JPS62222989A - Automatic rescue driving device for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides an automatic rescue operation device for an elevator that automatically runs an elevator car that has stopped abnormally halfway between each floor at low speed to the nearest floor. Pause.

[Prior art] As a conventional automatic rescue operation device for elevators of this type,
For example, there is one described in Japanese Patent Publication No. 53-47971.

FIG. 12 shows the configuration of the automatic rescue operation device for elevators described in the above-mentioned publication.

In the figure, (1) is the elevator car, (2) is the main rope connected to this car, and (3) is the counterweight connected to the main rope (2) on the opposite side of the car (1). , (4) is a sheave, (5) is a drive motor, (6) is a speed control device, (7a
), (7b), (7c), (7d) are cams installed in the hoistway, (8) are these cams (7a), (7b),
A car (1) that engages with (7c) and (7d) within a predetermined distance above and below the floor level and outputs an output to the speed control device (6).
This is a position detector installed in the

Next, the operation of the above configuration will be explained.

If an abnormality does not occur in the elevator while the car (1) is running in an overcrowded state, a safety circuit (not shown) is activated, a sudden stop command is issued, and the car (1) is stopped. At this time, if the position detector (8) does not output an output, the rescue operation mode will be activated.
The speed control device (6) starts the car (1) toward the nearest floor and activates the position detector (8) and the cam (7a) or 7.
When either of d) engages, sudden braking is applied immediately;
Car (1) stops at the nearest floor.

[Problems to be Solved by the Invention] Since the conventional automatic rescue operation device for elevators is configured as described above, after entering the area where the door can be opened, the elevator relies on the braking force of the braking device to stop. The stopping position of the car differs depending on the car load and traveling direction. In other words, the accuracy of installing the floor at the floor level is not constant, and a difference in level occurs between the car floor and the landing floor, making it difficult to safely rescue passengers in the car to the nearest floor. There was a problem.

This invention was made in order to solve the above-mentioned problems, and there is no difference in level between the car floor and the landing floor, making it possible to carry out car rescue operations with high accuracy, and to avoid problems in the unlikely event that the rescue operation fails. To provide an automatic rescue operation device for an elevator, which can reliably move a car to an area where the door can be opened in a second rescue operation even if the car is opened.

[Means for Solving the Problems] The automatic rescue operation device for elevators according to the present invention includes a first speed command pattern output means for starting the elevator car according to a low speed constant value pattern, and the first speed command pattern output means. and second speed command pattern output means for outputting a reference command pattern that decreases in accordance with the remaining distance to the nearest floor when the car enters the door-openable area.

[Function] In the automatic rescue operation device for an elevator according to the present invention, the first speed command pattern output means starts the elevator car in a low speed constant value pattern, and when the car enters the door opening possible region, the second speed The command pattern output means outputs a reference command pattern that decreases according to the remaining distance to the nearest floor to accurately stop the vehicle at the floor level.

[Example] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an automatic elevator rescue operation device according to the present invention.

In the figure, (M) is a first sudden stop means that suddenly stops the elevator car when an abnormality in the elevator is detected, and (N
) is a door-openable area detection means for detecting a door-openable area within a predetermined distance above and below each floor level, (0) is a floor level detection means for detecting a floor level, and (P) is the first sudden stop. First speed command pattern output means for outputting a reference command pattern of a constant low speed value for causing the car to travel at low speed to the nearest floor when the stopped position of the car is outside the door opening possible area, by the means (M); , (Q) uses the first speed command pattern output means (P) to output a reference command pattern that decreases in accordance with the remaining distance to the nearest floor when the car enters the door opening area. The second speed command pattern output means (R) is the first speed command pattern output means (
P) and second speed command pattern output means (Q), the first elevator service disabling means disables subsequent elevator service when the position where the car stops is at least within the door opening possible region.

In addition, (S) is performed by the first speed command pattern output means (P) and the second speed command pattern output means (Q) described in 1. 1. Operate the speed command pattern output means (P),
The second sudden stop means immediately stops the car when it is detected that the car has entered the door-openable area.

(T) is a second elevator service disable means that disables subsequent elevator service after the car is suddenly stopped by the second sudden stop means (S).

