JP2003312957A - Control device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To land a cage to the evacuation floor as soon as possible even when an abnormality occurs in an elevator and an emergency stop is carried out for the cage outside of the door zone. <P>SOLUTION: When an abnormality occurs in the elevator, the emergency stop is carried out for the cage and it is judged whether the cage is outside a door zone. When it is judged that the cage is outside the door zone and is operated at a rate of 25 m/m, it is judged whether the cage can be landed at the evacuation floor within 15 sec. When it can be landed at the evacuation floor within 15 sec, the cage is operated at a rate of 25 m/m and it is made to land at the evacuation floor. Even when the cage can not be landed at the evacuation floor within 15 sec, the cage is operated at a rate of 90 m/m unless it is a serious breakdown, and the cage is made to be landed as soon as possible. <P>COPYRIGHT: (C)2004,JPO

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 for controlling the operation of an elevator, and more particularly to an elevator control device for moving a car to an evacuation floor in a short time when an abnormality occurs in the elevator.

[0002]

2. Description of the Related Art Elevators are very useful as vertical transportation means for buildings. However, in the unlikely event of an elevator abnormality, passengers may be very anxious because of a sudden stop shock and a tight feeling in the cab. Therefore, in general, in the unlikely event that an elevator malfunctions, rescue operation is performed at a speed lower than the rated speed up to the floor where the door of the elevator can be opened.

As described above, the emergency rescue (relevel) operation is to immediately stop immediately when an elevator abnormality occurs, and then, at low speed operation, land on the evacuation floor in the previous traveling direction. FIG. 7 shows a general rescue pattern at the time of abnormality.

As shown in the figure, when an abnormality is detected (111b) from the state where the vehicle is operating at the rated speed (111a), the car is brought to an emergency stop. At this time, the type of abnormality and the safety of the operation thereafter are confirmed, and it is determined whether the rescue operation to the nearest floor is possible. When it is determined that it is possible, the rescue operation is performed at a speed lower than the rated speed up to the evacuation floor (111d) as shown in (111c).

Also, the elevator is always in the place where it is (floor)
Responding to the call from outside, the response control is always performed with the best efficiency. As a means for recognizing the position, a system for recognizing the current position by counting the number of predetermined single pulse lengths is used. If the pulse count abnormality occurs for some reason, the current position cannot be recognized, the abnormality is determined, and the occurrence of the abnormality is notified. When an abnormality occurs, it is necessary to make a correction (pulse count correction) at the count zero point such as the top floor or the bottom floor set as the correction point and re-recognize the count number.

FIG. 8 shows a rescue pattern when a car position detection abnormality (pulse count abnormality) occurs for some reason.

Operating at rated speed (111a)
From this, when the abnormality detection (pulse error) (111b) is received, the vehicle is landed on the evacuation floor (111c) at a speed lower than the rated speed (passenger rescue). After that, in order to perform the correction operation, a moving operation (112a) is performed at a speed lower than the rated speed to the terminal floor, and pulse correction is performed at the terminal floor (112b).

[0008] In addition, a malfunction announcement is given to passengers in the event of an abnormality, and a message saying "please wait for a while" or "Please get off when the door opens" is broadcast, and how long it takes to be rescued I often depended on the encouragement of the caretaker only through the intercom.

[0009]

However, in the case of a high-rise building, it is conceivable that the express zone or the height of each floor is long. For example, when the rescue speed is 25 [m / m] and the express zone is 100 [m]. There was a problem that it took 4 minutes to rescue.

When a position detection abnormality (pulse error) occurs, since the "position detecting device" for correcting the car position pulse is only on the terminal floor, the car is moved (corrected) to the terminal floor for pulse correction. ) There was a problem that it took time to drive.

Further, in the conventional elevator control device, there is a problem that the passenger cannot be informed of the rescue time, and the passenger feels the rescue time longer than the actual rescue time, thereby increasing anxiety.

In view of the above circumstances, the present invention provides rescue when an elevator has an abnormality and the car is rescued at a speed lower than the rated speed and it takes too long to move the car to the evacuation floor. The main object of the present invention is to provide an elevator control device capable of shortening the rescue time by changing (accelerating) the speed.

[0013]

In order to achieve the above object, the present invention provides, in claim 1, an elevator control device for performing rescue operation to an evacuation floor at a speed lower than a rated speed when an elevator abnormality occurs. When an abnormality occurs in the elevator, the rescue operation time calculation unit calculates the rescue operation time required to move the car to the evacuation floor, and the rescue operation time switching unit obtains the rescue operation time calculation unit. The rescue operation time is compared with a preset rescue operation time, and the rescue operation speed is switched according to the comparison result. Due to this, if an abnormality occurs in the elevator and the car is rescued at a speed lower than the rated speed, if it takes too long to move the car to the evacuation floor, the rescue speed is changed (accelerated), The rescue time can be shortened.

