JP6576455B2 - Train noise control device - Google Patents

Description

  The present invention relates to an in-train noise control device capable of controlling the operation of a device that causes noise in a train car and suppressing or stopping noise from the device.

  In a train, the operation sound of devices represented by fans is not only unpleasant because it is noise, but it also contributes to the failure of passengers to obtain useful information from audio broadcasts. Conventionally, measures have been taken against such operation sounds.

  Patent Document 1 that is a conventional technique states that, even when the surrounding sound volume is high, if the sound is useful sound, the number of rotations of the cooling fan is reduced to reduce noise caused by the cooling fan. The sound collection unit collects surrounding sounds, the sound source of the sound is identified by the sound source identification unit, the volume is recognized by the volume recognition unit, and the surrounding sound is based on these sound sources and the volume. Is large and noisy, the processing speed of the information processing unit is prioritized and the number of rotations of the cooling fan is increased. If the surrounding sound is loud and useful, the processing of the information processing unit A technique for reducing the speed of the cooling fan while suppressing the speed is disclosed.

JP 2009-230620 A

  However, according to the conventional technique, a sound collecting unit that collects ambient sounds and a sound source identifying unit that identifies sound sources of the surrounding sounds are required. Therefore, there was a problem that the cost increased.

  The present invention has been made in view of the above, and an object of the present invention is to obtain an in-train noise control device that can be realized with a simple configuration with reduced costs.

In order to solve the above-described problems and achieve the object, the present invention provides a device that generates an operation sound or a device group including a plurality of devices, and vehicle information that acquires vehicle information and controls the device or the device group. An in-train noise control device that is provided in a vehicle including a management device and controls noise in the vehicle, the control unit receiving state information of the vehicle information and the device or the device group, and the device or An audio broadcast start information indicating that an audio broadcast is to be started , the control command generation unit transmitting and generating an operation suppression command signal or a suppression release command signal to each device of the device group If there is the audio broadcast start information, the vehicle information and the state information should be used to suppress the operation of each device of the device or the device group, or Should be released Determining comprises setting execution processing determination unit that transmits the determination result to the suppression command generating unit.

  According to the present invention, there is an effect that an in-train noise control device that can be realized with a simple configuration with reduced costs can be obtained.

The figure which shows the structure of a vehicle provided with the noise control apparatus in a train concerning embodiment. The flowchart explaining operation | movement of the noise control apparatus in a train concerning embodiment. In embodiment, the figure which shows the suppression command signal, the suppression cancellation command signal, and the operation state of an apparatus. The figure which shows an example of the setting data table memorize | stored in the noise control apparatus in a train concerning embodiment The figure which shows an example of the setting data table at the time of the cooling of the air conditioner memorize | stored in the noise control apparatus in a train concerning embodiment The figure which shows an example of the general structure of the hardware which implement | achieves a vehicle information management apparatus and the noise control apparatus in a train

  Hereinafter, an in-train noise control apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment.
FIG. 1 is a diagram illustrating a configuration of a vehicle including an in-train noise control apparatus according to an embodiment of the present invention. A vehicle 10 shown in FIG. 1 includes a vehicle information management device 11, a speed generator 12, a vehicle upper arm 13, a train noise control device 20, a device group 30, a vehicle information providing device 40, and an in-car broadcast device. 41.

  The vehicle information management device 11 acquires vehicle information of the vehicle 10 and controls the device group 30 via the in-train noise control device 20. Here, the vehicle information includes kilometer information, audio broadcast timing information, and in-car broadcast information. Moreover, the current position information of the vehicle 10 may be included. The audio broadcast timing information includes information on the time when the audio broadcast starts or the start point of the audio information. The in-car broadcast information includes the contents of the in-car broadcast and the in-car broadcast time. The speed generator 12 is attached to the wheel axle of the vehicle 10, detects the rotation of the wheel, and transmits a pulse signal to the vehicle information management device 11. This pulse signal includes speed information and is used to calculate kilometer. The vehicle upper element 13 transmits and receives information to and from the ground element 14 provided on the track of the vehicle 10. Here, the vehicle upper element 13 acquires the current absolute position information of the vehicle 10 from the ground information received from the ground element 14.

  The in-train noise control device 20 includes a signal reception unit 21, a control unit 22, a suppression command generation unit 23, and a device signal reception unit 24.

  The signal receiving unit 21 receives a signal from the vehicle information management device 11 and transmits information on this signal to the control unit 22.

  The control unit 22 includes a monitor information reception unit 221, a device state information collection unit 222, and a setting content execution process determination unit 223. The control unit 22 refers to the information included in the signal received from the signal receiving unit 21 and the information included in the signal received from the device signal receiving unit 24, and determines whether to suppress the operation of the device group 30. The determination result is transmitted to the suppression command generation unit 23. Here, the procedure by which the control unit 22 determines whether or not to suppress the operation of each device in the device group 30 will be described later with reference to FIG.

