JP2014204158A - Communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to start short-range wireless communication with an on-vehicle device without requiring operation to give instruction to start short-range wireless communication with the on-vehicle device.SOLUTION: A communication device determines whether there is sound input specific to a vehicle via a microphone 11 or not (S100). If it was determined that there is sound input specific to the vehicle, the communication device performs processing (S110) to start short-range wireless communication with a navigation device 2 mounted on the vehicle via a short-range wireless communication unit 14.

Description

  The present invention relates to a communication device including a microphone and a short-range wireless communication unit for short-range wireless communication.

  Conventionally, in a telephone that is separated into a master unit and a slave unit, whether the master unit and the slave unit are paired with a state detection unit that detects whether the master unit and the slave unit are separated or joined. A pairing detection unit that detects the connection between the parent device and the child device when it is detected that the parent device and the child device are joined and the parent device and the child device are not paired. (For example, refer to Patent Document 1).

JP 2011-101125 A

  By the way, as a toy for children, a puppet-type musical instrument (for example, manufactured by TAKARATOMY ARTS Co., Ltd., trade name: Pakupaku Chorus) that plays music while packing the mouth according to user operation is commercialized. . This puppet-type instrument has a built-in microphone and speaker, which can be used to output words recorded in advance using the microphone or to play music stored in the memory while the mouth is packed in response to user operations. It has a function to do.

  By providing such a puppet-type musical instrument with a short-range wireless communication function, when the puppet-type musical instrument is brought into the vehicle, the puppet-type musical instrument and the audio device and navigation mounted on the vehicle via the short-range wireless communication are provided. It is conceivable that the sound output from the speaker of the puppet instrument is output from the vehicle speaker connected to the vehicle-mounted device in cooperation with the vehicle-mounted device such as a device.

  However, in order to communicate with the connected device via the short-range wireless communication function, the device registration is completed by performing an operation called pairing for registering the devices connected to the short-range wireless communication. After that, it is necessary to perform an operation to instruct the start of communication with the connection partner device when necessary. That is, every time the puppet instrument is brought into the vehicle, it is necessary to operate the operation unit of the puppet instrument to instruct the start of short-range wireless communication with the in-vehicle device. However, each time the puppet instrument is brought into the vehicle, there is a problem that it is troublesome and troublesome to perform an operation for instructing the start of short-range wireless communication with the in-vehicle device.

  The present invention has been made in view of the above problems, and an object of the present invention is to enable short-range wireless communication with an in-vehicle device to be started without requiring an operation for instructing the start of the short-range wireless communication with the in-vehicle device. To do.

  In order to achieve the above object, the invention described in claim 1 is a communication device including a microphone (11) and a short-range wireless communication unit (14) for performing short-range wireless communication, via the microphone. Sound input determination means for determining whether or not there is a sound input specific to the vehicle, and a specific in-vehicle device mounted on the vehicle via the short-range wireless communication unit when it is determined that there is a sound input specific to the vehicle; And communication start processing means for executing processing for starting short-range wireless communication.

  According to such a configuration, it is determined whether or not there is a sound input peculiar to the vehicle via the microphone, and when it is determined that there is a sound input peculiar to the vehicle, it is mounted on the vehicle via the short-range wireless communication unit. Because the process for starting short-range wireless communication with a specific in-vehicle device is executed, it is possible to perform short-range wireless communication with the in-vehicle device without requiring an operation for instructing the start of short-range wireless communication with the in-vehicle device. Wireless communication can be started.

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

It is a figure which shows the whole structure of the communication apparatus which concerns on 1st Embodiment of this invention. It is a figure which shows the block configuration of the communication apparatus which concerns on 1st Embodiment of this invention. It is an operation | movement flow of the communication apparatus which concerns on 1st Embodiment of this invention. It is an operation | movement flow of the communication apparatus which concerns on 2nd Embodiment of this invention.

(First embodiment)
FIG. 1 shows the overall configuration of a communication apparatus according to the first embodiment of the present invention. The communication device 1 plays a song stored in the memory while crawling in response to a user operation, speaks a pre-recorded word using a built-in microphone, and operates a user operation. It is configured as a puppet-type instrument that plays on the Doremi scale with a cry or instrument. In this puppet-type instrument, a packet is manipulated by inserting a hand into the puppet cavity 1a and moving the fingertip so that the mouth of the puppet is packed.

  The communication device 1 is connected to the navigation device 2 mounted on the vehicle via Bluetooth communication, so that the sound output from the built-in speaker of the puppet instrument can be output from the vehicle speaker 3 connected to the navigation device 2. It has become.

  FIG. 2 shows a block configuration of the communication apparatus 1. The communication device 1 includes an operation unit 10, a microphone 11, a speaker 13, a Bluetooth communication unit 14, and a control unit 15.

  The operation unit 10 includes a power switch, setting switches for performing various settings, a plurality of keyboard-type switches, and the like, and outputs signals corresponding to various user switch operations to the control unit 15. The power switch and the setting switch are provided outside the puppet, and the plurality of keyboard-type switches are provided in the back of the puppet cavity 1a.

  The microphone 11 collects ambient sounds and outputs an audio signal corresponding to the collected sounds to the CPU 15a and the audio input determination circuit 15e of the control unit 15. The speaker 13 outputs a sound corresponding to the audio signal input from the control unit 15.

  The Bluetooth communication unit 14 is provided to communicate with an external device (for example, an audio device or a navigation device mounted on a vehicle) that supports the Bluetooth standard.

  The Bluetooth communication unit 14 performs predetermined frequency conversion, demodulation, amplification, A / D conversion, etc. according to the Bluetooth standard on the signal received via the antenna (not shown), and controls the resulting data The data received from the control unit 15 is subjected to predetermined D / A conversion, amplification, modulation, frequency conversion, etc. according to the Bluetooth standard, and the resulting data is transmitted via an antenna. Output.

  The control unit 15 is configured as a computer including a CPU 15a, a RAM 15b, a ROM 15c, and an audio signal input unit 15e, and the CPU 15a performs various processes according to programs stored in the ROM 15b.

  The voice input determination circuit 15e is a circuit for determining a vehicle-specific sound input from the microphone 11. The audio input determination circuit 15 e includes a band pass filter 151 and a comparator 152.

  The pass band of the band-pass filter 151 in the present embodiment is configured to pass the frequency component of the sound when the vehicle door is closed and to block components other than this frequency component.

  The comparator 152 outputs a low level signal when the voltage level of the signal input from the band pass filter 151 is less than the reference value, and outputs the signal when the voltage level of the signal input from the band pass filter 151 is equal to or higher than the reference value. A high level signal is output.

  When the sound when the vehicle door is closed is collected by the microphone 11, the sound signal from the microphone 11 passes through the bandpass filter 151 and is input to the comparator 152, and a high level signal is output from the comparator 152. .

  When the microphone 11 collects sound having a frequency component different from that when the vehicle door is closed, the sound signal from the microphone 11 does not pass through the band-pass filter 151, and therefore the low level from the comparator 152. Is output.

  Thus, when the sound when the door of the vehicle is closed is collected by the microphone 11, a high level signal is output from the output terminal of the comparator 152, and the sound when the door of the vehicle is closed by the microphone 11. When sounds having different frequency components are collected, a low level signal is output from the output terminal of the comparator 152.

  By the way, in order to perform short-range wireless communication according to the Bluetooth standard between the communication device 1 and the navigation device 2, an operation called pairing for registering devices connected to the short-range wireless communication is performed once. It is necessary to complete registration between devices. Specifically, the communication device 1 is turned on so that it can be searched. Subsequently, when a search operation is performed from the navigation device 2, a list of surrounding Bluetooth devices in a searchable state is displayed on the monitor of the navigation device 2, and the communication device 1 is designated from the list. Thereafter, the operation unit of the navigation device 2 is operated to input the key ID of the communication device 1, and when the registration of the key ID of the communication device 1 to the navigation device 2 is completed, the pairing ends. In this way, once the pairing is performed, the short-range wireless communication is performed between the paired devices in accordance with an operation for starting the short-range wireless communication by the user from the next time. .

