KR20040006079A - Automatic blocking controll system for train - Google Patents

Abstract

PURPOSE: An automatic blocking control system for a train is provided to control a traveling state of the train by monitoring and controlling each operating state of a block signal, a block track circuit, and an ATS(Automatic Train control System). CONSTITUTION: An automatic blocking control system for a train includes a power module(100), a CPU module(110), an input module(120), an output module(130), an information transmission module(140), a track detection module(150), and a monitoring panel(160). The power module(100) supplies the power to the modules. The CPU module(110) controls operations of the modules. The input module(120) receives the information about operating states of a track relay, a power supply, and the modules. The output module(130) controls and monitors the outputs of the operating states of a block signal, an ATS, and the modules. The information transmission module(140) transmits the information about the adjacent stations. The track detection module(150) detects a state of track. The monitoring panel(160) displays the operating states of the modules.

Description

Automatic Blocking Control System for Railway Vehicles {AUTOMATIC BLOCKING CONTROLL SYSTEM FOR TRAIN}

The present invention relates to an automatic occlusion control system for railway vehicles, and in particular, configured to control and display an occlusion signal, an occlusion track circuit, an ATS (Automatic Train Control System) device, and operate an occlusion signal, an occlusion track circuit, and a railroad crossing security device. The present invention relates to an automatic occlusion control system for railway vehicles that monitors state information at adjacent stations to control the operating state of railway vehicles on railroad tracks.

In general, the occlusion system (閉 塞) is used for the operation of railroad cars. Railroad trains operate on the same track, so there is a risk of collision or collision between trains. In order to prevent accidents and to ensure the safety of train operation, a proper section is made on the track to drive only one train per section. The section is called the occlusion section and the act of releasing the occlusion is called occlusion handling, and all procedures and methods are called occlusion.

There are various types of occlusion methods, which are classified into two types of commercial occlusion methods and commercial occlusion methods, and they cannot be used due to accidents or other unavoidable uses. There is an obstruction method (준 用法) used when.

Commercial occlusion system is fixed occlusion in one section and is normally used normally, and there are automatic occlusion, interlocking, general occlusion, and bilateral occlusion. Among them, automatic, interlocking and duplex expressions are used for the redundant line operation section, and automatic, interlocking, and passing expressions are used for the disconnection operation section.

The surrogate occlusion method is a occlusion method that is used temporarily until the cause is eliminated when the occlusion section becomes unusable due to a change in the occlusion section or the failure of some devices. This method is extremely low in security, so the use time should be reduced to a minimum. Representative methods used by KORAIL include communication and map communication, and there are maps that are implemented in special cases.

The obstruction method is a quasi-occlusive method that is used when a normal occlusion method cannot be used between two stations due to an accident or other special circumstances. This is usually the case when you can't communicate with the other station when you don't make a phone call. There are two types of trains, the ephemeral law and the airway espionage. There is also.

In order to operate such a block system smoothly, a signal system is required. Signaling system on railroads refers to facilities for increasing the safety and efficiency of train operation for the construction of rapid human and physical transportation systems. This signal control system improves the operating efficiency of trains, train centralized control system that remotely controls and monitors the safe operation and signal control system of trains, speed control of trains, securing safety distance between trains, and detecting the occupancy of trains on tracks. The automatic train control system to perform the operation, and the linkage system that is finally responsible for the train setting and the safe operation of the train.

The train control includes various devices for controlling the speed, the course and the crossing of the train in order to safely and efficiently operate the driving of the train according to the operation plan. In order to perform such control, the most important thing is speed control and position detection of the train, and the position detection of the train is detected by the track circuit. Recently, transponders have been used to detect the location of trains when they pass through the ground, but the train locations required for control of train intervals and train switching are dependent on ground sensors such as track circuits.

The speed is generally detected by the speedometer through the axle using the tachometer.However, the speed of the train on the ground when the train passes between fixed points is used for some ATS and crossing time control. A method of measuring the speed of a train by measuring the passing time between two points in the car is also used.

The control information processing device is a control device composed of a relay until recently, and a large capacity ground device was installed. In recent years, with the development of microelectronics, the control processing in the on-vehicle control device such as the generation of a braking pattern in the ATC device has been expanded, and the control of the occlusion section and the interlock function of the train are mostly performed in the ground apparatus as in the prior art. .

