JP6227694B2 - Platform screen door open / close control method - Google Patents

Description

  The present invention relates to a technique for controlling opening and closing of a flat form screen door whose door is opened and closed in a vertical direction.

  There may be accidents where train platform passengers fall on tracks or collide with moving vehicles. In order to prevent such an accident, a left and right open / close type platform screen door that opens and closes between the platform and the track is installed (in this specification, the platform screen door is a platform safety device or a platform safety door). Sometimes called). Left and right open / close doors are provided corresponding to train doors, and a plurality of doors are installed along the platform. The left and right open / close door is provided with a lock device for allowing manual opening and closing in an emergency. In an emergency, the person on the track side can release the lock device and manually open and close the left / right open / close door. When using a left / right open platform screen door, the position of the stopped train door should match the position of the screen door, so the left / right open platform screen door should be used on platforms where various trains stop. I can't.

  On the other hand, Patent Document 1 discloses a technique related to a vertical opening / closing type platform screen door. A vertical open / close platform screen door according to this technology includes a main body installed between both ends of the platform, a vertical open / close door that moves vertically along the main body, and a drive that moves the vertical open / close door in a vertical manner. Including a bowl. In this case, when the vertical opening / closing door has a form extended in the left-right direction, the train door and the vertical opening / closing door that stops on the platform do not need to correspond to 1: 1. Therefore, various types of trains can be stopped on the platform on which such a vertical opening / closing type screen door is installed.

  Since the above-described vertical opening / closing type platform screen door moves in the vertical direction, there is a risk of injury to the passenger's head in the process of closing the door. In addition, when the left and right lengths of the vertical open / close door are long, the weight of the door may increase and the energy for driving the door may increase. In order to solve such a problem, the conventional vertical open / close platform screen door technology provides a vertical open / close door in a rope type.

  However, providing the vertical opening / closing platform screen door in the rope type as described above causes other problems. Since the door of the left and right open / close type platform screen door is provided in a plate type, when providing the locking device to the track side portion of the plate type door, a person on the platform side must operate the locking device. I can't. However, when the door of the vertical opening / closing type platform screen door is provided as a rope type, the lock device installed on the door has a problem that both the track side person and the platform side person can operate. Such a problem may also occur when the vertical opening / closing door is manufactured in another form such as a mesh type.

  When using a vertical opening / closing platform screen door, an unexpected safety problem may occur that does not occur when using a left / right opening platform screen door. In particular, the problem is how to set the point at which the screen door starts to open or close. Therefore, an open / close control technique different from the left / right open / close platform screen door is required.

Korean Registered Patent No. 10-060112

  The present invention provides a new door opening / closing control technique for preventing a safety accident that may occur when operating a vertical opening / closing platform screen door. One aspect of the present invention provides a technique for controlling when a platform screen door is allowed to open or close. In another aspect of the present invention, a control technique for controlling manual opening / closing of a vertical opening / closing platform screen door is provided.

  In accordance with one aspect of the present invention, a method is provided for controlling a screen door utilizing a train sensing sensor array disposed along the length of a platform. In this method, the train is not detected by the train detection sensor at the head of the sensor array, and the continuous train detection sensors of at least some of the remaining train detection sensors excluding the train detection sensor at the head are used as the method. A first step of allowing the screen door to open if a train is detected is included.

  At this time, the screen door is allowed to open only when the speed of the train is equal to or lower than a preset speed. That is, whether or not the screen door is allowed to open is controlled by the speed of the train. At this time, the speed is obtained by using information about a distance between at least two train detection sensors in the train detection sensor array and a time when the train is detected by each of the at least two train detection sensors. Thus, the method of controlling the opening and closing of the screen door according to the speed is usefully used when it is difficult to stop the train in the normal position. This method is useful when various types of trains stop on the platform. In this case, the stopping position differs for each type of train, but if it is impossible to set a good section by adjusting the angle of the train sensor at the beginning of the train traveling method and the train sensor at the tail, it will pass The above-described train speed is used to distinguish whether the train is a train or a train whose position is adjusted to enter a good section. For example, when an attempt is made to stop at the normal position but the vehicle stops past the train detection sensor at the head, the train is moved further back to position the train in a good section. Although the moving speed at this time is very slow, it should not be determined that the current train is a train that simply passes through the platform simply by sensing the train with the train sensing sensor at the top. In order to make a correct determination in this way, the train speed is confirmed, and if the speed is sufficiently low, it is determined that the train is not a passing train but a train whose position is adjusted to stop at the normal position.

  At this time, the screen door starts to close after the train starts to depart from the platform. At this time, whether or not the departure has started is determined using information collected by the train sensing sensor array. At this time, the screen door starts to close after the train has completely departed from the platform. At this time, it is determined using the information collected by the train sensing sensor array whether the platform is completely deviated.

  At this time, the screen door may be allowed to open only when a train is not detected by the train detection sensor at the rear of the sensor array.

  At this time, in the first step, a train is not detected by the train detection sensor at the head of the sensor array and the train detection sensor at the tail of the sensor array, and at least a part of the remaining train detection sensors of the sensor array is continuously detected. If the train is detected by all the train detection sensors, the vertical opening / closing screen door is allowed to open.

  At this time, when the train is detected by the train detection sensor at the top, the vertical open / close screen door is allowed not to open.

  At this time, a distance between the train detection sensor at the head portion and the train detection sensor at the tail portion is longer than the length of the train.

  At this time, the train detection sensor at the head and the train detection sensor at the tail detect the direction having a predetermined angle with respect to the vertical direction of the extension direction of the platform.

  At this time, the platform screen door system including the screen door includes a pair of elevating means including a drive unit that controls the elevating of the screen door, and an object in the front space of the screen door or an object in the rear space of the screen door. And a sensor for sensing. When an external force acting on the screen door is detected, whether to allow manual opening / closing of the screen door is determined according to whether an object in the front space or the rear space is detected. And

  At this time, when the screen door is in the stop mode, a) the driving unit is basically in a locked state, and b) when an external force acting on the screen door is detected, an object in the rear space is detected. If it does, it has a mode which permits manual opening and closing by changing the drive part from a locked state to a release state.

  Alternatively, when the screen door is in the stop mode, a) the driving unit is basically in a release state, and b) an object is detected in the rear space when an external force acting on the screen door is detected. If there is not, it has a mode for prohibiting manual opening and closing by switching the drive unit from the released state to the locked state.

  At this time, the driving unit includes a closed coupling that is fixedly coupled to the clean door and adjusts the lifting and lowering of the screen door, a rotating member that rotates the closed coupling, and a motor that rotates the rotating member. It is characterized by.

  At this time, sensing an external force acting on the screen door is performed by sensing an induced voltage of the driving device generated by the external force.

  At this time, the external force acting on the screen door is detected by detecting the movement of a lever installed on the screen door.

