KR20180096327A - System for alarming train approach and method thereof - Google Patents

Abstract

The present invention discloses a method for alarming a train approach and a method thereof. That is, the present invention can enhance stability according to an operator-oriented alarm signal output by outputting an alarm signal even if a terminal receives only the Wi-Fi signal including a specific service set identifier (SSID) by outputting the alarm signal for alarming the entry of a train if the Wi-Fi signal radiated through a directional antenna included in the front side of the train is received in the terminal which an operator near a railway has.

Description

[0001] The present invention relates to a train access alarm system,

The present invention relates to a railway access alarm system and method, and more particularly, to a railway access alarm system and a railway access alarm system for alarming the entrance of a train, in particular, when a WiFi signal radiated through a directional antenna provided in front of a train is received by a terminal, The present invention relates to a railway access alarm system for outputting an alarm signal and a method thereof.

The railway line includes all the necessary facilities as a passage used for trains, including roadbed, tracks, bridges, tunnels, as well as station facilities and signaling facilities and electronic lines for electric operation.

These lines are regularly or irregularly maintained to ensure the timeliness and safety of train operations by ensuring that the trains operate at optimum conditions at all times.

In this way, when the operator is located on the side of the line for maintenance of the line, a vibration sensing device is provided on the line for sensing the entry of the train into the vicinity of the operator, and when the vibration measured on the line is equal to or higher than a predetermined reference value A method of providing an alarm, a method of providing an alarm by accessing a train by installing a radio facility in a train and using a dedicated terminal.

In the case of the train approach detection system according to the vibration detection device, some errors may occur in the detection values detected according to the surrounding environment. Only the operator can know the approach of the train. In the case of the train approach detection system according to the satellite, In case of train approach approach due to sound waves or radio waves, it is necessary to connect the detector to the train approach direction in order to detect the train access. There is an inconvenience caused by the necessity of constantly carrying and moving. In the case of using the special radio equipment and the dedicated terminal, the accessibility of the train is deteriorated due to the use of the dedicated terminal. Further, There are inconveniences and expense to fall, and to acquire a certain frequency.

However, in the case of using the Wi-Fi approach, it is more versatile, portable and economical than all the above methods because it can use all the terminals that can use Wi-Fi, such as a general wireless router and a smart phone, There are extensibility because you can add various functions by software, not hardware.

Korean Patent Laid-Open No. 10-2012-0057683 [Title: Train Access Alarm System and Method]

An object of the present invention is to provide a train access alarm system for outputting an alarm signal for alarming the entry of a train when a terminal carried by a worker adjacent to the line receives a Wi-Fi signal radiated through a directional antenna provided in front of the train, It is in providing the method.

It is another object of the present invention to provide a Wi-Fi signal transmitted from a transmitter provided in a train to a terminal carried by an operator adjacent to the line and providing a corresponding Wi-Fi signal to one or more other terminals adjacent to the terminal, And simultaneously outputting an alarm signal to the plurality of terminals adjacent to the line, and a method thereof.

It is a further object of the present invention to provide an alarm signal for alarming the entry of a train through a portable Bluetooth speaker connected to the terminal when a WiFi signal transmitted from a transmitter included in the train is received at a terminal carried by an operator adjacent to the line The present invention provides a railway access alarm system that outputs railway trains and a method thereof.

A train approach alarm method according to an embodiment of the present invention includes the steps of: when receiving a secured Wi-Fi signal broadcasted through a directional antenna provided on a front side of a traveling direction of a train by a control unit through a communication unit Confirming whether a SSID (Service Set Identifier) included in the received Wi-Fi signal is a specific SSID set in advance; Generating an alarm signal for alarming the approach of the train by the control unit when the SSID included in the received WiFi signal is a predetermined SSID; And controlling at least one of the display unit and the audio output unit to output the generated alarm signal by the control unit.

The outputting of the alarm signal may include outputting the alarm signal immediately after receiving the Wi-Fi signal through the communication unit, regardless of whether or not the communication is made with a train broadcasting the Wi-Fi signal .

As an example related to the present invention, when the SSID included in the received Wi-Fi signal is a specific SSID set in advance, the control unit causes the generated alarm signal to be transmitted to the terminal Controlling the communication unit to transmit to one or more other terminals for output from one or more other terminals; And controlling the communication unit to transmit the generated alarm signal to the Bluetooth speaker in order to output the generated alarm signal through the Bluetooth speaker connected to the terminal when the SSID included in the received WiFi signal is a predetermined SSID step; Generating current state information according to an operator input related to the terminal by the controller when the SSID included in the received WiFi signal is a preset specific SSID; And transmitting, by the communication unit, at least one of the generated current state information, the alarm signal, the generation time information of the alarm signal, and the identification information of the terminal to the server.

