JPWO2013175521A1 - Elevator control device - Google Patents

Abstract

The elevator control device selects a non-service elevator from a plurality of elevators and waits at a resonance position for resonance position assignment means (17), and the elevator waiting at the resonance position has a predetermined level of long object shaking. Long-body-sway detector (10A, 10B) for detecting the vehicle and operation control means for controlling the elevator standing by at the resonance position to travel to the non-resonant position when the elevator waiting at the resonance position detects a long-body shake (13A, 13B) and the long object shake detection device (10A, 10B), when the long object shake is detected, the detection result of the long object shake is received from the operation control means (13A, 13B). A control operation control means (16) is provided for controlling the elevators other than the elevator that detects the above to travel to the non-resonant position.

Description

The present invention relates to an elevator control device that performs a control operation by a long object shake detection device installed in a hoistway when a building in which the elevator is installed vibrates due to strong winds or a long-period earthquake.

  Even if the acceleration on the ground surface is about several gals, the building resonates due to a long-period earthquake, and the building resonates and continues to shake for several minutes or more when approaching the natural period of a high-rise building. Moreover, even in strong winds, high-rise buildings sway slowly in the natural period, so that the swaying continues for a long time, for example, from the approaching to the passing of the typhoon. Elevator elevator ropes and cables (hereinafter referred to as long objects) installed in high-rise buildings are also susceptible to slight building shaking, and depending on the position of the car, the long objects resonate with the building shaking, and ascend and descend Contact with or catching on road equipment will cause damage to the elevator.

  As a means for detecting the amount of shaking of the building in stages in order to prevent such damage when long-period shaking occurs, a shaking amount detection device that directly detects the amount of shaking of a long object provided in the hoistway Has been proposed (see, for example, Patent Document 1).

  Also, according to the emergency earthquake information distributed by the Japan Meteorological Agency, the cage was moved to a zone not affected by long-period shaking before the long-period earthquake arrived, and convergence of the long-period earthquake was installed in the machine room above the building A control operation has been proposed in which the operation of the elevator is restored by checking with a pendulum sensor (see, for example, Patent Document 2).

  Also, based on the vibration meter installed in the upper part of the hoistway or the upper part of the building, the amount of long object shake is calculated every time, and the car is stopped at the destination floor or the nearest floor based on the amount of long object shake. A step-by-step control operation is also proposed in which the speed limit operation is performed when the shake amount is small, the operation is stopped when the shake amount is medium, and the operation is stopped when the shake amount is large (for example, And Patent Document 3).

Japanese Utility Model Publication No. 60-3764 (first page and FIG. 2) JP 2007-153520 A (paragraphs 0058 to 0060 and FIG. 14) JP 2008-230771 (paragraphs 0017 to 0039 and FIG. 7)

  However, since the shake amount detection device described in Patent Document 1 directly detects the shake amount generated in the long object of the elevator, the detection accuracy is high, but the shake of the building itself can be detected. Can not. Therefore, normal operation is continued when the building is shaking, and control operation is performed for the first time at the stage when a long object shakes.Therefore, inspection operation is required to return to normal operation, and many operations are required before returning. Was spending time.

  In addition, although the means for controlling the control operation by the emergency earthquake information and the pendulum sensor described in Patent Document 2 can detect the shaking of the building itself, the amount of vibration generated in the long object of the elevator can be accurately determined. Since it was not possible to make a judgment, it was difficult to implement appropriate control operation. For example, there is a possibility that the car may be moved to a zone (hereinafter referred to as a non-resonant floor) that is not affected by long-period shaking even when a long object is not shaken at the time of control operation transition. When returning from operation, it was necessary to check the operation by inspection operation.

  In addition, as in Patent Document 2, the means for detecting minute shaking generated in the building by the vibrometer installed in the upper part of the hoistway or the upper part of the building described in Patent Document 3 can detect the shaking of the building itself. Although it is possible, it is expensive because a highly accurate sensor is required, and it is difficult to handle it with great care. And it could not be applied to a high-rise building where the height of the building exceeds 9 m because it is difficult to detect the shaking of the building.

  This invention was made in order to solve the above-mentioned subject, and when a building shake has occurred by making a non-service elevator among a plurality of elevators stand by at a resonance position, it is long. Because of the shaking of the objects, elevators that are servicing other than the resonance floor can be shifted to control operation at an early stage, and damage caused by contact or catching of long objects on hoistway equipment can be prevented. An object of the present invention is to provide a control device for an elevator.

