JPH11209020A - Farthquake time control operation device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a chance of a collision at passing-by time of a car and a balance weight by anticipating whether or not there is the possibility of passing by each other when decelerating the car at ordinary deceleration by operation of an earthquake sensor, and controlling operation of the car according to this anticipating result. SOLUTION: The operation part 9B anticipates whether or not there is the possibility of passing-by of a car 1 and a balance weight 2 by calculating a distance between a present position of the car 1 calculated from a pulse signal of a turning angle detector 5 and an initially set intermediate point of the lowest floor and the uppermost floor when judging that the car 1 travels by the operation part 8B when sensing an earthquake by an earthquake sensing signal of a sensor 8 inputted from an input/output interface 9A. As a result, the car 1 is stopped by being urgently decelerated at the decleration by arithmetically operating passing-by avoidable deceleration from a distance between a present position of the car 1 and a passing-by position and a speed of the car 1 when anticipated that they pass by each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for controlling a vehicle when an earthquake occurs during the operation of an elevator.

[0002]

2. Description of the Related Art It is well known that elevators have a car and a counterweight connected via a main rope, and the car and the counterweight are respectively guided by guide rails to move up and down. Therefore, when an earthquake occurs, the car and the counterweight come off the guide rails (hereinafter referred to as rail removal).
Therefore, it is necessary to perform control operation when an earthquake occurs.

FIG. 3 is an operation flowchart showing a conventional elevator operation control device for an elevator. That is, if an earthquake is detected by the earthquake sensor in step S1, it is determined in step S2 whether the car is running. If the car is running, the current position of the car is determined in step S6 in the express zone (there is no hall provided). Zone). If it is not in the express zone, it is stopped at the nearest floor in step S7, and if it is in the express zone, it is stopped in step S5.

[0004]

In the above-mentioned conventional elevator operation control system for an elevator, when an earthquake occurs, the car is stopped at the nearest floor when the car is not located in the express zone. Depending on the structure of the building, if the car and the counterweight pass each other between the floors and the floor, the car and the counterweight pass each other at the rated speed, and There is a problem that the counterweight may collide.

When the vehicle is traveling in an express zone, an emergency stop is performed, so that the impact of this stop not only increases the anxiety of passengers, but also causes an unexpected accident to a user with weak legs. There is a problem that it may give.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to reduce the chance of a collision when the car and the counterweight pass each other during an earthquake and to avoid an emergency stop in an express zone. It is an object of the present invention to provide an elevator control operation device for an elevator in such a manner.

[0007]

According to a first aspect of the present invention, when an earthquake sensor operates while a car is running, an elevator control operation apparatus for an elevator according to a first invention of the present invention determines that the current position of the car and the position where the car and the counterweight pass each other are passed. When the car is decelerated at a normal deceleration, it is predicted whether or not the passing may occur, and the operation of the car is controlled according to the prediction result. .

Further, in the elevator control operation device for an elevator according to the second invention, in the first invention, when it is predicted that the car and the counterweight may pass each other, the deceleration at which the passing does not occur is reduced. The calculation is performed to decelerate and stop the car at this deceleration.

[0009] In the control apparatus for controlling an elevator according to the third aspect of the present invention, when the car and the counterweight are not likely to pass each other in the first aspect of the invention, the car is placed in the express zone at present. The car is detected, and if it is detected that the car is not in the express zone, the car is stopped at the nearest floor, and if it is detected that the car is in the express zone, the car is decelerated at a predetermined deceleration and stopped. It was made.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 and 2 are diagrams showing one embodiment of the first to third inventions of the present invention. FIG. 1 is an operation flowchart, and FIG. 2 is an overall configuration diagram. In FIG. 2, reference numeral 1 denotes an elevator car, 2 denotes a counterweight, and the car 1 and the counterweight 2 are connected via a main rope 3. 4 is a car connected to a motor (not shown).
A hoisting machine for raising and lowering the counterweight 2 and 5, a hoisting machine 4
Is a rotation angle detector such as an encoder that detects a rotation angle of and outputs a pulse signal, and 6 is a floor.

