
The audio output determination unit 8 is a component that controls the audio output process of the audio output processing unit 4. When the audio type determination unit 6 determines that the type of audio data to be output is a guidance audio, the audio output is performed. The voice output processing unit 4 is controlled so as to output the guidance voice by the voice output device capable of voice output detected by the device detection unit 7.

Next, the operation will be described.
(1) Output of normal voice (other than guidance voice) The voice type determination unit 6 determines the type of input voice data. Here, when it is determined that the type of the input voice data is not the guidance voice of the DSSS information, the voice type judgment unit 6 notifies the voice output judgment unit 8 that it is not the guidance voice, and the input Audio information (including the audio type) is output.
The audio output determination unit 8 specifies an output target audio output device set in advance for each audio type based on the information input from the audio type determination unit 6, and outputs the audio data by the specified audio output device. The audio output processing unit 4 is controlled to do so.
In this way, the audio output processing unit 4 causes the audio output device instructed by the audio output determination unit 8 to output the audio data as audio. For example, if the voice is for a normal call, the voice is output from a built-in speaker, and if the voice is for a hands-free call, the voice is output from a headset.

(2) Output of guidance voice When the voice type determination unit 6 determines that the type of the input voice data is the guidance voice of the DSSS information, the voice type determination unit 6 notifies the voice output determination unit 8 that it is the guidance voice of the DSSS information. And information on the input voice data is output.
When the voice output determination unit 8 receives a notification from the voice type determination unit 6 that the type of the voice data to be output is the guidance voice, the voice output device detection unit 7 detects the voice output device that can output the voice. To instruct.

  The audio output device detection unit 7 executes a negotiation process with all audio output devices mounted on or additionally connected to the mobile phone terminal in accordance with an instruction from the audio output determination unit 8 and can output audio. All output devices are detected. The detection result is output from the audio output device detection unit 7 to the audio output determination unit 8.

  In the audio output determination unit 8, the audio output processing unit is configured to output the guidance audio data input via the audio type determination unit 6 in an audio manner with all the audio output devices detected by the audio output device detection unit 7 and capable of outputting audio. 4 is controlled. Thereby, the guidance voice of the DSSS information is also output from the built-in speaker of the mobile phone terminal 1A and the headset additionally connected to the mobile phone terminal 1A. If the voice output device that has been detected as capable of voice output is already outputting another voice, the voice is temporarily interrupted and output as described later in the fourth embodiment.

  As described above, according to the second embodiment, a DSSS receiving unit that receives DSSS information that is transmitted from a safe driving support system and that is based on road conditions detected by a detection unit such as a sensor or a camera installed on the roadside. 11, when it is determined that the type of audio data to be output is a guidance voice of DSSS information, all audio output devices that can output audio are detected, and all audio outputs that can be detected are output. The device outputs a guidance voice of the voice data to be output. Accordingly, it is possible to output the guidance voice of the DSSS information not only to the driver of the vehicle but also to the pedestrian and the like, and it is possible to prevent an accident from occurring in both directions of the driver and the pedestrian.

  In the second embodiment, a system configuration in which DSSS information is received by the car navigation device instead of the cellular phone terminal 1A and guidance voice output control is possible is also conceivable, but the guidance voice of the DSSS information is transmitted by the cellular phone terminal. By outputting, it is possible to alert traffic to pedestrians.

  Moreover, although the case where the audio | voice output system by the said Embodiment 2 was applied to the mobile telephone terminal 1A was shown, even if it applies to portable information terminals, such as PDA (Personal Digital Assistant) which a person who can become a pedestrian can carry. Similar effects can be obtained.

Further, in the second embodiment, the case where the mobile phone terminal 1A outputs the guidance voice of the DSSS information has been described. However, when the mobile phone terminal 1A has a navigation function, in addition to the guidance voice of the DSSS information, Similarly, the guidance voice generated by the navigation function may be output by all voice output devices capable of voice output.
Here, when the output timing of the guidance voice in the normal navigation and the guidance voice of the DSSS information overlap, an output priority level is set for the type of the guidance voice as described later in the fourth embodiment. Thereby, priority is given to the output of the voice that should be promptly transmitted to the user based on the priority level.

