JPH0664859A - Elevator controller - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the possibility of rescue of users in a car during a power outage. [Configuration] When a power failure occurs, the contact 1b turns on,
After ₀ seconds, the coil 2 is excited and the contacts 2a ₁ and 2a ₂ are turned on. When the contact 2a ₂ is turned on, the rescue operation command circuit 4
Is sent to the rescue operation control circuit 13. Also,
When the contact 2a ₁ is turned on, the timer 6 starts counting operation. If the car does not easily reach the door zone, the circuit 13 briefly energizes the coil 8 before (or after) the time T ₁ to turn off the contact 9b. As a result, the timer 6 resets the count up to that point and starts the counting operation from the beginning. When the car reaches the door zone after repeating such a count reset several times, the circuit 13 outputs a cutoff command to the second rescue operation cutoff timer circuit 11. As a result, the abort circuit 14 operates, and the rescue operation is aborted after T ₂ seconds.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator control device capable of performing rescue operation by using a battery power source at the time of power failure.

[0002]

2. Description of the Related Art When a power failure occurs in a building during elevator operation, battery-powered rescue operation is performed to transfer the user left in the car to the entrance / exit of the nearest floor. .

However, since the capacity of the battery is limited, the rescue operation is stopped by the operation of the timer circuit after a predetermined time has elapsed.

FIG. 3 is a time chart showing an example of the operation timing of such rescue operation. That is, FIG.
(A) is the case where the car could not reach the vicinity of the entrance door on the nearest floor even though the rescue operation was performed, and in this case, the first car installed in the landing gear at the time of power failure The rescue operation termination timer circuit of
Rescue operation is terminated after ₁ lapse.

On the other hand, as shown in FIG. 3B, time T ₁
If the car reaches the door-open rescue zone (also referred to as the door zone) immediately before the passage, the count of the first rescue operation termination timer circuit is canceled at this arrival time,
The second rescue operation termination timer circuit installed in the main controller starts counting. Then, the rescue operation is terminated after a time T ₂ sufficient for the car to land. In this case, the rescue operation is performed by extending the time T ₁ .

Further, as shown in FIG. 3 (c), the time T ₁
If the car reaches the door zone well before,
The rescue operation will be performed with the time T ₁ shortened.

[0007]

FIG. 3 (a) shows an example in which the car cannot reach the door zone to the end and the rescue operation fails. As shown in this example, the rescue operation fails. In the end, it depends on whether or not the car could reach the door zone before the time T ₁ .

However, if the rescue operation is discontinued after the lapse of time T ₁ , the rescue operation is discontinued despite the fact that the car has reached a point of only a few centimeters to the door zone. However, there is a risk that the rescue may be stopped while having the ability to rescue the passengers in the car.

The present invention has been made in view of the above circumstances, and is an elevator control capable of continuing the rescue operation as much as possible in the event of a power failure and improving the rescue possibility of the user in the car. It is intended to provide a device.

[0010]

As a means for solving the above problems, the present invention provides a rescue operation command circuit for outputting a rescue operation command signal when a power failure occurs, and a rescue operation for an elevator car based on the rescue operation command signal. A rescue operation control circuit for controlling the operation, a first rescue operation termination timer circuit for outputting a termination command for the rescue operation after a predetermined time has elapsed from the start of the rescue operation, and an elevator car during the rescue operation. When the door open rescue enabled zone is reached, the second rescue operation abort timer circuit that outputs a command to abort rescue operation after a predetermined time has elapsed from the arrival, and when a power failure occurs in the building, In the elevator control device, which uses a battery power source to transfer the user left in the elevator car to the entrance / exit of the nearest floor, Is provided with count operation canceling means for canceling the count operation of the operation abort timer circuit, and the rescue operation control circuit cancels the count operation at every predetermined time until the elevator car reaches the door open rescue possible zone. The counting operation cancellation command is output to the means.

[0011]

In the above structure, when a power failure occurs, the rescue operation command circuit outputs the rescue operation command signal, the rescue operation control circuit outputs the rescue operation command signal, and the rescue operation control circuit outputs the rescue operation by the battery power source. Control the operation.

After the rescue operation is started, when the first rescue operation termination zone is reached, the rescue operation is terminated when the set time of the second rescue operation termination timer circuit elapses from the arrival. During this time, the car should have landed at the entrance / exit on the nearest floor, and the user should be getting off the car.

On the other hand, when the car cannot reach the door open rescue possible zone after the start of the rescue operation and before the time set by the first rescue operation abort timer circuit elapses, the rescue operation control circuit outputs a count operation cancellation command. Then, the count operation canceling means cancels the count operation of the first operation cutoff timer circuit.

The first operation-terminating timer circuit is
Since the counting operation is newly started, the rescue operation can be performed again until the set time has elapsed. In this way, the rescue operation can be repeated any number of times until the battery power is turned off, so the rescue possibility of the user in the car can be increased.

[0015]

Embodiments of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a circuit diagram showing a configuration of a main part of an embodiment of the present invention.

