KR100470145B1 - A crossing control system by artificial intellegence - Google Patents

Abstract

The present invention prevents railroad crossing accidents by installing a place where railroads and roads intersect, alarming the train's approach and stopping all vehicles and pedestrians passing by passing down a short circuit before a train passes a railroad crossing. It relates to a device to.

According to the artificial intelligence crossing alarm device according to the present invention

In case of work such as track repair or accident recovery in the double track section, an alarm system and a short circuit can be operated even when an ascending train runs on an ascending train or an ascending train is descending on a descending railroad. Even without this arrangement, the railroad crossing can be safely alarmed and blocked so that the railway accident can be prevented and the management of the railway can be drastically improved.

Description

AI crossing control system {A crossing control system by artificial intellegence}

The present invention is installed in the intersection of the railroad and the road plane to alert the train approaching a certain time and minutes before the train passes the railroad crossing and to stop all the vehicles and pedestrians passing by the short cut down the railroad crossing accident in advance It relates to a device for preventing.

According to the artificial intelligence crossing alarm device according to the present invention,

In case of work such as track repair or accident recovery in the double track section, an alarm system and a short circuit can be operated even when an ascending train runs on an ascending train or an ascending train is descending on a descending railroad. Even without this arrangement, the railroad crossings can be safely alarmed and blocked so that railway accidents can be prevented in advance and the management of the railway can be significantly improved.

Currently, the control system of railroad crossings installed in Gyeongbu Line, Honam Line, and Chungbuk Line is analog type. Such a conventional crossing control and alarm device has to pass an ascending train to an ascending track or a descending train at an ascending track in order to pass without stopping the train when there is a repair or accident recovery operation of the track in a double track section. Since the railroad crossing alarm and breaker did not work, a separate crossing guide had to be arranged for safety management.

In addition, even if the safety personnel to manage the crosswalk as described above is not a means to ensure the safety of the crosswalk completely, in addition to this, in order to ensure the safety of the exit side breaker detection device and obstacle detection device and time The controller and the like had to be installed and operated separately, but this not only complicates the structure of the facility itself, but also requires a lot of maintenance personnel.

The present invention has been made to solve the above problems,

By installing and operating the AI type crossing control unit by a microprocessor,

In case of emergency such as repair work of track or accident recovery work, alarm system and railroad breaker can be operated automatically regardless of the direction of train operation of up and down line, so that railroad crossing management can be managed safely without having to place a guide at the crossing. The purpose is to make it possible.

In addition, the intelligent crosswalk control unit enables to simultaneously perform not only the function of the existing crosswalk control unit, but also the exit blocking detection function, the timely control function, the signal information analysis function, and the obstacle detection function at the same time. The aim is to make a significant reduction.

In addition, by constructing the crossing control unit by an artificial intelligence microprocessor as described above, in case of failure of the crossing control system, it is possible to ensure the normal function by the duplication of the system at all times and to enable the multifunctionalization such as the self-diagnosis function of the crossing crossing control unit. To improve.

1 is a block diagram of the intelligent crossing control unit

2 is an overall configuration diagram of a controller

3 is a block diagram of a CPU

4 is a block diagram of an input / output unit

5 is a method for verifying input;

6 is a configuration diagram of the output unit

7 is a process diagram for checking output

8 is a configuration diagram of a communication card

9 is a configuration diagram of a power card

10 is a block diagram of the alarm light / bell control card

11 is a configuration diagram of a sound card

12 is a block diagram of the obstacle control card

13 is a block diagram of a failure detection transmission card

14 is a block diagram of a failure detection card

15 is a configuration diagram of a CPU card

16 is a block diagram of an FTM card

17 is a configuration diagram of a CPU card of the obstacle detecting module

18 is an overall configuration diagram of a module

19a to d are diagrams for explaining the support of the obstacle.

20 is a configuration diagram of a camera

21 is a configuration diagram of a state display unit

22 is a configuration diagram of a display panel

23 is a block diagram of a mechanical box

<Explanation of symbols on main parts of the drawings>

100: mechanical box 200: power supply

300: control unit 400: alarm control unit

500: detection unit 600: status display unit

Referring to Figures 1 to 23 the configuration of the intelligent type crossing control unit of the present invention for achieving the above object is as follows.

To protect the components of the device from the harsh external environment, the output relay 110 using a miniature relay to operate a control device therein, and the LY4 relay and seesaw relay operated by a signal input from the outside. An instrument box 100 having an input relay 120 used as a manipulator, a block terminal block 130 composed of 35 input / output terminals of 80A power and 180 60A signal input / output terminals;

Rectifier that cuts off overcurrent, performs constant voltage and constant current charging function, functions as output voltmeter switching S / W, generates signal in case of power failure, alarms when battery is over-discharged, and alarms battery circuit breaker. Power supply unit 200 including an insulation transformer that performs a function to protect the rectifier from abnormal voltage such as a lightning strike and a ground fault, a security device to secure the safety of the device, and a storage battery used as an emergency power supply when the commercial power supply is interrupted. )Wow;

CPU card consisting of control logic circuit, Fail safe relay driver circuit by monitoring the normal operation of the system, interface circuits with input / output unit and communication unit, and setting circuits for setting input / output circuit and crossing-specific information from external conditions I / O card configured to interface with the control unit, a communication board for transmitting crossing control status, fault information, etc. to the status display unit and connecting to external devices, and noise countermeasures. It detects manual input information, detects the operation of neighboring railroad crossings, the current train operation and signal, and the status of outside stops, outside stop information, etc. A control unit 300 for detecting a failure;

Alarm lamp and bell card that have both suspension alarm and general alarm and allow the other one to operate even when one of the pairs is turned off due to disability, Horn speaker card and voice card that notify by broadcast by voice and other species when the train enters When the obstacle is detected on the crossing after the operation of the device, the obstacle warning card turns on the obstacle warning light in turn, and the fault detection and failure status from the crossing device is transmitted to the adjacent station (reverse control panel or crossing fault monitoring device) through the communication cable. The fault detection card performs a function of transmitting a signal, and the fault detection card performs a function of transmitting a frequency through a communication cable to a fault crossing device of a neighboring station crossing monitoring device. Train tracking in section, safety check of various input / output, minimum alarm time setting An alarm control unit 400 which performs a function of output operation, alarm control, and input / output information of the field input;

Control the FTM module, analyze the input signal, calculate the train's position and speed, output the CPU on time and perform the self-diagnosis function, FTM card that periodically transmits and receives the set voltage, train detection unit and obstacle detection unit Power supply card to supply the power required for the obstacle, obstacle detection card to detect the presence, progress, and stop of the obstacle on the crossing, and the train passing through the crossing, and the situation of the crossing in real time to pass to the CPU A detection unit 500 including a camera;

The electronic unit includes a CPU card for checking and controlling the status of the display unit, an input card for receiving field information, a power card for supplying power to the device, and a display panel for informing the operator of the operation of the device. Detects the operation and failure information of the status display unit 600 to perform the function of displaying and storing it; Characterized in that configured.

Referring to the coupling and action relationship of the present invention configured as described above with reference to the accompanying drawings as follows.

2 to 22 show each component of the present invention separately, and illustrates the apparatus and the main circuits constituting the apparatus for each component in more detail.

The appliance box is a heat dissipation type structure that accommodates the rack frame, but the inside of the appliance box should be automatically adjusted to an appropriate temperature according to the temperature detection information so as to detect the internal temperature in the control unit. Enclosure; An output relay using a nonpolar miniature relay; An input relay using a LY4 relay and a seesaw relay as a manual operator; A block terminal block comprising 35 80A power input / output terminals and 180 60A signal input / output terminals; Other IDF panels for internal interfaces; Fuse and resistance; EMI filter and resistor; A heat dissipation fan; Power outlet; Lamps and switches; Mobile lighting equipment; It is composed.

The instrument box should be equipped to prevent the inflow of dust, dust, etc. on the side of the track, and the structure of the input and output terminal blocks should be a convenient structure for maintenance, and the sub racks can be mounted to mount various boards. .

