KR100428020B1 - A Real Time Monitoring System of Electric Train - Google Patents

Abstract

PURPOSE: A real time monitoring system is provided to prevent accidents and damages by mounting sensors and cameras in a station office, an operator's cab, and a passenger's cab in such a manner that the sensors and cameras are interlocked with each other. CONSTITUTION: A real time monitoring system comprises a sensor unit(102) mounted in a station office, an operator's cab, and a passenger's cab in such a manner that the sensor unit senses smoke or heat; a camera unit(103) mounted in the station office, operator's cab, and the passenger's cab in such a manner that the camera unit monitors passengers in the station and passenger cab and the operator's cab; a picture transmitting server(105) for transmitting, through an RF transmitting/receiving unit(104), the picture data taken by the camera unit, and receiving, through the RF transmitting/receiving unit, the picture data taken by the camera unit; a controller(107) for displaying the picture data received from the picture transmitting server on a display(106) of a preset address when the picture data are received at the picture transmitting server; and a data communication unit for transmitting/receiving, through a network, the signal and picture data generated by the control of the controller to/from a control center. The sensor unit is connected to the controller, and constituted by a smoke sensor(102a) or a heat sensor(102b) which senses heat or smoke and transmits a signal to the controller.

Description

A Real Time Monitoring System of Electric Train

The present invention relates to a real-time monitoring system of an electric vehicle. In particular, the general command room can monitor the history, cabin, driver's cab, etc., and the audio and video data can be transferred to the predetermined display unit through the wired / wireless communication infrastructure in case of an emergency during monitoring through the emergency signal and display unit of the sensor unit installed at a predetermined position. By transmitting and pop-up (POP UP), real-time monitoring of the electric vehicle that can minimize the human and material damages by the situation report in real time by the triangular monitoring system of the cab, history, general command room It's about the system.

In general, electric vehicles are a means of transporting a large number of passengers and are caused by large accidents during an accident.

In order to prevent the accident of the electric vehicle as described above, a number of devices have been developed and applied, but many problems have arisen.

For example, a camera and monitor can be installed around the platform with alarms and announcements to inform the entry and departure of the vehicle, or separate safety personnel can be used to prevent accidents. Although fully committed, passengers' carelessness or other unforeseen reasons may cause the passenger to fall on the platform track, or to be caught in a gap in the vehicle or in the gap between the vehicle and the platform.

If such an accident does not spread to the general command room, the station room, or the cab of the train in operation, it may cause another accident due to the lack of prompt action. Fire events are large events that awaken the need for rapid accident propagation.

As described above, in the case of an accident or emergency situation, the general command room is quickly spread to the general command room, and the general command room must again propagate a prompt solution suitable for the situation to each station and the driver's cab. As a result of the accident spreading through the general command center after a certain time has passed since the accident occurred, the seriousness of the accident situation and the corresponding measures are followed, and it takes a lot of time to follow up. There was a difficulty to avoid.

In other words, the manager of the general command room that controls electric cars has inconveniences and hassles in managing electric cars efficiently even if he / she commands an accident propagation and prompt action. Not only does it minimize the damage, but also because of the problems of the conventionally implemented devices, the reliability and satisfaction of the use is very low because there is a limit to the effective use of this equipment by the driver of the electric vehicle or the general command center controlling it. Problems are present.

The present invention has been made in order to solve the above problems, an object of the present invention is to provide a triangular monitoring system that is a multi-faceted monitoring system by interlocking by installing a sensor and a camera in the position to be monitored, such as the station, cab, cabin.

In addition, when an emergency occurs, it can propagate the situation by interruption from the location to the general command room as well as the relevant departments and the cab, thus minimizing foreseeable accidents and minimizing human and material damage. The purpose is to provide a real-time monitoring system.

1 is an internal block diagram illustrating an internal flow of a cab.

2 is an internal block diagram showing the internal flow of the working room.

3 is a block diagram schematically showing an RF transmitter and receiver.