  The elevator control device according to the present invention selects and assigns a non-service elevator among a plurality of elevators managed as a group, and waits at a preset resonance position where the long swing of the elevator increases. An allocating means, a long object swing detecting device for detecting a predetermined level of long object swaying of the elevator assigned to the resonance position allocating means, and a predetermined level length of the elevator waiting at the resonance position by the allocation of the resonance position allocating means. When the long object shake detection device detects the swing of the scale, the operation control means for controlling the elevator that has been waiting at the resonance position to travel to a preset non-resonance position where the long article swing of the elevator does not increase, When the vibration detection device detects a predetermined level of a long object shake, it receives a detection result of the predetermined level of the long object shake from the operation control means, A control operation control means for controlling so as to run the other elevators of the elevator that detects an object shake to the non-resonance position, those having a.

  According to the elevator control device according to the present invention, when a building shake is generated by causing a non-service elevator among a plurality of elevators to stand by at a resonance position, a swing of a long object occurs. Elevators that are providing services outside the resonance floor can be shifted to control operation at an early stage, and it is possible to prevent damage caused by contact or catching of long objects on hoistway equipment.

1 is an overall configuration diagram of an elevator according to Embodiment 1 of the present invention (only No. 1 is shown). It is a top view in a hoistway in Embodiment 1 of this invention (only No. 1 machine is shown). 1 is a configuration block diagram of an elevator control device in Embodiment 1 of the present invention. It is a detection flow figure of a long thing shaking in Embodiment 1 of this invention. It is a selection flow figure of control operation in Embodiment 1 of this invention. It is a cancellation | release flowchart of the control operation in Embodiment 1 of this invention.

Embodiment 1 FIG.
Hereinafter, an elevator control apparatus according to Embodiment 1 of the present invention will be described with reference to the drawings. In the reference numerals in the figure, A is No. Unit 1 configuration, B is No. The configuration of Unit 2 is shown, and since the configurations of A and B are the same, the description thereof is omitted.

  1 is an overall configuration diagram of an elevator according to Embodiment 1 of the present invention (No. 1 only). The elevator car 2A moving in the elevator hoistway 1A is connected by a counterweight 3A and a main rope 4A (long object), and the elevator 5A around which the main rope 4A is wound is rotated to thereby lift the elevator. The cage 2A and the counterweight 3A are lifted and lowered in a fishing bottle manner. Reference numerals 6A-1 to 6A-3 denote landings of the respective floors. By controlling the rotation of the hoisting machine 5A by the operation control means described later installed in the elevator control panel 7A, the elevator car 2A is applicable. It can be stopped at the landing. The elevator control panel 7A is provided in the elevator machine room or the hoistway.

  Further, the long object shaking detection device (not shown) is a main rope which is a long object based on the operation signals of the sensors in the longitudinal direction 8A-x and the sensor in the lateral direction 8A-y installed in the hoistway 1A. The long period fluctuation occurring in 4A is directly detected. Here, the front-rear direction refers to, for example, the depth direction of the car, and the left-right direction refers to a direction substantially orthogonal to the depth direction of the car. The sensor is composed of, for example, a light projector that emits light and a light receiver that receives light, and directly detects the swing of the main rope 4A by blocking the light.

  2 is a plan view (only No. 1 machine) in the elevator hoistway according to the embodiment of the present invention. For example, front and rear sensors 8A-x1 and 8A-x2 are provided on opposite hoistway walls in the front-rear direction, that is, the car depth direction. The front-rear sensor 8A-x1 is installed at a position slightly away from the main rope 4A (for example, 50% of the distance from the main rope to the hoistway device). The front-rear sensor 8A-x2 is installed at a position farther from the main rope 4A than the sensor 8A-x1 (for example, 90% of the distance from the main rope to the hoistway device).

  For example, sensors 8A-y1 and 8A-y2 in the left-right direction are provided on the hoistway walls facing and opposite to the hoistway wall provided with the sensors in the front-rear direction. The sensor 8A-y1 in the left-right direction is installed at a position slightly away from the main rope 4A (for example, a position that is 50% of the distance from the main rope to the hoistway device). Also, the left-right sensor 8A-y2 is installed at a position farther from the main rope 4A than 8-Ay1 (for example, 90% of the distance from the main rope to the hoistway device).

  FIG. 3 is a block diagram showing the configuration of the elevator control apparatus according to Embodiment 1 of the present invention. The elevator control device 9 includes a long object shake detection device 10 and an elevator control panel 7 included in each elevator unit, and a group management panel 15 having a function of managing a plurality of elevators in the same bank. . The long object swing detection device 10 detects the swing of the main ropes, which are long elevators, based on the signal from the sensor 8, and the elevator control panel 7 controls the operation of the elevator car. . The long object shake detection device 10 is connected to the elevator control panel 7.

