JPS63143185A - 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 [Object of the Invention] (Industrial Application Field) The present invention relates to a rescue operation of an elevator in which passengers in a malfunctioning elevator are rescued by using another elevator.

(Conventional technology) As buildings become taller, elevators are required to be faster and more sophisticated.As part of improving service, elevators can be improved by dividing building floors into several zones. A method of reducing the number of floors to be answered is often used. As a result, the elevator in charge of the high M floors can respond to calls efficiently by passing through the lower floors. Such a passing zone is called an express zone.For example, in a building with 40 floors, the first to 25th floors may be set as express zones5, but if a breakdown occurs within the express zone, To rescue passengers trapped in the car, it is necessary to move the elevator to the nearest floor. In this case, elevator maintenance personnel must be called and it will take time to rescue the person. The method adopted to shorten this time is called elevator rescue operation, in which the elevator adjacent to the failed elevator is stopped at the failed position and passengers are rescued from the rescue exit provided on the side of the car. It is done to put out. To perform a rescue operation, the rescue vehicle receives accurate position information from the failed vehicle, starts traveling toward that location, accelerates and decelerates in the same manner as normal driving until it reaches the location of the failed vehicle, and then returns to the rescue vehicle. The crew members opened the rescue door on the side and rescued the failed unit.

In recent elevators, elevator position information is obtained by counting the output of a pulse generator using a tape wheel or the like attached to the rotating shaft of the motor or the car. In this case, the travel distance of the elevator and the number of generated pulses are directly proportional, and are usually set to about 5 mm/pulse. These pulses are input to the up/down counter in the elevator control device, and are used to raise the elevator. Sometimes by addition, and when it goes down, by subtraction.

The output of the up/down counter will indicate the elevator position. The output of the up/down counter is normally set to 16 bits, and the elevator control section handles this output data as reference position data and performs all controls related to travel. The data value is 01 for the lowest floor
001 (This is the value obtained by dividing each floor height by the above pulse rate (H indicates a hexadecimal number) 0 For example, if the floor height is 30
00+*m, pulse rate 5 mm/pulse,
The second floor is 0358H, and the third floor is 058011. Therefore, when stopping at 3 ftll, the elevator control section performs speed control so that the up/down counter value becomes 05110H.

(Problems to be Solved by the Invention) The rescue operation is configured to obtain this pulse value from the failed car, and the output of the up/down counter is sent to the rescue car by the rescue pulse transmission section. Therefore, the rescue car will receive the same data as the elevator control section of the failed car.

Accurate stopping position can be obtained. However, in the rescue operation device configured in this manner, a failure of the pulse generator may cause the rescue position to become inaccurate, which may pose a danger to the rescuer. The reason for this is that the pulse generator is composed of a photointerlator and a disk having slits, and uses pulses generated by the rotation of this disk, and no pulses are generated in the event of a failure.

If a failure occurs in the pulse generator, pulses will no longer be generated and the elevator will stop as a result, but it usually takes more than 3 seconds from the time the failure occurs to the stop.
2 to 3 m for elevators with a rating of 105 m/inch
runs and then stops. However, the position data that should be transmitted to the rescue aircraft stopped due to the failure.
The rescue vehicle begins traveling towards the location where the failure occurred. Then, when the rescue door in the car of the rescue car is opened, the car no longer exists where the failed car should normally be located due to the misalignment. When rescuers notice this, they manually adjust the position, but this not only takes extra time to rescue, but is also extremely dangerous for the rescuers. In other words, if the rescue door is opened, there is a risk of accidentally falling into the hoistway.

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator rescue operation device that improves the accuracy of the stop position of a rescue elevator that rescues an elevator with a malfunctioning position data output.

[Structure of the invention]

(Means for solving the problem) An abnormal position pulse comparing means of a position pulse signal is detected by a count signal of an up/down counter that counts an output signal from a pulse generator that outputs a position pulse signal according to the movement of the elevator. To detect. When the position pulse comparison means detects an abnormality in the position pulse signal, the distance to a stop at a predetermined elevator speed is accumulated at each predetermined sampling time, and the amount of position change corresponding to this distance is calculated by the distance calculation means; A rescue operation of an elevator having a rescue pulse correction means that uses the obtained position change amount as a correction value to a count signal of an up-down counter, and a transmission means that transmits the correction value from the rescue pulse correction means to the rescue elevator. Device.

