JP6583846B2 - Stop position display system - Google Patents

Description

  The present invention relates to a stop position display system that displays a stop position of a train in order to support the operation of the train.

  Conventionally, in the control for operation management for performing various operations such as train progress and stop, various signals such as a stop signal and a travel permission signal are displayed by a traffic light. For example, a stop position sign for indicating to the driver the stop position of the train at the station has been installed to support the operation.

  Various methods are known for operation management of various train operations. For example, on-board control devices mounted on trains for various signals such as progress permission information, train identification information, and on-vehicle equipment failure information. Train operation management is performed by exchanging information wirelessly with the operation management device (see, for example, Patent Documents 1 and 2).

  However, in the conventional technology, although the operation management control of the train based on the above-described operation management device has a visual display operation indicating whether or not it can proceed by turning on / off the traffic lights or switching the lighting color, the operation is performed. Unlike normal operation control, for example, control that supports operation that is control other than management control, there is no such thing as positively indicating a stop position. Specifically, for example, a stop position sign merely having a number or the like written on the track or on the side of the track is simply installed. For this reason, for example, at a station where the stop position differs depending on the number of vehicles, the type of train, etc., if there are multiple stop position signs with only the numbers described above, the train at which stop position Whether to stop the vehicle has to be determined each time based on the information about the operation that the driver himself / herself has acquired via the operation management device or the like, the number of trains on the train, and the like.

JP 2003-95104 A JP 2007-161253 A

  The present invention has been made in view of the above points, and when there are a plurality of stop positions, the stop positions are clearly indicated to the driver, and the operation support (so that the train can be operated smoothly ( That is, an object is to provide a stop position display system for assisting operation.

  In order to solve the above-mentioned problems, a stop position display system according to the present invention includes a plurality of display units that are arranged at a plurality of locations corresponding to the stop position and perform visual display, and an operation management that has information on train operation management. Select a device, a transmission device that transmits a signal formed based on operation-related information acquired from the operation management device, a wireless reception unit that receives a signal from the transmission device, and one display unit among a plurality of display units And a display circuit for setting a display state.

  In the said stop position display system, a stop position can be clearly shown to a driver | operator by selectively making said one display part a display state among several display parts with a display circuit. That is, the operation can be supported so that the train can be operated smoothly.

  In a specific aspect of the present invention, the display circuit sets the one display unit to a display state based on a signal obtained from the wireless reception unit.

  In another aspect of the present invention, the display circuit is brought into a display state by lighting only the one display portion. In this case, the stop position can be clearly indicated to the driver by lighting only the one display unit.

  In still another aspect of the present invention, the display circuit puts the one display section into a display state when the train completes entering the home track. In this case, the stop position can be displayed upon completion of entry of the train into the home track. Note that the completion of entry to the home track means that the rear end of the train has entered the home track in principle, as long as the information for display operation by the display circuit is available, The present invention is not limited to the above case, and for example, it may mean that the front end of the train has entered the home track.

  In still another aspect of the present invention, the transmission device transmits a signal formed based on the operation-related information to the wireless reception unit when the train completes entry to the home track. In this case, the timing of the stop position display can be made appropriate while using the operation related information.

  In still another aspect of the present invention, the display circuit puts the one display unit into a non-display state after a predetermined time from when the train has completed entering the home track. In this case, for example, power consumption associated with the display can be suppressed while appropriately displaying the stop position.

  In still another aspect of the present invention, a generator for operating the wireless reception unit is further provided in association with the wireless reception unit. In this case, the power required for the operation of displaying the stop position can be secured by the generator.

  In still another aspect of the present invention, the operation-related information passed from the operation management device to the transmission device includes a train organization, a travel type, and an entry number line.

It is a figure which shows the mode of the station in which the stop position display system of this embodiment was integrated. It is a figure explaining the structure of the stop position display system of this embodiment. (A) is a figure which shows about an example of a display part, shows the case where a display part is a light extinction state, (B) is a figure which shows the case where the display part shown to (A) is in a lighting state, (C) is a figure which shows notionally the state which installed the some display part on the track | line, (D) is a figure shown about the modification of a display part. It is a flowchart explaining an example of the display operation of the stop position based on the stop position display system of this embodiment.