No. The long object shake detection device 10A of Unit 1 is composed of a level 1 detection means 11A for detecting a small level long object shake and a level 2 detection means 12A for detecting a large level long object shake.
The level 1 detection means 11A provided in the long object shake detection device 10A is based on the operation signals from the longitudinal sensor 8A-x1 and the lateral sensor 8A-y1 installed in the hoistway 1A. The detection judgment of a long object shake (hereinafter, level 1), which is the first reference level, is performed. The level 2 detection means 12A provided in the long object shake detection device 10A is based on the operation signals from the longitudinal sensors 8A-x2 and the lateral sensors 8A-y2 installed in the hoistway 1A. Furthermore, detection judgment of a long object swing (hereinafter, level 2), which is a second reference level that is higher than the first reference level, is performed. Note that it is not always necessary to provide sensors in two stages and detect and judge in two stages, level 1 and level 2, and only level 1 sensors may be provided.

The elevator control panel 7A includes an operation control means 13A that controls the control operation of the elevator car and a car position detection means 14A that detects the position of the car.
The operation control means 13A provided inside the elevator control panel 7A includes a detection signal level 1 of a long object shake detected by the long object shake detection device 10A, and an elevator car position information from the car position detection means 14A. Based on this, control of control operation is implemented to prevent damage when long-period shaking occurs. Specifically, when the long-body shaking detection device 10A detects a long-body shaking detection signal level 1, the operation control means 13A uses the above-mentioned cage position information as the control operation to increase the rope shaking. The drive of the hoisting machine is controlled so as to move the elevator car to a preset non-resonant floor (or non-resonant position). Further, when the operation control means 13A receives the detection result of the long object shake, the operation control unit 13A transmits the detection result of the long object shake to the group management panel 15 that performs operation management control with a plurality of elevators as a group. Normally, the elevator travels to the non-resonant floor before the long object swing detection device 10A detects level 2, but the rope swing grows until the elevator moves to the non-resonant floor and the long object swing detection device 10A. When the detection signal level 2 is detected, the operation control means 13A controls to stop the operation of the elevator.

  The car position detection means 14A is an encoder attached to the rotating shaft of the hoist, for example, and can detect the position of the elevator car by adding / subtracting the encoder pulse signals. Further, the car position detecting means 14A may detect the car position correspondingly to detection plates (not shown) installed on each wall of the hoistway as the elevator car moves up and down.

  The group management panel 15 is connected to each elevator control panel 7 and performs operation management control of a plurality of elevators as a group. The group management panel 15 has a control operation control means 16 for determining whether each car is to be controlled or normally operated, and a resonance floor assignment means 17 for assigning a car to stand by at the resonance floor (or resonance position) where the rope swing increases. The control operation control means 16 and the resonance floor assignment means 17 are connected to each other.

  The resonance floor allocating means 17 provided in the group management panel 15 has a function of selecting one of the elevator cars that are not in service in the bank and waiting on the resonance floor. Here, the resonance floor refers to a floor where the vibration of the rope increases with the vibration of the building, and is set in advance according to the natural period of the building, the specifications of the elevator and the rope, and the like.

  The control operation control means 16 provided in the group management panel 15 is a long object of the elevator waiting on the resonance level transmitted from the operation control means 13A and the operation status of each elevator such as whether the service is completed. Based on the result of the vibration detection, it has a function of determining whether to continue normal operation of another elevator that has not yet detected vibration or to shift to a control operation toward a non-resonant floor. In addition, the control operation control means 16 determines whether or not the shaking of the building has converged based on the inspection operation status when the elevator that has moved from the resonance floor to the non-resonance floor has returned to normal operation. It has a function of determining whether or not an elevator that has not detected the swing of the scale is to be returned from the control operation to the normal operation.

  Next, the operation of the elevator control apparatus having the above-described configuration will be specifically described. FIG. 4 is a flow chart for detecting a long object shake according to the first embodiment of the present invention. In step S101, the resonance floor allocating means 17 provided in the group management panel 15 determines whether or not there is a non-service elevator in the bank at the normal time. When there is no non-service elevator, that is, when all elevators are in service, the operation control means 13 of each elevator control panel 7 controls to continue the normal operation service in step S102. “Non-service” means that there is no landing call or car call and there is no user.

  If there is a non-service elevator among the plurality of elevators managed as a group in step S101, the resonance floor assignment means 17 selects and assigns one of the non-service elevators in step S103, and determines it in advance. The operation control means 13 of the elevator control panel 7 is instructed to run and stand by on a resonance floor where the vibration of the long object increases. At this time, for example, when there are a plurality of non-service elevators, it is possible to select the non-service elevator closest to the resonance floor, travel to the resonance floor, and wait. As a result, an elevator having a short distance to the resonance floor is selected, so that less power is consumed.

