JP7779704B2 - Platform door device, method, program, and platform door control device - Google Patents

Description

The present invention relates to a platform door device, method, program, and platform door control device.

In recent years, the installation of platform door devices has been progressing to further improve safety on train platforms. Platform door devices remain closed until the train enters the platform, restricting passengers from moving from the platform side to the track side. When the train stops at the designated position on the platform, the platform door devices open, allowing passengers to board and disembark the train.

When a platform door system drives its 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 platforms expand or contract, particularly in the longitudinal direction, due to changes in temperature, etc., the opening width of the platform door system's platform door also changes depending on the platform's expansion or contraction.

However, if the opening width of the platform door system's platform door opening widens, a gap corresponding to the widening of the opening width will appear between the doors, even if the door movement reaches a predetermined amount. This gap could cause discomfort or anxiety to passengers. Furthermore, if the opening width of the platform door opening narrows, the doors may close fully before the door movement reaches the predetermined amount, causing the door edge to collide with the opposing object (a door stop or the other door of a double-swing system), resulting in an abnormal noise. This abnormal noise could also cause discomfort or anxiety to passengers, and the collision could cause the platform door system to malfunction or deteriorate. Therefore, there is a need for technology that can adjust the amount of door movement 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.

One such technology is a platform door system that closes the doors at predetermined time intervals, and when the doors stop in the fully closed position, the system sets the door position as the fully closed position and periodically updates the set value for the fully closed position (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2020-11644

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.

In light of the above issues, the present invention aims to provide technology that enables platform door systems to close using appropriate target positions while minimizing the processing load on the system.

In order to solve the above problem, one aspect of the present invention provides a platform door device comprising: a door for opening and closing a platform entrance; a drive mechanism for driving the door to open and close the entrance; a memory unit for storing target position information indicating a target position for fully closing the entrance; a drive control unit for controlling the drive mechanism; the drive control unit drives the door in the closing direction to reach the target position indicated by the stored target position information; and, after the door reaches the target position, causes the drive mechanism to perform a pushing operation to push the door edge against an opposing object until the door is next driven in the opening direction; an acquisition unit for acquiring pushing position information indicating the position of the door when the pushing operation is being performed; and an update unit for using the acquired pushing position information to update the stored target position information; the drive control unit drives the door in the closing direction to reach the target position indicated by the updated target position information.

A method according to one aspect of the present invention is a method for controlling a platform door system that includes doors for opening and closing platform entrances and exits and a drive mechanism for driving the doors to open and close the entrances, the method comprising the steps of: storing target position information indicating a target position for fully closing the entrances; driving the doors in the closing direction to reach the target position indicated by the stored target position information; causing the drive mechanism to perform a pushing operation to push the door edge against an opposing object after the door reaches the target position and before 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; and updating the stored target position information using the acquired pushing position information, wherein the driving step drives the doors in the closing direction to reach the target position indicated by the updated target position information.

One aspect of the platform door control program of the present invention is a platform door control program for controlling a platform door system that includes doors that open and close platform entrances and exits, and a drive mechanism that drives the doors to open and close the 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 entrances and exits are to be fully closed; driving the doors in the closing direction to reach the target position indicated by the stored target position information; causing the drive mechanism to perform a pushing operation to push the door edge against an opposing object after the doors reach the target position and before the doors are next driven in the opening direction; acquiring pushing position information that indicates the position of the doors 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 to reach the target position indicated by the updated target position information.

One aspect of the present invention is a platform door control device that controls a platform door device equipped with doors that open and close platform entrances and exits, and a drive mechanism that drives the doors to open and close the entrances. The device includes a memory unit that stores target position information indicating a target position for fully closing the entrances and an operation control unit that controls the operation control unit. The drive control unit drives the doors in the closing direction to reach the target position indicated by the stored target position information, and causes the operation control unit to perform a pushing operation to push the door edge against an opposing object after the doors reach the target position and before the doors are next driven in the opening direction. The drive control unit also includes an acquisition unit that acquires pushing position information indicating 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. The drive control unit drives the doors to close so that they reach the target position indicated by the updated target position information.

In addition, any combination of the above, or mutual substitution of the components or expressions of the present invention between methods, devices, programs, temporary or non-temporary storage media on which programs are recorded, systems, etc., are also valid aspects of the present invention.

