KR100778776B1 - A emergency communication system and method at platform using wire and wireless network - Google Patents

Abstract

A train platform emergency call system using a wire/wireless communication network and a method for controlling the same are provided to rapidly cope with emergency situations by connecting a plurality of terminal units with relay systems and a central control system through wireless communication and power line communication and constructing an emergency call system. A train platform emergency call system using a wire/wireless communication network comprises a plurality of wireless terminal units(100a-100t), a central control system(300), and one or more relay systems(200a,200b). The wireless terminal units(100a-100t), installed at the top of a platform along a railroad track, execute wireless communication with the relay systems(200a,200b), and enable passengers, located at the platform, to execute wireless emergency calls with the station staff. The central control system(300), installed in a staff room, executes power line communication with the relay systems(200a,200b) and provides emergency calls between many passengers at the platform and the station staff of the staff room. The relay systems(200a,200b) are installed between the wireless terminal units(100a-100t) and the central control system(300). The relay systems(200a,200b) relay emergency calls between the wireless terminal units(100a-100t) and the central control system(300) by executing wireless communication with the wireless terminal units(100a-100t) and power line communication with the central control system(300).

Description

Train platform emergency call system using wired / wireless communication network and its control method {A EMERGENCY COMMUNICATION SYSTEM AND METHOD AT PLATFORM USING WIRE AND WIRELESS NETWORK}

The present invention relates to a train platform emergency call system using a wired / wireless communication network and a method of controlling the same, in which emergency calls are made between passengers in the platform and station workers in the station room. First of all, by installing a plurality of wireless terminal devices along the track to the platform of the platform, the relay system and the wireless communication network, and the communication system between the relay system and the station room system using the power line. Second, it is small, inexpensive, and easy to install, and third, it is possible to talk different contents with multiple passengers in case of multiple emergency situations.

As is well known, trains are a mass transit means of which high safety is the first priority, and many devices have been developed and used continuously to secure the safety of trains and passengers, improve operating efficiency and improve driving convenience. .

This concept of safety has advanced from the safety of the train itself to the safety of the non-train space, as well as the passenger-oriented operation as well as the safety of the train itself, as the amount of passenger transportation by train increases.

Korean Patent Registration No. 346753 "Train Stand Safety Alarm Device and Control Method thereof", or Korean Patent Registration No. 346750 "Train Stand Operation Control / Alarm Device and its Control Method", or My Prior Patent Applicant Republic of Korea Patent Application No. 10-2006-0122939 "train platform screen door emergency opening and closing system and its control method" or Republic of Korea Patent Application No. 10-2006-0135773 "emergency opening and closing control train platform screen door system and its control method", A screen door system that improves passenger safety and air quality in the station by installing fixed doors and movable doors (screen doors) at the end of the platform to block the platform and track parts is an example of a device that promotes the safety of passengers in the platform. to be.

As technology advances and the concept of passenger safety extends from the safety of everyday life to the safety of emergencies such as accidents, fires, and terrorism, devices that enable quick calls for passengers and station officials to take quick action Developed.

An emergency call device installed at each platform up / down line (or internal / external line) is an example of a device for realizing an emergency call between a passenger and a station attendant when an emergency occurs.

Figure 2 shows an example of a conventional emergency call device installed in the platform, as shown in the figure, the general emergency call device for adults (3), the emergency call device for the disabled (or children) 4, and the fire extinguisher housing After installation in (2), it was configured by connecting with the station office through the cable (1).

In the drawings, reference numerals 3a and 4d denote speakers, 3d and 4a microphones, 3b and 4b emergency call buttons, 3c and 4c guide call buttons, and 5) represents the fire extinguisher storage position, respectively.

Such a conventional emergency call device through the emergency call buttons (3b, 4b) used when an emergency situation such as fire, terror, and guide call buttons (3c, 4c) used when there is a guide and questions It is a device to make a call with a station employee.

However, the conventional emergency call apparatus as described above has a problem in that it is not possible to make a call of different contents with a plurality of passengers, and there are problems such as being limited by the installation space, excessive installation cost, and not easy to use. .

This will be described as follows.

As is known, the conventional emergency call device is connected to the interphone device (not shown) of a plurality of emergency call devices to one interphone device (not shown) installed in the station room, when the call request by the passenger and the corresponding emergency call device and Because of the realization of the call by establishing a communication path between the station offices, there was a problem in that it was not possible to make a different call with multiple passengers.

In addition, the conventional emergency call device is installed behind the boarding position of the platform due to the limitation of the installation space, so that the passenger located at the boarding position where the accident occurs most frequently finds an accident, and then moves it to the emergency call device installed at the back. There was a problem that it is not easy to talk to the station attendant.

For example, if a person falls on the track, the passenger at the boarding position will find it first, and the passenger who finds it is not suitable for installing the emergency call system to notify the station personnel by operating the emergency call system. There was a problem that can not be used.

In addition, when the train is entering the platform or when there are a lot of passengers in the platform, such as commute time, there is a problem that the use of the emergency call device is practically impossible, as well as the limitation of the communication method (interphone device) and excessive installation cost. Due to the insufficient number of installations, there was a problem that the function of the emergency call device could not be performed as intended.