  Next, in step S104, when a landing call is generated, a landing call is registered in a landing call registration device (not shown) included in the group management board 15, and a landing call is assigned to a waiting elevator in the resonance floor. When the means 17 determines, it progresses to step S102. In step S102, the control operation control means 16 receives the assignment result from the resonance floor assignment means 17, and issues a command to the normal operation service to the operation control means 13 of the waiting elevator on the resonance floor. The operation control means 13 controls to start a normal operation service.

  On the other hand, if no hall call assignment has occurred in the elevator waiting in the resonance floor in step S104, the operation control means 13 in step S105 determines the length of the elevator waiting in the resonance floor by the assignment of the resonance floor assignment means 17. Whether the long object shake detection device 10 has detected the object shake is determined based on the detection result from the level 1 detection means 11 of the long object shake detection device 10.

  If the elevator waiting on the resonance floor in step S105 has not detected shaking of a long object, the process returns to step S104 and the standby on the resonance floor is continued. As a result, it is possible to quickly determine that the shaking of the building has occurred from the shaking of the long object by causing the non-service elevator to stand by on the resonance floor where the shaking of the rope increases. When the operation control means 13 of the unit waiting on the resonance floor in step S105 determines that the long object shake is detected based on the detection result of the long object shake, the operation control means 13 starts the control operation in step S106. To control. Further, when the operation control means 13 receives the level 1 detection result from the level 1 detection means 11 in step S105, the operation control means 13 transmits the detection result to the control operation control means 16 of the group management panel.

  FIG. 5 is a flowchart for selecting the control operation of the control operation control means 16 provided in the group management panel 15 according to the first embodiment of the present invention. When an elevator that has detected a long object shake is generated in the bank, that is, when the control operation control means 16 receives the detection result of the level 1 detection means 11 of the elevator waiting on the resonance floor from the motion control means 13, In S201, the control operation control means 16 prohibits all landing calls and prevents the occurrence of new users, and continues the service of registered car calls, thereby continuing the service of users in the car. In this case, elevators other than the elevator that waits on the resonance floor and detects a long object shake have not yet detected the long object shake when the elevator waiting on the resonance floor detects the long object shake. It is preferable to give priority to the service. Of course, when the elevator waiting on the resonance floor detects a long object shake, the elevator car may be controlled to move to the non-resonance floor after the user in the car gets off at the nearest floor. .

  In step S202, the control operation control means 16 determines whether there is an elevator that has completed the service in response to the registered car call. If there is still only an elevator in service, the process returns to step S201 to continue the registered car call service. If there is an elevator that has completed the service in response to the registered car call in step S202, the operation control means 13 is instructed to sequentially shift the elevator that has completed the service to the control operation in step S203. Thereby, the operation control means 13 of the elevator control panel 7 that has received a command from the control operation control means 16 provided in the group management panel 15 starts the control operation.

  If all elevators in the bank have not shifted to the control operation in step S204, the process returns to step S201 to continue the service of the elevator for which the registered car call service is incomplete. When all the elevators in the bank have shifted to the control operation in step S204, the control operation control means 16 provided in the group management panel 15 finishes the control operation shift determination.

  FIG. 6 is a flowchart for canceling the control operation according to the present invention. In step S301, the operation control means 13 of the car that has traveled to the non-resonant floor as a control operation after waiting for the resonance floor determines whether it has waited for a predetermined time (for example, 10 minutes) on the non-resonance floor. If the predetermined time has not elapsed, the standby at the non-resonant floor is continued in step S301.

  When the predetermined time has passed in step S301, the operation control means 13 of the elevator control panel 7 travels to the resonance floor again and waits in step S302. The elevator operation control means 13 that has traveled to the resonance floor in step S303 detects whether the long object shake is detected again within a predetermined time (for example, 1 minute) at the resonance position. Judgment is made based on the detection result of the means 11.

  If a long object shake is detected in step S303, it is determined that the building shake continues, and in step S304, the operation control unit 13 causes the elevator to travel to the non-resonant floor again, and the predetermined time (step S301) (For example, 10 minutes) Waiting is performed.

