KR200314190Y1 - Broadcasting system of train - Google Patents

Abstract

The present invention supports RS485 or RS422 communication when checking the failures of various devices performed by the automatic broadcasting system of electric vehicles, and enables the output of the MPEG sound when the speaker sound is output, and the passenger and the crew or the passenger through the emergency interphone in the cabin. It provides a broadcasting system for trains that enables them to respond quickly to emergencies by allowing them to talk to the command room.

This invention is an automatic broadcast device; Central controller; Emergency interphone; A side controller for controlling in-vehicle, out-of-vehicle broadcast and guidance broadcast; An output amplifier for amplifying and outputting a voice signal broadcast by the control of the automatic broadcasting apparatus, the central controller and the side controller; In a broadcasting system of an electric vehicle having a train radio device, each device code is provided with an RS485 or RS422 communication module in the respective parts and the RS485 or RS422 communication through the RS485 or RS422 communication module is used to check the failure of each part of the system in the automatic broadcasting device. And it is possible to transmit and receive the necessary information, the automatic broadcasting device is equipped with an MPEG playback unit to output the MPEG sound when the speaker sound output, the central controller is an emergency interphone recognition / release button provided in the central controller during unmanned operation If the predetermined time is not input, the command call mode is automatically switched.

Description

BROADCASTING SYSTEM OF TRAIN}

The present invention relates to a broadcasting system of an electric vehicle, and in particular, it supports RS485 or RS422 communication when checking a malfunction of various devices, enables the output of MPEG sound when the speaker sound is output, and the passengers and crew members through the emergency interphone in the cabin. In addition, by allowing passengers to talk with the general command room, they can quickly respond to emergencies and automatically adjust the output level of the announcement according to the noise level in the cabin. The present invention relates to a broadcasting system of an electric vehicle.

In a conventional electric vehicle, emergency call setting is made manually between a crew member and a passenger, a general command room and a passenger.

Therefore, the emergency call could not be made if the crew did not receive the call with the crew.

In addition, in recent years, unmanned operation of electric vehicles has been attempted, even if there is no crew member, it is necessary to immediately deliver a message to the passengers in the cabin or the passengers in the cabin directly to the general command room. It is impossible if you do not set before train operation.

In addition, in order to properly show the announcement in the cabin, the output level must be properly adjusted according to the noise level in the cabin, but in the current electric vehicle, such a function may not be implemented, and passengers may not hear the announcement properly.

In addition, the current fault check between devices in the electric vehicle uses the DTMF (Dual Tone Multi Frequency) method, which is only to determine the failure of the device according to the configuration of the current loop of the peripheral device in the automatic broadcasting device As a result, even better sound quality is required in speaker sound output.

The present invention has been made in view of the above, and the present invention provides an electric vehicle broadcasting system that can quickly respond to an emergency situation by allowing the passenger and the crew or the call of the passenger and the general command center to be automatically selected through the emergency interphone in the cabin. The purpose is to provide.

Another object of the present invention is to provide a broadcast system of an electric vehicle that enables the announcement to be better delivered to the passenger by allowing the output level of the announcement to be automatically adjusted according to the noise level in the cabin.

Another object of the present invention is to provide better communication reliability and to determine the status of each device by using RS485 or RS422 communication method, and to output speaker sound through MPEG playback method. It is to provide a broadcasting system of a train for enabling sound quality speaker sound output.

1 is a block diagram of a broadcasting system for an electric vehicle according to the present invention;

2 is an external configuration diagram of the automatic broadcasting apparatus of FIG. 1.

3 is an external configuration diagram of the central controller of FIG.

4 is a configuration diagram of the side controller of FIG.

5 is a detailed configuration diagram of the MPEG playback unit in the present invention.

6 is a block diagram of the emergency intercom of FIG.

7 is a detailed configuration diagram of the output amplifier of FIG. 1.

<Description of the symbols for the main parts of the drawings>

10: automatic broadcasting device 20: central controller

30a, 30b: Side controller 40: Output amplifier

50: emergency intercom 60a, 60b, 60c: in-car, out-of-speaker

70: monitor speaker 80: train radio device

90: MPEG playback unit

The broadcast system of the electric vehicle according to the present invention for achieving the above object, the automatic broadcast device for performing the publicity guidance and arrival broadcast of the train in communication with the TCMS, and performs a fault check of each part of the system; A central controller supporting calls between passengers and crews, crews and crews, passengers and general command room; An emergency interphone for notifying the central controller of an emergency situation in the cabin; A side controller for controlling in-vehicle, out-of-vehicle broadcast, and guide broadcast; A broadcasting system for an electric vehicle, comprising: an output amplifier for amplifying and outputting a voice signal broadcast by the control of the automatic broadcasting apparatus, the central controller, and the side controller; and a train radio apparatus for supporting wireless communication with the general command room It is provided with an RS485 or RS422 communication module to transmit and receive each device code and necessary information by RS485 or RS422 communication through the RS485 or RS422 communication module when checking the failure of each part of the system in the automatic broadcasting device, the MPEG playback unit in the automatic broadcasting device When the speaker sound is outputted, the output of the MPEG sound is possible, and the central controller automatically switches to the command call mode if the emergency interphone recognition / release button provided in the central controller is not input for a predetermined time during unmanned operation. Characterized in that the call to the command room.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a block diagram illustrating a broadcasting system of an electric vehicle according to the present invention.