  FIG. 3 shows an operation flow of the communication apparatus 1. The CPU 15a of the control unit 15 operates in the normal mode when the power is on, and stops operating in the sleep mode when the power is off. Further, the CPU 15a has a voice determination input port for inputting a signal from the voice input determination circuit 15e and a power supply monitoring port for monitoring a power-on state, and a signal from the voice input determination circuit 15e is provided in the voice determination input port. Is detected and the sleep state is canceled to switch to the normal mode, and when the power supply voltage is applied to the power monitoring port, the sleep state is canceled to switch to the normal mode. Yes. Even when the CPU 15a is in the sleep mode, the microphone 11 and the voice input determination circuit 15e operate. Here, it is assumed that registration between devices has already been completed between the communication device 1 and the navigation device 2 by pairing.

  The communication apparatus 1 periodically performs the operation shown in FIG. First, it is determined whether there is a voice input through the microphone 11 (S100). In the present embodiment, it is determined whether or not there is an input of sound when the door of the vehicle is closed as the sound input unique to the vehicle. Actually, it is determined whether or not there is a sound input when the door of the vehicle is closed based on whether or not a low level signal is input from the sound input determination circuit 15e to the sound determination input port of the CPU 15a. If a low level signal is input to the voice determination input port of the CPU 15a, the process proceeds to S104. If a high level signal is input to the voice determination input port of the CPU 15a, the process proceeds to S102.

  For example, when the vehicle door is closed and a high level signal is input from the output terminal of the comparator 152 of the audio input determination circuit 15e to the audio determination input port of the CPU 15a due to the closing sound of the vehicle door, the determination in S100 is made. Next, the CPU 15a temporarily cancels the sleep state and stores 1 in the Bluetooth bit BT (S102). The initial value of the Bluetooth bit BT is 0 (off). Here, the mode is switched from the sleep mode to the normal mode, 1 is stored in the Bluetooth bit BT, and then the mode returns to the sleep mode.

  If there is no sound input when the door of the vehicle is closed and a low level signal is input from the output terminal of the comparator 152 of the sound input determination circuit 15e to the sound determination input port of the CPU 15a, the determination in S100 is NO. Thus, the process proceeds to S104 without proceeding to S102.

  In S104, it is determined whether or not the power is on (S104). Actually, it is determined whether or not the power supply is in an ON state based on whether or not a power supply voltage is applied to the power supply monitoring port. If the power supply voltage is not applied to the power supply monitoring port of the CPU 15a, the process returns to S100. If the power supply voltage is applied to the power supply monitoring port of the CPU 15a, the process proceeds to S106.

  Therefore, if the power is turned off with no sound input when the vehicle door is closed, the determination in S100 is NO, the determination in S104 is YES, and the process returns to S100. In this case, the CPU 15a remains in the slope state.

  Further, when the power is turned on in response to a user operation with no sound input when the vehicle door is closed, the determination in S100 is NO, the determination in S104 is YES, and the CPU 15a temporarily enters the sleep mode. Switching to the normal mode, it is determined whether or not the Bluetooth bit BT is on (S106). In this case, since the Bluetooth bit BT is 0 (off), the determination in S106 is NO and normal activation is performed (S108). Specifically, the CPU 15a performs a normal operation while continuing the normal mode. In addition, the process for starting near field communication is not implemented.

  For example, when the user performs an operation of playing a song stored in the memory while the mouth of a puppet-type musical instrument that is the communication device 1 is packed, this song is output as audio from the built-in speaker 13 of the communication device 1. Thus, the puppet-type musical instrument operates stand-alone without cooperation with the navigation device 2 via short-range wireless communication.