However, in such a signal system, communication between each device is made by a wired system. Therefore, if a problem occurs in the communication line, the smooth management of railway traffic cannot be achieved and the risk of an accident remains. In particular, since the communication line is using a disconnection, there are always obstacles in the communication line.

Accordingly, it is an object of the present invention to provide an automatic occlusion control system for railway vehicles that can reliably prevent the risk of an accident due to a failure of a communication line that may occur in an occlusion control system that is being used.

In order to achieve the above object, the present invention is a monitoring console installed in each station, the occlusion control box is installed in each block section along the up and down railway between each station, and installed in the relay room of each station and the monitoring console and the It consists of an occlusion control rack connected to an occlusion control box.

The occlusion control box installed at each occlusion section of the railway is a device that performs the main functions of the automatic occlusion control device, and includes a power module, an information transmission module, an input module, an output module, and a central processing unit (CPU) module. And a control rack including a track detection module and a high pressure impulse track circuit device.

In addition, the occlusion control rack is composed of a sub-rack consisting of a power module, a central processing unit module, an input module, an output module and an information transmission module.

In addition, each module in the occlusion control box and the occlusion control rack is composed of two relays of the same configuration, and the occlusion control boxes and the occlusion control box and the occlusion control rack are connected by a double information transmission line.

1 is a view schematically showing the overall configuration of a railway vehicle yaw automatic control system of the present invention.

Figure 2 is a block diagram schematically showing the configuration of the occlusion control box.

3 is a view schematically showing a configuration of a central processing unit module constituting a part of the occlusion control box.

4 is a view schematically showing the configuration of an output module constituting a part of the occlusion control box.

Figure 5a schematically shows the configuration of the high pressure impulse track circuit device.

5B is a view schematically showing the configuration of the trajectory detection module constituting a part of the occlusion control box.

6 is a view schematically showing the configuration of an information transmission module constituting a part of the occlusion control box.

1 is a view showing a brief configuration of an automatic occlusion control system for a railway vehicle of the present invention.

The automatic occlusion control system for railway vehicles according to the present invention includes a monitoring console (10, 10 ') installed in stations A and B and an interlocking device (30, 20') installed in a relay room and an interlocking device connected to the occlusion control rack (30). , 30 '), and a block control box (up 1 to 7) installed in each block section of the uplink railroads of the two stations A and B, and a block control box installed in each block section of the downline railroad (1). 8) Each of the occlusion control boxes is connected to the signal device 40 and the track circuit device 50. In addition, the crossing (C) is connected to the closest occlusion control box, it is determined that the occlusion control whether or not the normal operation of the crossing. In general, the occlusion section control of a railway vehicle collects train driving information obtained through various sensor devices connected to the occlusion control box and transmits it to the occlusion control rack installed in the relay room of each station, which is called the main control room. In addition, a monitoring console connected to the occlusion control rack allows the manager to adjust the train's driving based on train driving information.

As shown in FIG. 2, the occlusion control boxes (upper 1 to upper 7 and lower 1 to lower 8) each perform communication in real time with the power module 100 and various modules necessary for the operation of the occlusion control box. The central processing unit (CPU) module 110 to control the control unit, the input module 120 for receiving the state of the track relay, the power supply unit and the operation state (commercial, spare) of the module, and the occlusion signal display control and the ATS control. And an output module 130 for controlling and monitoring an indication of the operation state of the module together with single-center detection of the signal lamp, and an information transmission module 140 for transmitting information to left and right directions, that is, left and right adjacent stations. ), And the track detection module 150 for detecting the state of the track, and the monitoring panel 160 to visually check the operation of the various modules.

