JP2022025227A - Control device - Google Patents

Abstract

To move a car when an old control panel is replaced with a new control panel by an operator in a hoistway of a machine room-less elevator.SOLUTION: A control device is temporarily used when an old control panel used for controlling a driving part, which moves up/down a car in a hoistway in a machine room-less elevator, is replaced with a new control panel. A storage unit stores a first car position that is a position of a car suitable for removing the old control panel and a second car position that is a position of a car suitable for mounting a new control panel. A calculation unit calculates a control amount for moving a car to the first car position from a present position, for example, when an operation signal for moving the car to the first car position is input from an operation unit that is connected to the control device to instruct a car moving direction and when a detection signal of the present position of the car is input from a detection unit detecting a car position. A control unit controls the driving unit based on its control amount to move the car.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to a control device.

In recent years, control panels that control a drive unit that raises and lowers a car on a hoistway in an elevator have been made smaller and more multifunctional due to technological development. Further, regarding each component (various processing boards, etc.) in the control panel, the new type is often not compatible with the conventional type in terms of communication interface standard, signal format, and the like. Therefore, when renewing the control panel of an elevator, the entire control panel is often replaced.

Further, in a machine roomless elevator, devices such as a control panel and a hoist are generally installed at the upper part of the hoistway. Therefore, when replacing the old control panel with the new control panel, for example, the operator gets on the car and performs the replacement work.

Japanese Unexamined Patent Publication No. 2013-014395 Japanese Unexamined Patent Publication No. 2011-066437

As described above, when the worker gets on the car and replaces the old control panel with the new control panel at the upper part of the hoistway, the height position where the worker works is not always the same, but there is a difference in height. However, since the drive unit cannot be controlled from the time when the old control panel is removed until the time when the new control panel is installed, the car cannot be moved, which is inconvenient for the operator.

Therefore, the present invention has been made in view of the above circumstances, and the car can be moved when the operator replaces the old control panel with the new control panel in the hoistway of the machine roomless elevator. It is intended to provide a control device.

The control device of the embodiment is a control device temporarily used when replacing the control panel that controls the drive unit that raises and lowers the car on the hoistway from the old control panel to the new control panel in the machine roomless elevator. A storage unit that stores the first car position, which is the position of the car suitable for removing the old control panel, and the second car position, which is the position of the car suitable for attaching the new control board. And, in the case where an operation signal for moving the car to the first car position is input from the operation unit connected to the control device and instructing the direction of moving the car, the position of the car. When the detection signal of the current position of the car is input from the detection unit for detecting the above, the control amount for moving the car from the current position to the first car position is calculated, and the operation unit determines the control amount. When an operation signal for moving the car to the second car position is input and a detection signal for the current position of the car is input from the detection unit, the car is moved from the current position to the second car. It is provided with a calculation unit for calculating a control amount for moving to a car position, and a control unit for controlling the drive unit to move the car based on the control amount calculated by the calculation unit.

FIG. 1 is a block diagram showing a schematic configuration of an elevator control system according to an embodiment. FIG. 2 is a configuration diagram showing an example of car position information of the embodiment. FIG. 3 is a flowchart showing processing in the control device of the embodiment.

Hereinafter, embodiments of the elevator control system of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following embodiments. Further, in this embodiment, a machine roomless elevator is targeted.

FIG. 1 is a block diagram showing a schematic configuration of an elevator control system S according to an embodiment. The elevator control system S includes a car 1, a drive unit 2, a counterweight 3, a rope 4, an old control panel 5, a new control panel 6, a car position detection device 7 (detection unit), and a control device 8. And an operation unit 9. The place shown in FIG. 1 is the upper part of the elevator hoistway.

The car 1 and the counterweight 3 are connected by a rope 4. The rope 4 is hung on the drive unit 2. The drive unit 2 is, for example, a hoist, and by driving the drive unit 2, the car 1 is moved up and down in a hoistway.

Here, it is premised that the control panel that controls the drive unit 2 is replaced with the new control panel 6 from the old control panel 5. In that case, the control device 8 is temporarily used. The control device 8 is configured to operate by connecting the wiring extracted from the old control panel 5.

The control device 8 is, for example, a substrate composed of a semiconductor element, an integrated circuit, or the like, and transmits / receives various signals, stores various information, and executes various arithmetic processes. The control device 8 includes a processing unit 81 and a storage unit 82 as a main configuration. The storage unit 82 is composed of, for example, a RAM (Random Access Memory), a ROM (Read Only Memory), or the like, and stores various types of information.