The power supply unit should be installed in double relay as shown in the relevant drawings and should be easy to be detached. In case of a commercial system failure, the system shall be automatically switched to a spare system so that there is no problem in the operation of the load facility.When the input is AC220V / 110 ± 15%, the rated output is The voltage outputs 24 VDC out of 24 VDC / 12 volts / 5 volts, and the rate of change of the output voltage is maintained within 2%. In addition, overcurrent blocking function, constant voltage, constant current charging function, and equipment to protect the device against lightning, surge and abnormal voltage should be provided. Insulation transformer should be used at the input terminal, ON / OFF safety switch and voltage measurement on the front of power module. And a display unit for displaying an operation state, and the auxiliary power supply (battery) has a capacity to operate normally for 10 hours, and is easy to maintain and does not affect the device; Insulation transformer; A security unit; It consists of a battery

The rectifier cuts off the overcurrent, performs the function of the constant pressure and constant current charging, functions as an output voltmeter switching S / W, generates a signal in case of power failure, alarms when the battery is over-discharged, and alarms the battery switch disconnection. In the dual relay configuration, the output voltage is controlled by the operation system, and the total output system is divided into two outputs and the total output current is 0.9 * 2 (double relay). In addition, the load current is normally doubled, and in normal operation, the 1st and 2nd rectifiers are connected to the load stages in parallel so that the load current is distributed evenly to both rectifiers and the load is distributed to the normal rectifier if one rectifier fails. In such a way.

The input voltage of the rectifier is 110 / 220V and the tolerance is ± 15%. The input frequency is 60Hz, the rated output voltage is DC24V and the voltage variation rate of the output voltage is ± 2%. The passive variable voltage range is 19V-30V, the drooping characteristic is 150% -120%, the floating charge voltage is 2.17V / cell, and the uniform charge voltage is 2.4V / cell. The response speed is within 0.5 seconds and the variation range is 0-100%. The cooling method is forced air cooling. This is summarized as follows.

Item Specification Input voltage 110 / 220V (± 15%) Input frequency 60 Hz Rated output voltage DC24V Output voltage change rate ± 2% Manual voltage variable range 19 V to 30 V Drooping characteristics 150%-120% Floating charge voltage 2.17V / cell Even charging voltage 2.4V / cell Response speed Within 0.5 seconds Fluctuation range 0 to 100% Cooling method Forced Air Cooling

The insulation transformer is to protect the rectifier from abnormal voltage such as lightning and ground fault. It is a single-phase 2-wire type, and the rated frequency is 60Hz, the input and output voltage is 100V-400V, the output current is 5-300A, and the capacity is 3KVA. Insulation resistance is DC1000V Mega, more than 100M and H insulation. The test voltage is AC 10KV and the time is based on 1 minute. Impulse withstand voltage is 30KVA, efficiency is 95% and surge transition rate is below -60dB. This is summarized as follows.

Item Specification Remarks a constant Single phase 2-wire Use frequency 60 Hz Input voltage 100 V to 400 V Output voltage 100 V to 400 V Output current 5 A to 300 A Volume 3KVA Insulation Resistance 100M or more with DC1000V Mega Insulation classification Class H Test voltage Primary side to secondary side, AC10KV between ground Primary side to secondary side, AC3KV between ground 1 minute Impulse withstand voltage 30KV between primary side and secondary side, ground efficiency 95% Bibliographic transition rate -60dB or less (3KV 1.2 * 50uS) 0.0001%

The storage battery functions as an emergency power supply when the supply of commercial power is interrupted. The storage battery uses nickel cadmium and is maintenance-free and has a capacity of 200AH by adopting two "ES200-12".

As shown in the related drawings, the controller

A device for converting a conventional railroad crossing control circuit composed of ME into a microelectronic device, the CPU card having a function to realize non-blocking, non-alarm prevention and early recovery in case of a standardized railroad crossing; An input / output card; Communication board; It consists of a power card.

The overall configuration of the controller is shown in FIG.

The control unit, the hardware and software of the electronic railroad crossing control device for the standardization of the device is a single wire, a double wire, a double wire bidirectional common, the unique condition (unique information) of the crossing can be set according to the operation of the setting terminal of the input / output board without additional equipment. Make sure

In addition, the commercial and spare systems are used separately, and when the commercial system breaks down, it is automatically transferred to the spare system to perform normal functions.

Also, if the alarm device's inoperable state (no alarm) and continuous alarm state is detected due to the surrounding environment, detection device and system malfunction, etc., it will be immediately alerted.

In addition, the unstable operation is discriminated according to the input state of the railroad track crossing circuit to prevent the malfunction of the alarm control and the no alarm, and to enable the bidirectional control in the double track section.

The overall configuration diagram of the control unit is a CPU card as shown in FIG. An input / output card; Communication board; It is characterized by consisting of a power card.

The CPU card consists of a control logic circuit, a fail safe relay driver circuit by monitoring the normal operation of the system, an interface circuit with an input / output unit and a communication unit.

The input / output board is composed of input / output circuits from outside conditions and setting circuits for setting information unique to crossings and interfaces with a control unit.

The communication board transmits the control status of the crosswalk, fault information, and the like to the status display unit and enables connection with an external device.

The power board has a countermeasure against noise and supplies power to each part. It also has a low voltage (LVR) detection circuit.

The configuration and functions of the above-described apparatus are summarized as follows.

Name Contents CPU Consists of control logic circuit, fail safe relay driver circuit by monitoring the normal operation of system, interface circuit with input / output unit and communication unit I / O It consists of input / output circuits from outside conditions and setting circuits for setting information unique to crossings, and interfaces with the control unit. Communication It transmits the crossing control status, fault information, etc. to the status display part and enables connection with external devices. power It provides countermeasures against noise, supplies power to each unit, and incorporates a low voltage (LVR) detection circuit.

The control unit detects manual input (manual switchgear, manual operation, test button, obstacle button, etc.) information, and detects the current state, outside stop information, such as adjacent railroad operation information, premises train operation and signaling, exchange signs, Detect faults such as line breakage and short circuit conditions of equipment. In addition, it should be able to alarm more than minimum set alarm time, and if the alarm device inoperable state (no alarm) and continuous alarm state is detected due to the surrounding environment, detection device and system malfunction, etc. If it is judged to be in normal state by the normal state, it shall return to normal state and detailed control method for this function shall be suggested. In addition, train operation status and tracking should be possible in the control section and bi-directional control in double track section should be available. The control method according to the crosswalk and track type should be able to be easily changed without any additional equipment.In the case of the crosswalk installed in the station or adjacent to the station, the optimal control is performed by the input conditions such as signal, exchange sign, and outdoor stop. do. The list of all detectable faults should be presented, and the items are classified into warning and heavy faults according to the degree of the fault, and the operation status of the system according to the fault items is presented in detail. For other maintenance work, the test button is installed for easy maintenance, and the warning light operates during the operation time of the alarm light. The fault stop light indicates the "stop" character during the operation of the alarm light. "Failure" characters should be displayed. In the double track section, the direction indicator lights according to the direction of the train.

Alarm control performs the functions of train tracking in alarm section, safety check of various input / output, minimum alarm time setting, output operation for field input, alarm control, and input / output information transmission.

After passing the railroad crossing in the disconnection section, if the exit track is occupied for a long time (15 minutes), the alarm is released. (Time can be set). In addition, when the ascending train enters at the time of passing the ascending train in the double track section, the speed of the descending train is controlled so that the alarm continues.

The breaker control should start to descend after the set time after the alarm is triggered. The control of the crossing circuit breaker and the pole type circuit breaker should be possible, and the setting time of the notice of descent shall be adjustable. Control of breakers by manual controls and manual switchgear should be possible.

Types of failures include power failure, system failure, ROM / RAM error, interrupt time error, unique information input error, down alarm time failure, up alarm warning, continuous alarm, LVR detection, time controller failure, exit controller Failure, alarm relay failure, etc. In case of a warning, WB0 (sound card or wiring failure), WB2 (alarm type, light card or wiring failure), WL2 (alarm type, light card or wiring failure), DNR (breaker breaker) Or poor wiring).

The fault detection contents are classified by item and are as follows.