  According to another aspect of the present invention, there is provided a vertical opening / closing platform screen door to which the above-described screen door control method can be applied.

  A screen door control method according to another aspect of the present invention is a method for controlling a screen door using a train sensing sensor array arranged along a length direction of a platform, the screen door being controlled at the top of the sensor array. When a train is detected by at least one of the train detection sensor and the rear train detection sensor, the screen door is not allowed to open if the speed of the train is equal to or higher than a predetermined speed. In this case, the screen door is not allowed to open only when the condition that the train is detected by at least one of the sensors other than the train sensor at the head and the train sensor at the tail is additionally satisfied.

  According to the present invention, a door opening / closing control technique of a new method for preventing a safety accident that may occur when operating a vertical opening / closing platform screen door is provided. One aspect of the present invention provides a technique for controlling when a platform screen door is allowed to open or close. In another aspect of the present invention, a control technique for controlling manual opening / closing of a vertical opening / closing platform screen door is provided.

FIG. 3 is a view showing a vertical opening / closing platform screen door according to an embodiment of the present invention; It is a figure which shows an example of the internal structure of the screen door shown in FIG. It is a figure which shows one Example in which the screen door shown in FIG. 1 was formed in rope shape. 1 is a view showing a vertical opening / closing platform screen door system according to an embodiment of the present invention; FIG. It is a figure which shows the structure of the obstacle detection sensor of the screen door by one Example of this invention. It is a figure which shows the example of the manual opening / closing scenario of the screen door by one Example of this invention. FIG. 6 is a diagram illustrating an obstacle sensor for a screen door according to another embodiment of the present invention. It is a figure which shows the structure of the screen door by other Example of this invention. It is the figure which looked down at the state where the train stopped on the platform where the platform screen door system by one example of the present invention was installed at the stop regular position. It is a figure explaining the structure for detecting the approach state of the train which approachs the platform by one Example of this invention. It is a figure explaining the structure for detecting the approach state of the train which approachs the platform by one Example of this invention. It is a figure explaining one Example of the direction of two sensors installed in both ends among the train detection sensors shown in FIG.10 and FIG.11. FIG. 6 is a diagram illustrating a train platform screen safety device according to another embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various forms different from each other. The embodiments described below are intended to complete the disclosure of the present invention and provide general knowledge. It is provided in order to fully inform those who have the scope of the invention. For convenience of explanation, the size of the component may be exaggerated or reduced in the drawings.

<Vertical opening and closing platform screen door>

  1A, 1B, 1C, and 1D are a perspective view, a front view, a bottom view, and a use state diagram of a vertical open / close platform screen door according to an embodiment of the present invention, respectively.

Referring to FIGS. 1A to 1D, a platform screen door according to an embodiment of the present invention includes a left rope elevating means 100L and a right rope elevating means 100R installed upright. An upper screen door 11 and a lower screen door 12 are installed between the left rope lifting means 100L and the right rope lifting means 100R. The upper screen door 11 and the lower screen door 12 are each formed of one or more ropes. The left rope elevating means 100L and the right rope elevating means 100R move the upper screen door 11 and the lower screen door 12 up and down, respectively.

  According to the embodiment, the ropes constituting the left rope lifting means 100L and the right rope lifting means 100R are extended to the left and right. In this case, auxiliary rope lifting / lowering means 100M for preventing the rope from hanging down is provided between the left rope lifting / lowering means 100L and the right rope lifting / lowering means 100R.

  In some embodiments, a horizontal frame 100U is disposed above the left rope lifting means 100L and the right rope lifting means 100R. The horizontal frame 100U enhances the structural stability of the platform screen door. An empty space is provided inside the horizontal frame 100U. In this empty space, mechanical components installed in the left rope elevating means 100L, the right rope elevating means 100R and / or the auxiliary rope elevating means 100M or Various cables or belts for connecting the electrical components to each other are arranged. Depending on the embodiment, a drive motor for raising and lowering the screen doors 11 and 12 may be arranged. Although FIG. 1A shows a form in which the auxiliary rope lifting / lowering means 100M stands upright on the platform, in another embodiment, the auxiliary rope lifting / lowering means 100M may be hung on the upper horizontal frame 100U.

  FIG. 1B shows a state in which movement of a person or the like is blocked by the upper screen door 11 and the lower screen door 12, and FIG. 1D shows that the upper screen door 11 and the lower screen door 12 are raised upward. This indicates a state in which movement of a person or the like is allowed. Hereinafter, FIG. 1B is expressed in a state where the platform screen door is “closed”, and FIG. 1D is expressed in a state where the platform screen door is “open”. When the train 701 arrives at the platform 500 as shown in FIG. 1D, passengers freely pass between the train 701 and the platform 500 unless the upper screen door 11 and the lower screen door 12 are raised. Can not do it.

  As shown in FIG. 1D, when the platform screen door is open, the upper screen door 11 and the lower screen door 12 are overlapped with each other at the upper portion of the platform screen door. In order to make the upper screen door 11 and the lower screen door 12 overlap with each other in this way, the left rope lifting means 100L and the right rope lifting means 100R have a lowering distance (or lifting speed) of the upper screen door 11 that is lower screen door. It is controlled to be smaller than 12 lifting distances (or lifting speeds). Further, the upper screen door 11 and the lower screen door 12 are spaced apart from each other in the horizontal direction as shown in the bottom view of FIG. 1C so that the upper screen door 11 and the lower screen door 12 overlap each other.

As shown in FIGS. 1A to 1D, the screen door is divided into an upper screen door 11 and a lower screen door 12, and the upper screen door 11 and the lower screen door are opened with the platform screen door open. Constructing 12 to overlap each other has the effect of reducing the overall height of the platform screen door. However, the present invention is not limited to such an embodiment. That is, the screen door may be configured without being divided into two or more upper and lower screen doors as described above. In this case, the overall height of the platform screen door is increased, but it is not necessary to separately control the upper screen door 11 and the lower screen door 12 as shown in FIGS. Has a simple internal configuration. Another possible method is to complete a vertical open / close platform screen door using three pairs of doors that move vertically.

<Example 1 of Internal Drive Assembly of Vertical Opening and Closing Platform Screen Door>

  FIG. 2A is a view showing an example of the internal structure of the left rope lifting / lowering means 100L shown in FIG. FIG. 2B is a view showing the structure of FIG. 2A viewed from the right side. FIG. 2C is a diagram showing an example of the internal structure of the right rope lifting / lowering means 100R shown in FIG. FIG. 2D is a diagram showing an example of the internal structure of the auxiliary rope lifting / lowering means 100M shown in FIG.

  Referring to FIG. 2A, the left rope lifting / lowering means 100 </ b> L includes an upper sprocket 14 and a lower sprocket 15 connected by a chain 20. A driving device 120 such as a rotary motor is connected to the lower sprocket 15. The driving device 120 rotates the upper sprocket 14 and the lower sprocket 15 together.

