JPH04213578A - Elevator control device - Google Patents

Abstract

PURPOSE:To properly maintain elevator operation control for preventing the occurrence of a traffic jam in a building, even when an elevator monitor main controller is out of order. CONSTITUTION:The failure state of an elevator monitor main controller 40 for monitoring and controlling the operation of an elevator is detected by a failure detecting section 40e. In addition, control instruction mode is selected by a failure time control instruction selector 30f, depending upon the failure state of the aforesaid elevator monitor main controller 40, and the selected predetermined control instruction is outputted to an elevator controller 20, thereby controlling the elevator. A control instruction after failure detection is neglected by selecting the control instruction mode after the failure detection. As a result, the elevator control is continued due to a control instruction before the failure detection, or a control instruction before the failure detection is rescinded for undertaking elevator control with a new control instruction.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to an elevator control device, and more particularly, to an elevator control device that can detect a failure in an elevator monitoring panel that monitors and controls elevator operation, and can control operation in the event of a failure. It is related to.

0002

2. Description of the Related Art In recent years, elevator control devices have come to use CRTs for displaying on monitoring panels. As a conventional control device for this type of elevator,
JP-A-62-105881 and JP-A-63-2
The technique disclosed in Japanese Patent No. 52888 can be mentioned.

Furthermore, as disclosed in Japanese Patent Application Laid-Open No. 59-48364, various operation control data are inputted by operating external equipment, for example, driving at work, driving at lunch, driving at clock out, etc. It has also been considered that the operation patterns of elevators are appropriately selected and the operation of elevators is controlled according to these operation patterns. This technology enables complex control that was impossible to achieve with conventional key switch operation alone, and allows control signals from the key switch to be controlled via a serial communication path instead of being transmitted via electric wires. , the number of wires between the elevator machine room and the monitoring panel is reduced.

0004

[Problems to be Solved by the Invention] However, in the conventional elevator control device as described above, when a failure occurs in the elevator monitoring panel, commands such as return standby operation and remote stop operation are incorrectly sent to all elevators. If this were to be output, it would be impossible to register the car call at the elevator landing, and there was a risk that traffic in the entire building would be paralyzed.

SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide an elevator control device that can appropriately maintain elevator operation control so that building traffic is not paralyzed even when a failure occurs in an elevator monitoring panel.

[0006]

[Means for Solving the Problems] The present invention provides an elevator monitoring main control means having a control command signal output means for monitoring the operation of the elevator and controlling the operation of the elevator, and control of the elevator monitoring main control means. A control command means that issues an elevator control command based on a signal from the command signal output means, an elevator operation control means that actually controls the operation of the elevator according to the control command, and a failure that detects a failure state of the elevator monitoring main control means. a detection means, a failure detection signal input means for inputting a failure signal from the failure detection means, a failure control command selection means for selecting a control command form according to a failure state of the elevator monitoring main control means, and a failure control command selection means for selecting a control command form according to a failure state of the elevator monitoring main control means; Selecting a predetermined control command based on the failure signal from the detection signal input means, the control command signal from the control command signal output means, and the selection signal from the failure control command selection means, and outputting the control command to the elevator operation control means. and a failure control command means.

[0007]

[Operation] In the elevator control device of this invention,
Detecting a failure state of an elevator monitoring main control means that monitors and controls the operation of the elevator, and selecting a control command form according to the failure state of the elevator monitoring main control means,
Since the selected predetermined control command is output to the elevator operation control means to control the elevator, after a fault is detected, the control command after the fault is detected is ignored depending on the control command form selected, and the control command before the fault is detected is ignored. The control of the elevator is continued by the control command, or the control command before the failure detection is canceled and the elevator is controlled by a new control command.

[0008]

[Examples] Examples of the present invention will be described below.

FIG. 1 is a block diagram showing an elevator control device according to an embodiment of the present invention.

In the figure, reference numeral 1 indicates an elevator monitoring main control means for monitoring the condition of the elevator, 2 a fault detection means for detecting a fault state of the elevator monitoring main control means 1, and 3 a fault detection means for detecting a fault condition of the elevator monitoring main control means 1. 4 is a control command signal output means for creating a control command for the elevator; 5 is a communication means for transmitting the control command from the control command signal output means 4;
Reference numeral 6 denotes failure control command selection means for selecting a control form in the event of a failure of the elevator monitoring main control means 1. 7 determines control in the event of a failure based on the failure signal from the failure detection signal input means 3, the control command signal from the communication means 5, and the selection signal from the failure control command selection means 6, and sends it to the elevator operation control means 9. This is a control command means at the time of failure. Reference numeral 8 denotes control command means for sending control commands from the communication means 5 to elevator operation control means 9, and reference numeral 9 denotes elevator operation control means for actually controlling the operation of the elevator in accordance with the control commands.

FIG. 2 is a specific example for realizing the basic configuration of the elevator control device shown in FIG. 1, and is an overall configuration diagram showing an elevator control device that is an embodiment of the present invention.