Fault type Item Fault point Cause of failure Remarks Used chapter blackout rectifier Power failure or poor wiring System failure CPU Program runaway ROM / RAM error CPU Fault in memory-related circuit Interrupt time error CPU Clock input circuit failure Poor input of unique information I / O module Short or disconnection of input circuit Bad alarm time I / O module Short or disconnection of input circuit Poor alarm time I / O module Short or disconnection of input circuit Alarm I / O module Long time train entry or output disconnection LVR detection Power supply module Low voltage Time controller failure Train detector Exit controller failure Obstacle detection department Alarm relay (R1) bad External condition Relay malfunction or wiring defect Warning WB0 Sound card Bad sound card or wiring WB2 Alarm bell Alarm bell, light card or bad wiring WL2 Alarm light Alarm bell, light card or bad wiring DNR breaker Breaker breakage or wiring fault

The CPU card will be described.

The CPU module should perform communication with various modules in real time. In addition, the CPU module must be used separately from the commercial and spare systems, sharing the same information, and automatically switching to the spare system in case of a commercial system failure to perform normal functions. All interlocking programs such as control and display of railroad crossing stable facilities, information transmission, etc. shall be conducted in accordance with the fail-safe principle and must be configured to operate on the stable side. The front panel of the CPU module displays the operating status and the status of the fault. The CPU module must be commercial, redundant, and interoperable. In addition, hardware fault detection and self-diagnosis should be provided and the crossing alarm should be activated immediately in the event of a serious failure.

The CPU unit is designed to compare and monitor whether the same output is generated by arithmetic processing with the same input. It is a structure that excludes operation error of system, transmission error on bus and data error in memory, and is composed of safety and reliable structure.

The CPU unit is composed of control logic circuit and Fail-safe relay drive by monitoring the normal operation of the system, and is composed of interface circuits with input / output unit and communication unit. Looking at the configuration of each element constituting it as follows.

First, the front configuration of the CPU is as shown in the left figure of FIG.

Manual alarm control switch is normal (normally by entering the train to the normal position), alarm (forcibly generating alarm and used during alarm check and work), warning switch recovery switch (warning is automatically recovered and artificially restored) The switch used when you want to use it, the heavy fault does not have automatic recovery function and you have to restart the system), the unique information change confirmation switch (switch that checks and saves the unique information of the crossing at the CPU when the unique information is changed in the I / O board) Consists of,

The specifications are shown in the table below.

Item Performance Remarks Control unit Control method Program control Bus comparison method Operating frequency 8 MHz Memory capacity ROM Program: 64 Kbyte or more Unique information storage: 4Kbyte or more RAM 125K bytes or more Interface method System bus method (5V) I / O Unit Interface RS 485 (19200 BPS) Interface of communication unit Operation switch input 3 points (TTL level) Alarm, warning notice, unique information confirmation switch High relay output 1 point (DC23-25V control output) Relay control Panel display 3 points (TTL level) Normal, Secondary, Warning Operating power supply voltage DC 5V (DC 4.75 ~ 5.25V) DC 24V (DC 21.6 ~ 28.8V)

CPU functions include input and storage of unique information from input / output unit, train processing and alarm monitoring according to input / output unit input information, fault processing by input / output information and self-diagnosis function, comparison processing of I, II system CPU operation information, and status occurrence It functions to burn out the message to the communication unit, to write alarm output information, and to output a high fault by the fail-safe relay drive.

The program configuration of the CPU is as shown in the right figure of FIG.

The input / output unit should be composed of commercial and preliminary dual relays, and in the event of a commercial system failure, there should be no abnormality in the operation and function of the field equipment since it is automatically switched to the preliminary system. In addition, I / O terminals must be equipped with reliable protection devices with sufficient capacity and rapid response speed to protect the device from abnormal voltage such as lightning strike and ground fault. Shall be submitted. In addition, the I / O module is a module that directly controls the field equipment. It should be configured to comply with the principle of fail-safe, including the supervisory circuit and the re-check function to prevent fraudulent information. In addition, it is necessary to be able to change various set values (breaker downtime notice, obstacle detection delay time).

The configuration of the input / output card is as follows.

Down / Upward stop switch (Normal: alarm by train tracking, alarm: keep alarm by train trace impossible due to external factors such as work), confirmation switch of down, up and down unique information (disconnection, double line, disconnection parallel, etc. Check the unique information setting of.)

This figure is shown in the left two figures of Figure 4 and the configuration of the input and output card is shown in the right figure of FIG.

The input / output card is composed of input / output circuits from external conditions and setting circuits for setting unique information of crossings and interfaces with the control module.

(Input circuit isolated from outside, unique information setting switch, CPU interface circuit, alarm relay output circuit)

The specifications of the input / output card are shown in the following table.

Item Performance Remarks I / O module External contact input 24 points Alarm condition input Alarm relay output 18 points (DC 23-25V control output) Relay control Operation switch input 4 points (TTL level) Start, stop use Enter your unique information settings 40 points Panel display 4 points (TTL level) Up / down alarm, stop use Operating power supply voltage DC 5V (DC 4.75 ~ 5.25V) DC 24V (DC 21.6 ~ 28.8V)

The function of input / output card is to operate when the system operation is normal, and the relay safety side operation is implemented by falling on alarm. Fail-safe drive power is generated by the transmitted data. When system monitoring pulse (WDT) and output data value occur, Fail-safe power supply (+ FSV) is created. To send. At this time, if FSV does not occur, there is no output because it is not transmitted to the drive. The relay operates after rectifying through the transformer. When the output data is generated, the relay falls because the output is zero. In the event of a system failure, the relay drops due to interruption of the system pulse, and if the bus data does not match, the relay drops to bus output zero. In case of failure with Open or Short at the drive stage, the relay falls because the output transformer is not passed through the DC power supply. The field installation of each device has a variety according to the conditions of the site, and the unique information is set to ensure the environment suitable for the site conditions of the installation site by integrating it and setting it as unique information of the input / output bandage. .

Switch terminal Contents Set Remarks 0 (Off) 1 (On) SW1 One Control linear Single line / double line monorail Double track 2 to 5 Setting of standard alarm time 20 to 50 seconds (2 seconds units) By combination setting table 6 7 Bidirectional presence radish U 8 Setting 1 series 2 series SW2 1 to 5 Ascent Alarm Delay Hours 0 to 31 seconds (1 second increments) By combination setting table 6, 7 Ascending alarm stop judgment 1/2/3/4 / s 8 Ascending premises alarm The presence or absence U radish SW3 1 to 5 Descending alarm delay hour 0 to 31 seconds (1 second increments) By combination setting table 6, 7 Descending alarm stop judgment 1/2/3/4 seconds 8 Descending premises alarm conditions The presence or absence U radish SW4 1 to 5 Fault Monitoring 30 seconds to 16 minutes (in units of 30 seconds) By combination setting table Set to 0 (Off) for double track 6 Ascending outdoor stop Radish / radish radish U 7, 8 Spare SW5 1 to 5 Fault monitoring of downhill entry side 30 seconds to 16 minutes (in units of 30 seconds) By combination setting table Set to 0 (Off) for double track 6 Descending stops No / Yes radish U 7, 8 Spare

The input verification method of the input / output unit is shown in FIG.

The input method outputs an electric irradiation pulse from the system to outside and detects the input change to verify the fault detection of input, contact open and alarm control, mode fault detection, heavy fault control and fault information output.

Input method of irradiation pulse detects input change after output when irradiation pulse is 1, and detects input circuit failure after output when irradiation pulse is 0.

This is shown in the following table.

Probe pulse Input Judgment Print input One One Input contact configuration 0 0 No input judgment One 0 Open input contact 0 One broken

The configuration of the output unit is shown in FIG.

Output function Relay output circuit is composed of Fail-safe circuit and controls up and down alarm, breaker relay and heavy field relay. WDT output device, bus comparison The relay is dropped when a match occurs and the relay drops when a failure occurs among all parts related to the output circuit. Relay drop control In normal operation, the relay falls within 0.5 seconds.

7 shows the process of checking the output.

That is, the state of the output relay is input again and compared with the output information to determine whether the normal departure.

The communication card transmits the crossing control status, fault information, etc. to the status display unit and enables connection with external devices. It sends other situations to the self-diagnosis, sends information to the status display via serial communication, and monitors for failures through the interface with the external device at the crossing.