Reference numeral 7 denotes a first sensor installed at the bottom of the hoistway for detecting the initial tremor of the seismic wave, 8 denotes a second sensor installed in the machine room to detect the main vibration of the seismic wave, and 9 denotes a control panel installed in the machine room. And an input / output interface 9A for inputting a pulse signal output from the rotation angle detector 5, an earthquake detection signal output from the first and second sensors 7, 8 and the like, and a microcomputer configured to respond to the earthquake detection signal. A computing unit 9B for controlling the movement of the car 1;

Next, the operation of this embodiment will be described with reference to FIG. In step S1, the arithmetic unit 9B determines whether an earthquake has been detected based on the earthquake detection signal of the second sensor 8 input from the input / output interface 9A (the operation of the first sensor 7 is not directly related to this embodiment). Therefore, the description is omitted). When an earthquake is detected, the process proceeds to step S2, and the calculation unit 8B determines whether the car 1 is running. If the car 1 is not running, the process ends. If the car 1 is running, the process proceeds to step S3.

In step S3, the current position of the car 1 calculated from the pulse signal of the rotation angle detector 5 and the initially set intermediate point between the lowest floor and the highest floor, that is, the car 1 and the counterweight 2 Passing position (passing start position corrected by height of car 1 and counterweight 2 and running direction)
Is calculated to predict whether there is a possibility that the car 1 and the counterweight 2 may pass each other when normal deceleration / stop such as stop at the nearest floor is performed.

If the current car position is predicted to pass the counterweight 2 as a result of this prediction, step S4
Then, based on the distance between the current position of the car 1 and the passing position and the speed of the car 1, a deceleration (a range from the emergency stop deceleration to the normal deceleration) that can avoid the passing is calculated.
Then, in step S5, the car 1 is stopped by performing an emergency deceleration at the calculated deceleration. Therefore, it is possible to reduce the chances of collision between the car 1 and the counterweight 2 even in an unforeseen situation such as rail removal.

If it is predicted in step S3 that there is no possibility that the car 1 will pass the counterweight 2, the process proceeds to step S6.
Then, it is determined whether or not the current car position is in an express zone (a zone where no landing is provided). If the car 1 is not in the express zone, it is stopped at the nearest floor as usual in step S7. If you are in the express zone, step S
In step 8, the motor decelerates and stops at a predetermined deceleration. Therefore, it is possible to avoid an emergency stop with a large stop impact. Here, S3 represents the passing prediction means, and S4, S5, S7, S
Reference numeral 8 denotes operation control means, and S6 denotes express zone detection means.

[0016]

As described above, according to the first aspect of the present invention, when the earthquake sensor operates while the car is running, the possibility of the car and the counterweight passing each other is predicted, and the operation of the car is performed according to the prediction result. Is controlled, it is possible to take measures of deceleration and stop according to the subsequent state.

In the second invention, when it is predicted that the car and the counterweight may pass each other, the car is decelerated and stopped at a deceleration at which the car does not pass. Even in a situation, the chance of collision between the basket and the counterweight can be reduced.

In the third invention, if it is predicted that there is no possibility that the car and the counterweight will pass each other, if the car is not in the express zone, the car is stopped at the nearest floor and put in the express zone. For example, since the vehicle is stopped by decelerating at a predetermined deceleration, an emergency stop with a large stop impact can be avoided, and the mental and physical burden on the user can be reduced.

[Brief description of the drawings]

FIG. 1 is an operation flowchart showing a first embodiment of the present invention.

FIG. 2 is an overall configuration diagram showing the first embodiment of the present invention.

FIG. 3 is an operation flowchart showing a conventional elevator operation control device for an elevator.

[Explanation of symbols]

1 basket, 2 counterweights, 3 main ropes, 8 earthquake second
Sensor, 9 control panel, S3 passing prediction means, S4
S5, S7, S8 Operation control means, S6 Express zone detection means.

Claims (3)

[Claims] An elevator in which a car and a counterweight are connected via a main rope is provided with a seismic sensor for detecting an earthquake. When the seismic sensor operates while the car is running, the current position of the car is determined. Calculates the distance between the above car and the position where the counterweights pass each other, and when the car is decelerated at a normal deceleration, the passing prediction means for predicting the possibility of the passing, and the prediction result of the passing And an operation control means for controlling the operation of the car according to the following. 2. The operation control means calculates a deceleration at which the car does not pass when it is predicted that the car and the counterweight may pass each other, and decelerates and stops the car at the deceleration. The control apparatus for an elevator according to claim 1, wherein the control is performed in the following manner. 3. An express zone detecting means for detecting whether the car is presently in an express zone when it is predicted that there is no possibility that the car and the counterweight will pass each other. When it is detected that the car is not in the zone, the car is stopped at the nearest floor, and when it is detected that the car is in the express zone, the car is controlled to be decelerated at a predetermined deceleration and stopped. The control device for an elevator according to claim 1, wherein the device is operated at the time of an earthquake.