JP6218909B1 - Elevator control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a landing position detecting device for detecting a landing position of a car in a non-contact state and an object to be detected in the event of an earthquake, and to reduce time and labor before restarting operation. Provided is an elevator control device that can be operated. According to an embodiment, an elevator control device is installed in an elevator car and detects a detected object installed at a position corresponding to a landing on each floor in a hoistway in a non-contact state. It is connected to a landing position detection device that recognizes the position of the car as the landing position on the corresponding floor. When the elevator call is not generated and there are no passengers in the car, the car is moved to a position where the detected object is not detected by the landing position detecting device and stopped. [Selection] Figure 1

Description

  Embodiments described herein relate generally to an elevator control device.

  Conventionally, an elevator car is equipped with a landing position detection device for detecting an appropriate landing position in a hoistway of a building. This landing position detection device is installed at a predetermined position on the side of the car, and detects the object to be detected installed at the position corresponding to the target floor landing in the hoistway, thereby increasing the height of the floor of the car. It can be made to fit the height of the floor of the destination hall.

Japanese Patent Laid-Open No. 2007-197181

  The above-described landing position detection device detects a detection object on each floor in a non-contact state by outputting magnetism or light. When the car has landed on any floor, the landing position detecting device and the detected object on the corresponding floor are in close proximity. If an earthquake occurs in this state, the landing position detection device may come into contact with the detected object and both may be damaged.

  When an earthquake occurs, the elevator shifts to a temporarily stopped state, and after the shaking is stopped, operation is resumed if no abnormality is detected in the elevator. However, if the landing position detection device or the detected object is damaged, the operation cannot be resumed unless the corresponding part is replaced, and there is a problem that it takes time and effort to resume the operation.

  The present invention has been made in view of the above circumstances, and prevents a landing position detection device for detecting a landing position of a car in a non-contact state when an earthquake occurs, and damage to a detected object. Thus, an object of the present invention is to provide an elevator control device that can reduce the time and effort required to resume operation.

  According to the embodiment for achieving the above object, the elevator control device detects a detected object installed in a position corresponding to the landing of each floor in the hoistway in a non-contact state. The position of the car at this time is connected to a landing position detection device that recognizes the position of the car as a landing position on the corresponding floor. When the elevator call is not generated and there are no passengers in the car, the car is moved to a position where the detected object is not detected by the landing position detecting device and stopped.

1 is an overall view showing a configuration of an elevator using an elevator control device according to an embodiment. The external appearance perspective view which shows the landing position detection apparatus connected to the elevator control apparatus by one Embodiment. The external appearance perspective view which shows the state which the landing position detection apparatus connected to the elevator control apparatus by one Embodiment and the to-be-detected body are not meshing | engaging. The external appearance perspective view which shows the state which the to-be-detected body and the landing position detection apparatus connected to the elevator control apparatus by one Embodiment are meshing. The figure which looked at the landing position detection apparatus and to-be-detected body connected to the elevator control apparatus by one Embodiment from the upper direction. The block diagram which shows the structure of the elevator control apparatus by one Embodiment. The flowchart which shows the process performed in normal operation in the elevator control apparatus by one Embodiment. The flowchart which shows the process performed when the earthquake generate | occur | produced in the elevator control apparatus by one Embodiment.

<Elevator Configuration Using Elevator Control Device According to One Embodiment>
The structure of the elevator using the elevator control apparatus by one Embodiment of this invention is demonstrated with reference to FIG.

  The elevator 1 according to this embodiment is installed in a three-story building and is suspended from one end of a hoist 4 installed in a machine room 3 above the hoistway 2 and a rope 5 spanned over the hoist 4. Platform 6, a pulse generator 7 connected to the hoist 4, and a hall operation panel that is installed in halls 1-8 to 8-3 on the 1st to 3rd floors for a user to perform hall call operations. 9-1 to 9-3, connected to the hoisting machine 4 and the pulse generator 7, connected to the landing operation panels 9-1 to 9-3 with the signal line 10, and further connected to the car 6 with the tail cord 11. And a control panel 12. The car 6 moves up and down between the first floor hall 8-1, the second floor hall 8-2, and the third floor hall 8-3 in the hoistway 2 by the operation of the hoist 4. In the car 6, an in-car operation panel 61 is installed for the user to designate the destination floor. The pulse generator 7 generates position information of the car 6 in the hoistway 2 from the behavior of the hoist 4 and transmits it to the control panel 12. In the hoistway 2, a guide rail 13 that guides the raising / lowering operation of the car 6 is installed.