In FIG. 1, a rescue operation command circuit 4 including an exciting coil 2 and a timer 3 is connected to the normally closed contact 1b. The contact 1b is turned on and off by a power supply detection coil (not shown), and is turned off during normal operation because the power supply detection coil is excited. In addition, the rescue operation command circuit 4 sets the on-delay time T
After the passage of ₀ , the normally open contacts 2a ₁ and 2a ₂ of the exciting coil ₂
Is turned on. The reason for on-delay in this way is to prevent rescue operation from being performed due to an instantaneous power failure.

The normally open contact 2a1 and the normally closed contact 8b
A first rescue operation termination timer circuit 7 including an excitation coil 5 and a timer 6 is connected to the terminals 1 and 9b. Timer 6
Starts the counting operation and the set time T ₁ elapses,
The termination circuit 14 is activated by the excitation of the excitation coil 5, and the rescue operation is terminated.

Further, the main coil 12 is provided with the exciting coil 8 as the counting operation canceling means, and the second rescue operation termination timer circuit 11 including the exciting coil 9 and the timer 10.
It is connected to the rescue operation control circuit 13 inside.

Next, the operation of the present embodiment configured as described above will be described with reference to the time chart of FIG. When a power failure occurs in the building, the excitation of the power supply detection coil (not shown) is stopped, so that the contact 1b, which has been off until then, is turned on. Then, when the time T ₀ elapses after the contact 1b is turned on, the contacts 2a ₁ and 2a ₂ are turned on by the excitation of the exciting coil 2.

When the contact 2a ₂ is turned on, a rescue operation command signal is sent from the rescue operation command circuit 4 to the rescue operation control circuit 13. As a result, the rescue operation control circuit 13 controls a drive circuit (not shown) to execute the rescue operation. Further, at this time, the contact 2a ₁ is turned on, so that the timer 6 of the first rescue operation termination timer circuit 7 starts the counting operation.

If the elevator car reaches the door zone on the nearest floor soon after the rescue operation control circuit 13 executes the rescue operation, a door zone detection signal is input to the rescue operation control circuit 13. Thereby, the rescue operation control circuit 1
3 outputs a rescue operation termination signal to the second rescue termination timer circuit 11.

When the set time T ₂ of the timer 10 elapses, the exciting coil 9 is excited and the discontinuation circuit 14 operates, so that the rescue operation is discontinued. This time T ₂ is sufficient for the car reaching the door zone to land at the entrance / exit, so that the user in the car should be able to get off at the entrance / exit during this time. Figure 2 (c)
Indicates the timing when the car can land on the entrance / exit of the nearest floor soon after the rescue operation is started.

By exciting the exciting coil 9, the contact 9b is formed.
Is turned off and the counting operation of the timer 6 is released, so that the exciter coil 5 does not operate the cutoff circuit 14 before the elapse of the time T ₂ .

On the other hand, after the rescue operation control circuit 13 starts the rescue operation, the car may not reach the door zone easily. FIG. 2B shows the timing in such a case. When the rescue zone control circuit 13 does not easily input the door zone detection signal, the rescue operation control circuit 13 performs the one-shot immediately before the elapse of the time T ₁ (or after the elapse). The count operation cancellation command of is output to the exciting coil 8. Then, the contact 8b ₁ is once turned off and then turned on again. This resets the count of the timer 6 up to that point, and starts a new count operation from the beginning. In this way, if the door zone detection signal is input after repeating the operation of resetting the count of the timer 6 several times, the rescue operation control circuit 13 sends the rescue operation abort signal to the first operation as in the case described above. It outputs to the rescue operation termination timer circuit 11 of No. 2.

There may be a case where the rescue operation control circuit 13 cannot output the count operation cancel command to the exciting coil 8 when some permanent failure mode occurs in the main controller 12. FIG. 2A shows the timing when the rescue operation fails in this way.

[0026]

As described above, according to the present invention, since the rescue operation can be repeated any number of times until the battery power is turned off, the possibility of rescue of the user in the car during a power failure is improved. be able to.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a main configuration of an embodiment of the present invention.

FIG. 2 is a time chart showing an example of operation timing of FIG.

FIG. 3 is a time chart showing an operation timing example of a conventional example.

[Explanation of symbols]

 4 Rescue Operation Command Circuit 7 First Rescue Operation Abort Timer Circuit 8 Counting Operation Release Means (Excitation Coil) 11 Second Rescue Operation Abort Timer Circuit 13 Rescue Operation Control Circuit 14 Abort Circuit

Claims (1)

[Claims] 1. A rescue operation command circuit that outputs a rescue operation command signal when a power failure occurs, a rescue operation control circuit that controls a rescue operation for an elevator car based on the rescue operation command signal, and from the start of the rescue operation. A first rescue operation discontinuation timer circuit that outputs a discontinuation command for this rescue operation after a predetermined time has elapsed, and when the elevator car reaches the door open rescue possible zone during execution of the rescue operation, a predetermined time from the arrival It is equipped with a second rescue operation termination timer circuit that outputs a termination command for the rescue operation after a lapse of time, and when a power failure occurs in the building, the user who is left in the elevator car can be brought to the nearest location by using the battery power supply. An elevator control device for transferring to an entrance / exit of a floor, a counter for canceling the counting operation of the first operation abort timer circuit. An operation canceling unit is provided, and the rescue operation control circuit outputs a count operation canceling command to the count operation canceling unit every predetermined time until the elevator car reaches the door open rescue possible zone. An elevator control circuit characterized by: