KR101049176B1 - Train stop - Google Patents

Abstract

The present invention relates to a train stationary stop device for allowing a train to stop at a platform in an exact position, and an object of the present invention is to analyze the position of a train using an RFID reader in a manual train or an automatic train. It is to provide a train stop device, which allows the train to stop at the platform in place. To this end, the present invention, in the train stationary stop device mounted on the train, receives a radio signal transmitted from the RFID tag installed on the platform to the RFID reader to determine which position the train is passing on the platform. A train position detecting unit for determining; A train speed detector for determining a speed of the train; And analyzing the information for stopping the train on the spot using the position information of the train transmitted from the train position detecting unit and the train speed information transmitted from the train speed detecting unit, and controlling the operation of the train according to the analysis result. And a fixed stop control unit for driving the train brake unit of the control device to stop the train at the correct position of the platform.

Train, stop, stop

Description

Train Stopping Device {APPARATUS FOR STOPPING A TRAIN}

The present invention relates to a stationary stop device for allowing a vehicle to stop in place, and more particularly, to a train stationary stop device for allowing a train to stop in place on a platform.

The popularization of the subway, one of the most common means of public transportation by modern people, and the monorail, which is smaller than the subway but excellent in terms of noise, urban aesthetics, and space utilization, and the installation cost, punctuality, and headway are more efficient than the subway. In addition to revitalizing the light rail business, the importance of securing the reliability and safety of the railway signal control system is increasing.

In addition, the importance of the on-vehicle signal control system in accordance with the technical change of the train operation control through the configuration of the track circuit of the vehicle-centered moving occlusion system such as CBTC in the train operation control through the configuration of the conventional ground-based fixed occlusion track circuit The trend is expanding.

On the other hand, such a train operation control method has recently been used ATO, ATC, ATS.

ATS (Automatic Train Stop device) (hereinafter, simply referred to as 'ATS') is a device commonly used on the ground, and the engineer manually operates a train (subway) (hereinafter, simply referred to as 'train'). In this state, if the engineer does not stop the train within a certain time is a device for forcibly stopping the train.

ATC (Automatic Train Control Device) (hereinafter, simply referred to as 'ATC') is a device commonly used in the underground, and when the train exceeds the speed limit, it automatically controls the speed below the speed limit.

ATO (Automatic Train Control Device) (hereinafter, simply referred to as 'ATO') is a device that automatically drives and controls a train without an operator's intervention, and generally includes an ATC.

Conventional train operation method using the above devices can be largely divided into a manual operation method using an ATS and an automatic operation method using an ATO.

Manual operation is a method in which the engineer manually starts the train, manually accelerates the train, and stops the train manually. In special situations, for example, if the engineer does not stop the train within a certain time, It is a method of forcibly stopping the train by operating.

The automatic driving method is a method of automatically starting, accelerating and stopping a train without the involvement of an engineer using the ATO as described above.

On the other hand, the platform on which the train stops, a screen screen (hereinafter referred to as 'PSD') is installed and operated to improve the safety and indoor environment of users.

Since the PSD is opened and closed only when the train stops at the correct position of the platform, users can safely get on and off, and the use of the PSD is more emphasized to stop the position on the platform of the train.

However, the conventional train exact stop device is not applied in the manual driving method using the ATS. In addition, in the case of the automatic driving method using the ATO, the markers are used to guide the stationary stops.However, the method using the markers is a point-to-point method, so it is difficult to control the stop accurately, and for each train entering the platform, As the wheel wear condition and brake braking force are different, the braking distance error occurs, which implies the problem of accurate stop position within the tolerance range (Stop Point ± 30Cm).

An object of the present invention for solving the above problems, the train can be stopped at the correct position of the platform through the position analysis of the train using the RFID reader in the manual train or automatic train of the train, It is to provide a train stop device.

In order to achieve the above object, the present invention provides a train fixed position stop apparatus mounted on a train, and receives a radio signal transmitted from an RFID tag installed on a platform to an RFID reader to determine which position the train is on the platform. A train position detection unit for determining whether the vehicle passes; A train speed detector for determining a speed of the train; And analyzing the information for stopping the train on the spot using the position information of the train transmitted from the train position detecting unit and the train speed information transmitted from the train speed detecting unit, and controlling the operation of the train according to the analysis result. And a fixed stop control unit for driving the train brake unit of the control device to stop the train at the correct position of the platform.

