KR200165233Y1 - A control system of railway crossing - Google Patents

Abstract

The present invention relates to a time-controlled railroad crossing control device that detects a train entering into a railroad crossing control section in advance and controls the crossing, which is installed on the rail (9) in front of the railroad crossing and changes when the wheel of the train passes. A first and second wheel detectors 1 and 2 used to determine whether the vehicle passes by using an inductance L, and two are installed at a predetermined distance and used for detecting a wheel of the train and determining a speed of the train; An input unit 41 for shaping and outputting signals output from the first and second wheel detectors 1 and 2; The CPU unit 42 calculates the speed of the train based on the wheel detection information received from the input unit 41 and calculates the passing time to the crossing, and operates the breaker 5 and the alarm 6 for a predetermined time before passing the crossing. )Wow; A control unit 43 which performs a function of directly driving the breaker 5 and the alarm 6 installed in the railroad crossing according to the information received from the CPU unit 42; It consists of the same principle as the first and second wheel detectors (1, 2) installed in the direction of the train crossing at the railroad crossing and detects when the train passes and sends the signal to the input unit (41) to provide an alarm (6) and a breaker ( A third wheel detector 3 for returning 5) to a normal state; It consists of a fault monitor part 44 which monitors the breaker 5 and the alarm 6.

Description

Time Control Railroad Crossing Control Unit {A Control System of Railway Crossing}

The present invention relates to a time-controlled railroad crossing control device, and more specifically, to measure the speed of the train entering the railroad crossing control section, to calculate the time that can pass through the railroad crossing, The present invention relates to a railroad crossing control device that automatically sets the operating time of a railroad crossing device according to the speed and controls a breaker and an alarm of the railroad crossing only for a predetermined time.

In general, railroad crossings are devices that limit the passage of people or cars passing through the railroad crossing by operating breakers and alarms at certain points within the crossing control section regardless of the time at which the high-speed or low-speed train passes the railroad crossing.

The conventional control device having such a function is used a track circuit method and a controller method, which consists of a detector that detects only a train and a controller that controls the blocking and alarming of alarms and alarms. Because it detects and operates breaker and alarm, it is impossible to calculate the passing speed or arrival time to the crossing according to the type of train.

Therefore, such a conventional device is designed to operate the breaker when a certain point is reached regardless of the speed of the train passing the crossing, so that the breaker operation time is independent of the speed of the freight train passing at low speed or Saemaul train passing at high speed. As it operates constantly, high speed trains such as Saemaul trains may require pedestrian crossings or cars to wait for a while, but freight trains passing at low speeds may have a longer waiting time for pedestrians or vehicles, which may be mistaken as a failure of crossing devices. There was a problem that by forcible crossing led to a serious casualty.

The present invention is to solve the above-mentioned problems, improve the train detection method to the wheel detection method at a certain distance of the control section of the crossing, the speed of the high speed and low speed train in the control unit by the first and second wheel detector And the purpose of providing a time-control railroad crossing control device for calculating the time to reach the crossing to operate the breaker only for a certain time to facilitate the user of the crossing.

In order to achieve the above object, the present invention detects the passage of train wheels entering a railroad crossing control section, and uses an inductance that changes when the wheels of a train passing through the railroad ahead of the railroad crossing pass. First and second wheel detectors, which are installed at a predetermined distance and used to detect wheels and determine speed of the train; An input unit for shaping and outputting signals output from the first and second wheel detectors; A CPU unit configured to calculate a speed of a train based on wheel detection information received from the input unit, calculate a passing time to a crossing, and operate a breaker and an alarm for a predetermined time before passing the crossing; A control unit for directly driving a circuit breaker and an alarm installed in a railroad crossing according to the information received from the CPU unit; The third wheel, which has the same principle as the first and second wheel detectors, is installed in the exit direction of the train at the railroad crossing and detects when the train passes and sends the signal to the input unit to return the alarm and the breaker to the normal state. Provides a time-control railroad crossing control device, characterized in that consisting of a detector.

1 is a block diagram showing a railroad crossing for explaining a time-controlling railroad crossing control device according to the present invention.

Figure 2 is a timing diagram showing the output of the wheel detector in the present invention.

Figure 3 is a block diagram showing a time control railway crossing control device according to the present invention.

Figure 4 is a perspective view showing a state in which the wheel detector is attached to the rail in the present invention.

The configuration and operation of the time-controlling railroad crossing control device according to the present invention will be described in detail through an embodiment of the present invention.

1 is a schematic view showing a railroad crossing for explaining a time-controlled railroad crossing control device according to the present invention, FIG. 2 is a timing diagram showing an output of a wheel detector in the present invention, and FIG. 4 is a perspective view showing a state in which the wheel detector is attached to the rail according to the present invention.