As shown therein, the automatic broadcasting apparatus 10, the central controller 20, the side controllers 30a and 30b, the output amplifier 40, the emergency interphone 50, the in-vehicle and the external speakers 60a, 60b and 60c. , The monitor speaker 70, the train radio device (80).

The automatic broadcasting apparatus 10 stores the promotional information, the arrival broadcasting, etc. of the train in a memory card, receives data for broadcasting from a TCMS (Train Control Monitoring System), and calculates the distance value when the train leaves in advance. If the program coincides with the broadcast time, the broadcaster can perform the broadcast manually and automatically.

Figure 2 shows the external appearance of the automatic broadcasting apparatus 10, ① is a rack (rack) for fixing the automatic broadcasting apparatus 10, ② is a bolt for fixing the front panel, the panel is opened when loosened, the panel Open each module of the automatic broadcast device 10 can be separated.

③ is a volume for adjusting the volume of the automatic broadcasting device 10, ④ is an LCD display which is a display indicating the operation state of the automatic broadcasting device 10, ⑤ can operate each function of the automatic broadcasting device 10. Is the key.

This automatic broadcasting device 10 has an automatic broadcasting and a manual broadcasting function.

When the power is first turned on, the automatic broadcasting device 10 is set to the automatic mode.

In automatic mode, everything is done automatically in parallel with TCMS and door open signals without the crew's manipulation.

In the case of manual broadcasting, the mode is operated by the crew's manual operation. By pressing the mode key, the manual is displayed on the LCD. Press the increase / decrease key to select the station name to broadcast and press the broadcast key to broadcast.

Another function of the automatic broadcasting device 10 is a check function, which checks each device constituting the system and transmits the same to the TCMS 10. When the check key is pressed, an abnormality is displayed on the LCD.

Here, the inspection of each device, the automatic broadcast device 10 and each peripheral device (20-50, 80) connected in parallel (2 Pair Shield Wire: RS485), the controller of the automatic broadcast device 10 is When the peripheral device (20-50,80) code and necessary information are transmitted through RS485 communication, each peripheral device (20-50,80) has its own code (8) predetermined by the controller of each device (20-50,80). Bit, if necessary, can be extended through protocol definition), and loads its code through RS485 communication with status information. Through this, the automatic broadcasting device 10 checks whether the peripheral devices 20-50 and 80 are normally operated. Judge the state.

To this end, the automatic broadcasting device 10 and each of the peripheral devices 20-50 and 80 are provided with an RS485 communication module (RS422 communication module during RS422 communication).

On the other hand, in the conventional electric vehicle, the DTMF method was used for fault detection, which is to connect the automatic broadcasting apparatus and each peripheral in parallel, generate the DTMF in the automatic broadcasting apparatus, and the peripheral apparatus has its own code (4 bits). By recognizing this, the current loop was configured as a contact point on the DTMF communication line, and the automatic broadcasting system judged whether the device failed or not according to the configuration of the current loop.

Therefore, the RS485 method is capable of transmitting and receiving codes and other information of the device, and thus, there is an advantage that the state can be determined as well as whether the normal operation of each device is compared with the DTMF method.

The central controller 20 having an external appearance as shown in Figure 3 is the cabin broadcast of the crew, off-board broadcasting, the call to the emergency intercom 50, the passenger air in the command room through the train radio device 80 and Allow crew to make interphone calls.

First, cabin broadcasting or off-vehicle broadcasting is used when a crew member wants to make a micro upbringing broadcast to a passenger, and after adjusting the microphone volume appropriately, broadcasting is carried out while pushing the in-vehicle, left and right out-of-vehicle call switch, which is an output amplifier 40 Through the in-vehicle speaker (60a), the left and right outside of the speaker (60b, 60c) is output, and at the end of the broadcast release the switch push.

When the crew wants to talk with each other, the volume of the microphone and the monitor speaker 70 is properly adjusted, and then the cab call switch is pressed to make a call. At this time, the monitor speaker 70 of the other party hears a voice.