  Further, when the communication device 1 whose power is turned off is brought into the vehicle and the door of the vehicle is closed, the output of the comparator 152 of the audio input determination circuit 15e is generated by a sound when the door of the vehicle is closed. Since a high level signal is output from the terminal, the determination in S100 is YES, and the Bluetooth bit BT is stored as 1 in S102. When the power is turned on in response to a user operation, the determination in S104 is YES, and since the Bluetooth bit BT is stored in 1, the determination in S106 is YES, and then Bluetooth communication is started after activation. The process for this is implemented (S110). Specifically, the CPU 15 a executes a process for starting short-range wireless communication with the navigation device 2 via the Bluetooth communication unit 14. When this process is completed, short-range wireless communication between the communication device 1 and the navigation device 2 is started.

  In this state, for example, when the user performs an operation of playing the music stored in the memory while making the mouth of the puppet-type musical instrument which is the communication device 1, this music is output as audio from the built-in speaker 13 of the communication device 1. The At the same time, the sound data of the music corresponding to the A2DP profile is sent to the navigation device 2 via the Bluetooth communication unit 14, and the same sound as the sound from the built-in speaker 13 is also sent from the vehicle speaker 3 connected to the navigation device 2. Is output.

  When a command for outputting a specific sound is received from the navigation device 2 via the Bluetooth communication unit 14, sound based on the command is output from the speaker 13 (S112). For example, when a command corresponding to the AVRCP profile for outputting a sound such as “When you get on the car, fasten the seat belt” is received from the navigation device 2 via the Bluetooth communication unit 14. When you get on, let's fasten the seat belt. "Is output from the speaker 13 and the process is terminated.

  According to the configuration described above, it is determined whether there is a vehicle-specific sound input via the microphone 11, and if it is determined that there is a vehicle-specific sound input, the vehicle is mounted on the vehicle via the Bluetooth communication unit 14. Since the process for starting the short-range wireless communication with the navigation device 2 is executed, the short-range wireless communication with the in-vehicle device is not required without requiring an operation for instructing the start of the short-range wireless communication with the in-vehicle device. Can start.

  In addition, the specific in-vehicle device previously mounted in the vehicle is registered as a counterpart device to communicate via the Bluetooth communication unit 14 by the pairing operation, and the specific in-vehicle device specified according to the pairing operation And processing for starting short-range wireless communication can be executed.

  If it is determined that a vehicle-specific sound signal has been input, information indicating that a vehicle-specific sound input has been stored is stored in the storage medium, and whether the power is on is determined and stored. Information indicating that a sound input peculiar to the vehicle has been stored in the medium, and when it is determined that the power supply is on, to start short-range wireless communication with a specific in-vehicle device By executing the process, for example, even when there is a sound input peculiar to the vehicle through the microphone 11 before the power is turned on, the short-range wireless communication with the in-vehicle device is performed after the power is turned on. Communication can be started.

(Second Embodiment)
The configuration of the communication apparatus according to the second embodiment of the present invention is the same as the configuration shown in FIG. However, in the first embodiment, the pass band of the band pass filter 151 is configured to pass the frequency component of the sound when the door of the vehicle is closed and block components other than this frequency component. On the other hand, the present embodiment is different in that it is configured to pass the frequency component of the engine sound of the vehicle and block components other than this frequency component. That is, in the present embodiment, when the engine sound of the vehicle is collected by the microphone 11, a high level signal is input from the comparator 152 to the CPU 15 a, and the sound having a frequency component different from that of the engine sound of the vehicle by the microphone 11. Is collected, the low level signal is input from the comparator 152 to the CPU 15a.

  In this embodiment, it is determined whether or not there is an input of a vehicle engine sound as a sound input peculiar to the vehicle. If it is determined that a sound signal peculiar to the vehicle is input, navigation is performed via the Bluetooth communication unit 14. Processing for starting short-range wireless communication with the device 2 is executed. Hereinafter, the same parts as those in the first embodiment will be denoted by the same reference numerals, description thereof will be omitted, and different points will be mainly described.

