JP2011121768A - Abnormal state detecting device, elevator control device, and escalator control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively detect an abnormal state in a user transfer device in an abnormal state detecting device. <P>SOLUTION: The abnormal state detecting device 30 detects an abnormal state in an elevator which is the user transfer device. The abnormal state detecting device 30 includes a power generation plate 32 generating an output voltage rising in accordance with a rise in power added continuously, and a determining part determining whether the abnormal state occurs or not with the use of a temporal change in the output voltage of the power generation plate 32. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an abnormal condition detection device that detects an abnormal condition in a user transfer device, and an elevator control device and an escalator control device that include the abnormal condition detection device.

  Conventionally, in user transport devices such as elevators and escalators, it is necessary to prevent a part of the body, such as a user's limbs, clothes or luggage from being pulled in, and means for preventing the pulling in Is considered. For example, an elevator car has a car door that opens and closes the car doorway and two door pillars that are arranged on the left and right sides of the car doorway, but the car door opens from a closed state. It is necessary to prevent a part of the body such as a user's finger from being caught in the gap between the car door and the entrance / exit post when moving to. For this reason, for example, as described in Patent Document 1, overload detection means for monitoring the load of torque applied to the door during door driving and detecting overload is provided in the door control device for the car door. It is considered that after receiving a load signal, the door is stopped and then the door is reversed in the direction opposite to the driving direction before the stop.

  In the escalator, a plurality of steps are movably supported by transfer means provided on the truss, and railings are provided on both sides of the steps. In addition, on the upper surface of the balustrade, there is a moving handrail that moves as the step moves, and on the stepboard side of the deck board provided on the lower side of the balustrade, a skirt guard for covering the transfer means is provided. Yes. Usually, the skirt guard is provided with a gap between both ends of the step so as not to hinder the movement of the step. However, it cannot be said that there is no possibility that the user's shoes, luggage, or the like may be caught in the gap between the step and the skirt guard when the user is positioned at the left and right edge of the step. Usually, a colored warning band such as yellow is provided on the side edge of the step, but if a user accidentally appears in this warning band and the shoes are made of rubber, the skirt guard It cannot be said that there is no possibility that shoes will be caught in the gap with the steps. On the other hand, when a limit switch, which is a mechanical means, has been placed on the back side, which is the transfer means side, of a part of the skirt guard, and the skirt guard that faces the limit switch has been pinched. It is considered that the limit switch is pushed to stop the escalator drive.

Further, in the escalator, a moving handrail pull-in port, which is an opening into which the moving handrail enters, is provided in the vicinity of the floor surface of the end side deck board provided at both ends of the truss in the longitudinal direction. . With this end-side deck board, there is no possibility that a child or other user will be able to draw a part of the body such as a finger, clothes, luggage, etc. into the gap between the moving handrail and the entrance. I can't say that. For this reason, conventionally, a limit switch, which is a mechanical means, is arranged on the back side of the end side deck board, and when the force is applied to the periphery of the moving handrail pull-in port, the limit switch is pushed to stop the driving of the escalator. It is considered to do so.
In addition to Patent Document 1, there are Patent Documents 2-4 as prior art related to the present invention.

JP 2000-351559 A JP 2003-187378 A JP-A-8-168272 Japanese Utility Model Publication No. 7-30558

  However, in the case of the above-described user transfer device such as an elevator, there is room for improvement in terms of effectively preventing a user disaster. For example, when an overload detection means is provided in an elevator to prevent pinching, the overload detection means does not detect direct pinching, and there is no possibility that the overload detection means will fail. Therefore, it is desired to realize another means for preventing pinching. In addition, when the door is opened and closed, not only between the entrance / exit pillar of the car and the car door, but also the side of the landing three-sided frame placed on the left and right of the entrance / exit on the landing side and the landing door It cannot be said that there is no possibility that the gap will occur in the same manner. Thus, there is room for improvement in terms of effectively preventing user disasters, and realization of an apparatus that effectively detects abnormal situations is desired.

  Also, in the escalator, in order to prevent the gap between the step and the skirt guard from being caught, when the limit switch is arranged behind the skirt guard as described above, it faces the limit switch of the skirt guard. There is a possibility that pinching can be detected only between a part to be performed and a step. In addition, since the limit switch operates even if it is momentarily pressed by mistake, there is room for improvement in terms of accurately detecting pinching. Thus, there is room for improvement in terms of effectively preventing user disasters, and realization of an apparatus that effectively detects abnormal situations is desired.

  In addition, in the escalator, when the limit switch is arranged on the back side of the deck board as described above in order to prevent the pull-in between the moving handrail and the peripheral portion of the pull-in port, the escalator is momentarily pressed by mistake. Since it operates even in the case of a malfunction, there is room for improvement in terms of accurately detecting the pull-in. For this purpose, there is room for improvement in terms of effectively preventing user disasters, and it is desired to realize an apparatus that effectively detects abnormal situations.

  On the other hand, in an elevator, it is desired to efficiently detect the occurrence of an abnormal situation when an abnormal situation occurs, such as a user being attacked by a thief in a car. For example, conventionally, some elevators employ a so-called motion search system. The motion search system alerts the user when an abnormal situation has occurred due to intense movements in the car image taken by the camera, or stops the car at the nearest floor to prevent user accidents. Or suppression is done. In addition, if a user such as a child plays wildly in the car, the elevator may break down. In such a case, the motion search system is effective. However, the use of a motion search system causes an increase in elevator installation and operation costs. For this reason, realization of an apparatus that effectively detects an abnormal situation is desired.

