KR200358415Y1 - An intelligent traffic control system - Google Patents

Abstract

The present invention relates to an intelligent traffic control system of an electronic control method of the present invention. The system of the present invention is installed on a track to detect whether the vehicle is entering and leaving the traffic signal section and the driving state of the vehicle. A plurality of traffic signal control systems composed of a dual system of a preliminary system, which can replace the system, and are interchangeable; Controls the operation of the traffic signal control box and the interlock device by mutually transmitting whether the vehicle is entered and the driving state of the vehicle through communication with a plurality of traffic signal control boxes and the interlocking device, and calculates the distance, the course, and the allowable speed between the vehicles. Traffic signal control rack for controlling the operation of the vehicle by; And a monitoring console configured to control a plurality of traffic signal control boxes by monitoring a driving state of the vehicle by communication with the traffic signal control rack, wherein the plurality of traffic signal control boxes described above are each composed of a commercial system and a backup system. It is characterized by constructing advanced intelligent traffic control system including traffic path detection module, input module, output module, information transmission module, monitoring panel and central processing module.

Description

Intelligent Traffic Control System {AN INTELLIGENT TRAFFIC CONTROL SYSTEM}

The present invention relates to a traffic control system for controlling the operation of a vehicle, and more particularly, to control the operation of a vehicle such as a train or a bus by an electronic control method by a microprocessor and monitor the overall driving situation, the safety of the vehicle The present invention relates to an intelligent traffic control system that enables operation and efficient operation.

In general, the traffic control system is a device for automatically controlling the operation of the vehicle, for example, the automatic traffic signal control system is a signal indicative of the allowable speed of the train in accordance with the conditions, such as the distance to the preceding train, the course when the train is running It is a device that automatically controls the speed of the train according to the signal display by displaying on. The automatic traffic signal control system collects and transmits data necessary for the operation of trains from trains and ground auxiliary equipment, and on-board facilities and ground facilities that safely control trains by detecting train speeds and train positions. It consists of communication facilities for communication between vehicle and onboard equipment.

The conventional automatic traffic signal control system is a method of driving the system by interlocking control conditions for controlling the operation of the train to the relay contact point, and a number of relay contact points are required to implement one control signal. This method has a problem that a malfunction of the whole system occurs when a contact point of one relay is bad, and furthermore, there is no emergency operating system that can be replaced if the system malfunctions, thus ensuring safe operation of the train while restoring the system. There is a difficult problem. In addition, there is a problem that the failure of the system can not be prevented in advance, and the time and cost required for the recovery are high.

The present invention has been made to solve the above-mentioned problems, and equipped with an automatic traffic signal control box of the electronic control system to control the operation of not only trains but also vehicles such as buses by an electronic control method using a microprocessor, and overall operation. The purpose is to provide an intelligent traffic control system that can monitor the situation.

Another object of the present invention is to allow the system to be driven by a dual system of the commercial system and the preliminary system, so that if an error occurs in the commercial system, the vehicle is switched to the preliminary system replacing the commercial system.

Another object of the present invention is to provide a self-diagnostic device that monitors and checks the system at all times in each module to prevent the occurrence of a system failure in advance, and in case of a failure, identify the point of failure and quickly recover it. .

1 is a view showing an example of the use of the intelligent traffic control system according to the present invention,

2 is a block diagram of a traffic signal control box according to the present invention;

3 is a block diagram showing a traffic path detection module of the traffic signal control box shown in FIG.

4 is a block diagram showing an input module of the traffic signal control box shown in FIG.

5 is a block diagram showing an output module of the traffic signal control box shown in FIG.

6 is a block diagram showing an information transmission module of the traffic signal control box shown in FIG.

7 is a block diagram showing a central processing module of the traffic signal control box shown in FIG.

8 is a schematic diagram showing a traffic information transmission interface of the intelligent traffic control system according to the present invention.

** Explanation of Detailed References to Main Parts of Drawings **

10,10a ~ 10n, 10a '~ 10n'; Traffic signal control box 12a ~ 12n, 12a '~ 12n';

14a ~ 14n, 14a '~ 14n'; Signal 20,20 '; Traffic signal control rack

30,30 '; Interlock 40,40'; Monitoring console

110; traffic detection module 120; input module

130; output module 140; information transmission module

150; power supply 160; monitoring panel

170; central processing module 1,1 '; relay room

111,121,131,141,171; microprocessor

112, 122, 132, 142, 172; memory

113,123,133,143,173; RS-485 Converter

114,124,134,144, ® protection circuits 115,125,135,177; watchmakers

116,129a, 139a, 179a-1; Dip switch 117; Pressure suppression circuit

118; detection multiplexer 119; A / D converter

126; magnetic input protection circuit 127;

