KR20090088135A - A controlling system for operating of train - Google Patents

Abstract

A train operation control system is provided to detect the traveling speed of a train by installing a plurality of frequency transmitters in a track. First and second frequency transmitters(10,11) are installed at a set section of a track. A frequency receiver(20) is installed in the train. The frequency receiver receives the frequency signal from the first and second frequency transmitters. A central processing unit(30) includes an indication speed output unit(32), a speed output unit(31), and a comparing/determining unit(33). The indication speed output unit produces the indication speed about the set section of the track. The speed output unit produces the traveling speed of the train based on a first sensing time, a second sensing time, and the interval between the first and second frequency transmitters. The comparing/determining unit compares the traveling speed of the train with the normal operation speed of the train.

Description

A controlling system for operating of train

1 is a schematic configuration diagram showing a train operation control system according to an embodiment of the present invention.

2 is a view for explaining the installation of the frequency transmitter shown in FIG. 1 around a line;

3 is a schematic flowchart illustrating a method for controlling train operation according to an embodiment of the present invention.

4 is a graph for explaining a traveling speed of a train in a predetermined setting section of a track;

<Description of Symbols for Major Parts of Drawings>

10, 11, 12. 1st, 2nd and 2nd frequency transmitters

20. Frequency receiver 30. Central processing unit

31. Speed calculator 32. Speed indicator

33. Comparison / judgment 40. Higher control room

50. Train driving unit 60. Alarm unit

The present invention relates to a train running control system, and more particularly to a train running control system that can prevent the train accident by detecting the traveling speed of the train in the desired track section.

Trains are a very important means of transportation and logistics because they can carry many passengers and carry a lot of cargo at the same time compared to ordinary vehicles.

Therefore, as the logistics volume increases and high-speed trains appear, the use of trains is gradually increasing.

These trains are connected to a plurality of driven cars in front of the power car to operate at a high speed on the rail, so many casualties and physical damage can be seen in the event of an accident. Therefore, safety prevention is the most important issue in the operation of trains.

As the traffic volume of the train increases, the ATS (Automatic Train Stopper) and ATC (Automatic Train Control) are used to efficiently use the limited track facility and to secure the proper distance from the preceding train according to the traveling speed. , Train control systems such as ATO (Automatic Train Operation) are widely used.

However, the conventional train control system as described above is required to operate the train speed lower than the normal driving speed, such as the station zone, curved track zone, blackout line zone, insulated line zone, accident track zone, etc. It is common to install only in order to control the operation of the train. And in the section in which the train control system is not installed, it is controlled to operate according to a preset traveling speed, and in addition, it is controlled and operated manually by the judgment of the train driver.

However, since the train tracks are connected nationwide or between countries and continents at distances of tens to thousands of kilometers, the installation of train control systems on all tracks is a practically difficult problem due to cost and management reasons. .

That is, in order to operate the train control system in a predetermined section as described above, a means for obtaining the actual traveling speed of the train is required, and it is virtually impossible to install such means on all tracks. Therefore, it is common to install a means for acquiring the train traveling speed only in the main section to control the vehicle to operate within a safe train traveling speed range or to reduce the traveling speed.

However, when the train control system is applied to only a predetermined section as described above, there are many problems as follows.

When the train control system is broken, there is a problem that it is difficult to determine whether the train is decelerating to the indicated speed value even if the train control speed is instructed from the upper control room.

In addition, when an accident occurs or an event such as a construction work occurs in a track section without a train control system installed, if a deceleration or stop signal is sent from the upper control room to a running train, the event occurs step by step at an appropriate time. Since there is no way to control whether or not it is decelerating, there is a problem that a large accident may not be prevented due to attentiveness or mistake of the train driver.

In addition, the train decelerates by the existing train control system in a section where the operating speed of the train is to be gradually reduced or stopped, as well as an event occurrence section, such as a station, an interruption section, an insulation section, a curved section, and a line conversion section. Although the control signal can be delivered to the train to be stopped, there is a problem in that it is difficult to guarantee safe train operation because there is no way to determine whether the train is decelerated or stopped according to the received control signal.

The present invention has been made to improve the above problems, it is improved to control the running speed of the train more accurately by selectively installing in the required section of the track section running the train to obtain the actual running speed of the train The purpose is to provide a train operation control system.