  As described above, it has been desired to realize a device that effectively detects an abnormal situation in a user transfer device such as an elevator or an escalator. In contrast, the present inventor has come to consider that such a problem can be solved by using a pressing power generation unit in which an output voltage increases due to an increase in force applied as described below. On the other hand, Patent Documents 1-3 include a vehicle passage display device that displays a vehicle passage state using a power generation device and a power generation device that incorporates a piezoelectric element and supplies energy to an illuminator or a door. And a floating breakwater provided with a power generation device incorporating a rolling element. However, these patent documents do not disclose a device that effectively detects an abnormal situation in the user transfer device or a configuration that suggests this.

  An object of the present invention is to effectively detect an abnormal situation in a user transfer device in an abnormal situation detection device, an elevator control device, and an escalator control device.

  An abnormal condition detection apparatus according to the present invention is an abnormal condition detection apparatus that detects an abnormal condition in a user transfer device, and generates a voltage output that increases in response to an increase in continuously applied force. And a determination unit that determines whether or not an abnormal situation has occurred using a temporal change in the output voltage of the pressing power generation unit.

  According to the abnormal condition detection apparatus according to the present invention, it is possible to detect the occurrence of an abnormal condition and to perform corresponding processing such as controlling the user transfer apparatus using the detected signal. Further, when the user accidentally presses the pressing power generation unit for a moment and releases it immediately, or when the fluctuation range per unit time of the output voltage of the pressing power generation unit is small, an abnormal situation can be prevented from being detected. For this reason, it is possible to effectively detect the occurrence of an abnormal situation in the user transfer device.

  Moreover, in the abnormal condition detection apparatus according to the present invention, preferably, the pressing power generation unit includes a piezoelectric element capable of outputting an output voltage that is temporally continuous according to a continuously applied force.

  Moreover, in the abnormal condition detection apparatus according to the present invention, preferably, the pressing power generation unit is a power generation plate configured by a piezoelectric element.

  Further, in the abnormal situation detection device according to the present invention, preferably, the determination unit gradually increases the absolute value of the output voltage of the pressing power generation unit over a preset predetermined time, and the absolute value of the output voltage is previously set. It is determined that an abnormal situation has occurred when the set threshold value is exceeded.

  Moreover, in the abnormal situation detection apparatus according to the present invention, preferably, the determination unit determines that an abnormal situation has occurred when the fluctuation range per predetermined time of the output voltage of the pressing power generation unit is equal to or greater than a preset threshold value. To do.

  Further, in the abnormal situation detection device according to the present invention, preferably, the user transfer device is an elevator, and the pressing power generation unit is provided on a side surface of the entrance / exit column part or the landing three-way frame facing the door of the elevator, Furthermore, when it is determined that a door drive device that opens and closes the door and an abnormal situation has occurred, it is determined that a door-related danger situation has occurred in the user's body or surroundings, and the door is opened from the door opening operation. A door drive control unit that controls the door drive device so as to shift to a door stop or door closing operation.

  According to the above-described configuration, it is possible to effectively detect the occurrence of a door-related dangerous situation such as a user's abnormal situation in an elevator, and to effectively pinch the user's door and the side of the column part or the three-sided frame. Can be prevented, or the spread of damage can be effectively prevented.

  Moreover, in the abnormal condition detection apparatus according to the present invention, preferably, the user transfer device is an elevator, and the pressing power generation unit is disposed at a position on the lower side of the user's feet, above the bottom of the elevator car. In addition, when it is determined that an abnormal situation has occurred and a lifting device that lifts and lowers the car, it is determined that a user's car rampage has occurred and the car is stopped at the nearest floor An elevator alarm control unit that controls the elevator device and controls the alarm unit to issue an alarm;

  According to the above configuration, it is possible to effectively detect the occurrence of a rampage in the car that is an abnormal situation in the elevator, and a user is attacked by a thief in the car, or a user such as a child rampages in the car. It is possible to detect the occurrence of an abnormal situation when an abnormal situation occurs, and to reduce the installation and operation costs compared to using a motion search system. In addition, an abnormal situation is not detected due to deformation of the pressing power generation unit accompanying normal movement or the like in the car. For this reason, it is possible to effectively detect the occurrence of an abnormal situation such as a user disaster or the expansion of the damage and the cause of failure. Therefore, it is possible to effectively prevent a user disaster or the expansion of the damage, or it is possible to effectively prevent an elevator failure.

  Moreover, in the abnormal condition detection apparatus according to the present invention, preferably, the user transfer device is an escalator, and the pressing power generation unit is opposed to a lateral edge of the step of the deck board provided on the balustrade side of the escalator. The escalator driving device that drives the escalator and the skirt of the user's body or surroundings when it is determined that an abnormal situation has occurred. A drive control unit that determines that a guard-related dangerous situation has occurred and decelerates or stops driving the escalator;

  According to the above-described configuration, it is possible to effectively detect the occurrence of a skirt guard-related dangerous situation such as being caught, which is an abnormal situation in the escalator, and it is possible to perform a corresponding process for controlling the escalator or the like using the detected signal. Also, unlike the case of detecting the occurrence of a skirt guard-related dangerous situation using a limit switch, there is an inconvenience that a skirt guard-related dangerous situation can be detected only between a part facing the limit switch of the skirt guard and a step. Can be prevented. In addition, in the configuration using the limit switch, it operates even when it is accidentally pressed instantaneously. However, in the above configuration, the pressing power generation unit is instantaneously accidentally pressed by the user's body, etc. Since it is not determined that a dangerous situation related to the skirt guard has occurred when the skirt is retracted, the driving of the escalator is not stopped unnecessarily. For this reason, it is possible to effectively detect the occurrence of an abnormal situation, and to effectively prevent a user disaster or the expansion of the damage.

