JP2002087264A - Train traveling control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control the braking of a train without providing any database on the train. SOLUTION: This train traveling control system comprises a ground ATC device for transmitting a first distance x1 from each reference position to the stop position S from the ground to the train, and a digital ATC device 26 having a transponder which acquires a second distance x2 from the reference position 14 to the present position of the train 18, and controls the traveling of the train 18 based on the first and second distances x1 and x2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a train running control system for controlling running of a train, and more particularly to a technique for performing running control according to a distance to a stop position of a train.

[0002]

2. Description of the Related Art Conventionally, a system for performing travel control according to the distance to a stop position of a train has been known as an ATC (Automatic Transmission Control System).
matic Train Control) system. Here, a conventional ATC system will be described with reference to FIG.

In the ATC system 50, an on-board digital ATC device 66 provided on a train 56 includes
The reference position is recognized based on the information from. Further, the on-board digital ATC device 66 acquires the traveling distance from the reference position based on a signal from the speed generator 70 provided on the wheels 68, and thereby grasps the current position of the train 56.

In addition, the ground ATC is used for each of the closed sections (A to D).
A device 60 is provided, and this ground ATC device 60 is different from the digital ATC device 66 in the number of blocks ahead of the closed section (A to D) or the closed section (A) where the preceding train 58 exists. Blocked section ID indicating A to D)
And the on-board digital ATC device 66
2 to get this notification.

[0005] The train 56 is provided with a database 74 for storing the positions and section lengths of the closed sections (A to D), the positions of ground equipment such as the ground pieces 54, the slope of the rails 52, and the like. The on-board digital ATC device 66 refers to the database 74, specifies the closed section based on the closed section ID, and determines the position or distance of the ground equipment or the closed section itself associated with the closed section from the closed section ID. Is acquired, the position of each ground facility is recognized, and the current position of the train 56 is acquired based on the information.

The on-board digital ATC device 66 generates a pattern indicating a speed limit corresponding to the distance to the stop position S of the train 56 based on the position or distance obtained in this manner. And the on-board digital ATC device 66
The obtained current position and speed of the train 56 are compared with this pattern, and in order to surely stop the train 56 before the stop target position S, the train sections are controlled so that the speed of the train 56 does not exceed the speed limit.

[0007]

However, in the above-mentioned conventional system, since each train performs processing based on a database provided on the vehicle, there is a problem that the on-board device becomes complicated accordingly. Was. In addition, the database requires an update operation in accordance with a change in a traveling section, a change in a setting of a closed section, a change in the installation of ground equipment, and the like. There is a problem that the updating work is time-consuming because it needs to be performed for all trains that are subject to the change.

[0008]

In view of the above problems, a train travel control system according to the present invention for controlling travel of a train traveling on a rail on which a plurality of reference positions are set is provided. Transmitting means for transmitting the first distance from the ground to the train, receiving means for receiving the first distance on the vehicle, and obtaining a second distance from the reference position to the current position of the train on the vehicle Means, traveling control means for performing traveling control of the train based on the first and second distances,
Is provided. According to such a configuration, the running control of the train can be performed without having a database on the car.

Further, in the present invention, the vehicle further includes a ground child for notifying a position corresponding to the reference position on a vehicle, and the obtaining means includes a vehicle child for receiving a notification from the ground child, and receiving the notification. Means for integrating the mileage from the point in time. According to such a configuration, the distance from the reference position to the train position can be acquired more easily and reliably.

[0010] In the present invention, the first distance received by the receiving means, the notification received by the vehicle child,
Are input to the same information processing apparatus and processed. According to such a configuration, the size and weight of the on-board device can be reduced.

In the present invention, the reference position is set for each of a plurality of sections that divide the rail.
A transmission unit that transmits rail information in a section corresponding to the reference position, and a reception unit that receives the rail information, wherein the traveling control unit further performs traveling control of the train based on the rail information. It is preferred to do so. According to such a configuration, it is possible to realize running control of the train reflecting the state of the rail.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a train traveling control device according to an embodiment of the present invention. First, the configuration of each unit of the train traveling control system 10 according to the present embodiment will be described with reference to FIG.

In this embodiment, a reference position 14 (14A to 14D) is set on the rail 12 for each closed section (A to D). The reference position 14 is set, for example, as a position near a boundary point on the near side in the traveling direction of the train 18 for each of the closed sections (A to D).