  The left rope lifting / lowering means 100L is provided with two rails 111 and 112 for guiding the left upper block 140L and the left lower block 130L, respectively. The left upper block 140L and the left lower block 130L are connected to the rotation shaft of the upper sprocket 14 by the second connector 152, respectively. The upper screen door 11 in FIG. 1A is connected to the left upper block 140L, and the lower screen door 12 in FIG. 1B is connected to the left lower block 130L.

  A counterweight 121 having a weight corresponding to the left upper block 140L and the left lower block 130L is connected to the rotation shaft of the upper sprocket 14. The driving load applied to the driving device 120 by the balance weight 121 is reduced.

  Referring to FIG. 3a (described later), the left upper block 140L is provided with two outer rotating pulleys 43 for attaching the outer wire rope 200H of the upper screen door 11 and the inner wire rope 201H. Seven inner rotating pulleys 42 are included. Similarly, the left lower block 130L includes two outer rotating pulleys 33 for mounting the outer wire ropes 200L of the lower screen door 12 and seven inner rotating pulleys 32 for mounting the inner wire ropes 201L. The number of rotating pulleys is changed according to the embodiment.

  Referring to FIG. 2B, the first pulley 150 and the second pulley 151 having a smaller diameter than the first pulley 150 rotate about the same axis as the upper sprocket 14. The first pulley 150 is connected to the left lower block 130L by the second connector 152, and the second pulley 151 is connected to the left upper block 140L by the other second connector 152. The counterweight 121 is connected to the upper sprocket 14 by the first connector 122 and moves in the opposite direction to the left upper block 140L and the left lower block 130L. The upper sprocket 14 is connected to the lower sprocket 15 by a chain 20, and the lower sprocket 15 is rotated by a driving device 120. The chain 20 forms a closed loop. When the lower sprocket 15 is rotated, the chain 20 is rotated, and the upper sprocket 14 is rotated by the rotation of the chain 20. The driving device 120 is controlled by the control unit 59.

  Referring to FIG. 2C, the right rope lifting / lowering means 100R has an internal structure corresponding to the left rope lifting / lowering means 100L. However, since the left upper block 140L and the left upper block 140R should be connected by wire ropes 200H, 200L, 201H, 201L, the right upper block 140R has a structure modified from the left upper block 140L. That is, the right upper block 140R includes two outer rotating pulleys 43 for mounting the outer wire rope 200H and six inner rotating pulleys 42 for mounting the inner wire rope 201H. The right lower block 130R has the same configuration as the right upper block 140R.

  Referring to FIG. 2D, the auxiliary rope elevating means 100M includes the first pulley 150, the second pulley 151, the first connector 122, the second connector 152, and the like shown in FIG. A counterweight 121 is included. Further, it includes auxiliary upper blocks 140M corresponding to the left upper block 140 and the right upper block 140R. Further, auxiliary lower blocks 130M corresponding to the left lower block 130L and the right lower block 130R are included.

  In the present specification, the screen doors 11 and 12 and the blocks 140L, 140R, 130L, and 130R have been described separately. However, it is understood that the two divided components can be combined and redefined as a “screen door”. .

<Configuration Example 1 of Vertically Openable Platform Screen Door>

  FIG. 3A is a diagram showing a state in which the outer wire ropes 200H and 200L and the inner wire ropes 201H and 201L are installed between the pair of rope elevating means 100R and 100L shown in FIG. FIG. 3A shows a state where the upper blocks 140L and 140R and the lower blocks 130L and 130R are lowered to block movement of a person or the like.

  Two types of wire ropes, an outer wire rope 200H and an inner wire rope 201H, are mounted between the left upper block 140L and the right upper block 140R. The outer wire rope 200 </ b> H is supported by four inner rotating pulleys 43 in total, and both ends thereof are fixedly connected by the first fastener 61. The inner wire rope 201H is supported by 13 inner rotating pulleys 42 in total, and both ends thereof are fixedly connected by the second fastener 62. The “upper screen door 11” described above is formed by the outer wire rope 200H and the inner wire rope 201H.

  In the same manner, two types of wire ropes, an outer wire rope 200L and an inner wire rope 201L, are also mounted between the left lower block 130L and the right lower block 130R. The “lower screen door 12” described above is formed by the outer wire rope 200L and the inner wire rope 201L.

  The outer wire ropes 200H and 201L are arranged outside the inner wire ropes 201H and 201L so as not to be twisted better than the inner wire ropes 201H and 201L or to have stronger elasticity. At this time, the outer wire ropes 200H and 200L are formed of the same material as the inner wire ropes 201H and 201L, but may be provided using thicker wires. Alternatively, the outer wire ropes 200H and 200L may be made of a material having a different elastic coefficient from the inner wire ropes 201H and 201L. That is, the outer wire ropes 200H and 200L and the inner wire ropes 201H and 201L are different types of wire ropes.

  FIG. 3b shows a state where the upper blocks 140L and 140R and the lower blocks 130L and 130R of the platform screen door shown in FIG. FIG. 3b further shows the auxiliary rope lifting / lowering means 100M disposed between the left rope lifting / lowering means 100L and the right rope lifting / lowering means 100R. The auxiliary rope lifting / lowering means 100M may be omitted depending on the embodiment.

<Example of a system using a vertically openable platform screen door>

  FIG. 4A is a view showing a vertical opening / closing platform screen door system according to an embodiment of the present invention. FIG. 4B is a diagram illustrating a state where the train is stopped in FIG.

  In the platform screen door system shown in FIG. 4A, six platform screen doors 1001 to 1006 are installed in succession on the platform screen door shown in FIG. 1A (a form in which the auxiliary rope lifting means 100M is omitted). Is. This system is used as a platform safety device for a total of six cars 701 to 706 as shown in FIG. 4B, for example. In the case of FIG. 4B, the left and right lengths of one platform screen door correspond to the left and right lengths of one train.

  On the other hand, unlike FIG. 4B, there is a possibility that a train whose left and right lengths are shorter or longer than the left and right lengths of one platform screen door will stop on this platform. In this case, if the stop position of this train is appropriately adjusted, the platform screen door system shown in FIG. 4 (a) not only provides safety for passengers located on the platform, but also passengers through the doors installed on this train. It can be seen that it is possible to completely control the access to and from.

<Example of vertical open / close type platform screen door equipped with object detection sensor>

  5 (a) and 5 (b) respectively show a platform screen door equipped with an object sensing sensor according to another embodiment of the present invention from the front (ie, platform side) and the back (ie, track side). FIG. FIGS. 5C and 5D show the platform screen door shown in FIG. 5A as viewed from the left side from A-A ′ and from the right side, respectively. FIG. 5E shows an example of a state where a train has arrived at the platform.