  Moreover, in the abnormal condition detection device according to the present invention, preferably, the user transfer device is an escalator, and the pressing power generation unit is opposed to the lower side of the moving handrail in the peripheral portion of the moving handrail entry port on the end side deck board of the escalator. In addition, an escalator driving device that drives the escalator and a dangerous situation related to the handrail of the user's body or surrounding objects when it is determined that an abnormal situation has occurred. A second drive control unit that determines and controls the escalator drive device to decelerate or stop the drive of the escalator.

  According to the said structure, generation | occurrence | production of moving handrail related dangerous situations, such as being pinched which is an abnormal condition in an escalator, can be detected effectively, and the corresponding process which controls an escalator etc. using the detected signal can be performed. In addition, in the case of a configuration that uses a limit switch to detect the occurrence of a dangerous situation related to a handrail, it operates even if it is accidentally pressed momentarily. When the power generation plate is pushed by the body or the like, and the body or the like is immediately retracted, it is not determined that a dangerous situation related to the moving handrail has occurred, and thus the driving of the escalator is not stopped unnecessarily. For this reason, it is possible to effectively detect the occurrence of an abnormal situation, and to effectively prevent a user disaster or the expansion of the damage.

  According to the abnormal situation detection device, the elevator control device, and the escalator control device according to the present invention, the abnormal situation in the user transport device can be detected effectively.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustrating a state where a car door is being opened in a car in an elevator including the abnormal condition detection device according to the first embodiment of the present invention. In an elevator provided with the abnormal condition detection apparatus of 1st Embodiment, it is sectional drawing which shows the state in the middle of the door with a car and landing opening. It is a block diagram which shows an elevator control apparatus provided with the abnormal condition detection apparatus of 1st Embodiment. In 1st Embodiment, it is a figure which shows one example of the time passage of the output voltage output from an electric power generation plate. It is a block diagram which shows an elevator control apparatus provided with the abnormal condition detection apparatus of 2nd Embodiment which concerns on this invention. In 2nd Embodiment, it is a figure which shows one example of the time passage of the output voltage output from an electric power generation plate. It is a schematic sectional drawing which shows the escalator provided with the abnormal condition detection apparatus of 3rd Embodiment concerning this invention. It is a block diagram which shows the escalator control apparatus provided with the abnormal condition detection apparatus of 3rd Embodiment. It is a perspective view which shows the getting off periphery part of an escalator provided with the abnormal condition detection apparatus of 3rd Embodiment. It is a block diagram which shows the escalator control apparatus provided with the abnormal condition detection apparatus of 4th Embodiment which concerns on this invention.

[First Embodiment]
Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. 1 to 4 show a first embodiment of the present invention.

  As shown in FIG. 1 and FIG. 2, the elevator, which is a user transfer device provided with the abnormal condition detection device of the present embodiment, includes a car door 14 that opens and closes the doorway 12 of the car 10, and the left and right sides of the doorway 12. Two entrance / exit pillars 16 are provided on both sides in the direction (left and right direction in FIGS. 1 and 2). In addition, an operation unit 18 for designating an arrival floor is provided in at least one of the entrance / exit pillars 16. Opening and closing of the car door 14 is controlled by a door driving device 20 shown in FIG. The door driving device 20 has a motor (not shown), and when the car 10 (FIGS. 1 and 2) arrives at a designated designated floor by a control signal input from the controller, the car door 14 (FIG. 1). , FIG. 2) is operated to open the door. Further, after the car 10 arrives at the designated floor, the door driving device 20 causes the car door 14 to be closed according to the passage of a predetermined time or the operation of the operation unit 18 by the user. As shown in FIG. 2, a landing door 26 that opens and closes the doorway 24 is provided at an doorway 24 that is an opening provided in the hall 22 on the arrival floor. With the opening / closing operation of the car door 14, the landing door 26 is also opened / closed. A landing three-way frame 28 that surrounds the doorway 24 from three sides is provided in the periphery of the doorway 24 of the hall 22. The abnormal condition detection device 30 of the present embodiment includes a power generation plate 32 and a controller 34 (FIG. 3).

  That is, as shown in FIG. 1 to FIG. 3, the power generation plate 32, which is a pressing power generation unit, is disposed in a predetermined length range in the vertical direction of two side surfaces of the two entrance / exit column portions 16 facing each other. Provided. The power generation plate 32 is constituted by a piezoelectric element, and can output an output voltage that is continuous in time according to a force continuously applied from the outside. That is, when the power generation plate 32 is deformed by an external force, an output voltage is generated according to the deformation. Further, the output voltage of the power generation plate 32 increases in accordance with the increase in the force applied continuously. The reason why the power generation plate 32 is provided in a predetermined length range in the vertical direction of the entrance / exit column portion 16 is to correspond to the heights of almost all users regardless of the wide height difference of the users. .

  As shown in FIGS. 2 and 3, the power generation plate 32 has a flat plate-like shape, and has one end in the width direction (the upper end in FIGS. 2 and 3) inside the car 10, and the entrance / exit column 16. It is fixed to the side. The other end in the width direction of the power generation plate 32 facing the landing 22 (the lower end edge in FIGS. 2 and 3) faces the car door 14 directly, that is, without interposing other members. As shown in FIG. 3, the output voltage of the power generation plate 32 is input to the controller 34. The fixing position of the power generation plate 32 is not limited to the position as shown in FIG. 2, and a case where a user or the like tends to be caught in the gap between the power generation plate 32 and the car door 14. In addition, the portion of the power generation plate 32 facing the car door 14 may be provided so as to be deformable.