  A landing position detection device 14 is installed on the upper portion of the car 6. The landing position detection device 14 recognizes the landing position of the car 6 on the corresponding floor by outputting a magnetism or light and detecting the detected object in the non-contact state. The guide rail 13 has a position detected by the landing position detection device 14 when the car 6 has landed at an appropriate position corresponding to each of the landings 8-1 to 8-3 on each floor. The detected bodies 15-1 to 15-3 are installed. Hereinafter, when it is not necessary to specify any of the landings 8-1 to 8-3, the landing 8 is described. Similarly, the detected bodies 15-1 to 15-3 are referred to as the detected bodies 15.

  The configurations of the landing position detection device 14 and the detection target 15 will be described with reference to FIGS. FIG. 2 is an external perspective view showing the landing position detection device 14. FIG. 3 is an external perspective view of the landing position detecting device 14 and the detected object 15 when the car 6 is not landing, and FIG. 4 is the landing when the car 6 is landing. FIG. 5 is an external perspective view of the position detection device 14 and the detection target 15, and FIG. 5 is a diagram illustrating a state where the landing position detection device 14 and the detection target 15 are viewed from above.

  The landing position detection device 14 includes a first detection unit 141, a second detection unit 142, a third detection unit 143, and a fourth detection unit 144 having a U-shape. The first detection unit 141 to the third detection unit 143 are arranged so that the positions in the horizontal direction (the floor and the horizontal plane) are the same, and the positions in the vertical direction (the height direction) are different from each other, and the fourth detection is performed. The unit 144 is arranged so that the position in the horizontal direction is different from that of the first detection unit 141 to the third detection unit 143. The first detection unit 141 to the fourth detection unit 144 are opposed to the output units 141a to 144a provided in one of the two U-shaped projections and the output units 141a to 144a of the other projection, respectively. Receivers 141b to 144b provided at the positions to be received. The output units 141a to 144a output magnetism or light, respectively. The receivers 141b to 144b output when the car 6 is not landing on any of the floors and there is no shield between the opposing output units 141a to 144a as shown in FIG. The magnetism or light output from the units 141a to 144a is received. In addition, the reception units 141 b to 144 b transmit information indicating the reception state of magnetism or light from the output units 141 a to 144 a to the control panel 12 via the tail code 11.

  The detected body 15 is attached to the guide rail 13 by an attachment arm 151, and is provided with shielding portions 152a and 152b having a predetermined length in the vertical direction. The shielding part 152a has a length longer than the distance to the output parts 141a to 143a. As shown in FIGS. 4 and 5, the shielding unit 152 a is in non-contact with the landing position detection device 14 when landing on the corresponding landing 8 and the output units 141 a to 143 a and the receiving units 141 b to 143 b. And the magnetism or light output from the output units 141a to 143a is shielded and is not received by the receiving units 141b to 143b. Similarly, when the car 6 reaches the corresponding landing 8, the shielding part 152 b engages between the output part 144 a and the receiving part 144 b in a non-contact manner with the landing position detection device 14, and the output part The magnetism or light output from 144a is shielded and is not received by the receiving unit 144b.

  In the pit below the hoistway 2 is installed a P-wave detector 16 for detecting a P-wave that is an initial fine movement when an earthquake occurs, and the machine room 3 detects an S-wave that is a main movement when an earthquake occurs. An S wave sensor 17 is installed. These P-wave sensor 16 and S-wave sensor 17 are connected to the control panel 12 by a signal line 18 and transmit an earthquake detection signal to the control panel 12 when shaking is detected.