The central processing unit (CPU) module 110 is a part for controlling the entire occlusion control box by performing mutual communication with various modules and a monitoring panel in real time, the configuration of which is shown in FIG. 1), the RS-485 converter 110-2 having communicated with the central processing unit module and the other modules, and the RS-232C converter for storing various data processed by the microprocessor in the database (DB). 110-3), a program ROM incorporating a program in the central processing unit module 110, a RAM as a temporary storage device, and a black box for storing and maintaining the history monitored by the central processing unit module 110 even when the power is turned off. A memory unit 110-4 composed of NVRAM, which is a nonvolatile RAM for use, a program logic unit 110-5 capable of programming a program for visually outputting various signals processed by a microprocessor, and a program logic unit. LED unit (110-6) for visually outputting a signal and a monitoring instrument unit (110-7) having a self-diagnostic function for diagnosing the overall operating state of the central processing unit module (110). The central processing unit module configured as described above is composed of a dual system of the same configuration, so that a commercial system and a reserve system exist and a watchdog is installed as described above, so that the hardware and software are periodically inspected. When it occurs, it is transferred to the preliminary system and the information is transmitted to the occlusion control racks 20 and 20 'of the relay room. The central processing unit also periodically checks the power supply, I / O module, and track voltage monitoring module, and transfers the operation to the preliminary system and safety side for the module in which an abnormal condition occurs, and transfers the information to the occlusion control rack of the relay room. send.

The input module 120 is a module that receives the state of the orbital relay, the power supply unit and the operation state (commercial, spare) of the various modules, etc., and share the same input in a structure used separately for commercial and spare systems When the failure is transmitted to the central processing unit 110 through the failure information. Then, the central processing unit automatically grants control control authority to the preliminary system to perform normal functions, and in case of malfunction or input signal failure, all interlocking programs are executed according to the fail-safe principle to operate on the safe side. It is composed.

The output module 130 controls and monitors the indication of the operation status of the modules together with the obstruction signal display control, the ATS control and the single-center detection of the signal lamp. It automatically switches over to the preliminary system at the time of installation so that there is no problem in the operation and function of the field equipment. In case of failure of both use and spare module, it operates to safety side. The output module first performs self-diagnosis at system startup. This diagnosis includes ATS control relay coil disconnection detection, overload detection, output element disconnection, output element short-circuit and system monitoring by watchdog. If an abnormality is found during the inspection, the LED is displayed on the monitoring panel and the state is transmitted to the central processing unit 110.

As shown in Figure 4, the output module 130, the detection unit 130-1 for performing the ATS control relay coil disconnection detection, overload detection, disconnection of the output element, short circuit of the output element, and the like; The program logic unit 130-2, which allows a user to input a function program required for output as needed, an output LED unit 130-3 that visually outputs the content detected by the detection unit, and the program logic unit in the program. Microprocessor 130-4 for processing the signal of the detection unit to receive and transmit to the central processing unit module 110 for transmission, and RS for transmitting the signal processed by the microprocessor to the central processing unit module 110 485 converter (130-5), and the protection circuit (130-6) to protect the output module 130 from overcurrent and overload, and the monitoring instrument (130-7) having a self-diagnostic function connected to the microprocessor It is composed.

The track detection module 150 is connected to the high pressure impulse track circuit device (HVIT) 200. The track circuit device is a circuit for detecting the presence of the vehicle by shorting the left and right rails to the axle. The rail is divided into suitable sections to detect the presence or absence of the vehicle in each section to control signals, alarms, and the like. The basic circuit becomes a red signal when the train enters the closed section or the crossing control section, or when the track is cut off due to a disaster or the like, and falls off the relay. In the telephone section, the rail is also used as a path for train driving current.In order to distinguish the signal from the signal, the rail is insulated for the signal at the boundary of the closed section, and an impedance bond is provided for the driving current. Is different from the frequency of running current to ensure accuracy.

As shown in FIG. 5A, the high-voltage impulse track circuit device includes a voltage safety device 210, a transmitter 220 for transmitting a signal current, a transmission-side impedance bond 230-1, a receiving side, and a side-electrode impedance bond ( 230-2, a receiver 240 for receiving a signal, and an orbital relay 250. When the transmitter 220 transmits a signal having a different frequency from the train driving current, the receiver 240 receives the signal. If the train passes over the track circuit device, the train of the train in contact with the track The vehicle wheel causes a change in the signal so that it can be determined that a train exists. In addition, when a problem occurs in the track, that is, even if the track is broken, a change occurs in the signal so that an abnormality of the track can be known, so that a train accident due to the track abnormal can be prevented.

