Method and system for realizing automatic accurate leveling of elevator

文档序号：728415 发布日期：2021-04-20 浏览：14次中文

阅读说明：本技术 电梯实现自动精准平层的方法及系统 (Method and system for realizing automatic accurate leveling of elevator ) 是由不公告发明人于 2019-10-17 设计创作，主要内容包括：本发明公开了一种电梯实现自动精准平层的方法及系统,该方法包括以下步骤：在电梯调试阶段,分别记录学习电梯轿厢在不同载重下进入目的楼层所对应的打滑距离,并对该打滑距离进行存储；电梯在运行时,实时获取电梯轿厢的载重量,根据电梯轿厢的载重量调取已存储的该载重量所对应的打滑距离；根据该打滑距离对电梯轿厢进入目的楼层的运行距离进行补偿,实现电梯轿厢在目的楼层的精准平层。本申请的电梯轿厢在运行时可实现自动精准平层,避免电梯轿厢出现欠平层或过平层的现象。(The invention discloses a method and a system for realizing automatic and accurate leveling of an elevator, wherein the method comprises the following steps: in the elevator debugging stage, respectively recording and learning the sliding distance corresponding to the condition that the elevator car enters a target floor under different loads, and storing the sliding distance; when the elevator runs, acquiring the load capacity of the elevator car in real time, and calling the stored sliding distance corresponding to the load capacity according to the load capacity of the elevator car; and compensating the running distance of the elevator car entering the target floor according to the slipping distance, and realizing accurate leveling of the elevator car on the target floor. The elevator car of this application can realize automatic accurate flat bed when the operation, avoids elevator car to appear the phenomenon of oweing the flat bed or crossing the flat bed.)

1. The method for realizing automatic and accurate leveling of the elevator is characterized by comprising the following steps of:

in the elevator debugging stage, respectively recording and learning the sliding distance corresponding to the condition that the elevator car enters a target floor under different loads, and storing the sliding distance;

when the elevator runs, acquiring the load capacity of the elevator car in real time, and calling the stored sliding distance corresponding to the load capacity according to the load capacity of the elevator car;

and compensating the running distance of the elevator car entering the target floor according to the slipping distance, and realizing accurate leveling of the elevator car on the target floor.

2. The method for realizing automatic accurate floor leveling of the elevator according to claim 1, wherein the learning of the slip distance corresponding to the elevator car entering the target floor under different loads is recorded respectively, and specifically:

collecting pulse signals output by a rotary encoder arranged on a traction sheave, recording the number of pulses of an elevator car entering a target floor from a magnetism isolating plate of the stopping floor to run between the magnetism isolating plates of the target floor, and recording the floor distance between a learning stopping floor and the target floor;

the elevator car respectively collects pulse signals output by rotary encoders arranged on traction wheels under different loads, records the number of pulses of the elevator car entering a target floor from a stopping floor for operation, and records the actual running distance of the elevator car entering the target floor from the stopping floor under different loads;

the difference between the floor distance between the stopping floor and the target floor and the actual travel distance of the elevator car from the stopping floor to the target floor under different loads is the slip distance.

3. The method for realizing automatic accurate floor leveling of the elevator according to claim 1, wherein the learning of the slip distance corresponding to the elevator car entering the target floor under different loads is recorded respectively, and specifically:

measuring and recording the distance between a landing sill of a stopping floor and the bottom of an elevator car running to the target floor after the elevator car enters the target floor leveling from the stopping floor, wherein the distance is the floor distance between the stopping floor and the target floor;

4. A method for realizing automatic accurate floor leveling of an elevator according to any one of claims 1 to 3, characterized in that the compensation of the travel distance of the elevator car into the destination floor is performed on the basis of the slip distance, further comprising:

after the elevator car enters a target floor, detecting whether the elevator car realizes accurate leveling;

if the elevator car has an over-leveling floor or an under-leveling floor at the target floor, the corresponding slipping distance of the elevator car under the load is recorded and learned again and stored, and the slipping distance stored under the load is updated.

