CN108861934B - Elevator control device, control method, and elevator control system - Google Patents

Abstract

Provided is an elevator, which can prevent the damage of the clamping unit of a car door and the clamping unit of a passenger door caused by earthquake shaking. The disclosed device is provided with: a receiving unit (113) which receives an emergency earthquake fast report issued after an earthquake occurs; a control device (101) for controlling the operation of the elevator; and a car (103) that is raised and lowered by a motor (102) driven and controlled by the control device (101), a boarding gate (110) that is provided at a boarding location at each floor of the building, and the control device (101) moves the car (103) to a position where the boarding gate (110) and the car (103) do not engage with each other when the reception unit (113) receives the earthquake early warning.

Description

Elevator control device, control method, and elevator control system

Technical Field

The present invention relates to a control device and a control method for an elevator, and a control system for an elevator.

Background

In recent years, various measures have been proposed, such as issuing an earthquake early warning immediately after an earthquake occurs by using a network or satellite communication, and taking effective countermeasures against the earthquake before the arrival of the earthquake' S main earthquake (S-wave). For example, there is proposed a technique of, when an earthquake early warning is received, retracting a car to a position where the amplitude of a main rope or the like is minimum to reduce damage to an elevator caused by sway (see patent document 1).

[ patent document 1] Japanese patent application laid-open No. 2008-254862

Disclosure of Invention

Technical problem to be solved by the invention

In the technique described in patent document 1, when an earthquake early warning is received, the car is moved to a position where the amplitudes of the main rope and the tail rope are minimum, thereby reducing damage to the elevator caused by the main earthquake. However, the technique described in patent document 1 does not take into consideration damage to the door operator. The doors of the elevator are engaged with each other at the landing positions of each floor by respective engaging means of the car door and the landing door, and the operation is realized by transmitting the power of the car door to the landing door. When the elevator is in a position where the car door and the landing door are engaged with each other, the engaging unit of the car door and the engaging unit of the landing door may be violently collided and damaged due to the earthquake.

Accordingly, an object of the present invention is to solve the above-described problems and provide an elevator control device, an elevator control method, and an elevator control system that can prevent damage to an engaging means of a car door and an engaging means of a landing door due to earthquake fluctuation.

Technical means for solving the technical problems

The invention is developed for realizing the aim, and is characterized in that the invention provides a control device of an elevator, which is provided with a receiving unit, a control unit and a control unit, wherein the receiving unit is used for receiving an emergency earthquake early warning issued after an earthquake occurs; a control device for controlling the operation of the elevator; a motor driven and controlled by the control device; a car that is raised and lowered by the motor; a car door provided in the car and opened and closed by a door motor; a boarding door provided at a boarding location of each floor of a building; a boarding gate engagement unit provided at the boarding gate; and a car door engaging unit that engages with the landing door engaging unit and opens and closes the landing door in accordance with an opening and closing operation of the car door, wherein the control device further includes a door-engagement avoidance operation control unit that moves the car to a position where the landing door engaging unit and the car door engaging unit do not engage with each other when the receiving unit receives the earthquake early warning.

Further, the present invention is characterized by providing an elevator control method including a step of moving a car to a position where a boarding door and a car door do not engage with each other when an earthquake early warning is received, the method including a step of receiving the earthquake early warning issued after an earthquake occurs, and controlling the elevator.

Still another feature of the present invention is to provide a control system for an elevator, including a plurality of elevators each having a control device for controlling operation of the elevator; a motor driven and controlled by the control device; a car that is raised and lowered by the motor; a car door provided in the car and opened and closed by a door motor; a boarding door provided at a boarding location of each floor of a building; a boarding gate engagement unit provided at the boarding gate; and a car door engaging unit that engages with the landing door engaging unit, wherein the landing door is opened and closed according to an opening and closing operation of the car door, wherein 1 of the plurality of elevators is provided with a receiving unit that receives an earthquake early warning issued after an earthquake occurs, the control devices of the plurality of elevators are connected by a communication line, and each of the control devices further includes a door-engagement avoidance operation control unit that moves the car to a position where the landing door engaging unit and the car engaging unit do not engage with each other when the receiving unit receives the earthquake early warning.

Effects of the invention

The present invention can provide an elevator control device, an elevator control method, and an elevator control system that can prevent damage to the engaging means of the car door and the engaging means of the landing door due to earthquake fluctuation.

Drawings

Fig. 1 is an overall structural view of one embodiment of the present invention.

Fig. 2A is a plan view of the closed state of the boarding door and the car door.