  If the long object shake is not detected again in step S303, the operation control means 13 transmits to the control operation control means 16 provided in the group management panel 15 that the long object shake has not been detected for a predetermined time. In step S305, the control operation control means 16 determines that the building shake has converged, and each operation control means is set to return each elevator that is standing by on a non-resonant floor and that does not detect a long object shake to normal operation. 13 is instructed. And each operation control means 13 returns an elevator to normal operation. As a result, the elevator that does not detect the shaking of the long object can be returned to the normal operation without performing the inspection operation. The operation control means 13 of the elevator control panel 7 that has detected a long object shake starts an inspection operation in step S306 in order to determine whether the elevator can operate normally due to the damage of the long object shake. As the inspection operation, for example, the elevator is reciprocated at a low speed, and it is automatically diagnosed whether there is no equipment damage due to an earthquake or whether the elevator travels. It should be noted that since the control operation is made to wait for the non-resonant floor at the level 1 detection stage before the level 2 is detected, it is not always necessary to perform the inspection operation for the elevator that has traveled from the resonance floor to the non-resonant floor. Further, when the elevator travels to the resonance floor in step S302, the equipment may be inspected.

  As described above, according to the configuration of the first embodiment of the present invention, when one of the elevators in the bank that is not in service is placed on standby at the resonance floor, a long object is generated when the building shakes. Since shaking occurs, it is possible to detect shaking of a long object earlier than other elevators when building shaking occurs. As a result, when the elevator waiting on the resonance floor detects the swing of the long object, it has not yet detected the swing of the long object, and other elevators in service other than the resonance floor are shifted to the control operation at an early stage. It is possible to prevent damage caused by contact or catching of long objects with hoistway equipment.

  In addition, on the basis of the inspection operation result when the elevator moved from the resonance floor to the non-resonance floor is returned to the normal operation, the inspection operation is not required when returning to the normal operation in each elevator other than the elevator moved from the resonance floor to the non-resonance floor. It is possible to shorten the time until return.

  The present invention can be applied not only to earthquakes and strong winds but also to any shaking. Further, in the present embodiment, the position where the non-service car is on standby is not limited to the resonance floor where the long object shake increases, and may be a resonance position where the long object shake increases. Similarly, the position where the elevator is evacuated by the control operation is not limited to the non-resonant floor where the long object shake does not increase, and may be a non-resonant position where the long object shake does not increase.

1A hoistway, 2A elevator car, 3A counterweight, 4A main rope, 5A hoist, 6A-1 to 6A-3 landing, 7A elevator control panel, 8A-x, 8B-x longitudinal sensor, 8A-y , 8B-y Left and right sensor, 9 Elevator control device, 10A, 10B Long-body shaking detection device, 11A, 11B Level 1 detection means, 12A, 12B Level 2 detection means, 13A, 13B Operation control means, 14A, 14B Car position detection means, 15 group management panel, 16 control operation control means, 17 resonance floor allocation means.

Claims (6)

Resonant position allocating means for selecting and allocating a non-service elevator among a plurality of elevators managed as a group, and waiting at a preset resonance position where a long object swing of the elevator increases;
A long object swing detection device for detecting a predetermined level of long object swing of the elevator assigned to the resonance position assigning means;
When the long object shaking detection device detects the predetermined level of shaking of the elevator waiting at the resonance position by the allocation of the resonance position allocating means, the elevator waiting at the resonance position is Operation control means for controlling the vehicle to travel to a preset non-resonant position where the increase does not increase,
When the long object shake detection device detects the predetermined level of long object shake, the apparatus receives the detection result of the predetermined level of long object shake from the operation control means, and other than the elevator that has detected the long object shake. Control operation control means for controlling the elevator to travel to the non-resonant position;
An elevator control device comprising:   The operation control means detects a predetermined level of a long object shake at the resonance position and causes the elevator that has traveled to the non-resonance position to wait for a predetermined time at the non-resonance position, and then travels to the resonance position again. The control operation control means controls the other elevator to return to a normal operation when the predetermined level of the long object shake by the long object shake detecting device is not detected at the resonance position. The elevator control device according to claim 1.   In the case where the predetermined level of long-body vibration at the resonance position of the elevator that has traveled again to the resonance position is not detected, the control operation control means starts the inspection operation of the elevator that has detected the long-body vibration The elevator control device according to claim 2, wherein the control is performed so that the other elevator is returned to the normal operation without the inspection operation.   2. The elevator according to claim 1, wherein when the control operation control means receives the detection result of the long-length object shake at the predetermined level, the control operation control unit sequentially controls the elevators that have completed service to travel to the non-resonant position. Control device.   2. The elevator control according to claim 1, wherein when a hall call is assigned to an elevator that is waiting at the resonance position, the control operation control unit performs control so that the elevator that is waiting at the resonance position is normally operated. apparatus.   6. The elevator control device according to claim 1, wherein the resonance position allocating unit selects and assigns an elevator closest to the resonance position when there are a plurality of non-service elevators. .

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