According to a second aspect of the present invention, there is provided an elevator control device for performing a rescue operation to an evacuation floor at a speed lower than a rated speed when an elevator abnormality occurs, and when the car is in the express zone, The position of the car is detected, and the pulse correction unit performs pulse correction based on the detection result. As a result, even if a car position pulse abnormality occurs while the car is moving in the express zone, pulse correction is performed without moving the car to the terminal floor, and the pulse when the car position pulse abnormality occurs The time required to complete the correction can be greatly shortened.

According to a third aspect of the present invention, there is provided an elevator control device for performing a rescue operation to an evacuation floor at a speed lower than a rated speed when an elevator abnormality occurs, and when an abnormality occurs in the elevator, an abnormality type determination unit causes an abnormality type to occur. And the rescue speed determination unit determines the rescue speed based on the determination result of the abnormality type determination unit. As a result, when an abnormality occurs in the elevator, the rescue operation speed is switched according to the importance of the failure, and the rescue speed is changed (accelerated) while preventing the occurrence of a secondary disaster.
The rescue time can be shortened.

According to a fourth aspect of the present invention, in the elevator control according to any one of the first, second, and third aspects, a rescue time calculation unit for calculating a rescue operation time is provided, and the rescue time obtained by the rescue time calculation unit is set. Based on this, by notifying passengers in the car of the rescue time, it is possible to give a sense of security to passengers in the car by announcing the time required from detecting the car position to landing on the evacuation floor. .

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS << Description of First Embodiment >> FIG.
FIG. 1 is a block diagram showing a first embodiment of an elevator control device according to the present invention.

The elevator controller 1a shown in this figure is
The car is moved up and down by driving each motor based on each detection signal output from each sensor provided in each part of the elevator such as a building, etc., a pulse signal, a driving instruction signal output from the operation panel, etc. , A control panel 2a for opening and closing the door, and the like. Each detection signal, pulse signal, output from each sensor provided in each part of the elevator,
Based on the driving instruction signal output from the operation panel,
Drive each motor to raise and lower the car, open and close the door, etc.

Next, the rescue operation of the elevator controller 1a will be described with reference to the flowchart shown in FIG.

If any abnormality occurs in the elevator while driving each motor to raise or lower the car, the control panel 2a detects the abnormality based on the output from each sensor, and the car is It is immediately stopped (step ST1), and it is determined whether or not the car is stopped in the door zone where the door can be opened (step ST2).

If the position where the car is stopped is in the door zone, the control panel 2a immediately starts the releveling operation (rescue operation, landing on the evacuation floor) (step ST9) and the time required for rescue. Is calculated, and the time required for rescue (rescue time) is notified to the passenger (step ST11).

If the position where the car is stopped is outside the door zone (step ST2), the control panel 2a
When the car is driven at a low speed in the traveling direction up to the previous direction or in the opposite direction, for example, at a speed of 25 [m / m], the rescue operation time required for the car to reach the evacuation floor is calculated, and this calculation is also performed. Based on the result, it is determined whether or not the car can reach the evacuation floor within a preset rescue operation time, for example, 15 seconds (steps ST3 and ST5).

When it is determined that the car can reach the evacuation floor within 15 seconds (step ST3,
ST5), each motor is re-driven by the control panel 2a, the operation of the car is restarted, and at a speed of 25 [m / m],
While driving in the traveling direction up to the previous time or in the opposite direction (steps ST4, ST6), after the time required for rescue is calculated based on the car position, the car driving speed, and the position of the evacuation floor, Based on this calculation result, for example,
The announcement "I will arrive at the evacuation floor in 20 seconds" is broadcast, and passengers are informed of the time required for rescue (rescue time) (step ST11).

Further, in the above-mentioned operation, when it is judged that the car cannot reach the evacuation floor within 15 seconds (step ST3), the control panel 2a analyzes the detection signal from each sensor, It is judged whether or not the failure content is a serious failure having a possibility of becoming a secondary disaster such as continuous failure (step ST7).

When it is determined that the failure is a serious one (step ST7), each motor is slowly re-driven by the control panel 2a to reach the nearest evacuation floor at a speed of 25 [m / m]. As the car is operated (step S
T8), the time required for rescue is calculated based on the car position, the operating speed of the car, and the position of the evacuation floor, and passengers are notified of the time required for rescue (rescue time) (step ST11).