Fig. 2B is a plan view of the open state of the boarding door and the car door.

FIG. 3 is a block diagram of one embodiment of the present invention.

Fig. 4 is a flowchart showing the overall processing steps according to an embodiment of the present invention.

FIG. 5 is a flowchart illustrating the processing steps of receiving an earthquake early warning, in accordance with an embodiment of the present invention.

Fig. 6 is a flowchart showing the processing procedure of the 1 st managed operation control means according to the embodiment of the present invention.

Fig. 7 is a flowchart showing the processing procedure of the 2 nd managed operation control means according to the embodiment of the present invention.

Fig. 8A is a side view showing a state where the car is parked below the floor of the boarding area.

Fig. 8B is a side view showing a state where the car is stopped at a position higher than the floor of the boarding area.

Fig. 9 is an overall configuration diagram showing a plurality of elevators according to another embodiment of the present invention.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, the following description will be made by taking a single-deck elevator as an example.

[ example 1]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention, FIG. 2A is a plan view showing a closed state of a car door and a landing door, fig. 2B is a plan view of the open state of the boarding door and the car door, fig. 3 is a block diagram of an embodiment of the present invention, fig. 4 is a flowchart showing the overall processing procedure according to an embodiment of the present invention, fig. 5 is a flowchart showing the processing procedure when an earthquake early warning is received according to an embodiment of the present invention, FIG. 6 is a flowchart showing the processing procedure of the No. 1 managed operation control means according to the embodiment of the present invention, FIG. 7 is a flowchart showing the processing procedure of the 2 nd managed operation control unit according to an embodiment of the present invention, fig. 8A is a side view showing a state where the car is parked at a position lower than the floor of the landing, and fig. 8B is a side view showing a state where the car is parked at a position higher than the floor of the landing.

First, the overall configuration of the present embodiment will be described with reference to fig. 1 and 2. In fig. 1, a building in which an elevator is installed includes a control device 101 for controlling the operation of the elevator, a motor 102 driven and controlled by the control device 101, a car 103 lifted and lowered by the motor 102 through a rope, and a counterweight 104 balanced with the car 103. The car 103 moves up and down in the elevator shaft along a rail (not shown) provided in the elevator shaft. The car 103 is provided with a load detection device 105 for detecting a load in the car, and the load in the car 103 is detected by detecting, for example, a sinking of a passenger when the passenger enters the car 103 by a non-contact sensor. The passenger can log in to the destination floor by operating the in-car operation panel 106. A baffle plate 108 is attached to the lower part of the car to fill a gap between the car 103 and the flat bed position when the car 103 is displaced from the flat bed position. A passenger waiting at the boarding floor calls the car 103 to go to the boarding floor by operating the boarding floor call button 109.

An encoder 107 for detecting the position of the car 103 is connected to the motor 102. The encoder 107 generates a pulse signal in synchronization with the rotation of the motor 102, and outputs the signal to the control device 101. The control device 101 detects the position of the car 103 by counting the received pulse signals. Further, the control device 101 is connected to an earthquake sensor 112 capable of detecting a shake at the time of occurrence of an earthquake and a receiving unit 113 capable of receiving an emergency reception prompt.

A car door 111 provided in the car 103 is opened and closed by a door motor 114 provided in an upper portion of the car 103. On the other hand, the landing doors 110 provided at the respective floors of the building are also opened and closed by the operation of the door motor 114. That is, the car door 111 and the landing door 110 are provided with door engagement devices 200 facing each other in a plan view, and when the car is on a flat floor, power of the door motor 114 is transmitted to the landing door 110 through the door engagement devices 200 by mutual engagement of the door engagement devices 200 to perform opening and closing operations.

The door engagement device 200 includes an engagement roller 201 (a landing door engagement means) provided to the landing door 110, and an engagement element 202 (a car door engagement means) provided to the car door 111 so as to protrude toward the landing area, and arranged on both sides of the engagement roller 201 when the landing is flat. The engaging roller 201 and the engaging element 202 are arranged as shown in fig. 2A when each layer is flattened. When the door is opened, the car door 111 is opened by the power of the door motor 114. When the car door 111 is opened, the engaging element 202 and the engaging roller 201 engage with each other, and the passenger door 110 is opened (fig. 2B). When the door is closed, the engaging element 202 and the engaging roller 201 are engaged with each other, and the power of the door motor 114 is transmitted to the passenger door 110, so that the passenger door 110 is closed.