Accordingly, the trajectory detection module 150 detects the transmit / receive voltage level of the high voltage impulse track circuit device (HVIT) 200, the signal lamp main and subordinate terminal voltages, and the ATS terminal voltage in real time to the central processing unit 110. Function to transmit. The orbital detection module is composed of two relays, and in the event of a commercial system failure, an automatic stepless transfer to a spare system prevents an abnormality in the orbital detection function.

In addition, the track detection module has a failure detection and self-diagnosis. The track detection function has a built-in watchdog, which automatically resets when an abnormality occurs in the hardware due to an external lightning strike, and operates normally when there is no damage to the parts. If the information is not transmitted to the central processing unit module within the prescribed time (about 20ms), the central processing unit module determines that the track detection module has failed and the preliminary system is switched. In addition, if an abnormality occurs in the preliminary system, the safety side operation is immediately performed to prevent the train vehicle accident.

For the functions described above, as shown in FIG. 5B, the trajectory detection module 150 divides the high voltage obtained by converting the impulse current from the high voltage impulse track circuit 200 into waveforms without dividing the waveform into an appropriate magnitude. 150-1), a peak voltage detector 150-2 for detecting peak voltage (peak voltage) at the voltage passing through the voltage divider, and a multiplexer (MUX) 150 for multiplexing peak voltage detector detected peak voltages. -3), an analog / digital converter 150-4 for converting an analog signal through a predetermined circuit (e.g., an amplifier, etc.) output from the multiplexer into digital, and a signal processed by the converter to train the track. Program processor and microprocessor for storing the microprocessor (150-5) and the program necessary to control the overall operation of the trajectory detection module (150). A memory unit 150-7 including an SRAM and a flash memory for storing the result of the processing, a monitoring instrument 156-6 for self-diagnosing the function of the trajectory detecting module 150, and a result of the microprocessor processing RS-485 converter (150-8) for transmitting to the central processing unit module 110, and a protection circuit (150-7) for protecting the entire circuit.

Information transmission module 140 is the station up and down line occlusion signal and track circuit status information, the presence status and single-center detection information of the occlusion signal, vehicle occupancy information of the track circuit, occupied track circuit transmission and reception voltage level information, crosswalk function detection information By sending the occlusion signal and ATS terminal voltage information, power usage status information for each occlusion control box, occlusion control box operation status information and fault information for each real-time device, to the occlusion control rack in the relay room of the left and right adjacent stations, In addition, each station can monitor, compare, analyze, warn and output the operation status of field equipment.

6 is a block diagram illustrating a schematic configuration of the information transmission module 140. The information transmission module 140 includes an RS-485 converter 140-1, a microprocessor 140-2, a program memory unit 140-3, a three-channel RSC 232C communication port 140-4, , Level matcher 140-5, and transmit / receive channels 140-6.

The RS485 converter 140-1 is for communication with the central processing unit modules 100 in each of the occlusion control boxes, the microprocessor 140-2 controls the overall operation of the information transmission module 140, The program memory unit 140-3 contains a program necessary for overall control of the information transmission module, and the three-channel RSC 232C communication port 140-4 has a blockage control box adjacent to the crossing control box and a relay room. It is for communication with the occlusion control rack, and the level matcher 140-5 is for matching the transmission speed of the information transmission module.

The configuration of the occlusion control box and the configuration of each module constituting the occlusion control box have been described above. However, although illustrated as a device in the figure, as described above, it consists of two relays of each module of the occlusion control box. That is, in the case of the central processing unit module 110 is composed of two CPUs, one is used as a commercial system that always operates, and the other one takes over the task when one CPU used as a commercial system fails, the occlusion control It is used as a preliminary system to operate the ship normally. In addition, although the information transmission module 140 also shows only one in FIG. 2, it is also composed of two relays, one of which is used as a commercial system which always operates and the other is used as a commercial system. It is used as a reserve system that takes over a mission. In addition, since the transmission line used by the telegram transmission module is also composed of two relays consisting of two lines, when a problem occurs on one line and smooth information transmission is not performed, communication is automatically made through the other line. . Therefore, since the communication is performed with the occlusion control box and the occlusion control rack of the relay room of each station, the probability of a problem due to a communication error is almost less than that of the conventional one.