Next, FIG. 2 shows the structure of the automatic rescue operation device for elevators of this invention, which is a further embodiment of the above structure.

In the figure, (9) is a pulse encoder directly connected to the drive motor (5), which outputs a distance pulse proportional to the vertical movement distance of the car (1).

(10a), (Job), (10c), (
10d) is a hoistway cam for indicating the floor level, and (11) is a position detector provided on the second part of the car (1).

Next, FIG. 3 shows a detailed internal configuration of the speed control device (6) shown in FIG. 2 above.

In the figure, the speed control device (6) is composed of a microcomputer, and includes a CPU (61) and a readable and writable memory (hereinafter abbreviated as RAM) (6).
2), a readable memory (hereinafter abbreviated as ROM) (63), an input port (64), and an output port (6
5), a clock generator (66) that defines the calculation cycle of the CPU (61), and a bus (67).

3 to 9 are flowcharts showing details of the operation of the program stored in the ROM (63).

Therefore, the CPU (61) sequentially reads out the contents of the ROM (63) using the clock generator (66) and executes the operations described in FIGS. 4 to 9.
Each operation will be explained in detail below.

First, in the flowchart of FIG. 4, when the power is turned on, step (41) is executed, and after the initial setting step (42), the interrupt wait step (4) is executed.
3) waits for an interrupt from the clock generator (66).

Flowchart 1 in FIG. 5 is a clock generator (66)
This process is executed when there is an interrupt from the computer, and in step (51) it is detected whether a safety circuit (not shown) has operated. If the safety circuit is not operating, the process proceeds to step (52) for normal operation;
If the safety circuit is operating, the sudden stop processing step (5
3) and rescue operation processing step (54)
Execute.

Next, the flowchart of FIG. 6 shows the details of the rescue operation processing step (54), including the start processing step (61) and the constant speed running processing step (62).
and a deceleration processing step (63).

FIG. 7 is a flowchart showing the details of the start-up processing step (61), in which it is checked in step (701) whether or not the position detector (8) is operating. If it is operating, a process for opening the door is executed in step (702), and then a process for disabling restarting is executed in step (703).

On the other hand, if the position detector (8) is not operating, the step (
704), and if the reference command pattern (vp) becomes equal to the low speed value (VLA) in step (705), the process is shifted to constant speed mode in step (706), and the startup process (61) is executed. finish.

Next, FIG. 8 shows details of the constant speed running processing step (62).

That is, the operating state of the position detector (8) is checked in step (81), and if the position detector (8) is not operating, the low speed value (VLA) is set as the reference command pattern ■ in step (82). On the other hand, the position detector (8
) operates, in step (83) RAM (6
A predetermined distance R92 from the floor level indicating the area where the door can be opened is set in the remaining distance register RF) T stored in 2), and in the next step (84) the process moves to deceleration mode processing.

FIG. 9 is a flowchart showing details of the deceleration mode processing.

In the figure, first, in step (91), the output pulse ΔP of the pulse encoder (9) is input manually, and the remaining distance register R
The value subtracted from DT is newly set as RDT and stored in RAM (6
2) at the specified address.

In step (92), the remaining distance pattern value corresponding to the RDT marked with "-" is read out from the table stored in the RAM (63) and output as the reference command pattern vP.

In step (93), the operating state of the position detector (11) provided at the top of the car (1) is checked, and if this position detector (11) is not operating, the deceleration mode processing is continued; If the position detector (11) is operating, a stop process is executed in step (94).

The standard command pattern for automatic rescue operation calculated according to each of the flowcharts in 1 is as shown in FIG.

That is, FIG. 10 is a command pattern diagram in which time is plotted on the horizontal axis and reference command pattern (VP) is plotted on the vertical axis.
The period from step) to t2) shows the operation of the position detector (8), and the period from time (t2) to t3) shows the operation of the position detector (11).

As shown in the figure, the distance-based pattern within the door-openable area allows the car (1) to accurately stop at the floor level.

Next, FIG. 11 is a flowchart showing the operation of an automatic rescue operation device for elevators according to another embodiment of the present invention.