According to another aspect of the present invention, there is provided a method of controlling a wireless communication system, the method comprising: performing communication connection with the train that has transmitted the Wi-Fi signal based on the received Wi-Fi signal; And transmitting the generated alert signal and the identification information of the terminal to the communication-connected train by the communication unit.

A train access alarm system according to an embodiment of the present invention includes a communication unit for receiving a secured Wi-Fi signal broadcasted through a directional antenna provided on a front side of a traveling direction of a train; Wherein the communication unit checks whether the SSID included in the received Wi-Fi signal is a predetermined SSID when receiving the secured Wi-Fi signal broadcasted from the train by the communication unit, and if the SSID included in the received Wi- A control unit for generating an alarm signal for alarming the approach of the train when the SSID is a predetermined SSID; And a sound output unit for outputting sound information corresponding to the generated alarm signal.

In the present invention, when a WiFi signal radiated through a directional antenna provided in front of a train is received at a terminal owned by an operator adjacent to the line, an alarm signal for alarming the entry of the train is output so that a specific SSID is included in the terminal It is possible to output an alarm signal and to enhance stability according to an operator-oriented alarm signal output.

In addition, in the present invention, when a Wi-Fi signal transmitted from a transmitter included in a train is received at a terminal owned by an operator adjacent to the line, the Wi-Fi signal is provided to one or more other terminals adjacent to the terminal to alert the entry of the train By simultaneously outputting an alarm signal for a plurality of terminals adjacent to the corresponding line, even when one terminal among a plurality of terminals possessed by a plurality of operators receives an WiFi signal transmitted from a transmitter provided in a train, It reduces the possibility of errors and prevents the possibility of secondary accidents.

In addition, in the present invention, when a Wi-Fi signal transmitted from a transmitter included in a train is received at a terminal owned by an operator adjacent to the line, an alarm signal for alarming entry of the train through a portable Bluetooth speaker connected to the terminal is outputted , An effective alarm can be confirmed in a work environment where noise is generated.

1 is a block diagram illustrating a configuration of a train access alarm system according to an embodiment of the present invention.
2 is a block diagram illustrating a configuration of a UE according to an embodiment of the present invention.
3 is a flowchart illustrating a method of alarming a train access according to an embodiment of the present invention.
4 is a diagram illustrating a relationship between a terminal and a terminal that transmits and receives a Wi-Fi signal including a specific SSID according to an embodiment of the present invention.

It is noted that the technical terms used in the present invention are used only to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in the present invention should be construed in a sense generally understood by a person having ordinary skill in the art to which the present invention belongs, unless otherwise defined in the present invention, Should not be construed to mean, or be interpreted in an excessively reduced sense. In addition, when a technical term used in the present invention is an erroneous technical term that does not accurately express the concept of the present invention, it should be understood that technical terms that can be understood by a person skilled in the art can be properly understood. In addition, the general terms used in the present invention should be interpreted according to a predefined or prior context, and should not be construed as being excessively reduced.

Furthermore, the singular expressions used in the present invention include plural expressions unless the context clearly dictates otherwise. The term "comprising" or "comprising" or the like in the present invention should not be construed as necessarily including the various elements or steps described in the invention, Or may further include additional components or steps.

Furthermore, terms including ordinals such as first, second, etc. used in the present invention can be used to describe elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or similar elements throughout the several views, and redundant description thereof will be omitted.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It is to be noted that the accompanying drawings are only for the purpose of facilitating understanding of the present invention, and should not be construed as limiting the scope of the present invention with reference to the accompanying drawings.

1 is a block diagram showing a configuration of a train access alarm system 10 according to an embodiment of the present invention.

As shown in FIG. 1, the train access alarm system 10 is composed of a train 100 and a terminal 200. Not all of the components of the train access alarm system 10 shown in FIG. 1 are required, and the train access alarm system 10 may be implemented by more components than the components shown in FIG. 1, The train access alarm system 10 may also be implemented by fewer components.

The train 100 includes a plurality of components (not shown) for controlling (or managing) the operation of the train 100.

In addition, the train 100 includes a directional antenna (not shown) on the front surface of the train 100. Here, the directional antenna includes a Yagi antenna, a dish antenna, and the like.