An object of the present invention is to solve the above problems, in particular, by installing a plurality of wireless terminal devices (emergency communication device) at the end of the platform along the track to configure a relay system and a wireless communication network, the relay system By using the power line to configure the communication between the station and the station room system installed in the station room, it is possible to quickly respond to emergencies, facilitate installation and operation, and simultaneously handle multiple emergency situations. To provide a train platform emergency call system and control method using a wired / wireless communication network.

That is, communication between a plurality of radio terminal devices and a relay system installed in a relatively short distance is constituted by a wireless communication network, and communication between a station room system and a relay system located in a relatively long distance is constituted by a power line communication network. It is for the passenger located in the boarding position to be able to easily use, so that quick response processing can be performed, as well as easy installation and operation.

In order to achieve the above object, the present invention "train station emergency call system using a wired / wireless communication network",

A plurality of wireless terminal devices installed at the end of the platform along the track and performing wireless communication with the relay system to provide a wireless emergency call with a station attendant to a passenger located at the platform;

A station room system that is installed in the station room and performs power line communication with one or more relay systems to provide emergency calls with one or more passengers to station workers located in the station room; And,

One or more relays installed between the radio terminal device and the station room system to perform radio communication with the plurality of radio terminal devices and to perform power line communication with the station room system, thereby relaying an emergency call between the radio terminal device and the station room system. It is characterized in that the configuration; including a system;

The wireless terminal device is characterized by periodically transmitting a specific signal indicating the normal operation of the wireless terminal device.

The wireless terminal device transmits a specific signal (eg, “11000011”) separate from the emergency call to the station room system periodically (eg, 10 seconds) through the relay system, thereby receiving the signal from the station room system. Allows you to monitor the normal operation of the wireless terminal device.

The station room system is characterized by periodically transmitting a specific signal (eg, "00111100") indicating the normal operation of the station room system.

Such a station room system periodically transmits a specific signal separate from an emergency call to a wireless terminal device (for example, 10 seconds) through a relay system, so that the wireless terminal device operates normally by receiving the signal from the wireless terminal device. The purpose of this is to determine whether or not the communication line with the station office system is abnormal.

The wireless terminal device is characterized by receiving a specific signal indicating the normal operation of the station office system by determining whether there is a communication line abnormality with the station office system.

Such a wireless terminal device indicates whether there is a communication line error with the station room system (ie, a wireless terminal device is abnormal) by receiving or not receiving a specific signal transmitted periodically (for example, 10 seconds) from the station room system. It is to facilitate maintenance and repair by indicating whether or not to the outside.

The station room system is characterized by receiving a specific signal indicating the normal operation of the wireless terminal device to determine whether there is a communication line abnormality with the station room system.

This station room system is designed to facilitate the maintenance and repair by indicating to the outside whether or not the normal operation of the wireless terminal device can be monitored by receiving a specific signal transmitted periodically (for example, 10 seconds) from the wireless terminal device. will be.

The wireless terminal device,

Terminal switch unit consisting of one or more switches operated by the passenger, for operating the emergency call function;

Terminal voice input unit for inputting the voice of the passenger;

A terminal voice output unit configured to output a voice of a station attendant transmitted through the relay system;

A terminal display unit indicating an operation state of the wireless terminal device;

A terminal wireless communication unit performing wireless communication with the relay system;

It is connected between the terminal switch unit, the terminal voice input unit, the terminal voice output unit, the terminal display unit, and the terminal wireless communication unit to control the operation of each unit to make an emergency call with the station room system through the relay system. Terminal control unit; And,

Terminal power supply for supplying power; characterized in that comprises a.

The terminal switch unit, it is preferable that the emergency call button used when an emergency situation such as an accident, fire, terrorism, and guide call button used when there is guidance and questions.

Preferably, the terminal control unit includes an input / output terminal, a calculation module, a memory, and optionally a communication module or an A / D converter (ANALOG / DIGITAL CONVERTER), and a microcomputer having a D / A converter (DIGITAL / ANALOG CONVERTER) function. Do.

The terminal voice input unit,

MIC; A first amplifier for amplifying a voice signal input through the microphone; And a first A / D converter for converting a voice signal into a digital signal.

The terminal voice input unit amplifies a voice signal input through the microphone through a first amplifier, converts the voice signal into a digital signal through the first A / D converter, and applies it to the terminal controller.

When the terminal controller has an A / D converter function, the A / D converter of the terminal voice input unit is omitted.

The terminal voice output unit,

A first D / A converter converting the digital signal output from the terminal controller into an analog signal; A second amplifier for amplifying an audio signal output from the first D / A converter; And a speaker.

The terminal voice output unit converts the digital voice signal output from the terminal control unit into an analog signal, amplifies it, and outputs the same through the speaker.

When the terminal control unit has a D / A converter function, the D / A converter (first D / A converter) of the terminal audio output unit is omitted.

The terminal display unit is preferably composed of LEDs that are turned on under the control of the terminal control unit and illuminate each button (switch) of the normal operation state, the call state, and the terminal switch unit of the wireless terminal device.

For example, when the terminal switch unit includes an emergency call button and a guide call button, the terminal display unit may include a green LED indicating a normal operation state of the wireless terminal device and a red LED indicating that the operation of the wireless terminal device is not normal. And a white LED illuminating the emergency call button and the guide call button, and a yellow LED indicating when the emergency call button or the guide call button is operated, and whether each LED is turned on according to a control signal of the terminal controller. Can be controlled.

