JPH03249082A - Control device for elevator - Google Patents

Abstract

PURPOSE:To reduce the number of circuits by switching the control, which is performed by rocal control means, to the backup operation control with both sigals of the failure signal from a failure detecting means for detecting the failure and the backup operation command signal at the time of failure of a monitor control means. CONSTITUTION:When a failure of an elevator monitor control device 40 is detected by a failure detecting means 40b, the detecting signal is input to a failure signal input device 30f of a system control device 30, a CPU 30a has such control as not to transmit the control operation control signal to elevator control devices 20-23 through a transmission device 30c. On the other hand, when the backup operation command switch 50 is operated, the signal is transmitted to the control device 30 through an amplifying device 70. When this signal is input to a backup operation command input device 30e, the CPU 30a outputs the predetermined backup operation command stored in a storage device 30b to the control device 20 through the transmission device 30c. The number of circuit between a control center and the control device 20 can be therefore reduced.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an elevator control device, and more specifically, when a central control function that monitors multiple lines of local control devices fails, all local control devices are The present invention relates to an elevator control device that issues a backup operation command to an elevator.

[Prior Art] In recent years, elevator operation control devices have rapidly advanced with the adoption of microcomputers. For example, JP-A-5
As disclosed in Publication No. 9-48364, predictions of when elevator users will be dispatched, exited, or when elevator users will be used intensively on a specific date and time can be made using input from an external device and management of a central control function using a CRT display device. I am now able to do it. Particularly, in large-scale hotels, corporate buildings, etc. that are equipped with a large number of elevator systems, it is possible to accurately accommodate the intensive use of elevators as described above. For this reason, the number of switch operations on the control panel that were previously performed at the discretion of the operation manager in the central control room has been reduced, and this has led to the need to connect the central control unit with the local control units installed for each system. There is a tendency for the number of lines connected to the Internet to decrease.

[Problem to be solved by the invention] However, even in the elevator control device as described above, when a disaster such as a disaster or earthquake occurs, each control device installed in the central control room as shown in Fig. Disaster operation panel (LO) switch (LOA) for each bank
~(lod) must be performed by the operation manager's switch operation.

Therefore, between the central control room and each local control device,
It is necessary to install signal lines in the event of the above-mentioned disaster, and the number of lines in large hotels, etc. becomes enormous.

For this reason, the volume occupied by the wiring group and the operation panel (10
), which reduces the efficiency of building use. Additionally, in the unlikely event that a central control unit that monitors multiple local control units malfunctions, there are problems such as the impossibility of simultaneously issuing backup commands to all local control units in response to the failure. was there.

This invention was made to solve the above-mentioned problems, and when the central control unit that monitors the local control units fails, this failure is automatically detected and control is implemented in the event of a disaster. By simultaneously transmitting backup operation commands in the event of an emergency situation to all elevators operating by the local control device, distinguishing from signals, all elevators can perform predetermined emergency evacuation operations, and An object of the present invention is to obtain an elevator control device capable of reducing the space of a switch panel in case of a disaster and the number of lines between a central control room and a local control device.

[Means for Solving the Problems] The elevator control device according to the present invention is capable of correcting the failure when the supervisory control means that instructs a plurality of local control means to switch from normal operation to controlled operation control fails when a disaster occurs. A backup operation control means is provided which switches the control by the local control means to the backup operation control based on the failure detection means that detects the failure and both the failure signal and the backup operation command signal outputted from the failure detection means.

[Function] In this invention, if the monitoring control means fails, 5. This failure is detected and a failure signal is input to the backup operation control means. Further, when a signal from the backup operation command switch operated at the same time as the above failure is input to the backup operation control means, the elevator control by the local control means is switched to the backup operation control.

[Embodiment] FIG. 1 is a block diagram showing the basic configuration of an elevator control device according to an embodiment of the present invention. In the figure, (40) is an elevator monitoring and control device, (2) is a control signal output means that receives commands from the elevator monitoring and control device (40) when a disaster such as an earthquake occurs, and (3) is a control signal output means (2). ), (4) is a control signal input means to which the serial signal from the communication device (3) is input, and (5) is a signal from the control signal input means (4). This is a control operation control means that controls the elevator (6).

Further, (40b) is a failure detection means for detecting a failure of the elevator supervisory control device (40), and when a failure is detected, it sends a signal to the failure signal input device (8), and the output of this failure signal input device (8) is A signal from the failure determining means (9) that receives the signal instructs the controlled operation control means (5) to stop the controlled operation.

(50) is a backup operation command switch that outputs a backup command to the backup operation command input device (30e) when the elevator monitoring and control device (40) breaks down; (12) is the backup operation command input device (30e);
and the output of the failure determining means (9) are input thereto, and is a backup operation control means that outputs a backup operation control command to the elevator (6).

FIG. 2 shows a specific example for realizing the basic configuration shown in FIG. 1, and shows an example in which 5 series of 4 devices per bank are provided. In the figure, (20) is an elevator control device provided locally for each of multiple trains, and a drive control circuit (20a) is built into this, and the drive signal outputted from this controls the electric motor (20b) of the hoisting machine. The car (20c) and the counterweight (20d) are controlled to move up and down. Note that (23) indicates the fourth elevator control device in the same bank.

(30) is a group management control device composed of a microcomputer incorporated therein, (30a) serves as a central processing unit (CPU), (3Qb) is a storage device, (30
c) is a transmission device for connecting with the elevator control device (20), (30d) is a transmission device that serially communicates elevator operation control command signals from the elevator monitoring and control device (40), which will be described later, and (30e) is for backup operation. A backup operation command input device (30f) which inputs a signal from the command switch (50) is a failure signal input device to which this failure signal is input when the elevator monitoring control device (40) is in failure. Note that (34) indicates the fifth group management control device of the same bank.