This invention makes it possible to control the closing of doors using appropriate target positions while minimizing the processing load on the platform door system.

This is a plan view of a station where a platform door device is installed, viewed from above. FIG. 1 is a block diagram illustrating a platform screen door system. 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. This is a functional block diagram of the integrated control panel and platform door device of the first embodiment. 10 is a graph showing the travel speed of the door versus time during the closing operation of the door. 10 is a flowchart showing the processing of the platform door control unit of the first embodiment. This is a functional block diagram of the general control panel and platform door device of the second embodiment. 10 is a flowchart showing the processing of the platform door control unit of the second embodiment. 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.

In the following embodiments and variants, identical or equivalent components and parts are given the same reference numerals, and redundant explanations are omitted where appropriate. Furthermore, the dimensions of the parts in each drawing are enlarged or reduced as appropriate to facilitate understanding. Furthermore, some parts that are not important for explaining the embodiments are omitted from each drawing.

First Embodiment Fig. 1 is a plan view of a station 1 in which a platform door device 100 is installed, as seen from above. As shown in Fig. 1, the station 1 includes a track 2 on which trains run and platforms 3 where train passengers board and disembark. The platform 3 is divided into multiple sections along the direction in which the track 2 extends. Expansion joints 4 are provided between the multiple divided platforms 3. The expansion joints 4 are installed in gaps provided in the connecting parts of the platforms 3. The platform door device 100 is installed along the edge of the platform 3 on the track 2 side.

Figure 2 is a block diagram showing a schematic diagram of the platform screen door system 5. The platform screen door system 5 comprises a general control panel 50 and multiple platform door devices 100. The platform door devices 100 include a platform door control unit 30.

Multiple platform door devices 100 are provided on the inbound and outbound tracks of platform 3 at station 1. When a vehicle 61 stops at a predetermined position on platform 3, the multiple platform door devices 100 are each positioned at entrances E (see Figure 3) located at positions corresponding to each vehicle door of the vehicle 61.

One general control panel 50 is provided on each platform and is connected to the platform door control units 30 of the multiple platform door devices 100. The doors 11 of the platform door devices 100 are controlled to open and close by the general control panel 50 via the platform door control units 30. Passengers can board and disembark from the vehicle 61 by opening the vehicle doors and the doors 11. Passengers can board and disembark by closing either the vehicle doors or the doors 11.

The general control panel 50 and each platform door control unit 30 can communicate with each other. For example, the general control panel 50 sends 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 sends 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 sends a full close signal to the general control panel 50. Each platform door control unit 30 can send status information, etc., described below, to the general control panel 50.

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

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. As a result, the general control panel 50 detects that the vehicle 61 has stopped. The crew 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 62 and the ground coil 62. When the driver of vehicle 61 receives this full-open confirmation signal, he or she opens the vehicle door.

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 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 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.

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. 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.

The platform door system 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 system 100 closes the boarding/alighting entrance E by moving the door edges of the doors 11 away from the door pockets 10 and bringing the door edges of the pair of doors 11 into contact with each other (see Figure 3(a)). The platform door system 100 opens the boarding/alighting entrance E by moving the door edges of the doors 11 toward the door pockets 10 (see Figure 3(b)).

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

The door 11 in 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.

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 rotating bodies 13p connected to the motor 13m on both sides in the opening and closing direction Dx, a connecting portion 13c that transmits the driving force of the motor 13m to the door 11, a transmission member 13t wrapped around the pair of rotating bodies 13p, and an encoder 13e (see Figure 4) that detects the rotation angle of the motor 13m. The connecting portion 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).

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 using electronic elements and mechanical parts, such as a computer CPU, and in software terms using computer programs, etc., but here we depict functional blocks realized by the cooperation of these elements. Therefore, those skilled in the art will understand that these functional blocks can be realized in various ways by combining hardware and software.

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.

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 specified information to the station office display device 64 and the display device provided on the station staff operation panel 66. For example, these display devices display the presence or absence of abnormalities in the doors 11 on the up and down tracks based on this information. The communication control unit 53 also transmits specified information to the general command room display device 65 in the general command room located away from the station. For example, the general command room display device 65 displays the presence or absence of abnormalities in the doors 11 at all stations based on this information.