Since the configuration and operation of controlling the lighting of the LED by the control signal are well known, detailed description thereof will be omitted.

The terminal wireless communication unit is preferably configured of an RF (RADIO FREQUENCY) wireless communication device, an RFID (RADIO FREQUENCY IDENTIFICATION), Bluetooth (BLUETOOTH) and the like.

When transmitting a signal from the terminal wireless communication unit to the relay system, it is preferable to give a specific ID (IDENTIFICATION) for distinguishing each wireless terminal device.

Since the configuration and operation of the RF wireless communication device, RFID, and Bluetooth are well known, detailed description thereof will be omitted.

The power supply unit, the self-generation means for converting light energy into electrical energy; And a power storage unit for storing electricity generated by the self-power generation means.

The self-power generation means, SOLAR CELL; A rectifier circuit converting the AC power generated in the solar cell into a DC power source; And a charging circuit converting the power output from the rectifier circuit into the charging voltage of the storage battery.

Since the configuration and operation of a solar power generator, a rectifier circuit, and a charging circuit which perform self-generation by using a solar cell (solar cell) are well known, their detailed description is omitted.

Such a power supply unit generates power by using solar power so that the wireless terminal device can be operated without a separate power supply device.

The power supply unit includes a rectifier circuit for converting the voltage of the commercial AC power applied to the rectified and then converted to a DC power; A charging circuit converting the power output from the rectifying circuit into a charging voltage of a storage battery; And a power storage unit configured to store power output from the rectifier circuit.

Since the configuration and operation of the rectifying circuit and the charging circuit for converting a commercial AC power supply to a specific DC power supply are well known, detailed description thereof will be omitted.

The relay system,

A relay wireless communication unit performing wireless communication with a plurality of wireless terminal devices;

A relay power line communication unit performing power line communication with the station office system;

A relay control unit connected between the relay wireless communication unit and the relay power line communication unit to relay communication between the wireless terminal device and a station room system; And,

And a relay power supply unit for supplying power.

The relay wireless communication unit is preferably composed of an RF wireless communication device, RFID, or Bluetooth.

When transmitting a signal from the relay wireless communication unit to the wireless terminal system, it is preferable to assign an ID of each wireless terminal device so that the signal can be received only from a specific wireless terminal system.

The relay power line communication unit may include: a relay data transmitter configured to modulate transmission data into an analog signal of high frequency and transmit the transmission data to the station room system through a power line; And a relay data receiver configured to receive a signal transmitted from the station room system through a power line, demodulate it into a digital signal, and apply the demodulated signal to the relay controller.

The relay data transmitter,

A relay modulator for modulating the transmission data output from the relay controller;

A relay amplifier for amplifying the transmission data output from the relay modulator; And,

And a relay transmission interface unit configured to impedance match the relay amplifier and the power line.

The relay data receiver,

A relay receiving interface unit for impedance matching the power line;

A relay filter for filtering the received data output from the relay receiving interface unit; And,

And a demodulation demodulator for demodulating the received data output from the relay filter unit and applying the demodulated data to the relay control unit.

Preferably, the relay control unit includes an input / output terminal, a calculation module, a memory, and optionally a communication module, an A / D converter, and a microcomputer having a D / A converter function.

The relay power supply unit includes a rectifier circuit for converting the voltage of the commercial AC power to rectify and then convert to a DC power; And all axes storing power output from the rectifier circuit.

The station room system,

A station room power line communication unit performing power line communication with the relay system;

A station room audio input unit for inputting a station attendant's voice;

A station room audio output unit configured to output a voice of a passenger transmitted through the relay system;

A station room switch unit comprising a plurality of switches operated by station personnel to operate an emergency call function;

A station room display unit indicating whether the wireless terminal device is called and an emergency call state;

It is connected between the station room power line communication unit, the station room sound input unit, the station room sound output unit, the station room room switch unit, and the station room display unit, and controls the operation of each unit to perform an emergency call with a wireless terminal device through the relay system. A station room control unit; And,

And a station room power supply unit for supplying power.

Since the station office switch unit is composed of a large number of switches for manipulating the configuration by a call with the calling wireless terminal device, it is preferable that the station room switch is formed by forming a key matrix.

The station office control unit may include an input / output terminal, a calculation module, a memory, and optionally a communication module, an A / D converter, a microcomputer having a D / A converter function, or a computer system.

The station room power line communication unit may include: a station room data transmitter configured to modulate transmission data into a high frequency analog signal and transmit the same to the relay system through a power line; And an office data receiver for receiving a signal transmitted from the relay system through a power line and demodulating the digital signal into a digital signal.

The office room data transmission unit,

A station room modulator for modulating the transmission data output from the station room controller;

A station room amplifier for amplifying the transmission data output from the station room modulator; And,

And a station room transmission interface unit for impedance matching the station room amplifier and the power line.

The station office data receiver,

A stationary reception interface unit configured to perform impedance matching on a power line;

A station room filter unit for filtering the received data output from the station room reception interface unit; And,

And a station room demodulation unit for demodulating the received data output from the station room room filter unit and applying the demodulated data to the station room room control unit.