The configuration of the communication card is shown in Figure 8, the specifications are shown in the following table.

Item Performance Remarks Communication card Control method Program control Operating frequency 16 MHz Interface method RS-485 (19200 BPS) Interface with Control Unit External monitor input 8 points (contact input) External relay contact input External monitor output 8 points (contact output) Fault information output Panel display 2 points Power, normal External device interface RS 232C Status display part RS 422 Spare RS 232C Spare Operating power supply voltage DC 5V (DC 4.75 ~ 5.25V) DC 24V (DC 21.6 ~ 28.8V) Relay control

The power card supplies stable power to the control unit and detects the low voltage of the input voltage.The DC / DC converter has a rated output within ± 2% even when the rated output voltage (24 VDC) changes ± 25%. The pulsation rate (pp) is to be kept below 1% of the rated output voltage. The rated current is more than 3 times of the rated power consumption, and it supplies stable power to the controller by embedding its own abnormal voltage prevention circuit and stabilization circuit.

The front configuration of the power card is shown in the left figure of FIG.

The power switch turns the output power on and off, and the measurement terminal provides the measurement terminal to check the output power.

9B is a configuration diagram of the power supply card, and the specifications of the power supply card are shown in the following table.

Item Performance Remarks Power Unit Input voltage DC 24V (DC 21.6 ~ 28.8V) 3A or less Output voltage DC 5V (DC 4.75 ~ 5.25V) Less than 10A LVR (Low Voltage) Detection Voltage DC 22V (DC 21.0-23.0V) Pulsation Rate (p-p) 1% less than

The alarm control unit inspects the line of bell, voice, and suspension type alarms when there is no alarm control signal, and checks the output feed-back at the bell, voice, and suspension alarm output lines during alarm control. It is to check alarm control status with test switch,

The existing railroad crossing alarm system is integrated and can be used by directly connecting to the output terminal of the new railroad crossing system without changing the wiring of the field equipment, and the alarm control should basically perform the fail-safe output as the safety first priority.

The whole configuration consists of alarm card, bell card, sound card, horn card, obstacle control card, fault detection and transmission card, and output relay.

Operation requirements of alarm / bell control card are as follows.

Alarm light control: It should be able to use two suspension type alarms and two general type alarms at the same time, and the number of flashing of alarm lamps can be adjusted 50 + -10 times per minute, and the other one is operated even if one of the pairs goes out due to failure Be sure to

Alarm type control: The number of alarm types can be adjusted 70 ~ 100 times per minute per species, and the other one is operated even if one is stopped due to failure.

The front configuration diagram of the alarm lamp / bell control card is shown in the left figure of FIG. 10, and the block diagram of the card is shown in FIG.

The performance of the control part of the alarm lamp shall be rated at DC 24V +-20% and the number of flashing times is 50 +-10 times / minute.

The operation outline of the alarm light / bell,

The R1 relay is supplied with the falling conditions of the relay, and when the oscillation of the U.J.T Q1 in the card signals the gate (G) of the SCR, the alarm flashes.

The flashing of the alarm lamp is performed by alternately restoring the SCR by charging and discharging the capacitors connected to the DP of the two SCR anodes (A) in the card.

In case of failure of the oscillator, that is, the UJT side, the monitoring relay RL1 is restored and both bulbs light up, and the LED lights on the front of the card to indicate the failure.

In case of maintenance of alarm light / species, when the alarm light does not blink and all the lights are on, the oscillator is broken. Check the oscillator. If it is not lit or flashing, check the input power supply and check the test test of the card. Turn it off to check the operation of the alarm lamp.

The function of alarm type control part is rated voltage DC 24V + -20%, and other kinds of times is 70-100 times / minute.

The operation overview of the alarm type control part is

The alarm type starts when the power is supplied under the R1 relay drop condition of the relay part and the oscillation of U.J.T in the card starts.

The seeding is started by applying a signal to the gates G of the two SCRs in the card, and the seeding is continuously made by alternately restoring the SCR by charging and discharging the capacitor connected to the anode A side.

Maintenance of alarm type control part should check power of input side when alarm type is not different, check alarm type when power supply is not abnormal and alarm type does not work.Always turn off alarm test by turning off test test of card Check it.

The sound card,

Each day and night setting time must have volume control function from start of alarm to completion of breaker descent and from completion of breaker descent to end of alarm bell.

With minimum volume control at rated voltage, it should be 40dB of KSC 1502 (normal sound level) C class on the front of 1M, and it should be more than 130dB when maximum.

When the loudspeaker and the voice guidance alarm are at the rated voltage to the maximum volume control, when one of them stops, 80dB or more should be maintained.

The alarm sound and announcement of the voice guidance alarm is by railroad 6330-3165 [crossing control unit].

Voice guidance alarm and horn speaker module should use memory IC, and horn speaker sound should be different kinds of sound and it should be able to adjust 70 ~ 100 times per minute per species.

The front configuration diagram of the sound card is shown in the left figure of FIG. 11, and the block diagram is shown in the right figure of FIG.

If you look at the overview of the sound card,

The sound card operates when the train enters the crossing crossing section and R1 falls, and also operates when the TEST switch of the back / bell control card is turned off.

The voice module outputs the voice from the voice controller, outputs the voice by D / A conversion, and the voice announcement is output by the volume controller.

The volume can be adjusted, and the volume can be automatically adjusted according to the circuit breaker falling condition and day / night time setting.

If you look at how to adjust the time and day / night time of your voice card,

Time setting method: Adjust with button "-" "+" and the unit of adjustment is 1 minute.

Mode setting method: Adjust it with "P2 *" of the clock, and it is set at the time of shipment. Do not change it.

Day / Night Setting method: Adjust with button "" and press "" button once as following figure A. Set weekly time with button "-" "+" and press "" button once as following figure B. Set night time with button "-" "+" and press button "P" once to complete time setting.

If you look at the volume control function,

Day / Night: Adjust by front daytime variable resistor, Front by nighttime variable resistor,

In case of short-term descending: Adjust with circuit breaker descent adjustment variable resistor,

Voice interruption function when train enters the railroad crossing: When the train enters the railroad crossing, the voice output is stopped by DDC, CDC in the controller mode and ATR and BTR in the track circuit method.

Line and audio output fault information output function,

Check the line at normal times: Check the line until the train enters the crossing, express the voice up / down fault of the fault detection II card at the time of line break and send the information to the fault detection transmission card.

Voice output detection function when train enters: When the train enters the railroad crossing, it detects the voice output and if it is below 50dB, it shows voice up / down fault of the fault detection II card and sends the information to the fault detection transmission card.

If there is no announcement sound, check the power on the input side. If there is no power and the announcement sound does not work, check the alarm announcement speaker and LINE (line). Turn off to check the announcement sound operation.

The horn card controls the broadcasting of the crossing when entering the train. The operation overview is as follows.

The horn card operates when the train enters the crossing crossing section and R1 falls, and it also operates when the TEST switch on the back / bell control card is turned off.

The horn module outputs a bell from the horn control unit, outputs a horn by D / A conversion, and a bell broadcasting comes out by the mixing controller.

The other operation outline has the same function as the sound card. (When using the horn module, be sure to check the wiring of the bankrupt.)

The sound can be adjusted by the sound of the horn speaker (70 ~ 100 times / minute).

If the obstacle is detected on the crossing after the operation of the alarm device, the obstacle warning lamp should be turned on and off in turn. The obstacle control card should have the capacity to control up to four units. In case of failure, it should be controlled to turn off.

The front configuration diagram of the obstacle control card is shown in the left figure of FIG.

Looking at the function test switch operation method of the obstacle control card,

The power switch should be normally turned on, the upper and lower wire control test, and the switch should be turned off, the functional test can be performed by sorting, and it should be turned on normally.

