Platform door device, method, program, and platform door control device

Abstract

To provide a method by which a closing control of a door is made to be possible using a proper closed position while suppressing an increase of a processing burden of a platform door device.SOLUTION: A platform door device in this invention comprises a door, a drive mechanism 13, a storage unit 36 for storing target position information, a drive control unit 33 which drives the door in a closing direction to reach a target position indicated by the stored target position information and after the door reaches the target position, makes the drive mechanism 13 execute a pressing action to press a door end to an opposite object until a time when the door is driven in an open direction, an acquisition unit 32 for acquiring pressing position information of the door during the pressing action, and a renewal unit 34 for renewing the target position information using the acquired the pressing position information. The drive control unit 33 drives the door in a closing direction to reach the target position indicated by the renewed target position information.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a platform door device, a method, a program, and a platform door control device. [Background technology]

[0002] In recent years, the installation of platform door devices has been promoted to further improve safety on train platforms. Platform door devices remain closed until the train enters the platform, restricting passenger movement from the platform side to the track side. When the train stops at the designated position on the platform, the platform door device opens, allowing passengers to board and disembark the train.

[0003] When the platform door system drives the doors to close, it detects that the doors have reached a predetermined distance, indicating that the doors have reached the fully closed position and that the platform door has closed. However, because the platform expands or contracts, particularly in the longitudinal direction, due to changes in temperature, the opening width of the platform door system's platform door also changes depending on the expansion or contraction of the platform.

[0004] Here, if the opening width of the platform door system's platform door opening widens, a gap corresponding to the widened opening width will appear between the doors even if the door movement reaches a predetermined amount. This gap may cause discomfort or anxiety to passengers. Furthermore, if the opening width of the platform door opening narrows, the doors may fully close before the door movement reaches the predetermined amount, causing the door edge to collide with an opposing object (a door stop or the other door of a double-swing system), resulting in an abnormal noise. This abnormal noise may also cause discomfort or anxiety to passengers, and the collision may also cause the platform door system to malfunction or deteriorate. Therefore, there is a need for technology that adjusts the door movement amount required to determine whether the doors have reached the fully closed position in accordance with changes in the opening width of the platform door system's platform door opening due to platform expansion or contraction.

[0005] As such a technology, a platform door device is known that drives the doors to close at predetermined time intervals, and when the doors stop in the fully closed position, the position of the doors is set as the fully closed position and the set value for the fully closed position is periodically updated (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2020-11644 Summary of the Invention [Problem to be solved by the invention]

[0007] The inventors have come to the following realization regarding platform door devices. The platform door system described in Patent Document 1 requires door closing control at predetermined time intervals to update the set value for the fully closed position, in addition to the normal door opening and closing control for passengers boarding and disembarking. Therefore, the processing load of the platform door system increases by the amount of door closing control required for the update.

[0008] In view of the above problems, the present invention aims to provide a technology that enables doors to be controlled to close using an appropriate target position while suppressing an increase in the processing burden on platform door devices. [Means for solving the problem]

[0009] In order to solve the above problem, a platform door device of one embodiment of the present invention comprises a door that opens and closes a platform entrance / exit, a drive mechanism that drives the door to open and close the platform entrance, a memory unit that stores target position information that indicates a target position at which the platform entrance is to be fully closed, and a drive control unit that controls the drive mechanism, the drive control unit driving the door in the closing direction to reach the target position indicated by the stored target position information, and causing the drive mechanism to perform a pushing operation to press the edge of the door against an opposing object after the door reaches the target position and until the door is next driven in the opening direction, the drive control unit; an acquisition unit that acquires pushing position information that indicates the position of the door when the pushing operation is being performed, and an update unit that uses the acquired pushing position information to update the stored target position information, and the drive control unit drives the door in the closing direction to reach the target position indicated by the updated target position information.

[0010] A method according to one embodiment of the present invention is a method for controlling a platform door device that includes a door for opening and closing a platform entrance and exit, and a drive mechanism that drives the door to open and close the platform entrance, the method comprising the steps of: storing target position information that indicates a target position at which the platform entrance is to be fully closed; driving the door in the closing direction so that it reaches the target position indicated by the stored target position information; causing the drive mechanism to perform a pushing operation that presses the edge of the door against an opposing object after the door has reached the target position and before the door is next driven in the opening direction; acquiring pushing position information that indicates the position of the door when the pushing operation is being performed; and updating the stored target position information using the acquired pushing position information, wherein the driving step drives the door in the closing direction so that it reaches the target position indicated by the updated target position information.