When the train 100 is located on a line or runs on the line, the train 100 (or a transmission / reception unit (not shown) included in the train 100) is set in advance via the directional antenna (Or broadcasts) a Wi-Fi signal including a unique SSID (Service Set Identifier) to a front side of the traveling direction of the train 100 at a predetermined time interval. At this time, the WiFi signal including the SSID may be transmitted in a state where the SSID is set to a hidden state in a security setting such that the other WiFi signal (not shown) located in the vicinity of the line can not detect the WiFi signal, Manager) can be transmitted in a secured state so that only the specific terminal possessed by the terminal can confirm the corresponding Wi-Fi signal.

As described above, the WiFi signal transmitted from the train 100 is not used for data transmission / reception with a general terminal located in the vicinity of a line or a line, but may be a terminal (not shown) operated by a pre- 200 for data transmission and reception.

Accordingly, the Wi-Fi signal transmitted from the train 100 may be in a state in which the general terminal located in the vicinity of the station or the line can not be detected or able to confirm the corresponding Wi-Fi signal.

As described above, by using the directional antenna and transmitting the Wi-Fi signal from the front of the traveling direction of the train 100, the terminal 200 capable of receiving the Wi- It is possible to configure not to receive the Wi-Fi signal broadcasted on the train 100 from the terminal 200 carried by the operator who boarded the train 100, even if an operator is on board.

In addition, by using the directional antenna, it is possible to achieve a communication distance of at least 1 Km on a flat ground, and to realize a communication distance of at least 500 m even in a tunnel or a curved section.

That is, when the train 100 travels at a speed of 80 Km / h, it moves at a speed of about 22 m at a speed of about 80 m / h. A Wi-Fi signal transmitted (or broadcasted) from the train 100 travels at about 200 m It has a distance of ~ 300m.

Thus, even if the worker does not find the train 100 on the line located in the traveling direction of the train 100 when the electric wave of about 200 m is transmitted / received, the worker can not find the train 100, It is possible to secure a time for evacuation for about 10 seconds according to the reception of the signal.

In this way, by using the directional antenna, an operator working in a line located in the traveling direction of the train 100 can evacuate according to the reception of the Wi-Fi signal through the terminal 200 carried by the operator Sufficient time can be secured.

In addition, when some of the lines are curved, the train 100 may adjust the radiation angle of the Wi-Fi signal based on the curvature of the curved section with respect to the line, which is a curve section previously registered.

That is, when some of the lines are in a curve section, the train 100 confirms the current position of the train 100, and the line 100, which is a curve section according to the current position of the train 100, (Or transmit / broadcast) a radiating angle of a WiFi signal broadcast based on a curvature of a curve section preset (or registered) with respect to the line as the identified curve section.

At this time, if the degree of curvature (or curvature) of the line is equal to or greater than a predetermined threshold value, the curved line may be equipped with a Wi-Fi repeater (not shown), a Wi-Fi relay (not shown)

In addition, when the Wi-Fi repeater, the Wi-Fi relay, and the like receive a Wi-Fi signal including the unique SSID transmitted (or broadcast) from the train 100, the Wi-Fi repeater, Wi- (Or extension) of the Wi-Fi signal by retransmitting the Wi-Fi signal including the Wi-Fi signal in the direction after the bending of the line (or the traveling direction of the train 100) It is possible to secure a time for the worker who is working in a situation where the worker is not visible.

In addition, when some of the lines pass through the tunnel, the train 100 may adjust the radiation angle and / or diffraction of the Wi-Fi signal based on tunnel information about the line that is located in the corresponding tunnel zone registered in advance have.

That is, when some of the lines pass through the tunnel, the train 100 confirms the current position of the train 100, and determines the current position of the train 100 according to the current position of the train 100, And controls the radiation angle and / or diffraction of the WiFi signal broadcast based on the curvature and / or the reflectance of a tunnel section that is preset (or registered) with respect to the line, which is the identified tunnel section, (Or transmit / broadcast).

In addition, if there is a terminal 200 that tries (or performs) a communication connection based on the transmitted (or broadcast) WiFi signal, the train 100 communicates with the terminal 200.

Also, the train 100 receives an alarm signal transmitted from the corresponding terminal 200 connected to the train, identification information of the terminal 200, and the like.

Also, the train 100 outputs the received alarm signal.

In addition, when the terminal 100 is communicatively connected to the terminal 200 based on the Wi-Fi signal, the train 100 determines that an operator is located on the front of the train 100, generates an alarm signal, The generated alarm signal is outputted to the driver in the train so that both the driver and the operator can prepare for the train accident.