  FIG. 1 is a diagram illustrating an example of a station in which a stop position display system 100 according to an embodiment of the present invention is incorporated. In the illustrated example, as indicated by an arrow A1, the train TR enters from the right to the left in the drawing. Moreover, in the form of the station shown in the figure, the track branches off in front of the station, and the train TR can be stopped at both ends of the platform PF of the station. In other words, the lane RO constituting the track branches into two lanes RO1 and RO2 in front of the station, and the vehicle can be stopped on each lane RO1 and RO2. In addition, regarding a stop, even if it permits stopping a train to each of two lanes RO1 and RO2, it may stop only to either one. In addition, a home track TC corresponding to the range of the track circuit belonging to the station in the track circuit is defined in and around the station. The home track TC serves as a reference for recognizing the train TR entering the station. For example, when performing normal train operation management in the station, the home track TC has an opportunity to start various signal processing. This is determined by the entry of the train TR to the home track TC. The length of the home track TC may be various depending on the size of the station, train, etc. For example, the length of the home track TC is set to about 300 meters with the center of the station (for example, the middle of the platform PF) as the central position. . As for the approach of the train TR to the home track TC, the entry completion basically means that the rear end of the train TR, that is, the entire train TR has entered the home track TC, but is not limited thereto. For example, it may mean that the front end of the train TR has entered the home track TC.

  As shown in FIGS. 1 and 2, a stop position display system 100 according to an embodiment of the present invention includes an operation management device (TCC) 10, a train information processing device 20, and a wireless transmission device 30 that is a transmission device. A plurality of stop position display devices 50 and a power generation unit 70 that is a generator are provided. In particular, in the present embodiment, each stop position display device 50 provided in each lane RO1, RO2 has a plurality of display units 60 that are arranged at a plurality of locations corresponding to the stop positions and perform visual display. ing.

  The stop position display system 100 turns on and displays one display unit 60 among a plurality of display units 60 installed at locations corresponding to the stop position for the train TR entering the station, that is, selects the display unit 60. In this system, the stop position is clearly indicated to the driver, and the train TR is stopped at the correct position with respect to the platform PF to assist the smooth operation of the train. As will be described in detail later, various traffic lights SS, SS1, SS2 for transmitting signals relating to normal operation management, guidance display boards (not shown), and the like are installed at the station. Operation control is performed by operation control. On the other hand, the stop position display system 100 is not involved in the operation control that affects the operation like the various traffic lights SS, but as a supportive / auxiliary operation for smoothly operating the train, It is responsible for the control related to the operation of lighting display of the display unit indicating the stop position of the train. Here, although mentioned later in detail, among the things which comprise the stop position display system 100, the operation management apparatus 10 and the train information processing apparatus 20 perform the process regarding normal operation management as an existing system. As described above, the stop position display system 100 that performs supportive and auxiliary operations and is not involved in normal operation management performs normal operation management of the operation management device 10 and the train information processing device 20. It is not used as a component of the system, but exclusively as a means for acquiring information for supporting / assistant operations. In other words, the stop position display system 100 is merely configured to share or divert the operation management apparatus 10 and the train information processing apparatus 20 with a normal operation management system, and the stop position display system 100 is normal. It is not involved in operation management.

  In the operation support operation of stopping at a correct position among a plurality of stop targets using the stop position display system 100 as described above, the stop position to be displayed is only a guideline, for example, the driving technique of the driver. Even if there is a situation where the vehicle is slightly out of the stop position depending on the level of proficiency, there will be no problem in operation management immediately. In this respect, the control performed by the stop position display system 100 is significantly different from the operation control under normal operation management in which it is necessary to strictly observe whether the train is stopped or entered. However, for example, if the driver makes a mistake in the stop position and deviates greatly from the original stop position, readjustment of the stop position or the like is required, which may affect the operation. Therefore, using the stop position display system 100 that performs a supportive / assistant operation has great significance in preventing such a situation in advance.

  Note that FIG. 1 shows only the train TR that travels from the right to the left as described above. However, when there is a train (opposite vehicle) that travels from the left to the right, the oncoming vehicle For this purpose, it is assumed that a similar stop position display system 100 is provided.