The platform door device 100 includes an open/close detection unit 41. The open/close 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 proximity sensor or a photoelectric sensor is used as the fully open position sensor 41a and the fully closed position sensor 41b.

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 memory unit 36. The platform door control unit 30 of this embodiment is an example of a platform door control device.

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

The acquisition 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 acquisition unit 32 acquires pressing position information indicating the position of the door 11 when the pressing operation described below is being performed.

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 the target position indicated by the target position information (described below) stored in the memory 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.

Furthermore, for example, the drive control unit 33 controls the motor 13m of the drive mechanism 13 in response to an open command signal or a close command signal received via the receiving unit 31 to move each of the pair of doors 11 in the opening/closing direction. In this embodiment, the drive control unit 33 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.

An example of the processing performed by the drive control unit 33 when driving the door 11 to close will be described using Figure 5. Figure 5 is a graph showing the travel speed of the door 11 versus time during the closing operation of the door 11. In this embodiment, the drive control unit 33 causes the drive mechanism 13 to execute the closing operation shown in Figure 5. The closing operation in this embodiment includes an acceleration control operation that accelerates the door 11, which is stopped in the fully open position, to a predetermined first speed; a high-speed control operation that maintains the first speed; a deceleration control operation that decelerates the door 11 to a second speed; a low-speed control operation that maintains the second speed until the door 11 reaches the target position; and a pushing operation that further drives the door 11 to close and presses the edge of one door 11 against the edge of the other door 11 after the door 11 reaches the target position during the closing movement and before the door 11 next moves in the opening direction. In particular, the pushing operation keeps the 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 if 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.

The update unit 34 uses the pressing position information via the acquisition unit 32 to update the target position information stored in the memory unit 36. In this embodiment, the pressing position information indicates the rotation angle of the motor 13m at the stop position where the pair of doors 11 stop during the pressing operation. In this embodiment, the target position information indicates the rotation angle of the motor 13m at the target position.

The transmitter 35 transmits a fully open signal or a fully closed signal to the general control panel 50.

The memory unit 36 stores target position information indicating the target position for fully closing the boarding/alighting door, various thresholds, etc. In this embodiment, the target position corresponds to the fully closed position.

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. In other words, when the platform 3 expands, the opening width of the platform door E between a pair of door pockets 10 installed on one platform 3 widens. When the opening width of the platform door E of the platform door device 100 widens, a gap equivalent to the widening of the opening width is created between the doors 11, even if the movement amount of the doors 11 reaches a predetermined amount. This gap may cause discomfort or anxiety to passengers.

Furthermore, for example, the platform 3 contracts when the temperature drops. When the platform 3 contracts, the expansion joint 4 extends. In other words, 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.

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

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

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

The inventors have discovered that by using the following method, it is possible to control the closing of the doors using an appropriate target position while minimizing the increase in the processing load on the platform door system 100. This method is described in detail below.

Figure 6 is a flowchart showing processing S10 of the platform door control unit 30 in the first embodiment.

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), 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 process S10 proceeds to step S12.

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 memory unit 36 and drives the door 21 to close so that it reaches the target position indicated by the target position information stored in the memory unit 36. In step S12, the acceleration control operation, high-speed control operation, deceleration control operation, and low-speed control operation described above in Figure 5 are executed in order.

In step S13, the drive control unit 33 determines whether the doors 11 are fully closed. For example, based on the positions of each door 11 acquired via the acquisition unit 32, the drive control unit 33 determines that the doors 11 are fully closed if the door 11 reaches the target position indicated by the target position information, or if the door 11 stops at a position within a predetermined distance range from the target position in the opening direction that can be considered to be fully closed. In this embodiment, the door position is determined based on the rotation angle of the motor 13m, and therefore whether the doors 11 are fully closed 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 fully closed, a gap may exist between the pair of doors 11. If the doors 11 are not fully closed (N in S13), process S10 returns to step S12. If the doors are fully closed (Y in S13), process S10 proceeds to step S14.

In step S14, the drive control unit 33 causes the drive mechanism 13 to perform 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. If the platform 3 has not contracted and there is no gap between the pair of doors 11, the pair of doors 11 remain stopped in a state where they are pressed against each other. If the platform 3 has 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, causing the pair of doors 11 to move further in a closed position 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 remain stopped in a state where they are pressed against each other.