(40) is an elevator monitoring and control device that transmits elevator operation control command signals to a plurality of elevator group control panels such as the elevator group control panel 30;
0), the CPU (40a) and the storage device (40
e) A CRT comprising a transmission device (40d) and displaying the failure detection device (40d) and the status of the elevator.
A transmission device (4) that controls a display device (60) configured with
0c) and a built-in watchdog timer circuit, CP
It consists of a failure detection device (40b) that operates when a predetermined access is not executed.

(50) is a backup operation command switch that issues a backup operation command, (61) is a light bezel that specifies switching of the display on the above-mentioned display device (60), and (70) amplifies the signal from the backup operation command switch (50). An amplifier device consisting of a relay that turns off when commanded (
Reference numeral 80) is an amplifying device composed of a relay, which detects a failure when turned off and amplifies the signal from the failure detection device (40b), and the relay power supply is shared with the elevator supervisory control device (40).

Next, the operation of this embodiment configured as described above will be explained. A normal control operation procedure in the event of a disaster is calculated by the CPU (40a) of the elevator monitoring and control device (40), and is stored in the storage device (40e) as a control operation command signal. The control operation command signal stored in the storage device (40e) is transmitted by serial communication to the elevator group control device (3o) by the transmission device (40d), and is sent to the elevator group control device (3o) by the transmission device (40d).
30a), and a control operation control signal is sent from the transmission device (30c) to the elevator control device (20).

Here, when a failure of the elevator supervisory control device (40) is detected by the failure detection device (40b), the detection signal is input to the failure signal input device (30f), so that C
P U (30a) transmits the control operation control signal to the transmission device (3
0c) via elevator control devices (2o) to (23)
Do not transmit to.

On the other hand, when the backup operation command switch (5o) is activated, a signal is transmitted to the elevator group control device (30) via the amplifier (7o). For example, when this signal is input to the backup operation command input device (30e), , C.P.
U (30a) outputs a predetermined backup operation command stored in the storage device (Bob) to the elevator control device (2o) via the transmission device (30c). In addition, even if the backup operation command switch (5o) is activated by mistake, the fault signal input device (30f)
If failure information of the elevator monitoring and control device (40) is not input to the CPU (30a), the above-mentioned backup operation command is not output based on the judgment of the CPU (30a).

Figure 3 shows the operation during control operation when a disaster occurs in the above operation, and Figure 4 shows the same elevator monitoring and control equipment (
40) is a flowchart showing operations during backup operation when a failure occurs.

In FIG. 3, first, in step Sll, the elevator monitoring control device (40) and the elevator group management control device (30)
A signal is transmitted between the elevator and the elevator, and then the process proceeds to step SL2, where it is determined whether or not the operation is under controlled operation. If the operation is under controlled operation, it is checked at step S13 whether or not the elevator monitoring and control device (40) is out of order. , if there is no failure, step S1
Proceeding to step 4, an instruction to perform control operation in the event of a disaster such as an earthquake is output to the elevator control device (20) via the transmission device (30c). Also, in step S13,
If it is determined that the elevator monitoring and control device (40) is in trouble, it will operate according to the procedure shown in FIG. 4 below without performing controlled operation.

In FIG. 4, a backup operation command is detected in step S21, the process proceeds to step S22, it is confirmed whether or not the backup operation command has been detected, and once the backup operation command is confirmed, the process proceeds to step S23, where the elevator monitoring and control device Check whether (40) is malfunctioning,
If a failure is confirmed, the process advances to step S24, and the transmission device (
30c) to the elevator control device (20);
For example, a command is given to perform a predetermined backup operation such as stopping at the nearest floor.

The above operation has been explained using the elevator group management and control device (30) as an example, but similar operations are performed simultaneously between the elevator group management and control devices of the other four systems and the elevator monitoring and control device W (40). It will be done.

[Effects of the Invention] As described above, according to the present invention, when a disaster occurs, the entire elevator control of multiple trains and the supervisory control means in the monitoring central control room are malfunctioning so as to switch to control operation. Also, multiple local
Since the elevator control means is configured so that the elevator control of all series is switched to backup operation at the same time only by a backup operation command, the line between the central control room where the supervisory control means is installed and the local elevator control means is This has the effect of reducing the number of disaster control panels and the space occupied by the disaster control panel in the central control room.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the principle configuration of an embodiment of the present invention, FIG. 2 is a block diagram showing a specific configuration that can be realized based on the configuration of FIG. 1, and FIGS. 3 and 4 are A flowchart for explaining the present invention in detail, and FIG. 5 is a front view showing an example of a conventional disaster operation panel. In the figure, (20) is an elevator control device (local control means), (30) is an elevator group management control device,
(40) is an elevator monitoring and control device (supervision and control means)
, (50) is a backup operation command switch. Note that the same symbols in each figure indicate the same or equivalent parts.

Claims (1)

[Scope of Claim] An elevator control device comprising a supervisory control means installed in a central control room and a plurality of local control means that switch from normal operation to controlled operation control in the event of a disaster according to instructions from the supervisory control means. , A failure detection means and a backup operation command switch detect a failure when a failure occurs in the supervisory control means, and control by the plurality of local control means using both the failure signal from the failure detection means and the backup operation command signal. 1. A control device for an elevator, comprising: backup operation control means for switching to backup operation control.