  As illustrated in FIG. 6, the control panel 12 includes a signal reception unit 121, a call registration unit 122, an operation type switching unit 123, and an operation control unit 124. The signal receiving unit 121 includes car call information transmitted from the car 6, position information of the car 6 transmitted from the pulse generator 7, landing call information transmitted from the landing operation panels 9-1 to 9-3, and arrival information. Information indicating the reception state of magnetism or light in the receiving units 141b to 144b transmitted from the floor position detection device 14 and an earthquake detection signal transmitted from the P wave sensor 16 and the S wave sensor 17 are received. The call registration unit 122 registers the car call information and the hall call information received by the signal receiving unit 121. The operation type switching unit 123 switches the operation of the elevator 1 between the normal operation and the earthquake control operation based on the earthquake detection signal from the P wave sensor 16 and the S wave sensor 17 received by the signal reception unit 121. . The driving control unit 124 is the current driving type switched by the driving type switching unit 123, the hall call and car call registered in the call registration unit 122, the position information of the car 6 received by the signal receiving unit 121, Based on the information indicating the reception state of magnetism or light in the receivers 141b to 144b, the operation of the equipment in the hoist 4 and the car 6 is controlled.

<Elevator Operation Using Elevator Control Device According to One Embodiment>
Next, operation | movement of the elevator 1 by this embodiment is demonstrated with reference to the flowchart of FIG. FIG. 7 shows processing executed by the control panel 12 during normal operation, and FIG. 8 shows processing executed by the control panel 12 when the control mode is switched to the earthquake control operation.

  First, during normal operation, when an operation for designating a destination floor is performed on the operation panel 61 in the car 6, car call information indicating the content of the operation is transmitted to the control panel 12 via the tail code 11. Further, when a hall call operation is performed on any of the hall operation panels 9-1 to 9-3, hall call information indicating the operation content is transmitted to the control panel 12 via the signal line 10. In the control panel 12, the car call information transmitted from the car 6 and the hall call information transmitted from the hall operation panels 9-1 to 9-3 are received by the signal receiving unit 121 and registered in the call registration unit 122. . Then, in order to respond to the car call and the hall call registered in the call registration unit 122, the operation control unit 124 controls the operation of the equipment in the hoisting machine 4 and the car 6 ("YES" in S1 and S2). ).

  In this way, when the normal operation is executed, if there is no call registered in the call registration unit 122 (“NO” in S2), the operation control unit 124 determines whether there are passengers in the car 6. It is determined (S3). Whether or not there are passengers in the car 6 is determined by the imaging information of a surveillance camera device (not shown) that images the car 6 and the rope hitch of the main rope that hangs the floor of the car 6 or the car 6. It is determined based on detection information by a load detection device (not shown) installed in.

  Here, if it is determined that there are no passengers in the car 6 (“YES” in S3), the car 6 is closed and moved between floors by the operation control unit 124, and the next hall call registration occurs. (S4, S5 “NO”). When the car 6 is moved between the floors, the first detection unit 141 to the fourth detection unit 144 of the landing position detection device 14 installed in the car 6 and the shielding units 152a and 152b of the detected object 15 are provided. Therefore, even if an earthquake occurs while the car 6 is stopped, these parts are prevented from coming into contact with each other and being damaged. In order to achieve a positional relationship in which the first detection unit 141 to the fourth detection unit 144 and the shielding units 152a and 153b are not engaged with each other and do not overlap at all in the vertical direction, the operation control unit 124 previously stores each floor. Distance (the distance between the floor of the first floor landing 8-1 and the floor of the second floor landing 8-2, and the floor of the second floor landing 8-2 and the floor of the third floor landing 8-3 And the length information in the vertical direction of the detection objects 15-1 to 15-3 are stored, and the position of the destination of the car 6 is determined using these.

  When a hall call operation is performed on any of the hall operation panels 9 while the car 6 is stopped between the floors, hall call information indicating the content of the operation is transmitted to the control panel 12 via the signal line 10. Is done. In the control panel 12, the hall call information transmitted from the hall operation panel 9 is received by the signal reception unit 121 and registered in the call registration unit 122. When a new hall call is registered in the call registration unit 122 (“YES” in S5), the car 6 is once landed on the nearest floor in the direction toward the floor where the hall call operation is performed. Then, an operation for responding to the hall call is performed (S6). Here, the reason why the car 6 is temporarily landed on the nearest floor in the direction of the destination floor is to detect the detected object 15 corresponding to the nearest floor by the landing position detecting device 14 so that the hoistway 2 This is because the control panel 12 grasps the current position of the car 6 inside. Although the position information of the car 6 is also acquired from the pulse generator 7, more accurate position information can be obtained by detecting any detected object 15 by the landing position detection device 14.