Next, the structure of the present embodiment will be described with reference to fig. 3. The receiving unit 113 is a unit for receiving an earthquake early warning issued after an earthquake occurs. The control device 101 is provided with a car state determination means 301. The car state determination means 301 receives a pulse signal synchronized with the rotation of the motor 102 from the encoder 107, and detects the position of the car 103. In addition, the load detection device 105 receives a signal and detects whether or not there is a passenger based on the load of the car 103. Further, operation information for operating the in-car operation panel 106 and the boarding area call button 109 is detected.

This embodiment has: a 1 st control operation control unit 302 which stops the car 103 at the nearest floor when the receiving unit 113 receives the earthquake early warning and the information of the car state judging unit 301 indicates that passengers are in the car 103; and a 2 nd controlled operation control means 303 for operating the car to a position where the car door 111 does not engage with the landing door 110 when there is no passenger in the car 103. The present embodiment is characterized by including a door-engagement avoidance operation control means (the control operation control means 303 of the 2 nd) for moving the car 103 to a position where the car door 111 and the landing door 110 do not engage with each other when the earthquake early warning is received.

Next, the processing procedure of the present embodiment will be described with reference to fig. 4. The control device 101 first performs a normal operation in a normal operation processing step (S402) after the elevator is powered on and then performs an initial processing step (S401). The control device 101 monitors the earthquake early warning reception status of the reception unit 113, and if the earthquake early warning is not received (no in S403), continues the normal operation processing step (S402). When the earthquake early warning is received (yes in S403), a control operation process is performed in S404.

Next, the details of the control operation processing will be described with reference to fig. 5. When the emergency earthquake prompt report is received, the elevator can be damaged by an earthquake, so that the elevator cannot normally operate, and therefore the elevator needs to be stopped before the earthquake shaking arrives. In this embodiment, when the control device 101 determines that there is a passenger in the car 103, priority is given to the passenger leaving the car 103, and when it determines that there is no passenger in the car 103, control is performed with priority given to preventing the car 103 from being damaged. First, information on the car state is acquired in step S501. The information on the state of the car includes, for example, presence or absence of a car call, a landing call entry, a load in the car, a car position, and a traveling state.

In the step of determining whether or not the car 103 can travel, if it is determined that the car 103 is traveling (yes in S502), it is determined in S503 whether or not there is a car call registration. When a car call is registered (yes in S503), it is determined that a passenger is present in the car 103, and the step 1 of the controlled operation control means 302 is performed to save the passenger with priority (S504), so that the passenger leaves the car 103 even if the car 103 stops at the nearest floor.

When the car call is not registered (no in S503), since the vehicle travels due to the boarding area call, it is determined that there is no passenger in the car 103, and the step (S506) of the 2 nd controlled operation control means 303 is performed to preferentially prevent the car 103 from being damaged, even if the car 103 stops at a position where the door is not engaged. When the car 103 has stopped in S502 (no in S502), when the door closed state has elapsed for a predetermined time or longer (yes in S507), and when the load in the car 103 is equal to or less than a predetermined value (yes in S508), it is determined that there are no passengers in the car 103, and the step of the 2 nd controlled operation control means 303 is performed (S506).

When the time for which the elevator is not operated has elapsed after the completion of the service, for example, 1 minute or more, it is determined that there is no passenger in the car 103. In S507, when the door closed state does not pass the predetermined time or more (no in S507), or when the load in the car 103 is equal to or more than a predetermined value, for example, a numerical value such as 30kg that a passenger is considered to be seated (no in S508), the step (S504) of the 1 st controlled operation control means 302 is performed because there is a possibility that a passenger is loaded in the car 103. After the step (S504) of the 1 st controlled operation control means 302 and the step (S506) of the 2 nd controlled operation control means 303 are performed, the elevator enters the suspended state.

When an earthquake occurs after the earthquake early warning is received, and the earthquake sensor 112 is started due to shaking or the elevator is stopped due to detection of a fault due to shaking (yes in S510), the machine may be damaged, and thus a maintenance worker performs recovery of the fault state and confirmation of the operation and performs recovery (S512). In addition, if the earthquake sensor 112 is not activated (no in S510), it is determined that the sway has no effect on the elevator, and after a predetermined time has elapsed (yes in S511), the elevator automatically returns to normal operation (S512). In S511, the rest state is continued for, for example, 1 minute in consideration of the shaking subsidence and the occurrence of aftershock. When the predetermined time has not elapsed in S511 (no in S511) and the recovery by the maintenance worker has not been performed (no in S513), the elevator continues to be in the suspended state.