The stop position S for the train 18 is set as a point a predetermined distance before the reference position 14D corresponding to the closed section D where the preceding train 20 is present, for example, to absorb distance measurement errors. Device 22 (22A
-22D), the stop position S from each reference position 14
A distance signal indicating the distance to is generated. Note that these ground ATC devices 22 are connected to each other by wire or wirelessly, and
A block section ID indicating the block section D in which the data exists, or information indicating the stop position S is transmitted and received. The ground AT
The C device 22 also functions as a TD device (Train Detector).

A ground ATC device 22 provided for each of the closed sections (A to D) transmits the generated distance signal to the train 18. More specifically, each ground AT
The C device supplies a distance signal to the rails 12 of the corresponding closed sections (A to D). Each of the trains 18 is provided with a power receiver 28, and the power receiver 28 receives the distance signal by inductive coupling with a rail. Then, the received distance signal is input to the digital ATC device 26 with a transponder on the train 18.

On the ground, means for transmitting a notice for causing the train to recognize the position corresponding to the reference position 14 for each of the closed sections (A to D), for example, the ground child 16 (1)
6A to 16D). On the other hand, the train 18 is provided with a means for receiving a notification from the notification means, for example, an upper armature 24. The notification received by the upper armature 24 is input to the digital ATC device 26 with a transponder. Here, the notification indicating the position corresponding to the reference position 14 indicates, for example, the installation position of the ground child 16 with respect to the reference position 14. By making such a notification, the reference position 14 and the ground child 16 can be set in an arbitrary positional relationship.

The train 18 is provided with a speed generator 32 and a digital ATC device 26 with a transponder.
Acquires the speed of the train 18 or the number of rotations (or rotation angle) of the wheels 30 from the speed generator 32.

The digital ATC device 26 with a transponder generates a brake check pattern L indicating a speed limit profile up to the stop position S based on a distance signal indicating the distance from each reference position 14 to the stop position S.
FIG. 2 shows an example of the brake check pattern L. The brake check pattern L determines a stop limit speed according to the distance to the stop position S in order to surely stop the train 18 at the stop position S. The digital ATC device 26 with a transponder acquires the distance and the speed from the current position of the train 18 to the stop position S and monitors the speed of the train 18, and the speed of the train 18 exceeds the limit speed indicated by the brake check pattern L. In this case, the train is controlled so that the speed v of the train 18 is operated within the control region (FIG. 2), for example, by issuing a warning or controlling the motor or the brake.

The distance from the current position of the train 18 to the stop position S (remaining distance y) is determined from the reference position 14 to the stop position S in the digital ATC device 26 with a transponder.
From the distance (first distance x1) to the distance from the reference position 14 to the current position of the train 18 (second distance x2) and the vehicle upper child mounting position (the distance from the head of the train 18 to the vehicle child 24). x2 ') is calculated as the distance obtained by subtracting x2').

The first distance x1 can be obtained from the distance signal received by the terrestrial ATC device 22 via the power receiver 28 as described above. Then, the digital ATC device 26 with a transponder calculates the first distance x
The reference position 14, which is the starting point of No. 1, is recognized based on the notification acquired via the above-described vehicle armature 24. More specifically, the notification includes information indicating the relative positional relationship between the ground child 16 and the reference position 14 (for example, the ground child 16
4 includes a predetermined distance (for example, information indicating that it is 5 meters ahead) in the traveling direction, the digital ATC device with transponder 26 receives the notification from the reference position 14 at the time of receiving the notification (the distance from the reference position 14). The third distance x3) can be obtained and recognized. As described above, the digital ATC device 26 with a transponder can recognize the first distance x1 and the third distance x3.

The second distance x2 can be calculated based on the rotation of the wheel 30. More specifically, the number of rotations (or rotation angle) of the wheel from the time when the notification was received is obtained from the speed generator 32, and this is integrated to calculate the rolling distance of the wheel. The travel distance (fourth distance x4) from the time when the notification is received (that is, the installation position of the ground child 16) to the current position is acquired. Then, the second distance x2 is obtained by adding the third distance x3 and the traveling distance x4 from the time when the notification is received.

As described above, the digital ATC device 26 with the transponder obtains the first distance x1 and the second distance x2, and further obtains the known distance x2 as the distance between the upper armature 24 and the tip of the train 18. ', And based on these, the remaining distance y from the current position of the train 18 to the stop position S can be obtained from the following equation.

[0023]

## EQU1 ## y = x1-x2-x2 '

And a digital A with a transponder
The TC device 26 calculates the remaining distance y and the speed generator 3
The train speed v obtained from Step 2 is compared with the brake check pattern L. If the train speed v is sufficiently lower than the stop limit speed indicated by the brake check pattern L, no particular control is performed. If the train speed is close to or exceeds, for example, an alarm is issued, or the train speed v
Control of each part of the train.