Photo insulation 129,139,179 CPLD

129b, 139b, 179b; LED 136; output lightning protection circuit

136 '; overcurrent protection circuit 137; disconnection detection unit

145; level matching unit 146; RS-232 channel separation unit

175; modem 176; asynchronous communication extension table

178; RTC

The intelligent traffic control system of the present invention for achieving the above objects, is installed on the track to detect whether the vehicle is entering and exiting the vehicle and the operating state of the vehicle within the interval between the station and the station, while the commercial system and the commercial system A plurality of traffic signal control panels configured to be replaced with a dual system of spare systems, which are interchangeable; By communicating with the plurality of traffic signal control box and the interlock device to transmit whether the vehicle is entered and the driving state of the vehicle to control the operation of the traffic signal control box and the interlock device, the distance between the vehicle, the course, A traffic signal control rack that calculates an allowable speed and controls the driving of the vehicle; And a monitoring console configured to control the plurality of traffic signal control boxes by monitoring a driving state of the vehicle through communication with the traffic signal control rack.

And the plurality of traffic signal control box is installed on the line in the traffic signal section to check the operation of the traffic circuit device for controlling the signal and the AT associated with the traffic signal control box, while the transmission and reception voltage of the signal and the AT Traffic route detection module for detecting and checking the level, the main terminal terminal voltage of the signal signal, and the AT terminal voltage from time to time; and if the overvoltage or external abnormal voltage is applied, the overvoltage and abnormal voltage is cut off, input from the traffic path detection module An input module for determining whether to enter or exit the train from the impulse and transmitting a signal; A central processing module which controls the overall driving of each module and calculates the entry / exit of the vehicle and the driving state of the vehicle from the signal input from the input module and transmits and receives the adjacent traffic signal control box; An output module which transmits a signal received from the central processing module to the signal and AT, and outputs a signal to display a driving state of the vehicle entered and entered by the signal and AT; An information transmission module for separating a channel of a signal so as to transmit and receive information necessary for driving the vehicle in both directions to the adjacent traffic signal control unit; A monitoring panel for receiving the entry / exit and driving state of the vehicle from the central processing module so as to monitor and control the traffic signal control box from the outside; And a power supply device for supplying power required for driving each module, wherein each module includes a commercial system that is normally driven and a spare system that can replace the commercial system, and mutual switching between the commercial system and the spare system. It is characterized by the possibility.

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

1 is a view showing an example of the use of a traffic control system according to the present invention.

Referring to FIG. 1, a traffic control system according to the present invention includes a plurality of traffic signal control boxes 10a to 10n and 10a 'to 10n', a traffic signal control rack 20 and 20 'provided in a signal relay room, and monitoring. Console 40, 40 ', the interlock device 30, 30' interlocked with the above-described traffic signal control racks 20, 20 ', and a plurality of traffic signal control boxes (10a ~ 10n, 10a') 10n ') is connected to an automatic train stop (hereinafter referred to as' AT ') (12a to 12n, 12a' to 12n ') and traffic signal signals 14a to 14n and 14a'14n', respectively. .

In addition, a traffic path circuit device for applying a high voltage impulse is installed in a railway (rail) to grasp the operating state of the train, and these traffic path circuit devices also control respective traffic signals (10a ~ 10n, 10a '~ 10n). ')

The traffic control system of the electronic control method configured as described above detects the entry of the train in the traffic signal section, and automatically controls the operation of the interval, the course, the allowable speed, etc. between the trains by transmitting and receiving the detected train signals. In case of abnormality, the train operation is controlled by an automatic control method using a microprocessor, such as stopping the train automatically.

As shown, a plurality of traffic signal control boxes (10a ~ 10n, 10a '~ 10n') is installed in the traffic signal section between the station up / down line to detect the train entering the traffic signal section entering the traffic signal section The traffic signal control racks 20 and 20 'and the monitoring consoles 40 and 40' installed in the signal relay room (hereinafter referred to as 'relay chambers') are traffic signal control boxes 10a to 10n. 10a '~ 10n') controls the operation of subsequent trains by receiving signals for the incoming trains and monitoring the overall situation of the track operation. In addition, the interlocking devices 30 and 30 'interlocked with the traffic signal control racks 20 and 20' provide a traffic signal control rack 20 and 20 'from the traffic signal control boxes 10a to 10n and 10a' to 10n '. It performs the overall operation of the good line according to the signal received through.

Therefore, as described above, the interlocking devices 30 and 30 'installed in the relay room and the traffic signal control racks 20 and 20' and the monitoring consoles 40 and 40 'are installed in the traffic signal section between the station and the station. It consists of a plurality of traffic signal control boxes (10a ~ 10n, 10a '~ 10n'), and associated with the AT 12a ~ 12n, 12a '~ 12n' and the signal (14a ~ 14n, 14a '~ 14n') respectively The traffic control system transmits and receives information or information received from each device due to mutual communication between them.