5. The method for realizing automatic accurate floor leveling of the elevator according to any one of claims 1 to 3, characterized in that in the elevator commissioning phase, the method respectively records and learns the slip distance corresponding to the elevator car entering the destination floor under different loads, and before storing the slip distance, further comprises:

the threshold value of the maximum sliding distance of the elevator car is preset and stored.

6. The method for realizing automatic accurate leveling of the elevator according to claim 5, wherein in the debugging stage of the elevator, the method further comprises the steps of respectively recording and learning the slip distances corresponding to the elevator car entering the target floor under different loads, and storing the slip distances:

and comparing the recorded sliding distance corresponding to the elevator car entering the target floor under different loads with a preset maximum sliding distance threshold, and if the recorded sliding distance corresponding to the elevator car entering the target floor under different loads is greater than the preset maximum sliding distance threshold, sending a pre-alarm signal.

7. Method for achieving automatic accurate floor leveling of an elevator according to any one of claims 1-3, characterized in that in compensating the traveling distance of the elevator car into the destination floor on the basis of the slipping distance, the compensating distance for the traveling distance of the elevator car into the destination floor is the slipping distance.

8. System that automatic accurate flat bed was realized to elevator, its characterized in that includes:

the learning module is used for respectively recording and learning the corresponding slipping distance of the elevator car when the elevator car enters a target floor under different loads in the elevator debugging stage;

the storage module is used for storing the corresponding slipping distance when the elevator car enters a target floor under different loads, and the threshold value of the maximum slipping distance of the elevator car is also stored in the storage module;

the acquisition module is used for acquiring the load capacity of the elevator car in real time when the elevator runs and calling the stored sliding distance of the target floor corresponding to the load capacity according to the load capacity of the elevator car;

and the compensation module is used for compensating the running distance of the elevator car entering the target floor according to the slipping distance so as to realize accurate floor leveling.

9. The system for realizing automatic precise leveling of an elevator according to claim 8, further comprising:

the detection module is used for detecting whether the elevator car achieves accurate leveling after entering a target floor;

and the calibration module is used for recording and learning the corresponding slipping distance of the elevator car under the load again and storing the slipping distance when the elevator car has an over-leveling floor or an under-leveling floor at a target floor, and updating the stored slipping distance under the load.

10. The system for realizing automatic precise leveling of an elevator according to claim 8, further comprising:

Technical Field

The invention relates to the field of elevator control, in particular to a method and a system for realizing automatic and accurate leveling of an elevator.

Background

The elevator steel wire rope is hung on a traction sheave of a traction machine, and the traction sheave drives the steel wire rope to move through friction force to draw the elevator car to move up and down. When the elevator runs, particularly in a high-speed heavy-load direction, a traction sheave and a steel wire rope of the elevator slide relatively to form a slip phenomenon. In the prior art, in order to improve the accuracy of leveling, a control system of an elevator can correct the position of the elevator when the elevator passes through a leveling magnetic shield, but in the process of implementing the invention, the inventor finds the following problems in the prior art: when the elevator enters a target floor, the speed reduction curve of the elevator is set, the change of the leveling precision can be influenced by the slip distance formed by slip between the target floors, and the slip distance can be different due to the change of the load and the speed of the elevator car in the running process of the elevator, so that the leveling precision can be caused to be over-leveling or under-leveling at the target landing along with the difference of the load.

Disclosure of Invention

The invention aims to provide a method and a system for realizing automatic and accurate leveling of an elevator.

The technical scheme is as follows:

the invention discloses a method for realizing automatic and accurate leveling of an elevator.

The method comprises the following steps:

and compensating the running distance of the elevator car entering the target floor according to the slipping distance, and realizing accurate leveling of the elevator car on the target floor.

