JP2003137086A - Control system of platform door for railroad - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control system that has high safety and rapidly releases a door lock when an obstacle is not enough thick to be sensed by a door end sensor in closing a door of a platform and thus a perfectly closing state of the door occurs. SOLUTION: The control system of a platform door comprises the platform door 3 disposed in the platform of a vehicle, the door end sensor 15 for detecting that the obstacle is grappled by the door, and an electromagnetic lock 17 for locking the door after the completion of closing of the door. When the obstacle lying out of a sensing range of the door end sensor is grappled by the door after the completion of closing of the door, the door end sensor is made to sense the obstacle by moving the obstacle, and a microcomputer controller 13 releases the door lock, re-opens the door from the grappled state of the obstacle by the door to a certain distance, and then closes the door again.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway platform door control system for controlling a door installed on a platform of a vehicle such as a subway.

[0002]

2. Description of the Related Art Conventionally, in a railway platform door, for example, a sensor or the like is provided at the front of the door so that a customer or an article may be caught in the door during the door closing operation
When it is detected, the door is reopened and then the closing operation is performed again. And once the door is closed,
The door control system immediately locks the door with an electromagnetic lock or the like and does not restart the door thereafter. In another conventional system, after the door is closed once, for example, after about 0.5 seconds to 2 seconds,
It is a door control system that locks the door with an electromagnetic lock or the like.

[0003]

Conventionally, in a platform door, a door tip detection device such as a pressure-sensitive sensor provided at the tip of the door is used when a user or an article is caught in the door during the door closing operation. When the door is detected, the door is reopened so that the crumpled item can be pulled out.After that, the door is closed again, and once the door is closed, it is immediately locked by, for example, an electromagnetic lock. It is a door control system that locks the door and does not restart the door thereafter. In this system,
When the door is closed, for example, the electromagnetic lock is performed, so that it is possible to prevent the customer from performing unsafe acts such as forcibly opening the door, and to transmit a signal to the train operation management device as a door closing completion signal. Is common. However, in this conventional system, there is a problem that the dead area of the door tip detection device is not taken into consideration. Therefore, in a normal case, in a case where the door tip detection device is provided at both ends of the door, for example, 5 mm. When an item with a certain thickness is caught, it may not be detected.
Therefore, in conventional systems, for example, the tip of an umbrella,
There is a problem that when a blind person's cane or the like is caught between the doors, it may not be detected, which causes an unsafe situation. Further, in order to solve the above-mentioned problems, for example, 0.5 seconds to 2 after the door is closed.
After a certain period of time of about a second has elapsed, a method is adopted in which the door is locked by an electromagnetic lock, and by moving an obstacle that is sandwiched between the doors during that time, the door tip sensor senses it and restarts the door. Although there is also a conventional example of a method of removing an object, this conventional example has a problem that the train departure time is extended by that time because the electromagnetic lock operates every time after a certain time elapses after the door is closed. It was

An object of the present invention is to promptly remove an obstacle when the platform door is closed and the obstacle is not thick enough to be detected by the door tip sensor and the door is completely closed. It is to provide a railway platform door control system that is easy and easy to remove and has excellent safety.

[0005]

Means for Solving the Problems In order to solve the above problems, a platform door installed on a platform of a vehicle, a door tip sensor for detecting that an obstacle has clogged the door, and a door after completion of closing the door, In a railway platform door control system having a door locking mechanism, after the door is closed, if the door tip sensor detects an obstacle outside the detection range, the door lock is unlocked,
Reopen the door for a small distance and after reopening, close the door again. Here, the re-opening distance of the door is set to be a certain distance that can be released from a state where an obstacle outside the detection range of the door tip sensor is caught in the door.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an overall view of a railway platform door control system according to an embodiment of the present invention. In FIG. 1, 1 is a platform, 2 is a foam fence installed on the platform, 3 and 4 are platform doors in the form of doors that move and open in both directions, 5 is a platform door that opens and closes in one direction, and 6 to 8 are platform doors. Individual control panels installed in 3 to 5, 9 is a range of the foam fence 2 in which the platform doors 3 to 5 are movable, 20 is a vehicle (leading vehicle), 21 and 22 are doors for passengers to get in and out of the vehicle 20, and 23 is a vehicle. 20 crew doors,
30 is a station office, 31 is an integrated control device 31 installed in the station office 30, 32 is a station room display panel, and 1000 is the width of the platform door. The first platform door system for railways is Platform 1
When the vehicle (leading vehicle) 20 enters the and stops at a fixed position,
The crew issues a door open command. The integrated control device 31 installed in the station office 30 receives this door open command signal. After receiving the signal, the integrated control device 31 data-transfers the door open command signal to the individual control boards 6 to 8 installed on the platform doors 3 to 5. As a result, the platform doors 3 to 5 are opened. When the passengers have finished getting on and off, the crew members issue a door closing command. After the command is received by the integrated control device 31, the integrated control device 31 data-transmits a door close command signal to the individual control panels 6 to 8. Thereby, the platform doors 3-5 start to close. Door 3
When the items # 5 to # 5 are completely closed, the door is locked by an electromagnetic lock (not shown), and a door closing completion signal is transmitted from the individual control panels 6 to 8 to the general control device 31. When the door closing completion signals of all the doors 3 to 5 are received, the integrated control device 31 transmits the door closing completion signals to the crew members. Upon receipt of the signal, the crew starts the vehicle.