Next, the processing procedure of the 1 st regulation operation control means 302 and the 2 nd regulation operation control means 303 will be described with reference to fig. 6 and 7. Fig. 6 shows a processing procedure of the 1 st controlled operation control means 302 for stopping the car 103 to the nearest floor and separating passengers from the car 103, and fig. 7 shows a processing procedure of the 2 nd controlled operation control means 303 for stopping the car 103 to a position where the doors are not engaged. When the 1 st management operation control means 302 is implemented in S504, the nearest floor leveling operation is performed in S601. When the nearest floor is reached, the door is opened and the passengers in the car 103 are reminded to leave (S602).

After a sufficient time for the passenger to leave the car 103 has elapsed (yes in S603), the door is closed (S604), and the elevator enters a resting state (S605).

On the other hand, when the 2 nd control operation control means 303 is executed in S506, the vehicle travels to the nearest floor (S701), and when a position where the door above the boarding floor is not engaged is detected (yes in S702), the vehicle enters the suspended state (S703).

The position at which the car 103 stops is a position at which the door is not engaged, that is, a position at which the engaging roller 201 and the engaging element 202 are not engaged. This prevents the engaging roller 201 and the engaging element 202 from being damaged by a violent impact due to seismic oscillation. In general, the position at which the door is engaged does not vary depending on the floor surface. Therefore, the car 103 is stopped at a position where the position of the car 103 is detected to be not less than a predetermined height from the floor of the closest floor where the car moves, based on the output signal of the encoder 107.

In addition, when the elevator fails and cannot move due to an earthquake, the maintenance worker enters the car 103 and performs the recovery operation. In this case, in the present embodiment, the stopping position of the car 103 is set above the floor of the boarding area, so that the operator can easily enter the car 103, and the operability is improved. That is, in the state shown in fig. 8A in which the car 103 stops at the position where the door below the floor of the boarding area is not engaged, when the maintenance worker confirms the inside of the car 103, the floor of the car is lower than the boarding area, and the worker is difficult to enter the car 103, and the operability is poor. In the state shown in fig. 8B where the door resting on the car floor above the boarding area floor is not engaged, the operator can easily enter the car 103, and not only the operability of the recovery operation is improved, but also the gap between the boarding area and the car floor can be filled with the baffle 108, thereby improving the safety. Therefore, the stop position of the car 103 is preferably a position where the door above the floor on which the car rides is not engaged. If the time before arrival of the earthquake main is included in the received data of the earthquake early warning, the 1 st control operation control means 302 may be implemented and then the 2 nd control operation control means 303 may be implemented, if buffering is performed for a predetermined time. The predetermined time is the time required for the car to move to a position where the door is not engaged. At the moment, the door machine can be prevented from being damaged due to earthquake while ensuring the safety of passengers.

As described above, in the present embodiment, since the control operation control is provided and the car 103 is moved to the position where the car door 111 and the landing door 110 do not engage with each other when the earthquake early warning is received, the door operator can be prevented from being damaged. In addition, in the embodiment, the elevator can be recovered as early as possible in an earthquake by preventing the damage of the door motor. Further, according to the present embodiment, the efficiency and safety of the recovery work by the maintenance worker can be improved.

[ example 2]

Next, another embodiment of the present invention will be described with reference to fig. 9. Fig. 9 is an overall configuration diagram showing a plurality of elevators according to another embodiment of the present invention. The same components as those in embodiment 1 are denoted by the same reference numerals.

In fig. 9, a plurality of (3 in the present embodiment) elevators are installed in a building (not shown), and a control system for the elevators is constructed. The control devices 101 for controlling the elevators are provided respectively according to the number of the plurality of elevators. In addition, a plurality of motors 102, a car 103, a counterweight 104, an encoder 107, a landing call button 109, and the like constituting the elevator are similarly provided. In fig. 9, although not shown, a plurality of the landing doors 110, the car doors 111, the engaging rollers 201, and the engaging elements 202 in fig. 2 are similarly provided. In the plurality of elevators, 1 control device 101 is provided with a receiving unit 113 for receiving the earthquake early warning. The control devices 101 are electrically connected to each other by a communication line 900.

The operation will be described below. The signal of the earthquake early warning received by the receiving unit 113 is transmitted to each control device 101 through the communication line 900. Upon receiving the earthquake early warning signal, each control device 101 determines the state of each car 103 by a car state determination means 301 shown in fig. 3. Then, the 1 st restricted operation control means 302 and the 2 nd restricted operation control means 303 are executed according to the result of the car state determination means 301. The configuration and processing procedure of each control device 101 are the same as those in embodiment 1.