The present invention has the effect that the train can be stopped at the correct position of the platform through the position analysis of the train using an RFID reader in a manual train or an automatic train.

In addition, the present invention implements precise train speed control by analyzing RFID information and track circuits using the same information when the train stops on the platform, and detects wheel wear rate of the train to correct various data according to the train state. This has the effect of ensuring passengers' ride comfort and stability.

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

1 is a configuration diagram of an embodiment of a train driving system to which a train stop device according to the present invention is applied.

As shown in FIG. 1, a train driving system to which the present invention is applied operates along a track and is equipped with a train stop device according to the present invention, a train 20 and a train on which the train runs. It is configured to include a platform 30 that stops.

As described above, the train 10 is equipped with a train stop device according to the present invention as described above, which will be described in detail with reference to FIG. 2.

The track 20 is a route through which a train travels, and a plurality of RFID tags capable of transmitting radio signals to a radio-frequency identification (RFID) reader (hereinafter, simply referred to as 'RFID') mounted on the train are fixed. It may be installed at intervals.

Platform 30 is a position where the train stops to get on and off passengers, a plurality of RFID tags that can transmit radio signals to the RFID reader mounted on the train are installed at regular intervals, the screen door (PSD) It may be installed. Here, the platform 30 refers not only to a structure (a platform) where passengers can get on and off the train, but also to all spaces where the train can stop, including a track adjacent to the structure. That is, the tracks extending into the platform are also included in the platform. Therefore, the RFID tag 30a installed in the platform may be mounted on the structure of the platform, or may be mounted on the track of the platform.

On the other hand, although not shown in the drawing, the train running system further includes a central control system for monitoring or controlling the operation of various devices mounted on the train and the platform.

In addition, the train, track, platform and the central control system is provided with a radio transmitter 60 that can perform wireless communication with each other.

The train driving system including the configuration as described above, when a manual train or an automatic train type train enters the platform, wireless signals transmitted from a plurality of RFID tags 30a mounted at regular intervals on the platform After analyzing the exact position where the train should stop, the train automatically stops the train according to the analysis result.

In other words, the train operation system to which the present invention is applied to determine the position of the train entering the platform using the RFID tag installed in the platform for stopping the exact position of the train and the RFID reader (41a) mounted on the train, The speed code control accordingly stops the train in place.

2 is a configuration diagram of an embodiment of a train stop device according to the present invention, which is mounted and operated on the train 10 as described above.

As shown in FIG. 2, the train positioning apparatus according to the present invention receives a radio signal transmitted from an RFID tag installed on a platform with an RFID reader, and determines a location of a train passing through the platform. (41), the train speed detection unit 42 for determining the speed of the train and the train position detection unit using the position information of the train transmitted from the train position detection unit and the train speed information transmitted from the train speed detection unit to stop the train It is configured to include a fixed position stop control unit 43 to make.

The train position detecting unit 41 includes the RFID reader 41a as described above, and includes a controller for analyzing the train position information collected through the RFID reader to determine the position of the train on the platform. Here, the RFID reader is preferably in front of the train, two may be mounted in front of and behind the train. On the other hand, when the RFID reader is mounted in two places in front of and behind the train, it is to make the stop of the train more precisely using the track circuit, which will be described with reference to FIG. 3. On the other hand, the train position detection unit may further include a storage for storing the information on the train position as described above.

The train speed detection unit 42 is for detecting the current speed of the train, and for example, may detect the speed of the train by analyzing the rotation speed of the wheel of the train for a predetermined time using a tachometer. In addition, the train speed detection unit may detect the moving distance of the train by analyzing the rotation speed of the train using the tachometer as described above. On the other hand, the train speed detection unit may further include a storage for storing information about the speed or the movement distance as described above.

The exact position stop control unit 43 analyzes the information for the exact position stop of the train using the information transmitted from the two detection units as described above, and uses the analyzed information to stop the stop control signal for stopping the train. As to generate, the stop control signal is transmitted to the train braking unit 51 responsible for braking the train to control the train braking unit.

