JP2017202733A - Platform door control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect stoppage of a train at low costs.SOLUTION: A platform door control device 40 includes: detection parts 41 which detect presence/absence of an object in a non-contact manner; and a control part 42 which determines whether or not a train stops at a predetermined position on the basis of detection results of the detection parts 41 and enables a movable member 20 to move when determining that the train stops.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a home door control device that controls a home door.

  In recent years, platform screen doors have been introduced on station platforms in order to prevent accidents and improve safety. The home door opens and closes in response to the operation of the staff and the vehicle door as the train arrives. As an example of the procedure, when the train stops at the stop position, a signal is transmitted from the fixed position stop ground element (TASC) of the automatic train operation device (ATO), and the vehicle side receives it via the vehicle upper element. After that, when it is confirmed that the vehicle has stopped at the stop position, the platform door indicator light on the driver's seat lights up. When the door is opened, an open command signal is transmitted from the vehicle side to the home door side via the ground element from the vehicle side, opens first from the home door, and then a reply signal is transmitted from the home door side to the ground element. When the vehicle door starts to open or closes, the vehicle sends a close command signal to the home door via the vehicle upper and ground. Then, after the door on the vehicle side starts to close first, the home door starts to close thereafter (for example, see Non-Patent Document 1).

  There are various types and structures of home doors. For example, Patent Document 1 includes a movable fence that opens and closes by an elevating operation and a fixed fence that supports and moves the movable fence, and when the train enters the station platform, decelerates and stops, the movable fence rises. Elevating platform doors that can reduce the delay time caused by waiting time and maintain high user safety by appropriately controlling the timing of operation, train entry / stop and vehicle door opening operation Is known (see, for example, Patent Document 1).

JP 2014-162241 A

"Home Door", [online], May 2015, [Search January 25, 2016], Internet <URL: https: //en.wikipedia.org/wiki/%E3%83%9B%E3%83 % BC% E3% 83% A0% E3% 83% 89% E3% 82% A2>

  However, if an apparatus such as ATO is installed to detect that the train has stopped and notify the platform door, there is a problem that costs increase.

  In addition, the platform door disclosed in Patent Document 1 is provided with a pair of sensors facing a position a little away from the platform, estimating the speed of the train, the train is about to stop, and the train starts to move. However, it did not detect the stop position of the train.

  The objective of this invention made | formed in view of this situation is providing the platform door control apparatus which can detect the stop of a train at low cost.

  In order to solve the above-described problems, a home door control device according to the present invention is a home door control device that controls the operation of a home door including a movable member and a support member that supports the movable member. A plurality of detection units for detecting presence / absence, and whether or not the train is stopped at a predetermined position based on detection results of the plurality of detection units, and determining that the train is stopped, the movable member is And a movable control unit.

  Furthermore, in the platform door control device according to the present invention, the detection unit includes a first range from a head to a rear end of a predetermined stop position of the train, and a second range from the head of the stop position to a predetermined position ahead. A range and an object in a third range from the tail of the stop position to a predetermined position behind the stop position are arranged at positions where the objects can be detected.

  Furthermore, in the platform door control device according to the present invention, the detection unit is arranged on at least one of a line side surface of the support member and a line side surface of the platform.

  Furthermore, in the platform door control device according to the present invention, the detection unit arranged at a position where the objects in the second range and the third range can be detected is located at a position where the objects in the first range can be detected. It is characterized by being arranged more densely with respect to the traveling direction of the train than the arranged detection units.

  Furthermore, in the platform door control device according to the present invention, the control unit is configured such that the detection unit disposed at a position where the objects in the second range and the third range can be detected does not detect the object, and the first unit It is determined that the train is stopped when the detection unit arranged at a position capable of detecting the object in the range satisfies the condition that the object is detected and the condition is maintained for a predetermined time or longer. And

  Furthermore, in the platform door control apparatus according to the present invention, the detection unit is a reflective photoelectric sensor or an ultrasonic sensor.

  According to the present invention, it is possible to detect a stop of a train at a low cost.

It is a figure which shows the structural example containing the platform door control apparatus which concerns on one Embodiment of this invention. It is a figure which shows the movable example of the movable member of a home door. It is a figure which shows an example of a home door. It is a figure which shows an example of a home door. It is a figure which shows the relationship between the detection part of the platform door control apparatus which concerns on one Embodiment of this invention, and the stop position of a train. It is a flowchart which shows operation | movement of the platform door control apparatus which concerns on one Embodiment of this invention. It is a figure which shows the relationship between the detection part of the platform door control apparatus which concerns on one Embodiment of this invention, and the stop position of a train.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  In FIG. 1, the structural example containing the platform door control apparatus which concerns on one Embodiment of this invention is shown. The home door 1 shown in FIG. 1 includes a support member 10, a movable control unit 11, a movable member 20, and a connection member 30. The platform door 1 is installed at the end of the platform 100 of the station on the track side for the purpose of preventing passengers from falling on the track or coming into contact with a running train.

