KR101895433B1 - Method and system for emergency broadcasting based on LTE-R - Google Patents

Abstract

The present invention relates to an LTE-R-based room emergency broadcasting method and system. The room emergency broadcasting method based on the LTE-R includes a process of receiving location information of a train entering the main line from an emergency broadcasting control server, a process of providing a train emergency broadcasting device for a train through an LTE- A process of checking whether the power source of the vehicle is cut off by the emergency Emergency Broadcasting System, and a case where power is disconnected from the vehicle. And providing a room emergency broadcast. According to the present invention, it is possible to provide a room emergency broadcasting in an emergency situation such as a separation of a railway vehicle, a train broadcasting device failure, a failure of a vehicle mobile station, or a power supply failure state in an LTE-R based system.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and system for emergency evacuation based on LTE-R,

The present invention relates to an LTE-R-based room emergency broadcasting method and system, and more particularly, to an LTE-R-based room emergency broadcasting method and system capable of providing an emergency broadcasting function as a room of a railway vehicle in an emergency situation .

Generally, a railway vehicle refers to a power car, a coach, a car, and a special car manufactured for the purpose of operating on a railway line. Railway vehicles are very complex structures that combine many electric devices and mechanical devices. It is important to secure stable lines for mass transportation and maintenance costs are higher than initial construction costs because they have a long life cycle .

Currently, railway radio communication technology applied to communication with domestic railway vehicles uses a 150 MHz band VHF (Very High Frequency) network for voice communications and an 800 MHz band TRS (Frequency Shared Communication) network for voice and data communications, Different routes are used differently. For this reason, there is a problem that the efficiency of operation and maintenance of the train is poor. In addition, there is a inherent limitation in the current railway communication technology that can not satisfy the service requirement which is increasingly high because the transmission of the high speed data is impossible.

Accordingly, an LTE-R (LTE-Railway) system is being developed to unify existing railway radio communication methods to increase the efficiency of operation and maintenance, and to realize various convergence services through high-speed data transmission. The LTE-R system is a railway-specific technology that utilizes LTE (Long Term Evolution) technology to transmit high-speed and large-capacity wireless data. Research and development for the commercialization of LTE-R integrated wireless network, ie LTE-R, is being carried out globally, and it is possible to provide voice and image services using LTE-R system, The train control data may be transmitted.

On the other hand, in an emergency situation such as separation of a railway vehicle, failure of a train broadcasting device, failure of a train mobile station device, or inability to supply power to a passenger in a passenger room of a railway vehicle, In addition, when such an emergency situation occurs, it is impossible to grasp the room situation at the control station, and the passenger can not communicate with the control station, and the necessary measures for the emergency situation can not be quickly performed.

Therefore, in the newly developed LTE-R system, it is necessary to consider the possibility of emergency broadcasting in a room even in an emergency situation.

Accordingly, it is an object of the present invention to provide a room emergency broadcasting method based on LTE-R, which enables an emergency broadcasting to a room in an emergency situation such as separation of a railway vehicle, failure of a train broadcasting device, failure of a vehicle mobile station device, And a system.

In order to accomplish the above object, there is provided an emergency room broadcasting method based on LTE-R according to the present invention, receiving location information of a train entering a main line from an emergency broadcasting control server, The method comprising the steps of: delivering train finishing information to an emergency broadcasting apparatus for the train; checking whether the power source of the vehicle is shut off in the emergency broadcasting apparatus for the vehicle; and, Receiving emergency power from the battery, and operating the emergency broadcasting operating mode to provide emergency room broadcasting.

The emergency Emergency Broadcasting System may further include providing an emergency interphone service for the passenger in the emergency broadcasting operating mode.

In addition, the car emergency broadcasting apparatus may further include a step of operating the room emergency lighting in the emergency broadcasting operating mode.

The emergency Emergency Broadcasting System may further include a step of transmitting an image captured by operating an emergency camera in a room to the control panel in the emergency broadcasting operating mode.

In accordance with another aspect of the present invention, there is provided an emergency room broadcasting system based on an LTE-R, the system comprising: an emergency broadcast receiving unit for receiving location information of a train entering a main line and transmitting train entry information through an LTE- The control server receives information on the entrance to the train terminal and checks whether the power source of the vehicle is shut off. If it is determined that the power source is cut off, , And a car emergency broadcasting apparatus that provides a room emergency broadcasting.

According to the present invention, it is possible to provide a room emergency broadcasting function in an emergency situation such as a separation of a railway vehicle, a train broadcasting device failure, a failure of a vehicle mobile station device, or a power supply failure state in an LTE-R based system. Accordingly, it is possible to respond quickly and correctly when an emergency occurs, so that it is possible to prevent an accident from occurring in an emergency situation and improve the stability.