  The operation management device 10 is a device having information related to train operation management. The operation management device 10 manages various types of information such as track conditions in the station and, for example, a central management system (not shown) that manages information on all trains and all stations in operation, and operations at other stations. Communication with the management device is possible, and various signal control processes for operation in the station are performed in response to information from the central management system and operation management devices in other stations. In other words, the operation management apparatus 10 has operation-related information that is information related to operation such as various information related to an approaching train and various information related to the situation of the station, and general operation management of the train TR entering the station. Is controlled. The operation management device 10 is configured to transmit operation-related information such as train departure time and departure number line information of the station to the train information processing device 20. However, in this embodiment, as described above, the stop position display system 100 is not a system that performs control related to operation management, but is a system that shows the stop position of the train to the driver, and supports the operation. Is. Therefore, as the stop position display system 100, the operation management apparatus 10 which is a component is used exclusively as an apparatus for obtaining information necessary for determining the stop position of the train.

  The train information processing device 20 performs various processes related to train information based on the operation related information acquired from the operation management device 10. For example, as shown in FIG. 2, the train information processing device 20 is stored in the display control unit 21 that performs a display operation related to train operation, a storage unit 22 that stores various information related to operation-related information, and the storage unit 22. And an interface unit 23 for transmitting information to the outside. For example, the train information processing device 20 displays the diamond information on a guidance display board (not shown) installed on the platform PF of the station based on the diamond information transmitted as a part of the operation related information from the operation management device 10. It functions as a train operation display device. That is, the train related information transmitted from the operation management device 10 to the train information processing device 20 includes a train organization, a travel type, and an entry number line. However, in this embodiment, as described above, as the stop position display system 100 that is a system for indicating the stop position of the train, the train information processing apparatus 20 stores various types of information related to operation related information and will be described later. It is assumed that it is used only as a device for transmitting the information to the wireless transmission device 30. In other words, the train information processing device 20 that constitutes the stop position display system 100 is configured as a control other than the control for the train operation, that is, as an auxiliary operation for supporting the train operation. Is used for signal transmission related to information necessary for the operation of turning on / off the display unit.

  The wireless transmission device 30 receives the signal formed in the train information processing device 20, that is, the signal formed based on the operation related information including the train organization, the travel type, and the entry number line through the interface unit 23. And a wireless type transmission device that transmits to the stop position display device 50.

  The stop position display device 50 is a device for displaying the stop position of the train, and a plurality of stop position display devices are provided in the illustrated example. This is because, for example, as shown in FIG. 1, it is assumed that one stop position display device 50 is provided for each lane. As shown in FIG. 2, each stop position display device 50 includes a control unit 51, a wireless communication unit 52 that is a wireless reception unit, an LED drive unit 53, and a power supply unit 54. As described above, in the present embodiment, the stop position display device 50 further includes a plurality of display units 60 that are arranged at a plurality of locations corresponding to the stop positions and perform visual display. More specifically, in the illustrated example, two display units 60 are provided for one stop position display device 50. The control unit 51 forms information related to the display of the stop position of the train based on the operation-related information acquired from the wireless transmission device 30 via the wireless communication unit 52, and a plurality of information via the LED drive unit 53 according to the information. It is a display circuit that controls the driving operation of the display unit 60. Note that a configuration in which three or more display units 60 are provided for one stop position display device 50 is also possible.

  Hereinafter, a configuration example of the display unit 60 will be described in detail with reference to FIG. As shown in FIG. 3A and FIG. 3B, each display unit 60 is a triangular member, and the light emitting unit 60a disposed in the center is formed of LED elements. The light emitting unit 60a is turned on / off according to a drive signal transmitted from the LED drive unit 53 (see FIG. 2 and the like). For example, as shown in FIG. 3C, the plurality of display units 60 are arranged on the center side of the sleepers TI so as to be easily recognized by the driver, and the plurality of display units 60 are different along the tracks. By being arranged on the TI, different stop positions are indicated. For example, among the plurality of display units 60, the surface of the light emitting unit 60a of the display unit 60 positioned on the near side along the traveling direction of the track is attached with a numeral “6”, and the display positioned on the back side. The surface of the light emitting part 60a of the part 60 is numbered “8”. In this case, the display unit 60 labeled “6” indicates the stop position in a train with six cars, and the display unit 60 labeled “8” indicates the stop position in a train with eight cars. In the above example, two display units 60 are installed in one lane. However, how many display units 60 are arranged in one lane can be considered variously, depending on the number of vehicles as described above. In addition, for example, the stop position may be different depending on whether it is an express train or a train at each station. In addition, each display part 60 is the size of the grade which becomes low enough with respect to the height of rail RL so that the operation of a train may not be disturbed.

