JP4301888B2 - Train control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a train control device, and in particular, when performing train control by performing wireless communication between a ground device and an on-vehicle device, the train that has lost the wireless communication function can be safely evacuated, and other normal Related to a safe train.
[0002]
[Prior art]
Conventionally, a train control system using a wireless ranging system has an on-board radio mounted on a train (including an iron train and a rubber-tired urban lightweight train), and a predetermined distance along the track along which the train travels. A wireless network is formed with a plurality of alongside radios installed at intervals, and the train position is determined by measuring the radio propagation delay (time) between the onboard antenna of the onboard radio and the alongside antenna of the alongside radio. It detects and is comprised so that train control may be performed based on the detected train position (refer patent document 1). In addition, many proposals have been made as train control for performing train control by performing wireless communication between a ground device and an on-board device (see Patent Documents 2 and 3).
[0003]
As shown in FIG. 4, the train control system using the above-described wireless ranging system is equipped with an on-board radio device b having an on-board antenna a0 on each train A, and a track T on which the train A travels. A plurality of (three in the illustrated example) along-line radios (ground radios) c1, c2,..., Which are provided with along-line antennas (ground antennas) a1, a2,. Then, based on the radio propagation delay corresponding to the distance between the on-board antenna a0 and the along-line antenna, which is measured in advance, the distance between the on-board antenna position and the along-line antenna position is a train position provided on the ground (not shown). A database is stored in the memory of the detection device. Therefore, in the position calculation unit of the train position detection device, the current on-board antenna position is determined by calculating the real-time distance between the respective antennas a1, a2,. The train position (train a) related to the on-board antenna a0 can be detected from the determined installation position of the on-board antenna a0. In addition, on the ground, the detected train position of train A can be transmitted to a train (not shown) having the train A as a forward train.
[0004]
The on-board device a mounted on the train A includes an arithmetic unit configured with a CPU at the center. The own train position obtained from the ground side, the front train position, or the front stop position such as the traffic signal display and the like A speed control pattern can be created based on predetermined information such as the brake characteristics of the own train. Then, the on-board device a refers to the own train speed obtained from the speed generator G and controls the traveling of the train A along the speed control pattern. When the train speed exceeds the speed control pattern, the on-board device a drives the brake. A signal can be output.
[0005]
In addition, the applicant of the present invention is not limited to the train management area including the branching part (switching device) of the train control system using the above-described wireless ranging method, that is, the train management such as the station yard and the garage controlled by the interlocking device. A train control system that can monitor and manage the trains in the area safely and efficiently is proposed separately. The train control device according to this proposal can monitor and manage a train in the same way as a track circuit is formed in a certain train management area including a branching section, so that the radio function of the train is temporarily lost. There is also a feature that can be controlled safely. The train control device according to this proposal will be described in detail later.
[0006]
[Patent Document 1]
Japanese Patent No. 2738464 [Patent Document 2]
Japanese Patent Publication No. 7-29606 [Patent Document 3]
Japanese Patent Laid-Open No. 2000-211153
[Problems to be solved by the invention]
The above-mentioned radio distance measuring method and other train control devices that perform train control by radio communication between the ground and the vehicle have many advantages such as not requiring a track circuit, but for some reason, When the radio function is lost, the train control by radio of other normal trains is hindered unless the train with the lost radio function is evacuated to a safe place. For this reason, it has been desired to make it possible to safely and promptly move a train that has lost its wireless function.
[0008]
Therefore, the present invention has been made to meet the above-mentioned demands, and its purpose is to enable safe and prompt movement of a train with a lost wireless function and a normal wireless function. It is an object of the present invention to provide a train control device that is not disturbed as much as possible and safe.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the train control device according to the present invention is characterized in that the invention according to claim 1 is arranged on a main line centering on a branch portion connecting the main line of the track on which the train travels and the branch line. Train management area formed with the length of the train, a train management area having a predetermined length on both sides of the train management area, respectively, and a predetermined length on the branch line A train management area group composed of train management areas formed, and detecting a train entry into each train management area of the train management area group and a train advancement from within each train management area, at least A transponder device provided in the vicinity of a branch traveling safety ensuring area (meaning a chained section or other locked section area) of a branching section or a route , an onboard radio mounted on the train, and the train Along the track Formed by radio, and a wireless network for detecting the train location by radio propagation delay between the onboard antenna of the vehicle radio and wayside antenna of the wayside radio, the train management area by the wireless network Based on the train position obtained by wireless communication with the trains in the group and the train position by the transponder device, the trains in the train management area group are monitored by associating the two types of train positions. , Manage and monitor and manage to allow only one train in the train management area including the branching section, and the wireless network in the train management area group when the train was impaired wireless communication function has occurred, the management area where the train is present which impaired train the wireless communication function in the management area are other neighboring If you try to enter sends a train control information to be safely stop at the boundary before against trains in said management area that the neighbor with the wireless network, then the train was impaired wireless function And a train management machine control means for monitoring and managing the train by the transponder device.