  The platform screen door 1001 shown in FIGS. 5A and 5B has a transmission front sensor (TX_FS), a reception front sensor (RX_FS), and a transmission rear in addition to the platform screen door shown in FIG. In this embodiment, a sensor (TX_BS) and a receiving rear sensor (RX_BS) are further provided. Here, “front” indicates the platform side, and “back” indicates the track side. FIGS. 5A and 5B show an embodiment in which the auxiliary rope elevating means 100M of FIG. 1A is omitted for convenience of explanation, and the upper screened 11 and the lower screen door 12 are provided. Shown in the open state on the upper side.

  The transmission front sensor (TX_FS) and the reception front sensor (RX_FS) are installed on the front surfaces of the left rope lifting means 100L and the right rope lifting means 100R, respectively. The transmission rear sensor (TX_BS) and the reception rear sensor (RX_BS) are respectively installed on the rear surfaces of the left rope lifting means 100L and the right rope lifting means 100R. When the transmission front sensor (TX_FS) transmits an object detection signal (df1) such as an infrared ray, the reception front sensor (RX_FS) receives the object detection signal (df1). If the reception front sensor (RX_FS) cannot detect this object detection signal (df1), it is between the transmission front sensor (TX_FS) and the reception front sensor (RX_FS), that is, the platform screen door. It is determined that there is an object like a person in front of.

  In the same manner, the rear sensor for transmission (TX_BS) and the rear sensor for reception (RX_BS) use the object detection signal (db1) to determine whether or not there is a human-like object behind the platform screen door. To do.

  In the above-described embodiment, the transmission front sensor (TX_FS) and the reception front sensor (RX_FS) are used to monitor whether or not an object is present in front of the platform screen door. In other embodiments, an infrared image is used. A sensor may be used. When an infrared image sensor is used, it is not necessary to install the sensor separately for a transmission sensor and a reception sensor, and a person having a body temperature can be distinguished. This is equally applicable to a sensor configuration for monitoring whether there is an object behind the platform screen door. In short, the present invention is not limited by the specific form of the sensor that senses whether or not an object is present on the front and rear surfaces of the screen door.

  The platform screen door 1001 shown in FIGS. 5A and 5B is used as a component of the platform screen door system shown in FIG.

<Example of manual open / close control scenario for vertical open / close platform screen door>

  The length in the left-right direction of the platform screen door described with reference to FIGS. 1 to 5 is several meters or more (for example, 10 m or 20 m). Therefore, since the length in the left-right direction of the upper screen door 11 and the lower screen door 12 described above can be several meters or more, it is necessary to reduce the weight of the upper screen door 11 and the lower screen door 12. It is necessary to provide a structure for improving the durability of the lower screen door 12. Therefore, the upper screen door 11 and the lower screen door 12 are preferably provided in a rope type as described above. However, in another embodiment, one or more of the upper screen door 11 and the lower screen door 12 may be formed in a plate type.

  By the way, when it is provided in the form of a rope of the upper screen door 11 and / or the lower screen door 12, a person located on the platform manually lifts it up with the rope of the upper screen door 11 or the lower screen door 12 closed. There is a possibility of trying. That is, the platform screen door may be manually opened and closed on the platform side. At this time, platform safety accidents can be prevented by preventing such attempts from being successful unless the platform screen door is manually permitted to open and close. There are various situations where it is allowed to manually open and close the platform screen door depending on the scenario. For example, it is provided as in a scenario shown in FIG. 6 (a) or (b) described later.

  6A and 6B are diagrams illustrating an example of a manual opening / closing scenario of a platform screen door provided by an embodiment of the present invention.

  In scenarios 1 and 2 shown in FIGS. 6A and 6B, four combinations of whether or not an object exists on the platform side and the track side are shown. The platform-side object is detected by the transmission front sensor (TX_FS) and the reception front sensor (RX_FS), and the track-side object is detected by the transmission rear sensor (TX_BS) and the reception rear sensor (RX_BS). Is done. If an object such as a person is sensed by this sensor, “sensed” is displayed, and if not sensed, “not sensed” is displayed.

  “Case 2” and “Case 4” in FIGS. 6A and 6B are states in which an object is detected on the line side. The situation where passengers try to escape emergencyly on a train stopped on the track side, or people who fall on the track try to blame the platform side corresponds to “Case 2” and “Case 4”. Therefore, in this case, it should be allowed to manually open and close the platform screen door regardless of whether there is an object on the platform side or not. Therefore, when the case is detected as “Case 2” and “Case 4”, the platform screen door is set in a released or unlocked state. Here, the release state means a state in which the rotation shaft of the driving device 120 can be freely rotated by an external force without being controlled by electric power as described with reference to FIG. 3B, for example. Here, the expression of bringing the platform screen door into the released state means that the above-described driving unit that drives the platform screen door is brought into the released state.

  In “Case 1”, an object is not detected on the track side, but an object is detected on the platform side. In this case, if the platform screen door is manually opened by allowing the platform screen door to be manually opened and closed, a person located on the platform side may fall on the track side and encounter an accident. Therefore, in “Case 1”, it is not necessary to allow the platform screen door to be manually opened and closed, and therefore the platform screen door is locked.

  “Case 3” in scenario 1 in FIG. 6A and “case 3” in scenario 2 in FIG. 6B show a case where no object is detected on both the platform side and the track side. In this case, it is determined that the person who manually opens and closes the platform screen door does not exist near the platform screen door, so that in “Case 3”, the platform screen door is locked or released (unlocked) in any state. Set to state.

  Scenario 1 and scenario 2 described above are for illustrative purposes, and different scenarios or other scenarios more specific by adding other conditions to the conditions of scenario 1 and scenario 2 may be presented.

  In addition, the first structure of the above-described form is provided to lock or unlock the platform screen door according to a specific scenario, and the second structure is provided to lock or release the platform screen door together. To do. At this time, a priority order is set between the first structure and the second structure.

<Example 1>

  Hereinafter, a platform screen door according to an embodiment of the present invention will be described with reference to FIGS.

  The platform screen door according to an embodiment of the present invention includes one or more screen doors 11 and 12 that are opened and closed up and down, a pair of lifting means 100L and 100R that controls the lifting and lowering of the screen doors 11 and 12, and the screen doors 11 and 12. Sensors (e.g.) for sensing objects in the front and rear spaces. At this time, the platform screen door allows the lifting means 100L and 100R to manually open and close the screen doors 11 and 12, and whether or not an object is detected in the front space and whether or not an object is detected in the rear space. Whether to allow manual opening / closing of the screen doors 1 and 12 is determined according to the combination.

  At this time, the sensors include front sensors (TX_FS, RX_FS) and rear sensors (TX_BS, RX_BS) of the lifting means 100L, 100R. However, the present invention is not limited to this. For example, as shown in FIGS. 7A and 7B, the sensor is formed of two components, a front sensor (FS) and a rear sensor (BS). Alternatively, the sensor may be formed of a single sensor (IS) that senses all front and rear as shown in FIGS.