In the figure, 11 is an elevator car, 12
13 is a counterbalance weight that takes into consideration the weight balance with the elevator car 11; and 14 is a drive control circuit that drives the electric motor 12. Reference numeral 20 denotes an elevator control machine that controls the drive control circuit 14 and actually controls the drive of the elevator, and is provided for each elevator. 24 is also the elevator control machine 20
This is an elevator control machine with a similar configuration.

30 is an elevator group management control machine;
Reference numeral 1 denotes an elevator group management control unit built into the elevator group management controller 30 and composed of a microcomputer. 30a is a CPU functioning as a central processing unit, 30b
is a memory, 30c is an I/F for connection with the elevator controller 20, and 30d is an elevator monitoring main controller 40, which will be described later.
This is an I/F for connection with. An elevator operation control command signal from the elevator monitoring main controller 40 is serially communicated via this I/F 30d. 30e is a failure detection signal input section that converts a failure signal of the elevator monitoring main controller 40 from a contact signal to an internal signal, and 30f is a failure control command selection section that selects a control command form at the time of failure. 32
is another elevator group management control machine.

40 is each elevator group management control machine 30.
, 32, which is an elevator monitoring main controller that transmits elevator operation control commands to the elevator group management controller 3.
0, it is equipped with a CPU 40a and a memory 40b, as well as an I/F 40c for connection with each elevator group management control machine 30, 32, and an I/F 40 for connection with a display 60.
It is equipped with d. It also includes a failure detection section 40e that detects a failure of the elevator monitoring main controller 40 and outputs a failure signal.

Reference numeral 60 indicates a display for displaying the operation status of the elevator, 61 indicates a light pen for inputting data for specifying display switching on the display 60 and controlling operation of the elevator, and 62 indicates the above-mentioned information by key operation. This is a keyboard that performs the same operation as the light pen 61.

The elevator control device of this embodiment is constructed as described above, and the elevator control command is stored in the memory 40b as elevator control command information calculated by the CPU 40a of the elevator monitoring main controller 40. . The elevator control command information stored in the memory 40b is transmitted to the elevator group management control section 31 by serial communication via the I/F 40d. Furthermore, data necessary for various operation controls are input by operating the display 60 and light pen 61. This data is received by the I/F 40c of the elevator monitoring main controller 40 and stored in the memory 40b as data for operation control. Then, an operation control command signal is generated by calculation in the CPU 40a based on this data, and is serially transmitted to each elevator group management controller 30, 32 via the I/F 40d. In the elevator group management controller 30, the CPU 30a calculates the received operation control command signal, stores it in the memory 30b as a signal for actually controlling the operation of the elevators, and outputs the I/F 3
0c to the elevator controller 20. Based on this signal, the elevator controller 20 appropriately controls the drive circuit 14, so that the elevator car 11 is operated according to a predetermined control mode according to the operation at the time of work.

Moreover, in the elevator control device having the above configuration, when a failure occurs in the elevator monitoring main controller 40, the failure detection section 40e detects the failure and sends it to the elevator as a contact signal through wiring different from the serial communication. The information is sent to the group management control section 31. In the elevator group management control unit 31, a failure signal sent from the failure detection unit 40e of the elevator monitoring main controller 40 is detected by the failure detection signal input unit 30e, and a control command at the time of failure of the elevator monitoring main controller 40 is issued at the time of failure. It is sent to the elevator controller 20 via the control command means 7. The failure control command means 7 performs appropriate control according to the form selected by the selection signal from the failure control command selection unit 30f of the elevator group management control unit 31 so that building traffic is not paralyzed due to an erroneous command. Select command.

FIG. 3 is a flowchart showing the operation executed by the failure control command means of FIG. 1, and is a program stored in the memory 30b of the elevator group management control section 31 of FIG.

In the figure, in step S1, the status of the elevator monitoring main controller 40 is input, and a failure status signal is input by the failure detection means 2 and failure detection signal input means 3. In step S2, by detecting the failure signal input in step S1, it is determined whether the elevator monitoring main controller 40 is in a failure state. If the elevator monitoring main controller 40 is in a failure state, the process proceeds to step S3, where the selection signal from the failure control command selection section 30f is taken in, and in step S4, the selection signal taken in in step S3 is determined to be "continuation". Determine whether it exists or not. If the selection signal is "continue", the process advances to step S6; if the selection signal is "cancellation", the process advances to step S5. In step S5, the control command that was being executed before the failure was detected is canceled, and the elevator is controlled using a new control command. In step S6, all control commands received after the failure are discarded, and the elevator is controlled using the control commands that had been executed before the failure was detected. Further, if no failure signal is detected in step S2 and the elevator monitoring main controller 40 is not in a failure state, the process proceeds to step S8, and the elevator is controlled by a normal control command.

That is, the schematic structure of this elevator control device is as shown in FIG. FIG. 4 is a block diagram showing a schematic structure of an elevator control device according to an embodiment of the present invention.

In the figure, 70 is a failure detection mechanism that detects a failure in the elevator monitoring main controller 40 and outputs a predetermined failure signal, and 80 selects a control form at the time of failure detection and selects a control command. This is a control command selection mechanism. The failure detection mechanism 70 is comprised of the failure detection means 2 and failure detection signal input means 3 shown in FIG. 1, and the control command selection mechanism 80 is comprised of the failure control command selection means 6 shown in FIG.