The train control device according to claim 2 of the present invention is characterized in that the transponder device is a power source type or a non-power source type.
Train control system according to claim 3 of the present invention, rail status of the train in the train management machine, it is characterized in that stored in the memory without loss of memory during a power failure.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a train control device according to an embodiment, and FIG. 2 is a detailed view of the train management region portion of FIG. 1, which corresponds to the train control device according to the previous proposal. The same components as those in FIG. 4 will be described using the same reference numerals. Hereinafter, FIG. 2 will be described first.
[0011]
In FIG. 2, A, B, and C are train management areas (hereinafter referred to as “management areas”) within a certain range of a main track T that the train travels (hereinafter, this track T will be described as the main track T). Is shown. Of these management areas A, B, and C, the management area B located in the middle includes a branching portion P having a switch. Further, in FIG. 1, T ′ is a branch line connected to the main line T via a switch, and one management region D is also formed in this branch line T ′.
[0012]
In FIG. 2, each on-board radio b equipped with an on-board antenna a0 is mounted on each of the trains a, b, and c (each train has the same configuration and will be described as an example). . Although this on-board radio device b is omitted in FIG. 2, predetermined train-side radio devices (c 1, c 2... In FIGS. 1 and 4. Reference) and communication with the train management machine 1 which will be described later. That is, this train A is also configured to be able to detect the train position by the wireless distance measuring method, similarly to the train A shown in FIG. Therefore, on the ground, the detected train position of train A can be transmitted to a train (not shown) having the train A as a forward train.
[0013]
The on-board device a mounted on the train A includes an arithmetic unit configured with a CPU at the center. The own train position obtained from the ground side, the front train position, or the front stop position such as the traffic signal display and the like A speed control pattern can be created based on predetermined information such as the brake characteristics of the own train. Then, the on-board device a refers to the own train speed obtained from the speed generator G and controls the traveling of the train A along the speed control pattern. When the train speed exceeds the speed control pattern, the on-board device a drives the brake. A signal can be output.
[0014]
The train management machine 1 has the same ground radio equipment 1a as that provided in the railway radio equipments c1, c2,..., And trains in at least the train management area via the antenna a ′ of the ground radio equipment 1a. (In the example shown in the figure, trains A, B, and C) are configured to be able to transmit and receive via or along the wayside radio. And this train management machine 1 has the ground apparatus 1b comprised by the arithmetic unit centering on CPU, and it has the position information of each train received via the ground radio | wireless machine 1a, and the boundary of a train management area | region. Based on the train passing information from the installed transponders 2a to 2e for the transponder, it is possible to detect the on-line state in the train management area and store the on-line state of the detected train in the memory M. Yes.
[0015]
In FIG. 2, 2 a to 2 e are power supply type ground elements for transponders, and these ground elements 2 a to 2 e are connected to the train management machine 1 , respectively. Among these ground elements 2a to 2e, the ground element 2a is provided on the start end side of the management area A (the left end side of the management area A in FIG. 2), and the ground element 2b is a boundary position between the management area A and the management area B. The ground element 2c is provided at the boundary between the management area B and the management area C, the ground element 2d is provided at the terminal side of the management area C (the right end side of the management area C in FIG. 2), and The ground element 2e is provided at a position corresponding to the ground element 2c on the boundary side between the management area D and the management area B provided in the branch line T ′.
[0016]
FIG. 3 is an example of the memory contents of the memory M of the train management machine 1 and stores identification information (train ID) of trains in each management area A to D. In the illustrated example, the on-line state of FIG. 2 is stored. In the management area A of the memory M, the train ID “001” of the train A is stored, and in the management area C, the train ID “003” of the train C is stored. In the management area D, the train ID “002” of the train B is stored. The memory M is composed of a nonvolatile memory or a memory backed up by an uninterruptible power supply, and is devised so that the stored contents are not lost even if a power failure occurs.
[0017]
As described above, the trains in the management areas A, B, and C on the main line T are the same as when the track circuit is formed between the ground elements 2a and 2b, between 2b and 2c, and between 2c and 2d. Train detection is possible. Further, the traveling direction of the train on each ground element is also detected using the speed generator G. For example, when train i is present between ground elements 2a and 2b, train i proceeds from ground element 2a to ground element 2b based on speed generator G that generates two-phase output pulses that differ by 90 °. Or the direction in which the train a reversely travels between the ground elements 2a and 2b for some reason (the direction where the train A travels from the ground element 2b to the ground element 2a) is detected, and the detected train The traveling direction is transmitted and managed to the train management machine 1 via the on-board wireless device b or the ground unit. Of course, as for the position of this train, the leading position and the trailing position centered on the vehicle upper e are accurately grasped.