  Furthermore, although the said Embodiment 2 showed the case where the guidance audio | voice of DSSS information was notified to a pedestrian by providing the DSSS receiving part 11 in the mobile telephone terminal 1A, the vehicle equipment 1 shown in the said Embodiment 1 was shown. DSSS receiving unit 11 is provided, and the guidance voice data generated based on the DSSS information received by DSSS receiving unit 11 can be output when it is determined that the type of voice data to be output is the guidance voice. An audio output device may be configured to output audio. In this way, the driver can surely hear the guidance voice of the DSSS information.

Embodiment 3 FIG.
FIG. 5 is a diagram for explaining the concept of an audio output system according to Embodiment 3 of the present invention, and shows a case where the audio output system of the present invention is applied as an audio output device of a car navigation device (vehicle-mounted device). Yes. In the third embodiment, the audio output system of the vehicle-mounted device including the car navigation device is a voice output device of a mobile phone terminal that is not directly connected to the vehicle-mounted device in addition to the audio output device that is mounted on or additionally connected to the vehicle-mounted device. A voice output device capable of outputting voice is detected from the devices, and the guidance voice is output by all the detected voice output devices.

  For example, as shown in FIG. 5, a built-in speaker mounted in a vehicle-mounted device, a short-range wireless communication such as Bluetooth or a headset additionally connected by a wired cable, and a mobile phone terminal that is connected to the vehicle-mounted device. Even if it is a speaker and a headphone additionally connected to the mobile phone terminal, if the type of audio data to be output is determined to be guidance voice, the guidance voice is output if it is connected so that voice output is possible. . Even in this way, guidance voice is output even in a voice output device that is not originally intended for outputting guidance voice, so that a driver, a pedestrian carrying a mobile phone terminal, etc. can hear the guidance voice reliably.

  FIG. 6 is a block diagram showing the configuration of the voice output system according to the third embodiment and its peripheral part, and shows a case where the voice output system is applied as a voice output system of the vehicle-mounted device 1B having a car navigation function. In FIG. 6, the audio output system of the third embodiment includes an audio output control unit 2 and an in-vehicle device side communication unit 13, and a guidance audio generation unit 9 and an audio output processing unit 4 as peripheral parts of the audio output system. , Voice output devices 5-1, 5-2, 5-3,. The mobile phone terminal 1C includes an audio output control unit 2a, an audio output processing unit 4a, audio output devices 5a-1, 5a-2, 5a-3,. A communication unit 14 is provided.

  The guidance voice generation unit 9 is a sound source that generates guidance voice of the car navigation function among the sound sources mounted on the vehicle-mounted device, and generates guidance voice such as intersection information and various warning guidance used in the navigation processing. . The guidance voice generation unit 9 is connected to the voice output control unit 2 as in the first embodiment, and the voice output control unit 2 determines whether the output target voice is a guidance voice.

  The audio output processing unit 4 is a functional unit that performs audio output processing of various audio output devices 5-1, 5-2, 5-3,. For example, a process of connecting various sound data to the sound output devices 5-1, 5-2, 5-3,... Is performed by connecting to a sound source mounted on the vehicle-mounted device 1B via the sound output control unit 2. This is realized by a DSP. In the audio output devices 5-1, 5-2, 5-3,..., In addition to in-vehicle speakers provided in the vehicle-mounted device 1B, headsets, headphones, etc. additionally connected by short-range wireless communication or wired cables Is also included.

  The sound output control unit 2 is a component that realizes its function by executing a sound output control program with a microcomputer in the vehicle-mounted device 1B. The voice output control unit 2 inputs voice data generated by a sound source mounted on the vehicle-mounted device 1B, and if the type of the input voice data is a guidance voice generated by the car navigation function, it is mounted on the vehicle-mounted device 1B. Among the additionally connected audio output devices 5-1, 5-2, 5-3,..., All the audio output devices that can output audio are detected, and guidance audio is output by all the detected audio output devices. The voice output processing unit 4 and the voice output processing unit 4a of the mobile phone terminal 1C are controlled so as to do so.