As shown in FIG. 1, the configuration of the time-controlling railroad crossing control device according to the present invention detects the number of passes of the wheels 101, 102, 103,. The change in the oscillation frequency is used in accordance with the change of the inductance value wound on the toroid core 11 at the moment when the wheels 101, 102, 103, ... of the train which is attached to the rail 9 at a certain point pass. The first and second wheel detectors 1 and 2 used to calculate the number and speed of the wheels of the train passing through the predetermined distance l, which are set at that point, ; An input unit 41 accommodated in a mechanical box 4 for shaping and outputting pulses output from the first and second wheel detectors 1 and 2 and the third wheel detector 3; The third wheel which is installed in the crossing direction of the train in the crossing and detects the wheel thereof when the train passes the crossing and sends the signal to the input unit 41 to return the alarm 6 and the breaker 5 to the normal state. A detector 3; Calculation of the number of wheels of the train entering the crossing using the signals of the first and second wheel detectors 1 and 2 and the third wheel detector 3 input through the input unit 41, the speed and the passage of the train. A CPU unit 42 for calculating the arrival time from the wheel detectors 1 and 2 at the predetermined point to the crossing by calculating a state and the like and calculating the operating time of the breaker 5 and the alarm 6 only for a predetermined time; A control unit 43 configured to output a power output capable of operating the circuit breaker 5 and the alarm 6 in the field only for a predetermined time based on the result measured and calculated by the CPU unit 42; The CPU unit 42 monitors the fault detection of the field wheel detectors 1, 2, and 3, and monitors the operation state of the breaker 5 and the alarm 6, calculates the cause time, etc., when the device breaks down, and sends the information. And a failure monitoring unit 44 which receives and stores the record.

Here, the first to third wheel detectors 1, 2 and 3 have a structure as follows.

The wheel detectors 1, 2 and 3 detect the number of wheels of the train passing through the rail 9 at a certain point from the crossing as shown in FIGS. 2 and 4, and the detection principle is as follows. same.

The wheel detectors 1, 2, 3 oscillate a specific oscillation frequency from an oscillator made of LC coupling, and the wheels 101, 102, 103,... Of the train are rails on the top of the wheel detectors 1, 2, 3. When passing through, the value of the inductance formed in the toroid core 11 is changed by the wheels 101, 102, 103, ..., and the oscillation frequency is changed, and the changed frequency is sorted to output a square wave output.

That is, the wheel detectors 1, 2, and 3 are composed of a toroid core 11, an oscillator 12, an amplifier 13, a frequency selector 14, and a pulse transmitter 15 as shown in FIG. In addition, the oscillator 12 oscillates a specific frequency by the LC combination, which is the inductance L value of the toroid core 12 and the capacitance C value inside the oscillator 12, and amplifies and oscillates at the frequency thereof by the amplifier 13. Selected by the frequency selector 14 that selects only a specific frequency value, which is a frequency, and consists of a pulse generating output unit 15 that receives its output and always configures a positive potential only at a specific frequency, When the wheels 101, 102, 103, ... pass through the upper rails 9 of the wheel detectors 1, 2, and 3, the inductance L value formed in the toroid core 11 is changed so that the LC of the oscillation part 12 is changed. As the value changes, the specific oscillation frequency changes to change the value. When this change occurs, the frequency selector 14 does not sort out and transmits to the negative voltage (-), and the pulse generator output 15 forms a negative potential to generate an output, and the wheels 101, 102, 103 of the train 10 In the case where the deviator has passed through the upper rail 9 of the wheel detectors 1, 2, and 3, the inductance value formed in the toroid core 11 is restored to its original state. By oscillation again at a specific frequency, the output thereof is maintained at the positive potential (+) pulse by the pulse output unit 15 through the amplifier 13 and the frequency selector 14.

Therefore, when the train passes through the wheel detectors 1, 2, and 3, the above process is repeated, and the pulse shaping of the procedure is the same as the example of the time chart shown in FIG.

In addition, the wheel detectors 1, 2, and 3 check the fact that the train passes without any mechanical contact with the wheel of the train when passing the train, so the reliability of the detection is excellent, and the material of the sensor is made of semiconductor. As a result, it has a long life without mechanical wear and improves the reliability of the index finger.

The input unit 41 receives a signal output from the wheel detectors 1, 2, and 3, removes noise, passes a corresponding frequency only, a noise filter 411, and an amplifier that amplifies and outputs a signal thereof ( 412).

The control unit 43 receives an output signal that can be output for a predetermined time according to the result of calculating the train speed, the arrival time to the crossing, etc. from the CPU unit 42, the circuit breaker 5 alarm lamp 61 which is a field device. 62) and configured to supply power to drive the alarm bell (63).

Time control railroad crossing control device according to the present invention configured as described above acts as follows.

First, the first and second wheel detectors 1, 2 detect the wheels 101, 102, 103, ... of the train 10 entering the crossing as shown in FIG. 2, and the output thereof is the input unit. Input to CPU section 42 via 41.

