JP2018134977A - Communication system for crew - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication system for crews which enables the crew to communicate with each other during watching the state of a platform.SOLUTION: A communication system for crews comprises first audio input units (handsets 1) that are used when crews communicate with each other through a communication channel 2, a second audio input unit (microphone 3) that is used when the broadcasting in each vehicle is held through a broadcast channel 5, first broadcast units (control amplifiers 4) that not only output audio signal inputted from the second audio input unit into the broadcast channel 5 but also output the audio signal inputted from the broadcast channel 5 into crew rooms, second broadcast units (output amplifiers 6) that output the audio signal inputted from the broadcast channel 5 from audio output units (loudspeakers 7) installed in each vehicle and an output control unit (communication switch 8) that constrains the audio outputs from the audio output unit.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a crew member communication system.

Conventionally, in a railway vehicle, a crew member communication system that realizes communication between a conductor and a driver (crew member communication) is known (see, for example, Patent Document 1).
In the conventional crew member communication system, when the crew member C3 to the driver C4 communicate with the crew member, the handset 201 installed in the vicinity of the mascon table installed in the driver's cab of each crew member room (driver's cab) is used to send and receive calls. Perform (see FIG. 5).

JP 2014-8800 A

  By the way, as shown in FIG. 6, the mascon table 202 and the handset 201 are installed at positions away from the drop window 203 for confirming the status of the platform of the station. Therefore, when the conductor needs to talk to the driver while checking the status of the platform through the drop window 203 (for example, emergency stop when entering the home, stopping position correction when entering the home, etc.), the handset 201 is in the hands of the conductor. Because it is installed at a position where the phone does not reach, there is a problem that it is impossible to talk with the driver. As shown in FIG. 6, a microphone 204 is installed in the vicinity of the drop window 203. This microphone 204 is used for a purpose other than crew communication such as vehicle broadcast (car broadcast). As such, it did not provide a way to talk to the driver.

  An object of the present invention is to provide a crew member communication system capable of performing crew member communication while confirming the state of a home.

In order to achieve the above object, the present invention provides:
In the crew communication system,
A first voice input unit that is installed in each crew room and is used to communicate between crew members via a communication line;
A second voice input unit that is installed in the vicinity of the drop window of each of the crew cabins and is used when performing vehicle broadcasting via a broadcast line different from the communication line;
A control amplifier that outputs the audio signal input from the second audio input unit to the broadcast line and outputs the audio signal input from the broadcast line into the crew cabin;
A broadcasting device for outputting a voice signal input from the broadcasting line from a voice output unit provided for each vehicle;
An output control unit for limiting audio output from the audio output unit;
It comprised so that it might be equipped with.

  According to the crew member communication system configured as described above, the conductor can communicate with the driver using the second voice input unit installed near the window. Therefore, the conductor can talk with the driver while checking the status of the home.

Here, preferably,
The output control unit is a switch for manually limiting the audio output from the audio output unit.
According to such a configuration, it is possible to select which of the vehicle broadcast and the crew member communication is used by a simple operation in which the crew member switches the switch. Therefore, for example, even if the handset as the first voice input unit breaks down and the crew member cannot be contacted, the crew member's judgment can be dealt with immediately. Can be done.

Also, preferably
The output control unit performs control so as not to perform audio output from the audio output unit.
According to such a configuration, it is possible to completely stop the output to the inside and outside of each vehicle other than the crew cabin when contacting the crew. Therefore, the crew member can be communicated without letting the passenger hear the crew member.

Furthermore, preferably
When the output control unit restricts the sound output from the sound output unit, the volume setting of the control amplifier is invalidated, and the sound signal input from the broadcast line is output to the crew cabin at a constant volume. To control.
According to such a configuration, it is possible to output sound at a volume that can be heard by the crew on the receiving side (driver) regardless of the volume setting of the control amplifier. Therefore, even if the volume setting of the control amplifier is set to “0”, it is possible to reliably transmit the details of the crew member communication to the reception side crew member (driver).

  According to the present invention, it is possible to contact a crew member while confirming the status of the home.

It is a block diagram which shows schematic structure of the crew member communication system which concerns on embodiment of this invention. It is a figure which shows an example of the flow of an audio | voice when a crew member uses a microphone normally (when a contact switch is OFF). It is a figure which shows an example of the flow of an audio | voice when a crew member uses the microphone 3 by setting the contact switch 8 to ON. It is a figure which shows an example of a crew member communication notionally. It is a figure which shows notionally an example of the conventional crew member communication. It is a figure which shows an example of the arrangement configuration of the apparatus in the conventional crew cabin.