The terminal 200 is a terminal capable of configuring a system by installing only software in accordance with an operating system and an environment in a variety of terminals having versatility and portability, not installing a special facility or a device or a dedicated terminal, A portable terminal, a mobile terminal, a personal digital assistant (PDA), a portable multimedia player (PMP) terminal, a telematics terminal, a navigation terminal, a personal computer A computer, a notebook computer, a slate PC, a tablet PC, an ultrabook, a wearable device such as a smartwatch, a smart glass, , An HMD (Head Mounted Display), etc.), a Wibro terminal, an IPTV (Internet Protocol Television) terminal, a smart TV, a digital broadcast terminal, an AVN ion terminal, an audio / video (A / V) system, a flexible terminal, and the like.

2, the terminal 200 includes a communication unit 210, a storage unit 220, a display unit 230, an audio output unit 240, and a control unit 250. Not all of the components of the train access alarm system 10 shown in Fig. 2 are essential components, and the terminal 200 may be implemented by more components than the components shown in Fig. 2, The terminal 200 may also be implemented by elements.

Here, the terminal 200 may be a specific terminal carried by an operator working in the vicinity of a line or a line.

The communication unit 210 communicates with at least one external terminal or any internal component via a wired / wireless communication network. At this time, the external arbitrary terminal may include the train 100, a server / center (not shown), another device (or terminal) (not shown) adjacent to the terminal 200, and the like. Here, the wireless Internet technology includes a wireless LAN (WLAN), a digital living network alliance (DLNA), a wireless broadband (Wibro), a world interoperability for a microwave (WiMAX), a high speed downlink packet access ), HSUPA (High Speed Uplink Packet Access), IEEE 802.16, Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), Wireless Mobile Broadband Service (WMBS) And the communication unit 210 transmits and receives data according to at least one wireless Internet technology in a range including Internet technologies not listed above. In addition, the near field communication technology includes Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, Near Field Communication (NFC) , Ultra Sound Communication (USC), Visible Light Communication (VLC), Wi-Fi, and Wi-Fi Direct. The wired communication technology may include a power line communication (PLC), a USB communication, an Ethernet, a serial communication, an optical / coaxial cable, and the like.

In addition, the communication unit 210 can transmit information to and from an arbitrary terminal through a universal serial bus (USB).

In addition, the communication unit 210 may be a mobile communication system such as a mobile communication system, a mobile communication system, a mobile communication system, a mobile communication system, (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (Or terminal) adjacent to the base station, the train 100, the server, and the terminal 200 on a mobile communication network established according to a long term evolution (AR) method or the like.

Also, the communication unit 210 may receive a Wi-Fi signal broadcasted from a transceiver provided in the traveling direction of the train 100 under control of the controller 250, a Wi-Fi transceiver (or a beacon) And receives a WiFi signal broadcasted.

That is, the communication unit 210 includes an antenna (not shown) for receiving a Wi-Fi signal transmitted through a directional antenna provided on a front surface of the train 100, a Wi-Fi signal transmitted from a line or a Wi- ), And the like.

The storage unit 220 stores various user interfaces (UI), a graphical user interface (GUI), and the like.

In addition, the storage unit 220 stores data, programs, and the like necessary for the terminal 200 to operate.

That is, the storage unit 220 may store a plurality of application programs or applications that are driven by the terminal 200, data for operation of the terminal 200, and commands. At least some of these applications may be downloaded from an external server via wireless communication. The application program may be stored in the storage unit 220 and may be installed in the terminal 200 and may be operated by the control unit 250 to perform operations (or functions) of the terminal 200.

The storage unit 220 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD A random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory And a PROM (Programmable Read-Only Memory). In addition, the terminal 200 may operate a web storage that performs a storage function of the storage unit 220 on the Internet, or may operate in association with the web storage.

The storage unit 220 stores a Wi-Fi signal broadcasted from a transceiver included in the traveling direction of the train 100 received through the communication unit 210, a Wi-Fi transceiver (or a beacon) And the like.

The display unit 230 can display various contents such as various menu screens using the user interface and / or graphical user interface stored in the storage unit 220 under the control of the controller 250. [ Here, the content displayed on the display unit 230 includes various text or image data (including various information data) and a menu screen including data such as an icon, a list menu, and a combo box.

The display unit 230 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) And may include at least one of a flexible display, a 3D display, an e-ink display, and an LED (Light Emitting Diode).

Also, the display unit 230 displays an alarm signal generated under the control of the controller 250.

The voice output unit 240 outputs voice information included in the signal processed by the control unit 250. Here, the audio output unit 240 may include a receiver, a speaker, a buzzer, and the like.

Also, the voice output unit 240 outputs the guidance voice generated by the control unit 250.

Also, the audio output unit 240 outputs audio information (or audio information) corresponding to the alarm signal generated by the controller 250.