Based on this, the configuration of the traffic signal control boxes 10a to 10n and 10a 'to 10n' as described above will be described in detail.

Figure 2 is a block diagram of a traffic signal control box according to the present invention, Figure 3 is a block diagram showing a traffic path detection module of the traffic signal control box shown in Figure 2, Figure 4 is a view of the traffic signal control box shown in FIG. 5 is a block diagram showing the output module of the traffic signal control box shown in Figure 2, Figure 6 is a block diagram showing the information transmission module of the traffic signal control box shown in FIG. 7 is a block diagram showing the central processing module of the traffic signal control box shown in FIG.

First, referring to FIGS. 2 and 3, the traffic signal control box 10 according to an embodiment of the present invention is a traffic path detection module operated in connection with the central processing module 170 and the central processing module 170. 110, input / output modules 120 and 130, information transmission module 140, and a power supply device 150 for supplying power for driving each module 110, 120, 130, 140, 160 and 170, and a monitoring panel 160.

Each of these modules 110, 120, 130, 140, 160 and 170 is a microprocessor capable of performing functions such as internal computing, storage, and manifestation, a memory for temporarily storing data processed by the microprocessor, and a signal for transmitting signals to other modules. A communication port and a protection circuit for protecting each module 110, 120, 130, 140, 160, 170 from an external device are basically provided and driven.

In more detail, the monitoring panel 160 receives information such as the transmission / reception voltage level of the traffic path circuit and the high-pressure impulse traffic path circuit device, the signal main controller terminal voltage, the AT terminal voltage, and the like from the central processing module 170 in real time. Display.

The traffic path detection module 110 is a traffic path circuit device that detects the presence or absence of a train on a line in a traffic signal section and controls a signal and an AT. The traffic path detection module 110 checks the operation of the traffic path circuit device, and transmits and receives voltages of the signal and AT The controller detects the level, the main terminal terminal voltage of the signal signal, and the AT terminal voltage from time to time, and transmits the checked information to the central processing module 170.

As shown in FIG. 3, the traffic path detection module 110 includes a microprocessor 111 for performing internal calculations and a program necessary for controlling the overall operation of the traffic path detection module 110. A memory 112 composed of a ROM 112a, a flash memory FLASH 112b, and a RAM SRAM 112c for temporarily storing data processed by the processor 111 is basically provided. In addition, the protection circuit 114 connected to the RS-485 converter 113 and the RS-485 converter 113 for signal transmission with the central processing module 170 of the traffic signal control box 10 here. It consists of WatchDog Timer 115, Dip Switch DIP S / W; 116, A / D Converter 119, Multiple Voltage Divider 118a, Peak Voltage Detector 118b, and Multiplex 118c. The traffic detection module 110 according to the present invention is driven by the detection multiplexing unit 118 and the decompression protection circuit 117 for blocking the input voltage.

The above-mentioned RS-485 converter 113 is converted into a format suitable for protocol communication so as to facilitate signal transmission with the central processing module 170 of the traffic signal control box 10, to the RS-485 converter 113 The protection circuit 114 to be connected prevents an abnormal voltage from flowing when the signal converted through the RS-485 converter 113 is transmitted / received to the central processing module 170. As such, the protection circuit 114 for protecting the internal module 110 during communication with the central processing module 170 is preferably installed between the RS-485 converter 113 and the central processing module 170.

The dip switch (DIP S / W) 116 is a switch for designating an address for identification of a commercial system or a spare system, and when an abnormality occurs in the commercial system, the dip switch (DIP S / W) is automatically configured to replace the driving in the commercial system. have.

The watchdog time 115 is a type of counter. The watchdog time 115 is a device that monitors whether hardware driving and software driving are abnormal at predetermined time intervals by setting a predetermined time. If an error occurs in the system due to mechanical failure (hardware failure) or program error (software failure), the system is automatically reset and the system starts to run normally. The operation state of the traffic path detection module 110 is transmitted to the microprocessor 111 and is operated to switch the preliminary system through the dip switch 116. If any abnormality occurs in the preliminary measurement, the safety side operation is performed immediately.

The decompression protection circuit 117 is a circuit that cuts off an abnormal input voltage by using a transistor and a resistor (for high resistance when overcurrent) at an input terminal, and operates in the traffic path detecting module 110 from an abnormal voltage of a traffic path circuit device installed in a line. It protects the circuit.

The detection multiplexer 118 is installed at the rear end of the above-described decompression protection circuit 117 and detects the peak voltage from the output of the decompression protection circuit 117 and then multiplexes and outputs the voltage divider 118a and the peak detector. 118b and multiplex 118c.