In this embodiment, in the unlikely event that the movement of car (1) fails to decelerate completely and deviates from the door-opening area according to the distance-based pattern within the door-opening area, which follows the reference command pattern, the car (1) is activated again. The car (1) is configured to ensure that the car (1) stops at least within the area where the door can be opened in such a case.

That is, in the deceleration process of step (63), in step (111), the flag LARN is checked, and when this is "0", step (112) similar to step (91) to 94) shown in FIG. 9 is executed. 116)
is executed and the position detector (11) operates, the flag L A RN is set to "1" in step (115).

Thereafter, when the car (1) stops outside the region where the door can be opened, the car (1) starts running again by the process shown in FIGS. 7 and 8. Then, when the position detector (8) that detects the door-openable area operates again, the process shown in FIG. 11 is executed, but in step (111), the flag T
Since RN is now set to "1", the stop processing in step (116) is immediately executed, the brakes are immediately applied, and it is guaranteed that the vehicle will stop at least within the door open area. .

[Effects of the Invention] As described above, according to the present invention, the standard command pattern for automatic rescue operation is configured from a distance-based pattern from within the door-openable area, so the landing accuracy of the car is improved. , the standard command pattern allows the passenger in the car to be safely rescued to the nearest floor, and if the above distance-based pattern fails to stop within the area where the door can be opened, the standard command pattern is to perform rescue operation again. When the car enters the area, it is immediately zeroed and sudden braking is applied, so that excellent effects such as a more reliable automatic rescue operation device for elevators can be obtained.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an automatic rescue operation device for elevators showing an embodiment of the present invention, FIG. 2 is a specific configuration diagram of the automatic rescue operation device for elevators, and FIG.
Figures 4 to 9 are internal configuration diagrams of the speed control device in the automatic rescue operation system for elevators, and Figure 10 is a flowchart for explaining the operation of the automatic rescue operation system for elevators, respectively. FIG. 11 is a flowchart for explaining the operation of the automatic rescue operation device for elevators showing another embodiment of the present invention; The figure is a specific configuration diagram of a conventional elevator automatic rescue operation device. (M)...First sudden stop means, (N)...Door opening possible area detection means, (0)...Floor level detection means, (P)...First speed command pattern output means ,(Q)・
...Second speed command pattern output means, (R)...first
Elevator service disabling means, (S)...Second sudden stop means, (T)...Second elevator service disabling means. Seven Satorubo Agent Masuo Oiwa Figure 6 Figure 7 Figure 12 Wawa procedural amendment (voluntary) 1925, month, day 2, title of invention: Automatic rescue quadricycle device for elevators 3, person making the amendment Representative: Shiki Moriya 4, Agent 6, Contents of amendment (1) The statement ``without occurrence'' on page 4, line f5i of the specification is amended to ``when it occurs.'' (2) rRAM (83) J on page 11, line 19 of the specification
The description is corrected to rROM(83) J. that's all

Claims (3)

[Claims] (1) A first sudden stop means that suddenly stops the elevator car when an elevator abnormality is detected; a door-openable area detection means that detects a door-openable area within a predetermined distance above and below each floor level; a floor level detection means for detecting the floor level; and a constant low speed value for causing the car to travel at a low speed to the nearest floor when the position where the car is stopped by the first sudden stop means is outside the area where the door can be opened. a first speed command pattern output means that outputs a reference command pattern of , and a first speed command pattern output means that reduces the remaining distance to the nearest floor when the car enters the door opening area. When the position where the car is stopped by the second speed command pattern output means that outputs the reference command pattern, the first speed command pattern output means and the second speed command pattern output means is at least within the door opening area, the subsequent elevator An automatic rescue operation device for an elevator, comprising a first elevator service disabling means for disabling service. (2) The first speed command pattern output means and the second speed command pattern output means are configured to output the first speed command pattern again when the position where the car is stopped by these output means is outside the region where the door can be opened. Claim 1, characterized in that the car is provided with a second sudden stopping means that immediately stops the car suddenly when the car enters the area where the door can be opened.
Automatic rescue operation device for elevators as described in . (3) The automatic rescue operation device for an elevator according to claim 2, wherein the second sudden stop means includes a second elevator service disabling means for disabling elevator service after the car is stopped. .