In addition to the central processing unit module 110 and the information transmission module 140 described above, other modules are also configured in two relays, which can prevent abnormal operation of the color control box due to an error of the module. It is possible to prevent the accident of the train vehicle caused by.

The various types of information acquired in the occlusion control rack are transmitted to the occlusion control racks 20 and 20 'in the relay room of the station so that the operator can monitor them through a monitoring console connected to the occlusion control rack. The occlusion control rack is composed of a power module, a central processing unit module, an input / output module and an information transmission module, and the configuration of each module is almost similar to that of the occlusion control box described above, and thus is not illustrated separately.

The occlusion control racks 20 and 20 'transmit the occupancy information and fault information of the occlusion control box to the interlocking devices 30 and 30' as digital outputs, and obtain the information of the intestinal beacons to control the occlusion control in front. send. At this time, the communication is made by the RS-485 method, and the same as the occlusion control box, it is composed of dual relays of commercial and spare systems, so that in case of failure of the commercial system, automatic stop switching of the spare system is performed.

As described above, each module and the information transmission line of the occlusion control box and the occlusion control rack constituting the automatic occlusion control system for railroad cars of the present invention are composed of two relays, a commercial system and a standby system, so that a failure occurs in one module. If it occurs, all the operations are automatically switched to another module of the same configuration. Also, since the information transmission line is composed of a commercial system and a spare system, if a short circuit occurs in one information transmission line and communication becomes impossible, the system immediately Automatic transfer. Therefore, since the safety communication between the signal lamp and ATS devices connected to each occlusion control box and the occlusion control rack and the track detection circuit is assured, and the safety of the occlusion control box and the occlusion control rack itself is ensured, There is an effect that can be reliably prevented large railway vehicle accidents caused by the failure of. In addition, since the various control devices constituting the occlusion control box and the occlusion control rack is composed of modules, there is an effect that the maintenance can be made conveniently.

Claims (7)

