JP2011132014A - Elevator control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator control device capable of reducing the stand-by mode electricity of an elevator by pausing power supply to an elevator control microcomputer. <P>SOLUTION: This elevator control device includes: a landing detecting means provided inside of a hoistway 1 and a car 3 to detect landing of the car 3; and a motor control microcomputer 6 for controlling a motor 4. The motor control microcomputer 6 stops communication between the motor control microcomputer 6 and external connecting equipment each time when a brake 5 brakes, and switches operation of the elevator to a pause mode. When the landing detecting means detects that the car 3 reaches a first threshold value of the floor displaced amount of the landing detecting means in the pause mode, the motor control microcomputer 6 switches mode from the pause mode to a stand-by mode for restoring communication with the external connecting equipment, and thereafter, when the car 3 reaches a second threshold value set at a position, wherein the floor displaced amount is larger than the first threshold value, the motor control microcomputer 6 operates the car 3 again for landing. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an elevator control device that can reduce the standby power of an elevator by shutting off the power supply to the elevator control microcomputer or putting it in a halt state.

  In recent years, awareness of energy issues and environmental issues has increased, and many energy-saving products have been made. Similarly, it is necessary for the elevator to be operated in consideration of energy saving, and many proposals have been made to execute the power saving operation in accordance with the operation state in the elevator control device.

  For example, if there is no elevator call registration by the user for a certain period of time, the power supply to the main circuit part and control circuit part of the elevator will be automatically shut off, and the power consumption for car interior lighting etc. will be reduced. There is an object (for example, Patent Document 1).

JP 2005-212921 A

  In the conventional power-saving operation as described above, the main microcomputer that controls the elevator and the motor control microcomputer that controls the drive motor of the elevator are operating, and even in an elevator rest state that does not require motor operation. Power is always supplied to the motor control microcomputer.

  Accordingly, an object of the present invention is to provide an elevator control device that includes means for controlling power supply to the motor control microcomputer by the main microcomputer of the elevator, reduces power supply during standby of the elevator, and saves energy. .

  In order to achieve the above object, an elevator control device according to the present invention includes a main microcomputer that controls operation of an elevator, a storage device that stores operation information of the elevator, a motor that drives a car, and brakes the rotation of the motor. A brake that controls the motor, a motor control microcomputer that controls the motor, a destination floor registration button that registers a destination floor provided in the car, a landing call registration button that is provided at a landing and calls the car, and the car And a landing detection means provided in the car for detecting the landing of the car, and a motor control microcomputer for controlling the motor is configured so that the motor is driven by the landing action of the car. When the brake is braked, the communication between the motor control microcomputer and the externally connected device is stopped, and the elevator operation is switched to the sleep mode. When the landing detection means detects that the car has reached a preset first threshold floor displacement amount of the landing detection means in the stop mode state, communication with the externally connected device is performed from the pause mode. When the car reaches the second threshold value provided at a position where the floor displacement is smaller than the first threshold value, the motor is driven again to land the car again. It is characterized by having been made to perform.

  ADVANTAGE OF THE INVENTION According to this invention, the electric power supply at the time of the standby of an elevator can be reduced, and energy saving can be achieved.

It is a lineblock diagram of an elevator concerning an embodiment of the present invention. It is a block diagram showing composition of an elevator control device concerning an embodiment of the present invention. It is a flowchart of the operation control which concerns on embodiment of this invention. (A) It is the schematic which shows the landing detection which concerns on embodiment of this invention. (B) It is detail drawing which shows the landing detection means based on embodiment of this invention. It is a flowchart of the operation control using the standby mode changeover switch concerning the embodiment of the present invention.

  Embodiments of the present invention will be described below with reference to FIGS.

  In the hoistway 1, an elevator control device 2 that controls the operation of the elevator, a car 3 for passengers to ride, a motor 4 that raises and lowers the car 3, and a brake 5 that holds the motor 4 so that the motor 4 does not rotate. Is provided. The dotted line in FIG. 1 represents the signal flow.

  The elevator control device 2 includes a motor control microcomputer 6 that controls the motor 4 and a main microcomputer 7 that controls the elevator such as a car 3 and a landing button.