Respectively record and learn the corresponding distance of skidding of elevator car entering the destination floor under different loads, specifically do:

The method for compensating the running distance of the elevator car into the target floor according to the sliding distance further comprises the following steps:

after the elevator car enters a target floor, detecting whether the elevator car realizes accurate leveling;

At the elevator debugging stage, respectively record and learn the distance of skidding that the elevator car got into the corresponding of destination floor under different loads to before storing this distance of skidding, still include:

the threshold value of the maximum sliding distance of the elevator car is preset and stored.

At the elevator debugging stage, respectively record and learn the distance of skidding that the elevator car got into the corresponding of destination floor under different loads to after saving this distance of skidding, still include:

In compensating for the traveling distance of the elevator car to the target floor based on the slip distance, the compensation distance for compensating for the traveling distance of the elevator car to the target floor is the slip distance.

The invention also discloses a system for realizing automatic and accurate leveling of the elevator.

The system comprises:

and the compensation module is used for compensating the running distance of the elevator car entering the target floor according to the slipping distance so as to realize accurate floor leveling.

The system further comprises:

the detection module is used for detecting whether the elevator car achieves accurate leveling after entering a target floor;

The system further comprises:

The following illustrates the advantages or principles of the invention:

1. the elevator car can appear the condition of oweing the flat bed or crossing the flat bed when getting into the destination floor, and the distance of skidding that the elevator car got into the destination floor under different loads is learnt in this application record, when the elevator car is moving, acquires the loading capacity of elevator car, compensates the operating distance of elevator car according to the distance of skidding that the elevator car corresponds under this loading capacity, and the operating distance of elevator car is then increased to the condition that the elevator car appears the under-flat bed, and the operating distance of elevator car is then reduced to the condition that the elevator car appears crossing the flat bed. This application is through the distance of skidding of compensation elevator car operation to the target floor, avoids elevator car to appear the condition of oweing the flat bed or crossing the flat bed when getting into the target floor, realizes elevator car's accurate flat bed, ensures elevator car's normal operating.

2. In one embodiment, the floor distance between the stopping floor and the target floor of the elevator car is recorded through a pulse signal output by a rotary encoder on the traction sheave, then the actual running distance of the elevator car from the stopping floor to the target floor under different loads is recorded, the situations of flat floor, under-flat floor or over-flat floor can occur when the elevator runs to the target floor under different loads, and the actual running distance of the elevator car is larger than the floor distance, smaller than the floor distance or equal to the floor distance. The difference value of the recorded floor distance and the actual distance of the elevator car is positive or negative or equal to zero, when the difference value is positive, the elevator car is under-leveling, the running distance of the elevator car needs to be increased, when the difference value is negative, the elevator car is over-leveling, the running distance of the elevator car needs to be reduced, when the difference value is zero, the elevator realizes accurate leveling, and the running distance of the elevator car does not need to be compensated.

3. In another embodiment, the floor distance between the stopping floor and the target floor can be measured through manual measurement of debugging personnel, then the actual running distance of the elevator car from the stopping floor to the target floor under different loads is recorded by collecting pulse signals output by a rotary encoder on the traction wheel, the difference value between the floor distance and the actual running distance of the elevator car is the slipping distance, and the running distance of the elevator car is compensated according to the slipping distance.

4. After the running distance of the elevator car is compensated, if the elevator car still has an under-leveling layer or an over-leveling layer, the slipping distance of the elevator car under the load is recorded and learned again, the originally recorded slipping distance is updated, and the situation that the elevator car still has the over-leveling layer or the under-leveling layer after compensation is avoided.

5. In the elevator debugging stage, a threshold value of the maximum sliding distance of the elevator car needs to be preset, the preset threshold value can be preset according to experience of elevator debugging personnel, when the sliding distance is greater than the preset threshold value, the traction force of a traction sheave is possibly insufficient, when the traction force of the traction sheave is insufficient, an elevator accident is easily caused, and therefore when the sliding distance is greater than the preset threshold value, a preset alarm signal is sent out to remind elevator maintenance or management personnel to timely maintain the elevator.