  The controller 34 is a control unit including a microcomputer having a CPU, a memory, and the like. The controller 34 includes a determination unit 36 and a door drive control unit 38. The determination unit 36 determines whether or not an abnormal situation has occurred by using a temporal change in the output voltage of the power generation plate 32. In other words, the determination unit 36 detects an abnormal situation when the absolute value of the output voltage of the power generation plate 32 gradually increases over a predetermined time T that is set in advance, and the absolute value of the output voltage exceeds a preset threshold A. If the absolute value of the output voltage is less than the preset threshold A, it is determined that no abnormal situation has occurred.

  Further, when the determination unit 36 determines that an abnormal situation has occurred, the door drive control unit 38 determines that the door-related dangerous situation such as the user's body or a surrounding object such as the user's clothes or luggage is present. It determines with having generate | occur | produced, and controls the door drive device 20 so that the passenger car door 14 may shift from the door opening operation to the door stop or door closing operation.

  For example, when a user in the car 10 mistakenly places a part of the body such as a finger around the gap between the power generation plate 32 and the car door 14, the car 10 is placed on the designated floor. It cannot be said that there is no case of arriving and shifting from the state where the car door 14 is closed to the door opening operation. In this case, with the opening operation of the car door 14, the user's body may be caught in the gap between the power generation plate 32 and the car door 14. On the other hand, in this Embodiment, the electric power generation plate 32 is pressed by the user's body in the direction shown by arrow (alpha) in FIG. 2, for example, and the output voltage according to a pressing force generate | occur | produces by deform | transforming. For this reason, the door drive device 20 is controlled by the controller 34 (FIG. 3) to which a signal representing the output voltage is input, and the door opening operation is reversed to the door closing operation, or the car door 14 is opened and closed. By stopping the operation, the user's body or the like can be released immediately, and pinching of the body or the like can be effectively prevented, or the spread of damage can be effectively prevented.

  Next, this will be described in detail with reference to FIG. In the following description of the present embodiment, the same elements as those shown in FIGS. 1 to 3 are denoted by the same reference numerals. As shown in FIG. 4, when the output voltage of the power generation plate 32 is generated and the output voltage changes as shown in the figure, the predetermined time corresponding to the abnormal situation is defined as T, which is a fixed time, and the output voltage corresponding to the abnormal situation. When the threshold value is A, the output voltage rises at times t1 and t3, and measurement of the predetermined time T is started. In this case, since the output voltage returns to 0 at times t2 and t4 after the end of the predetermined time T, it is determined that the power generation plate 32 is pushed and released by the user for a moment due to carelessness or the like. On the other hand, when the measurement of the predetermined time T is started due to the rise of the output voltage at time t5, if the rise of the output voltage is detected even at time t6 after the predetermined time T, the output voltage subsequently becomes equal to or higher than the threshold value A. Check if it becomes. In this case, since the output voltage becomes equal to or greater than the threshold value A at time t7, it is determined that a door-related dangerous situation has occurred in which the body of the user is sandwiched and the pressing force of the power generation plate 32 is increasing. In this case, the door drive control unit 38 outputs a control signal to the door drive device 20, whereby the opening / closing operation of the car door 14 is stopped or reversed, so that user protection is effectively achieved. The measurement start at the predetermined time T may be a timing when the output voltage rises above a preset measurement start threshold. The elevator control device according to the present embodiment includes an abnormal condition detection device 30 and a door drive device 20.

  Further, in the case of the present embodiment, as shown in FIG. 2, the car is within a predetermined length range in the vertical direction of the two side surfaces located on the left and right sides of the entrance / exit 24 of the landing three-side frame 28 on the landing 22 side. A second power generation plate 40 having the same function as that of the power generation plate 32 provided in FIG. The output voltage of the second power generation plate 40 is also input to the controller 34. The determination unit 36 of the controller 34 is a landing when the absolute value of the output voltage of the second power generation plate 40 gradually rises over a preset predetermined time and the absolute value of the output voltage exceeds a preset threshold value. It is determined that an abnormal situation has occurred, and it is determined that a landing abnormal situation has not occurred when the absolute value of the output voltage is less than a preset threshold value. The door drive control unit 38 also includes a door that is sandwiched between the user's body or surroundings, such as the user's clothes or luggage, even when the determination unit 36 determines that a landing abnormal situation has occurred. It is determined that a related dangerous situation has occurred, and the door driving device that opens and closes the landing door 26 is controlled so that the landing door 26 shifts from a door opening operation to a door stop or door closing operation.

  The power generation plates 32 and 40 combine a plurality of plates and electrically connect the plurality of plates in parallel. That is, even when one of the power generation plates 32 and 40 is pressed, the output voltage is detected. The detection signal may be output to the controller 34.

  As described above, the abnormal condition detection device 30 according to the present embodiment includes the power generation plates 32 and 40 that generate the output voltage that increases in accordance with the increase in the continuously applied force, and the output voltages of the power generation plates 32 and 40. The abnormal situation detection device 30 includes a determination unit 36 that determines whether an abnormal situation has occurred using a temporal change. The elevator control device includes the abnormal situation detection device 30. For this reason, it is possible to detect a direct pinching in the gap between the user's car door 14 and the entrance / exit column 16 without using the overload detection means described in Patent Document 1 above, and to detect the detection. It is possible to effectively prevent the user's body or the like from being pinched by using the received signal, or to effectively prevent the expansion of the disaster. That is, it is possible to directly detect the occurrence of an abnormal situation, and to perform corresponding processing for controlling the elevator using the detected signal.

  In addition, it is possible to prevent a user from being caught in the gap between the landing three-way frame 28 and the landing door 26 arranged on the left and right of the entrance / exit 24 on the landing 22 side, or to effectively prevent the expansion of the disaster. Further, when the user accidentally presses the power generation plates 32 and 40 for a moment and releases them immediately, the abnormal situation is not detected, and the car door 14 and the landing door 26 are unnecessarily opened / closed or reversed. There is nothing. For this reason, it is possible to effectively detect the occurrence of a door-related dangerous situation such as a user's abnormal situation in the elevator, and the pinching between the doors 14 and 26 of the user and the side surface of the column portion 16 or the three-way frame 28 is effective. Can effectively prevent the spread of disasters.