The stationary stop device 40 according to the present invention as described above may be operated in connection with the train control device 50 for comprehensively controlling the operation of the train, in particular, the stationary stop control unit of the stationary stop device 43 is connected to the train braking unit 51 that directly performs the operation of stopping the train among the train control apparatus, thereby controlling the train braking unit, thereby performing a function to stop the train at the correct position.

Here, the train control device 50 is mounted on a train of a manual driving method equipped only with the ATS, may be a device for the engineer to manually control the operation of the train, the automatic ATO and ATC is equipped with It may be a device that is mounted to the train of the driving method, to automatically control the operation of the train, the basic configuration is shown in Figure 2, the train braking unit 51, train control unit 52, wireless It comprises a communication unit 53, an input unit 54, an output unit 55, and a storage unit 56.

That is, the exact position stop device 40 according to the present invention can be installed and operated in the train of the automatic driving system as well as the manual driving system.

First, a configuration of the train control device 50 will be described below by taking an example in which the train control device 50 shown in FIG. 2 is mounted on a train of a manual driving method.

The input unit 54 of the train control device 50 mounted on a train of a manual driving method allows an engineer to manually input control signals necessary for starting a train, accelerating a train, stopping a train, opening and closing a door, and the like. Perform the function.

The train braking unit 51 is driven according to a control signal input through the input unit to perform a function of starting, accelerating, or stopping a train, or a stop that has been transmitted from a stop stop control unit of a stop stop device. Stops the train according to the control signal.

The output unit 55 may be configured as a lamp, a speaker, a monitor, or the like for outputting the information input by the engineer or various information required for the operation of the train.

The storage unit 56 stores a variety of information required for operation of the train or generated during operation of the train.

The wireless communication unit 53 performs communication with the central control system through a wireless transmitter and receiver 60 mounted on a platform or a track to transmit and receive various information required for train operation.

The train controller 52 controls various functions of the wireless communication unit 53 and the components, receives various kinds of information related to the exact stop of the train from the exact stop controller, and stops the train by the exact stop controller. If it is determined that it is necessary to block the manual stop braking signal input from the input unit 54, the train braking unit 51 is driven by the stop position control unit 43 to perform a function to stop the train. Can be.

Next, a configuration of the train control device 50 will be described below by taking an example in which the train control device 50 shown in FIG. 2 is mounted on a train of an automatic driving method.

As described above, the train control device 50 mounted on the train of the automatic driving method automatically performs all functions such as starting, accelerating, stopping and opening / closing the train according to preset information without control by the engineer. As such, the input unit 54 performs a function of allowing the engineer to input various pieces of information necessary for the operation of the train as described above. That is, the input unit is used when the engineer or manager inputs various data for allowing the train to operate automatically. However, even in the case of an automatic driving train, when a special situation occurs, it is necessary to switch to manual driving by an engineer. In this case, the input unit may perform a function of receiving various information related to the operation of the train. .

The train braking unit 51 is driven according to the control signal transmitted from the train control unit to start or accelerate the train and stop the train according to the stop control signal transmitted from the stop control unit. It performs the function of stopping.

The output unit 55, the storage unit 56, and the wireless communication unit 53 perform the same functions as the output unit, the storage unit, and the wireless communication unit described in the train control apparatus applied to the train of the manual driving method.

The train control unit 52 controls the functions of the wireless communication unit 53 and the components, and when it is determined that the train has entered the platform, the train braking unit 51 is driven by the stop stop control unit 43. To stop the train.

As described above, the fixed position stop device according to the present invention can be mounted and used in both a manual train or an automatic train, and in particular, accurately analyzes a stop position of a train using an RFID tag. Has characteristics.

FIG. 3 is a flowchart illustrating a process in which a train stops at a platform in a platform by a train stop device according to the present invention, and the train stop device 40 according to the present invention shown in FIG. In conjunction with the train control device 50 is shown a process of stopping the train at the correct position of the platform.

The train stop device 40 recognizes that the train has entered the platform as the radio signal transmitted from the starting point RFID tag indicating the start of the platform is received through the RFID reader of the train position detecting unit (302). That is, since the starting point RFID tag containing information indicating the start of the platform is installed at the starting point of the platform, when the starting point RFID information is input to the RFID reader passing through the starting point, the train position detecting unit recognizes that the train is entering the platform. On the other hand, the entry information is transmitted to the stop position control unit 43. At this time, the exact position stop control unit may transmit the entry information to the train control unit 52. On the other hand, the starting point RFID tag is installed in an appropriate position in consideration of the general running speed of the train and the length of the platform.