The sound type determination unit 6 is a component connected to various sound sources in the sound generation unit 3, and determines whether or not the type of the input sound data is a guidance sound. The guidance voice may be determined based on, for example, whether or not the voice data input source is the guidance voice generation unit 9.
The audio output device detection unit 7 is a component connected to each interface of the audio output devices 5-1, 5-2, 5-3,..., And the type of audio data to be output by the audio type determination unit 6 If it is determined that is a guidance voice, all voice output devices capable of outputting voice are detected by the negotiation process via each interface.
The audio output determination unit 8 is a component that controls the audio output processing of the audio output processing units 4 and 4a, and in particular, the audio type determination unit 6 determines that the type of the audio data to be output is the guidance audio. The voice output processing units 4 and 4a are controlled so as to output the guidance voice in the voice output device capable of voice output detected by the voice output device detection units 7 and 7a.

  The in-vehicle device side communication unit 13 is a component that communicates with the mobile side communication unit 14 provided in the mobile phone terminal 1C, and is connected to the mobile side communication unit 14 by short-range wireless communication such as Bluetooth or a wired cable.

  The audio output control unit 2a is a component that realizes its function by executing an audio output control program by a microcomputer in the mobile phone terminal 1C, and includes an audio output device detection unit 7a. In the audio output control unit 2a, when it is notified from the vehicle-mounted device side via the portable communication unit 14 that the type of audio data to be output is a guidance audio, the audio that can be output by the audio output device detection unit 7a All the output devices are detected, and detection information for specifying the detected audio output device is transmitted to the vehicle-mounted device side via the portable communication unit 14.

  The audio output processing unit 4a is a functional unit that performs audio output processing of various audio output devices 5a-1, 5a-2, 5a-3,... Connected to the mobile phone terminal 1C. It is realized by the DSP that executes. In the audio output devices 5a-1, 5a-2, 5a-3,..., In addition to a speaker built in the mobile phone terminal 1C, a headset or headphones additionally connected by short-range wireless communication or a wired cable Is also included.

Next, the operation will be described.
(1) Output of normal voice (other than guidance voice) First, the voice type determination unit 6 determines the type of voice data input from a sound source mounted on the vehicle-mounted device 1B. If it is determined that the input voice data is not a guidance voice, the voice type determination unit 6 notifies the voice output determination unit 8 that the voice data is not a guidance voice, and information on the input voice data (the voice Are included).
The audio output determination unit 8 specifies an output target audio output device set in advance for each audio type based on the information input from the audio type determination unit 6, and outputs the audio using the specified audio output device. The audio output processing unit 4 is controlled.

  In this way, the audio output processing unit 4 causes the audio output device instructed by the audio output determination unit 8 to output the audio data as audio. For example, in-vehicle television or radio sound is output by an in-vehicle speaker, and in the case of a playback device such as a CD or DVD, it is output by a headset or headphones. In addition, the mobile phone terminal 1C outputs the voice of a normal call with a built-in speaker, and outputs the voice of a hands-free call with a headset or the like.

(2) Output of guidance voice When the voice type determination unit 6 determines that the type of the voice data input from the sound source mounted on the vehicle-mounted device 1B is the guidance voice, the voice type determination unit 6 indicates that the voice is determined to be a guidance voice. And information on the input voice data is output.
When the voice output determination unit 8 receives a notification from the voice type determination unit 6 that the type of the voice data to be output is the guidance voice, the voice output device detection unit 7 detects the voice output device that can output the voice. And notifies the mobile phone terminal 1C via the in-vehicle device side communication unit 13 that the type of audio data to be output is a guidance voice.

  The audio output device detection unit 7 executes a negotiation process with all audio output devices mounted on or additionally connected to the vehicle-mounted device 1B in accordance with an instruction from the audio output determination unit 8, and an audio output capable of audio output Detect all devices. The detection result is output from the audio output device detection unit 7 to the audio output determination unit 8.

  In the mobile phone terminal 1C, when the mobile communication unit 14 receives a notification that the type of audio data to be output is guidance voice, the mobile phone terminal 1C instructs the audio output device detection unit 7a to detect an audio output device that can output audio. To do. The audio output device detection unit 7a performs negotiation processing with all audio output devices that are mounted on or additionally connected to the mobile phone terminal 1C, and detects all audio output devices that can output audio. The result of this detection is transmitted from the voice output device detection unit 7a to the vehicle-mounted device side via the portable communication unit 14.