  The motor control microcomputer 6 includes a storage device 8 that stores information necessary for operating the elevator. The motor control microcomputer 6 and the storage device 8 are supplied with electric power from a motor control power supply circuit 13. The solid line in FIG. 2 indicates the signal flow, and the motor control microcomputer 6 and the storage device 8 are supplied with power from the motor control power supply circuit 13 as indicated by the dotted line.

  The hoistway 1 is provided with the landing detection means A shown in detail in FIG. That is, the landing detection means A is installed at one place on each floor, and is attached to the landing detection plate 9 for stopping the car 3 on each floor and the landing detection switch mounting portion 17 provided on the car 3. The landing detection switches 10a, 10b, and 10c for detecting the position of the landing detection plate 9 and the standby mode changeover switches 16a and 16b that are similarly attached to the landing detection switch attachment portion 17 are configured. The landing detection plate 9 and the landing detection switch mounting portion 17 have a predetermined length in the vertical direction, and the landing detection switch 10 and the standby mode changeover switch 16 are connected to the landing detection switch mounting portion 17 as described below. Install.

  When the landing error between the car 3 and the floor is 0 mm, the landing detection switches 10a and 10c provided on the landing detection switch mounting part 17 provided on the car 3 and spaced apart from each other by a predetermined interval are The landing detection plate 9 is provided at a position corresponding to a position of 15 mm from the upper end and the lower end. Also, the landing detection switch 10b is provided at a distance between the landing detection switches 10a and 10c.

  Further, when the landing error between the car 3 and the floor is 0 mm, the standby mode changeover switches 16a and 16b are placed at positions corresponding to the positions 10 mm from the upper end and the lower end of the landing detection plate 9, respectively. The landing detection means A is configured by the landing detection plate 9, the landing detection switch 10, and the standby mode switching switch 16 provided in the attachment portion 17. The mounting position relationship between the standby mode changeover switch 16 and the landing detection switch 10 does not necessarily have to be mounted side by side in the vertical direction (for example, FIG. 4B).

  Here, the landing detection means A includes, for example, a landing detection switch 10 having a light emitting part and a light receiving part, and a landing detection plate 9 having a reflection part, and the light emitted from the landing detection switch 10 is landed. The detection plate 9 is reflected, and the landing detection switch 10 receives the reflected light so that the landing detection switch 10 detects the landing detection plate 9.

  Alternatively, the landing detection plate 9 may block the light so that the landing detection switch 10 is operated to detect the landing detection plate 9.

  The landing detection switch 10 may be provided in the hoistway 1, and the landing detection plate 9 may be provided in the car 3, and light irradiated from a light emitting portion provided on the landing detection plate 9 may be received. The floor detection switch 10 may receive light and various configurations can be employed.

  The car 3 is provided with a destination floor registration button 11 for a user to register a destination floor, and an in-car indicator 14 for displaying the position floor of the car 3, and further, an in-car light (not shown) for illuminating the inside of the car 3. ) In-car air conditioner etc. (not shown) are installed.

  On the other hand, a hall indicator 15 for informing the position / floor of the car 3 and a hall call registration button 12 for the passenger to select a desired ascending / descending direction are installed at the hall.

  The destination floor registration button 11 and the hall call registration button 12 can be realized by using a sensor touch button or the like.

  Here, referring to FIG. 2 and FIG. 3, a normal mode in which the main microcomputer 7 and the motor control microcomputer 6 perform normal elevator operation control, a sleep mode in which the motor control microcomputer 6 does not communicate with external devices, Hereinafter, switching of each operation mode of the elevator in the power saving mode in which the power supply to the motor control microcomputer 6 is cut off after a certain period of time will be described.

  First, switching from the normal mode to the hibernation mode and further from the hibernation mode to the power saving mode will be described.

  The elevator car 3 arrives at the floor, the landing detection switches 10a, 10b, 10c detect the landing detection plate 9 to perform the landing control operation (S1), and the elevator control device indicates that the brake 5 is braked. 2 (S2), the motor control microcomputer 6 stores data necessary for operating the elevator in the storage device 8 (S3), and the motor control microcomputer 6 is in the sleep mode. (S4).

