JPH02231381A - Position detecting device for elevator - Google Patents

Abstract

PURPOSE:To smoothly perform rescue work by providing a recording part recording a ratio data of distance per one pulse of a fault elevator position detection pulse to an intra-cage position detection pulse and a correction processing part correcting a position data of a fault elevator by a correction data. CONSTITUTION:A trouble is generated in an adjacent cage, when it is stopped in a position with no gate, an elevator control device 1 receives a rescue operation command 1b inputting a position data 2a of a fault cage to a position data correcting part 10, and this position data, being based on a ratio data in a recording part (memory) 13, is converted into an intra-cage pulse rate input to an elevator control part 8. Next being based on this result data, the elevator control part 8 controls the intra-cage to be placed aside the fault cage. As a result, even when a difference is provided between the two sets of elevators in their position detection pulse rates, rescue operation can be smoothly performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an elevator rescue operation, and particularly to improving the accuracy of detecting the position of a failed elevator car during rescue. (Conventional technology) The conventional technology will be explained. FIG. 5 shows the system configuration of conventional rescue operation. Each elevator of Unit B 2 has a car 15a,
The car position is detected by adding and subtracting signals from pulse generators 3a and 3b that generate pulses as the car 15b travels, and controls the deceleration, stopping, etc. of the car.
At the same time, each elevator sends the car position data detected by itself to the control device of the adjacent elevator (for example, for car A, to car B) (Ia, 2a). switch lb,
2b is a switch that commands rescue operation. FIG. 6 is a block diagram showing the internal configuration of the control device 1 of the car No. A shown in FIG. The pulses of the pulse generator 3 of the A car 1 are input to the car position detection unit 4, and the detected car position data (Ia) is input to the travel control unit 5 in the elevator control unit 8 and the direction selection unit 7 during rescue operation. , and is also output to B unit 2. Car position data 2a of No. B car 2 is input to No. A car and is used in the deceleration point calculation section 6 and direction selection section 7 during rescue operation.
is input into . The direction selection unit 7 outputs a direction signal for heading for rescue, and the deceleration point calculation unit 6 outputs deceleration start position data for pulling alongside the failed car to the travel control unit 5.

The rescue operation command 1b for the A car 1 is input to the travel control section 5 and the deceleration point calculation section 6.

Here, we will discuss the case where Unit B breaks down and stops in a place with no entrance/exit.

The rescuer calls for Unit A and turns on the rescue command switch 1b.
Make it. This command causes the travel control unit 5 to switch from the normal travel control mode to the rescue operation mode. Based on the same command, the deceleration point calculation unit 6 calculates the deceleration start position for side-by-side based on the input car position [2a (failure position)] of car No. B, and inputs it to the travel control unit 5.

The travel control section controls the travel of the own elevator car to bring it alongside the faulty car based on the outputs of the deceleration point calculation section 6 and the direction selection section 7.

After the car of Unit A came to a stop next to the car of Unit B, the rescuer opened the side door of the car, exposed the gangplank, transferred the passengers of Unit B to the car of Unit A, and rescued them. (Problems to be Solved by the Invention) Conventional rescue operations are controlled as described above, but the pulse generator that emits the basic signal for detecting the car position is connected to the shaft of the elevator drive motor or the overspeed detection protection device (
It is attached to the rotating shaft of the governor. Therefore, in the case of motor shaft installation, the pulse rate may differ depending on the motor rotation speed, deceleration rate of the elevator car drive reducer, etc., and in the case of cabana installation, the pulse rate may differ depending on the diameter of the cabana sheave. Even if the pulse rates match initially, they may differ slightly due to changes over time (mechanical friction, etc.).
In some cases, rescue may be difficult. The object of the present invention is to solve the above-mentioned problems and to provide a car position detection device that can extremely increase the accuracy of placing the car next to a faulty machine during emergency operation of an elevator. [Structure of the invention] (Means for solving problem II) Section 4 regarding the means and operations for achieving the object of the present invention
Let's explain using part of the diagram. Elevator control device 1
has a memory 13 in which the ratio data of the pulse rate of the adjacent machine 2 and the pulse rate of the own machine is recorded. The car position data 2a of the adjacent car 2 is inputted and inputted to the position data correction section 10. The position data correction unit 10 inputs the ratio data from the memory 13, converts the position data into the pulse rate of the own car, and inputs it to the elevator #control unit 8.
The control section 8 inputs the car position of its own car from the position detection section 4, and also inputs the signal from the rescue operation command switch 1b. (Function) In the above configuration, when the adjacent unit 2 fails and stops at a position with no entrance/exit, the elevator control device 1
Receiving rescue operation command 1b (operated by the rescuer), inputs the stop position data of the failed machine 2, converts it to the pulse rate of the own machine, and controls the own machine to move alongside the failed machine based on the resulting data. .