The A / D converter 119 converts an analog / digital signal to each other. The A / D converter 119 converts a signal output from the detection multiplexer 118 into a digital signal and transmits the signal to the microprocessor 111 on a later stage. 111 performs its own operation and outputs the operation result.

Therefore, the traffic path detection module 110 detects and blocks an abnormal voltage input to an external device, periodically detects the voltage level between the signal on the input side and the signal on the output side, the terminal voltage of the signal signal, and the AT terminal voltage. It transmits to the microprocessor 111, and performs the function of determining whether the traffic circuit device is operating normally. The traffic path detection module 110 is configured and operated as a dual system traffic path detection module 110 of the commercial system and the preliminary system configured as described above, so that the traffic route detection module 110 may be safely operated by mutual switching between the commercial system and the reserve system. That is, two systems of commercial system / preliminary system process data at the same time, and output only the control output of the field in commercial system and operate in spare system in case of commercial system failure.

The traffic path detection module 110 includes a flash memory 112b, a monitoring timekeeper 115, and an A / D converter 119 built in the microprocessor 111 as necessary to provide a traffic path detection module 110. The board can be further scaled down.

Referring to FIG. 4, the input module 120 of the traffic signal control box 10 according to the present invention is a microprocessor 121 that performs internal operations as shown, and the overall operation of the input module 120. A memory 122 including a pyramid (EPROM; 122a) and an SRAM (SRAM; 122b) for temporarily storing data processed by the microprocessor 121 by embedding a program necessary for controlling the traffic signal; RS-485 converter 123 for signal transmission with the central processing module 170 of (10) and the protection circuit 124 connected to the RS-485 converter 123 is basically provided, the microprocessor described above The watchdog timer 125 is provided at 121 to operate in conjunction with the microprocessor 121. In addition, a dip switch 129a interlocked with the input protection circuit 126 of the input terminal, the self-diagnosis unit 127, the photo insulation unit 128, the CPLD (Programmable Logic Device) 129, and the CPLD 129, and LED 129b is further provided and driven.

The aforementioned EPROM 122a and SRAM 122b, the RS-485 converter 123, the protection circuit 124, and the monitoring indicator 125 are ROMs of the above-described traffic path detection module 110. The same function as the 112a and the ram 122b, the RS-485 converter 113, the protection circuit 114, and the monitoring indicator 115 will be omitted.

The input protection circuit 126 is a circuit using a transistor and a Schottky diode at an input port. When an overvoltage is applied, a limit voltage is generated and an overvoltage is cut off, and when an external abnormal voltage such as a lightning strike or a ground fault is applied, the external device is blocked. It protects the input module 120 from the.

The photo insulation unit 128 is provided at the rear end of the input protection circuit 126 to compare the signal output from the input protection circuit 126 and the input signal to determine whether or not coincide with each other. As a result of the determination, if they do not coincide with each other, the photo-insulation unit 128 transmits a mismatch signal to the microprocessor 121, and the microprocessor 121 transmits the received signal to the central processing module 170 through the communication port and at the same time, the photo-insulation unit. Recognize that 128 is broken or shorted.

The self-diagnosis unit 127 is performed to perform self-diagnosis in the system when the system is initially driven. The self-diagnosis unit 127 always checks whether the input protection circuit 126 and the photo insulation unit 128 have a short circuit and disconnection. As a result of the determination, if a failure is found, a failure signal is transmitted to the CPLD 129 which will be described later, and serves to display the failure signal to the outside.

The CPLD (Programmable Logic Device) 129 is a dip switch 129a and an operation lamp 129b-1 / TX (transmission) lamp 129b-2 / RX capable of assigning unique addresses identified as commercial and spare systems. (Receive) in conjunction with the LED (129b) divided into (129b-3) / failure lamp (129b-4) performs a function to control the operation of the dip switch (129a) and LED (129b). The CPLD 129 is provided at the rear end of the photo insulation unit 128 to provide a signal for the operation state of the input module 120 received from the photo insulation unit 127 and the self-diagnostic unit 127 to the corresponding LED 129b. Mark on.

RUN LED Indicates that it is operating normally FAULT Indicates that it is bad RX LED Lights up when receiving information from the outside TX LED Lights up when sending information DI1-DI16 Indicates that the input port is receiving information

For example, as shown in Table 1, when the self-diagnosis results of the input protection circuit 126 and the photocoupler 128 are normally operated, the RUN LED, which is the operation lamp 129b-1, is turned on and displayed. 129b-4) turns on FAULT to indicate that it is defective. In case of transmitting / receiving information from external device normally, TX / RX LED is turned on and displayed. In addition, the LEDs of the input ports DI1 to DI16 are lit to indicate that the information is received from any of the 16 input ports.