When it is determined by the above-mentioned operation that there is no serious failure (step ST7), the control panel 2a
The operation of the car is restarted, and the car is driven to the nearest evacuation floor at a speed capable of landing the car on the nearest evacuation floor, for example, a speed of [90 m / m] (step ST10), and the car The time required for rescue is calculated based on the position, the driving speed of the car, and the position of the evacuation floor, and the passenger is notified of the time required for rescue (rescue time) (step ST11).

As described above, in this embodiment, when an abnormality occurs in the elevator, the car is stopped in an emergency, and it is determined whether the car is out of the door zone. When it is determined that the car is out of the door zone, [25 m / M], it is judged whether the car can be landed on the evacuation floor within 15 seconds, and when the car can be landed on the evacuation floor within 15 seconds, [25 m / Drive the car at the speed of [m], land on the evacuation floor, and [25m /
When it is judged that the car cannot be landed on the evacuation floor within 15 seconds when operated at a speed of [m], it is judged whether it is a serious failure. If the failure is not a serious failure, [90m / Since the car is driven at the speed of [m] and the car is landed on the evacuation floor as soon as possible, even if the car abnormally stops and the car is brought to an emergency stop outside the door zone, as a rule, When the car can be landed on the evacuation floor within 15 seconds, and even if the car cannot be landed on the evacuation floor within 15 seconds, there is no risk of a secondary disaster resulting from the failure. The car can be landed on the evacuation floor as soon as possible, which can significantly reduce the rescue time in the event of an elevator failure.

Further, in this embodiment, when the car is being rescued to the evacuation floor, the time until the car landes on the evacuation floor is calculated, and the time until the car is rescued is announced to the passengers. Therefore, when the elevator is stopped in an emergency, passengers in the car can feel a sense of security.

<< Description of Second Embodiment >> FIG. 3 is a block diagram showing a second embodiment of the elevator control apparatus according to the present invention.

The elevator controller 1b shown in this figure is
As shown in FIG. 4, a hoistway 4 that constitutes elevator equipment.
A car position detector 5 for detecting the position of the car by receiving the reflected light signal while emitting an optical signal toward a reflector plate mounted on the upper part of the car,
A car position detection signal output from the car position detector 5 arranged on the upper part of a building, each detection signal output from each sensor provided in each part of the elevator, a pulse signal, and a driving instruction signal output from the operation panel It is equipped with a control panel 2b for driving each motor to raise and lower the car, open and close doors, etc. based on the car position detection signal output from the car position detector 5. While properly correcting the value, drive each motor based on each detection signal, pulse signal, operation instruction signal output from the operation panel, etc. output from each part of the elevator to raise / lower the car, open / close the door, etc. Let it be done.

Next, the pulse abnormality correction operation of the elevator controller will be described with reference to the flowchart shown in FIG.

When a pulse abnormality occurs during operation of the elevator (step ST20), the control panel 2b detects this and determines whether or not the car is in the express zone (step ST21).

If the car is not in the express zone,
The control panel 2b determines the nearest evacuation floor from the current position of the car, and based on this determination result, the motors are controlled to drive the car to the nearest evacuation floor to unload passengers ( Step ST22).

Next, when the car is operated at a low speed by the control panel 2b to reach the terminal floor and a car detection signal is output from a limit switch provided on the terminal floor, a pulse counter is output. Is reset, pulse correction is performed (step ST23), and normal operation is restarted (step ST27).

If the car is in the express zone when the pulse abnormality occurs (step ST21), the control panel 2b
By controlling each motor, the speed of the car is reduced from the rated speed to a low speed, for example, a speed of [25 m / m] (step ST24), and then the nearest evacuation floor from the current position of the car is determined. At the same time, based on the result of this determination, the car is driven to the nearest evacuation floor, and the passengers are lowered (step ST25).

Next, the car is operated at a low speed by the control panel 2b to reach the range within which the car position detector 5 can detect the car position, and the car position detector 5 outputs a car detection signal. Then, the value of the pulse counter is reset, pulse correction is performed (step ST26),
Normal operation is restarted (step ST27).

As described above, in this embodiment, the car position detector 5 capable of detecting the car position is provided even when the car is in the express zone, and the pulse is generated while the car is moving in the express zone. When an abnormality occurs, the pulse counter is corrected based on the car detection signal output from the car position detector 5. Therefore, when the car is traveling in the express zone, the car position pulse error occurs. However, the pulse correction can be performed without moving the car to the terminal floor, and thereby the time until the pulse correction is completed can be significantly shortened when the car position pulse abnormality occurs.