  Further, in the example shown in FIG. 3A and the like, one display unit 60 has one light emitting unit 60a, and in this case, for example, it can be configured by one LED (for example, white LED). However, as shown in FIG. 3D as a modified example, the light emitting unit 60a may be configured with a plurality of light emitting portions Pa (in the illustrated case, three light emitting portions) using a plurality of LEDs. In this case, for example, it is possible to change the lighting state in which the number of lighting of the light emitting portion Pa is changed according to the distance between the train to be stopped and the display unit 60. In any example, by setting the lighting color in the light emitting unit 60a to a color other than red, blue, and yellow, it can be distinguished from the color used for the traffic light in normal operation management.

  Returning to FIG. 2, the power generation unit 70 is a generator associated with the stop position display device 50 including the wireless communication unit 52 that is a wireless reception unit, and here, in particular, generates power by vibration power generation. . As shown in FIG. 1, the power generation unit 70 is a system that is installed, for example, in a track or in the vicinity of the track, and stores electricity by vibration of a train transmitted through the track. Since the power supply unit 54 of the stop position display device 50 is connected to the power generation unit 70, the stop position display device 50 is supplied with power from the power generation unit 70 and supplies power to components such as the wireless communication unit 52. It is possible. That is, the stop position display device 50 can be installed at or near the stop position of the train where the display unit 60 should be installed without requiring a connection cable for receiving power from the outside. In this case, it is particularly suitable when the signal transmission is a wireless type. If the power generation unit 70 is arranged in the vicinity of the stop position display device 50, the power loss can be suppressed as much as possible.

  Here, with reference to FIG. 1 etc., the normal operation management of the train based on control by the operation management apparatus (TCC) 10 is demonstrated easily. As described above, the operation management apparatus 10 performs various control operations for managing the operation of the train at the station based on the operation related information. For example, as shown in FIG. 1, the station displays an on-site traffic light SS provided on the entrance side of the station, for example, for an on-site signal indicating whether or not the vehicle can enter the home truck TC, and the departure from the station. There are various traffic lights such as departure traffic lights SS1 and SS2 provided for the lanes RO1 and RO2 branched for the departure signal, and the operation management device 10 transmits various signals for confirming the operation to them, It supervises train operation management. In addition, as described above, various information for providing information on the train to the station premises is transmitted to the train information processing apparatus 20. In addition, about the start of the transmission process of these signals, it can be based on the presence or absence of approach of train TR to the home track TC determined suitably, for example.

  On the other hand, in the stop position display system 100 of the present embodiment, the stop position is displayed for the train as one of operations other than the normal operation management of the train by the operation management device 10 as described above. Assisting the operation. In the operation by the stop position display system 100, various types of information in normal train management are used. In other words, the operation management device 10 and the train information processing device 20 constituting the stop position display system 100 function only as providing information necessary for displaying the stop position of the train. More specifically, in the operation of the stop position display by the stop position display system 100, only the operation related information managed by the operation management device 10 is acquired and used, and the train operation management by the operation management device 10 is performed. It does not affect the operation of. In addition, the stop position display system 100 performs the operation | movement which displays a stop position with respect to a train at an appropriate timing according to the train management by using the operation related information managed by the operation management device 10. Is possible.

  Hereinafter, with reference to the flowchart of FIG. 4 and the like, the details of an example of the operation of the stop position display by the stop position display system 100 will be described, mainly the operation of the plurality of stop position display devices 50 constituting the stop position display system 100. This will be explained. In addition, since the operation | movement of the stop position display in each stop position display apparatus 50 is the same, here, operation | movement by the one stop position display apparatus 50 is mainly demonstrated.

  First, in the stop position display device 50, the control unit 51 confirms information regarding the approach of the train that can be acquired from the operation management device 10 via the wireless communication unit 52 (step S1), and the train TR is the home track TC. The train entry confirmation is continued until information on completion of entry to the station is acquired (step S2). When confirming that the train TR has entered the home track TC (step S2: Yes), the control unit 51 displays a stop to be displayed based on the operation-related information from the operation management device 10 via the wireless transmission device 30. A signal including information for determining the position is acquired (step S3). Based on the acquired signal, a driving signal is transmitted to the plurality of display units 60 via the LED driving unit 53 (step S4), and a plurality of displays are displayed. The display unit lighting process is performed to control one of the units 60 to light up one display unit 60 and not to turn on the other display unit 60 (step S5). Further, the control unit 51 checks whether 20 seconds have elapsed after the train has entered the home track (step S6). If not (step S6: No), the display unit lighting of step S5 is turned on. When the process is continued and 20 seconds have elapsed (step S6: Yes), the one display unit 60 that has been lit is extinguished (step S7), and the operation of the stop position display is ended.

  Among the above-described operation processes, for example, in step S2, the process for lighting operation of the display unit 60 is started with the completion of entry into the home track TC. In the operation management device 10, for example, at the stage where the train has entered the home track TC, the train related information such as train formation, type of express / stop at each station, train information such as entry number line, etc. This information can be output and various signal control for operation management based on the information is started. That is, in step S2, the completion of entry into the home truck TC is used as an opportunity to start the process for the lighting operation of the display unit 60, so that the stop position to be displayed can be determined based on operation related information including information that can be determined. Thus, the stop position can be displayed in accordance with the timing of normal operation management processing.

  Further, among the above, regarding the processes in step S2 and step S3, when the way of viewing is changed, when the train TR completes entry into the home track TC, the signal generated by the wireless transmission device 30 based on the operation related information is wireless It can be said that it is transmitting to the wireless communication part 52 which is a receiving part.

  Further, among the above, in step S4 and step S5, control is performed so that one display unit 60 is lit and the other display units 60 are not lit, that is, one display unit 60 is selected from the plurality of display units 60. However, as a transmission signal for such control, for example, in order to specify a plurality of display units 60 to be processed, a plurality of stop targets that are targets in advance are specified. It is possible to attach numbers (channel IDs) for specifying the respective display units 60 and transmit an on or off signal for each number. That is, a mode in which an ON signal is transmitted only to one display unit 60 corresponding to what should be turned on and an OFF signal is transmitted to the other display units 60 is possible. Moreover, the aspect of transmitting the signal to the effect of turning on the number corresponding to one display unit 60 corresponding to the one to be lit among the plurality of target display units 60 is also possible.

  Of the above, in step S6 and step S7, when a certain time (20 seconds in the above example) has elapsed after the train has entered the home track, the lit display unit 60 is turned off, that is, in the non-display state. It is controlled so that. Thereby, in the case of using a power generator that generates power by vibration power generation exemplified as the power generation unit 70, for example, power consumption associated with display can be suppressed while appropriately displaying the stop position.

  In addition, although said operation | movement is performed with respect to all the stop position display apparatuses 50 installed in the station, in the example shown in FIG. 1, the stop in only one of two lanes RO1 and RO2 is permitted. If it is, only one display part 60 corresponding to one train among all the display parts 60 each provided in all the stop position display apparatuses 50 in the figure will be turned on and off as described above. The other display unit 60 is controlled so as to remain unlit, so that the driver can be reliably notified of the stop position.

  As shown in FIG. 1, when there are two lanes RO1 and RO2 and each train is allowed to stop, that is, when two trains are allowed to stop simultaneously, each lane For each of RO1 and RO2, one display unit 60 among the plurality of display units 60 is turned on and off. In other words, among the plurality of display units 60 provided in the first stop position display device 50 arranged on the first lane RO1, one display unit 60 corresponding to one train that stops on the lane RO1. For one train that stops on the lane RO2 among the plurality of display units 60 provided on the second stop position display device 50 arranged on the second lane RO2, One corresponding display unit 60 performs the operation of turning on and off.

  As described above, in the present embodiment, the stop position display system 100, for one train TR entering the station, includes the display unit 60 among the plurality of display units 60 when the train TR completes entry into the home track TC. The lighting operation is performed so that only one display unit 60 corresponding to the stop position of the train is turned on, that is, a selective display state is set. That is, a visual display is given to the driver of the train. As described above, the stop position is clearly indicated to the driver, and the operation can be supported so that the train can be operated smoothly.

  The present invention is not limited to the above embodiments or examples, and can be implemented in various modes without departing from the scope of the invention.

  In the above description, the display unit 60 has a triangular shape and is arranged on the sleepers TI. However, the display unit 60 can visually recognize the stop position without disturbing the progress of the TR of the train. If it is, it can be made into various shapes and can be arranged at various locations. Moreover, it should just be installed so that the target stop position may be shown at the time of the stop of train TR, for example, it can also be assumed that it can move along a track.