Further, the ground ATC device 22 transmits rail information in a section corresponding to the reference position 14 to the train 18. This information includes, for example, information indicating a speed limit section position with respect to the reference position 14, information indicating a speed limit in the speed limit section, or a gradient (a type of up / down gradient, a magnitude of the gradient) of a specific section. be able to. Based on this information, the digital ATC device 26 with a transponder receives the information via the power receiver 28, and based on this information, for example, a brake reflecting a situation on the ground side (for example, a speed limit event) as shown by a broken line in FIG. The check pattern L1 can be generated.

The on-vehicle digital ATC device 26 with a transponder according to the present embodiment is constructed by integrating the transponder and the on-vehicle digital ATC device in the same housing. This makes it possible to reduce the size and weight of the device.

The present invention is not limited to the above embodiment. In the above embodiment, the reference position 14 and the ground child 16
Although the installation position is different from the installation position, this may be the same position. Further, the receiving means for the first distance and the transmitting / receiving means for acquiring the second distance can be appropriately configured as communication means different from the above-described embodiment.

Further, in the above-described embodiment, the means for acquiring the second distance includes the ground child, the vehicle child, and the transponder, and the position corresponding to the reference position is obtained by these. However, the present invention is not limited to this. For example, a position corresponding to the reference position may be acquired based on a transmission signal from the transmission unit for each predetermined section (that is, a transmission signal from a ground ATC device). For example, by setting the carrier frequency of the transmission signal as a different frequency, the transmission signal can be identified for each corresponding reference position.
In this case, the boundary of the predetermined section can be set as the reference position, and the train can recognize the boundary of the predetermined section as the change point of the transmission signal as the reference position. Further, the transmission / reception means of the transmission signal may be caused to transmit / receive a reference position identification signal for identifying a reference position before transmission / reception of the transmission signal. In this case, in order to make the train recognize the reference position as soon as possible, the transmission period (period) of the reference position identification signal is shortened (for example, shorter than the transmission signal) or the reference position identification signal is transmitted a plurality of times. It is suitable.

[0029]

As described above, according to the present invention,
Since train braking control can be performed without having a database on the train, the system on the train can be configured more simply, and it is not necessary to update the database, which is conventionally troublesome. The effect can be achieved.

[Brief description of the drawings]

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

FIG. 2 is a diagram illustrating an example of a speed limit profile up to a stop position generated in the train traveling control system according to the embodiment of the present invention.

FIG. 3 is a schematic configuration diagram of a conventional ATC system.

[Explanation of symbols]

10 train running control system, 12 rails, 14 reference positions, 16 ground trains, 18 trains, 20 preceding trains, 22 ground ATC devices (transmission means), 24 vehicle upper trains,
26 digital ATC device with transponder (running control means), 28 power receiver (receiving means), 30 wheels,
32 speed generator.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Toshiji Kurihara 1-13-8 Kamikizaki, Urawa-shi, Saitama Japan Signal Co., Ltd. Yono Works F-term (reference) 5H115 PG01 SF06 SF13 SJ02 SL01 SL06 SL07 TB01 TD03 TU08 TZ07 5H161 AA01 BB02 BB06 CC04 CC07 CC13 DD11 EE05

Claims (5)

[Claims] 1. A train running control system for controlling running of a train running on a rail having a plurality of reference positions, wherein a first distance from each reference position to a stop position is transmitted from the ground to the train. Transmitting means, receiving means for receiving the first distance on a car, means for obtaining a second distance from the reference position to the current position of the train on a car, the first and second distances And a travel control means for controlling travel of the train based on the train travel control system. 2. The train traveling control system according to claim 1, further comprising: a ground contact for notifying a position corresponding to the reference position on a vehicle, and wherein the acquisition unit receives a notification from the ground contact. A train travel control system comprising: a vehicle upper arm; and means for integrating a travel distance from a time point when the notification is received. 3. The train traveling control system according to claim 1, wherein the first distance received by the receiving unit and the notification received by the vehicle child are input to the same information processing device. Train running control system characterized by being processed and processed. 4. The train travel control system according to claim 1, wherein the reference position is set for each of a plurality of sections that divide a rail, and further, in a section corresponding to the reference position. A transmission means for transmitting the rail information, and a reception means for receiving the rail information, wherein the travel control means further performs travel control of the train based on the rail information. Control system. 5. A receiving means for receiving, from the ground, a first distance from each reference position to a stop position with respect to a plurality of reference positions set on the rail, and a second distance from the reference position to the current position of the train. An on-vehicle ATC control device, comprising: an acquisition unit that acquires the following information;