Train operation control system of the present invention for achieving the above object, the first and second frequency transmitters that can be installed and removed at a predetermined interval in a predetermined section of the track section that the train is running; A frequency receiver provided in a train traveling on the track and receiving a frequency signal transmitted from each of the first and second frequency transmitters when passing through the set section; Calculating and calculating a first train traveling speed between the first and second frequency transmitters based on first and second detection times at which the frequency receiver detects frequencies from the first and second frequency transmitters; And a central processing unit that determines whether the train is decelerating toward the indicated speed by comparing the speed with the normal driving speed of the train.

Here, the central processing unit, the instruction speed calculation unit for calculating the instruction speed for the set period received from the upper control room; A speed calculator configured to calculate a train speed based on the first and second detection times and the interval between the first and second frequency transmitters; And a comparison / determination unit for comparing the signal calculated by the speed calculation unit with the normal driving speed of the train to determine whether the vehicle is decelerated toward the indicated speed.

The apparatus may further include a third frequency transmitter which may be installed to be spaced apart from the second frequency transmitter by a predetermined distance, wherein the CPU includes a third sensing time at which the frequency receiver detects a signal of the third frequency transmitter, The second driving speed between the second and third frequency transmitters is calculated based on the distance between the second and third frequency transmitters, and the train continues by comparing the calculated second driving speed with the first driving speed. It is good to determine whether or not it is decelerating.

In addition, when it is determined that the second driving speed exceeds the first driving speed, the CPU may notify an emergency alert through an alarm unit in the driver of the train.

In addition, when it is determined that the first driving speed is not reduced from the normal driving speed, the CPU may notify the emergency alert through an alarm unit in the driver of the train.

In addition, the train operation control system according to an embodiment of the present invention for achieving the above object comprises the steps of arranging the first and second frequency transmitter at a predetermined interval in a predetermined section of the track; Obtaining an indication speed for deceleration by a train passing through a section in which the first and second frequency transmitters are installed; Detecting a first driving speed of a train passing through the first and second frequency transmitters; Comparing the detected first traveling speed with a normal driving speed of the train to determine whether the train is decelerating toward the indicated speed; And generating an alarm signal when the first travel speed does not decrease to a speed lower than the normal travel speed.

The first driving speed detecting step may include: detecting a signal from each of the first and second frequency transmitters from a frequency receiver provided in the train; And calculating train speed based on first and second detection times for detecting signals of the first and second frequency transmitters and distances between the first and second frequency transmitters.

The method may further include installing a third frequency transmitter spaced apart from the second frequency transmitter by a predetermined distance; Calculating a second traveling speed at which the train passes between the second and third frequency transmitters; And comparing the second driving speed with the first driving speed to determine whether the train is gradually decelerating, and generating an alarm signal when the second driving speed is greater than or equal to the first driving speed. It is good to let.

The calculating of the second driving speed may include: detecting a signal of the third frequency transmitter by the frequency receiver; Train travel between the second and third frequency transmitters based on the second and third detection time at which the signals of the second and third frequency transmitters are sensed and the separation distance of the second and third frequency transmitters. Calculating a speed;

In addition, in the step of generating the alarm signal, it is good to notify the emergency alarm through the alarm unit so that the driver of the train to recognize the emergency situation of the train.

Hereinafter, a train driving control system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, a train driving control system according to an exemplary embodiment of the present invention may include first, second and third frequency transmitters 10, 11, which are selectively arranged and dismantled at predetermined intervals on a track on which a train runs. 12) and calculating the train traveling speed in the section in which the frequency receiver 20, which receives the frequencies transmitted from the frequency transmitters 10, 11, and 12, and the frequency transmitters 10, 11, 12, respectively, are installed. Is provided with a central processing unit 30 to determine whether the normal operation of the train.

As shown in FIG. 2, the frequency transmitters 10, 11, and 12 are movable FAID (Fadio Frequency Identification) that can be installed and removed at predetermined intervals in a predetermined setting section of the track 2 on which the train 1 operates. )to be. These frequency transmitters 10, 11, 12 transmit radio waves of a specific frequency band.

These frequency transmitters 10, 11, and 12 are temporarily installed in a set section requiring deceleration of the train 1, even in the section of the track 2, so as to check whether the train 1 decelerates and runs in the set section. Is prepared to help. For example, the setting section for deceleration may include a curved section, an accident occurrence section, a power cut section, an insulation section, a line conversion section, a construction section, and the like. Preferably, the three frequency transmitters 10, 11, and 12 are arranged at regular intervals. That is, the separation distance L1 between the first and second frequency transmitters 10 and 11 and the separation distance L2 between the second and third frequency transmitters 11 and 12 may be arranged to be equal to each other.