The control unit 250 executes the overall control function of the terminal 200.

The control unit 250 executes the overall control functions of the terminal 200 using the programs and data stored in the storage unit 220. [ The controller 250 may include a RAM, a ROM, a CPU, a GPU, and a bus, and the RAM, the ROM, the CPU, and the GPU may be connected to each other via a bus. The CPU accesses the storage unit 220 and performs booting using the O / S stored in the storage unit 220. The CPU 220 performs various operations using various programs, contents, data stored in the storage unit 220, Can be performed.

Also, the controller 250 may be configured to transmit a Wi-Fi signal including a specific SSID transmitted (or broadcast) from the train 100, a Wi-Fi signal transmitted from a Wi-Fi transceiver (or a beacon) Via the communication unit 210, a Wi-Fi signal for general data transmission / reception.

When receiving the Wi-Fi signal from the communication unit 210, the controller 250 determines (or determines) whether the SSID included in the received Wi-Fi signal is a predetermined SSID.

That is, when the communication unit 210 of the terminal 200 possessed by the worker located near the line receives the Wi-Fi signal including the SSID transmitted in the secured state, the control unit 250 determines that the received Wi- Or the SSID included in the received Wi-Fi signal is transmitted to the mobile station 100 in order to check whether it is a Wi-Fi signal for a plurality of users located in the vicinity of the line or a specific Wi- It is determined whether the SSID is a specific SSID preset in association with the SSID 100. [

If the SSID included in the received Wi-Fi signal is not a predetermined SSID preset in association with the train 100, the controller 250 may transmit the Wi- .

That is, when the SSID included in the received Wi-Fi signal is not a specific Wi-Fi signal for informing access of the train 100, but is a Wi-Fi signal for general data transmission / reception , The controller 250 returns to the process of receiving the broadcasted WiFi signal.

When the SSID included in the received WiFi signal corresponds to a predetermined SSID preset in association with the train 100, the controller 250 determines whether the SSID included in the received Wi- Lt; / RTI >

Also, the controller 250 outputs the generated alarm signal through the display unit 230 and / or the audio output unit 240. At this time, the control unit 250 can generate and output the alarm signal immediately after receiving the Wi-Fi signal regardless of whether or not the communication with the train 100 that transmitted the Wi-Fi signal is established. Here, the control unit 250 may output the generated alarm signal through a specific application (or application) installed in the terminal 200 in advance.

That is, when the SSID included in the received Wi-Fi signal is a specific Wi-Fi signal for informing the access of the train 100, the controller 250 may determine that the terminal 200 The signal intensity at the time of transmission of the train 100 may be stronger than the signal strength at the time of transmission of the Wi-Fi signal. Therefore, in order to secure the operator located around the line, An alarm signal for alarming the approach of the train 100 is generated and the generated alarm signal is output through the display unit 230 and /

The terminal 200 can perform a mutual confirmation procedure between the train operator 100 and the terminal 200 and the worker who has the terminal 200 on the train 100, The terminal 200 generates an alarm signal immediately when the terminal 200 receives the Wi-Fi signal transmitted from the train 100, prioritizes the safety of the operator, , Illumination, vibration, etc.).

In addition, the control unit 250 controls the communication unit 210 to transmit the generated alarm signal to at least one other terminal (not shown) owned by at least one worker adjacent to the terminal 200, And can be transmitted by a local area communication method.

At this time, one or more other terminals held by an operator adjacent to the terminal 200 can receive the alarm signal transmitted from the terminal 200, and output the received alarm signal. Here, some of the one or more other terminals may be connected to the terminal 200 by a low-power Bluetooth communication method in a state in which the Wi-Fi system is off according to a battery setting of the corresponding terminal, And may receive the alarm signal to be transmitted.

The control unit 250 transmits the generated alarm signal to the Bluetooth speaker (not shown) connected to the terminal 200 by the communication unit 210.

At this time, the Bluetooth speaker receives the alarm signal transmitted from the terminal 200, and generates an acoustic and / or acoustic signal based on the received alarm signal to provide an effective alarm (or an alarm) Or alarm information in the form of illumination (or light / LED).

Also, the control unit 250 generates current state information according to an operator input (or an operator selection).

The controller 250 controls the communication unit 210 to transmit the generated current state information, the alarm signal, the generation time information of the alarm signal, the identification information of the terminal 200, (Not shown). Here, the current state information may include information about whether the current state is currently being performed, whether the operation is completed, and whether the state has been withdrawn. At this time, the identification information of the terminal 200 includes a mobile directory number (MDN), a mobile IP, a mobile MAC, a SIM (subscriber identity module) card unique information, and a serial number.