  Next, processing executed when an earthquake occurs during normal operation will be described with reference to FIG. When an earthquake occurs and a P wave is detected by the P wave detector 16, a P wave detection signal is transmitted to the control panel 12 and received by the signal receiving unit 121.

  When the P-wave detection signal is received by the signal reception unit 121 (“YES” in S11), the operation type switching unit 123 switches from normal operation to seismic control operation (S12). When the control operation is switched to the earthquake control operation, the operation control unit 124 determines whether the car 6 is landing on any floor (S13). When the car 6 is moving and not landing (“NO” in S13), it is landed on the nearest floor and opened (S14, S15), and the car 6 arrives on any floor. If it is in the floor (“YES” in S13), the door is immediately opened on the floor (S15). When the passenger car 6 is opened at any floor, passengers in the passenger car 6 can get off and take evacuation action.

  When it is detected that there are no passengers in the car 6 after the door of the car 6 is opened (“YES” in S16), the car 6 is closed and moved between the floors and stopped (S17). When the car 6 is moved between the floors, the first detection unit 141 to the fourth detection unit 144 of the landing position detection device 14 and the shielding units 152a and 152b of the detection target 15 are not engaged. It is avoided that these parts come into contact with each other and are damaged by the shaking of the earthquake.

  Here, if the control panel 12 is equipped with an automatic recovery function from the control operation during earthquake to the normal operation (“YES” in S18), the car 6 stops within the floor within a certain time t. The signal receiving unit 121 monitors whether or not an S wave detection signal equal to or greater than a predetermined value or the next P wave detection signal has been received (S19 to S21). This fixed time t is the time until the rope 5 and tail cord 11 sway due to the earthquake is settled. The higher the total height of the hoistway 2 (pit depth + lifting area + overhead height), the longer the preset time is set. ing.

  When a predetermined time t has elapsed without receiving an S wave detection signal and a next P wave detection signal larger than a predetermined value ("NO" in S19, "NO" in S20, "YES" in S21), automatic By the restoration function, the operation type switching unit 123 switches from the control operation during the earthquake to the normal operation, and the normal operation is resumed (S22). When normal driving is resumed and a new hall call is registered in the call registration unit 122 (“YES” in S23), the car 6 is temporarily moved to the nearest floor in the direction toward the floor where the hall call operation is performed. After landing, an operation for responding to the hall call is performed (S24).

  When the control panel 12 is not equipped with the automatic recovery function (“NO” in S18), or the control panel 12 equipped with the automatic recovery function receives an S wave detection signal of a predetermined value or more within a predetermined time t. If this is the case (“YES” in S18, “YES” in S19), normal operation is resumed after the recovery process by the worker (S25), and the process proceeds to step S23. In step S19, the control panel 12 equipped with the automatic recovery function has not received an S wave detection signal of a predetermined value or more within a predetermined time t, but has received a P wave detection signal again due to an aftershock (in S19). In “NO”, “YES” in S20), the process returns to step S19 to newly start counting for a fixed time t.

  According to the above-described embodiment, when the elevator call is not generated, the landing position detecting device and the detected object can be detected even if an earthquake occurs during the stop by moving the car between the floors and stopping it. The damage of the parts due to the contact with can be avoided. In addition, when an earthquake occurs during normal operation, the passengers get off at the nearest floor, and then the car is moved between the floors and stopped, thereby ensuring the safety of the passengers and the landing position detecting device and Contact with the detected object can be avoided, and the normal operation can be quickly restored.

  When the elevator described in the above embodiment is installed in a plurality of buildings, the elevators other than the elevator that is responding to the call are stopped between the floors, and even if a hall call occurs By maintaining the state in which the car is stopped between the floors except for the target elevator, it is possible to avoid damage to the parts due to the earthquake as much as possible.