[0011] A platform door control program according to one embodiment of the present invention is a platform door control program for controlling a platform door device that includes doors that open and close platform entrances and exits, and a drive mechanism that drives the doors to open and close the platform entrances. The platform door control program causes a computer to execute the following steps: storing target position information that indicates a target position at which the platform entrances are to be fully closed; driving the doors in the closing direction so that they reach the target position indicated by the stored target position information; causing the drive mechanism to perform a pushing operation that presses the edge of the door against an opposing object after the door reaches the target position and until the door is next driven in the opening direction; acquiring pushing position information that indicates the position of the door when the pushing operation is being performed; and updating the stored target position information using the acquired pushing position information. The driving step drives the doors in the closing direction so that they reach the target position indicated by the updated target position information.

[0012] A platform door control device according to one embodiment of the present invention is a platform door control device that controls a platform door device that includes doors that open and close platform entrances and exits, and a drive mechanism that drives the doors to open and close the platform entrances, and includes: a memory unit that stores target position information that indicates a target position at which the platform entrances and exits are to be fully closed; a drive control unit that controls the drive mechanism, and drives the doors in the closing direction to reach the target position indicated by the stored target position information, and after the doors reach the target position, causes the drive mechanism to perform a pushing operation to press the edge of the doors against an opposing object until the doors are next driven in the opening direction; an acquisition unit that acquires pushing position information that indicates the position of the doors when the pushing operation is being performed; and an update unit that uses the acquired pushing position information to update the stored target position information, and the drive control unit drives the doors to close so that they reach the target position indicated by the updated target position information.

[0013] Any combination of the above, or mutual substitution of the components or expressions of the present invention among methods, devices, programs, temporary or non-temporary storage media on which programs are recorded, systems, etc., are also valid aspects of the present invention. [Effects of the Invention]

[0014] According to the present invention, it is possible to control the closing of doors using an appropriate target position while suppressing an increase in the processing burden on the platform door device. [Brief explanation of the drawings]

[0015] [Figure 1] This is a plan view of a station where a platform door device is installed, viewed from above. [Figure 2] FIG. 1 is a block diagram illustrating a platform screen door system. [Figure 3] Figure 3(a) is a front view of the platform door device of the first embodiment when the doors are in the fully closed position, and Figure 3(b) is a front view of the platform door device of the first embodiment when the doors are in the fully open position. [Figure 4] FIG. 2 is a functional block diagram of the integrated control panel and platform door device of the first embodiment. [Figure 5] 10 is a graph showing the travel speed of the door versus time during the closing operation of the door. [Figure 6] 10 is a flowchart showing the processing of the platform door control unit of the first embodiment. [Figure 7] A functional block diagram of the general control panel and platform door device of the second embodiment. [Figure 8] 10 is a flowchart showing the processing of the platform door control unit of the second embodiment. [Figure 9] 10A and 10B are diagrams illustrating an example of the amount of positional deviation between the stop position of the pair of doors and the target position when each of the doors stops during the pressing operation. DETAILED DESCRIPTION OF THE INVENTION

[0016] In the following embodiments and modifications, the same or equivalent components and members are denoted by the same reference numerals, and redundant explanations are omitted where appropriate. The dimensions of the members in each drawing are enlarged or reduced as appropriate for ease of understanding. Some members that are not important for explaining the embodiments are omitted from the drawings.

[0017] First embodiment FIG. 1 is a plan view of station 1, as viewed from above, in which platform door devices 100 are installed. As shown in FIG. 1, station 1 includes track 2 on which trains run and platforms 3 where train passengers board and disembark. Platform 3 is divided into multiple sections along the direction in which track 2 extends. Expansion joints 4 are provided between the multiple divided platforms 3. Expansion joints 4 are installed in gaps provided in the connecting parts of platforms 3. Platform door devices 100 are installed along the edge of platform 3 on the track 2 side.

[0018] 2 is a block diagram that schematically illustrates the platform screen door system 5. The platform screen door system 5 includes a general control panel 50 and a plurality of platform door devices 100. The platform door devices 100 include a platform door control unit 30.

[0019] A plurality of platform door devices 100 are provided on each of the up and down tracks of platform 3 of station 1. When a vehicle 61 stops at a predetermined position on platform 3, the plurality of platform door devices 100 are respectively arranged at boarding and alighting entrances E (see FIG. 3 ) provided at positions corresponding to each vehicle door of this vehicle 61.

[0020] One general control panel 50 is provided on each platform and is connected to each platform door control unit 30 of the multiple platform door devices 100. The opening and closing of the doors 11 of the platform door devices 100 is controlled by the general control panel 50 via the platform door control unit 30. The opening of the doors 11 together with the vehicle doors allows passengers to board and disembark from the vehicle 61. The closing of either the vehicle door or the doors 11 restricts passengers from boarding and disembarking.