The relay filter unit and the stationary room filter unit may be configured by combining any one or more selected from among a low pass filter, a high pass filter, or a band pass filter.

For example, it is preferable that the bandpass filter is configured to pass only the power line communication frequency band.

An interface unit (relay transmission interface unit, relay reception interface unit, station room transmission interface unit, station room reception interface unit) for performing impedance matching to a power line, and a modulation unit (relay modulation unit, station room modulation unit) for modulating transmission data; A demodulator (relay demodulator, station room modulator) for demodulating received data, an amplifier (relay amplifier, station room amplifier) for amplifying a signal, and a filter unit (relay filter) for filtering the received signal to a frequency of a specific band The construction and operation of the sub-room filter unit are as well known, and thus detailed description thereof will be omitted.

The station room audio input unit,

MIC; A third amplifier for amplifying a voice signal input through the microphone; And a second A / D converter for converting a voice signal into a digital signal.

The station room audio output unit,

A second D / A converter for converting a digital signal output from the station room control unit into an analog signal; A fourth amplifier for amplifying an audio signal output from the second D / A converter; And a speaker.

Since the configuration and operation of the first to fourth amplifiers for amplifying the applied audio signal are well known, detailed description thereof will be omitted.

The station room display unit may include: a visual display unit visually indicating a calling wireless terminal device; And, it characterized in that it is configured to include an auditory display to indicate whether or not the call.

Preferably, the visual display unit is composed of a plurality of LEDs indicating a wireless terminal device for calling, and the auditory display unit is preferably composed of a buzzer or a speaker for generating a passenger call sound.

When the passenger calls the station operator by operating the terminal switch unit of the radio terminal device installed at the front end of the platform, the station room display unit and the station room switch unit display a call tone indicating that there is a passenger call on the auditory display unit and make a call. When the time display unit (LED), which indicates the wireless terminal device that has called, blinks, the station attendant operates a switch of the station room switch unit representing the wireless terminal apparatus to transmit a voice signal to the corresponding wireless terminal apparatus. Done.

The station office power supply unit includes: a rectifier circuit for converting a voltage of a commercial AC power source into rectifying and converting the DC power source; And a power storage unit configured to store power output from the rectifier circuit.

On the other hand, the present invention "control method of the train platform emergency call system using a wired / wireless communication network,"

A plurality of wireless terminal devices installed at the end of the platform, a station room system installed in the station room, and wireless communication with the plurality of radio terminal devices, and performs a power line communication with the station room system, between the radio terminal device and the station room system In a train platform emergency call system using a wired / wireless communication network comprising one or more relay systems for relaying emergency calls of

The control method of the train platform emergency call system using the wired / wireless communication network,

It is detected whether or not the call button of the wireless terminal device that performs the call with the station attendant has been operated by the passenger. Terminal device signal transmission step;

A wireless terminal device relay step of wirelessly receiving an ID and a passenger voice of the wireless terminal device transmitted by performing the wireless terminal device signal transmission step in a relay system and transmitting the wireless terminal device signal to a station room system through power line communication;

A display step of receiving an ID and a passenger voice of the wireless terminal device transmitted by performing the wireless terminal device relaying step in a station room system to display whether or not the wireless terminal device has been called and to make a call and output a passenger voice;

A station room system signal transmission step of transmitting a voice of a station attendant whose destination is a wireless terminal device designated by the station attendant to the relay system through power line communication after performing the displaying step;

A station room system relay step of receiving the station operator's voice transmitted by performing the station room system signal transmission step from the relay system through power line communication and wirelessly transmitting it to the corresponding wireless terminal device; And,

And a call step of wirelessly receiving and outputting the voice of the station employee transmitted by performing the station room system relaying step by a corresponding wireless terminal device.

When the signal is transmitted to the station room system in the radio terminal device signal transmission step, a specific signal indicating whether the radio terminal device is in normal operation is periodically transmitted to the station room system.

This is to monitor the normal operation of the radio terminal apparatus by detecting whether or not a signal periodically transmitted from the radio terminal apparatus in the station room system.

When transmitting a signal to the wireless terminal device in the station room system signal transmission step, it is characterized by periodically transmitting a specific signal indicating whether the station room system is in normal operation and displaying it on the wireless terminal device.

This is to indicate whether the wireless terminal device is in normal operation (whether there is a communication error) by detecting whether the wireless terminal device receives a signal periodically transmitted from the station room system.

In the present invention configured as described above, the train platform emergency call system using a wired / wireless communication network is constructed by connecting a plurality of terminal apparatuses, a relay system, and a station room system through wireless communication and power line communication to establish an emergency call system. First, it is possible to deal quickly with emergencies, and secondly, it is easy to install and operate, and the installation cost is low. Third, it is possible to conduct a call with different numbers of passengers and different contents for simultaneous emergency situations. It can be effective.

Hereinafter, the technical spirit of the present invention configured as described above "a train platform emergency call system using a wired / wireless communication network and its control method" will be described in detail with reference to Examples.

In this embodiment, 20 wireless terminal devices divided into two wireless groups for each up / down line (or internal / external) platform are installed to form a wireless network through two relay systems, and then the relay system is connected to a power line. The following description will be made by connecting to a station room system through an example.