As described above, the elevator control device of this embodiment has an elevator supervisory main control means 1 which monitors the operation of the elevator and has a control command signal output means 4 which controls the operation of the elevator. an elevator group management controller 30 which is a control command means 8 that issues elevator control commands based on signals from the control command signal output means 4 of the elevator monitoring main controller 40; an elevator control machine 20 which is an elevator operation control means 9 that controls the elevator; a failure detection unit 40e which is a failure detection means 2 that detects a failure state of the elevator monitoring main controller 40;
A failure detection signal input section 30e serving as a failure detection signal input means 3 that inputs a failure signal from the failure detection section 40e, and a failure control command that selects a control command form according to the failure state of the elevator monitoring main controller 40. A failure control command selection section 30f serving as selection means 6 and the failure detection signal input section 3
A predetermined control command is selected based on the failure signal from 0e, the control command signal from the control command signal output means 4, and the selection signal from the failure control command selection section 30f, and the control command is output to the elevator controller 20. An elevator group management control section 31 is provided as a failure control command means 7.

That is, the elevator control device of this embodiment detects a failure state of the elevator monitoring main controller 40 that monitors and controls the operation of the elevator, selects a control command form according to this failure state, and The selected predetermined control command is output to the elevator controller 20 to control the elevator.

After the failure is detected, depending on the selection of the control command form, the control command after the failure is detected may be ignored, and the control of the elevator may be continued using the control command before the failure was detected (see step S6 in FIG. 3), or the control command after the failure is detected may be ignored. The control command before detection is canceled, and the elevator is controlled by a new control command (see step S5 in FIG. 3). Note that if no failure is detected, the elevator is normally controlled by a normal control command (see step S7 in FIG. 3).

Therefore, as in the conventional case, when a failure occurs in the elevator monitoring main controller 40, even if commands such as return standby operation and remote stop operation are erroneously output to all elevators, after these failures are detected, Since the control commands are ignored and the elevator control is continued based on the control commands issued before the failure was detected, car call registration at the elevator hall will not become impossible and traffic throughout the building will not be paralyzed. Furthermore, even if a failure occurs in the elevator monitoring main controller 40, if there is no effect on elevator control, the control command before the failure was detected is canceled and normal elevator control is performed using a new control command. Therefore, elevator operation control is properly maintained. As a result, highly reliable elevator control can be realized, and serviceability for elevator users is improved.

[0026] Furthermore, if the failure signal from the failure detection section 40e of the elevator monitoring main controller 40 is configured to display the failure on the desk lamp for elevator monitoring, the time until the monitoring panel is restored can be shortened. .

[0027]

As explained above, the elevator control device of the present invention includes: an elevator monitoring main control means, a control command means, an elevator operation control means, a failure detection means, a failure detection signal input means, The system is equipped with a failure control command selection means and a failure control command means, and detects a failure state of the elevator monitoring main control means for monitoring and controlling the operation of the elevator, and selects a control command form according to the failure state. With a simple configuration in which the selected predetermined control command is output to the elevator operation control means to control the elevator, the control command after the failure is detected can be ignored by selecting the control command form after the failure is detected, and the failure can be avoided. Elevator control is continued based on the control commands before failure detection, or control commands before failure detection are canceled and elevator control is performed using new control commands, so elevator operation control is maintained properly and the building Overall traffic will not be paralyzed, and reliability and serviceability will be improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an elevator control device according to an embodiment of the present invention.

FIG. 2 is an overall configuration diagram showing a specific example of an elevator control device according to an embodiment of the present invention.

FIG. 3 is a flowchart showing operations executed by the failure control command means of FIG. 1;

FIG. 4 is a configuration diagram showing a schematic configuration of an elevator control device according to an embodiment of the present invention.

[Explanation of symbols]

1 Elevator monitoring main control means 2 Failure detection means 3 Failure detection signal input means 4 Control command signal output means 5 Communication means 6 Failure control command selection means 7 Failure control command means 8 Control command means 9 Elevator operation control means 20 Elevator control Machine 30 Elevator group management controller 30e Failure detection signal input unit 30f Failure control command selection unit 40 Elevator monitoring main controller 40e Failure detection unit

Claims (1)

[Claims] 1. Elevator monitoring main control means having a control command signal output means for monitoring the operation of the elevator and controlling the operation of the elevator, and a signal from the control command signal output means of the elevator monitoring main control means. a control command means for issuing a control command; an elevator operation control means for actually controlling the operation of the elevator according to the control command; a failure detection means for detecting a failure state of the elevator monitoring main control means; failure detection signal input means for inputting a failure signal;
failure control command selection means for selecting a control command form according to a failure state of the elevator monitoring main control means; a failure signal from the failure detection signal input means; a control command signal from the control command signal output means; 1. A control device for an elevator, comprising: failure control command means for selecting a predetermined control command based on a selection signal from a control command selection means and outputting the control command to elevator operation control means.