The input module 120 configured as described above has a function of detecting whether the train has entered the traffic path by receiving a relay contact according to the driving state of the train from the high-pressure impulse traffic path detection module 110 installed in the track. To perform. Therefore, it performs a function of receiving a single-core signal for the traffic circuit and signal housekeeping core installed in the track to the central processing module 170, and in the process of performing such a function, an overvoltage or an external abnormal voltage is applied. If it does, it blocks the function.

The input module 120 is also configured as a dual system capable of driving each of the commercial system and the preliminary system separately, and the switching between the commercial system and the preliminary system through the control of the microprocessor 121 is made quickly, and thus the input module 120 is It can be operated safely.

Referring to FIG. 5, the output module 130 of the traffic signal control box 10 according to the present invention receives an input signal from the input module 120 and displays an output corresponding thereto. It is a module that controls and monitors ATS control and present status display by forward traffic signal controller information. As shown in the figure, the microprocessor 131 performs internal calculations, and a program for embedding a program necessary to control the overall operation of the output module 130 and temporarily storing data processed by the microprocessor 131. RS-485 converter 133 for signal transmission with a memory 132 consisting of a ROM (EPROM) 132a and an SRAM (SRAM) 132b and a central processing module 170 of the traffic signal control box 10. And a protection circuit 134 connected to the RS-485 converter 133 and a watchdog timer 135 that operates in conjunction with the microprocessor 131. It is interlocked with the output lightning protection circuit 136, the overcurrent protection circuit 136 ′, the disconnection detecting unit 137, the photo insulation unit 138, the programmable logic device (CPLD) 139, and the CPLD 139. The dip switch 139a and the LED 139b are further provided to be driven.

In this case, the LED 139b is divided into an operation lamp 139b-1 / TX lamp 139b-2 / RX lamp 139b-3 / failure lamp 139b-4 as described above.

In addition, the output lightning protection circuit 136 is configured such that an external high voltage such as an indirect lightning strike is not introduced into the inside by using a diode and a transistor, and the overcurrent protection circuit 136 'is a case in which an external short or overcurrent flows due to feedback. If so, it is configured to automatically limit it.

The disconnection detecting unit 137 has the same function as the self-diagnosis unit 127 of the input module 120, and checks whether the photo insulation unit 138 corresponding to the input terminal of each output module 130 is shorted or disconnected. If the abnormality is determined during the inspection, the fault LED is displayed to the outside, and the abnormal signal is transmitted to the central processing module 170 through the microprocessor 131 of the output module 130.

RUN LED Indicates that it is operating normally FAULT Indicates that it is bad RX LED Lights up when receiving information from the outside TX LED Lights up when sending information DO1-DO16 Indicates that information is sent from the output port

For example, as shown in Table 2, if the operation of the output module 130 is normally performed, the RUN LED is turned on and displayed. If abnormal, the FAULT LED is turned on to indicate a failure, and information is normally transmitted / received from an external device. In this case, the TX / RX LED is lit. In addition, the LEDs of the output ports DO1 to DO16 are lit to indicate that the output of any of the 16 output ports is information transmission.

In addition, the CPLD (Programmable Logic Device) 139, which is interlocked with the dip switch 135a and the LED 139b, which are capable of designating unique addresses identified by commercial and spare systems, has an I / O interface due to an input / output decoder. It is configured to facilitate the function of controlling the operation of the dip switch (139a) and the LED (139b).

The output module 130 configured as described above is driven separately from the commercial system and the preliminary system, and transmits a fault signal to the microprocessor 131 in the event of a commercial system failure and to the central processing module 170 of the traffic signal control box. Thus, the dip switch 139a is configured to switch the driving of the commercial system to the preliminary system. Accordingly, the output module 130 can be safely operated.

Therefore, the output module 130 receives the information input from the input module 120 through the central processing module 170 to be described later, and outputs the corresponding output to control the traffic signal signal and AT. . In this case, when an abnormality is detected in the output module 130, the detected abnormal signal is transmitted to the central processing module 170 through the microprocessor 131 and the communication port in the module 130.

Referring to FIG. 6, the information transmission module 140 of the traffic signal control box 10 according to the present invention bidirectionally transmits information to the communication of the adjacent traffic signal control box to protect from an accident that may occur in the operation of a train. It performs the function of sending and receiving.

The information transmission module 140 for this purpose is embedded in the microprocessor 141 performing internal operations as shown, a program necessary to control the overall operation of the information transmission module 140 and processed by the microprocessor 141. Signal transmission between the memory 142 comprising ROM (142a) and SRAM (SRAM) 142b for temporarily storing data, and the central processing module 170 of the traffic signal control box 10 RS-485 converter 143 and a protection circuit 144 connected to the RS-485 converter 143 is basically provided, and a dip switch capable of assigning unique addresses identified as commercial and spare systems. (DIP S / W) 147 is provided.