The frequency receiver 20 is provided in the train 1 to receive a frequency of a specific region transmitted by each of the frequency transmitters 10, 11, 12 when the train passes the set section. The radio waves transmitted from the respective frequency transmitters 10, 11, and 12 preferably have different frequency ranges. And the radio wave range is set smaller than the separation distance (L1, L2) between each other, thereby minimizing interference between neighboring frequency transmitters (10, 11, 12), each frequency transmitter at the time of radio wave reception at the frequency receiver 20 It is possible to distinguish and receive the frequencies transmitted at (10, 11, 12).

The CPU 30 receives an instruction speed from the upper control room 40 to decelerate the train 1 at a predetermined speed in the set section. In addition, the train driving unit 50 is driven and controlled at the received commanded speed so that the train decelerates from the normal speed Vm to the commanded speed Vo in the set section.

In addition, the central processing unit 30 receives the respective times transmitted from the first, second and second frequency transmitters 10, 11, and 12 at the time t1 (first sensing time) received by the frequency receiver 20. Calculate the actual train traveling speed in the set section based on the t2; second sensing time, t3; third sensing time) and the separation distances L1 and L2, and calculate the calculated speed and the normal speed. Compared to determine the deceleration of the train. Then, according to the determined result, the central processing unit 30 controls to stop the train by generating an emergency signal to the driver through the alarm unit 60 when the train is not decelerated at the indicated speed.

To this end, the central processing unit 30 calculates a first driving speed V1 at the first separation distance L1 and a second driving speed V2 at the second separation distance L2. (31), the commanding speed calculator 32 for calculating the commanding speed Vo received from the upper control room 40, and comparing the first traveling speed V1 with the normal speed Vm, Comparing / determining portion 33 which compares the first and second traveling speeds V1 and V2 with each other and determines whether the train is decelerated to reach the indicated speed Vo.

The speed calculator 31 receives the radio waves transmitted from the first, second and second frequency transmitters 10, 11, and 12 from the frequency receiver 20 when the train 1 is traveling. Information about the first, second and second detection times t1, t2, and t3 and information on the separation distances L1 and L2 are respectively obtained, and the following equation 1 is obtained based on the obtained information. First, the first driving speed V1 is calculated.

V1 = L1 / (t2-t1)

In addition, the speed calculator 31 may calculate the second driving speed V2 through Equation 2 below.

V2 = L2 / (t3-t2)

The instruction speed calculator 32 calculates, in real time from the upper control room 40 or the instruction speed Vo which has been previously received, for each of the set sections. In this case, the indicating speed Vo typically represents a speed lowered than a normal driving speed.

The comparison / determination unit 33 compares the first driving speed V1 calculated by the speed calculating unit 31 with the normal speed Vm of the train first, and then the train 1 in the second separation section L1. ) Determines whether the vehicle decelerates toward the indicated speed Vo. In addition, the comparison / determination unit 33 continues to decelerate toward the indicated speed Vo even in the second separation section L2 after the train is decelerated than the normal speed Vm in the first separation section L1. The first and second train speeds V1 and V2 are compared with each other in order to confirm whether or not the vehicle maintains the decelerated or decelerated state. Therefore, when the second driving speed V2 is smaller than the first driving speed V1, the deceleration of the train is normally performed to confirm that the vehicle is operating at the indicated speed Vo, or to determine whether it is operating abnormally. do.

When the central processing unit 30 determines that the train is not being decelerated to reach the indicated speed Vo in the set section, based on the result of the comparison / determination unit 33, the central processing unit 30 transmits the alarm through the alarm unit 60. The driver of the train informs the emergency alarm so that the driver can manually stop the train or manually decelerate the train. That is, in the alarm unit 60, the driver may notify the abnormal driving fact of the train through various methods such as emergency broadcast to the cab or emergency bell, flashing emergency lights. Therefore, even if ATS, ATC, ATO, etc., which automatically control the operation of the train, fail or malfunction, the driver can be notified immediately so that the train can be stopped manually.

The train operation control method using the train operation control system according to an embodiment of the present invention having the above configuration will be described in detail.

First, as shown in FIG. 2, a plurality of frequency transmitters 10 and 11 are installed in a set section in which the train needs to be decelerated and operated in the track 1 (S10).