  FIGS. 7A and 7B show examples in which the sensor configuration shown in FIGS. 5A to 5E is modified. A front sensor (FS) and a rear sensor (BS) are installed on the front and rear surfaces of the upper frame 100U of the platform screen door 1001, respectively. The front sensor (FS) senses an object on the platform side (range θ °) with respect to the platform screen door 1001, and the rear sensor (BS) senses an object on the track side (range θ °) with respect to the platform screen door 1001. To do. In FIGS. 7A and 7B, the front sensor (FS) is not separated for transmission and reception. For example, when the front sensor (FS) is configured by an optical sensor such as an infrared sensor. Since it can be determined whether or not a person exists using the color temperature output from the front sensor (FS), it can be understood that such a configuration can be realized. The same applies to the rear sensor (BS).

  FIGS. 7C and 7D show another example in which the configuration of the sensor shown in FIGS. 5A to 5E is modified. One sensor (IS) is installed under the upper frame 100U of the platform screen door 1001. The sensor (IS) senses an object on the platform and the track side (range 2θ °) with reference to the platform screen door 1001. In (c) and (d) of FIG. 7, the sensor (IS) is not classified for transmission and reception, but is not classified for front and rear. However, for example, when the sensor (IS) is composed of an optical sensor such as an infrared diagram sensor, it is determined whether or not there is a person in the front and rear using the color temperature output from the sensor (IS). Since it can be determined, it can be seen that such a configuration can be realized.

  Any other sensor that senses by separating the platform-side space object and the track-side space object from the platform screen door surface can be used as a sensor for the present invention.

  At this time, the platform screen door allows manual opening and closing if it is detected that an object is present in the rear space. Alternatively, if the presence of an object in the front space is sensed and the absence of the object in the rear space is sensed, the manual opening / closing is prohibited. Such operation control is performed by the control unit 59. The controller 59 communicates with another central controller provided separately from the platform screen door. For example, the central control device may be the main control device 43 shown in FIG. When the control unit 59 senses an external force applied to the drive device 120 when the drive device 120 is in a stopped state, the control unit 59 controls the drive device 120 so that the drive device 120 resists the external force.

  At this time, when the driving device 120 maintains the stopped state, the vertical positions of the screen doors 11 and 12 are not changed. Such a result can be obtained, for example, by the structure of the rope lifting apparatus 100L according to the embodiment of the present invention shown in FIGS. At this time, the driving device 120 may be a rotary motor, and the external force may be an external torque applied to the rotary shaft of the rotary motor. Alternatively, the driving device 120 may be a linear motor, and the external force may be a force applied to an operating part of the linear motor.

  At this time, the controller 59 senses an induced voltage of the driving device 120 generated by the external force. For example, if the drive device 120 is a rotary motor, the rotor of the rotary motor rotates when a voltage is applied to a winding wound around the rotary motor. Conversely, when the rotor of the rotary motor is forcibly rotated, an induced voltage is generated in the winding. That is, the rotary motor is diverted as a generator. The same applies to the linear motor described above. Therefore, as described above, it is well known in the electrical description field that when an external force is applied to the operating part (or the rotor) of the driving device 120, an induced voltage is generated in the winding wound around the driving device 120. It is applicable to the present invention.

  At this time, the control unit 59 drives the driving device 120 in the mode in which the screen doors 11 and 12 are raised and lowered, and when the external force is not applied in the mode in which the screen doors 11 and 12 are maintained in the stopped state, When the external force is applied in a mode in which the drive is released and the screen doors 11 and 12 are maintained in the stopped state, the drive device 120 is controlled so that the drive device 120 resists the external force. Here, “releasing” means that no electric power is consumed to operate the operation unit (or the rotor) of the driving device 120.

<Example 2>

  Hereinafter, a platform screen door according to another embodiment of the present invention will be described with reference to FIGS.

  A platform screen door according to another embodiment of the present invention includes one or more screen doors 11 and 12 that are opened and closed up and down, and a pair of screen doors that are installed on the left and right sides of the screen doors 11 and 12 to control the raising and lowering of the screen doors 11 and 12. Lifting means 100L, 100R. The lifting means 100L and 100R are fixedly coupled to the screen doors 11 and 12, and are connected to the closing doors 20L and 20S for adjusting the lifting and lowering of the screen doors 11 and 12, and the rotating members 14L and the rotating members 14L and 20S are rotated. 14S, 15L, 15S, a driving device 120 that rotates the rotating members 14L, 14S, 15L, 15S, and a control unit 59 that controls the operation of the driving device 120 are included. When the controller 59 senses an external force applied to the drive device 120 when the drive device 120 is in a stopped state, the controller 59 controls the drive device 120 so that the drive device 120 resists the external force.

  In addition, it can be understood that the other components described in the first embodiment and the mode for carrying out the invention may be applied in combination with the platform screen door of the second embodiment.

<Example 3>

  Hereinafter, a platform screen door according to another embodiment of the present invention will be described.

  The platform screen door includes one or more screen doors 11 and 12 that are opened and closed up and down, and driving units 59, 120, 20L, 20S, 14L, 14S, 15L, and 15S that control the raising and lowering of the screen doors 11 and 12. A sensor (RX_FS, RX_BS, TX_FS, TX_BS, FS, BS, IS) for sensing an object in the front space or an object in the rear space of the pair of lifting means 100L, 100R and the screen doors 11, 12 is included. At this time, if an external force acting on the screen doors 11 and 12 is detected, whether the screen doors 11 and 12 can be manually opened or closed is determined according to whether or not an object in the front space or the rear space is detected. decide.

  At this time, the state of the screen door is divided into a stop mode and a motion mode. The case where the screen door is moved up or down to change the open / closed state of the screen door is referred to as a movement mode, and the state in which the screen door has already been lifted or has already been lowered is passed in the stop mode.

  When the screen doors 11 and 12 are in the stop mode, a) the driving unit is basically in a locked state, and at this time, b) the rear space when an external force acting on the screen doors 11 and 12 is detected. When the object is detected, the driving unit is switched from the locked state to the released state to allow manual opening and closing. At this time, the stop mode means a state in which the screen door has already been lowered.

  Here, the above-described locked state is a state in which, for example, when the drive unit includes a rotary motor, the rotary motor is actively controlled so that the rotary shaft does not rotate even when an external force is applied to the rotary shaft of the rotary motor. Means. If the drive unit includes a linear motor, it means a state in which the operation unit is actively controlled so as not to move relative to the fixed unit even when an external force is applied to the operation unit of the linear motor.

  Here, the release state refers to a state opposite to the lock state described above. For example, in the case of a rotary motor, when the external force is applied to the rotary shaft, the rotary shaft is freely rotated by the external force. In the case of a linear motor, when the external force is applied to the operating portion, the operating portion is moved against the fixed portion. It means a state that moves freely by external force.