  When receiving a determination result from the control unit 22 that the operation of each device in the device group 30 should be suppressed, the suppression command generation unit 23 generates a suppression command signal for each device in the device group 30 to generate the device group. 30. The suppression command generation unit 23 generates a suppression release command signal and transmits it to the device group 30 when a determination result indicating that the suppression of the operation of each device in the device group 30 is to be released is received from the control unit 22. . Here, the suppression command generator 23 typically transmits the suppression command with the destination by unicast transmission.

  The device signal receiving unit 24 receives signals from each device in the device group 30 and transmits information on the signals to the control unit 22.

  The monitor information receiving unit 221 receives the vehicle information and transmits it to the setting content execution process determination unit 223. The device status information collection unit 222 receives the status information of the device group 30 and transmits it to the setting content execution process determination unit 223. Using the vehicle information received from the monitor information receiving unit 221 and the status information received from the device status information collecting unit 222, the setting content execution process determination unit 223 should suppress the operation of the device group 30 or cancel the suppression operation. This determination result is transmitted to the suppression command generation unit 23.

Note that the signal receiver 21 and the device signal receiver 24 may be the same receiver. Moreover, when the control part 22 can receive the signal from the vehicle information management apparatus 11, the signal receiving part 21 does not need to be provided. Moreover, when the control part 22 can receive the signal from the equipment group 30, the equipment signal receiving part 24 does not need to be provided, and the noise control apparatus 20 in the train includes at least the control part 22 and the suppression command. generation unit 2 3 may be provided. Similarly, the control unit 22 may not include the monitor information receiving unit 221 and the device state information collecting unit 222, and the control unit 22 may include at least the setting content execution process determination unit 223. That's fine.

  The device group 30 is a plurality of devices, and includes at least a device 30a, a device 30b, and a device 30i as shown in FIG. In addition, it may replace with the apparatus group 30 and only the apparatus 30a which is one apparatus may be provided. The device 30a, the device 30b, and the device 30i are not limited to specific devices as long as they generate an operation sound and become a noise source. The devices 30a, 30b, and 30i include a fan, an air conditioner, and the like. An air compressor can be illustrated. An air compressor is also called a compressor. An air compressor mounted on a train is used for operation of an air brake used when the train stops and opening / closing of a passenger door.

  The vehicle information providing device 40 generates audio data for in-vehicle broadcast from the vehicle information transmitted by the vehicle information management device 11 and transmits the audio data to the in-vehicle broadcast device 41. The in-car broadcast device 41 performs in-car sound broadcasting using the sound data transmitted from the vehicle information providing device 40. Here, the vehicle information provided to the passengers by audio broadcasting can exemplify the name of the next station, the direction of the door opened at the next station, the time until arrival, and the operation information.

  FIG. 2 is a flowchart for explaining the operation of the in-train noise control apparatus according to the embodiment of the present invention. When the operation is started as shown in FIG. 2, the setting content execution process determination unit 223 first determines whether there is audio broadcast start information (S11). Here, the audio broadcast start information is information indicating that the audio broadcast is started at the present time. The vehicle information management device 11 transmits the audio broadcast start information to the vehicle information providing device 40 and also transmits to the in-train noise control device 20. Then, the signal receiving unit 21 of the train noise control device 20 that has received the audio broadcast start information transmits the audio broadcast start information to the monitor information receiving unit 221, and the monitor information receiving unit 221 receives the audio broadcast start information. This is transmitted to the setting content execution process determination unit 223. When there is no audio broadcast start information (S11: No), the setting content execution process determination unit 223 performs the determination of S11 again. That is, the setting content execution process determination unit 223 repeats the determination in S11 until the audio broadcast start information is received.

  When there is audio broadcast start information (S11: Yes), the setting content execution process determination unit 223 determines whether or not each device in the device group 30 can be controlled to be suppressed (S12). That is, in the determination of S12, can the setting content execution process determination unit 223 be able to suppress the operation of each device in the device group 30 before suppressing the generation of noise due to the operation of each device in the device group 30? Judge whether or not. That is, the state information of each device of the device group 30 received by the device signal receiving unit 24 and stored in the device state information collecting unit 222, and each device of the device group 30 stored in advance in the setting content execution process determination unit 223. It is determined whether or not each device in the device group 30 can be controlled by comparing with setting data including setting value information. When suppressing the cooling operation of the air conditioner, the setting content execution process determination unit 223 compares the in-vehicle temperature included in the state information with the preset in-vehicle upper limit temperature included in the set value information. The operation of the air conditioner can be suppressed when the vehicle interior temperature is lower than the preset vehicle interior upper limit temperature, and when the vehicle interior temperature is equal to or higher than the vehicle interior upper limit temperature, air conditioning is performed. It is assumed that the operation of the device cannot be suppressed. If the suppression control is not possible (S12: No), the flow ends.