The processing unit 81 is configured by, for example, a CPU (Central Processing Unit) and executes various arithmetic processes. The processing unit 81 includes an acquisition unit 811, a calculation unit 812, and a control unit 813 as main functional units. Further, the operation unit 9 is connected to the control device 8 and is an operation input device for instructing the direction in which the car 1 is moved.

The acquisition unit 811 acquires various signals from an external device. The acquisition unit 811 acquires, for example, a car position detection signal from the car position detection device 7 or an operation signal from the operation unit 9.

Here, for example, the storage unit 82 has a first car position, which is the position of the car 1 suitable for removing the old control panel 5, and a second car position, which is the position of the car 1 suitable for attaching the new control panel 6. It is assumed that the car position and the car position are memorized. In that case, the calculation unit 812 is in the case where an operation signal for moving the car 1 to the first car position is input from the operation unit 9, and the detection signal of the current position of the car 1 is transmitted from the car position detection device 7. When input, the control amount for moving the car 1 from the current position to the first car position is calculated. Further, the calculation unit 812 inputs an operation signal for moving the car 1 to the second car position from the operation unit 9, and inputs a detection signal of the current position of the car 1 from the car position detection device 7. When this is done, the control amount for moving the car 1 from the current position to the second car position is calculated. Then, the control unit 813 controls the drive unit 2 based on the control amount calculated by the calculation unit 812 to move the car 1.

More specifically, it is as follows. It is assumed that the storage unit 82 stores the car position information shown in FIG. FIG. 2 is a configuration diagram showing an example of car position information of the embodiment. In the car position information, the work target device, the work procedure, and the car position are stored in association with each other. The work target devices are the old control panel 5 and the new control panel 6.

The work procedure is associated with each of the old control panel 5 and the new control panel 6. That is, the plurality of work procedures indicate the work procedure from the removal of the old control panel 5 to the installation of the new control panel 6. Then, a car position (car position x _A1 , x _A2 , ...) Suitable for the work is associated with each work procedure (work procedure A1, A2, ...). The car position indicates the position of the car 1 in the vertical direction.

In addition, in FIG. 1, the range L1 is the range of the height position when the work with respect to the old control panel 5 is performed. Further, the range L2 is a range of height positions when working on the new control panel 6. Further, the range L3 is a range including both the range L1 and the range L2.

When the operation signal for specifying the work procedure is input from the operation unit 9, the calculation unit 812 is based on the detection signal of the current position of the car 1 and the car position information (FIG. 2) input from the car position detection device 7. The control amount for moving the car 1 from the current position to the position of the car 1 corresponding to the work procedure is calculated. Then, the control unit 813 controls the drive unit 2 based on the control amount calculated by the calculation unit 812 to move the car 1.

Further, the control unit 813 only moves the car 1 in the direction opposite to the direction in which the car 1 naturally moves when the drive unit 2 is not controlled (hereinafter, also referred to as "positive direction"). , The drive unit 2 may be controlled to move the car. Then, when the direction in which the car 1 is moved is the positive direction, not only the electric power for driving the drive unit 2 is unnecessary, but also the motor (not shown) in the drive unit 2 functions as a generator. It can generate regenerative power.

Next, processing and the like in the control device 8 of the embodiment will be described with reference to FIG. FIG. 3 is a flowchart showing processing in the control device 8 of the embodiment. First, the worker M (FIG. 2) has a new control panel 6, a control device 8, and an operation unit 9 and rides on the car 1. After that, under the control of the drive unit 2 by the old control panel 5, the car 1 moves to a predetermined position in the vicinity of the old control panel 5 and stops.

Next, the worker M installs the control device 8 on the wall near the hoistway. Next, the worker M pulls out the wiring from the old control panel 5 and inserts the wiring into the control device 8. This enables the control device 8 to control the drive unit 2. That is, the control device 8 needs to be installed within a range where the wiring pulled out from the old control panel 5 can reach.

Then, in step S1, the acquisition unit 811 of the control device 8 determines whether or not the operation unit 9 connected to the control device 8 has operated, that is, whether or not the operation signal has been input from the operation unit 9, and Yes. In the case of, the process proceeds to step S2, and in the case of No, the process returns to step S1. Here, for example, it is assumed that the operator M operates the operation unit 9 to specify the work procedure A1 (FIG. 2) for removing the old control panel 5. Then, it becomes Yes in step S1.

In step S2, the calculation unit 812 identifies the work procedure (work procedure A1), and based on the detection signal of the current position of the car 1 and the car position information (FIG. 2) input from the car position detection device 7, the car 1 Is calculated from the current position to the position of the car 1 corresponding to the work procedure (car position x _A1 ).

Next, in step S3, the control unit 813 moves the car 1 to the car position corresponding to the work procedure. That is, the control unit 813 controls the drive unit 2 based on the control amount calculated in step S2 to move the car 1. After step S3, the process returns to step S1.