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

As shown in FIG. 1, a crew member communication system 100 according to an embodiment of the present invention includes a handset 1, a communication line 2, a microphone 3, a control amplifier 4, a broadcast line 5, an output amplifier 6, and a speaker. 7 and a communication switch 8. In the present embodiment, each configuration described above is configured on an eleven-car train. As shown in FIG. 1, the railway car has a cab 1 and a car 11.
In this embodiment, the arrangement of the mascon table (not shown), the handset 1, the drop window (not shown), and the microphone 3 is the same as that of the conventional example (see FIG. 6), and thus the description thereof is omitted.

The handset (first voice input unit) 1 is installed in each driver's cab of the first and last vehicles of the railway vehicle, and is used when a crew member communicates between the conductor and the driver. The handset 1 converts an analog audio signal input by a crew member into a digital audio signal and outputs the digital audio signal to the communication line 2.
The communication line 2 is a digital transmission path for transmitting a digital signal. The communication line 2 outputs the digital audio signal input from the handset 1 to the other handset 1.
The other handset 1 converts a digital audio signal input from the communication line 2 into an analog audio signal and outputs it from a built-in speaker.
In addition, since the handset 1 is installed at a position away from the falling window, it is impossible for the conductor to make a call with the driver using the handset 1 while confirming the state of the home with the falling window.

The microphone (second audio input unit) 3 is installed in each driver's cab of the first and last vehicles of the railroad car as in the case of the handset 1, and the crew is used for vehicle broadcasting (in-car broadcasting) such as passenger guidance / passenger guidance and crew members. Used when making contact. Since the microphone 3 is installed in the vicinity of the drop window, the crew can use it while checking the state of the home.
The control amplifier (first broadcast device) 4 is connected to the broadcast line 5. The control amplifier 4 controls audio data obtained by digitally converting an analog audio signal input from the microphone 3 and output from speakers 7 (in-vehicle speakers 71 and out-of-vehicle speakers 72) provided inside and outside each vehicle. An audio packet including speaker control information is output to the broadcast line 5.

  The broadcast line 5 is a digital transmission path for transmitting voice packets. The broadcast line 5 outputs the voice packet input from the control amplifier 4 to the other control amplifier 4 and the output amplifier 6 provided in each vehicle.

  The other control amplifier 4 converts the digital audio data contained in the audio packet input from the broadcast line 5 into an analog audio signal and outputs it from the built-in monitor speaker 41. Each control amplifier 4 is provided with a volume setting function for adjusting the volume.

  The output amplifier (second broadcasting device) 6 is installed in each vehicle of the railway vehicle. The output amplifier 6 controls the output from the in-vehicle speaker 71 and the out-of-vehicle speaker 72 provided for each vehicle based on the speaker control information included in the audio packet input from the broadcast line 5. Specifically, the output amplifier 6 converts digital audio data included in an audio packet input from the broadcast line 5 into an analog audio signal, and outputs the analog audio signal to the speaker 7 set to ON in the speaker control information. . For example, the output amplifier 6 outputs an analog audio signal to the in-vehicle speaker 71 when the in-vehicle speaker 71 is set to ON and the out-of-vehicle speaker 72 is set to OFF. For example, the output amplifier 6 does not output an analog audio signal to any of the speakers 7 when both the in-vehicle speaker 71 and the out-of-vehicle speaker 72 are set to OFF.

The speaker (sound output unit) 7 includes an in-vehicle speaker 71 provided inside each vehicle and an out-of-vehicle speaker 72 provided outside each vehicle.
The in-vehicle speaker 71 outputs the analog audio signal input from the output amplifier 6 into each vehicle.
The outside speaker 72 outputs the analog audio signal input from the output amplifier 6 to the outside of each vehicle.

The contact switch (output control unit) 8 is installed in the vicinity of the microphone 3. The contact switch 8 is a switch for switching the purpose of use of the microphone 3 from the vehicle broadcast to the crew member communication by restricting the sound output from the speaker 7 provided for each vehicle. The contact switch 8 is normally turned off.
In FIG. 1 to FIG. 3, the description of the microphone 3 and the communication switch 8 on the receiver side (driver side) is omitted for convenience of explanation.