[0021] The general control panel 50 and each platform door control unit 30 can communicate with each other. For example, the general control panel 50 transmits an open command signal or a close command signal to each platform door control unit 30 to open or close a pair of doors 11. When the platform door control unit 30 opens the corresponding door 11 in response to an open command signal, it transmits a full open signal to the general control panel 50. When the platform door control unit 30 closes the corresponding door 11 in response to a close command signal, it transmits a full close signal to the general control panel 50. Each platform door control unit 30 can transmit status information, etc., described below, to the general control panel 50.

[0022] The general control panel 50 and the vehicle 61 can communicate with each other via an automobile information transmission device (ATO) 63 and a ground coil 62. The vehicle 61 can transmit to the general control panel 50 an open request signal to open the doors 11 of all the platform door devices 100 and a close request signal to close the doors 11 of all the platform door devices 100. When the general control panel 50 receives a full open signal or a full closed signal from all the platform door control units 30, it can transmit a full open confirmation signal or a full closed confirmation signal to the vehicle 61. Note that the automobile information transmission device 63 and the ground coil 62 may not be provided at some stations 1.

[0023] The operation of the platform screen door system 5 will now be described. When the vehicle 61 reaches a predetermined position on the platform 3 and stops, the ground coil 62 and the vehicle information transmission device 63 transmit a stop signal to the general control panel 50, indicating that the vehicle 61 has stopped. This causes the general control panel 50 to detect that the vehicle 61 has stopped. The driver of the vehicle 61 then transmits an open request signal to the general control panel 50 via the ground coil 62 and the vehicle information transmission device 63. Upon receiving this open request signal, the general control panel 50 supplies an open command signal to each platform door control unit 30. In response to this open command signal, each platform door control unit 30 opens the corresponding door 11. In response to receiving a fully open position signal (described below) from the fully open position sensor 41a, the platform door control unit 30 transmits a fully open signal to the general control panel 50. Upon receiving fully open signals from all platform door control units 30, the general control panel 50 transmits a fully open confirmation signal to the vehicle 61 via the ground coil 63 and the ground coil 62. When the driver of vehicle 61 receives this full-open confirmation signal, he opens the vehicle door.

[0024] When passengers have boarded and disembarked and vehicle 61 departs from platform 3, the crew of vehicle 61 transmits a close request signal to the general control panel 50 via the ground coil 62 and the vehicle information transmission device 63. Upon receiving this close request signal, the general control panel 50 supplies a close command signal to each platform door control unit 30. In response to this close command signal, each platform door control unit 30 closes its corresponding door 11. In response to receiving a fully closed position signal (described below) from the fully closed position sensor 41b, the platform door control unit 30 transmits a fully closed signal to the general control panel 50. Upon receiving fully closed signals from all platform door control units 30, the general control panel 50 transmits a fully closed confirmation signal to vehicle 61 via the vehicle information transmission device 63 and the ground coil 62. Upon receiving this fully closed confirmation signal, the crew of vehicle 61 closes the vehicle door. Note that station staff may also transmit a close request signal or an open request signal to the general control panel 50 using a station staff operation panel 66 installed on the platform.

[0025] Fig. 3(a) is a front view of the platform door device of the first embodiment when the doors are in the fully closed position, and Fig. 3(b) is a front view of the platform door device of the first embodiment when the doors are in the fully open position. The platform door device 100 has a pair of door pockets 10, a pair of doors 11a and 11b (sometimes collectively referred to as doors 11), a pair of drive mechanisms 13 that drive the pair of doors 11 to open and close, and a platform door control unit 30.

[0026] The platform door device 100 opens and closes the boarding / alighting entrance E, which is the space between a pair of door pockets 10, by moving the doors 11. The platform door device 100 closes the boarding / alighting entrance E by moving the door edges of the doors 11 in a direction away from the door pockets 10 and bringing the door edges of the pair of doors 11 into contact with each other (see FIG. 3(a)). The platform door device 100 opens the boarding / alighting entrance E by moving the door edges of the doors 11 in a direction approaching the door pockets 10 (see FIG. 3(b)).

[0027] The door pockets 10 house the doors 11 so that they can move back and forth. The door pockets 10 are configured such that the longitudinal direction is the opening and closing direction Dx when viewed from the front. The door pockets 10 are placed on the platform. Each door pocket 10 is provided with a drive mechanism 13. In addition, one of the pair of door pockets 10 is provided with a platform door control unit 30.

[0028] The door 11 of this embodiment is a double-door sliding door that can move from the door pocket 10 in the opening and closing direction Dx, and is configured in a panel shape.