  In the above description, one light emitting unit in the display unit 60 is lit and displayed in a single color (for example, white), but the color of the light emitting unit can be changed. In this case, for example, a mode in which the signal is turned on with a color other than red, blue, and yellow (for example, orange) indicating the signal and the color is changed to white as the train approaches the stop position may be considered. Further, by using the fact that the angle at which the driver views the display unit 60 changes as the train approaches the display unit 60, for example, by arranging a lenticular lens in front of the light emitting unit 60a, the appearance of the display unit 60 May be changed.

  In the above description, an LED light source is used for the display unit 60. However, other light sources may be used, and visual display may be performed by a method other than lighting / extinguishing. . For example, a rotatable object may be provided in each display unit 60 and only the display unit 60 corresponding to the stop position may be rotated. Further, a rotatable object and an LED light source may be combined.

  In the illustration of FIG. 1, the lane RO is assumed to branch into the first lane RO1 and the first lane RO1, but a plurality of lanes RO may be used even when there are no branches or when there are three or more branches. When the display unit is provided, it is possible to display the stop position by providing a device similar to the above.

  Moreover, in the above, for example, the train information processing device 20 that functions as a train operation display device that displays diagram information acquires information from the operation management device 10, and therefore, by using this information, the stop position display device Information for determining the stop position displayed by 50 is obtained. However, the aspect of acquiring information for determining the stop position to be displayed is not limited to the above. For example, as a device capable of acquiring information related to train operation management, a device for acquiring train information is independently located at a position several hundred meters away from the center of the station according to the range of the home truck TC (for example, from the center of the station). It is also conceivable that the information for determining the stop position to be displayed is acquired from the apparatus. In addition, in the case of this aspect, the said apparatus will correspond to the operation management apparatus which has the information regarding the operation management of a train.

  In the above description, the operation management system includes the operation management device 10 and the train information processing device 20. However, the operation management system can have various modes other than those described above. In the embodiment, the stop position display system 100 can determine information necessary for determining the stop position from the operation management system, that is, which display unit 60 among the plurality of display units 60 should be lit. As long as the information can be acquired, any kind of operation management system can be used.

  DESCRIPTION OF SYMBOLS 10 ... Operation management apparatus, 20 ... Train information processing apparatus, 21 ... Display control part, 22 ... Memory | storage part, 23 ... Interface part, 30 ... Wireless transmission apparatus, 50 ... Stop position display apparatus, 51 ... Control part, 52 ... Wireless Communication part 53 ... LED drive part 54 ... Power supply part 60 ... Display part 60a ... Light emission part 70 ... Power generation part 100 ... Stop position display system A1 ... Arrow Pa Pa Light emission part PF ... Platform RL ... Rail, RO, RO1, RO2 ... Lane, SS, SS1, SS2 ... Traffic light, TC ... Home track, TI ... Sleeper, TR ... Train

Claims (6)

A stop position display device for controlling a plurality of display units provided for each lane and arranged corresponding to different stop positions;
Obtained as a base point the center of the station of the station platform, the rather long than the platform, and when the train to the home track corresponding to the range of the track circuit sections belonging to the station is completed entered from the operation control device was information about the lighting of the plurality of display portions on the basis of the operation related information, and a train information processing apparatus to be transmitted to the stop position indicator device,
The stop position display device continues the train entry confirmation to the home track until completion of the train entry, and confirms the completion of the train entry, acquires information on lighting of the plurality of display units, and based on the obtained information A stop position display system that transmits a drive signal to the plurality of display units to control lighting . 2. The stop position display system according to claim 1, wherein the stop position display device includes a generator that generates power by vibration of a train, and receives information from the train information processing device wirelessly. The stop position indicating device, the installed near the generator, the supplied from the generator, the stop position display system according to claim 2 without receiving power from the outside. A transmission device for transmitting a signal formed based on information transmitted from the train information processing device;
A wireless receiver for receiving a signal from the transmitter;
4. The display circuit according to claim 1, further comprising: a display circuit configured to selectively display one of the plurality of display units based on a signal obtained from the wireless reception unit. 5. Stop position display system.   The said display circuit is a stop position display system of Claim 4 which makes said one display part a non-display state after the predetermined time from the time when a train completed entry to a home track.   The stop position display system according to any one of claims 1 to 5, wherein the operation related information from the operation management device includes a train organization, a travel type, and an entry number line.

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