First, referring to FIG. 2, an example of a voice flow when the crew member normally uses the microphone 3 (when the communication switch 8 is OFF) is shown.
When the microphone 3 is used when the crew member (crew) C1 turns off the contact switch 8, the control amplifier 4 transmits a voice packet including speaker control information for setting the in-vehicle speaker 71 to ON and the outside speaker 72 to OFF. The signal is output to the other control amplifier 4 and the output amplifier 6 provided in each vehicle via the broadcast line 5.

  The other control amplifier 4 converts the digital audio data contained in the audio packet input from the broadcast line 5 into an analog audio signal and outputs it from the built-in monitor speaker 41 regardless of the content of the speaker control information.

The output amplifier 6 controls the output from the in-vehicle speaker 71 and the out-of-vehicle speaker 72 based on the speaker control information included in the audio packet input from the broadcast line 5. In the example shown in FIG. 2, the in-vehicle speaker 71 is set to ON and the outside speaker 72 is set to OFF in the speaker control information. Therefore, the output amplifier 6 converts the digital audio data included in the audio packet input from the broadcast line 5 into an analog audio signal, and outputs the analog audio signal from the in-vehicle speaker 71 set to ON in the speaker control information.
As described above, the crew can provide vehicle broadcasting.

Next, referring to FIG. 3, an example of a voice flow when the crew member uses the microphone 3 with the contact switch 8 turned on is shown.
The control amplifier 4 broadcasts an audio packet including speaker control information for setting both the in-vehicle speaker 71 and the out-of-vehicle speaker 72 to OFF when the crew member (conductor) C1 uses the microphone 3 with the contact switch 8 turned on. It outputs to the other control amplifier 4 and the output amplifier 6 provided in each vehicle via the line 5.

The other control amplifier 4 converts the digital audio data contained in the audio packet input from the broadcast line 5 into an analog audio signal and outputs it from the built-in monitor speaker 41 regardless of the content of the speaker control information.
Here, when the volume setting of the control amplifier 4 on the other side (receiving side) is set to “0”, even if an analog audio signal is output from the monitor speaker 41, the crew (driver) cannot notice. . Therefore, in this embodiment, when the contact switch 8 is turned on, the volume setting of the control amplifier 4 on the other side (the receiving side) is invalidated, and the audio signal input from the broadcast line 5 is kept constant in the crew cabin. Control is performed so that the sound is output at the volume.

The output amplifier 6 controls the output from the in-vehicle speaker 71 and the out-of-vehicle speaker 72 based on the speaker control information included in the audio packet input from the broadcast line 5. In the example shown in FIG. 3, in-speaker speaker 71 and out-of-vehicle speaker 72 are both set to OFF in the speaker control information. Therefore, the output amplifier 6 does not output the digital audio data included in the audio packet input from the broadcast line 5 from the in-vehicle speaker 71 and the out-of-vehicle speaker 72.
As a result, the crew can communicate with the crew.

FIG. 4 conceptually shows an example of crew member communication.
When the crew member (crew) C1 uses the microphone 3 with the contact switch 8 turned on and speaks "I'm checking the situation now", the crew member (driver) C2 has a monitor speaker 41 built in the control amplifier 4. Will hear the voice message “Now confirming status”.
On the other hand, the crew member (driver) C2 responds to the above voice communication by using the handset 1 to reply “I will contact the command”, and the crew member (conductor) C1 from the speaker built in the other handset 1 You will hear the response “I will contact you”.
By the above method, communication between the conductor and the driver can be realized.

As described above, in the crew member communication system 100 according to the embodiment of the present invention, the first voice input unit (handset 1) used when the crew members communicate with each other via the communication line 2, and the crew room A second audio input unit (microphone 3) that is installed in the vicinity of the falling window and is used when vehicle broadcasting is performed via the broadcast line 5, and an audio signal input from the second audio input unit is output to the broadcast line 5. In addition, the first broadcasting device (control amplifier 4) that outputs the audio signal input from the broadcast line 5 to the crew cabin, and the audio output unit provided for each vehicle that receives the audio signal input from the broadcast line 5 By providing a second broadcasting device (output amplifier 6) for outputting sound from the (speaker 7) and an output control unit (contact switch 8) for restricting sound output from the sound output unit, the conductor is in the vicinity of the falling window. Setting Is a microphone 3 can be carried out crew contact with the operator's using.
Therefore, the conductor can talk with the driver while checking the status of the home.