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

101: general command room 102: sensor

103: camera unit 104: RF transmission and reception unit

105: video transmission server 106: display unit

107: controller 108: data communication unit

109: channel automatic selector 110: alarm generator

111: image processing unit 112: key input unit

In order to achieve the above object, the configuration of the present invention, the sensor unit 102 is installed at a predetermined position of the history and inside the cabin and the cab; A camera unit 103 installed at predetermined positions of the history, the cabin, and the cab to monitor passengers in the history and the cabin, and to monitor the cab; Image transmission server 105 for transmitting the image data photographed from the camera unit 103 through the RF transmission and reception unit 104 or for transmitting and receiving image data photographed from the remote camera unit 103 through the RF transmission and reception unit 104. )Wow; A controller 107 which controls to display the image data received from the image transmission server 105 to the display unit 106 at a predetermined address when the image data is received by the image transmission server 105; And a data communication unit 108 configured to transmit and receive signals and image data generated by the control of the controller 107 with the general command room 101 through a network network, and the sensor unit 102 includes the controller 107. A smoke detector 102a connected to the smoke detector and configured to detect smoke and transmit a predetermined signal to the controller 107; One of the heat detectors 102b is configured to sense heat and transmit a predetermined signal to the controller 107.

The apparatus may further include a channel automatic selection unit 109 for transmitting and receiving image data transmitted and received from the image transmission server 105 to a predetermined channel.

In addition, the controller 107 generates an alarm by controlling the alarm generating unit 110 when an emergency signal is detected from the sensor unit 102 and is transmitted from the camera unit 103 located in the corresponding sensor unit 102. It is preferable to control the image transmission server 105 so that image data is transmitted through a predetermined channel.

Hereinafter, the present invention will be described with reference to the accompanying drawings, FIGS. 1 to 3.

First, at least one heat detector 102b configured to detect heat in a fire and at least one smoke detector 102a configured to detect smoke in each station, cabin, and cab is provided. The heat detector 102b and the smoke detector are provided. 102a will be referred to as sensor unit 102 below.

The sensor unit 102 is electrically connected to the controller 107 as shown in FIGS. 1 and 2 so that the signal sensed by the sensor unit 102 is transmitted to the controller 107.

In addition, the camera unit 103 is also installed in each of the history and the cabin and the cab so that the department can observe at all times, the image data photographed by the camera unit 103 is a known image processing unit 111 Is converted into digital data and compressed and transmitted to the image transmission server 105.

In addition, the image transmission server 105 transmits the received data to the controller 107 and the RF transmitter / receiver 104, wherein the controller 107 has a jurisdiction display unit (eg, a station, cab, or general command room 101). 106 to be displayed in real time by being transmitted to the display, the RF transmitter and receiver 104 transmits the image data to the channel set by the channel automatic selection unit 109.

Accordingly, the image data transmitted to the RF transmitter / receiver 104 is received in a predetermined channel in the channel automatic selection unit 109 of the remote RF transmitter / receiver 104 and is controlled by the controller 107 through the image transmission server 105. The remote RF transmitter / receiver 104, the image transmission server 105 and the controller 107 may be mounted on a remote electric vehicle that is currently operating, and may be a remote station or general command room 101. It may be, it may be variable according to the channel setting of the channel automatic selection unit 109 installed in each station, the cab.

The duplexer 120 of the RF transmitter / receiver 104 performs a function of separating and passing a transmission / reception frequency as a bandpass filter using microwave dielectric phase dielectric properties. In other words, the duplexer is an RF component that separates transmission and reception frequencies to pass frequencies of a desired band, and filters out only necessary radio waves and removes unnecessary ones.

Compared with other filters, duplexers have the advantage of high separation to size and excellent stability against temperature changes at high frequencies.

The signal received through the transceiver antenna 121 is switched through the transceiver_duplexer 120 and then received by the receiver 123 and transmitted to the transceiver_CPU 124. The receiver 123 includes an RF amplifier 125, an RF filter 126, an oscillator 127, a filter 128, a mixer 129, a surface acoustic wave (SAW) filter 130, an amplifier 131, and an IF IC ( 132).

The RF amplifier 125 constituting the receiver 123 is amplified to improve the reception strength of the radio signal input through the antenna 121 for transmission and reception, and the RF filter 126 is amplified by the RF amplifier 125. The filtered signal passes only frequencies of a certain band and filters out other frequencies.