[0029] A drive mechanism 13 is provided for each of the pair of doors 11. The drive mechanism 13 includes a motor 13m that opens and closes the door 11 in accordance with the control of the platform door control unit 30, a pair of rotors 13p connected to the motor 13m on both sides in the opening and closing direction Dx, a connecting unit 13c that transmits the driving force of the motor 13m to the door 11, a transmission member 13t that is wrapped around the pair of rotors 13p, and an encoder 13e (see FIG. 4) that detects the rotation angle of the motor 13m. The connecting unit 13c is provided, for example, on the trailing edge of the door 11. The pair of drive mechanisms 13 are connected to the platform door control unit 30 via a power line (not shown).

[0030] Figure 4 is a functional block diagram of the integrated control panel 50 and platform door device 100 of the first embodiment. Each functional block shown in each figure, including Figure 4, can be realized in hardware terms by electronic elements and mechanical parts such as a computer CPU, and in software terms by a computer program, but here we depict a functional block realized by the cooperation of these. Therefore, it will be understood by those skilled in the art that these functional blocks can be realized in various ways by combining hardware and software.

[0031] The general control panel 50 includes an opening / closing signal acquisition unit 51, a command control unit 52, and a communication control unit 53. The opening / closing signal acquisition unit 51 acquires a full-open signal and a full-close signal from the platform door control unit 30. When the command control unit 52 receives an open request signal or a close request signal from the vehicle 61 or the station staff operation panel 66, it transmits an open command signal or a close command signal to the platform door control unit 30.

[0032] The communication control unit 53 transmits a full-open confirmation signal or a full-close confirmation signal to the vehicle information transmission device 54. The communication control unit 53 also transmits predetermined information to a station office display device 64 and a display device provided on the station staff operation panel 66. As an example, these display devices display whether or not there is an abnormality in the doors 11 on the up and down tracks based on this information. The communication control unit 53 also transmits predetermined information to a general command room display device 65 in a general command room provided at a location away from the station. As an example, the general command room display device 65 displays whether or not there is an abnormality in the doors 11 at all stations based on this information.

[0033] The platform door device 100 includes an open / closed detection unit 41. The open / closed detection unit 41 includes a fully open position sensor 41a and a fully closed position sensor 41b. The fully open position sensor 41a is a sensor that detects whether the door 11 is in the fully open position, and transmits a fully open position signal indicating that the door 11 is in the fully open position. The fully closed position sensor 41b is a sensor that detects whether the door 11 is in the fully closed position, and transmits a fully closed position signal indicating that the door 11 is in the fully closed position. For example, a magnetic detection type proximity sensor or a photoelectric sensor is used as the fully open position sensor 41a and the fully closed position sensor 41b.

[0034] The platform door device 100 includes a platform door control unit 30. The platform door control unit 30 of this embodiment includes a receiving unit 31, an acquiring unit 32, a drive control unit 33, an updating unit 34, a transmitting unit 35, and a storage unit 36. The platform door control unit 30 of this embodiment is an example of a platform door control device.

[0035] The receiver 31 receives various signals supplied from the outside, such as a fully open position signal or a fully closed position signal from the open / close detector 41, a rotation angle of the motor 13 m from the encoder 13 e, an open command signal or a close command signal from the command controller 52 of the general control panel 50, etc.

[0036] The acquiring unit 32 acquires position information indicating the position of each of the pair of doors 11 based on the rotation angle of the motor 13m of each door 11 received via the receiving unit 31. In particular, the acquiring unit 32 acquires pushing position information indicating the position of the door 11 when a pushing operation, which will be described later, is being performed.

[0037] The drive control unit 33 controls the drive mechanism 13. In particular, the drive control unit 33 drives the door 11 in the closing direction so that it reaches a target position indicated by target position information described below that is stored in the storage unit 36. When the target position information is updated as described below, the drive control unit 33 drives the door 11 in the closing direction so that it reaches the target position indicated by the updated target position information.

[0038] Furthermore, for example, the drive control unit 33 controls the motor 13m of the drive mechanism 13 in response to the open command signal or the close command signal received via the receiving unit 31 to move each of the pair of doors 11 in the opening / closing direction. The drive control unit 33 of this embodiment controls the drive current flowing through the motor 13m of the door 11, thereby controlling the drive of the door 11 in the opening / closing direction.