In addition, explaining the operation of the LED on the front of the controller,

In normal operation, LED should be turned on at POWER, UP / DOWN test, upper line <A1, A2, A3, A4, A5>, lower line <B1, B2, B3, B4, B5>, obstacle detection or emergency During stop S / W operation, if it is in the baling state, turn on only POWER, A0, B0, FLR. In case of cable break failure, the operating status indicates the disconnection of the field cable going to the trouble warning lamp corresponding to A3 when the wire A3 does not light up. A3 is turned off and CHR is turned off at the same time. The fault indicator is turned off to indicate a fault. The information is entered as a fault detection condition and the fault detection transmission is interrupted, so that the fault crossing device can check the fault. In addition, when one or two or more LEDs of B1, B2, B3, B4, and B5 of the A1, A2, A3, A4, and A5 of the upper line are turned off, the lights are turned off at the same time to indicate a failure. When the control circuit is broken when the obstacle is detected or the emergency button is handled, the fault detection relay (FLR) drops and the upper lines A1, A3 and A5, the lower lines B1, B3, and B5 illuminate continuously.

The configuration diagram of the apparatus is shown in the right figure of FIG.

The performance of the obstacle control card is shown in the following table.

Item Performance Voltage Voltage 24 VDC (21 to 27 VDC) electric current normally 0.4A At emergency stop 0.8 A Turn 50 ± 5/1 minutes Lighting method 1 lighting method Gojiang 1) It monitors the disconnection of the cable from the controller to the trouble warning light, and when it is disconnected, the fault line LED turns off and the fault indication CHR LED goes off. 2) In case of control circuit failure, the fault detection relay (FLR) L1, L3, and L5 fall and turn on continuously. 3) Trouble warning lamp The lower fault indicator is normally lit and the fault is off.

An overview of the operation of the device is as follows.

Inside the obstacle control unit, a control relay (EPR), fault detection relays (CHR, FLR), and a fault detection unit fault detection relay (SYS) are built in. The control unit should normally excite the control relay (EPR). That is, when the emergency stop S / W is operated, the control relay (EPR) falls and assigns a start command to the trouble warning lamp. Emergency stop S / W should be ON normally.

The fault detection module allows a fault detection transmission card, a fault detection I card (except), a fault detection II card and a fault detection transmission card SP (used for addition) to be mounted on the card file. It functions to transmit the frequency of the fault detection and the fault situation from the crossing equipment to the adjacent station (station control panel or the crossing crossing monitoring device) through the communication cable.

The front configuration diagram of the failure detection transmission card is shown in the left figure of FIG. 13, and the card block diagram is shown in the right figure of FIG.

The fault detection transmission card is a card that transmits a frequency of a fault detected by the fault detection device to a nearby station crossing fault monitoring device through a communication cable.

The characteristics and frequency classification of the fault detection transmission card are as follows.

Relay operation voltage of this device: DC24V + -2V, relay contact number: 2F 2B, current consumption: 35mA or less, card input voltage: DC24V + -0.5V.

Frequency range: 0.625 KHz ~ 2.625 KHz (250Hz step), 2.625KHz ~ 7.125KHz (500Hz step), Transmit voltage level: 300mV or more (at line resistance 600OMEGA).

Frequency classification by type is shown in the following table.

Sending card frequency Frequency (KHz) ± 20Hz Sending card frequency Frequency (KHz) ± 20Hz T301T302T303T304T305T306T307T308T309 f1f2f3f4f5f6f7f8f9 0.6250.8751.1251.3751.6251.8752.1252.3752.625 T310T311T312T313T314T315T316T317T318 f10f11f12f13f14f15f16f17f18 3.1253.6254.1254.6255.1255.6256.1256.6257.125

The fault information of each detection card is as follows.

Fault detection II is WB0, WB1, WB2, V1, V2, H1, H2, WL1, WL2, DNR, obstacle detection device is obstacle detection part and control unit, manual switch is manual switch condition, time control device is FTE, exit The inter-side detection device is an MCE.

If any of the above information does not satisfy the condition, the transmission relay Se in the failure detection transmission card falls. Also, unused information among the above fault detection information should be used by common at 200 terminal referring to Fig. 7 and 8.

Frequency Level Adjustment and Measurement Method The fault detection transmission card and the tester connecting cable are provided for measurement using the existing tester (YK-100). (Keep the connecting cable for the tester)

The fault detection card monitors bell fault detection (WB0, WB1, WB2), fault detection (WL1, WL2), breaker fault detection (DNR), voice fault detection (V1, V2), horn fault detection (H1, H2). do.

The front configuration diagram of the failure detection card is shown in the left figure of FIG. 14, and the block diagram of the card is shown in the right figure of FIG.

An operation overview of the device is as follows.

The bell fault detection (WB0, WB1, WB2) operates WB0 when R1 is excited in the normal state.

WB1 and WB2 are operated because + voltage is applied to Q1 and Q2 Base through the longitudinal winding. When R1 falls and vertical card is operated, (-) is operated alternately at its output. Oscillation detection relay WB0 is kept excited by this operation.When vertical card stops oscillation, only + appears at both output terminals. Falls. D1 and D2 diodes prevent +24 from crossing over to WB0.

When oscillation of species card is normal, Q1 and Q1 Tr are turned off only when (-) appears in species card. During that period, WB1 and WB2 are operated by condenser.

If (-) continues for more than the time determined by the RC time constant, the WB1 or WB2 diode prevents the + voltage from crossing on the other output side.

The operation of the back fault detection WL1, WL2 is the same as the operation of the WB1, WB2 of the end detection.

Breaker fault detection (DNR)

In normal state, voltage is applied to the base of Q2 with make contact of alarm control relay R1 and 85。 ~ 90。 contact of left and right breaker. After about 10 seconds, the cutoff interval is within 0。 ~ 5 。.

Then, voltage is applied to the base of Q2 again with the break contact of R1 and the 0。 ~ 5。 contacts of the left and right breakers.

After R1 drops, the DNR is maintained by the C4 (470 mu F) condenser for about 20 seconds until the left and right breakers drop between 0 ° and 5 °. The same is true when R1 is activated and the breaker rises.

If either of the left / right breakers is not between 85。 ~ 90。 in the normal state or if R1 falls and either of the left and right breakers is not located between 0。 ~ 5。 during the alarm, it will be approx. After 20-30 seconds, the DNR drops, indicating that the breaker is in normal operation.

Voice fault detection (V1, V2) receives and processes the signal detected at the output of the voice module, and detects the line disconnection and voice output failure. In places without voice module, turn on No. 2 of DIP S / W3 and No. 3 of DIP S / W4. Jumper 200 wires.

Horn failure detection (H1, H2) receives and processes the signal detected at the output of the horn module, and detects line break and poor horn output. In places without a horn module, DIP S / W3 No. 3 and DIP S / W4DML No. 4 are turned ON.

The output relay uses a miniature relay (NR4, N2, R2).

The upper SR is operated when the alarm is going up and the up direction indicator is operated, and the lower SR is operated when the descending alarm is controlled, and the lower direction indicator is operated, and the R1 and R1PR are operated when the alarm device is operated. Activate horn, beacon, stop sign. R2 and R2PR operate when the breaker descends.

-High fault: Operate the fault transmission card, fault indication lamp and operate the controller to safety side.

-Upper and lower CR2: Control the upper and lower circuit breakers respectively when detecting the exit block.

All detection sensors of the detection unit are configured to be easy to maintain without trouble on track repair work and vehicle operation.

The basic configuration of the detector consists of a train detector and an obstacle detector, the train detector consists of a CPU, a track monitoring (FTM) and a power supply, and the obstacle detector consists of an obstacle detector card and a camera.

The train detection module performs the following functions.

-Train operation status and tracking in the control section is possible.

-Bi-directional control is possible in double track section.

-As long as the FTM card is secured as many as the crossing tracks, the control method according to the crossing and track type can be done without additional equipment.

-The alarm point is transmitted to the closed circuit by the controller, and when the train is detected, the output is cut off.

-The output signal is as follows.