The mixer 129 mixes the frequency filtered by the RF filter 126 and the frequency filtered by the filter 128 to convert to a constant intermediate frequency, and the SAW filter 130 specifies a specific frequency among the intermediate frequencies generated by the mixer 129. Passes only the frequencies of the band to eliminate crosstalk and noise.

The amplifier 131 amplifies the intermediate frequency filtered between the SAW filters 130, and the intermediate frequency IC 132 demodulates the intermediate frequency amplified by the amplifier to the original transmission frequency and converts it into a processable digital signal.

Here, the RF amplifier 125 is preferably designed to operate even if the performance is reduced when a part of the circuit including the active element, the oscillator 127 should be sufficient and stable oscillation output, It is desirable to implement a low frequency content and simplify frequency adjustment.

In addition, the amplifier 131 for amplifying the intermediate frequency may allow the designer to amplify the intermediate frequency high or low, depending on the device to be implemented. Higher amplification of the intermediate frequency improves the effects of the incoming phenomenon and improves the transmission band frequency characteristics, while low amplification of the intermediate frequency improves sensitivity and stability, facilitates single adjustment, There is an advantage that the selectivity is improved.

Meanwhile, the transmitter 140 includes an oscillator (OSC) 141, a phase locked loop (PLL: 142), a loop filter 143, a voltage controlled oscillator (VCO: 144), and a power amplifier (PA: 145). have. At this time, the signal transmitted to the outside through the transmitter 140 is switched through the transceiver_duplexer 120 and then transmitted through the antenna 121 for transmission and reception.

The oscillator constituting the transmitter 140 is for generating a stable reference frequency (eg, 400 MHz), and the PLL 142 generates a predetermined frequency using the reference frequency generated by the oscillator 141 and if the frequency is high or low If not, subtract or add the frequency so that there is no frequency change.

The loop filter 143 filters the frequency synthesized in the PLL 142 to minimize phase error, generates a precise variable frequency in the VCO 144, and the PA 145 uses the frequency generated in the VCO 144. Amplifies and outputs a signal with a constant amplitude to improve transmission efficiency.

In addition, the transmitter 140 feeds an output terminal of the VCO 144 back to the PLL 142 so that an error free frequency is generated. Here, when configuring the PA 145, in order to prevent the modulation of the waveform, the offset voltage and the gain coefficient should be adjusted using a general amplifier.

If the amplitude of the signal having a different amplitude is determined to be on / off with the same offset, the duty ratio may be changed and the waveform may be modulated. Therefore, it is necessary to adjust the offset voltage and the gain coefficient.

In addition, descriptions of the transceiver-power supply unit, the switch unit, and the battery exchange display unit, which are general components of the drawings, are omitted since they are conventional techniques.

On the other hand, the controller 107 is connected to the network by the data communication unit 108, and thus the general command room 101 can transmit and receive video, voice, and text data through the network, the general command room ( It is also possible to receive the instruction and the current situation from 101).

Therefore, normally, the image data transmitted from the camera unit 103 installed in the service area for each of the station office, the cab, and the general command room 101 is displayed on the display unit 106 through the image transmission server 105 and the controller 107. When the smoke or heat is detected through the sensor unit 102 and a predetermined signal is transmitted to the controller 107, the controller 107 generates an alarm through the alarm generating unit 110, and the address of the corresponding sensor. The image data captured by the camera unit 103 corresponding to the pop-up (POP UP) to the display unit 106 to display a warning to the monitor.

In addition, the controller 107 transmits the image data popped up on the display unit 106 to the RF transmitter / receiver unit 104 through the image transmission server 105. In step 109, since the transmission channel is selected, the RF transmitter / receiver 104 transmits the image data through the preset channel.

In addition, the controller 107 transmits the image data to the general command room 101 by using a network through the data communication unit 108 so that the corresponding image data may be popped up on the display unit 106 of the general command room 101. So that the ACS can take action quickly.

That is, when a fire breaks out in the cabin of a train that is stopped in history, a predetermined signal is transmitted to the controller 107 of the cab by the smoke detector 102a and the heat detector 102b. The image data photographed by the camera unit 103 installed at the corresponding position is popped up on the display unit 106 and the emergency situation is propagated to the driver through the alarm generating unit 110.