In addition, the level matching unit 145 is provided to match and output the transmission level of the information transmission module 140, and the channel matching unit 146 is provided at the rear end of the level matching unit 145 to communicate with adjacent railroad crossings and Communication between each traffic signal control box and the traffic signal control rack is performed by separating the channel. For example, as shown, in the embodiment of the present invention, the commercial system and the reserve system each have two channels, and each channel is a transmitter and a receiver that are divided into T lines and R lines. Therefore, in the commercial system, a transmission terminal divided into a T line and an R line is divided into one channel and a reception terminal divided into a T line and an R line. It is composed of 1 channel and 1 channel of receiving end divided into T line and R line.

7, the central processing module 170 of the traffic signal control box 10 according to the present invention is one of the core modules of the traffic signal control box 10, the above-described traffic path detection module 110, input The module 120, the output module 130, the information transmission module 140, and the monitoring panel 160 communicate with each other to monitor and control the operation of each module 110, 120, 130, 140, 160 collectively, and the input module 110. It calculates the entry and exit of the train and the operating state of the train from the signals input from the station, and is responsible for mutual transmission and reception between adjacent traffic signal control boxes.

For this purpose, the central processing module 170 includes a microprocessor 171 that performs internal operations as shown, a program necessary to control the overall operation of the central processing module 170, and is processed by the microprocessor 171. Memory 172 comprising ROM (172a), RAM (172b) and SRAM (NV SRAM; 172c) for temporarily storing data, and hardware and software driving at predetermined time intervals. It is provided with a watchdog (WatchDog Time) 177 for monitoring whether there is an abnormality, and other modules (for example, traffic path detection module 110, input / output modules 120, 130, information transmission module 140) or relay room Three communication ports for communication with the installed traffic signal control rack (20, 20 'of FIG. 1) and external devices (30, 30' of FIG. 1) and pulses at regular time intervals provide a standard clock. RTC (Real-Time Clock) 178 is provided. In addition, the LED (179b) divided into the operation lamp (179b-1) / TX lamp (179b-2) / RX lamp (179b-3) / failure lamp (179b-4), and the operating state and abnormality of the system And the commercial system and the preliminary system of the CPLD 179 for controlling the LED 179b and the central processing module 170 configured as a dual system to be interchanged with each other through the LED 179b. The main is provided with a dip switch (DIP S / W) 179a-1 and a FUC switch 179a-2.

The above-described ROM (ROM) 172a is a nonvolatile device that stores an operating program, and the RAM (RAM) 172b is a device that stores data for calculation and control processing, and the SRAM (NV SRAM) 172c is a black box. It is a semi-permanent device that can store data even in the event of a power failure, as well as read (read) and write (write).

Three communication ports enable one RS-485 communication port for information exchange between commercial and reserve systems or between modules 110, 120, 130, and 140, and transmits various information to external devices (eg, computers, laptops, etc.) for inspection. It consists of one communication port of RS-232C type and one communication port for information exchange between information analysis devices through wired network. Therefore, an RS-485 converter 173 is provided at the RS-485 communication port, and an RS-232C converter 173 'is provided at the RS-232C communication port for exchanging information between modules. The communication port for information exchange between devices includes a modem 175 and an RS-232C converter 173 '' and an asynchronous communication extension table 176 to be compared for information analysis.

In addition, the central processing module 170 is connected to the CPLD 179 and the CPLD 179 of the central processing module 170 in association with the LED 179b and the CPLD 179 to respectively display the operation state of the system on the corresponding lamp. The dip switch 179a-1, which is switched to be safely driven, performs the same function as described above, and thus a detailed description thereof will be omitted.

However, the LED 179b of the central processing module 170 is operated as shown in Table 3 below.

RUN LED Indicates that it is currently active FAULT Indicates that it is bad TX_R LED Indicates that information is sent when communicating with each module inside RX_R LED Indicates that the information is received when communicating with each module inside TX_1 LED Lights up when sending information to HOST RX_1 LED Lights up when receiving information from the outside TX_2 LED Lights up when sending information to the outside RX_2 LED Lights up when receiving information from the outside

For example, as shown in Table 3, if the operation of the central processing module 170 is normally performed, the RUN LED is turned on and displayed. If abnormal, the FAULT LED is turned on to indicate that it is bad, and information is normally received from an external device (HOST). In case of transmitting / receiving, TX_1 / RX_1 LED is turned on.