The voice output determination unit 8 controls the voice output processing unit 4 to output the guidance voice in the voice output device capable of voice output detected by the voice output device detection unit 7. Thereby, the voice output processing unit 4 causes the voice output device detected by the voice output device detection unit 7 to output the guidance voice.
At the same time, the voice output determination unit 8 transmits the guidance voice data to be output to the mobile phone terminal 1 </ b> C via the in-vehicle device side communication unit 13. When the portable communication unit 14 receives the guidance voice data to be output from the vehicle-mounted device side, it is output to the voice output processing unit 4a. Thereby, the voice output processing unit 4a causes the voice output device capable of outputting voice at the time of receiving the guidance voice data to output the guidance voice data.

  By doing in this way, in addition to the headset and headphones additionally connected to the vehicle-mounted device 1B, the guidance voice is output also in the audio output device of the mobile phone terminal 1C not directly connected to the vehicle-mounted device 1B. If the voice output device that has been detected as capable of voice output is already outputting another voice, the voice is temporarily interrupted and output as described later in the fourth embodiment.

  As described above, according to the third embodiment, when it is determined that the type of audio data to be output is the guidance voice, each mobile phone terminal 1C capable of communicating with the vehicle-mounted device 1B can output a voice. Since all voice output devices are detected and the guidance voice is output by all the voice output devices capable of outputting the detected voice, the driver of the vehicle equipped with the vehicle-mounted device 1B or the mobile phone terminal 1C is carried and moved. The effect that the pedestrian who hears can hear a guidance audio | voice reliably is acquired.

  In the third embodiment, the DSSS receiver shown in the second embodiment is provided on the vehicle-mounted device 1B, and the guidance voice generated based on the DSSS information received by the DSSS receiver 11 is You may comprise so that the said guidance audio | voice may be output with the audio | voice output apparatus of 1 C of mobile phone terminals by transmitting to the mobile phone terminal 1C via the side communication part 13 and the mobile side communication part 14. FIG. Thereby, it is possible to prevent an accident from occurring in both directions between the driver and the pedestrian.

Embodiment 4 FIG.
In the fourth embodiment, details of an audio output pattern to the audio output device determined by the audio output determination unit 8 will be described. The contents of the fourth embodiment can be applied to any configuration from the first embodiment to the third embodiment, and the configuration is included in the present invention.
FIG. 7 is a block diagram showing the configuration of an audio output determination unit and its peripheral units according to Embodiment 4 of the present invention. In FIG. 7, the audio output determination unit 8 according to the fourth embodiment includes a data reading unit 15, an output method determination unit 16, and an output method setting unit 17. The storage unit 18 is a storage device that can read the stored contents from the data reading unit 15, and stores a guidance voice type table 19, a voice output device type table 20, and other voice volume pattern table 21. .

  Based on the type of audio data to be output input from the audio type determination unit 6 and the type of audio output device capable of outputting audio input from the audio output device detection unit 7, the data reading unit 15 receives data from the storage unit 18. This is a configuration unit that reads data used to determine the audio output method. The output method determination unit 16 is a component that generates audio output method data of the output target audio using the data read by the data reading unit 15. The output method setting unit 17 is a component connected to the audio output processing unit 4 and sets the audio output method data generated by the output method determining unit 16 in the audio output processing unit 4.

  The guidance voice type table 19 is table data in which various types of guidance voices and priority levels related to their output are set in association with each other. An example of the guidance voice type table 19 is shown in FIG. In the example of FIG. 8, there are rear-end collision information obtained from DSSS information as guidance voice types, intersection guidance and prefectural border guidance obtained by a normal navigation function, and hands-free call voice as other voice types other than guidance voice. Is set. Priority levels A to D are assigned to each type of audio, and the degree of priority for output is A> B> C> D. The voice type and the priority level corresponding to the voice type can be arbitrarily set in the guidance voice type table 19 using an input device (not shown). In addition to the example of FIG. 8, the type of voice type may include a level crossing guidance, a curve warning, or a warning light guidance based on information flowing from the vehicle body.

  The audio output device type table 20 is table data in which various audio output devices and priority levels related to the audio output are set in association with each other. An example of the audio output device type table 20 is shown in FIG. In the example of FIG. 9, in-vehicle speakers, headphones (driver's seat), and headphones (rear seat) are set as the types of audio output devices. Priority levels 1 to 3 are assigned to each type of audio output device, and the degree of priority for output is 1> 2> 3. The type of the audio output device and the priority level corresponding to the type can be arbitrarily set in the audio output device type table 20 using an input device (not shown).