In this embodiment, since the emergency earthquake early warning is provided in the control device 101 of 1 elevator among the plurality of elevators and the signal received here is transmitted to the other control device 101 through the communication line 900, an elevator control system can be constructed in which the installation cost of the receiving unit 113 is reduced.

The receiving unit 113 may be provided in each of the plurality of control devices 101 and may be connected to each other by the communication line 900. With this configuration, even in a situation where another receiving unit 113 has a failure or cannot receive a signal for earthquake early warning, the receiving unit 113 that has normally received can transmit to another control device 101, and the reliability of the elevator control system can be improved.

As described above, although the single-deck elevators are described as an example in embodiments 1 and 2, the invention described in embodiments 1 and 2 can be applied to double-deck elevators.

The elevator according to the present invention is not limited to the above-described embodiments 1 and 2, and various modifications can be made without departing from the scope of the invention described in the claims.

[ description of symbols ]

101 control device

102 electric motor

103 cage

105 load detection device

107 encoder

109 hall call button

110 boarding door

111 car door

112 earthquake sensor

113 receiving unit

114 door motor

200 door clamping device

201 engaging roller

202 snap-in element

302 st managed operation control unit

303 nd controlled operation control unit

900 communication line

Claims (6)

1. A control device for an elevator, comprising: the receiving unit is used for receiving the emergency earthquake fast report issued after the earthquake occurs; a control device for controlling the operation of the elevator; a motor driven and controlled by the control device; a car that is raised and lowered by the motor; a car door provided in the car and opened and closed by a door motor; a boarding door provided at a boarding location of each floor of a building; a boarding gate engagement unit provided at the boarding gate; a car engaging means which engages with the landing door engaging means and opens and closes the landing door in accordance with an opening and closing operation of the car door,

the control device is further provided with a door-locking-avoiding operation control unit, when the receiving unit receives the earthquake early warning, the door-locking-avoiding operation control unit enables the car to move to the position where the door locking unit is engaged with the car locking unit, so that the car stops at the position above the ground of the taking place.

2. The control device for an elevator according to claim 1, comprising: a car state determination unit that determines a state of the car when the reception unit receives the earthquake early warning; and a 1 st control operation control means for moving the car to the nearest floor, wherein the door-lock avoidance operation control means is a 2 nd control operation control means,

the car state decision unit judges when having the passenger in the car, through 1 st control operation control unit makes the car moves to nearest floor, car state decision unit judges when not having the passenger in the car, through 2 nd control operation control unit makes the car moves extremely take advantage of a gate engaging element with the position that car engaging element does not block.

3. A control method of an elevator, the elevator is provided with a control device which receives an emergency earthquake early warning issued after an earthquake occurs and controls the elevator,

the elevator control method includes a step of moving the car to a position where the landing door and the car are not engaged when the earthquake early warning is received, and stopping the car at a position above the ground of the landing place.

4. The method of controlling an elevator according to claim 3, comprising a step of receiving the earthquake early warning and determining a state of a car, and a step of moving the car to a nearest floor,

when it is determined that there is a passenger in the car, a step of moving the car to the nearest floor is performed, and when it is determined that there is no passenger in the car, a step of moving the car to a position where a boarding door and the car do not engage with each other is performed.

5. The method of controlling an elevator according to claim 3 or 4, wherein the step of moving the car to a position where the landing door and the car are not engaged stops the car at a position above a floor of a landing.

6. A control system for elevator, which has multiple elevators, is characterized in that

The plurality of elevators respectively have: a control device for controlling the operation of the elevator; a motor driven and controlled by the control device; a car that is raised and lowered by the motor; a car door provided in the car and opened and closed by a door motor; a boarding door provided at a boarding location of each floor of a building; a boarding gate engagement unit provided at the boarding gate; and a car engaging unit which engages with the door engaging unit, wherein the door is opened and closed according to an opening and closing operation of the car door, the 1 control devices of the plurality of elevators are provided with a receiving unit which receives an earthquake early warning issued after an earthquake occurs, the control devices of the plurality of elevators are connected by a communication line, each control device further comprises a door-avoiding engaging operation control unit, and when the receiving unit receives the earthquake early warning, the door-avoiding engaging operation control unit causes the car to move to a position where the door engaging unit and the car engaging unit are not engaged, so that the car stops at a position above the ground of a boarding place.

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