In addition, as described above, the microprocessor 171 collectively controls all operations of the central processing module 170 and the other modules 110, 120, 130, and 140, and the operation state of whether the program of the central processing module 170 is normally driven and It monitors the power supply operation state, adjusts the time of the monitoring timekeeper 177, and resets according to the inspection of the monitoring timekeeper 177 as needed. And, by calculating the signals input from the input module 110 to calculate the entry and exit and the operating state of the train and transmits and receives the adjacent traffic signal control box.

Therefore, the central processing module 170 is capable of mutual communication between various modules (traffic path detecting module 110, input / output module 120, 130, information transmission module 140) and the monitoring panel 160 through three communication ports. In addition, the microprocessor 171 may collectively manage and control information processed from various modules 110, 120, 130, and 140 through mutual communication. In addition, the central processing module 170 is composed of a dual system of commercial system and preliminary system to automatically switch to the preliminary system in the event of a commercial system failure, the traffic signal control box 10 as well as the central processing module 170 is normally operated. It is possible to safely transmit and receive information such as the appearance of the traffic signal signal, the operation of the front and rear traffic signal control box, the operation status (transmission, reception, failure / normal status) of the various modules 110, 120, 130, 140.

Referring back to FIG. 1, the traffic signal control racks 20 and 20 'installed in the relay room include a plurality of traffic signal control boxes 10a to 10n and 10a' to 10n 'installed between the station and the interlock device 30. 30 ') to send and receive information in both directions. That is, the operation information of the intestinal signal is received from the interlocking devices 30 and 30 'and transmitted to the traffic signal control boxes 10a to 10n and 10a' to 10n 'of the site, and the traffic signal control boxes 10a to 10n and 10a' are received. ~ 10n ') receives the operation information and transmits the start signal and the present condition to the interlocking device (30, 30'). This traffic signal control rack (20, 20 ') has a self-diagnosis control logic based on the AT control logic for efficient control and maintenance of the train, RS-485 communication port is provided to perform communication between all modules It is implemented.

In addition, the main part of the traffic signal control rack (20, 20 ') is composed of a dual system of commercial and reserve system is implemented to enable automatic switching between commercial and reserve system. Therefore, the two systems of commercial system / preliminary system process data at the same time so that only control output of the field is output from commercial system and output from spare system in case of commercial system failure.

Due to such a configuration, the traffic signal control racks 20 and 20 'of the present invention can be used to control the state of the core of the in-vehicle signal lamp, information on the voltage and supply voltage of the traffic circuit device, and operating conditions of commercial and spare systems. It performs the function of receiving from the traffic signal control box (10a ~ 10n, 10a '~ 10n') of the site, and transmits the received information to the monitoring console (40, 40 ') through the monitoring console (40, 40') Express to the outside.

The above-described monitoring consoles 40 and 40 'are one of display devices for outputting information about devices (such as signal signals) in a station, and include a list of full screens, up / down traffic signal signals and traffic path circuits between stations, In-field and depart- ing signals of the station and counterpart, the presence and deciduous detection of in-field / departure / traffic signal signals, the occupancy status of the traffic route circuits, the transmission / reception voltage levels of the traffic signal traffic route circuits, the crossing operating status, the traffic signal signals and ATs It outputs terminal voltage, supply voltage usage by traffic signal control box, operation status of traffic signal control box, and fault status by module.

8 is a schematic diagram showing an information transmission interface of the traffic control system according to the present invention.

As shown, between a plurality of traffic signal control boxes (10a, 10b) installed between the station and the station and the traffic signal control racks (20, 20 ') installed in the relay room interlocked with each traffic signal control box (10a, 10b) It transmits and receives information on the operation state of each traffic signal control box 10a, 10b, such as control information of a signal signal, drive control information of an AT, self-diagnosis information, voltage of a traffic path circuit, and single-center information of a signal signal.

The traffic signal control racks 20 and 20 'transmit the information received from the traffic signal control boxes 10a and 10b to the monitoring consoles 40 and 40' so that the status of the system can be checked and output through monitoring. On the other hand, the operation information of the signal signal and the information on the traffic route circuit from the received information to transmit and receive to the interlocking device (30, 30 ') performs a function to control the operation of the train.

As such, a plurality of traffic signal control boxes 10a and 10b installed between the station 1 and the neighboring station 1 'are respectively installed in the relay room of the station 1 and the neighboring station 1'. Transmits and receives various operating states to the traffic signal control racks 20 and 20 ', and especially transmits and receives the signal status of the in-field / departure / traffic signal signal to display whether the train is entering or not within the traffic signal section and the departure time of the entered train. do. Then, the engine operator can control the operation of the train (especially, subsequent train) by checking the signal state through the monitoring consoles 40 and 40 'of the relay room. If necessary, it can be controlled to stop automatically.