  In the present embodiment, the power generation plates 32 and 40 are provided on both the car 10 side and the landing 22 side, but the power generation plate is provided only on one of the car 10 side and the landing 22 side. It is also possible to determine whether or not an abnormal situation has occurred by using the output voltage output from the one power generation plate by the abnormal situation detection device 30.

[Second Embodiment]
FIG. 5: is a block diagram which shows an elevator control apparatus provided with the abnormal condition detection apparatus of 2nd Embodiment which concerns on this invention. FIG. 6 is a diagram illustrating an example of the passage of time of the output voltage output from the power generation plate in the second embodiment.

  As shown in FIG. 5, in the case of the present embodiment, the elevator control device includes an abnormal condition detection device 42 including a controller 34, a lifting device 44 and an alarm unit 46. The elevating device 44 elevates and lowers the elevator car 10. A hoisting machine (not shown) provided in the upper and lower parts of the hoistway 47 and a drive control device (not shown) for controlling the driving of the hoisting machine are provided. The drive control apparatus moves the car 10 to a designated designated floor in response to an operation of a landing button or an operation unit 18 (see FIG. 1) in the car 10.

  The alarm unit 46 includes an audio output unit such as a speaker, and the audio output unit is provided in a car 10 or a management room in a building where an elevator is installed. The alarm unit 46 is configured to emit an alarm signal instead of or together with the audio output unit, and the alarm signal issued by the alarm unit 46 is located at a location away from the building where the elevator is installed. It can also be configured to notify the occurrence of an abnormality by transmitting to the elevator management company or security company.

  The abnormal situation detection device 42 includes a power generation plate 48 and a controller 34. The power generation plate 48 is disposed in a state where at least a part thereof is floated at a position on the bottom upper side of the car 10 that is below the user's feet. The power generation plate 48 is constituted by a piezoelectric element having the same function as that of the first embodiment, and has a flat plate shape. Further, the power generation plate 48 may have the same area as the substantially entire floor surface, and the four edge portions of the power generation plate 48 may be supported on the lower side of the car 10. Further, an elastic material such as a cushion or a spring can be provided between the power generation plate 48 and the bottom of the car 10. The output voltage of the power generation plate 48 is input to the controller 34.

  The controller 34 includes a determination unit 50 and a lift alarm control unit 52. The determination unit 50 determines whether or not an abnormal situation has occurred using a temporal change in the output voltage of the power generation plate 48. That is, the determination unit 50 determines that an abnormal situation has occurred when the fluctuation range per predetermined time of the output voltage of the power generation plate 48 is equal to or greater than a predetermined threshold B, and the output voltage has a predetermined time. When the fluctuation range of the hit is less than a preset threshold B, it is determined that no abnormal situation has occurred.

  Further, when the determination unit 50 determines that an abnormal situation has occurred, the lifting / lowering alarm control unit 52 determines that a user's rampage in the car has occurred, and lifts and lowers the car 10 to stop at the nearest floor. The device 44 is controlled, and the alarm unit 46 is controlled to issue an alarm. For example, when the alarm unit 46 is an audio output unit, an alarm sound such as a buzzer sound or a pre-recorded audio such as an alarm announcement is output.

  For example, the power generation plate 48 is deformed when a user in the car 10 moves normally in the car 10 and the like, and the output voltage fluctuates accordingly, but the fluctuation range of the output voltage per predetermined time is the threshold value B. If it is less than that, it is not determined as an abnormal situation. On the other hand, if the fluctuation range of the output voltage per predetermined time is equal to or larger than the threshold value B, it is determined that the user is abnormally rampaged in the car 10. The user rampage may be based on the risk of a child or the like playing with a child or being attacked by a thief or the like. Therefore, when it is determined that such a car rampage has occurred, the car 10 is immediately stopped at the nearest floor, and the car door 14 (see FIG. 2) and the landing door 26 (see FIG. 2). It is effective to release the alarm or issue an alarm by the alarm unit 46.

  This will be described in detail with reference to FIG. In the following description of the present embodiment, the same elements as those shown in FIG. As shown in FIG. 6, if the output voltage of the power generation plate 48 is generated and the output voltage changes as shown in the figure, the predetermined time corresponding to the abnormal situation is T1, T2, T3, T4 which are the same constant time. When the threshold value of the fluctuation range of the output voltage corresponding to the abnormal situation is set to B, the predetermined time T1, T2, T3, T4 is measured at predetermined intervals, triggered by the rising point of the output voltage, and the predetermined time It is determined whether or not the fluctuation range of the output voltage per T1, T2, T3, and T4 is greater than or equal to the threshold value B. At the predetermined times T1, T2, and T3, the fluctuation range of the output voltage per predetermined time T1, T2, and T3 is less than the threshold value B, and it is determined that the power generation plate 48 is deformed due to normal movement or the like, and an abnormal situation occurs. It is determined that it is not. On the other hand, at the predetermined time T4, the fluctuation range per predetermined time T4 is equal to or greater than the threshold value B. Therefore, it is determined that a rampage in the car 10 has occurred due to a user rampage, and at time ta, the raising / lowering alarm control is performed. The unit 52 controls the elevating device 44 and the alarm unit 46 to stop the car 10 at the nearest floor so that the alarm unit 46 issues an alarm. Note that the measurement start for the predetermined time may be a timing when the output voltage rises above a preset measurement start threshold.