In the description, since the structure of the up / down line (or internal / external) platform is the same, only one platform will be described.

In addition, in this embodiment, the power supply of the wireless terminal device will be described using self-power generation using solar cell as an example.

In this embodiment, the terminal wireless communication unit of the wireless terminal device and the relay wireless communication unit of the relay system will be described by using Bluetooth as an example.

In addition, in the present embodiment, the wireless terminal device periodically transmits a specific signal indicating whether or not the normal operation of the wireless terminal device in the station room system, as well as whether or not the normal operation in the station room system. By periodically transmitting a specific signal indicating to indicate that the normal operation through the terminal display unit in the wireless terminal system will be described as an example.

In addition, in the present embodiment, the terminal display unit is described as an example consisting of an LED indicating a call state and an LED indicating a normal operation state of the wireless terminal device, and the terminal switch unit is configured as an emergency call button and a guide call button as an example. Explain.

In the present embodiment, the terminal control unit, the relay control unit and the station room control unit are described using an example of a microcomputer.

The reason why the present embodiment is configured as described above is that other embodiments of the inventive concept can be easily seen from the present embodiment.

Hereinafter, the configuration of the present embodiment will be described in detail with reference to the accompanying drawings.

First, as shown in Figure 1, 20 radio terminal devices (100a ~ 100t) is installed at the tip of the platform 7 divided into two radio groups (A, B), the radio terminal device belonging to each group After the two relay systems 200a and 200b which form a wireless communication network are installed, the relay systems 200a and 200b are connected to the station room system 300 through the power line 8 to configure the present embodiment.

As illustrated in FIG. 3, the wireless terminal device 100 includes a terminal voice input unit 110, a terminal switch unit 120, a terminal wireless communication unit 150, a terminal voice output unit 160, and an operation display unit 170. ) Is connected to the terminal control unit 140 to configure.

As shown in FIG. 4, the terminal voice input unit 110 is configured by sequentially connecting the microphone 111, the first amplifier 112, and the first A / D converter 113, and the terminal voice output unit. As shown in FIG. 5, the first 160 is configured by sequentially connecting the first D / A converter 161, the second amplifier 162, and the speaker 163.

As shown in FIG. 6, the terminal power supply unit 130 supplying operating power to the wireless terminal device 100 includes a solar cell 131a, a rectifier circuit 131b, and a charging circuit 131c. The storage battery 132 is connected to the output terminal of the power generation means 131.

As illustrated in FIG. 7, the relay system 200 is configured by connecting the relay wireless communication unit 210 and the relay power line communication unit 230 to the relay control unit 220.

As illustrated in FIG. 8, the relay power line communication unit 230 is configured by connecting the relay data receiver 231 and the relay data transmitter 232 between the power line 8 and the relay controller 220.

The relay data receiving unit 231 sequentially connects the relay receiving interface unit 231c, the relay filter unit 231b, and the relay demodulation unit 231a connected to the power line 8, and then repeats the relay demodulation unit 231a. The output terminal of the control unit 220 is connected to the relay controller 220, and the relay data transmitter 232 is configured between the relay controller 220 and the power line 8, the relay modulator 232a, the relay amplifier 232b, and the relay transmission interface. The serial port 232c is sequentially connected.

Relay power supply unit 240 for supplying the operating power to the relay system 200, the power storage unit (not shown) consisting of a battery in the rectifier circuit (not shown) output terminal for converting the voltage of the commercial AC power to rectify and then convert to DC power Connect to the system.

9, the station room audio input unit 310, the station room switch unit 320, the station room power line communication unit 340, the station room audio output unit 360, and the station room room display unit 370, as shown in FIG. The station room control unit 350 is connected between the terminals.

As shown in FIG. 11, the station room audio input unit 310 is configured by sequentially connecting the microphone 311, the third amplifier 312, and the second A / D converter 313, and the station room audio output unit. 12, the second D / A converter 361, the fourth amplifier 362 and the speaker 363 are sequentially connected.

As shown in FIG. 10, the station room power line communication unit 230 connects the station room data receiver 431 and the station room data transmitter 432 between the power line 8 and the station room control unit 350. As shown in FIG.

The station room data receiving unit 431 sequentially connects the station room receiving interface 431c, the station room filter unit 431b, and the station room demodulation unit 431a connected to the power line 8, and then the station room demodulation unit 431a. And the output stage of the control room control unit 420, and the station control room data transmission unit 432 is between the station control room 420 and the power line 8, the station room modulator 432a, the station room amplification unit 432b and the station room transmission interface. The 432c is sequentially connected and configured.

The station office display unit 372 includes a visual display unit 371 and an auditory display unit 372.

Hereinafter, the operation and the effect of the present embodiment configured as described above with reference to the accompanying drawings as follows.

First, as shown in FIG. 16, the terminal controller 140 performs the wireless terminal device signal transmission step (S100) so that call buttons 121 and 122 of the wireless terminal device 100 performing a call with a station attendant are provided. When it is determined whether the call button 121 or 122 is operated by detecting whether the call is operated by the passenger, the ID of the corresponding wireless terminal device and the voice of the passenger are wirelessly transmitted to the relay system 200.