  FIG. 4 shows an operation flow of the communication apparatus according to the present embodiment. The communication apparatus periodically performs the operation shown in FIG.

  First, it is determined whether or not the power is on (S104). Here, when the power is turned on, it is next determined whether or not there is a voice input (S100). In the present embodiment, it is determined whether there is an input of a vehicle engine sound as a sound input unique to the vehicle. Specifically, it is determined whether or not a high level signal is input from the audio input determination circuit 15e.

  Here, when the engine sound of the vehicle is not input and a low level signal is input from the sound input determination circuit 15e, the determination in S100 is NO and the CPU 15a is normally activated (S108). Therefore, the puppet-type musical instrument operates stand-alone without cooperation with the navigation device 2 via short-range wireless communication.

  If there is an input of vehicle engine sound and a high level signal is input from the voice input determination circuit 15e, the determination in S100 is YES, and the CPU 15a performs processing for starting Bluetooth communication after activation. (S110). Specifically, processing for starting short-range wireless communication with the navigation device 2 via the Bluetooth communication unit 14 is executed. When this process is completed, short-range wireless communication between the communication device 1 and the navigation device 2 is started, and the communication device 1 and the navigation device 2 perform an operation in cooperation with each other via the short-range wireless communication.

  According to the configuration described above, it is determined whether or not the power is turned on, it is determined that the power is turned on, and it is determined that a vehicle-specific audio signal is input. It is also possible to execute processing for starting near field communication with the in-vehicle device.

  In addition, this invention is not limited to the said embodiment, Based on the meaning of this invention, it can implement with a various form.

  For example, in the first embodiment, it is determined whether or not there is an input of a sound when the vehicle door is closed as the vehicle-specific sound. However, as in the second embodiment, the vehicle-specific sound is It may be configured to determine whether there is an input of the engine sound, or may be configured to determine whether there is an input of road noise sound when the vehicle travels. Moreover, you may comprise for determining whether there exists any sound peculiar to vehicles other than the sound when a vehicle door closes, the engine sound of a vehicle, and the road noise sound when a vehicle drive | works.

  In the second embodiment, it is determined whether or not the vehicle engine sound is input as the vehicle-specific sound. However, as in the first embodiment, the vehicle door is closed as the vehicle-specific sound. It may be configured to determine whether or not there is an input of a sound at the time, or may be configured to determine whether or not there is an input of a road noise sound when the vehicle travels. Moreover, you may comprise for determining whether there exists any sound peculiar to vehicles other than the sound when a vehicle door closes, the engine sound of a vehicle, and the road noise sound when a vehicle drive | works.

  Moreover, in the said 1st, 2nd embodiment, although the structure which determines whether there exists an audio input peculiar to a vehicle using the audio | voice input circuit 12, it is not limited to such a structure, For example, an A / D circuit for analog / digital conversion of an audio signal input from the microphone 11 is provided, and it is determined whether or not there is an audio input specific to the vehicle based on the signal digitally converted by the A / D circuit. You may comprise as follows.

  In the first and second embodiments, Bluetooth communication is shown as an example of short-range wireless communication. However, for example, the short-range wireless communication can be applied to communication via a wireless LAN such as WiFi. In this case, for example, a specific in-vehicle device specified in advance as a vehicle is registered as an access point, and when it is determined that there is a sound input peculiar to the vehicle, it is registered as an access point via the short-range wireless communication unit. What is necessary is just to perform the process for starting near field communication with the specific vehicle equipment made.