  When the suppression control is possible (S12: Yes), the suppression command generation unit 23 generates a suppression command signal and transmits the suppression command signal to the device group 30 (S13), and determines whether the audio broadcast is finished (S14). ). If the audio broadcast has not ended (S14: No), the setting content execution process determination unit 223 performs the determination in S14 again. That is, the setting content execution process determination unit 223 repeats the determination in S14 until the audio broadcast ends. If the audio broadcast has ended (S14: Yes), the suppression command generator 23 generates a suppression cancellation command signal and transmits it to the device group 30 (S15), and the flow ends.

  FIG. 3 is a diagram illustrating a suppression command signal, a suppression release command signal, and an operation state of the device. As shown in FIG. 3, when branching to Yes in S <b> 11, that is, when there is audio broadcast start information, the in-train noise control device 20 suppresses the operation of each device of the device group 30 with respect to the device group 30. A suppression command signal for starting is generated and transmitted. And the apparatus group 30 which received the suppression command signal operate | moves in a suppression state. Then, when branching to Yes in S14, that is, when the audio broadcast is finished, the in-train noise control device 20 generates a suppression release command signal for canceling the suppression operation of each device in the device group 30. Transmit to the device group 30.

  FIG. 4 is a diagram illustrating an example of a setting data table stored in the train noise control device 20. The setting data table shown in FIG. 4 includes usage status, output, and output level upper limit settings of air conditioners, fans, brakes, electric motors, inverters, and broadcasting devices corresponding to the devices included in the device group 30. The output-on air conditioner operates at a1 [W], and its output level upper limit setting is b1 [W]. The fan whose output is on operates at a2 [W], and its output level upper limit setting is b2 [W]. The output-on brake operates at a3 [W], and its output level upper limit setting is b3 [W]. The output-on motor operates at a4 [V], and its output level upper limit setting is b4 [V]. The output-on inverter operates at a5 [V], and its output level upper limit setting is b5 [V]. The broadcasting device whose output is on operates at a6 [V], and its output level upper limit setting is b6 [V]. In addition, you may fix an important apparatus, such as a brake, an electric motor, and an inverter, when operating a train safely so that a suppression state is impossible. Note that the broadcasting device is turned on until it ends after the start of audio.

  Among the devices shown in FIG. 4, since the air conditioner and the fan can be suppressed, the noise control device 20 in the train determines that the air conditioner and the fan can be controlled, and the brake, the electric motor, the inverter, and the broadcasting device are determined. Determines that the suppression control is impossible, transmits a suppression command signal to the air conditioner and the fan at the start of the audio broadcast, and transmits a suppression release command signal to the air conditioner and the fan at the end of the audio broadcast.

  FIG. 5 is a diagram illustrating an example of a cooling setting data table of the air conditioner stored in the train noise control device 20. Here, in the example shown in FIG. In the setting data table of the air conditioner shown in FIG. 5, the in-vehicle temperature of each vehicle from the first car to the fourth car and the upper limit temperature in the vehicle of each vehicle from the first car to the fourth car are shown. In car Nos. 1, 3 and 4, the in-vehicle upper limit temperature is 28 ° C., the current in-vehicle temperature is 26 ° C., and in No. 2 car, the in-vehicle upper limit temperature is 29 ° C., and the current in-vehicle temperature is 27 ° C. is there.

  In FIG. 5, since the in-vehicle temperature of each vehicle is lower than the in-vehicle upper limit temperature of each vehicle, the cooling operation of the air conditioner of each vehicle is performed until the in-vehicle temperature of each vehicle reaches the in-vehicle upper limit temperature of each vehicle. It is possible to suppress the operation of the air conditioner. Here, if the in-vehicle temperature of the first car is 30 ° C., the in-vehicle temperature is equal to or higher than the upper in-vehicle temperature, and therefore it is determined that the cooling operation of the air conditioner of the first car cannot be suppressed, and the suppression command signal Is not generated.

  As described above, the in-train noise control device 20 according to the present embodiment also performs the operation of the device when the operation of the device should be given priority over the suppression of the operation sound even for the device that generates the operation sound. Can be prioritized.

  According to the present embodiment described above, the in-train noise control device 20 can be realized with a simple configuration. Specifically, since the sound collecting unit that collects ambient sounds and the sound source identifying unit that identifies the sound sources of the surrounding sounds, which are required in the prior art, are unnecessary, the size can be reduced and the cost can be reduced. In addition, since it can be realized with a simple configuration, power consumption can be suppressed.