Next, if you want to make an emergency interphone call, that is, when an emergency occurs in the cabin and the passenger presses the emergency interphone 50, the emergency interphone recognition / release button of the central controller 20 blinks, and the crew responds to the emergency interphone response. Press the button to speak with the passenger, and when the call is over, press the emergency interphone recognition / release button to end the emergency.

During unmanned operation, if the emergency interphone recognition / release button for recognizing and releasing the emergency situation is not pressed in the central controller 20, the control unit automatically switches to the command call mode and the passengers and the general command room. Make a call available.

The side controllers 30a and 30b as shown in FIG. 4 are devices that the crew can broadcast from the door of the vehicle and are installed at the left and right sides of the door. In-vehicle, out-of-vehicle broadcast is possible, and can be guided broadcast in connection with the automatic broadcasting device (10).

First, the in-vehicle broadcast is used when the crew wants to broadcast to the passengers in the cabin, and after adjusting the microphone volume controller appropriately, holding the hand microphone 31 and pressing the hook switch of the hand microphone 31, the off-vehicle cabin switch To switch to the room and broadcast, and the hook switch returns to the end. In the case of off-vehicle broadcasting, the hand microphone 31 is held and the hook switch of the hand microphone 31 is pushed and broadcasted without manipulation of the off-vehicle room broadcasting switch.

The announcement broadcast is used when the operator wants to output the announcement broadcast stored in the automatic broadcasting device 10 by manual key operation of a crew member when the train stops or departs.

The output amplifier 40 is installed in each vehicle and receives a signal from the central controller 20 and amplifies it and delivers the signal to the speakers 60a, 60b, and 60c.

On the other hand, the present invention is to enable the output of the MPEG sound when the speaker output, for this purpose, the automatic broadcast device 10 is provided with an MPEG playback unit 90 for MPEG playback.

As shown in FIG. 5, the MPEG playback unit 90 transmits the shared information read from the memory 93 to the main CPU of the automatic broadcasting apparatus 10 by the MPEG module CPU 91 at the time of initialization. Information is shared with the main CPU of the device 10, and information and control information read from the memory 93 in accordance with the main CPU command of the automatic broadcasting device 10 is transferred to the MPEG decoder / DAC (Digital to Analog Converter) 92. Controls playback and stop of MPEG. Here, the output of the MPEG playback unit 90 is shown to go to the output amplifier 40 in FIG. 5, but in fact, the output of the MPEG playback unit 90 is the central controller 20. Via the output amplifier 40 via.

The emergency interphone 50 is used to make a call with the crew in the event of an emergency of the passenger, and is installed in each vehicle, and the passenger can talk with the crew under the control of the central controller 20 by pressing the emergency button. Like 6, call button, speaker, microphone are composed.

The monitor speaker 70 may hear passenger voices in a room broadcast or a call with a crew member or an emergency interphone response, and may monitor the output of the automatic broadcasting device 10.

In addition to the above function, the present invention can automatically adjust the speaker sound output according to the room noise.

That is, by using the in-car speaker 60a of each train, the noise in each room is normally sensed, and the output amplifier 40 collects and judges this information, and automatically adjusts the output to an optimal volume preset for each room. .

7 shows a detailed configuration diagram of the output amplifier 40. When the CPU 41 of the output amplifier controls the switching of the switching unit 45 to connect the speaker 60a to the noise detection unit 42, the speaker 60a operates as a noise sensing microphone to transmit ambient noise to the noise detecting unit 42, and thus the noise detecting unit 42 transmits this information to the CPU 41 of the output amplifier. In (41), the noise level of the room is determined.

In case of broadcasting from the central controller 20, the CPU 41 of the output amplifier controls the switching of the switching unit 45 to connect the speaker 60a with the output amplifier 44 to collect the interior of the room. The volume control unit 43 controls the volume output based on the noise information.

The speaker 60a is capable of performing the original speaker function and the noise detection function. Since the speaker is already known, the detailed description thereof is weak, and whether the speaker 60a will function as the speaker or the noise detection function. Whether to perform a function depends on the control of the central controller 20.

In addition, the present invention can determine the failure of the in-vehicle, out-of-vehicle speakers (60a, 60b, 60c) of each vehicle.

That is, the speaker line control configuration of FIG. 7 is configured to be controlled separately for each speaker, that is, the switching unit connected to the CPU 41, the noise detector 42, and the output amplifier 44 in FIG. 7. 45) is configured for each speaker, and when checking for faults, only one speaker to be inspected is outputted through switching of the switching unit 45 connected to each speaker to reproduce the input sound source, and the remaining speakers detect noise. If the sound is detected by detecting the output of the speaker under test for a predetermined time, the speaker is determined to be good. If there is no sound detected for a predetermined time, the speaker is determined to be a failure, and the CPU 41 of the output amplifier 40 ) Inputs the failure of the speaker to the auto-broadcaster 10 so that the presence or absence of a failure is displayed on the LCD of the auto-broadcaster 10.