[0039] An example of processing by the drive control unit 33 when driving the door 11 to close will be described using FIG. 5 . FIG. 5 is a graph showing the traveling speed of the door 11 versus time during the closing operation of the door 11. The drive control unit 33 of this embodiment causes the drive mechanism 13 to execute the closing operation shown in FIG. 5 . The closing operation of this embodiment includes an acceleration control operation for accelerating the door 11 stopped at the fully open position to a predetermined first speed, a high-speed control operation for maintaining the first speed, a deceleration control operation for decelerating to a second speed, a low-speed control operation for maintaining the second speed until the door 11 reaches a target position, and a pushing operation for further driving the door 11 to close and pressing the door edge of one door 11 against the door edge of the other door 11 during the period from when the door 11 reaches the target position by the closing movement until the door 11 next moves in the opening direction. In particular, the pushing operation keeps the door edges of the pair of doors 11 pressed against each other in the fully closed position. Therefore, the doors 11 are less likely to open even when a load in the opening direction is applied to the pair of doors 11, such as when a passenger tries to pry the doors 11 open. This ensures the safety of passengers.

[0040] The update unit 34 updates the target position information stored in the storage unit 36 ​​using the pressing position information via the acquisition unit 32. The pressing position information in this embodiment indicates the rotation angle of the motor 13m at the stop position where the pair of doors 11 stops during the pressing operation. The target position information in this embodiment indicates the rotation angle of the motor 13m at the target position.

[0041] The transmitter 35 transmits a full-open signal or a full-close signal to the general control panel 50 .

[0042] The storage unit 36 ​​stores target position information indicating a target position for fully closing the boarding / alighting door, various threshold values, etc. The target position in this embodiment corresponds to the fully closed position.

[0043] Here, the platform 3 expands or contracts, particularly in the longitudinal direction, due to changes in temperature, etc. For example, the platform 3 expands when the temperature rises. When the platform 3 expands, the expansion joint 4 contracts. That is, when the platform 3 expands, the opening width of the boarding / alighting door E between a pair of door pockets 10 installed on one platform 3 widens. When the opening width of the boarding / alighting door E of the platform door device 100 widens, even if the movement amount of the doors 11 reaches a predetermined amount, a gap corresponding to the widening of the opening width is created between the doors 11. This gap may cause discomfort or anxiety to passengers.

[0044] Furthermore, for example, the platform 3 contracts when the temperature drops. When the platform 3 contracts, the expansion joint 4 expands. That is, when the platform 3 contracts, the opening width of the platform door E between a pair of door pockets 110 installed on one platform 3 narrows. If the opening width of the platform door E of the platform door device 100 narrows, the doors 11 may close fully before reaching a predetermined amount of movement, causing the edges of the doors 11 on both sides to collide, resulting in an abnormal noise. This abnormal noise may also cause discomfort or anxiety to passengers, and the collision may also cause the platform door device 100 to malfunction or deteriorate.

[0045] Therefore, there is a need for technology that adjusts the amount of door movement to determine that door 11 has reached the fully closed position in accordance with changes in the opening width of the platform door device 100's boarding and alighting gate E due to the expansion or contraction of the platform.

[0046] A known example of such technology is the platform door device described in Patent Document 1. The platform door device described in Patent Document 1 closes the doors at predetermined time intervals, and when the doors stop in the fully closed position, it sets the position of the doors as the fully closed position and periodically updates the set value for the fully closed position.

[0047] However, the platform door system described in Patent Document 1 requires door closing control at predetermined time intervals to update the set value for the fully closed position, in addition to the normal door opening and closing control for passengers boarding and disembarking. This increases the processing load of the platform door system by the amount of door closing control required for the update.

[0048] The inventors have discovered that by using the following method, it is possible to control the doors to close using an appropriate target position while suppressing an increase in the processing load on the platform door device 100. This method will be described in detail below.

[0049] FIG. 6 is a flowchart showing the process S10 of the platform door control unit 30 in the first embodiment.

[0050] In step S11, the receiver 31 determines whether or not a close command signal for moving the door 11 in the open direction has been received from the general control panel 50. If a close command signal has not been received (N in S11), the process S10 returns to the beginning of step S11. If a close command signal has been received (Y in S11), the receiver 31 supplies the close command signal to the drive control unit 33, and the process S10 proceeds to step S12.

[0051] In step S12, the drive control unit 33 moves the door 11 to close. In particular, the drive control unit 33 reads the target position information from the storage unit 36, and drives the door 21 to close so that the door 21 reaches the target position indicated by the target position information stored in the storage unit 36. In step S12, the acceleration control operation, high-speed control operation, deceleration control operation, and low-speed control operation described above in FIG. 5 are executed in this order.