(Function) Zero position pulse comparison means that counts the output signal of a pulse generator that outputs a position pulse signal in accordance with the movement of the elevator using an up/down counter, and is provided with a position pulse comparison means that detects an abnormality in this count signal. When a signal abnormality is detected.

Provided with rescue pulse correction means that uses the amount of position change obtained by the distance calculation means for calculating the distance to the elevator stop as a correction value to the count signal of the up-down counter,
This correction value is transmitted to the rescue elevator by a transmission means.

(Embodiment of the Invention) FIG. 1 is a block diagram of an electric heater rescue operation device based on the present invention. It is obtained by counting the elevator position information. Based on the count value from the up/down counter 2, the elevator control section 3 stops the elevator at a predetermined floor.

The speed information output by the speed control section 9 is input to the speed detection section 5, and is converted into a form that can be understood by the elevator control section 3, which is a microcomputer circuit.

The position pulse comparator 6 detects the output of the up/down counter 2 and detects an abnormality in the translation pulse. This function can be easily realized by checking the amount of change in the up/down counter while the elevator is running.

For example, in the case of an elevator with a rated speed of 180 m/win, there is a change of 600 pulses per second, so it is possible to confirm an abnormality based on the amount of pulse change during a fixed sampling time based on the speed information.

The distance calculation unit 7 has a function of adding speed information from the time of occurrence of an abnormality to the time of stopping, and converting it into distance data. This has a sampling time of 1O-sec and a rated speed of 180■
If the speed information indicates the maximum speed at /sin, it can be seen that the vehicle has traveled 30 m in 10 shoes. This is the second
As shown in the figure, by tracing the change in speed, the travel distance from the occurrence of an abnormality to the stop can be measured.

The rescue pulse correction section 8 corrects the output of the up/down counter 2 that has stopped due to a pulse abnormality by the amount of correction data provided by the distance calculation section 7, and transmits the corrected output to the rescue car via the rescue pulse transmission section 4. This correction adds when the elevator goes up and subtracts when it goes down.

In FIG. 2, conventionally, the area value of the velocity from the time of failure of the pulse generator to the time of stop is the error of the position pulse, and in the present invention, this area value is corrected using velocity data at a constant sampling time. FIG. 3 is a flowchart for performing correction at each sampling time.The distance calculation unit 7 receives the maximum speed, intermediate speed,
If the elapsed time for the three types of low speed signals is also obtained from a predetermined sampling time and the distance to the stop is integrated (step A), the area of speed approximation as shown in FIG. 2 can be obtained. The value obtained here is divided by the pulse rate of the own machine (step A).

If the rescue pulse correction section 8 adds and subtracts the value of the up/down counter 2 (step B), the stopping position of the failed machine can be approximately obtained. That is, the signal from the speed detection section 5 is 90% or more of the rated speed, 50% or more, and 1
There are at least 3 signals of 0% or higher, and the approximate speed is calculated based on the combination of these 3 signals, and if the control unit of the faulty machine is operating normally, it will be corrected by 9 minutes from the time when pulse input disappears until it stops. The results will be sent to the rescue unit.

〔Effect of the invention〕

The present invention aims to improve the reliability of position data, which is most important for rescue operations, and as a result, it not only improves rescue accuracy and avoids collisions, but also has the effect of realizing safety of rescuers and shortening rescue time. ing.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an elevator rescue operation system according to the present invention, FIG. 2 is a diagram showing changes in elevator speed when a failure occurs, and FIG. 3 is an operation flowchart of the block diagram shown in FIG. f51. 1...Pulse generator 2...Up/down counter 3...Elevator control section 4...Rescue pulse transmission section 5...Speed detection section 6.
...Position pulse comparison section 7...Distance calculation section 8...
Rescue pulse correction section 9...Speed control section agent Patent attorney Noriyoshi Chika Yudo Hirofumi Mitsumata 2nd N

Claims (1)

[Claims] A pulse generator that outputs a position pulse signal in accordance with the movement of an elevator; an up-down counter that counts the output signal of the pulse generator; and a position pulse signal based on the count signal from the up-down counter. a position pulse comparison means for detecting an abnormality in the position pulse signal; and when the position pulse comparison means detects an abnormality in the position pulse signal, it integrates the distance to a stop at a predetermined elevator speed at a predetermined sampling time and calculates a position corresponding to this distance. distance calculation means for calculating the amount of change; rescue pulse correction means for using the amount of position change obtained by the distance calculation means as a correction value to the count signal of the up/down counter; and a correction value from the rescue pulse correction means. and a transmission means for transmitting the information to the rescue elevator.