  In contrast, when the screen doors 11 and 12 are in the stop mode in this embodiment, a) the driving unit is basically in a released state, and b) an external force acting on the screen doors 11 and 12 is sensed. When an object is not detected in the rear space, the drive unit is switched from the release state to the lock state, thereby prohibiting manual opening and closing.

  In this embodiment, when an external force acting on the screen doors 11 and 12 is detected, the drive unit controls the screen doors 11 and 12 so as not to descend at least.

  In this embodiment, the external force acting on the screen doors 11 and 12 is sensed by sensing an induced voltage generated by the movement of the driving unit (rotating shaft) of the driving device by the external force. Is called.

  In addition, sensing an external force acting on the screen doors 11 and 12 is performed by sensing a movement of a lever installed on the screen doors 11 and 12.

  An example of such a lever can be identified from the other platform screen door example shown in FIG. The upper screen door 11 and the lower screen door 12 of FIG. 8 are the rope-shaped screen doors shown in FIG. 3a. Further, a lever 310 is additionally installed on the lower screen door 12. An operating part 320 including a sensor is formed at both ends of the lever 310. When a person pulls the lever 310 upward, the operating unit 320 moves, and a sensor signal indicating that an external force is applied to the screen door by a sensor included in the operating unit 320 is generated. This sensing signal is transmitted to the drive unit described above. The sensor may be a switch having an electrical contact, or may be formed using a piezoelectric element that generates an electrical signal in response to shape deformation.

  As described above, there are various methods for sensing the external force acting on the screen doors 11 and 12, but the present invention is not limited by such a specific sensing method.

  The left and right open / close type screen door according to the prior art is provided with a mechanical lever that can be operated by a person on the track side in an emergency, and the screen door is opened and closed when this lever is operated. At this time, since the left and right open / close type screen door has a sealed structure in which the track side and the platform side are separated from each other by the screen door, the mechanical lever can be operated only by a person on the track side, so it is operated only in an emergency. Is done.

  However, since the rope-like screen door as in one embodiment of the present invention has a structure in which both side spaces of the screen door are open to each other, it is difficult to provide a mechanical lever that can be operated only by a person on the track side. Therefore, if the object detection sensor and the algorithm according to the embodiment of the present invention are used, a method capable of entering in the manual opening / closing mode in an emergency is provided.

  The platform screen door provided by an embodiment of the present invention is used in a train platform for selectively blocking between a track and a platform according to a situation, or a person at a boundary between a motorway and a sidewalk. Used to selectively block traffic according to the situation. However, the application of the platform screen door can be used in various situations other than the example described above.

<Timing for starting the vertical open / close platform screen door>

  FIG. 9 is a view from above of a state where a train is stopped at a normal stop position on a platform on which a platform screen door system according to an embodiment of the present invention is installed. The platform screen door system 20 shown in FIG. 4A is installed on the platform 50, and the trains 71 to 76 pass along the track 80 on the right side (P). Train sensing sensors 1 to 7 are installed at the boundary positions between the vertical opening / closing type screen safety devices 20 to 26 included in the platform screen door system 20. At this time, the train detection sensors 1 to 7 may be installed in the horizontal frame 100U at the boundary position, installed in the rope lifting means 100L and 100R, or installed directly on the platform. In this case, in this specification, the train detection sensor 1 and the train detection sensor 7 located at the outermost part are referred to as a leading train detection sensor 1 and a rear train detection sensor 7, respectively. In FIG. 9, trains 71 to 76 are stopped in accordance with the stop normal position 88 of the train. Each of the train detection sensors 1 to 7 functions to detect whether a train exists in a direction perpendicular to the extension direction of the platform. The train detection sensors 1 to 7 are referred to as a sensor array.

  FIG. 10A shows the output results of the train detection sensors 1 to 7 in accordance with the positions of the trains 71 to 76, and is for explaining an embodiment of the present invention. In FIG. 10A, values 1 to 7 in the first row mean the train detection sensors 1 to 7, respectively. In FIG. 10A, “O” indicates that the train is detected by the corresponding train detection sensor, and “X” indicates that the train is not detected.

  (B), (c), (d) and (e) of FIG. 10 show the positions of the trains corresponding to the approach state, unachieved state, good state and excess state shown in (a) of FIG.

  In FIG. 10B, when the trains 71 to 76 start to enter the platform 50, only the rear train detection sensor 7 outputs a signal that the train has been detected. At this time, the screen door opening / closing control apparatus according to the embodiment of the present invention determines that the train is approaching.

  In FIG. 10C, the trains 71 to 76 enter the platform and output signals that the trains are detected by the other train detection sensors 2 to 7 excluding the train detection sensor 1 at the head. Another screen door opening and closing control device according to an embodiment of the present invention is a series of train detection sensors including a rear train detection sensor 7 without a signal indicating that a train is detected by the front train detection sensor 1. Then, when the signal that the train is detected is output, it is determined that the screen door should not be allowed to open yet.

  FIG. 10D shows a state where all the trains 71 to 76 have entered the platform 50 and stopped at the stop normal position 88. At this time, the train detection sensor 1 at the head and the train detection sensor 7 at the tail do not output a signal that the train is detected, and the other train detection sensors 2 to 6 output a signal that the train is detected. . In the screen door opening / closing control apparatus according to the embodiment of the present invention, the front train detection sensor 1 and the rear train detection sensor 7 do not output a signal that a train is detected, and the remaining train detection sensors 2 to 6 are output. If some of the continuous train detection sensors output a signal that a train has been detected, it is determined that the screen door may be allowed to open.

  FIG. 10E shows a state where the trains 71 to 76 have entered the platform 50 and have stopped beyond the stop normal position 88. At this time, the rear train detection sensor 7 does not output a signal that a train has been detected, and the other train detection sensors 1 to 6 output signals that a train has been detected. The screen door opening / closing control device according to the embodiment of the present invention determines that the opening of the screen door should not be allowed when a signal that the train is detected by the train detection sensor 1 at the head is output.

  FIG. 11A shows the output results of the train detection sensors 1 to 7 according to one embodiment of the present invention corresponding to the positions of different types of trains 171 to 174 from FIG. 10A. (B), (c), (d), (e), and (f) in FIG. 11 are the approach state, unachieved state, good 1 state, good 2 state, and excess state shown in FIG. 11 (a), respectively. The position of the train corresponding to is shown.

  Since the trains 171 to 174 to which the algorithm of FIG. 11 (a) is applied are shorter than the trains 71 to 76 shown in FIG. 10 (a), the output results of the train detection sensors 1 to 7 are shown in FIG. 11 (a). Is different.

  In FIG. 11B, when the trains 171 to 174 begin to enter the platform, only the rear train detection sensor 7 outputs a signal that the train has been detected. In this case, the screen door according to the embodiment of the present invention determines that the train is approaching by the opening / closing control device.

  In (c) of FIG. 11, the trains 171 to 174 enter the platform 50 and output signals that the train is detected by the other train detection sensors 4 to 7 except for the train detection sensor 1 at the head. In the screen door opening / closing control apparatus according to the embodiment of the present invention, a train detection sensor 1 including a rear train detection sensor 7 does not output a signal that a train is detected by the train detection sensor 1 at the head, and trains are detected by a series of train detection sensors 7. If a signal indicating that the screen door is detected is output, it is determined that the screen door should not yet be allowed to open.

  FIG. 11D shows a state where all the trains 171 to 174 have completely entered the platform 50. At this time, the train detection sensor 1 at the head and the train detection sensor 7 at the tail do not output a signal that the train is detected, and the other train detection sensors 3 to 6 output a signal that the train is detected. . In the screen door opening / closing control apparatus according to the embodiment of the present invention, the front train detection sensor 1 and the rear train detection sensor 7 do not output a signal that a train is detected, and the remaining train detection sensors 2 to 6 are output. If at least some of the continuous train detection sensors 3 to 6 output a signal that a train has been detected, it is determined that the screen door may be allowed to open. At this time, the trains 171 to 174 are not yet stopped at the stop normal position 88, but the trains 171 to 174 are all in the state of entering the platform 50, so that the screen doors may be allowed to open. Judge that there is.

  FIG. 11E shows a state in which all the trains 171 to 174 have entered the platform 50 and stopped at the stop normal position 88. At this time, the train detection sensor 1 at the head and the train detection sensor 7 at the tail do not output a signal that a train is detected, and the other train detection sensors 2 to 5 output a signal that a train is detected. . In the screen door opening / closing control apparatus according to the embodiment of the present invention, the front train detection sensor 1 and the rear train detection sensor 7 do not output a signal that a train is detected, and the remaining train detection sensors 2 to 6 are output. If at least some of the continuous train detection sensors 2 to 5 output a signal that a train has been detected, it is determined that the screen door may be allowed to open.

  FIG. 11 (f) shows a state where the trains 171 to 174 have entered the platform 50 and stopped after exceeding the stop normal position 88. At this time, the rear train detection sensor 7 does not output a signal that a train has been detected, and the other train detection sensors 1 to 5 output signals that a train has been detected. The screen door opening / closing control device according to the embodiment of the present invention determines that the opening of the screen door should not be allowed when a signal that the train is detected by the train detection sensor 1 at the head is output. If the signal that the train is detected by the head train detection sensor 1 is output with the screen door opened once, the screen door opening / closing control device prepares to close the screen door. That is, the screen door is allowed to close.

  As shown in FIG. 10 (a) and FIG. 11 (a) through the embodiment of the present invention, the screen door opening / closing control apparatus according to the embodiment of the present invention The detection sensor 1 and the rear train detection sensor 7 do not output a signal that a train has been detected, and other train detection sensors 2 between the front train detection sensor 1 and the rear train detection sensor 7. The screen door is allowed to open when a signal indicating that a train has been detected is output by at least some of the continuous train detection sensors 1 to 6.

  As described with reference to FIGS. 10 and 11, when the train stops according to the stop position, the leading train detection sensor 1 and the trailing train detection sensor 7 do not output a signal that the train is detected. In order to achieve this, the configuration as shown in FIG. 12A or 12B is used.

  FIG. 12A shows a configuration in which the distance L2 between the leading train detection sensor 1 and the trailing train detection sensor 7 is larger than the length L1 of the train that stops on the platform 50. When the configuration shown in FIG. 12A is used, the embodiment described with reference to FIGS. 10A to 11F can be implemented.

  FIG. 12B shows a configuration in which the distance L2 between the leading train detection sensor 1 and the trailing train detection sensor 7 is substantially the same as the length L1 of the train that stops at the platform 50. At this time, if the leading train detection sensor 1 and the trailing train detection sensor 7 sense a direction perpendicular to the track 80, all train detection sensors detect the train if the train stops at the normal position. Therefore, the embodiment described with reference to FIGS. 10A to 11F cannot be implemented. Therefore, when the configuration as shown in FIG. 12B is used, as shown in FIGS. 12C and 12D, the leading train detection sensor 1 and the trailing train detection sensor 7 are connected to the line 80. It is installed so as to incline outward at a predetermined angle with respect to a direction perpendicular to the direction. Alternatively, it can be seen that the apparatus can be configured to sense the outer direction as shown in FIGS. 12C and 12D without physically having the predetermined angle.

  In another embodiment different from FIG. 10 and FIG. 11, the train detection sensor 1 at the head does not output a signal that a train is detected, and other train detection sensors 2 to 2 except for the train detection sensor 1 at the head. The screen door is allowed to open under a first condition in which a signal indicating that a train has been detected is output by at least some of the plurality of continuous train detection sensors 7. That is, the first condition also includes a case where a signal indicating that the train is detected by the rear train detection sensor 7 is output. In the case of the first condition, it is determined that the train has arrived at the platform 50, and when the train arrives at the platform, the speed is reduced, so that it is before the train stops at the normal position of the platform. Even if the screen door is allowed to open, the risk of a safety accident is not great.

  However, there is a possibility that the train passes without stopping on the platform 50. At this time, when the opening of the screen door is permitted under the first condition, the train passes at a high speed, so that the risk of a safety accident is high. Accordingly, whether the screen door can be opened or not is determined by applying the following second condition to the first condition. That is, the second condition relates to whether the speed of the train is equal to or lower than a preset first speed. If the first condition and the second condition are satisfied at the same time, it is determined that the train is reducing the speed while entering the platform 50, and therefore the train is expected to stop at the platform 50 and the screen door is allowed to open. .

  At this time, the train speed is measured using the plurality of train detection sensors 1 to 7 described above. That is, for example, the distance between the train sensor 6 and the train sensor 7 is a value known in advance, and the train is used to know the value of the difference between the times when the train is detected by the train sensor 6 and the train sensor 7. The speed of can be calculated. Such a calculation is performed by a processing device such as the main control device 43 shown in FIG.

  A part that executes an algorithm for controlling the opening and closing of the screen door using the conditions shown in FIGS. 10A and 11A is included in the main control device 43 shown in FIG. 13, for example. Further, a part that executes an algorithm for controlling whether the screen door is manually opened or closed using the two scenarios shown in FIG. 6 is, for example, the main control device 43 or the individual control teams 31 to 36 shown in FIG. 2 is included in the control unit 59 shown in FIG.

  FIG. 13 illustrates a train platform screen safety device according to another embodiment of the present invention. The train platform screen safety device according to FIG. 13 includes screen safety devices 21 to 26, individual control teams 31 to 36, train detection sensors 1 to 7, a platform investigation team 41, a crew investigation team 42, and a main control device 43. The The main control device 43 collects the detection results from the train detection sensors 1 to 7 and transmits a command for controlling the driving of the screen safety devices 21 to 26 to the individual control members 31 to 36. The individual control groups 31 to 36 individually control the screen door driving devices provided in the screen safety devices 21 to 26, respectively.