[0052] In step S13, the drive control unit 33 determines whether the doors 11 are in a fully closed state. For example, based on the positions of the doors 11 acquired via the acquisition unit 32, the drive control unit 33 determines that the doors 11 are in a fully closed state if the doors 11 reach the target position indicated by the target position information or if the doors 11 stop at a position within a predetermined distance range from the target position in the opening direction so that the doors 11 can be considered to be in a fully closed state. In this embodiment, the door positions are determined based on the rotation angle of the motor 13m. Therefore, whether the doors 11 are in a fully closed state is determined based on whether the rotation angle of the motor 13m is within a predetermined range based on the rotation angle corresponding to the target position. Therefore, depending on the contraction of the platform 3, even if the doors 11 are determined to be in a fully closed state, a gap may be generated between the pair of doors 11. If the doors 11 are not in a fully closed state (N in S13), the process S10 returns to step S12. If the doors 11 are in a fully closed state (Y in S13), the process S10 proceeds to step S14.

[0053] In step S14, the drive control unit 33 causes the drive mechanism 13 to execute a pressing operation. In the pressing operation, the pair of doors 11 are driven to close by pressing them against each other with the same driving force. When the platform 3 is not contracted and there is no gap between the pair of doors 11, the pair of doors 11 continue to stop in a state where they are pressed against each other. When the platform 3 is contracted and there is a gap between the pair of doors 11, the pair of doors 11 are driven to close by the pressing operation, and as a result, the pair of doors 11 move further in a closing direction from their respective target positions, so that the edges of the pair of doors 11 come into contact with each other, filling the gap, and then the pair of doors 11 continue to stop in a state where they are pressed against each other.

[0054] In step S15, the transmitter 35 transmits a full-close signal to the general control panel.

[0055] In step S16, the receiving unit 31 determines whether or not an open command signal has been received from the general control panel 50. If an open command signal has not been received (N in S16), the process S10 returns to the beginning of step S16. If a close command signal has been received (Y in S16), the receiving unit 31 supplies a pressing position acquisition command signal to the acquiring unit 32, and the process S10 proceeds to step S17.

[0056] In step S17, the acquisition unit 32 acquires pressed position information. In this embodiment, the pressed position information indicates the positions of the pair of doors 11 when the pair of doors 11 are stopped by being pressed against each other by a pressing operation. The acquisition unit 32 supplies the acquired pressed position information to the update unit 34, and the process S10 proceeds to step S18.

[0057] In step S18, the update unit 34 uses the acquired pressing position information to update the target position information stored in the storage unit 36. As a result, the next time the door 11 is driven to close, it will be driven to close with the target position indicated in the updated target position information as its target. Thereafter, the update unit 34 supplies an open command signal to the drive control unit, and the process S10 proceeds to step S19.

[0058] In step S19, the drive control unit 33 moves the door 11 to open.

[0059] After step S19, the door 11 reaches the fully open position, and the process S10 ends.

[0060] As described above, in this embodiment, the drive control unit 33 causes the drive mechanism 13 to execute a pushing operation after the door 11 reaches the target position. When the target position information is updated using pushing position information indicating the position of the door 11 when the pushing operation is being executed, the drive control unit 33 drives the door 11 in the closing direction so that the door 11 reaches the target position indicated by the updated target position information. According to this configuration, the position of the door 11 when the pair of doors 11 are closed without a gap due to the pushing operation used during the normal closing operation of the door 11 can be updated as the target position for the next closing operation. Here, the pushing operation is an existing operation normally used to prevent passengers from forcing the door 11 open, for example, and is not a newly added operation to address the expansion and contraction of the platform 3. By using this pushing operation, the target position can be adjusted to match the expansion and contraction of the platform 3 at that time, without the need to additionally drive the door 11 to close in order to update the target position. Therefore, it is possible to control the door 11 to close using an appropriate target position while suppressing an increase in the processing load on the platform door device 100.

[0061] In this embodiment, the acquisition unit 32 acquires the pressed position information in response to receiving an open command signal. Here, in the platform door device 100, the door 11 is basically fully open for only a short time, and the door 11 is in a fully closed state for a long period of time. Therefore, it is expected that the platform 3 will expand or contract while the door 11 is fully closed. With this configuration, even if the door 11 is in a fully closed state for a long period of time, the target position information can be appropriately updated to a position that matches the expansion or contraction of the platform 3.

[0062] A modification of this embodiment will now be described.

[0063] In the embodiment, a pair of double-swing doors 11 is used, but the present invention is not limited to this and a single single-swing door 11 may be used. In this case, the door 11 may be pressed against an opposing object such as a door stop.

[0064] In the embodiment, a sliding door configured in a panel shape is used as the door 11, but the door is not limited to this, and for example, a bar for opening and closing the boarding / alighting entrance E may be used.

[0065] In the embodiment, the target position information is updated by driving the door 11 to close and executing a pushing operation in response to a close command signal from the general control panel 50, but this is not limiting. For example, the target position information may be updated in response to a close command signal from a work terminal of an operator or the like.