1 is a diagram illustrating an example of an LTE-R based system to which a room emergency broadcasting method according to the present invention is applied,
FIG. 2 is a block diagram of an emergency broadcasting control server in FIG.
FIG. 3 is a block diagram of a secondary emergency broadcasting apparatus in FIG. 1, and FIG.
FIGS. 4 to 8 are views referencing a description of a method of evicting a room based on LTE-R according to the present invention.

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

FIG. 1 shows an example of a LTE-R based system to which a room emergency broadcasting method according to the present invention is applied.

1, a general control station, which is a ground system, includes a call server 110, a push-to-talk server 120, a command server 130, 140, a control operation panel 150, an emergency broadcast control server 160, and the like.

The call server 110 supports Voice over IP (VoIP) or Voice over LTE (VoLTE) voice calls. The call server 110 can support a high-quality voice call even when the train is moving at a high speed.

The PTT server 120 supports a Push to Talk group call function and an SMS message transmission function in a common train wireless communication system.

The command server 130 provides functions such as user data management, equipment data management, user group management, user equipment status monitoring, call record management, passenger broadcast interface, and emergency interface for passengers. The command server 130 may be configured to operate in a hot-standby mode. When operating in the hot-standby mode, one of the two command servers 130 operates as an active server and the other server operates as a standby server. If the current server fails, the standby server automatically takes over the role of the current server. The dynamic information managed by the active server is automatically transferred to the standby server, so that the data managed by the server can be maintained consistently.

The main controller 140 controls the overall operation of the general control station by controlling the operation of the servers and various devices disposed in the general control station.

The control panel 150 provides a function for administrators to manage and control trains, stations, mobile terminals, and the like, and to operate voice and data services. For this purpose, various GUIs and screens can be provided have.

The emergency broadcasting control server 160 provides a function of managing the first to nth-th emergency commercial broadcasting apparatuses 300a to 300n.

The LTE-R network 50 is a network conforming to the 3GPP LTE (Long Term Evolution) standard, and transmits and receives voice, data, and image data in a packet exchange manner. The LTE-R network 50 uses Orthogonal Frequency Division Multiple Access (OFDMA) as a downlink, Single Carrier Frequency Division Multiple Access (SC-FDMA) as an uplink, Quadrature Phase Shift Keying (QPSK) (16 Quadrature Amplitude Modulation) and 64QAM.

The base station / repeater device 200 connects the LTE-R network 50 with the onboard device 300 installed in the train for wireless communication service.

The first to nth-th commercial emergency broadcasting apparatuses 300a to 300n are installed for each room of the railway vehicle, and provide emergency room-related broadcasting and related functions in an emergency situation.

Although not shown in the figure, a portable terminal (not shown) capable of communicating through an LTE-R network 50, such as an engineer or a station employee, may have a VolP or VoLTE voice call function, a video PTT function, Multimedia group communication function, SMS and MMS function.

The LTE-R system with this structure is a next generation wireless communication system based on LTE. It is a next-generation wireless communication system based on LTE, and it can be used for voice services, video conferencing, CCTV, A data service including a video service including a car attendant monitoring, a control signal, and a large-capacity file transmission, and the like.

2 is a block diagram of the emergency broadcast control server in FIG.

2, the emergency broadcast control server 160 includes an on-board interface processor 161, a train position processor 163, a control panel interface 165, an emergency broadcast controller 167, 169), and the like. When such components are implemented in practical applications, two or more components may be combined into one component, or one component may be divided into two or more components as necessary.

The vehicle interface processor 161 may provide a function for interfacing with an on-vehicle device installed in a train, and may transmit and receive data to and from the vehicle emergency broadcasting device 300.

The train position processing unit 163 receives the position information of the train from the ground server and transmits the position information to the control server main control unit 169 and determines whether the train is entering the main line or the like.

The control console interface unit 165 provides a function of transmitting information on whether or not a train has entered the main line and information about the emergency emergency broadcast apparatus 300 or the like to the control panel 150, And transmits the information on the request for the intercom system control command to the control panel 150.

The emergency broadcasting apparatus management unit 167 provides functions related to the management of the emergency broadcasting apparatus 300 for the secondary use.

The control server main control unit 169 generally controls the functions of the respective units to control the overall operation of the emergency broadcast control server 160.

FIG. 3 is a block diagram of a mobile emergency broadcast apparatus in FIG.