  In the case of this embodiment as well, the power generation plate 48 that generates an output voltage that rises in response to the increase in the continuously applied force, and the temporal change in the output voltage of the power generation plate 48 are used for abnormality. And a determination unit 50 that determines whether or not a situation has occurred. For this reason, it is possible to detect a user's rampage in the car 10 and to perform a corresponding process for controlling an elevator or the like using the detected signal. That is, when an abnormal situation occurs such as a user being attacked by a thief in the car 10 or a user such as a child being rampant in the car 10, the car 10 which is an abnormal situation in the elevator. The occurrence of internal rampage can be detected. In addition, installation costs and operation costs can be reduced compared to using a motion search system. Further, an abnormal situation is not detected due to deformation of the power generation plate 48 accompanying normal movement or the like in the car 10. For this reason, it is possible to effectively detect the occurrence of an abnormal situation such as a user disaster or the expansion of the damage and the cause of failure. Therefore, it is possible to effectively prevent a user disaster or the expansion of the damage, or it is possible to effectively prevent an elevator failure.

  It is also possible to adopt a configuration in which the output voltage of the power generation plate 48 provided in the lower part of the car 10 used in the present embodiment is input to the controller, and the controller detects the presence / absence of a user in the car 10. it can. In addition, when the controller to which the output voltage of the power generation plate 48 is input is trapped in the car 10 due to an escalator failure or the like, the presence / absence of the user in the car 10 is determined separately in the building. It is also possible to adopt a configuration in which the determination is made at a remote location or a remote location. In addition, the controller to which the output voltage is input at another place in the building or at a remote place is not registered in the car call even though the user is in the car 10. A configuration for detecting the occurrence can also be adopted.

[Third Embodiment]
FIG. 7: is a schematic sectional drawing which shows the escalator provided with the abnormal condition detection apparatus of 3rd Embodiment which concerns on this invention. FIG. 8 is a configuration diagram illustrating an escalator control device including the abnormal condition detection device according to the third embodiment. FIG. 9 is a perspective view showing a surrounding area of an exit of an escalator including the abnormal condition detection device according to the third embodiment. In the following, the case where the escalator is for lowering will be described, but the present embodiment can also be applied to an escalator for rising.

  As shown in FIG. 7 to FIG. 9, the escalator, which is a user transfer device provided with the abnormal condition detection device 54 (FIG. 8) of the present embodiment, crosses between the upper floor and the lower floor in the building. The truss 56 is provided as described above, and the plurality of steps 60 can be moved by the transfer means 58 provided on the truss 56. The transfer means 58 includes a drive mechanism 62 and an escalator drive device 64. The drive mechanism 62 includes a power transmission mechanism having a chain 65 and sprockets 66 and 68. In other words, the plurality of steps 60 have a plurality of step shafts supported by each step 60 connected by an endless chain 65. The driving roller supported by each step shaft is guided by the driving rail 70. The chain 65 is wound around sprockets 66 and 68 provided on the upper side and the lower side, and the upper sprocket 66 that is a driving sprocket can be driven by an escalator driving device 64 including a driving motor. For this reason, the chain 65 is circulated in the direction indicated by the arrow β in FIG.

  A rail 72 is provided on the truss 56 on both sides of the step 60 in the left-right direction, and a moving handrail 74 (FIGS. 8 and 9) that moves as the step 60 moves is provided on the upper surface of the rail 72. On the step board side of the deck board provided under the balustrade 72, a plurality of connected power generation plates 76 (FIGS. 8 and 9) are provided to cover the transfer means 58 (FIG. 1). . The power generation plate 76 also has a skirt guard function.

  Each power generation plate 76 is provided at a position facing the edge of the step 60 in the left-right direction (left-right direction in FIG. 9) of the deck board below the balustrade 72. The power generation plate 76 is constituted by a piezoelectric element having the same function as that of the first embodiment shown in FIGS. 1 to 3, and has a flat plate shape. In addition, a gap is provided between each power generation plate 76 and the step 60. Further, end deck boards 78 and 80 are provided at the entrance side end and the exit side end at both ends in the length direction of the portion formed by connecting the plurality of power generation plates 76 of the truss 56. . Further, as shown in FIG. 9, a moving handrail pull-in port (hereinafter simply referred to as a “pull-in port”) that is an opening into which the movable handrail 74 enters in the vicinity of the floor surface of the end-side deck board 80 at the end of the exit side. .) 82 is provided.

  Each power generation plate 76 has at least an upper edge portion fixed to a fixing portion of the truss 56. The lower end edge portion of each power generation plate 76 may be in a state of floating with respect to a portion fixed to the truss 56. The abnormal condition detection device 54 (FIG. 8) includes a power generation plate 76 and a controller 77. The power generation plate 76 generates an output voltage when a force is applied from the outside, and the output voltage is output to the controller 77. Each power generation plate 76 is electrically connected in parallel. That is, when an output voltage is generated from at least one power generation plate 76, the output voltage is input to the controller 77.

  The controller 77 includes a determination unit 84 and a drive control unit 86. The determination unit 84 determines whether or not an abnormal situation has occurred by using a temporal change in the output voltage of the power generation plate 76. That is, in the same way as in the first embodiment, the determination unit 84 gradually increases the absolute value of the output voltage of the power generation plate 76 over a preset predetermined time, and the absolute value of the output voltage is set in advance. It is determined that an abnormal condition has occurred when the threshold value is equal to or greater than the set threshold value, and it is determined that no abnormal condition has occurred when the absolute value of the output voltage is less than a preset threshold value.

  Further, the drive control unit 86, when it is determined by the determination unit 84 that an abnormal situation has occurred, is a skirt guard that is sandwiched between the user's body or surroundings, such as the user's clothes or luggage. It is determined that a related dangerous situation has occurred, and the escalator driving device 64 is controlled so as to decelerate or stop driving the escalator.