That is, when the passenger located in the platform presses the emergency call button 121 or the guide call button 122 to input a voice for calling the station attendant, the terminal controller 140 detects the voice call and presses the call buttons 121 and 122. The relay system 200 transmits a signal and a voice indicating that the signal is lost through wireless communication.

At this time, the ID indicating the corresponding wireless terminal device is sent out so that the station office room 300 knows the wireless terminal device calling the station attendant.

Meanwhile, the relay control unit 220 of the relay system 200 wirelessly receives the ID and the passenger's voice of the wireless terminal device transmitted by performing the wireless terminal device signal transmission step (S100) and transmits the station office system 300 through the power line. The wireless terminal device relaying step S200 is performed.

That is, the terminal wireless communication unit 150 receives the signal transmitted through the relay wireless communication unit 210 and transmits to the station room system 300 through the relay data transmitter 232.

Then, the station room control unit 220 performs the display step (S300) to perform the wireless terminal device relay step (S200) to receive the ID and the passenger voice of the transmitted wireless terminal device, whether or not to make a call and the wireless terminal It will display the device and output the passenger's voice.

That is, when it is determined that the emergency call button 121 is pressed by detecting which of the call buttons 121 and 122 of the wireless terminal device 100 is pressed, the LED 371a indicating this is turned on and guided. If it is determined that the call button 122 is pressed, the LED 371b indicating the light is turned on to indicate that the call is an emergency call. Alternatively, it indicates whether or not it is a guide call and simultaneously turns on a corresponding LED among a plurality of LEDs 371 representing each of the wireless terminal devices installed in the platform to show the wireless terminal device that has made a call (FIG. 13).

At this time, the passenger's voice transmitted from the wireless terminal device 100 is output through the station room audio output unit 360.

After performing the display step (S300), the station room control unit 220 waits for the station operator to transmit the station operator's voice to the relay system 200 through the power line. The system signal transmission step (S400) is performed.

When the station attendant inputs the voice through the station room audio input unit 310, when there is only one radio terminal device calling the station attendant, the voice is transmitted to the destination and when there are two or more radio terminal devices calling the station attendant. The voice is transmitted to the designated wireless terminal device through the station office switch unit 320 as a destination, so that it is possible to talk with a plurality of passengers at the same time.

In Fig. 13, reference numerals 320 and 371 denote a station room switch unit and a time display section for showing the operation and operation of the radio terminal apparatus installed in the station boarding point (or the uplink boarding point), (320 '), (371'). ) Denotes a station room switch unit and a time display unit for operation and operation of a wireless terminal device installed in an external landing platform (downline platform), and (311) and (311 ') are microphones, (362) and (362') Represent each speaker.

On the other hand, the relay control unit 220, the station room system signal transmission step (S400) performs the station room system relay step (S500) for receiving and transmitting the voice of the station attendant transmitted to the wireless terminal device.

Then, the terminal control unit 140 of the wireless terminal device performs the call step (S600) for receiving the voice of the station attendant transmitted by performing the station room system relay step (S500) and outputting it through the terminal voice output unit (160). By repeating the above process, a call is made between the passenger located in the platform and the station attendant located in the station office.

In other words, when a passenger located in the platform has an emergency situation and operates the emergency call button 121 or the guide call button 122 and inputs a voice through the terminal voice input unit 110, the terminal control unit 140 Received at) to be wirelessly transmitted to the relay system 200 through the terminal wireless communication unit 150, then, the relay wireless communication unit 210 of the relay system 200 receives the relay power line communication unit 230 By transmitting to the station room system 300 through the station room display unit 370 to indicate the presence and type of call and at the same time outputs the passenger's voice through the station room sound output unit 360.

Thereafter, the station attendant responds by outputting the station attendant's voice through the terminal voice output unit 160 of the wireless terminal device in reverse by performing the signal transmission process. Will be done.

15A is a view showing an example in which the wireless terminal device 100 is installed in the screen door 9, and FIG. 15B is a view showing the wireless terminal device 100 mounted in the safety fence 10. As shown in FIG.

The wireless terminal device 100 may be installed by installing a separate support (not shown) in addition to the screen door 9 or the safety fence 10.

On the other hand, apart from performing the emergency call process, the wireless terminal device 100 transmits a specific signal (for example, "11000011") to the station room system 300 periodically (for example, 10 seconds) to the wireless terminal device. Monitor the normal operation of the station in the station room.

The non-explanatory symbol 371c of FIG. 13 indicates that the specific signal indicating whether the wireless terminal device is operating normally is not recognized so that a predetermined time (for example, 30 seconds) has elapsed so as to recognize it as a failure of the corresponding wireless terminal device. The indicator is shown.

When the failure indicator 371c is turned on, the corresponding LED of the time display unit 371 indicating the wireless terminal device which does not receive the specific signal is also lit so that the station attendant can easily recognize the failed wireless terminal device. .

Similarly, the station office system 300 transmits a specific signal (for example, "00111100") indicating whether or not the normal operation of the radio terminal device to indicate whether or not the normal operation of the radio terminal device.

Reference numeral 172 in FIG. 14 denotes an LED indicating a normal state, and 171 denotes an LED indicating that a call is being made with the station office system.