In the step S10, only the first and second frequency transmitters 10 and 11 may be installed, but preferably, three frequency transmitters 10, 11 and 12 are arranged.

Next, the command speed Vo is delivered from the upper control room 40 to the train 1 passing through the set section (S11). The indicated speed Vo is a relatively small speed compared to the normal speed Vm. For example, when Vm = 80km / h, the indicated speed Vo may be 30km / h.

The central processing unit 30 decelerates by controlling the train driving unit 50 based on the indicated speed Vo.

When the train passes the set section while decelerating, the receiver 20 first receives a radio wave sent from the first frequency transmitter 10 to obtain a first detection time t1 (S13). Subsequently, the receiver 20 receives a radio wave transmitted from the second frequency transmitter 11 to obtain a second detection time t2 (S14).

The speed calculator 31 calculates a first driving speed V1 based on the first and second detection times t1 and t2 and the separation distance L1 obtained as described above (S15).

In addition, the comparison / determination unit 33 compares the calculated first traveling speed V1 with the normal speed Vm (S16). As a result of the comparison in step S16, when it is determined that the first traveling speed V1 is not decelerated compared to the normal speed Vm, the CPU 30 generates an alarm signal through the alarm unit 60 ( S21). When an alarm is generated to the driver or the cab through the alarm unit 60, the driver determines that the train does not operate normally and manually decelerates or stops the train 1 (S22).

On the other hand, if it is determined in step S16 that the first traveling speed V1 is slowed down compared to the normal speed Vm, the train 1 continues to operate automatically, and the receiver 20 transmits a third frequency transmitter. The third sensing time t3 is obtained by receiving the transmitted radio wave at 12 (S17). Then, the speed calculating unit 31 based on the obtained second and third detection times t2 and t3 and the second separation distance L2, the second driving speed of the train at the second separation distance L2. (V2) is calculated using the second equation (S18).

The comparison / determination unit S33 compares the calculated second driving speed V2 and the first driving speed V1 to determine whether or not the train 1 is continuously decelerating toward the indicated speed Vo or more. It is possible to confirm whether or not abnormal deceleration is being made (S19).

Therefore, when the second driving speed V2 is smaller than the first driving speed V1 in the step S19, it is possible to check whether the train 1 continues to decelerate toward the command speed Vo, and If it is determined that the deceleration is continued, the train driving unit 50 is normally controlled to automatically run (S20).

On the other hand, as a result of confirming in the step (S19), when the second driving speed (V2) is greater than or equal to the first driving speed (V1) is decelerated in the first separation distance (L1) section, but the second separation distance (L2) In the section, it can be determined that the deceleration is not performed properly. Therefore, in this case, the central processing unit 30 controls the alarm unit 60 to generate an alarm signal (S21). Then, the train driver who checks the alarm signal can manually stop or slow down the train (S22).

According to the train operation control method according to an embodiment of the present invention as described above, as shown in Figure 4, while driving at the normal speed (Vm) before the set interval, the commanded speed (Vo) is lowered to decelerate As shown by the dotted line, it is normal that the train gradually decelerates as time passes.

In order to check whether the vehicle decelerates normally as shown by the dotted line, the first and second detection times t1 and t2 detect the first driving time V1, that is, the average time, to decelerate from the normal speed Vm. By confirming that it has been made, it is possible to confirm whether the train is decelerating toward the indicated speed Vo.

However, when the speed between the first and second detection times t1 and t2 is equal to or greater than the normal speed Vm, as shown by the imaginary line, it is possible to confirm that the vehicle is operating abnormally.

In addition, even if the speed between the first and second detection times t1 and t2 is normally decelerated, the speed may increase again due to a failure of a train in a subsequent section. Therefore, by acquiring the third detection time t3 and further checking the second driving speed V2 of the train at the second separation distance L2 and comparing it with the first driving speed V1, the first separation distance L1 is obtained. ) And not only afterwards but also afterwards, it is possible to check whether the train is decelerating toward the indicated speed Vo.

As shown in FIG. 4, when the second driving speed V2 between the second and third sensing times t2 and t3 is smaller than the first driving speed V1, it may be determined to be a normal driving and virtual As shown by the line, if it is calculated at a speed equal to or greater than the first driving speed V1, it may be determined that the vehicle is abnormally operated to prevent an accident of the train.

According to the train running control system and control method of the present invention described above, by installing a plurality of mobile frequency transmitter in a desired section of the train track it is possible to detect the train running speed in the section in which the frequency transmitter is installed.