  In particular, in the crew member communication system 100 according to the embodiment of the present invention, since the output control unit is a switch (contact switch 8) that manually restricts voice output from the voice output unit, the crew member simply switches the switch. With this operation, it is possible to select whether to use vehicle broadcasting or crew contact. Therefore, for example, even when the handset 1 is in a state where the crew member cannot be contacted due to a failure or the like, it is possible to immediately respond to the crew member's judgment, so that the crew member can be more reliably communicated.

  Moreover, in the crew member communication system 100 according to the embodiment of the present invention, the output control unit controls the voice output unit not to perform the voice output, so that the inside and outside of each vehicle other than the crew room at the time of crew member communication The output to can be stopped completely. Therefore, the crew member can be communicated without letting the passenger hear the crew member.

  Further, in the crew member communication system 100 according to the embodiment of the present invention, when the output control unit limits the audio output from the audio output unit, the volume setting of the control amplifier 4 is invalidated and input from the broadcast line 5. By controlling the voice signal to be output at a constant volume in the cabin, the voice can be output at a volume that can be heard by the crew on the receiving side (driver) regardless of the volume setting of the control amplifier 4. . Therefore, even if the volume setting of the control amplifier 4 is set to “0”, it is possible to reliably transmit the contents of the crew member communication to the reception side crew member (driver).

  As mentioned above, although concretely demonstrated based on embodiment which concerns on this invention, this invention is not limited to the said embodiment, It can change in the range which does not deviate from the summary.

For example, in the above-described embodiment, a digital transmission path for transmitting a digital signal is exemplified as the communication line 2, but the present invention is not limited to this. In other words, an analog transmission path for transmitting an analog signal may be used instead of the digital transmission path. In this case, the control amplifier 4 does not need to perform digital conversion of the audio signal.
Similarly, in the above-described embodiment, a digital transmission path for transmitting voice packets is described as an example of the broadcast line 5, but the present invention is not limited to this. In other words, an analog transmission path for transmitting an analog signal may be used instead of the digital transmission path. Similarly in this case, the control amplifier 4 does not need to perform digital conversion of the audio signal.

  Moreover, in the said embodiment, although the contact switch 8 is turned ON manually, the audio | voice output from the speaker 7 is restrict | limited, However, It is not limited to this. For example, when the drop window is in an open state, it may be assumed that a crew member contact is made while checking the status of the home, and the audio output from the speaker 7 may be automatically limited. In addition, when the crew room door is in an open state, it is assumed that the crew member contact is made while confirming the state of the home, and the audio output from the speaker 7 is automatically limited. Good.

  Moreover, in the said embodiment, although it controls so that the audio | voice output from the speaker 7 (in-vehicle speaker 71) may not be performed by turning ON the contact switch 8, it is not limited to this. For example, instead of performing control so as not to output sound from the in-vehicle speaker 71, the volume setting of the in-vehicle speaker 71 may be set to a volume (eg, “0”) that is not audible to the passenger.

  In addition, the detailed configuration of each device constituting the crew member communication system and the detailed operation of each device can be changed as appropriate without departing from the spirit of the present invention.

100 Crew member communication system 1 Handset (first voice input unit)
2 Communication line 3 Microphone (second voice input unit)
4 Control amplifier (first broadcasting device)
41 Monitor speaker 5 Broadcast line 6 Output amplifier (second broadcast device)
7 Speaker (Audio output unit)
71 Speaker inside car 72 Speaker outside car 8 Contact switch (Output control part; Switch)
C1 Crew (conductor)
C2 Crew (driver)

Claims (4)

A first voice input unit that is installed in each crew room and is used to communicate between crew members via a communication line;
A second voice input unit that is installed in the vicinity of the drop window of each of the crew cabins and is used when performing vehicle broadcasting via a broadcast line different from the communication line;
A first broadcasting device that outputs an audio signal input from the second audio input unit to the broadcast line and outputs an audio signal input from the broadcast line into the crew cabin;
A second broadcast device that outputs a sound signal input from the broadcast line from a sound output unit provided for each vehicle;
An output control unit for limiting audio output from the audio output unit;
A crew member communication system characterized by comprising:   2. The crew member communication system according to claim 1, wherein the output control unit is a switch that manually restricts audio output from the audio output unit. 3.   The crew member communication system according to claim 1 or 2, wherein the output control unit performs control so as not to perform audio output from the audio output unit.   The output control unit invalidates the volume setting of the first broadcasting device when the audio output from the audio output unit is restricted, and the audio signal input from the broadcast line is audio at a constant volume in the crew cabin. It controls so that it may output, The crew member communication system as described in any one of Claims 1-3 characterized by the above-mentioned.

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