Therefore, rescue operation can be performed correctly even if there is a difference in the position detection pulse rate of the two elevators. (Example) An example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. Control device 1
The elevators of (Unit A) and Control Unit 2 (Unit B) are adjacent to each other. Although the control device M2 is omitted, it has the same configuration as the control device I. A signal from a pulse generator 3 that generates pulses as the A car runs is input to the elevator car position detection device 4, and the detected car position 1a is input to the elevator control section 8 and then to the B car control device 2.

The signal from the rescue operation command switch is input to the elevator control section 8. The position data of the top floor is taken out from the floor position data storage section (not shown) in the control section 8 and is input to the correction rate calculation section 9. The calculation unit 9 also receives floor position data of the top floor owned by the control device 2 of the B unit via the data transmission unit 11, calculates the pulse rate ratio from both data, and sends the resulting data to the position data correction unit. Enter 10. When the elevator is installed, the floor position data of each unit is obtained by actually running the entire ascending and descending stroke and counting the running pulses generated at that time. Therefore, the ratio of the pulse count position data of the floor common to both units is calculated. is the ratio of the val slate.

The position data correction unit 10 inputs the correction rate data and the position data of car No. B, and sends the corrected data to the elevator control unit 8.
Output to.

The functions and effects of the examples will be explained below. We will discuss a case where Unit B breaks down and stops mid-floor, and the passengers are rescued by Unit A. Assume the conditions are as follows.

Top floor position data of unit A = OA8C:H (27000 in decimal notation) Top floor position data of unit B = OBB8H (decimal te a O O O) Fault position data of unit B = 0708H (in decimal notation) 18
00) The elevator control device 2 of the B car sends its own car position data (0708H in binary) to the position data correction unit 1 of the A car.
Output to 0. Similarly, it transmits its top floor position data (O B 8 8 H) to the data transmission section of car A. The correction rate calculation unit 9 receives the above-mentioned received data from the data transmission unit, inputs the top floor position data (OA8CH) of the own car from the elevator control unit 8, and calculates the correction rate (○A8C'/OBB8=0. 9) and outputs the resulting value of 0.9 to the correction section 10. The correction unit 10 receives the input failure level! At (708H), X0 and 9 are corrected, and the result (654H) is output to the elevator control unit 8.

Hereinafter, the processing in the control unit 8 is the same as that in Fig. 6, so the details will be omitted, but the elevator control unit 8 is indicated by the corrected car position data of car B (654H in binary, 1620 in decimal). Control the aircraft so that it approaches the current position. Although the position of the top floor is the same, the position data is different such as OA8CH and OBB8H due to the difference in pulse rate. Therefore, the failure location data of unit B (708H
) is used as is. As shown below, 708H - 645H = B4HB4H (
A horizontal alignment error of 180 in decimal numbers occurs. This is I
Calculated at C1m/1 pulse, it would be 1.8m, making rescue work impossible.

However, by making the correction as mentioned earlier, this error is absorbed and lateral control is performed accurately, making rescue work extremely easy. Flowcharts showing an example of the processing of the correction rate calculation section 9 and the position data correction section 11 described above are shown in FIGS. 2 and 3.

In the embodiment shown in Fig. 1, the ratio data of the pulse rate of the adjacent units, that is, the correction rate, is calculated from the ratio of the common top floor position data of each unit, but this calculation is performed externally, and the result is It is also possible to directly write only the correction rate to the memory inside the control device using a console or the like and use this when necessary (FIG. 4).

There is also a method of writing to ROM without using a console or the like. In this embodiment, the received data is corrected, but when the faulty machine sends position data, it is also possible to perform correction processing in advance before sending it, and the receiving machine can use it directly. [Effects of the Invention] According to the present invention, when one of the adjacent elevators breaks down, when the other elevator is used for rescue operation, even if the position detection pulse rate of each elevator is different, it is possible to accurately locate the rescue car from the failed car. The rescue operation can be carried out smoothly because it can be placed next to the vehicle.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG.
FIG. 3 is a flowchart showing an example of the processing of the correction rate calculation section and position data correction section of FIG. FIG. 4 is a diagram showing another embodiment, and FIGS. 5 and 6 are diagrams showing a position detection method of a conventional rescue operation system. 1... Unit A elevator control device, 1a... Unit A car position data, lb... Unit A rescue command switch, 2... Unit B elevator control device, 2a... Unit B car position data, 3... Pulse generator, 4... Car position detection section, 8... Elevator control section, 9... Correction rate calculation section, 10... Position data correction section, 11... Data transmission section. Agent Patent Attorney Noriyuki Ken Yudo Deshimaru Ken

Claims (1)

[Claims] When a malfunctioning elevator occurs in a plurality of parallel elevators that detect the car position by adding/subtracting pulses generated as the elevator car runs,
In a rescue operation system that rescues passengers by placing a normal car whose position is detected by the above-mentioned pulse count value next to a faulty car and transferring passengers, the distance per pulse between the position detection pulse of the faulty elevator and the position detection pulse of the own car is determined. What is claimed is: 1. An elevator position detection device comprising: a recording section for recording ratio data; and a correction processing section for correcting position data of a failed elevator using the correction data.