1 is a configuration diagram showing the configuration of the present invention "train station emergency call system using a wired / wireless communication network,"

2 is a front view showing the configuration of a conventional emergency call device;

3 is a block diagram showing the configuration of a wireless terminal device of the present invention;

4 is a block diagram showing an example of a configuration of a terminal voice input unit of a wireless terminal device according to the present invention;

5 is a block diagram showing an example of a configuration of a terminal voice output unit of the wireless terminal device according to the present invention;

6 is a block diagram showing an example of a configuration of a terminal voice input unit of a wireless terminal device according to the present invention;

7 is a block diagram showing the configuration of a relay system of the present invention;

8 is a view showing the configuration of a relay power line communication unit of the relay system of the present invention;

9 is a block diagram showing the configuration of a station room system in the present invention;

10 is a view showing the configuration of the station room power line communication unit of the station room system of the present invention;

11 is a block diagram showing the configuration of the station room audio input unit of the station room system according to the present invention;

12 is a block diagram showing the configuration of the station room audio output unit of the station room system according to the present invention;

Figure 13 is a perspective view showing an example of the configuration of the station room system of the present invention,

14 is a configuration diagram showing an example of the configuration of a wireless terminal device of the present invention;

Figure 15a is a view showing an installation example of a wireless terminal device of the present invention,

Figure 15b is a view showing another installation example of the wireless terminal device of the present invention,

FIG. 16 is a control flowchart illustrating a control method of a train platform emergency call system using a wired / wireless communication network. FIG.

Explanation of symbols on the main parts of the drawings

100: terminal wireless device 110: terminal voice input unit

120: terminal switch unit 130: terminal power supply unit

140: terminal control unit 150: terminal wireless communication unit

160: terminal audio output unit 170: terminal display unit

200: station room system 210: relay wireless communication unit

220: relay control unit 230: relay power line communication unit

231: relay data receiver 232: relay data transmitter

300: station room system 310: station room audio input unit

320: station office switch unit 330: station office power supply

340: station office power line communication unit 341: station office data receiver

342: station office data transmission unit 350: station office room control unit

360: station room sound output unit 370: station room room display unit

371: time display unit 372: auditory display unit

S100: wireless terminal device signal transmission step S200: wireless terminal device relaying step

S300: display step S400: station room system signal transmission step

S500: Station room system relay step S600: Call step

Claims (22)