Monitoring consoles 10 and 10 'installed at each station, occlusion control racks 20 and 20' installed in the relay room, interlocking devices 30 and 30 'connected to the occlusion control racks, and an upward line between the stations. It consists of an occlusion control box (upper 1 to 7) installed at each occlusion section of a railway and an occlusion control box (up 1 to 8) installed at each occlusion section of a downline railway. 40) is connected to the track circuit device 50, the railroad crossing (C) is connected to the closest occlusion control box, it is determined that the occlusion control whether or not the normal operation of the railroad crossing, in the railway vehicle occlusion control system, the occlusion Each control box A power supply module 100 necessary for the operation of the occlusion control box, a central processing unit (CPU) module 110 for controlling and performing mutual communication with various modules in real time; An input module 120 for receiving a state of an orbital relay, an operation state of a power supply unit, and modules, and the like; An output module 130 for controlling and monitoring the indication of the operation state of the module together with the occlusion signal display control, the ATS control, and the single-center detection of the signal lamp; Left and right bidirectional, that is, the information transmission module 140 for transmitting information to the left and right adjacent stations, And the track detection module 150 for detecting the state of the track, It consists of a monitoring panel 160 to visually check the operation status of the various modules, Each module of the occlusion control box is composed of two relays of the same configuration consisting of a commercial system and a preliminary system, and when an abnormal operation or error occurs in the commercial system module, the operation of the commercial system module is automatically switched to the preliminary system. Automatic occlusion control system. The method of claim 1, wherein the central processing unit module 110, Microprocessor 110-1, RS-485 converter (110-2) for communication between the central processing unit module and each other module, An RS-232C converter 110-3 for storing various data processed by the microprocessor in a database DB; Program ROM containing the necessary programs in the central processing unit module 110, RAM as a temporary storage device, and a non-volatile RAM for the black box for storing the history monitored by the central processing unit module 110 even when the power off A memory unit 110-4 composed of NVRAM, A program logic unit 110-5 for programming a program for visually outputting various signals processed by the microprocessor, an LED unit 110-6 for visually outputting a signal processed by the program logic unit, and And a monitoring instrument unit (110-7) having a self-diagnosis function for diagnosing the overall operating state of the central processing unit module (110). According to claim 2, the central processing unit module is composed of a dual system of the same configuration, there is a commercial system and a reserve system, and through the monitoring instrument (110-7) periodically check the hardware and software of the central processing unit module, When an abnormal condition occurs, transfer to the preliminary system and transmit the information to the occlusion control racks 20 and 20 'of the relay room. The central processing unit module also includes the power supply module 100, the input / output modules 120 and 130, and the track. The inspection module 150 periodically checks the module in which an abnormal condition occurs, transfers the operation to the preliminary system and the safety side, and transmits the information to the occlusion control rack of the relay room. According to claim 1, wherein the output module 130 is the detection unit 130-1 for performing the monitoring of the ATS control relay coil disconnection detection, overload detection, disconnection of the output element, short circuit of the output element, and the like; A program logic unit 130-2 for allowing a user to input a function program required for an output module as needed; An output LED unit 130-3 for visually outputting the content detected by the detection unit; A microprocessor (130-4) for processing the signal of the detection unit for receiving and transmitting the program logic unit for transmission to the central processing unit module (110), RS 485 converter (130-5) for transmitting the signal processed by the microprocessor to the central processing unit module 110, And a protection circuit (130-6) for protecting the output module 130 from overcurrent and overload, And a monitoring instrument (130-7) connected to the microprocessor and having a self-diagnosis function. The method of claim 1, wherein the information transmission module, RS485 converter 140-1 for communication with the central processing unit module 100 in each of the occlusion control boxes, A microprocessor 140-2 for controlling the overall operation of the information transmission module; A program memory unit 140-3 incorporating a program necessary for overall control of the information transmission module; A three-channel RSC 232C communication port 140-4 for communication with the crossing block and other occlusion control boxes adjacent to the occlusion control box and the occlusion control racks 20 and 20 'of the relay room; It consists of a level matcher (140-5) for matching the transmission speed of the information transmission module, Up and down line occlusion signal and track circuit status information, status and single detection information of the occlusion signal, vehicle occupancy information of the track circuit, occlusion track circuit transmission and reception voltage level information, crossing function detection information, occlusion signal and ATS terminal voltage information Operation of field equipment at each station by transmitting power usage status information of occlusion control box, operation status information of occlusion control box, and fault information by real-time device to the occlusion control rack in relay rooms in the left and right adjacent stations. Automatic occlusion control system for railway vehicles, which allows monitoring, comparison, analysis, warning and output status. According to claim 1, wherein the trajectory detection module 150, A voltage divider 150-1 for dividing the high voltage from which the impulse current from the high voltage impulse track circuit 200 is converted into waveforms without dividing the waveform into an appropriate magnitude; A peak voltage detector 150-2 for detecting the peak voltage (peak voltage) at the voltage passing through the voltage divider; A peak voltage detector multiplexer (MUX) 150-3 for multiplexing the detected peak voltages; An analog / digital converter (150-4) for converting an analog signal output from the multiplexer and passing through a circuit such as an amplifier to digital; A microprocessor (150-5) for processing a signal passed through the transducer to determine whether the train occupies the track; A memory unit 150-7 including a program ROM incorporating a program required to control the overall operation of the trajectory detection module 150, an SRAM and a flash memory for storing a result processed by the microprocessor, and the like. Monitoring instrument 156-6 for self-diagnosing the function of the trajectory detection module 150, RS-485 converter (150-8) for transmitting the result processed by the microprocessor to the central processing unit module (110), It consists of a protection circuit (150-7) that protects the entire circuit. It determines whether the railway vehicle occupies the railway in the closed section, and if the railway vehicle occupies the railway, it displays it through a traffic light and displays one railway. When the other railway vehicle enters while the vehicle is in possession of the railroad, the automatic shut-off control system for a railway vehicle, characterized in that the ATS device is operated to stop the entry vehicle. The information transmission line according to claim 1, wherein the information transmission line between each of the occlusion control boxes, between the occlusion control box and the occlusion control rack, and between the occlusion control boxes closest to the crossing and the crossing is composed of a dual system of a commercial system and a reserve system. When an error occurs in the commercial system, the automatic system is automatically switched to the spare system, and the preliminary system takes over the information transmission task and performs the information transmission normally.