<< Description of Other Embodiments >> In the above-described first embodiment, when the car is being rescued to the evacuation floor, the time until the car arrives at the evacuation floor is calculated,
Although I announce it to the passengers by voice, I use the calculation result to display "I will arrive at the evacuation floor in 20 seconds" on the display such as the liquid crystal display installed in the car. You may do it.

Also in this case, as in the case of the first embodiment described above, when the elevator is stopped in an emergency, the passengers in the car can feel a sense of security.

In the second embodiment described above, the car position detector 5 is attached to the upper part of the passage of the elevator to detect the position of the car in the express zone and reset the pulse count value. However, as shown in FIG. 6, a photoelectric car position detector 6 that detects the passage of a car by transmitting and receiving an optical signal to and from a predetermined part in the express zone is attached, and a pulse abnormality occurs in the express zone. Then, after the car is landed on the evacuation floor, it may be moved into the express zone, and when the car is detected by the car position detector 6, the pulse count value may be reset.

Even in this case, similarly to the second embodiment described above, when the car is in the express zone, even if a car position pulse abnormality occurs, the car is not moved to the terminal floor and the pulse is generated. The correction can be performed, and by this, the time to complete the pulse correction when the car position pulse abnormality occurs can be significantly shortened.

[0042]

As described above, in the elevator control device according to the first aspect of the present invention, the rescue speed of the elevator for rescue operation can be changed (accelerated), and the rescue time corresponding to a high-rise building can be obtained. It can be effective for the short result of.

In the elevator control device according to the second aspect, when a pulse error occurs in the express zone (especially in the case of a high-rise building), a correction operation of moving to the top floor by low speed operation [25 m / m in this example] is performed. Without using the absolute position detection device for exclusive use in the express zone, the pulse correction operation can be performed and the return time can be shortened.

In the elevator control device according to the third aspect, when an abnormality occurs in the elevator, the rescue speed can be switched according to the degree of importance of the failure, whereby the occurrence of the secondary disaster can be prevented.

In the elevator control device according to the fourth aspect, when the elevator is stopped in an emergency, the time until the arrival at the evacuation floor is announced, so that the passengers who have boarded can feel less fear.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing an operation example of the elevator control device shown in FIG.

FIG. 3 is a block diagram showing a second embodiment of an elevator control device according to the present invention.

4 is a configuration diagram showing an example of mounting positions of a control panel and a car position detector shown in FIG.

5 is a flowchart showing an operation example of the elevator control device shown in FIG.

FIG. 6 is a configuration diagram showing still another embodiment of the elevator control device according to the present invention.

FIG. 7 is a schematic diagram showing an example of an elevator abnormality treatment operation of a conventionally known elevator control device.

FIG. 8 is a schematic diagram showing an example of pulse abnormality treatment operation of a conventionally known elevator control device.

[Explanation of symbols]

1a, 1b: Elevator control device 2a: Control panel (rescue operation time calculation unit, rescue operation time switching unit, abnormality type determination unit, rescue speed determination unit, rescue time calculation unit) 2b: control panel (pulse correction unit) 4: Hoistways 5, 6: car position detector

Claims (4)

[Claims] 1. An elevator control device for performing a rescue operation to an evacuation floor at a speed lower than a rated speed when an elevator abnormality occurs, which is necessary for moving a car to the evacuation floor when an elevator abnormality occurs. The rescue operation time calculation unit for calculating the operation time is compared with the rescue operation time obtained by the rescue operation time operation unit and the preset rescue operation time, and the rescue operation speed is calculated according to the comparison result. An elevator control device comprising: a rescue operation time switching unit for switching between. 2. An elevator control device for performing a rescue operation to an evacuation floor at a speed lower than a rated speed when an elevator abnormality occurs, and a car position detection unit for detecting the position of the car when the car is in an express zone. And a pulse correction unit that performs pulse correction based on the detection result of the car position detection unit when the car is in the express zone. 3. An elevator control device for performing a rescue operation to an evacuation floor at a speed lower than a rated speed when an elevator abnormality occurs, and an abnormality type determination unit for determining the type of abnormality when an elevator abnormality occurs, An elevator control apparatus comprising: a rescue speed determination unit that determines a rescue speed based on the determination result of the abnormality type determination unit. 4. The elevator control according to claim 1, further comprising a rescue time calculation unit that calculates a rescue operation time, and based on the rescue time obtained by the rescue time calculation unit, An elevator control device characterized by notifying passengers in a car of the rescue time.