[0018]
When the train management machine 1 cannot monitor based on information on the radio from the on-board (train A) due to the failure of the on-board radio b or a power failure or the like, the train A is The brake operates and can be stopped safely. The trains in each of the management areas A to D can be wirelessly communicated with the train management machine 1 so that the train position can be monitored and managed by the train management machine 1, and 2e can be used to detect a train for each management area. Therefore, if there is a train with poor wireless communication between the ground and the vehicle due to a power failure, etc., emergency stop control is performed for all trains in the management area where the train is located, and For trains that are about to enter, control is performed before the boundary, and normal operation is allowed for trains that do not attempt to enter the management area, ensuring safety through simple processing, There is a feature that the train can be moved to a predetermined position.
[0019]
Furthermore, since the memory M of the train management machine 1 is configured so as to cope with a power failure such as a nonvolatile memory, the train stored in the memory M is stored when the power is turned on at the first departure or when the power failure is restored. It is possible to check the coincidence state by comparing the standing line status and the newly received train standing line information, and the start-up process can be performed safely and efficiently.
[0020]
In the above-described example, the ground elements 2a to 2e are the power source type, but may be the non-power source type. In this case, when the vehicle upper element e passes through each of the ground elements 2a to 2e, the identification information (position information) of the passed ground element and the train traveling direction information are set together with the ID of the own train on the vehicle radio b. Is transmitted to the train management machine 1. For example, when the train i passes the ground unit 2a, the identification number “001” of the ground unit 2a, the traveling direction, and the identification number “001” of the train unit 1 are wirelessly transmitted to the train management unit 1. Sent. Therefore, the train management machine 1 can detect that the train A has entered the management area A through the ground element 2a and can store the fact in the memory M.
[0021]
Hereinafter, the train control operation in the train control apparatus having the above configuration will be described with reference to FIGS. 1 and 2. First, it is assumed that the trains A and B are both normal and proceed toward the management area A side. In the case where the train A is a train that passes through the management areas A, B, and C, in the train A, the stop target set at a position (not shown) beyond the management area from the own train position obtained by the wireless ranging method. A speed control pattern is created up to the point (this stop target point is set by the tail part of the train ahead of train A or by a stop indication signal, etc.), and the created speed control pattern is used. Operation control. The train manager 1 stores the train ID “001” of the train A in the memory M and deletes it every time the onboard e of the train A is coupled to each of the ground units 2a to 2d. Is done.
[0022]
In train b, as with train i, the position of the own train is obtained by wireless ranging, and the tail position of the train i of the front train obtained from the ground (wireless radio) is obtained via radio. A speed control pattern is created with the rear position of train A as the stop target point. Then, operation control using the created speed control pattern is performed.
[0023]
Next, in the state of FIG. 1, when a radio functional failure occurs in the train A, that is, the train radio has a fault in the onboard radio b for some reason in the management area A, and the nearby radio In the case of FIG. 1, the control operation when a failure that cannot communicate with the railway radios c3 and c4) occurs will be described.
[0024]
Since trains that have lost the wireless communication function cannot be controlled by the wireless ranging method, they are stopped when an abnormality occurs. In addition, it can be understood that an abnormality has occurred in train A due to the interruption of communication from train A on the radio device side (ground side). On the other hand, since train B obtains information from nearby radios (in the example of FIG. 1, radios c1 and c2 in the example of FIG. 1) that an abnormal condition has occurred in the train A which is the front train, Train B is progressing with the tail of the train a just before the stop being the stop target point.
[0025]
If a faulty train (Train A in the example shown in the figure) exists on the track T, it interferes with the operation of a normal train such as Train B, and thus must be promptly eliminated. Therefore, it is necessary to evacuate the train (I) whose radio function is impaired to the evacuation site. In the example of FIG. 1, the train A is evacuated to the management area D (see FIG. 2).
[0026]
The evacuation of the train A to the management area D is performed by driving the train A to the management area D while maintaining the safe speed when there is no other train in the front management area. At this time, when the vehicle upper e of the train A is coupled to the ground child 2a, the train A is placed under the monitoring and management of the train management machine 1. Therefore, it is possible to transmit the position of the starting end of the management area where the train a which is the forward train is located with respect to the train B which is the subsequent train via the train management machine 1 and the radio along the railway line. If b is detected by the ground element 2e and enters the management area D, there will be no obstacle on the main line T in front of the train, so that the train can perform normal operation control by the radio ranging method. Become.