In this way, the worker M only specifies the work procedure in the operation unit 9 for each work procedure, and the position (car position x _A1 , ...) Appropriate for the work procedure (work procedure A1, A2, ...) The basket 1 can be moved to x _A2 , ...).

Then, after the work of all the work procedures is completed, the worker M disconnects the wiring from the control device 8 and inserts the wiring into the new control panel 6. This makes it possible to control the drive unit 2 by the new control panel 6.

In the conventional technology, the replacement work of the control panel in the machine roomless elevator is the work of handling heavy objects in a narrow, dark, unstable place of the scaffolding where the equipment is already installed, such as on the basket, and it is a work for the operator. It was a heavy burden. In addition, the height position where the operator works is not always the same, and there is a difference in height, but since the drive unit cannot be controlled from the time the old control panel is removed until the new control panel is installed, the car may be moved. It was not possible and it was inconvenient for the workers.

On the other hand, according to the elevator control system S of the present embodiment, when the old control panel 5 is replaced with the new control panel 6, the control device 8 is temporarily used and based on the operation signal input from the operation unit 9. The drive unit 2 is controlled to move the car 1. As a result, the operator can change the position of the car 1 so that the work can be easily performed when the old control panel 5 is removed or the new control panel 6 is attached.

Specifically, for example, by using the car position information as shown in FIG. 2, the car 1 can be easily moved to the car position corresponding to the work procedure.

Therefore, it is possible to improve workability and shorten the time required for renewal work of the control panel. For example, when a worker with little work experience works, the worker does not immediately know the appropriate position of the car 1 in each work procedure. However, by using the method of the present embodiment, the operator can move the car 1 to an appropriate position only by designating the work procedure in the operation unit 9, so that the work efficiency is improved.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope of the invention described in the claims and the equivalent scope thereof, as are included in the scope and gist of the invention.

For example, the time required to move the car 1 can be calculated from the speed of the car 1, and the car 1 can be smoothly moved by one operation by the operator on the operation unit 9. That is, by preventing the car 1 from repeatedly moving up and down, it is possible to improve the movement efficiency of the car 1 and further improve the safety of the operator in the car 1.

In addition, by simulating the replacement work using VR (Virtual Reality) and AR (Augmented Reality) technologies in advance before the replacement work, the appropriate position of the car 1 in each work procedure can be calculated and the control device can be used. It may be stored in the storage unit 82 of 8.

1 ... Car, 2 ... Drive unit, 3 ... Counterweight, 4 ... Rope, 5 ... Old control panel, 6 ... New control panel, 7 ... Car position detection device, 8 ... Control device, 9 ... Operation unit, 81 ... Processing Unit, 82 ... Storage unit, 811 ... Acquisition unit, 812 ... Calculation unit, 813 ... Control unit

Claims (3)

It is a control device that is temporarily used when replacing the control panel that controls the drive unit that raises and lowers the car on the hoistway in a machine roomless elevator from the old control panel to the new control panel.
A storage unit that stores the first car position, which is the position of the car suitable for removing the old control panel, and the second car position, which is the position of the car suitable for attaching the new control panel. ,
The position of the car is detected when an operation signal for moving the car to the first car position is input from an operation unit connected to the control device and instructing a direction for moving the car. When the detection signal of the current position of the car is input from the detection unit, the control amount for moving the car from the current position to the first car position is calculated.
When an operation signal for moving the car to the second car position is input from the operation unit, and when a detection signal for the current position of the car is input from the detection unit, the car is moved. A calculation unit that calculates the control amount for moving from the current position to the second car position,
A control device including a control unit that controls the drive unit to move the car based on the control amount calculated by the calculation unit. It is a control device that is temporarily used when replacing the control panel that controls the drive unit that raises and lowers the car on the hoistway in a machine roomless elevator from the old control panel to the new control panel.
A storage unit that stores car position information in which a plurality of work procedures from the removal of the old control panel to the installation of the new control panel and the position of the car suitable for each work procedure are associated with each other.
The current state of the car input from the detection unit that detects the position of the car when an operation signal that specifies the work procedure is input from the operation unit that is connected to the control device and indicates the direction in which the car is moved. A calculation unit that calculates a control amount for moving the car from the current position to the position of the car corresponding to the work procedure based on the position detection signal and the car position information.
A control device including a control unit that controls the drive unit to move the car based on the control amount calculated by the calculation unit. The control unit controls the drive unit to move the car only when the direction in which the car is moved is opposite to the direction in which the car naturally moves when the drive unit is not controlled. , The control device according to claim 1.

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