In addition, the CPU unit 42 determines the distance l between the first wheel detector 1 and the second wheel detector 2 based on the detection signals received from the first and second wheel detectors 1 and 2. Is input in advance, and the speed of the train is calculated by measuring the time t passing between the detectors.

The process of calculating the speed of a train by the CPU part 42 is demonstrated to an example.

Existing railroad crossing devices are unable to calculate the speed of high-speed and low-speed trains so that the breaker (5) and the alarm (6) operate 30 seconds before the crossing (the high-speed train is expected to cross the railroad crossing) based on the high-speed train. It is.

For example, if the speed of a high-speed train is 130 km / h, the breaker (5) alarm (6) is activated as soon as the train is detected by a train detecting device at a certain point in front of the crossing (the set time is when the train reaches the crossing). In the case of relatively low-speed trains, trains that enter at speeds of 60 km / h or less are required to cross the high-traffic crossing as the train passes through the crossing 60 seconds after the breaker (5) alarm (6) is activated. In the case of severe traffic congestion, the pedestrian was mistaken for the failure of the crossing device, there was a problem that a serious accident occurred.

In contrast, in the present invention, two wheel detectors 1 and 2 are installed at intervals of 10 m, and accurate speeds of trains passing through the two wheel detectors 1 and 2 are calculated to accurately distinguish between a high speed train and a low speed train. As a result, the alarm time can be appropriately adjusted in accordance with the speed of the train entering the railroad crossing, thereby ensuring the reliability of the alarm device from the railroad crossing user and preventing accidents due to unauthorized crossings.

Here, the formula for calculating the vehicle speed V of the train is determined to be 10 m x 3.6 / t = V (Km / Hr) when the installation intervals of the first and second wheel detectors 1 and 2 are set to 10 m. .

However, t denotes a passing time of the train passing through the first wheel detector 10 and the second wheel detectors 1 and 2.

Therefore, if a high-speed train entering the crossing at 130 km / h (36.1 m / h) is to be alerted 30 seconds before the train passes the crossing, the first and second wheel detectors 1 and 2 cross the crossing. It must be installed at least 1080m from the base to allow more than 30 seconds.

For example, when it is installed 2000m before the crossing, if the alarm is issued from the moment about 25.5 seconds after the moment when the train passes the second wheel detector 2, the train passes the crossing exactly 30 seconds later.

In the case of a low-speed train entering the railroad crossing at a speed of 60 km / h (16.7 m / h), if the time before reaching the railroad crossing is 30 seconds, an alarm should be generated at the moment passing the 501m point ahead of the railroad crossing, so it is installed 2000m before. If an alarm occurs about 89.8 seconds after the train passes the second wheel detector 2, the alarm is generated 30 seconds before passing the railroad crossing correctly.

The CPU 42, which grasps the speed and the speed of the train entering the railroad crossing, passes the railroad crossing on the basis of the speed of the train from the moment the train passes the first and second wheel detectors 1 and 2. 30 seconds before the time is calculated to limit the railroad crossing by operating the alarm 6 and the breaker 5 through the control unit 43.

When the train passes the third wheel detector 3 again after passing the railroad crossing, it is determined that the train is completely out of the railroad crossing, and the operation of the alarm 6 and the breaker 5 is canceled again.

On the other hand, the failure monitoring unit 44 checks the presence or absence of the failure of the first to third wheel detectors 1 to 3 through the CPU unit 42, and if a failure occurs as a result, the failure monitoring unit 44 To respond.

The time-control railroad crossing control device according to the present invention made as described above improves the control device that controls the alarm and breaker of the railroad crossing provides an effect that can always ensure safety by ensuring operational reliability.

Claims (2)

In railroad crossing control device, Detects the passage of train wheels entering the railroad crossing control section, and passes the train using the inductance (L) that changes the moment the wheel of the train passing through the rail (9) installed in front of the railroad crossing passes. First and second wheel detectors 1 and 2 installed at a predetermined distance and used for detecting a wheel of the train and determining a speed; An input unit 41 for shaping and outputting signals output from the first and second wheel detectors 1 and 2; CPU which calculates the speed of the train based on the wheel detection information received from the input unit 41 and calculates the passing time to the crossing, so that the breaker 5 and the alarm 6 can be operated for a predetermined time before the crossing. Section 42; A control unit 43 which performs a function of directly driving the breaker 5 and the alarm 6 installed in the railroad crossing according to the information received from the CPU unit 42; The same principle as the first and second wheel detectors (1, 2) is installed in the railroad crossing at the exit direction of the train and detects when the train passes and sends the signal to the input unit (41) to alarm (6) and A time-controlled railroad crossing control device, characterized in that it comprises a third wheel detector (3) for returning the breaker (5) to the normal state. The system of claim 1, wherein the CPU unit (42) checks in real time whether the first to third wheel detectors (1, 2, 3), the alarm, and the breaker (5) are broken, and displays and records the failure state. Time control railway crossing control device further comprises a failure monitoring unit 44 that can be stored.