A plurality of wireless terminal devices installed at the end of the platform along the track and performing wireless communication with the relay system to provide a wireless emergency call with a station attendant to a passenger located at the platform; A station room system that is installed in the station room and performs power line communication with one or more relay systems to provide emergency calls with one or more passengers to station workers located in the station room; And, One or more relays installed between the radio terminal device and the station room system to perform radio communication with the plurality of radio terminal devices and to perform power line communication with the station room system, thereby relaying an emergency call between the radio terminal device and the station room system. Train platform emergency call system using a wired / wireless communication network, characterized in that configured to include. The train platform emergency call system using a wired / wireless communication network according to claim 1, wherein the wireless terminal device periodically transmits a signal indicating normal operation of the wireless terminal device. The train platform emergency call system using a wired / wireless communication network according to claim 1, wherein the station office system periodically transmits a signal indicating normal operation of the station office system. According to claim 1, The wireless terminal device, the train platform emergency call system using a wired / wireless communication network, characterized in that receiving a signal indicating the normal operation of the station office system to determine whether there is a communication line abnormality with the station office system. . According to claim 1, The station office system, the train platform emergency call system using a wired / wireless communication network, characterized in that receiving a signal indicating the normal operation of the wireless terminal device to determine whether there is a communication line abnormality with the station office system. . According to claim 1, The wireless terminal device, Terminal switch unit consisting of one or more switches operated by the passenger, for operating the emergency call function; Terminal voice input unit for inputting the voice of the passenger; A terminal voice output unit configured to output a voice of a station attendant transmitted through the relay system; A terminal display unit indicating an operation state of the wireless terminal device; A terminal wireless communication unit performing wireless communication with the relay system; It is connected between the terminal switch unit, the terminal voice input unit, the terminal voice output unit, the terminal display unit, and the terminal wireless communication unit to control the operation of each unit to make an emergency call with the station room system through the relay system. Terminal control unit; And, Terminal power supply unit for supplying power; train platform emergency call system using a wired / wireless communication network comprising a. The method of claim 6, wherein the terminal voice input unit, MIC; A first amplifier for amplifying a voice signal input through the microphone; And a first A / D converter for converting a voice signal into a digital signal. The method of claim 6, wherein the terminal audio output unit, A first D / A converter converting the digital signal output from the terminal controller into an analog signal; A second amplifier for amplifying an audio signal output from the first D / A converter; And, a speaker; a train platform emergency call system using a wired / wireless communication network, comprising: a speaker. 7. The apparatus of claim 6, wherein the power supply unit comprises: self-generation means for converting light energy into electrical energy; And a power storage unit configured to store electricity generated by the self-power generation means. 10. The apparatus of claim 9, wherein the self-powering means comprises: solar power; A rectifier circuit converting the AC power generated in the solar cell into a DC power source; And a charging circuit for converting the power output from the rectifying circuit into the charging voltage of the storage battery. The method of claim 1, wherein the relay system, A relay wireless communication unit performing wireless communication with a plurality of wireless terminal devices; A relay power line communication unit performing power line communication with the station office system; A relay control unit connected between the relay wireless communication unit and the relay power line communication unit to relay communication between the wireless terminal device and a station room system; And, A train platform emergency call system using a wired / wireless communication network, comprising: a relay power supply unit for supplying power. The apparatus of claim 11, wherein the relay power line communication unit comprises: a relay data transmitter configured to modulate transmission data into an analog signal of high frequency and transmit the transmission data to the station room system through a power line; And a relay data receiver configured to receive a signal transmitted from the station room system through a power line, demodulate it into a digital signal, and apply the demodulated signal to the relay control unit. The method of claim 12, wherein the relay data transmission unit, A relay modulator for modulating the transmission data output from the relay controller; A relay amplifier for amplifying the transmission data output from the relay modulator; And, A train platform emergency call system using a wired / wireless communication network, characterized in that it comprises a; relay transmission interface unit for impedance matching the relay amplifier and the power line. The method of claim 12, wherein the relay data receiving unit, A relay receiving interface unit for impedance matching the power line; A relay filter for filtering the received data output from the relay receiving interface unit; And, And a demodulation unit configured to demodulate the received data output from the relay filter unit and apply the demodulated data to the relay control unit. 2. The train platform emergency call system using a wired / wireless communication network. According to claim 1, The station office system, A station room power line communication unit performing power line communication with the relay system; A station room audio input unit for inputting a station attendant's voice; A station room audio output unit configured to output a voice of a passenger transmitted through the relay system; A station room switch unit consisting of a plurality of switches operated by station personnel to operate an emergency call function; A station room display unit indicating whether the wireless terminal device is called and an emergency call state; It is connected between the station room power line communication unit, the station room sound input unit, the station room sound output unit, the station room room switch unit, and the station room display unit, and controls the operation of each unit to perform an emergency call with a wireless terminal device through the relay system. A station room control unit; And, Train station emergency call system using a wired / wireless communication network, characterized in that comprises a; station office room power supply unit for supplying power. 16. The apparatus of claim 15, wherein the station room power line communication unit comprises: a station room data transmission unit for modulating transmission data into an analog signal of high frequency and transmitting the power station to the relay system through a power line; And a station office data receiver which receives a signal transmitted from the relay system through a power line and demodulates the digital signal into a digital signal. 2. The train platform emergency call system using a wired / wireless communication network. 17. The method of claim 16, wherein the office data transmission unit, A station room modulator for modulating the transmission data output from the station room controller; A station room amplifier for amplifying the transmission data output from the station room modulator; And, A train station emergency call system using a wired / wireless communication network, comprising: a station office transmission interface unit for impedance matching the station office amplifier and a power line. The method of claim 16, wherein the office data receiving unit, A stationary reception interface unit configured to perform impedance matching on a power line; A station room filter unit for filtering the received data output from the station room reception interface unit; And, Train station emergency call system using a wired / wireless communication network, characterized in that it comprises a; a station office demodulation unit for demodulating the received data output from the station office room filter unit applied to the station office room control unit. 16. The apparatus of claim 15, wherein the station room display unit comprises: a visual display unit visually indicating a calling wireless terminal device; And, an audible display unit that shows whether the call is audible or not. A train platform emergency call system using a wired / wireless communication network, characterized in that it comprises a. A plurality of wireless terminal devices installed at the end of the platform, a station room system installed in the station room, and wireless communication with the plurality of radio terminal devices, and performs a power line communication with the station room system, between the radio terminal device and the station room system In a train platform emergency call system using a wired / wireless communication network comprising one or more relay systems for relaying emergency calls, The control method of the train platform emergency call system using the wired / wireless communication network, It is detected whether or not the call button of the wireless terminal device that performs the call with the station attendant has been operated by the passenger. Terminal device signal transmission step; A wireless terminal device relay step of wirelessly receiving an ID and a passenger voice of the wireless terminal device transmitted by performing the wireless terminal device signal transmission step in a relay system and transmitting the wireless terminal device signal to a station room system through power line communication; A display step of receiving an ID and a passenger voice of the wireless terminal device transmitted by performing the wireless terminal device relaying step in a station room system to display whether or not the wireless terminal device has been called and to make a call and output a passenger voice; A station room system signal transmission step of transmitting a voice of a station attendant whose destination is a wireless terminal device designated by the station attendant to the relay system through power line communication after performing the displaying step; A station room system relay step of receiving the station operator's voice transmitted by performing the station room system signal transmission step from the relay system through power line communication and wirelessly transmitting it to the corresponding wireless terminal device; And, And a call step of wirelessly receiving and outputting the voice of a station employee transmitted by performing the station room system relaying step in a corresponding wireless terminal device. 2. The control method of a train platform emergency call system using a wired / wireless communication network. 21. The wired / wireless wireless system according to claim 20, wherein when a signal is transmitted to the station room system in the signal transmission step of the radio terminal device, a specific signal indicating whether the radio terminal device is normally operated is periodically transmitted to the station room system. Control method of train platform emergency call system using communication network. 21. The method of claim 20, wherein when the signal is transmitted to the wireless terminal device in the station room system signal transmission step, a specific signal indicating whether the station room system is normally operated is periodically transmitted to the wireless terminal device. Control method of train platform emergency call system using communication network.

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