In addition, the control unit 250 may receive the generated current state information, the alarm signal, the generation time information of the alarm signal, the identification (ID) of the terminal 200 through a specific application (or application) Information or the like to the server (or the center).

At this time, the server receives the current state information, the alarm signal, the generation time information of the alarm signal transmitted from the terminal 200, the identification information of the terminal 200, and the like, (Or output) the state of the worker at the workplace.

In addition, the control unit 250 attempts (or performs) a communication connection with the train 100 through the communication unit 210 based on the received Wi-Fi signal.

When the communication between the terminal 200 and the train 100 is normally established, the control unit 250 controls the communication unit 210 to transmit the generated alarm signal, identification information of the terminal 200, To the train (100).

In this way, when a WiFi signal radiated through a directional antenna provided in front of a train is received at a terminal owned by an operator adjacent to the line, an alarm signal for alarming entry of the train can be output.

When a WiFi signal transmitted from a transmitter included in a train is received at a terminal owned by an operator adjacent to the line, the WiFi signal is provided to one or more other terminals adjacent to the terminal to alert the entry of the train Can simultaneously output an alarm signal for a plurality of terminals adjacent to the line.

When a WiFi signal transmitted from a transmitter included in a train is received at a terminal owned by an operator adjacent to the line, an alarm signal for alarming entry of the train through a portable Bluetooth speaker connected to the terminal is output .

Hereinafter, a method of alarming a train access according to the present invention will be described in detail with reference to FIG. 1 to FIG.

3 is a flowchart illustrating a method of alarming a train access according to an embodiment of the present invention.

First, a train 100 (or a transmission / reception unit (not shown) included in the train 100) located on a line is connected to a train 100 through a directional antenna (not shown) (Or broadcasts) a Wi-Fi signal including an SSID (Service Set Identifier) to a front side in the traveling direction of the train 100 at predetermined time intervals. At this time, the WiFi signal including the SSID may be transmitted in a state where the SSID is set to a hidden state in a security setting such that the other WiFi signal (not shown) located in the vicinity of the line can not detect the WiFi signal, Manager) can be transmitted in a secured state so that only the specific terminal possessed by the terminal can confirm the corresponding Wi-Fi signal. Here, the directional antenna includes a Yagi antenna, a dish antenna, and the like.

In addition, when some of the lines are curved, the train 100 may adjust the radiation angle of the Wi-Fi signal based on the curvature of the curved section with respect to the line, which is a curve section previously registered.

In addition, when some of the lines pass through the tunnel, the train 100 may adjust the radiation angle and / or diffraction of the Wi-Fi signal based on tunnel information about the line that is located in the corresponding tunnel zone registered in advance have.

At this time, if the degree of curvature (or curvature) of the line is equal to or greater than a predetermined threshold value, the curved line may be equipped with a Wi-Fi repeater (not shown), a Wi-Fi relay (not shown)

When the Wi-Fi repeater, the Wi-Fi relay, or the like receives a Wi-Fi signal including the unique SSID transmitted (or broadcasted) from the train 100, the Wi-Fi repeater, Wi- (Or extension) of the Wi-Fi signal by retransmitting the Wi-Fi signal including the Wi-Fi signal in the direction after the bending of the line (or the traveling direction of the train 100) It is possible to secure a time for the worker who is working in a situation where the worker is not visible.

For example, the first train 100, which travels in the outer section of the subway line 2, is hidden at a predetermined time interval through the directional antenna provided at the front of the traveling direction of the first train, A first Wi-Fi signal including a first SSID set in a state is broadcast (S310).

Then, when the WiFi signal including the SSID transmitted in the secured state is received by the terminal 200 carried by the worker located near the line, the terminal 200 determines whether the SSID included in the received WiFi signal is a predetermined SSID (Or judges) whether or not it is the case that it is.

That is, when a Wi-Fi signal including an SSID transmitted in a secured state is received by a terminal 200 owned by an operator located near the line, the terminal 200 transmits the received Wi-Fi signal to the sub- The SSID included in the received Wi-Fi signal is transmitted in advance to the train 100 in order to confirm whether the received signal is a Wi-Fi signal for the user or a specific Wi-Fi signal for the purpose (or use) Check whether it is a specific SSID set.

For example, when receiving a first WiFi signal broadcast from the first train at a first terminal owned by a first worker working on a line around the riverfront of the subway line 2, the first terminal transmits the received Wi- 1 confirms whether the first SSID included in the Wi-Fi signal is a specific SSID preset in association with the operation of the train.