In addition to the platform entry recognition, the exact stop control unit 43 of the train exact stop device, the position information of the train input through the RFID reader of the train position detection unit, the speed and position information of the train input through the tachometer of the train speed unit Analyze the information for stopping the train in position (304). That is, since the platform is equipped with a plurality of RFID tags at regular intervals, and each RFID tag has the position information on the platform, the exact stop stop control unit is input through the RFID reader of the train position detection unit 41 The location of the train on the platform is analyzed using the information of the RFID tag. In addition, since the train speed detection unit is equipped with a tachometer that can detect the speed of the train using the number of revolutions of the wheel, the train speed detection unit can detect the speed of the train using the tachometer. In addition, the train speed detection unit may calculate the moving distance of the train from all platforms using a tachometer. At this time, it has been described that the tachometer is used to calculate the speed and the moving distance of the train, but the present invention is not limited thereto. Therefore, in the present invention, various sensors capable of determining the speed and the moving distance of the train may be mounted and used in the train speed detector.

On the other hand, the process (302, 304) as described above occurs in common in the stationary stop device 40 mounted on the train of the manual operation method or the automatic operation method, information analysis for stopping the train exact position The process after 304 is operated differently depending on whether the train is a manual driving system or an automatic driving system.

First, in the case of an automatic driving train, that is, when the train control device 50 is a train control device applied to the automatic driving method, the stop position control unit is converted to the operation mode from the platform entry, the exact position of the train By controlling the train brake unit 51 of the train control apparatus by generating a stop control signal for stopping the train, the train may be stopped at the correct position (308). That is, in the case of the train of the automatic operation method, when the platform entry is recognized, the exact stop control unit calculates the speed of the train for stopping the exact location of the train by analyzing the location, speed, and moving distance of the train, and the calculated train speed is Drive the train brake to reduce the speed of the train.

Next, when the train of the manual driving method, that is, the train control device 50 is a train control device applied to the manual driving method, the exact stop control unit to stop the train in the correct position using the analyzed information. First, it is determined whether emergency control is required. That is, in the case of a manual driving train, a stop control signal for driving the train brake unit to stop the train on the platform is basically generated according to a signal input by the engineer through the input unit 54. However, the driver does not enter the stop control signal for stopping the train on the spot due to drowsy driving, or the stop control signal is not normally transmitted to the train braking unit due to a functional error such as an input unit or a train controller, When the speed of the train is not decelerated to a normal speed for stopping the exact position of the train, and thus it is determined that emergency control is necessary for stopping the exact position of the train (306), the exact position stopping control unit 43 moves to the train control unit 52. By transmitting the determination result to block the input of the manual stop control signal through the input unit, while transmitting the stop control signal as described above to the train braking unit to control the train braking unit directly, the train stops in place 308. However, when it is determined that emergency control for stopping the train on the right position is not required (306), the engineer stops the train normally, so the stop control controller does not generate the stop control signal and the train controls the engineer. Is stopped by 312. On the other hand, in the case of the train of the manual operation method, the exact position stop control unit continuously performs the determination process 306 as described above until the train enters the platform and is completely stopped, thereby assisting the engineer to train the position correctly It can be stopped at.

As described above, the train stationary stop device according to the present invention, which can be applied to both the train of the manual operation method or the train of the automatic operation method, in the case of the manual operation method whether emergency control for the stationary stop is required? There is a difference that the process of determining (306) is added.

In a manual train or an automatic train, the stationary stop device drives the train brake unit through the process as described above to stop the train in place (308), which is currently generally used. By opening and closing the door or PSD of the train by the method, passengers get on and off.

On the other hand, after the train is stopped, the train position detecting unit 41 may receive the exact stop RFID information from the exact stop RFID tag mounted at the exact stop of the train, thereby confirming that the train has been stopped at the correct location. When the RFID information is received from an RFID tag other than the exact stop RFID tag, various data for the exact stop on the platform using the information analyzed in the above steps and the speed by the stop control signal It is corrected (310). That is, since the RFID tag is installed more densely than the spacing interval of the RFID tag at the other position around the exact stop RFID tag, when the train is slightly out of the exact stop position, the exact stop control unit may control the deviation degree. It can be analyzed accurately.