6. The system for realizing automatic and accurate leveling of the elevator comprises a learning module, a storage module, an acquisition module and a compensation module, the system learns the slipping distance corresponding to the situation that the elevator car enters the target floor under different loads through the learning module, the slipping distance is stored in the storage module, the acquisition module acquires the real-time load capacity of the elevator car when the elevator car runs, the corresponding slipping distance under the load capacity stored in the storage module is called, the compensation module compensates the running distance of the elevator car according to the slipping distance, and the situation that the elevator car is over-leveled or under-leveled is avoided.

7. The system for realizing automatic and accurate leveling of the elevator further comprises a detection module and a calibration module, after the running distance of the elevator car is compensated, whether leveling of the elevator car is realized or not is also required, if leveling is not realized after compensation, the calibration module records the slipping distance of the elevator car under the load again, and the slipping distance stored in the system is updated.

8. The system for realizing automatic and accurate leveling of the elevator further comprises a pre-alarm module, and when the sliding distance is greater than the preset threshold value of the maximum sliding distance, a pre-alarm signal is sent out, so that the elevator accident caused by insufficient traction force of the traction sheave is avoided.

Drawings

Fig. 1 is a general flowchart of a method for realizing automatic precise leveling of an elevator of the embodiment.

Detailed Description

The following provides a detailed description of embodiments of the invention.

As shown in fig. 1, the present embodiment discloses a method for realizing automatic accurate leveling of an elevator, which includes the following steps:

s100, in the elevator debugging stage, respectively recording and learning the sliding distance corresponding to the elevator car entering a target floor under different loads, and storing the sliding distance;

s200, acquiring the load capacity of the elevator car in real time when the elevator runs, and calling the stored sliding distance corresponding to the load capacity according to the load capacity of the elevator car;

and S300, compensating the running distance of the elevator car entering the target floor according to the slipping distance, and realizing accurate leveling of the elevator car on the target floor.

The elevator car can appear the condition of underbalancing or cross flat when getting into the destination floor, and the distance of skidding that the elevator car got into the destination floor under different loads is learnt in this embodiment record, and when the elevator car was in operation, obtain the loading capacity of elevator car, compensates the operating distance of elevator car according to the distance of skidding that the elevator car corresponds under this loading capacity, and the operating distance of elevator car is then increased when the condition of underbalancing appears in the elevator car, and the operating distance of elevator car is then reduced when the condition of cross flat appears in the elevator car. This embodiment is through the distance of skidding of compensation elevator car operation to the target floor, avoids elevator car to appear the condition of oweing the flat bed or passing the flat bed when getting into the target floor, realizes elevator car's accurate flat bed, ensures elevator car's normal operating.

In one embodiment, the method for learning the sliding distance of the elevator car entering the destination floor under different loads is characterized by comprising the following steps:

In the embodiment, the floor distance between the stop floor and the target floor of the elevator car is recorded through a pulse signal output by a rotary encoder on the traction sheave, then the actual running distance from the stop floor to the target floor of the elevator car under different loads is recorded, the situations of flat floor, underbalanced floor or over-flat floor can occur when the elevator car runs to the target floor under different loads, and the actual running distance of the elevator car is greater than the floor distance, less than the floor distance or equal to the floor distance. The difference value of the recorded floor distance and the actual distance of the elevator car is positive or negative or equal to zero, when the difference value is positive, the elevator car is under-leveling, the running distance of the elevator car needs to be increased, when the difference value is negative, the elevator car is over-leveling, the running distance of the elevator car needs to be reduced, when the difference value is zero, the elevator realizes accurate leveling, and the running distance of the elevator car does not need to be compensated.