In another example, when receiving an eleventh WiFi signal broadcast from an arbitrary device (not shown) in an eleventh terminal carried by an eleventh operator working in a line around the Samsung station on the subway line 2, In step S320, it is determined whether the eleventh SSID included in the received eleventh WiFi signal is a specific SSID preset in association with the operation of the train.

If the SSID included in the received Wi-Fi signal is not a predetermined SSID preset in association with the train 100, the terminal 200 transmits a Wi- .

That is, when the SSID included in the received Wi-Fi signal is not a specific Wi-Fi signal for informing access of the train 100, but is a Wi-Fi signal for general data transmission / reception , The terminal 200 returns to the process of receiving the broadcasted WiFi signal.

For example, if it is determined that the eleventh SSID included in the received eleventh WiFi signal is not a specific SSID previously set in association with the train operation (or the eleventh WiFi signal is transmitted / received around the Samsung station) (Step S310), the eleventh terminal returns to the step of receiving the broadcasted WiFi signal (step S310).

If the SSID included in the received Wi-Fi signal corresponds to a predetermined SSID previously set in association with the train 100, the terminal 200 may access the train 100 And outputs the generated alarm signal. At this time, the terminal 200 can generate and output the alarm signal immediately after receiving the Wi-Fi signal, regardless of whether or not the terminal 100 transmits the Wi-Fi signal.

That is, if the SSID included in the received Wi-Fi signal is a specific Wi-Fi signal for informing the access of the train 100, the terminal 200 may transmit the Wi- Generates an alarm signal for alarming the approach of the train 100 and outputs the generated alarm signal prior to the communication connection with the train 100 that has transmitted the Wi-Fi signal.

4, when the first SSID included in the received first Wi-Fi signal is a specific SSID preset in association with the operation of the train (or when the first Wi- The first terminal generates a first alarm signal for guiding the approach of the first train, and outputs the generated first alarm signal.

In addition, the terminal 200 can transmit the generated alarm signal to one or more other terminals (not shown) owned by one or more workers adjacent to the terminal 200 by a short distance communication method including a Bluetooth method or the like have.

One or more other terminals possessed by an operator adjacent to the terminal 200 may receive the alert signal transmitted from the terminal 200 and output the received alert signal.

In another example, the first terminal transmits the generated first alarm signal to the second terminal and the third terminal held by the second worker and the third worker working together in the line around the riverfront of the subway line 2, Lt; / RTI > Each of the second terminal and the second terminal receives the first alarm signal transmitted from the first terminal and outputs the received first alarm signal, respectively.

Also, the terminal 200 may transmit the generated alarm signal to a Bluetooth speaker (not shown) connected to the terminal 200. [

In addition, the Bluetooth speaker receives the alarm signal transmitted from the terminal 200, and generates an acoustic and / or acoustic signal based on the received alarm signal to provide an effective alarm (or an alarm) in a work environment where noise or the like occurs. Or alarm information in the form of illumination (or light / LED).

In another example, the first terminal transmits the generated first alarm signal to a first Bluetooth speaker connected to the first terminal through a Bluetooth communication method. The first Bluetooth speaker receives a first alarm signal transmitted from the first terminal, and generates an alarm sound corresponding to the first alarm signal based on the received first alarm signal to the first Bluetooth speaker (Not shown), and outputs a beating light corresponding to the first alarm signal through an LED (not shown) provided in the first Bluetooth speaker.

Also, the terminal 200 generates current state information according to an operator input (or operator selection), and generates the current state information, the alarm signal, the generation time information of the alarm signal, Information or the like to a server (or center) (not shown). Here, the current state information may include information about whether the current state is currently being performed, whether the operation is completed, and whether the state has been withdrawn. At this time, the identification information of the terminal 200 includes an MDN, a mobile IP, a mobile MAC, a SIM (subscriber identity module) card unique information, and a serial number. Also, the server receives the current state information, the alarm signal, the generation time information of the alarm signal, the identification information of the terminal 200, and the like transmitted from the terminal 200, (Or output) the state of the worker at the workplace (S340).

Then, the terminal 200 attempts (or performs) a communication connection with the train 100 based on the received Wi-Fi signal.

When the communication between the terminal 200 and the train 100 is normally performed, the terminal 200 transmits the generated alert signal, identification information of the terminal 200, and the like to the train 100 do.

For example, the first terminal performs a communication function with the first train based on the received first Wi-Fi signal. Also, when a communication connection between the first terminal and the first train is normally performed, the first terminal transmits the generated first alarm signal, identification information of the first terminal, and the like to the first train S350).

Then, the train 100 receives an alarm signal transmitted from the terminal 200 connected to the train, identification information of the terminal 200, and the like.