3, the mobile emergency broadcasting apparatus 300 includes an LTE-R modem unit 310, a ground interface processing unit 315, an image transmission processing unit 320, an emergency camera processing unit 325, an uninterruptible power supply control unit An emergency call processing unit 340, an emergency call processing unit 350, an emergency interphone interface unit 360, an emergency interphone voice call processing unit 370, an emergency lighting processing unit 380, and a broadcast apparatus main control unit 390, And the like. When such components are implemented in practical applications, two or more components may be combined into one component, or one component may be divided into two or more components as necessary.

R modem module 310 and an LTE-R modem function for communication via the LTE-R network 50. In the LTE-R network 50, at least one of a base station, an external terminal, Signals can be transmitted and received. Here, the wireless signal may include various types of data according to a voice call signal, a video call signal, or a text / multimedia message transmission / reception.

The terrestrial interface processor 315 may provide a function for interfacing with the terrestrial apparatus and may include a function of transmitting and receiving data to and from the emergency broadcasting control server 160 and a terrestrial voice call server interface for voice communication with the control console 150, Function and so on.

The image transmission processing unit 320 transmits the camera operation control signal to the emergency camera processing unit 325 and processes the image received from the emergency camera processing unit 325 to generate packet data that can be transmitted through the LTE- Conversion.

The emergency camera processing unit 325 controls the operation of the camera installed in each room and can transmit the image received from the camera to the image transmission processing unit 320. [

The uninterruptible power supply unit control unit 330 receives the position information of the train from the ground device and provides a function of controlling whether or not to use the emergency broadcasting apparatus power supply unit according to whether the ship enters the main line or not. The emergency emergency broadcast apparatus 300 is operated in a power off mode. When the vehicle is powered off from the main entrance vehicle, the emergency emergency broadcast apparatus 300 receives operating power from a battery disposed on the train, And the like.

The emergency voice call processing unit 340 provides a SIP-based voice processing function for performing emergency broadcasting and can provide an interface function with the terrestrial PTT server 130 for a PTT group call.

The emergency broadcast processing unit 350 provides a function of processing an emergency broadcast voice inputted through the emergency voice call processing unit 370 so that the emergency broadcast is allowed to be transmitted through a room speaker to a request for an emergency broadcast on the ground .

The emergency interphone voice call processing unit 360 provides an SIP-based voice processing function for performing the emergency interphone communication function between the emergency interphone device installed in each room and the ground control command, and forms a private communication path between the passenger and the control unit And may function as an interface with the terrestrial PTT server 120.

The emergency interphone interface unit 360 has a function of performing a call request to the emergency interphone voice call processing unit 370 with respect to an emergency intercom call request requested by the passenger through the emergency interphone apparatus and a function of performing a private call between the passenger and the control command When it is formed, it performs the function to connect the emergency interphone voice call processing unit and the passenger emergency interphone.

The emergency lighting processor 380 may be configured to operate the emergency lighting LED in the emergency mode in which the car using emergency broadcasting device 300 operates when the main entrance vehicle is powered off from the battery when the vehicle input power is cut off.

The broadcasting apparatus main control unit 390 controls the functions of the respective units and controls the overall operation of the emergency broadcasting apparatus 300 for the vehicle.

4 to 8 are diagrams referred to in explaining a room emergency broadcasting method according to the present invention.

Referring to FIG. 4, when an emergency situation occurs in the room emergency broadcasting method according to the present invention, a call (①) between the control operation panel and the emergency emergency broadcasting apparatus 300, an emergency portable broadcasting terminal 300, (2), and a communication between the portable terminal for the station staff and the emergency broadcasting apparatus 300 for the car.

In other words, it is possible to perform emergency broadcasting through a control command for handling emergency situations within the range of all routes, emergency room broadcasting through emergency emergency broadcasting apparatus 300 of the accident room of a corresponding engineer, Room emergency broadcasts are possible. Also, multi-path room emergency broadcasting using the LTE-R network 50 is also possible.

Referring to FIG. 5, the emergency broadcasting control server 160 receiving location information of trains entering the main line from the terrestrial server can transmit information on the arrival of the main line to the secondary emergency broadcasting apparatus 300 of the train.

The uninterruptible power supply control unit 330 monitors whether or not the vehicle is powered off, and when the input power supplied from the vehicle is cut off, the uninterruptible power supply control unit 330 receives the operating power from the battery and switches to the emergency broadcasting operating mode So that the room emergency broadcasting and emergency interphone device can be operated in the emergency operation mode.