  In the embodiment described above, the vehicle information management device 11 and the train noise control device 20 include at least a processor, a memory, a receiver, and a transmitter, and the operation of each device is realized by software. can do. FIG. 6 is a diagram illustrating an example of a general configuration of hardware for realizing the vehicle information management device 11 and the train noise control device 20. The apparatus shown in FIG. 6 includes a processor 51, a memory 52, a receiver 53, and a transmitter 54. The processor 51 performs calculation and control by software using the received data, and the memory 52 receives the received data or the processor 51. Stores data and software necessary for performing computation and control. The receiver 53 included in the vehicle information management apparatus 11 receives vehicle information of the vehicle 10 including information transmitted from the speed generator 12 and the vehicle upper arm 13. The transmitter 54 included in the vehicle information management device 11 transmits information to the in-train noise control device 20. In addition, the receiver 53 included in the in-train noise control device 20 corresponds to the signal receiving unit 21 and the device signal receiving unit 24. The transmitter 54 included in the in-train noise control device 20 corresponds to the suppression command generation unit 23. A plurality of processors 51, memories 52, receivers 53, and transmitters 54 may be provided.

  In the above description, the in-train noise control device 20 grasps the start and end times of the sound based on the preset audio broadcast timing information, but the present invention is not limited to this. The suppression command signal may be transmitted to the device group 30 not at a preset audio broadcast timing but also during an extraordinary audio broadcast. At this time, the timing when the broadcast start button is pressed at the time of extraordinary audio broadcasting is set as the audio start time.

  In addition, in said description, the case where the suppression command production | generation part 23 transmits the suppression command which attached | subjected the destination by unicast transmission, ie, the case where the suppression command is transmitted for every apparatus contained in the apparatus group 30, is illustrated. Although described, the present invention is not limited to this. The configuration may be such that the suppression command generation unit 23 performs broadcast transmission that transmits a suppression command to the entire device group 30.

  In addition, in FIG. 3, the suppression command signal which is a start signal is transmitted at the time of the suppression start of operation | movement of the device group 30, and the suppression cancellation command signal which is a cancellation | release signal is transmitted at the time of completion | finish of suppression of the operation of the device group 30 is demonstrated. However, the present invention is not limited to this. The in-train noise control device 20 starts transmitting a suppression command signal to the device group 30 at the start of operation suppression, continues to transmit a suppression command signal when the device group 30 is in a suppression state, and when the operation suppression is released, the device group 30 may be configured to stop the transmission of the suppression command signal.

  In the above description, the in-train noise control device 20 transmits a suppression command to each device in the device group 30, but the present invention is not limited to this, and instead of the suppression command. The stop command may be transmitted.

  In the above description, only the vehicle 10 is shown in FIG. 1, but the present invention is not limited to this, and the number of vehicles may be plural.

  The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

  DESCRIPTION OF SYMBOLS 10 Vehicle, 11 Vehicle information management apparatus, 12 Speed generator, 13 Car upper part, 14 Ground element, 20 In-train noise control apparatus, 21 Signal receiving part, 22 Control part, 221 Monitor information receiving part, 222 Equipment state information collection Unit, 223 setting content execution process determination unit, 23 suppression command generation unit, 24 device signal reception unit, 30 device group, 30a, 30b, 30i device, 40 vehicle information providing device, 41 in-car broadcast device, 51 processor, 52 memory, 53 receivers, 54 transmitters.

Claims (4)

Provided in a vehicle including a device that generates an operation sound or a device group including a plurality of devices and a vehicle information management device that acquires vehicle information and controls the device or the device group, and controls noise in the vehicle A train noise control device,
A control unit that receives the vehicle information and the state information of the device or the device group;
A suppression command generation unit that generates and transmits an operation suppression command signal or a suppression release command signal for each device of the device or the device group,
The controller is
It is determined whether there is audio broadcast start information indicating that audio broadcast is to be started, and when there is audio broadcast start information, the vehicle information and the state information are used to An in-train noise control apparatus comprising: a setting content execution process determination unit that determines whether the operation of each device should be suppressed or canceled, and transmits the determination result to the suppression command generation unit. The setting content execution process determination unit
Should the operation of the device or the device group be suppressed by comparing the state information of the device or the device group with the set value information of each device of the device or the device group stored in advance? The in-train noise control device according to claim 1, wherein it is determined whether or not to cancel. The suppression command generation unit generates the suppression command signal and transmits the generated suppression command signal to each device of the device or the device group, and when the setting content execution processing determination unit determines that the audio broadcasting has ended. The in-train noise control device according to claim 1, wherein the suppression cancellation command signal is generated and transmitted to each device of the device or the device group.   The setting content execution processing determination unit determines that the operation of each device of the device or the device group should be suppressed when the start of the temporary audio broadcast is accepted,
The said suppression command production | generation part transmits the said suppression command signal with respect to each apparatus of the said apparatus or the said apparatus group from the determination result of the said setting content execution process determination part. The in-train noise control device according to any one of the above.

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