FIG. 2 is a block diagram of the individual control panel of this embodiment. The individual control boards 6 to 8 have the same configuration, and the individual control board 6 will be described. In FIG. 2, a motor 10 for opening and closing the platform door 3 is supplied with AC power from a switch 11 connected to a 100V AC power source via an inverter 12. Now, when the door closing command is transmitted from the general control device 31 to the individual control panel 6 of the platform door 3, the microcomputer control device 13 receives the signal. The microcomputer control device 13 is a gate drive control circuit 1
4, the gate circuit of the inverter 12 is controlled to drive the motor 10, and the operation of closing the door 3 is started. If a person or an obstacle is caught in the middle of the closing operation of the door 3, the door end switch 15 operates, and the signal is transmitted to the microcomputer control device 13 through the door end switch signal line 16 and thereby the motor 10 Control to rotate in the opposite direction. After that, the door closing operation is performed again, and when there is no obstacle between the doors 3, the door 3 is fully closed, and the operation command is transmitted from the microcomputer control device 13 to the electromagnetic lock 17 by the full closing signal. After the door is fully closed, the door 3 is locked by the electromagnetic lock 17. Here, 18 is a chime that reports the open / closed state of the door 3. 19 is a microcomputer control device 13
Power supply device.

FIG. 3 is a block diagram of the platform door of this embodiment. The platform doors 3 to 5 have the same configuration, and the platform door 3 will be described. The platform door 3 includes a door portion 301 and a door pocket portion 302, and the door portion 301 is supported by a support roller 303.
The door 10, the motor 10, the individual control panel 6, and the electromagnetic lock 17 are built in the door pocket 302. Here, 305 is a hanger and 306 is an emergency unlock button. Due to the rotation of the motor 10, the door portion 301 moves along the guide rail 304 and opens and closes. Further, a door end switch 15 is provided at the tip of the door portion 301 to detect when a person or an obstacle is caught. Further, when the door portion 301 is fully closed, the electromagnetic lock 17 is activated, and the door portion 301 is held so as not to be opened, thereby improving safety.

FIG. 4 shows a block diagram of the door end switch. The door end switch 15 supports the cable switch 1501 on the switch holding rail 1502, and the exterior cover 1503.
The outer cover 1503 is attached to the attachment channel 1504 while being surrounded entirely by. The cable switch 1501 operates, for example, when a person or an obstacle is caught between the door portions 301 and receives a pressure in the front direction or the lateral direction, and detects it. As an obstacle, for example, the tip of an umbrella,
If the door is not thick enough to be detected by the door sensor 15 such as a blind person's cane, you can pull it by moving it.
Works the same.

FIG. 5 shows a layout of the electromagnetic lock. As shown in the figure, the electromagnetic lock 17 is attached to the door pocket 302, and the lock pin 1701 at the center of the electromagnetic lock is moved up and down by an electromagnetic force. Normally, the lock pin 1701 is in a pulled-up state, and when the door portion 301 is completely closed, a signal from the individual control panel 3 causes a lock pin 1701.
Is in a lowered state. At the position where the door portion 301 is in the fully closed state, there is a lock hole 1702 at the position of the door directly below the lock pin 1701.
The lock pin 1701 enters into 02. The door portion 301 is locked by the electromagnetic lock 17 by the mechanism.

FIG. 6 shows a flowchart of a conventional operation of closing a platform door for a railway. As shown in the figure, a door closing command is received from the integrated control device 31, and the door closing operation is started. When a person or an obstacle is caught between the doors during the closing operation and the door tip sensor 15 detects the door, the door starts the reopening operation at that time. When the door reopening operation is completed, the door starts to close again, and when there is no detection of the door end sensor 15 such as when there is no person or obstacle, the door is completely closed and the electromagnetic lock 17 is activated, whereby the door is closed. Is mechanically locked to enhance safety. At the same time, the door closing completion signal is transmitted to the integrated control device 31.

FIG. 7 shows a flow chart of another operation of closing a railway platform door according to a conventional example. As shown in the figure, a door closing command is received from the integrated control device 31, and the door closing operation is started. When a person or an obstacle is caught between the doors during the closing operation and the door tip sensor 15 detects the door, the door starts the reopening operation at that time. When the reopening operation of the door is completed, the door starts to close again,
If the door sensor 15 does not detect the door, the door is completely closed. For example, when a cane or the like is sandwiched between the doors and the thickness (diameter) is thin and is outside the detection range of the door end sensor 15, by shaking it, the door end sensor 1
5 can be set to the sensing state, so that, for example, 0.
By moving the obstacle that has been crushed within a fixed time of about 5 seconds to 2 seconds, the door end sensor 15 becomes a sensing state, and the obstacle can be removed by reopening the door again. Door edge sensor 1 after a certain period of time
In the absence of a sense of 5, the electromagnetic lock 17 is activated, which mechanically locks the door, increasing safety. At the same time, the door closing completion signal is transmitted to the integrated control device 31.