  For example, when a user who is on the escalator step 60 (FIGS. 7 and 9) is located at the edge in the left-right direction of the step 60, the user is placed in the gap between the step 60 and the power generation plate 76. Shoes and luggage tend to be pinched. In particular, when the shoes are made of rubber, the shoes are likely to be sandwiched between the power generation plate 76 and the step 60. On the other hand, in the present embodiment, since the abnormal condition detection device 54 is provided as described above, it is possible to detect the occurrence of a sandwiched skirt guard-related dangerous situation that is an abnormal situation. That is, the power generation plate 76 is pressed to the back side of the deck board by a user's shoes or the like, for example, and deforms to generate an output voltage. For this reason, the escalator driving device 64 is controlled by the controller 77 to which the signal indicating the output voltage is input, and the movement of the step 60 can be decelerated or stopped.

  In the case of this embodiment as well, the power generation plate 76 that generates an output voltage that rises in accordance with the increase in the continuously applied force, and the time variation of the output voltage of the power generation plate 76 is used to make an abnormality. And a determination unit 84 that determines whether or not a situation has occurred. Therefore, it is possible to effectively detect the occurrence of a skirt guard-related dangerous situation that is an abnormal situation in the escalator, and it is possible to perform a corresponding process for controlling the escalator or the like using the detected signal. Further, unlike the case where the occurrence of the skirt guard-related dangerous situation is detected using the limit switch, it is possible to prevent the inconvenience that the pinch can be detected only between the part facing the limit switch of the skirt guard and the step. That is, since the power generation plate 76 can be provided on the entire skirt guard portion facing the end edge of the step 60, all or almost all of the pinching situations can be detected, and the drive of the escalator can be controlled. In the configuration using the limit switch, it operates even if it is accidentally pressed instantaneously. However, in this embodiment, the power generation plate 76 is instantaneously accidentally pressed by the user's body, and the body is immediately Since it is not determined that a dangerous situation related to the skirt guard has occurred when the escalator is retracted, the driving of the escalator is not stopped unnecessarily. As described above, in the present embodiment, occurrence of an abnormal situation can be detected effectively, and a user disaster or the expansion of the disaster can be effectively prevented.

  The determination unit 84 gradually increases the absolute value of the output voltage of the power generation plate 76 over a preset predetermined time, and the absolute value of the output voltage is smaller than a threshold corresponding to the escalator drive stop condition. It is determined that a warning situation has occurred when the value is greater than or equal to the warning threshold value, and a sound output unit, which is a warning unit that generates a buzzer sound or warning announcement (not shown) before driving the escalator, is stopped. A warning sound or warning announcement can be output to alert the user.

[Fourth Embodiment]
FIG. 10: is a block diagram which shows the escalator control apparatus provided with the abnormal condition detection apparatus of 4th Embodiment based on this invention. In the present embodiment, in the escalator similar to the third embodiment shown in FIGS. 7 to 9, the power generation plate 76 having the function of the skirt guard is provided or the power generation plate 76 is omitted. In the vicinity of the floor surface of the end-side deck board 80 provided at both ends in the longitudinal direction of the truss 56 of the escalator, a drawing-in port 82 that is an opening through which the moving handrail 74 enters is provided. . Further, in the end side deck board 80, a power generation plate 88 is provided in a part of the peripheral part of the inlet 82 facing the lower side of the moving handrail 74, and a peripheral part thereof is fixed to the end side deck board 80. In the case of the illustrated example, since the escalator is a lowering escalator, a power generation plate 88 is provided around the drawing-in port 82 of the lower end deck board 80. A power generation plate 88 is provided around the board inlet.

  The power generation plate 88 is constituted by a piezoelectric element having the same function as that of the first embodiment shown in FIGS. 1 to 3, and has a flat plate shape. The power generation plate 88 generates an output voltage when a force is applied from the outside, and the output voltage is output to the controller 77.

  The controller 77 includes a determination unit 90 and a second drive control unit 92. The determination unit 90 determines whether or not an abnormal situation has occurred using a temporal change in the output voltage of the power generation plate 88. That is, as in the first embodiment, the determination unit 90 gradually increases the absolute value of the output voltage of the power generation plate 88 over a preset predetermined time, and the absolute value of the output voltage is It is determined that an abnormal condition has occurred when the threshold value is equal to or greater than the set threshold value, and it is determined that no abnormal condition has occurred when the absolute value of the output voltage is less than a preset threshold value.

  When the determination unit 90 determines that an abnormal situation has occurred, the second drive control unit 92 is a moving handrail that is sandwiched between the user's body or surroundings, such as the user's clothes or luggage. It is determined that a related dangerous situation has occurred, and the escalator driving device 64 is controlled so as to decelerate or stop driving the escalator. The abnormal situation detection device 94 includes a power generation plate 88 and a controller 77.

  For example, a user such as a child is mischievous around the exit of the escalator, so that a part of the body such as a finger, clothes, luggage, etc. tend to be drawn into the gap between the handrail 74 and the inlet 82. There is a possibility. On the other hand, in this Embodiment, since the abnormal condition detection apparatus 94 is provided as mentioned above, it can detect that the moving handrail related dangerous condition which is an abnormal condition generate | occur | produced. That is, the power generation plate 88 is pressed toward the back side of the end side deck board 80 by, for example, the body of the user and deformed, thereby generating an output voltage. For this reason, the escalator driving device 64 is controlled by the controller 77 to which the signal representing the output voltage is input, and the movement of the moving handrail 74 can be decelerated or stopped.