[0027]
Incidentally, equipped with facilities for train trajectory T is controlled by the ATC can travel, also when the train Lee also has a car on device capabilities of the ATC to the on-board equipment a, from the track T (rail) An ATC signal can be transmitted to the train A to advance the train A to the management area D. In this case, the train A can be retreated at high speed by the ATC, and the train with the impaired radio function (the train A in the illustrated example) can be quickly removed from the main line T.
[0028]
In the above example, only one management area A is provided in front of the branching portion P, but it is predetermined on the near side of the ground element 2a (in the left direction of the ground element 2a in FIGS. 1 and 2). It is also possible to further provide a ground element while maintaining the interval, and to form another management area with the ground element and the ground element 2a to expand the management area. In this way, when the management area is expanded, the train management machine 1 can control the train with the radio function impaired by that amount. Also, a traffic light can be provided corresponding to the position of the ground element such as the ground element 2a.
[0029]
【The invention's effect】
The train control device according to claim 1 of the present invention is a train management system having a predetermined length on a main line centering on a branch part connecting a main line and a branch line of a track on which the train travels. A train consisting of a train management area having a predetermined length on both sides of the area, the train management area and having a predetermined length on the main line, and a train management area having a predetermined length on the branch line Detecting the entry of a train into each train management area of the management area group and the train management area group and the advance of the train from within each train management area, at least near the train running safety ensuring area of the branch or course The on-board antenna of the on-board radio and the radio along the line are formed by the transponder device provided, the on-board radio mounted on the train and the along-line radio provided along the track on which the train travels. Radio transmission between the antennas along the line And a wireless network for detecting the train position by the delay, said the train management area based on the obtained train position and train position by the transponder device by a train and a wireless communication that Zaisen the train management area groups by the radio network The trains in the group are monitored and managed by associating the two types of train positions, and the train management area including the branch is monitored and managed so that only one train is allowed. When the train management machine provided in the train management area group and the train in which the wireless communication function by the wireless network is impaired in the train management area group occurs, the train in the other adjacent management area has the wireless communication function. impaired when the train is about to enter the management area is present, secure the train control information to stop the radio network at the boundary before the The then sent to train adjoining management area, then monitors its train a train which impaired radio functions by said transponder device, since composed of a train management device control unit that manages the wireless function It is possible to quickly monitor and control trains that have been damaged in the management area so that normal train operation is not hindered.
In the train control device according to claim 2 of the present invention, since the transponder device is a power source type or a non-power source type, any type of ground unit can be employed. In particular, when using a power-supplied ground unit, the train position can be obtained via the ground unit even if wireless communication from the vehicle is poor. The cable can be omitted.
In the train control device according to claim 3 of the present invention, since the train presence state in the train manager is stored in a memory that does not lose its memory at the time of a power failure, it is effectively dealt with at the time of initial startup or at the time of power failure recovery. it is Ru can be.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of train control according to an embodiment of the present invention.
FIG. 2 is a detailed view of a train management area.
FIG. 3 is an example of memory contents.
FIG. 4 is a schematic configuration diagram of conventional train control.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Train management machine 1a Ground radio | wireless machine 1b Ground apparatus M Memory 2a-2e Ground element a0, a ', a1-a3 Antenna b On-board radio | wireless machine c1, c2 ... alongside radio | wireless machine d On-board apparatus i, b, c Train A , B, C, D Management area P Branch

Claims (3)

Train traveling track main branch line and the center predetermined train management area formed by a length on the main line to the branch portion connecting of the sides to a predetermined length of the train control area A train management area group consisting of a train management area formed on the main line and a train management area formed with a predetermined length on the branch line;
A transponder device that detects the entry of a train into each train management area of the train management area group and the advance of the train from within each train management area, and is provided at least near the branch travel or the route traveling safety ensuring area When,
It is formed by the on-board radio mounted on the train and the alongside radio provided along the track that the train travels, and between the onboard antenna of the onboard radio and the alongside antenna of the alongside radio. A wireless network for detecting the train position by wireless propagation delay;
Based on the train position obtained by wireless communication with the train existing in the train management area group by the wireless network and the train position in the train management area group based on the train position by the transponder device, the two types of trains A train management machine installed on the ground that monitors and manages by associating positions, and monitors and manages so that only one train is allowed in the train management area including the branch,
When a train in which the wireless communication function by the wireless network is impaired is generated in the train management area group, there is a management in which a train in another adjacent management area has a train in which the wireless communication function is impaired. When entering an area, train control information that should be safely stopped before the boundary is sent to the train in the adjacent management area by the wireless network , and then the wireless function is impaired. Train management machine control means for monitoring and managing the train by the transponder device;
A train control device comprising:   The train control device according to claim 1, wherein the transponder device is a power source type or a non-power source type. The train control device according to claim 1 or 2, wherein the on-line state of the train in the train management machine is stored in a memory that does not lose memory during a power failure.

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