  Further, in general, an elevator has an engagement razor installed on the upper part of the car door of the car 6, and an engagement roller is installed on the landing door of the hall 8, so that the car 6 can be attached to any floor. When the floor is reached, the engagement razor and the engagement roller are engaged, and the opening / closing of the car door and the opening / closing of the landing door are interlocked. Therefore, in the above-described embodiment, the moving destination when the car 6 is moved between floors is completely in the vertical direction without the first detection unit 141 to the fourth detection unit 144 and the shielding units 152a and 153b being engaged. It is possible to prevent the door device from being damaged by determining the positional relationship so that the engagement razor of the car door and the engagement roller of the landing door do not engage with each other so that the positional relationship does not overlap.

  Further, as in the above-described embodiment, when there is no registered call, the car 6 is stopped between the floors, and when a landing call is generated, it is temporarily stopped at the nearest floor and then moved to the destination floor. Thus, there is a case where the waiting time from when the user performs the hall call operation until the car 6 reaches the hall call operation floor and opens the door may be increased. Correspondingly, when the car 6 is stopped between the floors during normal operation, a landing call operation such as displaying a text character of “Earthquake standby” on the display part of the landing operation panel 9 on each floor is performed. Information that informs the user that the waiting time until the car 6 arrives from the vehicle may be output.

  Although the embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Elevator, 2 ... Hoistway, 3 ... Machine room, 4 ... Winding machine, 5 ... Rope, 6 ... Riding car, 7 ... Pulse generator, 8, 8-1, 8-2, 8-3 ... Platform, 9 , 9-1, 9-2, 9-3 ... landing operation panel, 10 ... signal line, 11 ... tail code, 12 ... control panel, 13 ... guide rail, 14 ... landing position detector, 15, 15-1 15-2, 15-3 ... detected object, 16 ... P wave detector, 17 ... S wave detector, 18 ... signal line, 61 ... in-car operation panel, 121 ... signal receiving unit, 122 ... call registration unit , 123 ... operation type switching unit, 124 ... operation control unit, 141 ... first detection unit, 141a to 144a ... output unit, 141b to 144b ... reception unit, 142 ... second detection unit, 143 ... third detection unit, 144 ... 4th detection part, 151 ... Mounting arm, 152a, 152b ... Shielding part

Claims (6)

Landing on the corresponding floor is the position of the car when the detected object installed in the elevator car and detected at the position corresponding to the landing of each floor in the hoistway is in a non-contact state. In the elevator control device connected to the landing position detection device recognized as a position,
When the elevator call is not generated and there are no passengers in the car, the car is moved so that the landing position detecting device and the detected object do not overlap in the vertical direction. An elevator control device comprising an operation control unit for stopping. Landing on the corresponding floor is the position of the car when the detected object installed in the elevator car and detected at the position corresponding to the landing of each floor in the hoistway is in a non-contact state. In the elevator control device connected to the landing position detection device recognized as a position,
When the occurrence of an earthquake is detected when the car is landing at the landing position recognized by the landing position detection device, the car is opened on the floor where the landing is made, and When it is detected that there is no passenger in the car, an operation control unit is provided to move and stop the car so that the landing position detection device and the detected body do not overlap in the vertical direction. An elevator control device characterized by the above. When the operation control unit detects the occurrence of an earthquake when the car is not landing at the landing position recognized by the landing position detection device, the operation control unit moves the car to the nearest floor. When the door is opened and it is detected that there is no passenger in the car, the car is moved so that the landing position detection device and the detected object do not overlap in the vertical direction. The elevator control device according to claim 2. The operation control unit moves the car so that the landing position detecting device and the detected body do not overlap in the vertical direction, and then generates a new hall call when the hall is generated. The position information of the car was acquired by landing the car on the nearest floor in the direction toward the floor where the operation of the car was performed and detecting the corresponding detected object by the landing position detecting device. 4. The elevator control device according to any one of claims 1 to 3, wherein the position information is used to respond to the new hall call. The operation control unit, when moving the car so that the landing position detection device and the detected object do not overlap in the vertical direction, the car door of the car and the landing door of the hall The moving destination of the car is determined so that the engaging razor of the car door and the engaging roller of the landing door, which are installed to open and close in conjunction with each other, do not engage with each other. Item 5. The elevator control device according to any one of Items 1 to 4. When the operation control unit moves the car so that the landing position detection device and the detected object do not overlap in the vertical direction, the operation control unit allows the user of the hall on each floor to perform a hall call operation. The elevator control device according to any one of claims 1 to 5, wherein information notifying that the waiting time is long is output.

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