In this embodiment, the stopping floor of the elevator can be any floor, for example, the first floor or the second floor, etc., the destination floor of the elevator can be any floor except the stopping floor, such as the third floor, the fourth floor, etc., the sliding distance of the elevator car is related to the load of the elevator car, and under the same load, the sliding distance of the elevator car is the same from the first floor to the second floor and from the first floor to the third floor. Therefore, in the debugging stage, the load of the elevator car is only changed, and the sliding distance of the elevator car to the target floor under different loads is recorded.

In another embodiment, the method records and learns the sliding distance of the elevator car entering the destination floor under different loads, specifically:

In the embodiment, the floor distance between the stopping floor and the target floor is measured by manually measuring by a debugging person, then the actual running distance of the elevator car from the stopping floor to the target floor under different loads is recorded by acquiring pulse signals output by a rotary encoder on the traction wheel, the difference value between the floor distance and the actual running distance of the elevator car is the slipping distance, and the running distance of the elevator car is compensated according to the slipping distance.

The embodiment of compensating the travel distance of the elevator car to the destination floor according to the slip distance further comprises:

after the elevator car enters a target floor, detecting whether the elevator car realizes accurate leveling;

After the running distance of the elevator car is compensated, if the elevator car still has an under-leveling layer or an over-leveling layer, the slipping distance of the elevator car under the load is recorded and learned again, the originally recorded slipping distance is updated, and the situation that the elevator car still has the over-leveling layer or the under-leveling layer after compensation is avoided. Whether accurate flat bed is realized to the elevator of accessible flat bed inductor on the elevator car, the magnetic shield in the well and elevator car's operation curve in this embodiment detects.

the threshold value of the maximum sliding distance of the elevator car is preset and stored.

At the elevator debugging stage, respectively record and learn the distance of skidding that the elevator car got into the corresponding of destination floor under different loads to after saving this distance of skidding, still include:

In the elevator debugging stage, a threshold value of the maximum sliding distance of the elevator car needs to be preset, the preset threshold value can be preset according to experience of elevator debugging personnel, when the sliding distance is greater than the preset threshold value, the traction force of a traction sheave is possibly insufficient, when the traction force of the traction sheave is insufficient, an elevator accident is easily caused, and therefore when the sliding distance is greater than the preset threshold value, a preset alarm signal is sent out to remind elevator maintenance or management personnel to timely maintain the elevator.

This embodiment also discloses a system for automatic accurate flat bed is realized to elevator, and this system includes:

and the compensation module is used for compensating the running distance of the elevator car entering the target floor according to the slipping distance so as to realize accurate floor leveling.

The system for realizing automatic and accurate leveling of the elevator learns the slipping distance corresponding to the situation that the elevator car enters the target floor under different loads through the learning module, the slipping distance is stored in the storage module, the real-time load capacity of the elevator car is acquired by the acquisition module when the elevator car runs, the corresponding slipping distance under the load capacity stored in the storage module is called, the compensation module compensates the running distance of the elevator car according to the slipping distance, the situation that the elevator car passes through the leveling floor or is not leveled is avoided, and the elevator car can realize accurate leveling when running to the target floor.

The system further comprises:

the detection module is used for detecting whether the elevator car achieves accurate leveling after entering a target floor;

After the running distance of the elevator car is compensated, whether the elevator car achieves leveling or not needs to be detected, if the leveling is not achieved after the compensation, the calibration module records the slipping distance of the elevator car under the load again, and updates the slipping distance stored in the system.

The system further comprises:

and the pre-alarm module is used for sending out a pre-alarm signal when the recorded corresponding sliding distance of the elevator car entering the target floor under different loads is greater than a preset threshold value of the maximum sliding distance. When the slipping distance is larger than the preset threshold value of the maximum slipping distance, a pre-alarm signal is sent out, and the elevator accident caused by insufficient traction force of the traction sheave is avoided.

The above are merely specific embodiments of the present invention, and the scope of the present invention is not limited thereby; any alterations and modifications without departing from the spirit of the invention are within the scope of the invention.

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