Therefore, when a special event occurs, such as an accident or construction, or a section that needs to be checked, in addition to a section designated as a decelerating section, such as a station section or a track conversion section, a mobile frequency transmitter is installed to install a mobile frequency transmitter. The speed can be detected accurately.

In addition, by comparing the traveling speed of the train detected in the desired section with the indicated speed or the normal speed, it is possible to additionally check whether the train is decelerating toward the indicated speed and continuing to decelerate. In addition, by detecting the abnormal operation of the train due to the carelessness of the driver, it can be controlled to manually decelerate or stop the train.

As a result, when inducing the deceleration of the train accurately check and monitor it has the advantage of preventing accidents caused by abnormal operation of the train.

In addition, by adopting and applying a frequency transmitter as a mobile FRID, it is possible to reduce the cost for the train operation control by detecting the train traveling speed when necessary in the desired track section at a relatively low cost.

In the above, certain preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and any person having ordinary skill in the art to which the present invention pertains without departing from the spirit and spirit of the present invention claimed in the claims may make various modifications and variations. Implementation will be possible.

Claims (10)

First and second frequency transmitters that can be installed and removed at predetermined intervals in a predetermined section of a track section in which a train operates; A frequency receiver provided in a train traveling on the track and receiving a frequency signal transmitted from each of the first and second frequency transmitters when passing through the set section; Calculating and calculating a first train traveling speed between the first and second frequency transmitters based on first and second detection times at which the frequency receiver detects frequencies from the first and second frequency transmitters; And a central processing unit for determining whether the train is decelerating toward the indicated speed by comparing the speed with the normal driving speed of the train. According to claim 1, wherein the central processing unit, An instruction speed calculating unit configured to calculate an instruction speed for the predetermined section received from an upper control room; A speed calculator configured to calculate a train speed based on the first and second detection times and the interval between the first and second frequency transmitters; And a comparison / determination unit for comparing the signal calculated by the speed calculating unit with the normal driving speed of the train to determine whether the vehicle is being decelerated toward the indicated speed. According to claim 1 or 2, further comprising a third frequency transmitter which can be installed spaced apart from the second frequency transmitter, The CPU may further include a third detection time between the second and third frequency transmitters based on a third sensing time at which the frequency receiver detects a signal of the third frequency transmitter and a distance between the second and third frequency transmitters. And calculating the two driving speeds and comparing the calculated second driving speeds with the first driving speeds to determine whether the train is continuously decelerated. The method of claim 3, The central processing unit is a train running control system, characterized in that to notify the emergency warning through the alarm unit in the driver of the train when the second running speed exceeds the first running speed. The method of claim 1, And the central processing unit notifies the emergency alert through an alarm unit in the driver of the train when it is determined that the first traveling speed is not reduced from the normal driving speed. Disposing the first and second frequency transmitters at predetermined intervals in a predetermined section of the line; Obtaining an indication speed for deceleration by a train passing through a section in which the first and second frequency transmitters are installed; Detecting a first driving speed of a train passing through the first and second frequency transmitters; Comparing the detected first traveling speed with the normal driving speed of the train to determine whether the train is decelerating toward the indicated speed; And generating an alarm signal when the first driving speed does not decrease to a speed lower than the normal driving speed. The method of claim 6, wherein the first driving speed detection step, Sensing signals from each of the first and second frequency transmitters from a frequency receiver provided in the train; And calculating train travel speeds based on first and second detection times for detecting signals of the first and second frequency transmitters and distances between the first and second frequency transmitters. How to control train operation. 8. The method of claim 7, further comprising the steps of: installing a third frequency transmitter spaced apart from the second frequency transmitter by a predetermined distance; Calculating a second traveling speed at which the train passes between the second and third frequency transmitters; And  Determining whether the train is gradually decelerating by comparing the second driving speed with the first driving speed; And a warning signal is generated when the second traveling speed is greater than or equal to the first traveling speed. The method of claim 8, wherein the second driving speed calculating step, Detecting a signal of the third frequency transmitter at the frequency receiver; Train travel between the second and third frequency transmitters based on the second and third detection time at which the signals of the second and third frequency transmitters are sensed and the separation distance of the second and third frequency transmitters. Computing the speed; train operation control method comprising a. The method according to any one of claims 6 to 9, In the step of generating the alarm signal, a train operation control method characterized in that the driver of the train to recognize the emergency situation of the train by informing the emergency alarm through the alarm unit.

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