  The other sound volume pattern table 21 is table data that summarizes sound volume patterns for each type of sound output device set to sound (other sound) other than the guide sound when the guide sound is output. FIG. 10 is a diagram illustrating an example of the other sound volume pattern table 21. In the example of FIG. 10, speakers (in-vehicle speakers) and headphones / earphones are set as the types of audio output devices. Volume patterns corresponding to each type of audio output device are identified by pattern identifiers V1 to V4, respectively.

In the volume pattern identified by the pattern identifier V1, when outputting the guidance voice, the other sounds of the speaker, the headphone, and the earphone are all muted. In the volume pattern identified by the pattern identifier V2, when the guidance voice is output, the other voice output from the driver's side speaker is muted, and the headphone / earphone is muted only on the right ear side. In the volume pattern identified by the pattern identifier V3, when outputting the guidance voice, only the speaker on the driver's seat side and the volume of other voices are lowered, and the volume of the headphone / earphone is lowered only on the right ear side. In the volume pattern of the pattern identifier V4, the volume of other sounds currently output from both the speaker and the headphones / earphones is maintained.
The other audio volume pattern table 21 is also configured so that various types of audio output devices and corresponding volume patterns can be arbitrarily set using an input device (not shown).

Next, the operation will be described.
First, the data reading unit 15 searches the guidance voice type table 19 of the storage unit 18 based on the type of guidance voice data input from the voice type determination unit 6, reads the priority level of the guidance voice data, and outputs it. It outputs to the method determination part 16. Further, the data reading unit 15 searches the audio output device type table 20 in the storage unit 18 based on the type of each audio output device capable of outputting audio input from the audio output device detection unit 7, and the audio output device Are output to the output method determination unit 16.

  As described above, the output method determination unit 16 indicates a voice output device that outputs voice (other voices) other than the guidance voice up to this point when data related to guidance voice output is input from the data reading unit 15. Information is output to the data reading unit 15 to instruct to acquire volume pattern data of other audio corresponding to these audio output devices. The data reading unit 15 searches the other audio volume pattern table 21 in accordance with an instruction from the output method determining unit 16, reads out the volume pattern data corresponding to the audio output device that outputs the other audio, and outputs the method. 16 is output.

  The output method determination unit 16 outputs the guidance voice at a volume corresponding to the priority level of the guidance voice and the voice output device in the voice output device capable of outputting the voice when the data related to the guidance voice and other voices is input from the data reading unit 15. At the same time, for other voices that have been output so far, voice output method data for changing to voice output according to the volume pattern data read from the other voice volume pattern table 21 is generated. Thereafter, the output method setting unit 17 sets the audio output method data generated by the output method determining unit 16 in the audio output processing unit 4. Thereby, the guidance voice can be temporarily interrupted and outputted during the output of the voice (music or the like) that can be constantly outputted by the voice output device.

FIG. 11 is a diagram illustrating an example of the audio output method determined by the output method determining unit 16, and illustrates the audio output method data generated based on the contents of the table data of FIGS. In FIG. 11, for example, “rear collision information” is a guidance voice having a high priority level obtained from DSSS information. For this reason, in order to make it easier for the driver to hear the guidance voice of the rear-end collision information, the voice (other voices) currently output from the headphone of the driver seat with a high priority level is silenced, and the guidance voice has a volume “high”. Is output.
In addition, even if the guidance sound of the same “Rear-end collision information” is used, in the rear seat headphones with a low priority level, other sounds output from the headphones are muted only in the right ear, and the guidance voice sets the volume to “medium”. Is output. As for other hands-free call voice, which is other voice, the voice is output only in the driver's seat in consideration of private.

  As described above, according to the fourth embodiment, the storage unit 18 that stores the type of the guidance voice and the priority level in association with each other is provided, and the voice output determination unit 8 includes the guidance voice of the voice data to be output. The priority level is read from the storage unit 18 based on the type, and the guidance voice of the voice data to be output is output at a volume corresponding to the priority level by a voice output device capable of voice output. By doing in this way, a guidance voice can be temporarily interrupted and outputted during the output of the voice (music etc.) which can be outputted steadily by the voice output device. Also, by changing the output volume according to the priority level, it is possible to reduce the passenger's burden.