  Here, the sleep mode is a state in which communication with externally connected devices such as the main microcomputer 7 and the storage device 8 is not performed. Further, after switching to the sleep mode, there is no output signal from the destination floor registration button 11 or the hall call registration button 12 (S5), and the landing detection switch 10 detects the landing detection plate 9 ( When the main microcomputer 7 determines that S6) has continued for a certain time (S7), the main microcomputer 7 switches the elevator to the power saving mode (S8).

  When switching to the power saving mode, the main microcomputer 7 shuts off the motor control power circuit 13 (S9) and stops the motor control microcomputer 6 (S10). During the power saving mode, the main microcomputer 7 displays on the in-car indicator 14 and the hall indicator 15 to notify the user that the power saving mode is in effect (S11).

  Therefore, the standby power of the motor control microcomputer 6 can be reduced by cutting off the motor control power supply circuit 13.

  Next, the operation for switching from the sleep mode to the normal mode will be described.

  When the elevator is in the stop mode, if there is a registration to the destination floor registration button 11 or the hall call registration button 12 in the car 3, the elevator switches to the normal mode and the motor control microcomputer 6 and the externally connected device Restart communication with. The destination floor registration button 11 here may include a door opening / closing button.

  Further, an operation for switching from the power saving mode to the normal mode will be described.

  When the main microcomputer 7 detects an output signal from the destination floor registration button 11 or the hall call registration button 12 (S21), the main microcomputer 7 switches the elevator from the power saving mode to the normal mode (S22).

  When the elevator is switched to the normal mode, the main microcomputer 7 returns the power supply to the motor control power circuit 13 (S23). As a result, the motor control microcomputer 6 is switched to the normal mode (S24), and the car 3 can be moved to the floor where the destination floor registration button 11 or the hall call registration button 12 is pressed.

  Next, the floor alignment operation of the elevator will be described with reference to FIG. Below, the pattern when the cage | basket | car 3 will land from a lower floor to an upper floor is shown.

  When the elevator is about to arrive at each floor, when the landing detection switch 10a detects the landing detection plate 9 installed in the hoistway 1, it is determined that the landing start position of the car 3 has been reached. Control action is started. Thereafter, the landing detection plates 9 are sequentially detected by the landing detection switches 10b, 10c, and the motor control microcomputer 6 is in a state where the three landing detection switches 10a, 10b, 10c detect the landing detection plates 9. 3 recognizes that it has arrived at a predetermined position on the floor, closes the brake 5, stops the motor 4, and the motor control microcomputer 6 enters a pause mode.

  However, even in the sleep mode, the car 3 may move up and down due to the stretchability of the rope that suspends the car 3, for example, due to the raising and lowering of the user. For example, when a person gets in the car 3, the car 3 is lowered, and thus the landing detection switch 10c may not be able to detect the landing detection plate 9 (NO in S6).

  At this time, the motor control microcomputer 6 sends a current to the motor 4 to return the motor control microcomputer 6 (S31), further releases the brake 5, and controls the car 3 to land on the floor again (S32). ). When the landing detection switch 10c detects the landing detection plate 9, the motor control microcomputer 6 recognizes that the car 3 has arrived at the floor again, closes the brake 5, stops the motor 4, and puts the car 3 on. Let the floor.

  For example, at this time, it is determined that the floor of the car 3 has shifted from the landing detection plate 9 by 10 mm to 15 mm or more, in this embodiment, 15 mm. When the floor detection is detected by the landing detection means A, the main microcomputer 7 sends a current to the motor 4 to release the brake 5 and to land the car 3 again.

  However, when the floor slip is detected during the pause mode, the communication between the motor control microcomputer 6 and the externally connected device is restored, and then the car 3 is landed again to shift to the normal mode to some extent. This will result in wasted time.

  In view of this, a communication return means (not shown) for returning communication between the motor control microcomputer 6 and the externally connected device in advance is provided so that the landing operation can be performed immediately when the car floor is displaced. Here, the floor shift amount at which the standby mode changeover switch 16 does not detect the landing detection plate 9 is set as the first threshold value, and the floor shift amount at which the landing detection switches 10a, 10c do not detect the landing detection plate 9 is set as the second threshold. The threshold is used.

  Next, a specific operation will be described with reference to FIG. FIG. 5 differs from FIG. 3 in that it includes a pattern of step (S51) by the standby mode changeover switch and step of returning the motor control microcomputer (S52) between step (S5) and step (S6). This is the point at which the car floor is landed as soon as possible (S53).