The present invention is not limited to the embodiments described above, and various modifications and changes can be made by those skilled in the art, which are included in the spirit and scope of the present invention as defined in the appended claims.

As described above, the electric vehicle broadcasting system according to the present invention has the following effects.

First, in case of emergency in the cabin, passengers and crew members or passengers can call the general command room, so that they can respond quickly in case of various emergency situations and automatically adjust and output the speaker output level according to the noise level in the cabin. Passengers will be able to listen to announcements such as the delivery of various announcements as well as to determine the presence or absence of speaker failures.

Second, since RS485 or RS422 methods are used for communication between devices when checking the failure of devices, it is possible to transmit and receive codes and other information of devices, and thus there is an advantage of determining whether each device is normally operated or not.

Third, it is possible to output a better sound quality when outputting large passengers through the automatic playback device through the MPEG playback module.

Claims (4)

An automatic broadcasting device that performs publicity guidance and arrival broadcasting of the train by communication with the TCMS, and performs a fault check of each part of the system and displays it; A central controller supporting calls between passengers and crews, crews and crews, passengers and general command room; An emergency interphone for notifying the central controller of an emergency situation in the cabin; A side controller for controlling in-vehicle, out-of-vehicle broadcast, and guide broadcast; In the broadcast system of an electric vehicle comprising a power amplifier for amplifying and outputting a voice signal broadcast by the control of the automatic broadcasting device, the central controller and the side controller, and a train radio device for supporting wireless communication with the general command room, Each unit is provided with an RS485 or RS422 communication module to transmit / receive each device code and necessary information by RS485 or RS422 communication through the RS485 or RS422 communication module when checking the failure of each part of the system in the automatic broadcasting apparatus. Broadcasting system. An automatic broadcasting device that performs publicity guidance and arrival broadcasting of the train by communication with the TCMS, and performs a fault check of each part of the system and displays it; A central controller supporting calls between passengers and crews, crews and crews, passengers and general command room; An emergency interphone for notifying the central controller of an emergency situation in the cabin; A side controller for controlling in-vehicle, out-of-vehicle broadcast, and guide broadcast; In the broadcasting system of an electric vehicle having an output amplifier for amplifying and outputting a voice signal broadcast by the control of the automatic broadcasting apparatus, the central controller and the side controller, and a train radio apparatus for supporting wireless communication with the general command room, An electric vehicle equipped with an MPEG playback unit in the automatic broadcasting device to output an MPEG sound through the MPEG playback unit when a speaker sound is output, thereby outputting a better sound quality when outputting a large passenger broadcast through the automatic broadcasting device. Broadcasting system. An automatic broadcasting device that performs publicity guidance and arrival broadcasting of the train by communication with the TCMS, and performs a fault check of each part of the system and displays it; A central controller supporting calls between passengers and crews, crews and crews, passengers and general command room; An emergency interphone for notifying the central controller of an emergency situation in the cabin; A side controller for controlling in-vehicle, out-of-vehicle broadcast, and guide broadcast; In the broadcast system of an electric vehicle comprising a power amplifier for amplifying and outputting a voice signal broadcast by the control of the automatic broadcasting device, the central controller and the side controller, and a train radio device for supporting wireless communication with the general command room, The central controller automatically switches to the command call mode when the emergency interphone recognition / release button for recognizing and releasing the emergency situation provided to the central controller is not input for a predetermined time during unmanned operation, so as to talk with the passenger and the general command room. Electric vehicle broadcasting system. An automatic broadcasting device that performs publicity guidance and arrival broadcasting of the train by communication with the TCMS, and performs a fault check of each part of the system and displays it; A central controller supporting calls between passengers and crews, crews and crews, passengers and general command room; An emergency interphone for notifying the central controller of an emergency situation in the cabin; A side controller for controlling in-vehicle, out-of-vehicle broadcast, and guide broadcast; In the broadcast system of an electric vehicle comprising a power amplifier for amplifying and outputting a voice signal broadcast by the control of the automatic broadcasting device, the central controller and the side controller, and a train radio device for supporting wireless communication with the general command room, In-vehicle and out-of-vehicle speaker line control configurations connected to the output amplifier are configured for each speaker, and only one speaker to be inspected is outputted, and the input sound source is reproduced, and the remaining speakers are in a noise sensing state, and the CPU of the output amplifier is And detecting the output of the speaker under test for a predetermined time and displaying the failure of the speaker in the automatic broadcasting apparatus based on this.