  Further, according to the fourth embodiment, the voice output determination unit 8 reads the priority level of the guidance voice from the storage unit 18 based on the type of guidance voice of the voice data to be output, and detects the voice output device. When the priority level of the audio output device is read from the storage unit 18 based on the type of the audio output device detected by the unit 7 and the audio output device capable of outputting audio outputs the guidance voice of the audio data to be output. The guidance voice and the voice output device output at a volume corresponding to each priority level. Thereby, for example, the voice output method to the driver and the passenger can be distinguished, and the voice output destination and the output volume can be changed according to the priority level.

  Furthermore, according to the fourth embodiment, when outputting the guidance voice, the volume pattern data for each type of the voice output device set to the voice (other voice) other than the guidance voice is stored, and the voice output determination unit 8 is an audio output device that reads out sound volume pattern data of the audio output device from the storage unit 18 based on the type of the audio output device detected by the audio output device detection unit 7 and can output the audio. When outputting the data guidance voice, the voice other than the guidance voice output by the voice output device is output at the volume defined by the volume pattern data. In this way, in addition to the guidance voice, the voice output destination and the output volume can be changed according to the priority level. By doing in this way, the guidance voice can be temporarily interrupted and outputted during the output of the voice (other sounds such as music) other than the guidance voice that can be constantly outputted by the voice output device.

  1, 1B On-board unit, 1A, 1C mobile phone terminal, 2, 2a audio output control unit, 3 audio generation unit, 4, 4a audio output processing unit, 5-1, 5-2, 5-3, 5a-1, 5a-2, 5a-3 audio output device, 6 audio type determination unit, 7, 7a audio output device detection unit, 8 audio output determination unit, 9, 10 guidance audio generation unit, 11 DSSS reception unit, 12 optical beacon transmitter , 13 On-vehicle device side communication unit, 14 Mobile side communication unit, 15 Data reading unit, 16 Output method determination unit, 17 Output method setting unit, 18 Storage unit, 19 Guidance voice type table, 20 Voice output device type table, 21 Others Voice volume pattern table.

Claims (2)

A navigation device having a navigation function ;
A voice output system comprising a plurality of voice output devices connected to the navigation device by wire or wirelessly,
The navigation device
Inputting sound data output object, based on sound type or input source of the audio data is input, and determines the sound type determination unit a type of the audio data,
Before using the information sent from Kifuku number of audio output device, the audio output device whether the audio output can determine the sound output apparatus detecting unit whether exists at any position,
When the voice type determination unit determines that the type of the voice data to be output is the guidance voice of the navigation function, the voice data to be output by the voice output device detected by the voice output device detection unit and an audio output determining unit that controls to output the guidance voice for,
When the voice output device is outputting voice other than the guidance voice, the voice output determination unit temporarily interrupts the voice and outputs the voice.
A storage unit that stores the type of the guidance voice and each position where the voice output device exists and a priority level in association with each other;
The voice output determination unit reads the priority level from the storage unit based on the type of guidance voice of the voice data to be output and the position where the voice output device is present, and can output the voice. An audio output system that controls an output device to output guidance voice of audio data to be output at a volume corresponding to the priority level . Ru Tei transmitted from the safety driving support system, a portable telephone terminal having a receiver for receiving safe driving support information based on the road condition detected by the detection means installed in the roadside,
A voice output system comprising a plurality of voice output devices connected to the mobile phone terminal by wire or wirelessly,
The mobile phone terminal
Inputting sound data output object, based on sound type or input source of the audio data is input, and determines the sound type determination unit a type of the audio data,
Using information sent from a plurality of audio output devices connected to the mobile phone terminal by wire or wirelessly, it is determined whether or not the audio output device can output audio and at which position An audio output device detector that
When the voice type determination unit determines that the type of the voice data to be output is the guidance voice of the safe driving support information, the voice of the output target is detected by the voice output device detected by the voice output device detection unit. A voice output determination unit that controls to output data guidance voice ;
When the voice output device is outputting voice other than the guidance voice, the voice output determination unit temporarily interrupts the voice and outputs the voice.
A storage unit that stores the type of the guidance voice and each position where the voice output device exists and a priority level in association with each other;
The voice output determination unit reads the priority level from the storage unit based on the type of guidance voice of the voice data to be output and the position where the voice output device is present, and can output the voice. An audio output system that controls an output device to output guidance voice of audio data to be output at a volume corresponding to the priority level .

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