In step S15, the transmitter 35 transmits a fully closed signal to the general control panel.

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), 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 acquisition unit 32, and process S10 proceeds to step S17.

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 they 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 processing S10 proceeds to step S18.

In step S18, the update unit 34 updates the target position information stored in the memory unit 36 using the acquired pressed position information. 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 the target. The update unit 34 then supplies an open command signal to the drive control unit, and processing S10 proceeds to step S19.

In step S19, the drive control unit 33 moves the door 11 to the open position.

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

As described above, in this embodiment, the drive control unit 33 causes the drive mechanism 13 to perform 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 performed, 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. With this configuration, the position of the door 11 when the pair of doors 11 are closed tightly by 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. This makes it possible to control the closing of the door 11 using an appropriate target position while minimizing the increase in processing load on the platform door device 100.

In this embodiment, the acquisition unit 32 acquires the pressed position information in response to receiving an open command signal. In the platform door device 100, the door 11 is generally only fully open for a short period of time, and remains fully closed 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 remains fully closed 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.

Below, we will explain some variations of this embodiment.

In the embodiment, a pair of double-swing doors 11 are used, but this is not limited to this; a single single-swing door 11 may also be used. In this case, the door 11 only needs to be pressed against an opposing object such as a door stop.

In the embodiment, a panel-shaped sliding door was used as the door 11, but this is not limited to this. For example, a bar for opening and closing the boarding/alighting entrance E may also be used.

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 limited to this. For example, the target position information may also be updated in response to a close command signal from a worker's work terminal, etc.

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

In the embodiment, in response to receiving the open command signal in step S16, the pressed position information is obtained in step S17 before the door 11 is opened (step S19), but this is not limited to this. For example, the pressed position information may be obtained based on the rotation angle of the motor 13m from when the door 11 starts to open until it reaches the fully open position, or the pressed position information may be obtained at any time from when the pressing process begins until the open command signal is received.

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. Furthermore, the platform door device 100 may not have a fully closed position sensor 41b.

In the embodiment, the pressing position information indicates the rotation angle of the motor 13m at the stop position, but this 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.

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 denoted by 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.

Figure 7 is a functional block diagram of the integrated control panel 50 and platform door device 100 of the second embodiment. The platform door control unit 30 of the platform door device 100 of the second embodiment further includes a calculation unit 37. The calculation unit 37 calculates the amount of positional deviation between the stop position where 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. Here, in the platform door device 100, the allowable range of the time required for each of the opening and closing operations of the door 11 is determined by its specifications. Therefore, the fully closed position of the door 11 is adjusted so that the time required for the opening and closing operations of the door 11 falls within the specifications. However, when the platform 3 contracts, the amount of movement of one door 11 to the target position during the opening or closing operation increases, while the amount of movement of the other door 11 to the 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 this 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 position are more likely to be equalized, and the change in the time required for the opening or closing operation due to the contraction of the platform 3 is reduced. Therefore, even when the platform 3 contracts, the time required is more likely to fall within the allowable range defined by the specifications. Specific processing in the second embodiment is described below.

Figure 8 is a flowchart showing processing S20 by the platform door control unit 30 in the second embodiment. Steps S21 to S27 and S30 in Figure 8 are essentially the same as steps S11 to S17 and S19 in Figure 6 except where specifically noted, and therefore their explanation will be omitted.

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

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 during the pressing operation and the target position, based on the acquired pressing position information and current target position information (see Figure 9). The calculation unit 37 supplies the calculated amount of positional deviation to the update unit 34, and processing S20 proceeds to step S29.

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.

After step S30, process S20 ends.

Any combination of the above-described embodiments and variations is also useful as an embodiment of the present invention. New embodiments resulting from such combinations combine the effects of the combined embodiments and variations.

Among the embodiments disclosed in this specification, those in which multiple functions are provided in a distributed manner may have some or all of those functions integrated together, and conversely, those in which multiple functions are provided in a distributed manner may have some or all of those functions integrated together. Regardless of whether the functions are integrated or distributed, it is sufficient that the configuration is such that the purpose of the invention can be achieved.

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 (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 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. 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. 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 . 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. 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. 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.