  The train detection sensor described above may be, for example, an optical sensor or a directivity sensor that can be detected only in a specific direction.

<Drop start timing of vertical open / close type platform screen door>

  One embodiment of the present invention relates to a timing for further closing the opened screen doors 11 and 12, that is, a lowering timing when a train stopped on the platform further departs.

  Screen safety devices are primarily intended to prevent platform waiters from being injured by the train. Such an injury mainly occurs when the train enters the platform, and when the train that has stopped on the platform leaves the platform, the risk of injury is relatively small because the train is relatively slow.

  The screen door according to an embodiment of the present invention may be configured in a rope shape as shown in FIGS. 1A to 1D, but unlike the above, the screen door is made of a hard plate material. It may be constituted by. Hereinafter, the reason why a plate-like material is necessary will be described.

  When constructed in the form of a rope, the rope tension must be sufficiently large to keep the horizontal displacement of the rope small. As a result, in order to support this tension, there is a limitation that the rigidity of the rope lifting means 100L and 100R should be sufficiently ensured. Therefore, as a method for relaxing such a restriction, the screen door may be made of a hard plate-like material instead of a rope. If the plate-shaped material is used, the above-described tension is not generated. However, if the up / down open / close screen door closes at the same time as or earlier than the train door, the passenger may be forced to board the train forcibly while the up / down open screen door is lowered. Therefore, in one embodiment of the present invention, after the train door is completely closed, the up-down opening / closing screen door starts to descend. In this way, passengers do not try to board forcibly because the platform waiter has confirmed that the train doors have been completely closed.

  Such a screen door opening / closing control system is useful not only for the plate-shaped screen door described above but also for a rope-shaped screen door.

  On the other hand, when the up-and-down opening and closing screen door is configured in a rope shape, the up-and-down opening and closing screen is between the first time point when all the entrances and exits of the train are closed and the second time point when the train completely departs from the platform. There is a case where the door is moving downward. At this time, if a person's body part is pinched between ropes and cannot be pulled out well, there is a risk that the projecting part of the running train will cause a major obstacle. In order to prevent such a safety accident, in a preferred embodiment of the present invention, the lowering start time of the up / down screen door is set after the train completely deviates from the platform. Such a setting is useful even when the up / down screen door is provided in a hard and heavy plate shape that is not rope-like. This is because when a part of the body is caught in the space between the descending plate-shaped screen door and the running train, there is a risk of a personal name accident.

  For vertically open platform screen doors installed on platforms where various trains stop, set the time when the screen door starts to descend after the time when the train starts, not after all the train doors are closed. Is more preferable. This is because there is a possibility that all types of trains that stop on this platform may not be able to transmit all information about whether the doors of the trains can be opened or closed to the screen door opening / closing control unit of the vertical opening / closing type screen door. Whether the train has departed from the platform is checked using the above-described train detection sensors 1 to 7. That is, when the train starts to further depart on the platform, the train detection sensors 1 to 7 measure the train speed by the method described above. Thus, it can be seen whether the train has started to depart from the platform and whether it has deviated completely from the platform. Train speed can be measured by various other techniques.

  On the other hand, a passenger detection sensor is installed on the screen door. Passenger sensing sensors provide data for determining situations in which a passenger may be injured by a screen door. When such a situation occurs, the screen door control unit takes measures to prevent injury.

  The screen door is provided with a sensor for preventing the screen door from being illegally opened and closed. In other words, the screen door may be kept closed for the safety of passengers, but such a situation is ignored and a situation in which the screen door is forcibly opened is detected. When such a situation occurs, the screen door controller maintains the screen door closed.

  Regardless of the use of the passenger detection sensor, in one embodiment of the present invention, when the screen door opens while a train arrives, the screen door opens regardless of the output of the passenger detection sensor.

  Regardless of the development motive of the present invention, it can be seen that the above-described technique of the present invention can be applied to the case where each door of the vertical opening / closing type platform screen door is a plate type. Therefore, it is understood that the vertical opening / closing door of the present invention is not limited by the specific material, pattern, shape, or the like.

11: Upper screen door 12: Lower screen door 14: First rotating member, sprocket
14L: First upper rotating member 14S: Second upper rotating member
115: second rotating member, sprocket 15L: first lower rotating member 15S: second lower rotating member 20: closed-type coupling tool, chain 20L: first closed-type coupling tool 20S: second closed-type coupling tool 59: control unit 100L: Left rope lifting / lowering means 100R: Right rope lifting / lowering means 120: Driving device (rotary motor, linear motor)
150: First pulley 151: Second pulley 200H, 200L: Outer wire rope 201H, 201L: Inner wire rope TX_FS: Transmission front sensor RX_FS: Reception front sensor TX_BS: Transmission rear sensor RX_BS: Reception rear sensor FS: Front sensor BS: Rear sensor IS: Sensor

Claims (8)

One or more screen doors that open and close;
Elevating means including a drive unit for controlling elevating of the screen door;
A sensor adapted to sense one or more of an object in the front space of the screen door and an object in the rear space of the screen door;
A control unit for controlling the operation of the driving unit;
Including
The controller is configured to determine whether an object in the front space is sensed and whether an object in the rear space is sensed when an external force acting on the screen door is sensed. A screen safety device configured to determine whether or not the manual opening / closing of the screen door is permitted based on a combination of the second results.   The screen safety device of claim 1, wherein the screen door is formed of one or more ropes. The control unit includes a stop mode and a mode allowing manual opening and closing,
When the control unit is in the stop mode,
(A) The driving unit is basically in a locked state;
(B) When the control unit detects an external force acting on the screen door, the control unit releases the driving unit from the locked state when an object in the rear space is detected. The screen safety device according to claim 1, wherein the screen safety device is switched to a mode allowing the manual opening and closing by switching to a release state. The control unit includes a stop mode and a mode for prohibiting manual opening and closing,
When the control unit is in the stop mode,
(A) The driving unit is basically in a release state,
(B) When the controller detects an external force acting on the screen door, the controller switches the driving unit from the release state to the locked state when no object is detected in the rear space. The screen safety device according to claim 1, wherein the screen safety device is switched to a mode in which the manual opening / closing is prohibited.   3. The screen safety device according to claim 1, wherein when the external force acting on the screen door is sensed, the drive unit controls the screen door not to descend. 4.   The drive unit includes a closed connection coupler that is fixedly coupled to the screen door and adjusts raising and lowering of the screen door, a rotating member that rotates the closed connection coupler, and a driving device that rotates the rotary member. The screen safety device according to 1.   The screen safety device according to claim 6, wherein sensing an external force acting on the screen door is performed by sensing an induced voltage of the driving device generated by the external force. The screen safety device according to claim 6, wherein sensing an external force acting on the screen door is performed by sensing a movement of a lever installed on the screen door.