FIG. 8 shows a state where the pochette string is sandwiched by the door. The figure shows a state in which when a passenger with a pochette boarded, the string of the pochette was sandwiched between the train door and the platform door, and the pochette body was left behind on the platform side of the platform door. In the situation of FIG. 8, by pulling the pochette string and hitting the pochette laterally to the door tip sensor 15 provided at the tip of the platform door, a situation in which the door tip sensor 15 senses with high probability is created. , The platform doors will be reopened and the Pochette's insertion into the platform doors will be released.

FIG. 9 shows a flow chart of the railway platform door closing operation by the microcomputer controller of this embodiment. As shown in the figure, a door closing command is received from the integrated control device 31, and the door closing operation is started. If a person or an obstacle is caught between the doors during the closing operation and the door tip sensor 15 detects the door, the door starts the reopening operation at that time. When the reopening operation of the door is completed, the door starts to close again, and there is no person or obstacle in the door sensor 15
If there is no detection, the door is closed and the electromagnetic lock 1
The closing action of 7 causes the door to be mechanically locked, increasing safety. At the same time, the door closing completion signal is transmitted to the integrated control device 31. When the door is closed, if the door is mechanically locked while the door tip sensor 15 does not detect it because, for example, a pochette string or the like is caught in the door, it is noticed that the pochette string has fallen. Pull the string of the pochette and the door tip sensor 15
There is a case that is sensed by. Next, the door sensor 15
Is detected, the electromagnetic lock 17 is unlocked, a door open signal is transmitted to the integrated control device 31, and the operation of restarting the door for a short fixed distance is started. The door is, for example, 10 cm
When opened by a certain distance (a distance that no one can pass) of ~ 20cm, the string of the crumpled pochette and the pochette left on the home side are quickly and easily released from the state of being caught in the platform door. It After reopening, the door starts reclosing operation, and upon completion of closing the door, the electromagnetic lock 17 is locked, and the door is mechanically locked.
The door closing completion signal is transmitted to the integrated control device 31.

[0015]

As described above, according to the present invention,
When the door of the railway platform equipped with the door tip sensor is closed, for example, a pochette string is caught between the doors, that is, the thickness of the obstacle is not enough to be detected by the door tip sensor, and the door is completely closed. If a situation occurs, the door will be locked, but a case where the door tip sensor senses by moving the crumpled obstacle etc. will be generated, the door lock will be opened, and the door will be closed at a fixed distance ( By reopening an obstacle outside the detection range of the door sensor from the state where the obstacle is caught in the door (for example, 10 cm to 20 cm), the obstacle can be swiftly removed as compared with the conventional example. It can be removed easily and easily, and delay of train departure time can be suppressed as much as possible. In addition, the reopening distance of the door is set to a small fixed distance (for example, 10c
By setting the distance to m ~ 20 cm (distance that people cannot pass), the pochette etc. can be released from the crowded state, but passengers can not pass through it, so when the door is reopened The passenger can be refused, and the system can have an excellent safety aspect.

[Brief description of drawings]

FIG. 1 is an overall view of a railway platform door control system according to an embodiment of the present invention.

FIG. 2 is a block diagram of an individual control panel of the present invention

FIG. 3 is a mechanism diagram of the platform door of the present invention.

[Fig.4] Structural drawing of the door switch

[Fig. 5] Layout of electromagnetic lock

FIG. 6 is a flowchart according to a conventional example.

FIG. 7 is a flowchart according to another conventional example.

[Fig. 8] A state in which a pochette string is sandwiched between doors.

FIG. 9 is a flow chart of the microcomputer controller of the present invention.

[Explanation of symbols]

1 ... Platform, 2 ... Platform fence, 3,
4 ... Platform door, 5 ... Platform door, 6-8 ... Individual control panel, 10 ... Motor, 12 ... Inverter, 13 ... Microcomputer control device, 14 ... Gate drive control circuit, 15 ... Door end switch, 17 ... Electromagnetic lock, 20 ...
Vehicle (leading vehicle), 30 ... Station office, 31 ... General control device,
32 ... Station office display panel, 31 ... General control device

Continued front page    (72) Inventor Takayuki Kurihara             2-8-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Tokyo             Metropolitan Transportation Bureau

Claims (2)

[Claims] 1. A control of a platform door for a railway having a platform door installed on a platform of a vehicle, a door tip sensor for detecting that an obstacle has clogged the door, and a mechanism for locking the door after the door is closed. In the system, after the door is closed, when the door tip sensor detects an obstacle outside the detection range, the door lock is unlocked and the door is reopened at a narrow fixed distance.
A control system for railway platform doors characterized by closing the door again after reopening. 2. The door reopening distance according to claim 1, wherein the reopening distance of the door is a fixed distance that allows an obstacle outside the detection range of the door tip sensor to be released from the state of being caught in the door. Railway platform door control system.