In addition, the exact position control unit analyzes the exact stop position of the train using the exact position RFID information, and then determines whether the tachometer of the train speed detection unit has a normal reference value, and when it is determined that an error has occurred, Data for the position of the, data used to calculate the distance or speed, etc. may be corrected (310). That is, as described above, the train speed detecting unit detects the number of revolutions of the wheels of the train using a tachometer and calculates the speed and the movement distance of the train. Due to the change in the reference position for calculating the moving distance of the train or various data for the speed calculation, etc., the exact position stop control unit may correct various data of the train speed detection unit by using the exact stop position information of the train.

When the train stops in the right position and the door and the PSD are opened, and the passengers get on and off again and the door and the PSD of the train are closed again, the train control unit 52 drives the train brake unit 51 again so that the train leaves the platform. You will be taken to the platform of the next station. At this time, when the train stops at the right position of the platform, the train transmits the train number, train number, train status, train length, driving mode, etc. through the TWC Loop on the ground for automatic train control. In-house signaling equipment also transmits train depots, next stations, current stations, fixed speeds and pre-departure warning lights on board via the TWC Loop on the ground. When the train stops on the platform, the control signal for the train door opening / closing operation is transmitted to the vehicle through OLD (Open Door Loop) in the signal system.

On the other hand, in the above, the stationary stop device according to the present invention by using the RFID information collected through the RFID reader, the speed and moving distance information of the train collected through the train speed detector, information for stopping the train on the spot Although described as performing the analysis process 304, the present invention adds the track circuit analysis method using the information collected through the two RFID readers mounted on the train to perform the information analysis process 304 for the exact stop of the train It can also be done.

That is, the train stationary stop device according to the present invention, by configuring the track circuit using the two RFID readers of the train position detection unit, mounted on the front and rear of the train, it is possible to analyze the position of the train more precisely. .

Conventional non-interlocked sections and train tracks between the tracks and the tracks of the interlocked sections are generally divided into respective occlusion sections by means of an impedance bonder, and the occupancy of the trains between the occluded sections is detected by the AF track circuit. The AF track circuit not only detects the occupancy of the train, but also transmits the driving interval with the train in front, the indicated speed of the train, and the vehicle operation information to the driver, thereby ignoring the signal and automatically stopping the entering train. Stability could be achieved. Each impedance bond is tuned to the frequencies of all channels used at the installed location, which includes two frequencies for train detection of the occlusion zone and two frequencies for sending speed limit commands to the train. Detection frequencies are F1: 1590 Hz, F2: 2670 Hz, F3: 3870 Hz, F4: 5190 Hz, and the difference signal frequency is 990 Hz). That is, in the conventional fixed occlusion AF track circuit, it is determined that the train exists in one track from the time when the train enters the track through the excitation state of the physical track relay and exits the entered track, and occupies one track. In this state, when entering the adjacent track, it is determined that both tracks are occupied, and thus the occlusion occupied is long, which causes a deterioration of the efficiency of the headway. In addition, since the speed code control is divided into fixed track sections, it is made in the form of a discontinuous speed profile. Thus, when a train in the front track exists when the train is in operation, a sudden braking occurs, which acts as a factor to reduce the stability of the passengers. Therefore, the above-mentioned problems of the conventional train ATO, ATC, ATP (Automatic Train Protection) system can be compensated for, and can be applied to ATO / ATC / ATP systems of monorail and light rail (rubber wheel type / steel wheel type). The present invention constitutes a track circuit using RFID technology.

That is, the track circuit using the RFID technology applied to the present invention uses a passive track RFID tag (Track RFID-Tag) on the track between the platform (platform) and the platform (platform) instead of the conventional fixed occlusion AF track circuit. Tag In-Tag Out track circuit can be configured so that trains are always on one track tag by installing them at intervals shorter or shorter than that. .

On the other hand, such a tag-in track circuit of the tag-out method can be implemented in the platform, the stop position control unit is a tag-in using a plurality of RFID tags mounted on the platform, and two RFID readers mounted on the train- By using the tag-out track circuit, it is possible to calculate a more accurate position of the train at the time of analyzing the information 304 for the exact stop of the train. That is, the train can recognize each track tag through two RFID readers mounted on the train to more accurately determine the location of the train, and the train's wireless communication module (wireless communication unit) ( 53) by using the real-time two-way wireless data communication between the train and the ground (central control system) to send and receive the location information, the speed of the train, the speed code and the location information of the train in front of In case of unavoidable sudden braking situation, more continuous speed code control is possible, which not only improves the stability in ATC / ATP, but also uses a low-cost RFID tag, which is economically expensive. It can bring about savings.