  When the car 3 has not reached the first threshold floor displacement amount or the second threshold floor displacement amount of the landing detection means A, the main microcomputer 7 indicates that the car 3 has normally landed on the floor. to decide. If the destination floor registration button 11 or the hall call registration button 12 is not input after landing (S5), it is determined whether the standby mode changeover switch 16 detects the landing detection plate 9 (S51). If not detected (NO in S51), the main microcomputer 7 restores communication between the externally connected device and the motor control microcomputer 6 (S52).

  Thereafter, when the landing detection switch 10 does not detect the landing detection plate 9 (NO in S6), the car floor landing operation is immediately started (S53). When the standby mode changeover switch detects the landing detection plate 9 (YES in S51), the process is the same as that after step (S7) in FIG.

  That is, by detecting that the car 3 has reached the first threshold value in the landing detection means A, the main microcomputer 7 restores communication between the motor control microcomputer 6 and the externally connected device, and the motor control microcomputer 6 is suspended. Switch from mode to standby mode.

  Further, when the car 3 reaches the second threshold value of the landing detection means A after switching to the standby mode by reaching the first threshold value of the landing detection means A, the rope is immediately roped by the motor 4. It is possible to quickly cope with a floor slip by rolling up the floor and landing again on the floor.

  If the car 3 does not reach the second threshold after switching to the standby mode, the operation mode is switched to the normal mode as it is.

  In FIG. 4, the landing detection switches 10a and 10c and the standby mode changeover switches 16a and 16b are set to 10 mm so that the positions 15 mm from the upper and lower ends of the landing detection plate 9 can be detected. Although installed so that it can be detected, it can also be installed at an arbitrary position by an administrator or the like.

  In the present embodiment described above, the detection of the landing detection plate 9 by the landing detection switch 10 has been described as the detection of the landing detection means A, but the landing detection switch 10 does not detect the landing detection plate 9. This may be detected by the landing detection means A.

DESCRIPTION OF SYMBOLS 1 ... Hoistway 2 ... Elevator control device 3 ... Car 4 ... Motor 5 ... Brake 6 ... Motor control microcomputer 7 ... Main microcomputer 8 ... Storage device 9 ... Landing detection board 10a, 10b, 10c ... Landing detection switch 11 ... Destination Floor registration button 12 ... landing call registration button 13 ... motor control power supply circuit 14 ... car indicator 15 ... landing indicators 16a, 16b ... standby mode changeover switch 17 ... landing detection switch mounting portion

Claims (3)

A main microcomputer that controls the operation of the elevator,
A storage device for storing operation information of the elevator;
A motor that drives the car;
A brake for braking the rotation of the motor;
A motor control microcomputer for controlling the motor;
A destination floor registration button provided in the car for registering a destination floor;
A hall call registration button provided at the hall to call the car,
In the hoistway in which the car is disposed, and landing detection means for detecting the landing of the car provided in the car;
With
The motor control microcomputer for controlling the motor is:
When the motor is braked by the landing operation of the car, the communication between the motor control microcomputer and the externally connected device is stopped, and the operation of the elevator is switched to the sleep mode.
When the landing detection means detects that the car has reached a preset first threshold floor displacement amount of the landing detection means in the pause mode state, communication from the pause mode to the external connection device is performed. Switch to standby mode to restore
Thereafter, when the car reaches a second threshold value provided at a position where the amount of floor slip is larger than the first threshold value, the motor is caused to perform the flooring operation again by the motor. Elevator control device.   After the motor control microcomputer switches from the pause mode to the standby mode, the landing detection means detects that the car has reached the second threshold value and has landed on the floor again by the motor. 2. The elevator control device according to claim 1, wherein the motor control microcomputer is again switched to a pause mode. The main microcomputer is
After the motor control microcomputer switches to the pause mode, the landing detection means does not detect that the car has reached the first threshold value, and output signals from the destination floor registration button and the landing call registration button are 2. The elevator control device according to claim 1, further comprising: a power saving mode switching unit that cuts off power supply to the motor control microcomputer and switches the operation of the elevator to a power saving mode when the motor control microcomputer is not detected for a certain period of time. .

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