  In the case of this embodiment as well, the power generation plate 88 that generates an output voltage that rises in accordance with the increase in the continuously applied force, and the time variation of the output voltage of the power generation plate 88 are used to make an abnormality. And a determination unit 90 that determines whether or not a situation has occurred. For this reason, it is possible to effectively detect the occurrence of a dangerous situation related to the handrail, which is an abnormal condition in the escalator, and it is possible to perform a corresponding process for controlling the escalator or the like using the detected signal. In addition, when the occurrence of a dangerous situation related to a handrail using a limit switch is detected, it operates even if it is momentarily pressed by mistake, but in this embodiment, the user's body is mistakenly instantaneously. If the power generation plate 88 is pushed by the above, and the body or the like is immediately retracted, it is not determined that the dangerous situation related to the moving handrail has occurred, and therefore the driving of the escalator is not stopped unnecessarily. As described above, in the present embodiment, occurrence of an abnormal situation can be detected effectively, and a user disaster or the expansion of the disaster can be effectively prevented.

  In addition, the determination unit 90 gradually increases the absolute value of the output voltage of the power generation plate 88 over a predetermined time that is set in advance, and the absolute value of the output voltage is smaller than a threshold value corresponding to the drive stop condition of the escalator. It is determined that a warning situation has occurred when the value is greater than or equal to the warning threshold value, and a sound output unit, which is a warning unit that generates a buzzer sound or warning announcement (not shown) before driving the escalator, is stopped. A warning sound or warning announcement can be output to alert the user.

  10 passenger car, 12 doorway, 14 passenger door, 16 door column, 18 operation part, 20 door drive device, 22 landing, 24 doorway, 26 landing door, 28 landing three-way frame, 30 abnormal condition detection device 54, 32 power generation Plate, 34 Controller, 36 Judgment unit, 38 Door drive control unit, 40 Second power generation plate, 42 Abnormal condition detection device, 44 Lifting device, 46 Alarm unit, 47 Hoistway, 48 Power generation plate, 50 Judgment unit, 52 Lifting alarm Control unit, 54 Abnormal condition detection device, 56 truss, 58 transfer means, 60 steps, 62 drive mechanism, 64 escalator drive device, 66, 68 sprocket, 70 drive rail, 72 balustrade, 74 moving handrail, 76 power generation plate, 77 controller , 78,80 End side deck board, 82 Moving handrail Slot, 84 determination unit, 86 drive control unit, 88 power generation plate, 90 determination unit, 92 second drive control unit, 94 abnormal condition detection device.

Claims (9)

An abnormal situation detection device for detecting an abnormal situation in a user transfer device,
A pressing power generation unit that generates an output voltage that rises in response to an increase in force continuously applied; and
An abnormal condition detection apparatus comprising: a determination unit that determines whether or not an abnormal condition has occurred using a temporal change in the output voltage of the pressing power generation unit. In the abnormal situation detection device according to claim 1,
The abnormal power detection device, wherein the pressing power generation unit includes a piezoelectric element capable of outputting a temporally continuous output voltage according to a continuously applied force. In the abnormal situation detection device according to claim 2,
The pressing power generation unit is an electric power generation plate configured by a piezoelectric element. In the abnormal condition detection apparatus according to any one of claims 1 to 3,
The determination unit determines that an abnormal situation has occurred when the absolute value of the output voltage of the pressing power generation unit gradually rises over a preset predetermined time and the absolute value of the output voltage exceeds a preset threshold value. An abnormal condition detection device characterized by: In the abnormal condition detection apparatus according to any one of claims 1 to 3,
The determination unit determines that an abnormal condition has occurred when a fluctuation range per predetermined time of the output voltage of the pressing power generation unit is equal to or greater than a preset threshold value. An elevator control device comprising the abnormal situation detection device according to claim 4,
The user transfer device is an elevator,
The pressing power generation unit is provided on the side of the doorway column or the landing three-way frame facing the elevator door,
Furthermore, a door drive device that opens and closes the door;
When it is determined that an abnormal situation has occurred, it is determined that a door-related danger situation of the user's body or surrounding objects has occurred, and the door is moved from the door opening operation to the door stop or door closing operation. An elevator control device comprising: a door drive control unit that controls the door drive device. An elevator control device comprising the abnormal situation detection device according to claim 5,
The user transfer device is an elevator,
The pressing power generation unit is arranged at a position on the bottom upper side of the elevator car, on the lower side of the user's feet,
Furthermore, a lifting device that lifts and lowers the car,
When it is determined that an abnormal situation has occurred, it is determined that a user's car rampage has occurred, the elevator is controlled to stop the car on the nearest floor, and the alarm unit is controlled to issue an alarm. An elevator control device comprising: an elevator alarm control unit that performs the operation. An escalator control device comprising the abnormal condition detection device according to claim 4,
The user transfer device is an escalator,
The pressing power generation unit is provided as a skirt guard function at a position facing the left and right edge of the step of the deck board provided on the balustrade side of the escalator,
Furthermore, an escalator driving device that drives the escalator,
When it is determined that an abnormal situation has occurred, it is determined that a skirt guard-related dangerous situation has occurred on the user's body or surroundings, and the escalator drive is decelerated or stopped. An escalator control device comprising: a drive control unit that controls the device. An escalator control device comprising the abnormal condition detection device according to claim 4,
The user transfer device is an escalator,
The pressing power generation unit is provided on the end side deck board of the escalator at a portion facing the lower side of the moving handrail in the peripheral portion of the moving handrail drawing port,
Furthermore, an escalator driving device that drives the escalator,
When it is determined that an abnormal situation has occurred, it is determined that a dangerous situation related to the handrail of the user's body or surrounding objects has occurred, and the escalator drive device is configured to decelerate or stop driving the escalator. An escalator control device comprising: a second drive control unit that controls

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