On the other hand, when the controller 107 detects an emergency situation as described above, through the image transmission server 105 transmits the image data to the predetermined channel to the RF transmitter and receiver 104.

Accordingly, an electric vehicle or a station room operating in the vicinity receives the image data by the RF transmitter / receiver unit 104 and transmits the image data to the image transmission server 105, and the image data transmitted to the image transmission server 105 is transmitted to the controller 107. By popping up to the display unit 106 by the control, it is possible to monitor the accident occurrence area and the accident situation in real time by the triangular monitoring system of the cab, the history, and the general command room before the procurement measures are transmitted from the general command room 101. Emergency action can be taken by stopping the train or communicating with another adjacent train.

And, if there is an impure passenger in the cabin, the driver's cab, the station office checks the operation of the keypad shown in the controller 107 to the image data taken by the camera unit 103, the image transmission server 105 and the RF transmitter and receiver 104 By transmitting to the general command room 101, the driver's cab, the station, etc., the pop-up on the display unit 106 enables safe and quick action.

In addition, since the data communication unit 108 is capable of 1: 1 communication as well as 1: N communication through a network, the general command room 101 receives real-time data by wire / wireless from a remote station or cab. In addition, the manager of the general command room 101 continuously controls the electric vehicle through the above-mentioned two-way wired and wireless communication, and then, when a sudden accident such as a driver accident, a history, a cabin, etc. occurs, In order to cope, it is possible to remote control in case of emergency to control devices such as doors and emergency braking of electric cars.

In addition, the driver of the electric vehicle is able to cope with the danger from the danger by automatically displaying the historical situation of the traveling direction in the moving picture 2 to 3 km ahead through the cab display unit 106 in real time.

Reference numeral 112 in the figure shows a conventional key input unit for controlling the controller 107.

As described above, according to the present invention, the monitoring system assigned to each of the general command room, the station office, and the cab can monitor the inside of the station office, the inside of the station, the inside of the cabin, the inside of the cab, and the like.

In addition, in the event of a sudden situation, the sensor, controller, and warning unit can promptly display warning and triangular monitoring system through the image transmission server. It is effective in minimizing human and material damage and damage by enabling quick response.

In addition, in the general command room that receives and controls all situations, the point of occurrence pops up on the display unit from the remote camera unit at the time of occurrence of the situation, so that the situation can be detected quickly.

Therefore, in the cab, all rooms are monitored in real time by the camera unit, and the sensor unit and the camera unit can be quickly responded to the occurrence of a bar situation, and the station of the station to be stopped can be monitored in advance.

The station office and the cab are always monitored and wirelessly communicated, so the station office can receive real-time monitoring and history of all the train rooms to stop.

The general command room can monitor the cab and station room in real time, and in case of emergency, the corresponding screen pops up with a warning, so that the time and location of the accident can be quickly identified, and there is a big advantage to directly command the engineer.

Claims (4)

In the real-time monitoring system of the electric vehicle, A sensor unit installed at a predetermined position in the history and inside the cabin and a cab to detect smoke or heat; A camera unit installed at predetermined positions of the history, the cabin, and the cab to monitor passengers in the history and the cabin, and to monitor the cab; An image transmission server for transmitting the image data photographed from the camera unit through an RF transmitter and receiver or for receiving the image data photographed from a remote camera unit through an RF transmitter and receiver; A controller for controlling to display the image data received from the image transmission server to the display unit at a predetermined address when the image data is received by the image transmission server; It includes a data communication unit for transmitting and receiving signals and video data generated by the control of the controller and the general command room via a network, The sensor unit is connected to the controller, the smoke detector for detecting the smoke to transmit a predetermined signal to the controller and the heat detector for detecting the heat and transmitting a predetermined signal to the controller real time Monitoring system. delete The method of claim 1, And a channel automatic selection unit for transmitting and receiving image data transmitted and received from the image transmission server through a predetermined channel. The method of claim 1, The controller generates an alarm by controlling an alarm generator when an emergency signal is detected from the sensor unit, and controls an image transmission server through which image data transmitted from a camera unit located in the sensor unit is transmitted through a preset channel. Real-time monitoring system of electric vehicles.