0 Fault: Output cut off when fault occurs as a result of self diagnosis

0 Absolute alarm: Absolute alarm output is blocked 20 seconds before crossing

0 Upward Entry: When the train enters an uphill track, the output is blocked

0 Lower entry: When the train enters the upward track, the lower entry output is blocked.

0 Phase control: Cut off phase control output at up alarm

0 LOW CONTROL: Lower control output cutoff at Descending alarm point

0 Upstream control: Output is cut off at the alarm point when entering the up line in reverse

0 Unloading control: Output is cut off at the alarm point when entering the downstream in reverse

0 Transmits train location to status display via RS-485 communication

Train detection module having the same function as above,

Interface with existing train detection equipment (track circuit, controller, time controller, etc.) should be possible. Train detection sensor should present the best detection method to enable the operation and tracking of trains and the calculation of train speed. And ease of maintenance should be ensured. In addition, the train detection information is used for the time-of-day alarm control and the like, and the optimum time-time alarm is controlled according to the deceleration and acceleration of low speed, high speed trains and trains using the train detection information.

In the configuration of the train detection module having the above characteristics, the time difference from the pulse returned by applying a pulse to detect a train by applying a pulse to one track of the track and receiving a pulse on the other track (Propagation Delay Time) It measures the propagation delay time and detects the operation status, tracking and train speed of the train across the entire track. It is characterized by the following table.

The train sword support (FTM) measures the distance using the property that the speed of light does not change, as shown in the following figure. When the pump is received on one side of the conductor and the pump is received on the other side, the distance is calculated by measuring the propagation delay time between the side where the pulse is applied and the received side.

Probe installation method is as follows.

A: Connect two transmitting and receiving lines to one side of the track.

B: Connect two receiving lines with a distance of 20M on both sides of A from the center of the track.

C: Connect both ends of the track. (Both ends are train speed 110Km / h, 917M when alarm time is 30 seconds)

When the track you want to use is using the existing track method,

Impulse method replaces impedance bond with C, DC Bias method replaces transmission transformer on one side and Bias relay on the other side, and controller method installs C by avoiding the detection range of 201 card.

If the length of the track is short due to insulation, secure the track over the control distance, add FTM cards as many as the number of tracks, and connect in the same way for each card.

The signal detection method of the train detection module is described as follows.

A) Send pulse to A every 100ms.

B) Install two and transmit them alternately to increase the reliability of the detector.

C) If a pulse is sent to the rail, if the train is DQJT, the signal from A is received through C through B.

D) A signal exiting A is received at B at regular intervals.

E) When entering the train, it is received by B through the train as the track disconnection of the train.

F) At this time, the received signal is received by B as soon as the train enters.

G) When entering the train, B in the entry direction is received as much as the entry distance.

H) Analyze the direction of train by detecting the time difference between them.

To ensure the stability of the train detection module,

A) If there is no train, the signal from A is received through C through B.

B) In case of self failure, alarm output is cut off and alarm continues.

C) The transmission signal has its own feed-back function to monitor the transmission.

D) In case of disconnection of A, the cycle of received signal is changed (one disconnection) or there is no receiving signal, so the operation of safety side

E) When the break of B is not received, it operates on the safe side.

In case of disconnection of the line, imbalance occurs in the signal received by B. It analyzes this and operates on the safe side.

The distance is calculated by the following formula.

Speed of light: C = (299,700,000 m / sec = about 300,000 Km / sec),

Delivery delay time: t seconds

Measuring distance: S seconds

Measuring distance S: S (m) = C (m / S) X t (S) 2 ---- (1)

The device uses a 50 MHz Timer / Counter to ensure accuracy Can be measured in units.

The resolution of the device is ± 6m: 300,000,000 (m / s) x 1 / 50,000,000 (s) = 6,

The detection of the train, when calculating the maximum speed of the train at 140 km / h, results in a minimum alarm control distance of about 1.2 km.

(140,000m 3,600 s x 30 s = 1167 m)

When detecting the train entering from 1.2Km ahead, the receiving distance is 2.4Km, and the propagation delay time t becomes 8muS in (1).

The position measurement of the train measures the propagation delay speed and multiplies the speed of light to measure the position of the train.

s = t x c;

s: train position (m), t (transmission delay time: measured value), c: speed of light (m / s)

The speed and direction of the train is calculated by continuously measuring the position of the train at regular time intervals and calculating the change in reception time for each time interval to calculate the train speed and direction.

+ If the first measurement position is s1 (m), the next measurement position is s2 (m) and the train speed is v (m / s)

+ Speed of train v

v = (s2-s1) / T (m / s)

+ At this time, if the sign of speed is negative, the approach is made. If it is positive, it is out of order.

The CPU card functions as follows.

A) Built-in program for tracking train location and speed

B) Automatic switching to spare system in case of failure of one or several parts in commercial system due to dual relay configuration of CPU

C) Alarm output only when 5 or more pulses are detected

D) If the transmitted signal is not received within 200 muS more than 5 times, e.g., disconnection of the line.

If the detection speed is 45Km / h or less in preparation for the possibility of acceleration of the train, treat it as 45Km / h.

F) RS-485 communication function for information exchange with units that are opposite each other in this TDj in double relay operation.

G) FTM module control

H) Input and save unique information necessary for timely alarm

I) Create timely output information

The front configuration of the CPU card functioning as described above is shown in FIG.

TEST switch can artificially alarm up and down during the train detection test. The RESET switch restarts the system. The communication port is reserved. The status display is as follows.

Green light when power is applied, green light when operation is normal, red light when failure occurs, FTR means green light reaching 20 seconds before crossing, AFR, BFR green light when train enters track, APR, BPR is normal Green light when the train enters the right time in the direction, CPR, DPR: Green light when passing the crossing, EPR, FPR turns green when the train enters the right time in the reverse direction

The specifications of the device are shown in the following table.

Item Performance Remarks CPU Control method Program control Operating frequency 40 MHz Memory capacity ROM Program: 64 Kbyte or more RAM 128 Kbyte or more Interface method TTL level (5V) Interface with FTM Cards RS 485 Status display unit and interface Setting switch input 2 points (TTL level) Line type and alarm start time Print 8 points (DC23 ~ 25V control output) Fixed time information output to the controller Panel display 12 points (TTL level Normal, operation, fault, FTR, AFR, BFR, APR, BPR, CPR, DPR, EPR, FPR Operating power supply voltage DC 5V (DC 4.75 ~ 5.25V) DC 24V (DC 21.6 ~ 28.8V) For pulse control

The FTM card transmits and receives the set voltage to the track circuit 20 times per second (50m / sec), and optically insulates the transmitted and received signals in real time and transmits the information to the CPU. Same as FIG.

The power supply DC / DC Converter (DC18-32V / DC5V, 3A) to each board.

Obstacle detection module,

Interface with the existing obstacle detection equipment (block detection device, detector between the exit block),

The obstacle detecting device should detect the presence of obstacles on the crossing, the direction of travel, the stop condition, and the train passing the crossing.

The obstacle detection information shall be used for special signal emitters, detection between exit blocking, and voice guidance alarm.

In addition, the optimal control method should be suggested based on obstacle detection information, and reliability and ease of maintenance should be ensured.

If the obstacle is detected on the crossing while the breaker is descending, the exit side must be controlled so that the vehicle can safely exit the crossing. If the obstacle is removed, the vehicle must descend immediately. Make sure you descend completely seconds ago

The obstacle detection module is a special camera (CCD) for monitoring the crossing environment, and monitors the presence, obstacle, and stop state of obstacles on the crossing. The configuration is as follows.

designation Contents CPU Analyze the signal from the camera, calculate the presence of obstacle and the direction of travel, and output it. camera It captures the situation of the crossing in real time and delivers it to the CPU.

The CPU card has built-in programs necessary to detect obstacles, handles faults by input / output information and self-diagnosis function, creates control output information between obstacle detection and exit side interruption, and makes the breaker immediately descend when the obstacle is removed. If the obstacle is detected on the crossing while the breaker descends, the vehicle will exit the crossing safely by controlling the exit LCR output, and if the obstacle is removed, the output will be cut off immediately, and at least 15 seconds before the train enters. In doing function to let you descend

The front configuration is the same as the left figure of FIG. 17, the configuration diagram is the same as the right figure of FIG. 17, and the specifications are as follows.

Item Performance Remarks CPU Control method Program control Operating frequency 40 MHz Memory capacity ROM Program: 64 Kbyte or more RAM 128 Kbyte or more Interface method TTL level (5V) Interface with video camera RS 485 Interface with video surveillance device (additional production if added) Print 5 points (DC24V control output) Output of obstacle detection information Panel display 7 points (T sea level) Power, operation, fault, LCR, RCR, LMR, RMR

The TEST switch of the CPU card can detect left and right obstacles artificially during the obstacle detection test, the RESET switch restarts the system, the communication port is reserved, and the status indication is as follows.