Also, the train 100 outputs the received alarm signal.

At this time, when the train 100 communicates with the terminal 200, it is determined that an operator is located on the front of the train 100 in the traveling direction, thereby generating an alarm signal, Output.

For example, the first train receives a first alarm signal transmitted from the first terminal, identification information of the first terminal, and the like after a communication connection with the first terminal. In addition, the first train may transmit an alarm sound and / or a warning light corresponding to the received first alarm signal through an alarm output unit (not shown) provided in an area in which the operator (or engineer) (S360).

As described above, in the embodiment of the present invention, when a WiFi signal radiated through a directional antenna provided in front of a train is received at a terminal carried by an operator adjacent to the line, an alarm signal for alarming the entry of the train And outputs an alarm signal even when the terminal only receives a Wi-Fi signal including a specific SSID, thereby enhancing stability according to an operator-oriented alarm signal output.

As described above, in the embodiment of the present invention, when a WiFi signal transmitted from a transmitter provided in a train is received by a terminal carried by an operator adjacent to the line, the WiFi signal is transmitted to one or more other terminals adjacent to the terminal, An alarm signal for alarming the entrance of a train is simultaneously output from a plurality of terminals adjacent to the line so that even a terminal among a plurality of terminals possessed by a plurality of operators can transmit a Wi-Fi signal transmitted from a transmitter When receiving, it outputs an alarm signal to reduce the possibility of error and prevent the possibility of secondary accident.

As described above, in the embodiment of the present invention, when a Wi-Fi signal transmitted from a transmitter provided in a train is received by a terminal carried by an operator adjacent to the line, the entry of the train through the portable Bluetooth speaker connected to the terminal An effective alarm can be confirmed in a work environment where noise is generated.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

In the present invention, when a WiFi signal radiated through a directional antenna provided in front of a train is received at a terminal owned by an operator adjacent to the line, an alarm signal for alarming the entry of the train is output so that a specific SSID is included in the terminal Even in the case of receiving only the Wi-Fi signal, it is possible to enhance the stability according to the output of the alarm signal based on the operator by outputting an alarm signal. It is widely used in Wi-Fi communication field, train access warning field, safety system field, terminal field, Can be used.

10: train access alarm system 100: train
200: terminal 210:
220: storage unit 230: display unit
240: audio output unit 250:

Claims (5)

1. A train access warning method,
When a SSID (Service Set Identifier) included in the received Wi-Fi signal is transmitted to the mobile station through a directional antenna provided on the front side in the traveling direction of the train through the communication unit, Confirming whether it is an SSID;
Generating an alarm signal for alarming the approach of the train by the control unit when the SSID included in the received WiFi signal is a predetermined SSID; And
And controlling at least one of a display unit and an audio output unit to output the generated alarm signal by the control unit. The method according to claim 1,
The step of outputting the alarm signal includes:
And outputting the alarm signal immediately after receiving the Wi-Fi signal through the communication unit regardless of whether or not the communication is made with a train broadcasting the Wi-Fi signal. The method according to claim 1,
When the SSID included in the received Wi-Fi signal is a predetermined SSID, the controller outputs the generated alarm signal from one or more other terminals held by one or more workers adjacent to the terminal including the controller Controlling the communication unit to transmit to the at least one other terminal;
And controlling the communication unit to transmit the generated alarm signal to the Bluetooth speaker in order to output the generated alarm signal through the Bluetooth speaker connected to the terminal when the SSID included in the received WiFi signal is a predetermined SSID step;
Generating current state information according to an operator input related to the terminal by the controller when the SSID included in the received WiFi signal is a preset specific SSID; And
Further comprising the step of transmitting, by the communication unit, at least one of the generated current state information, the alarm signal, the generation time information of the alarm signal, and the identification information of the terminal to the server . The method according to claim 1,
Performing communication connection with the train that has transmitted the Wi-Fi signal based on the received Wi-Fi signal by the communication unit; And
Further comprising the step of transmitting, by the communication unit, the generated alarm signal and the identification information of the terminal to the communication-connected train. A train access alarm system,
A communication unit for receiving a secured Wi-Fi signal broadcasted through a directional antenna provided on a front side of the traveling direction of a train;
Wherein the communication unit checks whether the SSID included in the received Wi-Fi signal is a predetermined SSID when receiving the secured Wi-Fi signal broadcasted from the train by the communication unit, and if the SSID included in the received Wi- A control unit for generating an alarm signal for alarming the approach of the train when the SSID is a predetermined SSID; And
And a sound output unit for outputting sound information corresponding to the generated alarm signal.

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