[0066] In the embodiment, the pushing position information indicates the position when the door 11 is stopped by the pushing process, but is not limited to this. The pushing position information may also indicate the position when the door 11 is moving in the opening direction or closing direction while pushing against each other by the pushing process.

[0067] In the embodiment, in response to obtaining the open command signal in step S16, the pressing position information is obtained in step S17 before the opening movement of the door 11 (step S19) is executed, but this is not limited to this. For example, the pressing position information may be obtained based on the rotation angle of the motor 13m from the start of the opening movement of the door 11 until the door 11 reaches the fully open position, or the pressing position information may be obtained at any time from the start of the pressing process until the opening command signal is obtained.

[0068] The transmitter 35 may supply the updated target position information to the fully closed position sensor 41b, causing the fully closed position sensor 41b to use the target position indicated by the updated target position information as the fully closed position. Also, the platform door device 100 does not need to have the fully closed position sensor 41b.

[0069] In the embodiment, the pressing position information indicates the rotation angle of the motor 13m at the stop position, but is not limited to this and may indicate, for example, the distance from a reference position determined along the opening / closing direction to the stop position. The same applies to the target position information.

[0070] Second embodiment A second embodiment of the present invention will be described below. In the drawings and description of the second embodiment, components and members that are the same as or equivalent to those in the first embodiment will be given the same reference numerals. Explanations that overlap with the first embodiment will be omitted as appropriate, and the description will focus on the configurations that differ from the first embodiment.

[0071] FIG. 7 is a functional block diagram of the integrated control panel 50 and platform door apparatus 100 according to the second embodiment. The platform door control unit 30 of the platform door apparatus 100 according to the second embodiment further includes a calculation unit 37. The calculation unit 37 calculates the amount of positional deviation between the stop position at which each of the pair of doors 11 stops during the pushing operation and the target position. The update unit 34 updates the target position using the calculated amount of positional deviation so that the amount of positional deviation between the stop position during the pushing operation and the updated target position is equal for each of the pair of doors 11. The platform door apparatus 100 has specifications that stipulate an allowable range for the time required for each of the opening and closing operations of the doors 11. Therefore, the fully closed position of the doors 11 is adjusted so that the time required for the opening and closing operations of the doors 11 falls within the specifications. However, when the platform 3 contracts, the amount of movement of one door 11 to its target position during the opening or closing operation increases, while the amount of movement of the other door 11 to its target position decreases. As a result, the time required to reach the target position during the opening or closing operation of the door 11 changes, and the required time may not fall within the allowable range defined by the specifications. According to the second embodiment, even when the platform 3 contracts, the movement distances of both doors 11 to the target positions are more likely to be equalized, and the change in the required time for the opening or closing operation due to contraction of the platform 3 is reduced. Therefore, even when the platform 3 contracts, the required time is more likely to fall within the allowable range defined by the specifications. Specific processing of the second embodiment will be described below.

[0072] Figure 8 is a flowchart showing the process S20 of the platform door control unit 30 in the second embodiment. Steps S21 to S27 and S30 in Figure 8 are basically the same as steps S11 to S17 and S19 in Figure 6 except where specifically noted, and therefore a description thereof will be omitted.

[0073] After steps S21 to S26, when the pressing position information is acquired in step S27, the acquisition unit 32 supplies the acquired pressing position information to the calculation unit 37.

[0074] In step S28, the calculation unit 37 calculates the amount of positional deviation in the opening / closing direction Dx between the stop position of the door 11 when each of the pair of doors stops in the pressing operation and the target position based on the acquired pressing position information and the current target position information (see FIG. 9). The calculation unit 37 supplies the calculated amount of positional deviation to the update unit 34, and the process S20 proceeds to step S29.

[0075] In step S29, the update unit 34 updates the target position using the calculated positional deviation amount so that the positional deviation amount between the stop position in the pushing operation and the updated target position is equal for each of the pair of doors 11. Specifically, as shown in Fig. 9, the update unit halves the calculated positional deviation amount, and updates the target position information so that the target position for each of the pair of doors 11 is a position shifted by the halved positional deviation amount from the stop position in the pushing operation toward the current target position.

[0076] After step S30, the process S20 ends.

[0077] Any combination of the above-described embodiments and modifications is also useful as an embodiment of the present invention. A new embodiment resulting from the combination has the combined effects of the combined embodiments and modifications.

[0078] Among the embodiments disclosed in this specification, those in which multiple functions are provided in a distributed manner may have some or all of the multiple functions integrated together, and conversely, those in which multiple functions are provided in a distributed manner may have some or all of the multiple functions integrated together. Regardless of whether the functions are integrated or distributed, it is sufficient that the configuration can achieve the object of the invention. [Explanation of symbols]

[0079] 1 Station, 2 Track, 3 Platform, 4 Expansion joint, 5 Platform screen door system, 10 Door pocket, 11 Door, 13 Drive mechanism, 30 Platform door control unit, 31 Receiving unit, 32 Acquisition unit, 33 Drive control unit, 34 Update unit, 35 Transmitting unit, 36 Memory unit, 37 Calculation unit, 100 Platform door device.