  In the first embodiment, in S112, the message “Let's fasten the seat belt when riding on the car” is output from the speaker 13 in accordance with the command received via the Bluetooth communication unit 14. When a specific command is received from the navigation device 2, the sound corresponding to the command is output from the speaker 13, the performance of the music stored in the memory, the utterance of the recorded word, the scale of Doremi You may make it restrict | limit the audio | voice output from the speaker 13, such as a performance in a. For example, the navigation device 2 having a hands-free function receives an incoming call from the outside, and a specific command “Let's be quiet because a call is received” is transmitted from the navigation device 2, and this specific command is communicated. When the message is received via the Bluetooth communication unit 14 of the device 1, the message “Let me be quiet because I received a call” is output from the speaker 13 according to the received command, and the music stored in the memory is stored. You may make it prohibit sound output, such as a performance, or make volume low. When a specific command is received from the navigation device 2, the speaker 13 utters voices such as “I will arrive at my destination soon” and “Sit properly because the curve continues from now on”. You may make it output from.

  Further, in the first embodiment, after the process for starting the short-range wireless communication with the navigation device 1 is completed, in S112, according to the command received via the Bluetooth communication unit 14, “if you get on the car, the seat The message “Let's fasten the belt” is output from the speaker 13. For example, after the process for starting the short-distance wireless communication with the navigation device 1 is completed, the navigation device 1 is informed via the Bluetooth communication unit 14. A voice signal for outputting a message intended for a user of a vehicle registered in advance (for example, “When you get on the car, fasten your seat belt.”) May be transmitted.

  In the first embodiment, in S110, after the process for starting the short-range wireless communication with the specific vehicle-mounted device is completed, the specific voice is output from the specific vehicle-mounted device via the Bluetooth communication unit 14. When a command for performing the command is received, the sound based on the command is output from the speaker 13. In the second embodiment as well, in S110, a short-range wireless communication with a specific in-vehicle device is started. A similar process may be performed after the process is completed.

  The correspondence relationship between the configuration in the above embodiment and the configuration of the claims will be described. S100 corresponds to sound input determination means, communication start processing means, S102 corresponds to storage control means, and S104. Corresponds to the power source determination means, and S112 corresponds to the sound output means.

DESCRIPTION OF SYMBOLS 1 Communication apparatus 10 Operation part 11 Microphone 13 Speaker 14 Bluetooth communication part 15 Control part 15a CPU
15b RAM
15c ROM
15e Audio input determination circuit 151 Band pass filter 152 Comparator

Claims (6)

A communication device including a microphone (11) and a short-range wireless communication unit (14) for short-range wireless communication,
Sound input determination means for determining whether there is a vehicle-specific sound input via the microphone;
If it is determined that there is a sound input peculiar to the vehicle, a communication start processing means for executing processing for starting short-range wireless communication with a specific in-vehicle device mounted on the vehicle via the short-range wireless communication unit And a communication device. A specific in-vehicle device mounted in advance in the vehicle is registered as a counterpart device that communicates via the short-range wireless communication unit (14),
The communication apparatus according to claim 1, wherein the communication start processing unit executes processing for starting short-range wireless communication with the registered specific in-vehicle device.   The sound input peculiar to the vehicle is at least one of an input of a closing sound of the door of the vehicle, an input of an engine sound of the vehicle, and an input of a road noise sound when the vehicle travels. Item 3. The communication device according to Item 1 or 2. When it is determined that there is a sound input peculiar to the vehicle, storage control means for storing information indicating that there is a sound input peculiar to the vehicle in a storage medium;
Power supply determination means for determining whether or not the power supply is on,
The communication start processing means stores information indicating that the sound input peculiar to the vehicle has been stored in the storage medium, and the power determination means determines that the power is on. 4. The communication apparatus according to claim 1, wherein a process for starting near field communication with the specific vehicle-mounted device is executed. Power supply determination means for determining whether or not the power supply is on,
The communication start processing means determines that the power supply determining means determines that the power supply is in an on state and determines that there is a sound input specific to the vehicle and the specific vehicle-mounted device and short-range wireless communication. 4. The communication apparatus according to claim 1, wherein a process for starting communication is executed. A speaker (13);
After completion of the process for starting short-range wireless communication with the specific vehicle-mounted device, when receiving a command for outputting a specific voice from the specific vehicle-mounted device via the short-range wireless communication unit, The communication apparatus according to claim 1, further comprising: audio output means for outputting sound based on the command from the speaker.

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