  The support member 10 has a mechanism for supporting the movable member 20 and storing the movable member 20 that is movable when the train is stopped.

  The movable control unit 11 controls whether or not the movable member 20 is movable based on an instruction from the control unit 41.

  The movable member 20 is arranged so as to close between the support members 10 by moving between the support members 10 or to open between the support members 10. FIG. 1 shows a state in which the movable member 20 is disposed so as to close the space between the support members 10. FIG. 2A shows a state in which the movable member 20 is moving left and right, and FIG. 2B shows a state in which the movable member 20 is disposed so as to open the space between the support members 10.

  The connection member 30 is disposed so as to close between the support members 10 and is fixed between the support members 10 without moving.

  The movable member 20 is not limited to the one that moves left and right as shown in FIGS. 1 and 2, and is composed of, for example, a plurality of metal bars as shown in FIG. 3. It may be movable. Moreover, the connection member 30 may also be configured by a plurality of metal bars fixed as shown in FIG. Therefore, in this specification, “closing between the support members 10” includes a case where a part of the space between the support members 10 is closed, and “opening between the support members 10” The case where a part of the space between the support members 10 is opened is also included.

  In addition, the platform door 1 does not necessarily need to be provided with the connection member 30, and as shown in FIG. 4, for example, the width of the central support member 10 may be increased without providing the connection member 30.

  The home door control device 40 includes a control unit 41 and a detection unit 42, and controls the operation of the home door 1. The control unit 41 is disposed in the vicinity of the platform 100. For example, it is stored in a housing provided on the platform 100. Alternatively, it may be stored inside one support member 10.

  The detection unit 42 detects the presence or absence of an object in a non-contact manner, and the control unit 41 determines whether the train is stopped at a predetermined position (a position facing the home door 1) based on the detection results of the plurality of detection units 42. Determine whether or not.

  If it is only determined whether or not the train has stopped, the detection unit 42 is placed at a position where an object within the range of the stop position of the train (from the start to the end of the stop position determined by the train) can be detected. It may be arranged. Furthermore, in order to determine train overrun and short stop, the detection unit 42 may be arranged at a position where an object outside the range of the train stop position can be detected. Out of the range of the stop position of the train is, for example, within 25 cm in the traveling direction from the head position of the determined stop position of the train and within 25 cm in the backward direction from the rear position of the determined stop position of the train.

  Specifically, for example, a plurality of detection units 42 are arranged on at least one of the line side surface of the support member 10 and the line side surface of the platform. As shown in FIG. 1, the detection units 42 may be arranged in one row on each support member 10, or only one detection unit 42 may be arranged on each support member 10, or on each support member 10. May be arranged in a plurality of rows. Each detection unit 42 detects the presence / absence of an object at the facing position, generates a 1-bit detection signal indicating the presence / absence of the object, and outputs the detection signal to the control unit 41.

  The detection unit 42 may be a transmission type sensor or a reflection type sensor. However, in the case of a transmission type sensor, a receiver is provided on the opposite side of the transmitter, and furthermore, the position of the both needs to be adjusted with high accuracy. To increase. Therefore, it is preferable that the detection unit 42 be a reflective sensor.

  Moreover, since a laser sensor is expensive, it is preferable to use a photoelectric sensor or an ultrasonic sensor. However, the photoelectric sensor reacts to illumination or sunlight, and there is a risk of erroneous detection that the object is present even if the object is not present. In addition, the reflectance of the photoelectric sensor differs depending on the color, and there is a risk of erroneous detection in a colorful vehicle on which an advertisement is drawn. On the other hand, ultrasonic sensors do not have such disadvantages. In addition, although the ultrasonic sensor is easily affected by strong winds, there is no influence of strong winds when detecting the stop of a train, so the possibility of erroneous detection is considered to be extremely low.

  Next, control by the platform door control device 40 will be described.

  As an example, as shown in FIG. 5, the train is a two-car train, doors for getting on and off are arranged only at two front and rear positions of the vehicle, and both ends of the seven support members 10-1 to 10-7 (the train has stopped). At least one of the supporting members 10-1 and 10-7 and the remaining supporting members 10-2 to 10-6 (10-2 and 10-6 in FIG. 5) installed at the leading and trailing positions. It is assumed that the detection unit 42 is disposed in ().

  In addition, A in the figure indicates a first range from the beginning to the tail of the determined stop position of the train. B in the figure indicates a second range from the beginning of the determined stop position of the train to the predetermined position ahead. C in the figure indicates a third range from the rear end of the determined stop position of the train to a predetermined position behind it.

  FIG. 6 is a flowchart showing the operation of the control unit 41. Initially, the movable member 20 is disposed so as to close between the support members 10, and the control unit 41 does not move the movable member 20.

  The detection units (detection units 42 arranged on the support members 10-1 and 10-7) arranged at positions where the objects in the second range B and the third range C can be detected do not detect the objects, It is determined whether or not the condition that the detection unit (the detection unit 42 arranged on the support members 10-2 and 10-6) arranged at a position where the object in the range A of 1 can detect the object is satisfied is satisfied. Determination is made (step S101). When this condition is maintained for a predetermined time (for example, several seconds) or longer (step S102—Yes), it is determined that the train has stopped at the determined stop position. The control unit 41 determines whether or not the train is always stopped at steps S101 and S102.

  When the control unit 41 determines that the train has stopped at the determined stop position (step S102—Yes), the movable member 20 is moved, and the space between the support members 10 is opened so that the train can get on and off (step S103). . Subsequently, when the train opens and closes the door and passengers get on and off, the movable control unit 11 receives a closing instruction (step S104). The closing instruction is input from the driver or the conductor, or from a detection unit (not shown) that detects that the train door is closed. Then, the movable control unit 11 moves the movable member 20 based on the closing instruction, and closes the space between the support members 10.

  Here, when Step S101 is Yes and Step S102 is No, the control unit 41 determines that the train has passed, that is, determines that the train has not stopped. Further, when the detection unit 42 arranged on the support members 10-1, 10-2, and 10-6 detects an object, and the detection unit 42 arranged on the support member 10-7 does not detect an object ( In step S101-No), the control unit 41 determines that the train has overrun, and does not proceed to step S103. Further, when the detection unit 42 arranged on the support member 10-1 does not detect the object and the detection unit 42 arranged on the support members 10-2, 10-6, and 10-7 detects the object ( In step S101-No), the control unit 41 determines that the train has short-stopped and does not proceed to step S103.

  Further, as shown in FIG. 7, the detection unit 42 (the detection unit arranged in the support members 10-1 and 10-7) arranged at a position where the objects in the second range B and the third range C can be detected. 42) with respect to the traveling direction of the train, rather than the detection unit 42 (detection unit 42 arranged on the support members 10-2 and 10-6) arranged at a position where an object in the first range A can be detected. And densely arranged. For example, in the support members 10-1 and 10-7, the detection units 42 are arranged at intervals of d = 25 cm with respect to the traveling direction of the train. In this case, the control unit 41 can more accurately determine the stop position of the train.

  As described above, the home door control device 40 includes a plurality of detection units 42 that detect the presence or absence of an object without contact. Therefore, the platform door control device 40 can determine the stop of the train at a low cost without providing a special device such as ATO.

  Furthermore, the detection unit 42 not only detects the first range of objects from the beginning to the tail of the determined stop position of the train, but also the second range from the start of the stop position to the predetermined position ahead. By arranging the objects in the third range from the tail of the stop position to the predetermined position behind, it is possible to determine the presence or absence of an overrun and the presence or absence of a short stop.

  Although the above embodiment has been described as a representative example, it will be apparent to those skilled in the art that many changes and substitutions can be made within the spirit and scope of the invention. Therefore, the present invention should not be construed as being limited by the above-described embodiments, and various modifications and changes can be made without departing from the scope of the claims. For example, it is possible to combine a plurality of constituent blocks described in the configuration diagram of the embodiment into one, or to divide one constituent block.

DESCRIPTION OF SYMBOLS 1 Home door 10 Support member 11 Movable control part 20 Movable member 30 Connection member 40 Home door control apparatus 41 Control part 42 Detection part 100 Platform

Claims (6)

A home door control device that controls the operation of a home door including a movable member and a support member that supports the movable member,
A plurality of detection units for detecting the presence or absence of an object without contact;
It is determined whether or not the train is stopped at a predetermined position based on the detection results of the plurality of detection units, and when it is determined that the train is stopped, a control unit that moves the movable member;
A home door control device comprising:   The detection unit includes a first range from the start to the tail of a predetermined stop position of the train, a second range from the start of the stop position to a predetermined position, and a predetermined range behind the tail of the stop position. The home door control device according to claim 1, wherein the home door control device is arranged at a position where an object in a third range up to the position can be detected.   The home door control device according to claim 2, wherein the detection unit is disposed on at least one of a line side surface of the support member and a line side surface of the platform.   The detection unit arranged at a position where the objects in the second range and the third range can be detected is more travel direction of the train than the detection unit arranged at a position where the objects in the first range can be detected. The home door control device according to claim 2, wherein the home door control device is arranged densely with respect to the home door control device.   The control unit is arranged at a position where the detection unit arranged at a position where the objects in the second range and the third range can be detected does not detect the object but can detect an object within the first range. 5. The train according to claim 2, wherein the train is determined to be stopped when the condition that the detection unit detects an object is satisfied and the condition is maintained for a predetermined time or more. The home door control device according to item.   The home door control device according to claim 1, wherein the detection unit is a reflective photoelectric sensor or an ultrasonic sensor.

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