Green light when power is applied, green light when operation is normal, red light when malfunction occurs, green light when LCR moves to the left, green light when RCR moves to the right, LMR : Green light when obstacle is detected on the left side of the crossing, RMR: Green light when obstacle is detected on the right side of the crossing

Referring to the obstacle detection support with reference to Figure 19a, b, c, d as follows.

1) First, set the image recognition area.

When the device is first installed on site, it is possible to draw a picture of the area to be detected. As shown in the figure, the area is set, the area drawing can be set simply by operation, and the size of the area can be appropriately adjusted according to the situation of the area. The rectangle must be at least slightly larger than the area to be detected.

1 and 5 are areas used for detecting breaker breakage detection, breaker normal operation detection and signal violation detection, and areas 2 and 4 are areas used for train entry detection and train passing detection. Zone 3 is used for obstacle detection and exit detection.

The area required for detection can be increased or decreased, and the smaller the detection area is, the faster the calculation can be performed.

In FIG. 1, image recognition may be performed in the saga of the regions 1-5, and may be further added or removed according to the use position. In addition, the position of each region operates regardless of whether they overlap or fall.

2) Recognize train entry and exit.

Areas 2 and 4 shown in the figure detect the train entering and passing the train. The camera acquires a cumulative average of these parts before the train enters. The cumulative average value obtained is a constant value when there is no train, but when the train enters the location, the result value of that part is increased. This can be used to detect the train entering.

This method is to recognize and analyze the gradient by the average value in the field of image recognition.

Fig. 19B shows the movement of the average value in areas 2 and 4 during train progress. In the figure, the horizontal axis shows time and the vertical axis shows the movement of the mean value.

In Article 19b, if the train proceeds from left to right at the same location, the mean value first rises in area 2 on the left in time. After a certain time, the average value on the right rises. On the contrary, if the train moves from right to left, the average value of the area 4 is increased first.

The entrance, passage and direction recognition information of the train recognized in this way is applied to the control device to provide information on the crossing status.

3) When explaining the operation of the obstacle detecting device,

Zone 3 is divided into very fine horizontal and vertical zones. Normally it can be changed depending on the size of the crossing, but it is usually divided into 20x20 blocks. The divided block calculates the average value in the block. It is determined that an object exists when the average value increases or decreases from the obtained average value to a predetermined value or more. When the object does not move for a predetermined time in the increase / decrease information, the obstacle is alerted after determining using the size and aspect ratio of the object.

If an object does not move when there is an object as shown in Fig. 19C, an obstacle warning is issued. The size of the area occupied by the object, that is, the size of the object, can be calculated based on a known lens magnification and distance to the camera. In addition, the size of the occupied object can be calculated separately, and the size of the object can be used to determine the type of object. In this way, the method of identifying the type of object is determined by using Neural Network.

4) Explaining the operation of the outlet detection device,

In FIG. 19A above, region 3 is used as the outlet side detection and the obstacle detection position.

Zone 3 is divided into very fine horizontal and vertical zones. Normally it can be changed depending on the size of the crossing, but it is usually divided into 20x20 blocks. The divided block calculates the average value in the block. It is determined that an object exists when the average value increases or decreases from the obtained average value to a predetermined value or more.

When objects are caught in several blocks as shown in Fig. 19D, it is possible to estimate the direction in which the objects move by arranging them on the time axis. In FIG. 19D, at the time t = 0 on the left side, the object appears in the upper block, but after the time t = 1, it can be seen that the object has moved slightly downward. In the case of t = 2, it can be seen that the object has moved more than the initial position. In this way, the direction of movement of the object is estimated. The tracking of the moving object is determined as one object when the blocks occupied by the two objects are attached. Thus, moving objects with spaces are tracked differently.

Camera A / D Converter digitally converts the analog light quantity captured by CCD, and color separation unit (Color camera) separates the changed digital value into density value and saturation value, and white balance part shows the density distribution of the whole screen. It has uniform characteristics, the interpolation section compensates for the point-to-point value, the contour emphasis section sharpens the outline of the object, the gamma processing section realigns the density according to the visual characteristics of the person, and the RGB matrix section outputs The video values are aligned with the signal, and the D / A converter converts the processed digital data into analog and outputs the data to the outside.

The status display unit detects and stores the operation and fault information of the electronic unit.

Operational information includes field equipment operation, detector operation and measured values, power supply operation and measured values, manual handling equipment operation, information on adjacent crossings and station areas, and operations by maintenance work.

Failure information includes failure of each module, power failure and power failure, and field equipment failure.

The storage information should be able to withdraw operation information 3 months failure information more than 1 year by FIFO method and easy to repair.

The display panel should be connected to the CPU module to display the operation status in the form of text or graphic. It should be able to input user setting value by keyboard, and it is configured to enable analysis function and print function.

Display function includes field equipment operation status (alarm type, lights, voice alarm, breaker, obstacle detection device, manual handling, warning lights, etc.), input information operation status, power supply operation status, train operation status, failure status, crossing Information, maintenance status, detector operation status (including electrical characteristics such as operating voltage and current), first aid method, and other functions necessary for maintenance.

Control functions include safety equipment operation control, system reset control (system restart), time correction (standard time correction), control function user password setting function, and other functions necessary for maintenance.

Analysis functions include statistics and analysis of failures, statistics and analysis of operation status, and other analysis functions required for maintenance.

With 2C for 15% shielding of communication cable, the transmission speed is configured to enable 2400, 4800, 9600BPS communication, and it provides remote monitoring, control function and test method at up to 32 railroad crossings and main or branch sites.

RS-232C communication port connector should be installed on the front panel of the CPU module to enable inspection and control.

The overall configuration diagram of the status display unit is shown in FIG. 18, and the specifications are shown in the following table.

Item Performance CPU Kinds 16 Bit or more Operating frequency 40M㎐ or more Memory ROM 64 Kbyte or more RAM 128 Kbyte or more Flash 4Mbyte or more clock Real-time standard time correction using GPS System defect detection Watchdog timer Communication method Out RS-232C, 38400/19200/9600/2400 BPS ± 0.01% inside RS485 Power source DC 5V INPUT Interface Photo coupler Input current (mA) 20mA (24V) Commercial power DC 5V LCD form Backlight method How to display 128 x 64 Dot Power source DC 24V POWER Input voltage DC 18V to 32V Output voltage, current 5V, 3A

The function of the status display unit is based on FIG.

1) This device should be processed in the order of information input => storage => fault judgment. 2) Data stored in the detection device should not be changed by external operation such as analysis device. It should be kept for more than 24 hours even if the supply is stopped. 3) The scanning time of this device should be 100msec or less, and the information storage method should save the date, time and information status in real time when the information is input. In addition, the memory should be easily expanded as needed, the occurrence and recovery of failures should be recorded and automatically backed up with time, and the unique information of the crossing should be set.

Crosswalk operation status detection detects the operating and failure conditions of crossing alarms, breakers, and other devices in real time.

Alarm device (control relay) operation information is based on the following table.

division Relay Name Single line AFR, BFR, APR, BPR, ASR, BSR, FTR, R1, R2 Double line AFR, BFR, APR, BPR, EPR, FPR, ASR, BSR, FTR, R1, R2

On-time train tracking information tracks train locations in 10M increments.

The controller information between the exit blocks is (LCR) for the left circuit breaker control and (RCR) for the right circuit breaker control.

Circuit breaker operation information is left breaker descending information (0。) CL4, left breaker ascending information (90。) CR5, right breaker descending information (0。) CR4, right breaker ascending information (90。) CR5,

The maintenance switch information is (TS),

Manual handling information includes guide operator switch breaker ascending information (CSH), guide operator switch breaker descending information (GSL), unmanned manual switch information (MS), obstacle control switch information (OS), phase special signal emitter information (UOR) ), Special signal emitter information (DOR).

Other reverse mouth conditions are UKR, DKR.