4 is a graph illustrating an embodiment of a speed profile of a train to which a train stop device according to the present invention is applied.

As described above, the conventional fixed stop device for trains used in the ATO has a discontinuous speed code control for the train due to the wide distance between the markers and the markers installed on the ground. It acted as a factor to reduce the stability.Because the wheel wear condition and brake braking force are different for each train entering the platform, a braking distance error occurs according to the exact stop position within the tolerance range (Stop Point ± 30Cm). There was a problem with it.

However, the train fixed stop device according to the present invention using the RFID technology, the RFID tag (RFID-Tag) installed at a constant interval (5 ~ 10m) on the track or structure (vessel platform) in the platform when the train enters the platform Also, through the tag recognition between RFID readers located in the driving vehicle (front of the vehicle) in the direction of train operation, it is possible to determine the position of the train on the train, not the ground, and the redundancy mounted on the train. By using the wireless communication module (wireless communication unit) using the real-time two-way wireless data communication between the train and the ground (central control system) to transmit and receive the location information of the train and the speed of the train and the corresponding speed code, as shown in Figure 4 Speed code control in the form of a continuous speed profile, as described above, can ensure passengers' ride comfort and stability when braking the train.

In addition, the train stationary stop according to the present invention, after calculating the distance between each RFID tag using a tachometer installed on the vehicle, and compares the distance between the actual RFID tag (Tag) to analyze the wheel wear state of the train By correcting the braking force according to the train condition, it is able to realize the exact stop.

In addition, the present invention is to place the RFID tag (RFID-Tag) on the track and the platform at regular intervals to accurately position the train using the track circuit not only when the train is stopped on the platform, but also while driving between the platform and the platform. On the other hand, through the two-way wireless data communication between the ground (central control system) and the train, it is possible to control the speed code several times in one track section, thereby enabling more continuous train speed control.

That is, the present invention implements precise train speed control by analyzing RFID information and track circuit using the same when stopping on the platform at the same time, and detects the wheel wear rate of the train to correct various data according to the train state. It is characterized by ensuring passengers' comfort and stability.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

1 is a configuration diagram of an embodiment of a train driving system to which a train stationary device according to the present invention is applied.

Figure 2 is a configuration diagram of one embodiment of the train stationary stop apparatus according to the present invention.

3 is a flow chart illustrating an embodiment in which a train stops at a platform on a platform by a train stationary device according to the present invention.

Figure 4 is a graph showing an embodiment of the speed profile of the train applied train stationary stop apparatus according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: train 20: track

30: platform

Claims (6)

A train location detector for receiving a radio signal transmitted from an RFID tag installed in a platform to an RFID reader to determine which location the train passes on the platform; A train speed detector for determining a speed of the train; And analyzing the information for stopping the train on the spot using the position information of the train transmitted from the train position detecting unit and the train speed information transmitted from the train speed detecting unit, and controlling the operation of the train according to the analysis result. In a train stationary stop device mounted on a train in a configuration including a position stop control unit for driving the train braking unit of the control device to stop the train at the position of the platform, In the case of a device for operating the train in a manual driving manner, if the stop control point is determined that the emergency control for positioning the train is required as a result of analyzing the information for stopping the train on the exact position, the train control Sending the determination result to the train control unit controlling the driving of the device to block the input of the manual stop control signal for driving the train braking unit, and then drive the train braking unit of the train control device to drive the train to the platform. A train stop position device, characterized in that the stop at a position. The method of claim 1, The exact position stop control unit, When analyzing the information for stopping the train on the exact position, train station stop device, characterized in that for applying a track circuit analysis method using the two RFID information received from the two RFID reader of the train position detection unit. delete delete delete The method of claim 1, The exact position stop control unit, After the train is stopped, using the position of the train collected from the train position detection unit, the train speed detection unit to correct the data used for calculating the speed of the train or the moving distance of the train, characterized in that Train stop position.

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