Claims

1. Doors that open and close the boarding and alighting doors on the platform, a drive mechanism that drives the door to open and close the boarding / alighting door; a storage unit that stores target position information indicating a target position at which the boarding / alighting door is to be fully closed; a drive control unit that controls the drive mechanism, and that drives the door in the closing direction to reach the target position indicated by the stored target position information in response to receiving a close command signal from a general control panel that outputs a close command signal for moving the door in the closing direction and an open command signal for moving the door in the opening direction, and causes the drive mechanism to execute a pressing operation to press the door edge of the door against an opposing object after the door reaches the target position until the door is next driven in the opening direction; an acquisition unit that acquires pushing position information indicating the position of the door when the pushing operation is being performed in response to receiving the open command signal from the general control panel; an updating unit that updates the stored target position information using the acquired pressing position information, The drive control unit drives the door in the closing direction so that it reaches the target position indicated by the updated target position information.

2. The doors are a pair of doors that open and close the boarding / alighting entrance, The pushing position information indicates a stop position of each of the pair of doors when the door stops during the pushing operation, a calculation unit that calculates a positional deviation amount between the stop position and the target position, the updating unit updates the target positions using the calculated positional deviation amounts so that positional deviation amounts between the stop positions and the updated target positions are equal for each of the pair of doors. The platform door device according to claim 1.

3. The doors are a pair of doors that open and close the boarding / alighting entrance, the drive mechanism includes a motor; the target position information indicates a rotation angle of the motor at the target position, the pushing position information indicates a rotation angle of the motor at a stop position where each of the pair of doors stops during the pushing operation; A platform door device as described in claim 1 or 2.

4. Doors that open and close the boarding and alighting doors on the platform, a drive mechanism that drives the door to open and close the boarding / alighting door; A method for controlling a platform door device comprising: storing target position information indicating a target position at which the boarding / alighting door is to be fully closed; a step of driving the door in the closing direction to reach the target position indicated by the stored target position information in response to receiving the close command signal from an integrated control panel that outputs a close command signal for moving the door in the closing direction and an open command signal for moving the door in the opening direction; After the door reaches the target position, a step of causing the drive mechanism to perform a pressing operation of pressing a door edge of the door against an opposing object until the door is next driven in the opening direction; acquiring pushing position information indicating the position of the door when the pushing operation is being performed in response to receiving the open command signal from the general control panel; updating the stored target position information using the acquired pressing position information; The driving step drives the door in a closing direction to reach the target position indicated by the updated target position information.

5. Doors that open and close the boarding and alighting doors on the platform, a drive mechanism that drives the door to open and close the boarding / alighting door; A platform door control program for controlling a platform door device comprising: storing target position information indicating a target position at which the boarding / alighting door is to be fully closed; a step of driving the door in the closing direction to reach the target position indicated by the stored target position information in response to receiving the close command signal from an integrated control panel that outputs a close command signal for moving the door in the closing direction and an open command signal for moving the door in the opening direction; After the door reaches the target position, a step of causing the drive mechanism to perform a pressing operation of pressing a door edge of the door against an opposing object until the door is next driven in the opening direction; acquiring pushing position information indicating the position of the door when the pushing operation is being performed in response to receiving the open command signal from the general control panel; updating the stored target position information using the acquired pressing position information; A platform door control program in which the driving step drives the door in the closing direction so that it reaches the target position indicated by the updated target position information.

6. Doors that open and close the boarding and alighting doors on the platform, a drive mechanism that drives the door to open and close the boarding / alighting door; A platform door control device that controls a platform door device comprising: a storage unit that stores target position information indicating a target position at which the boarding / alighting door is to be fully closed; a drive control unit that controls the drive mechanism, and that drives the door in the closing direction to reach the target position indicated by the stored target position information in response to receiving a close command signal from a general control panel that outputs a close command signal for moving the door in the closing direction and an open command signal for moving the door in the opening direction, and causes the drive mechanism to execute a pressing operation to press the door edge of the door against an opposing object after the door reaches the target position until the door is next driven in the opening direction; an acquisition unit that acquires pushing position information indicating the position of the door when the pushing operation is being performed in response to receiving the open command signal from the general control panel; an updating unit that updates the stored target position information using the acquired pressing position information, The drive control unit drives the door to close so that it reaches the target position indicated by the updated target position information.

Images