Fault information includes power failure (PWR), heavy fault (ERR), no alarm (CXR), low voltage (RL1), continuous alarm (RL2), time delay (FTE), exit failure (MCE), voice card failure (WB0 ), Alarm bell failure (WL2), breaker failure (DNR).

The fault determination should receive the fault information and save it, and determine the fault location according to the following table.

Relay name PWR ERR CXR RL1 RL2 FTE MCE WB0 WB2 WL2 DNR blackout 0 Used chapter 0 No alarm 0 Low voltage 0 Alarm 0 Fixed time controller failure 0 Outlet controller failure 0 Voice card malfunction 0 Alarm bell failure 0 Alarm light 0 Breaker breakdown 0

The display panel is connected to the CPU module and displays the operation status, respective detection information and fault status in the form of LCD or LED.

The front structure of the display panel is shown in FIG.

The display method of the display panel will be described below.

The normal display state is as shown in FIG.

A) First row (row): year / month / date hour: minute: second, b) Second row: display of running CPU status (ONP1: during commercial system (first system), ONP2: preliminary system (second system) M), c) Third row: Train progress status, d) Fourth row: Failure status, e) Fifth row: Alarm relay operation

An example of display of the third row is as follows.

Normal operation: Normally there is no train and electronic crossing is normal. Entering ascending: Entering train crossing ascending and descending: Entering train crossing ascending, descending alarm: Indicating that the alarm is being operated by ascending train, descending alarm: to descending train Indication of alarming, passing: Crossing, crossing: Marking position of train in 10M units

An example of the fault status display of the fourth row is as follows.

ERR: Heavy failure, PWR: Power failure, CXR: No alarm, RL1: Low voltage, RL2: Continuous alarm, FTE: Time failure, MCE: Exit failure, WB0: Voice failure, WB2: Alarm failure, WL2: Alarm failure , DNR: Breaker Breaker

The alarm relay operation status display of the fifth line indicates ASR, BSR, R1, R2, CR4, CR5, etc. in upper and lower case letters. (Operation: Uppercase, No Action: Lowercase)

The time of maintenance work is as shown in Fig. 21B, and a) First row (ROW): year / month / date hour: minute: second, b) Second row (ROW): indicates CPU operation status and checking, C) Third row (ROW) Fourth row indicates train progress and fault status d) Fifth row (ROW) Sixth row is relay and fault description.

The display example of the second line above is TEST: checking, SEQ: checking relay status, ERR: checking fault status.

The mode switch function is as follows.

RESET: Restart the system, MODE: Time setting, fault information switch, SHIFT: Left and right arrow keys, DOWN: Used to see the previous data, UP: Used to see the next data

A) Press the Test switch on the CPU board to change to the relay check mode.

Since relay status cannot be displayed on one screen, check relay status sequentially by using Up and Down keys.

B) Press Mode key in relay status check mode to change to fault occurrence information check mode.

Up and Down keys can be used to check up to 10 past faults with the time of occurrence.

C) Press the Mode and Down keys simultaneously in the test mode to change to the time setting mode. Use the Shift key to change the cursor position in the order of year / month / day hour: minute: second, and set the time by increasing or decreasing the number using the Up and Down keys. After finishing the time setting, press Mode and Down key again to return to normal mode.

The device must be connected to a portable PC to store the stored information, and the stored information can be analyzed and printed.

According to the present invention configured as described above,

Crossing tracks of railroad crossings make crossing alarms and breakers irrespective of the driving direction of trains, thereby effectively eliminating the cause of crossing accidents.

It also drastically improves the management of railroads by eliminating the need for temporary crosswalk management to prevent accidents.

It also has the effect of improving the work welfare by automating the work of not only the public officials who manage the crossings, but also all public officials under the related management system.

In addition, it is possible to reduce the budget by integrating the various additional devices of the crossing alarm and blocking device.

Claims (8)

To protect the components of the device from the harsh external environment, the output relay 110 using a miniature relay to operate a control device therein, and the LY4 relay and seesaw relay operated by a signal input from the outside. An instrument box 100 having an input relay 120 used as a manipulator, a block terminal block 130 composed of 35 input / output terminals of 80A power and 180 60A signal input / output terminals; Rectifier that cuts off overcurrent, performs constant voltage, constant current charging function, functions as output voltmeter switching S / W, generates signal in case of power failure, alarms when battery is over discharged, and alarms on battery switch disconnection. And a power supply unit including an insulation transformer for protecting the rectifier from abnormal voltages such as lightning and ground faults, a security device for securing the safety of the device, and a storage battery used as an emergency power supply when the commercial power supply is interrupted. 200); CPU card consisting of control logic circuit, Fail safe relay driver circuit by monitoring the normal operation of the system, interface circuits with input / output unit and communication unit, and setting circuits for setting input / output circuit and crossing-specific information from external conditions I / O card configured to interface with the control unit, a communication board for transmitting crossing control status, fault information, etc. to the status display unit and connecting to external devices, and noise countermeasures. It detects the manual input information, detects the operation of adjacent railroad crossings, the current status of the train operation and signaling, the exchange sign, the outside stop information, etc. A control unit 300 for detecting a failure; Alarm lamp and bell card that have both suspension alarm and general alarm and allow the other one to operate even when one of the pairs is turned off due to disability, Horn speaker card and voice card that notify by broadcast by voice and other species when the train enters When the obstacle is detected on the crossing after the operation of the device, the obstacle warning card turns on the obstacle warning light in turn, and the fault detection and the failure status from the crossing device are transmitted to the adjacent station (station control panel or the crossing monitoring device) through the communication cable. The fault detection card performs a function of transmitting a signal, and the fault detection card performs a function of transmitting a frequency through a communication cable to a fault crossing device of a neighboring station crossing monitoring device. Train tracking in section, safety check of various input / output, minimum alarm time setting , Alarm control section 400 to perform the functions of the output calculation, alarm control, input and output information transmitted to the site and type; Control the FTM module, analyze the input signal, calculate the train's position and speed, output the CPU on time and perform the self-diagnosis function, FTM card that periodically transmits and receives the set voltage, train detection unit and obstacle detection unit Power supply card to supply the power required for the obstacle, obstacle detection card to detect the presence, progress, and stop of the obstacle on the crossing, and the train passing through the crossing, and the situation of the crossing in real time to pass to the CPU A detection unit 500 including a camera; The electronic unit includes a CPU card for checking and controlling the status of the display unit, an input card for receiving field information, a power card for supplying power to the device, and a display panel for informing the operator of the operation of the device. Detects the operation and failure information of the status display unit 600 to perform the function of displaying and storing it; Artificial intelligence crossing control unit, characterized in that The method of claim 1, The control unit, the hardware and software for controlling the electronic crosswalk is configured to be set according to the operation of the setting terminal of the input / output board without additional equipment according to the unique condition (unique information) of the crosswalk as a single wire, double wire, double wire bidirectional common, AI crossing control unit, characterized in that the commercial system and the preliminary system is automatically switched to perform the normal function The method of claim 1, The control unit is configured to immediately alarm the alarm device when the inoperable state and the continuous alarm state are detected due to a malfunction of the surrounding environment, the detection device and the system, and return to the normal state when the normal state is determined to operate as a safe side. Intelligent Crossing Control Unit The method of claim 1, The alarm control unit, the intelligent crossing control unit for controlling the alarm to continue after determining the speed of the descending train when the descending train enters at the time of passing the upward train in the double track section The method of claim 1, The alarm control unit, the control of the breaker to start the descent after the alarm start, to enable the control of railroad crossing circuit breakers and pole-type electric circuit breakers, and to set the descent notice setting time to be adjustable, manual operation and manual switchgear Intelligent crossing control unit characterized in that the breaker can be operated by The method of claim 1, The fault detection module is an artificial intelligent crossing control unit, characterized in that configured to interface with an existing obstacle detection equipment (a obstacle detection device, an exit side interception detector). The method of claim 1, The FTM card is configured to transmit and receive a set voltage to the track circuit 20 times per second (period 50 m / sec), and optically insulate the transmitted signal and the received signal in real time to transmit the information to the CPU. Intelligent crossing control unit The method of claim 1, The breaker, the intelligent crossing control unit, characterized in that to fully descend at least 15 seconds before entering the train