In this way, the car emergency broadcasting apparatus 300 receives the location information of the train from the emergency broadcasting control server 160, and can switch to the emergency operation mode when the supply of the input power is interrupted in the main entrance vehicle.

Referring to FIG. 6, when an emergency occurs, the emergency interphone service of the emergency emergency broadcasting apparatus 300 can be provided for grasping the room condition and for communication between the passenger and the control command. When the passenger requests a call with the emergency interphone placed in the room. The emergency interphone voice call processing unit 370 requests the emergency call control server 160 to make a call. When the control command is accepted by the control operating unit 150, the communication route is formed between the passenger and the control commander, as shown in FIG. 6

When an emergency such as separation of a railway car occurs, it is possible to grasp the accident room situation and provide an emergency broadcasting for responding to an emergency situation.

Referring to FIG. 7, in order to minimize the anxiety of passengers in the situation that the lighting of the passenger compartment is not possible due to the power off of the passenger compartment, the emergency lighting service is provided for safe passenger response. The emergency broadcast main control unit 390 can control the emergency lighting processing unit 380 to increase the room emergency lighting when an emergency situation occurs.

In this way, emergency lighting can be controlled to safely evacuate passengers when the vehicle light is switched off due to an emergency situation.

Referring to FIG. 8, when an emergency situation such as separation of a railway vehicle occurs, the broadcasting apparatus main control unit 390 instructs the video transmission processing unit 320 to issue a camera operation command in response to a request from the emergency broadcasting control server 160 send. Accordingly, the image transmission processing unit 320 may transmit the camera operation signal to the emergency camera processing unit 325, process the image received from the emergency camera processing unit 325, and transmit the processed image to the emergency broadcasting control server 160 . Accordingly, it is possible to cope with the emergency situation of the guest room while viewing the guest room screen through the monitor of the control panel 150.

When an emergency situation such as separation of a railway car occurs, the image of the room situation is transmitted through the emergency camera, and the accurate situation of the accident room can be grasped to cope with the emergency situation effectively.

Meanwhile, the LTE-R-based room emergency broadcasting method and system according to the present invention are not limited to the configurations of the embodiments described above, but the embodiments described above can be applied to various implementations All or some of the examples may be selectively combined.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

110: Call server 120: PTT server
130: command server 140:
150: control operation panel 160: emergency broadcast control server
200: base station / repeater device 300: emergency broadcasting device for car

Claims (6)

Receiving location information of a train from an emergency broadcast control server;
Transmitting information on whether or not the train enters the main line to the emergency broadcasting apparatus of the train through the LTE-R network in the emergency broadcasting control server;
The commercial emergency broadcasting apparatus receives information on whether or not the train enters the main line,
In the case of the entry of the train into the main line, when it is judged that the vehicle input power is cut off, the operation power is supplied from the battery and operates in the emergency broadcasting operating mode,
Operating in a power off mode if the train is not in the main line; And
In the emergency broadcasting operating mode, the secondary emergency broadcasting apparatus performs at least one of a room emergency broadcasting, a communication with a control panel, a communication with the portable electronic device using the train, and a communication with a portable terminal for a station employee ; And an LTE-R-based room emergency broadcasting method. The method according to claim 1,
Further comprising the step of the emergency Emergency Broadcasting Device providing an Emergency Interphone Service for a passenger in the emergency broadcasting operating mode. The method according to claim 1,
Further comprising the step of operating the room emergency lighting in the emergency broadcasting operating mode by the secondary emergency broadcasting apparatus in the LTE-R. The method according to claim 1,
Further comprising the step of the emergency Emergency Broadcasting Device operating the emergency camera in the Emergency Broadcasting operation mode and transmitting the captured image to the ATC. An emergency broadcast control server for receiving location information of a train entering the main line and transmitting information on whether or not to enter the train main line through the LTE-R network; And
The information on whether or not the train enters the main line is received,
If it is determined that the vehicle input power is cut off in the case of entering the train on the main line, the operation power is supplied from the battery and operates in the emergency broadcasting operating mode,
And operates in a power off mode when the train is not in the main line,
And a car emergency broadcasting apparatus that performs at least one of a room emergency broadcasting, a communication with a control panel, a communication with the portable terminal of the train, and a communication with a portable terminal for a station employee in the emergency broadcasting operating mode LTE-R-based room emergency broadcasting system. 6. The method of claim 5,
The emergency Emergency Broadcasting apparatus may further execute at least one of an emergency interphone service for a passenger in a room, an operation of a room emergency light, and a transmission of an image captured by operating an emergency camera in a room in the emergency broadcasting operating mode LTE-R-based room emergency broadcasting system.

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