As described above, according to the present invention, the operation of the vehicle can be performed by an electronic control method using a microprocessor, and the overall driving situation can be monitored, so that all information necessary for train control can be integrated and managed. It can be automated. As a result, the safe operation and efficient operation of the train is possible.

In addition, each module is composed of a dual system of commercial and spare systems, respectively, and if an abnormality occurs in the commercial system, it is automatically switched to the spare system to be driven so that normal operation can be performed without disrupting the operation of the vehicle, and further, safety for vehicle operation. There is an effect that can be secured.

In addition, the self-diagnostic apparatus for monitoring and inspecting the system in each module has the effect of preventing the occurrence of a failure of the system in advance, and in the event of a failure, it is possible to check the point of failure and quickly recover it.

Claims (3)

Entering the vehicle through communication with a plurality of traffic signal control boxes and a plurality of traffic signal control boxes and interworking devices, which are composed of a commercial system and a dual system of a spare system that can replace the commercial system. A traffic signal control rack for controlling the operation of the traffic signal control box and the linkage device by mutually transmitting a status of the vehicle and a driving state of the vehicle, and calculating a distance, a course, and an allowable speed between the vehicles, and controlling the operation of the vehicle; In a traffic control system comprising a monitoring console for controlling the plurality of traffic signal control box by monitoring the driving state of the vehicle in communication with the traffic signal control rack, The plurality of traffic signal control box Installed on the track within the traffic signal section to check the operation of the traffic circuit device for controlling the signal and the AT associated with the traffic signal control box, while the signal level of the signal transmission and reception of the signal and the AT, the terminal main voltage of the signal, Traffic path detection module for detecting and checking the AT terminal voltage; and, An input module for blocking the overvoltage and the abnormal voltage when an overvoltage or an external abnormal voltage is applied, and determining whether the train is entering or leaving the train from the impulse input from the traffic path detecting module; A central processing module which controls the overall driving of each module and calculates the entry / exit of the train and the operating state of the train from the signal input from the input module and transmits and receives the adjacent traffic signal control box; An output module which transmits a signal received from the central processing module to the signal and AT, and outputs a signal to display a driving state of the train entering and leaving by the signal and AT; An information transmission module for separating a channel of a signal to transmit / receive information necessary for the operation of the train in both directions to the adjacent traffic signal control unit; And It consists of a monitoring panel that receives the entry and exit of the train from the central processing module and outputs in real time to monitor and control the traffic signal control box from the outside, Each module is composed of a commercial system that is normally driven and a spare system that can replace the commercial system, the intelligent traffic control system, characterized in that the mutual switching between the commercial system and the preliminary system. The method of claim 1, wherein the traffic path detection module A microprocessor for performing internal operations; and A memory for temporarily storing data processed by the microprocessor, including a program necessary for controlling the overall operation; An RS-485 communication port connected to the RS-485 converter for signal transmission between the input modules, and a protection circuit connected to the RS-485 converter to protect the inside from an external abnormal voltage; A decompression protection circuit for decompressing an overvoltage and an abnormal voltage among signals detected and input from a plurality of traffic path circuit detection stages; A detection multiplexer which selects and outputs one signal from the signals inputted from the decompression protection circuit; And And an A / D converter converting the signal output from the detection multiplexer into a digital / analog signal and transmitting and receiving the signal to the microprocessor. The method of claim 1, wherein the input module A microprocessor for performing internal operations; and A memory for temporarily storing data processed by the microprocessor, including a program necessary for controlling the overall operation; An RS-485 communication port connected to the RS-485 converter for signal transmission between the traffic path detection module and the central processing module, and a protection circuit connected to the RS-485 converter to protect an internal from an external abnormal voltage; An input terminal self-diagnostic unit which performs internal self-diagnosis and protects the inside by blocking overvoltage and abnormal voltage from the signal received from the traffic path detection module; LED for displaying the entrance and exit of the train and the operating state and the operation in itself with a color light; And And a CPLD converting a signal input through the input terminal self-diagnostic unit into an operation signal so as to be output to the outside through the LED, and transmitting the signal to the LED. The output module A microprocessor for performing internal operations; and A memory for temporarily storing data processed by the microprocessor, including a program necessary for controlling the overall operation; An RS-485 communication port connected to the RS-485 converter for signal transmission between the central processing modules and a protection circuit connected to the RS-485 converter to protect the internal device from an external abnormal voltage; LED for displaying the entrance and exit and the running state of the train with a color light; A CPLD for converting a signal input from the central processing module into an operation signal for expressing to the outside through the LED and transmitting the converted signal to the LED; And Intelligent traffic control, characterized in that it is installed at the rear end of the CPLD to perform the self-diagnosis in the self, and to detect the disconnection of the output terminal and to cut off the overcurrent and the abnormal voltage to output a normal output signal. system.