CN108394772B - Elevator balance coefficient detection method and system - Google Patents
Elevator balance coefficient detection method and system Download PDFInfo
- Publication number
- CN108394772B CN108394772B CN201810106833.4A CN201810106833A CN108394772B CN 108394772 B CN108394772 B CN 108394772B CN 201810106833 A CN201810106833 A CN 201810106833A CN 108394772 B CN108394772 B CN 108394772B
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- Prior art keywords
- elevator
- photoelectric encoder
- pulse number
- car
- balance coefficient
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
Abstract
The invention discloses a method and a system for detecting an elevator balance coefficient, wherein the method comprises the following steps: increasing a preset load for the elevator car, starting the elevator and starting to operate the elevator car; calculating the pulse number of the photoelectric encoder within a preset time according to the received data signal detected by the photoelectric encoder, and calculating the current according to the calculated pulse number; when the pulse number and the current of the photoelectric encoder are both smaller than preset values, the elevator is in a balanced load state, and the balance coefficient of the elevator is calculated and displayed. When the elevator is normally leveled and the load is balanced, the balance coefficient of the elevator is calculated and displayed, so that manpower and material resources are saved, and the operation of debugging personnel is greatly facilitated.
Description
Technical Field
The invention relates to the technical field of elevator detection, in particular to a method and a system for detecting an elevator balance coefficient.
Background
The method for obtaining the balance coefficient of the elevator commonly used at present mainly adopts a direct weighing method, namely, the parts such as an elevator car, a counterweight and the like are directly weighed, so that the balance coefficient of the elevator is directly calculated. Specifically, the car is added with a weight to make a balance coefficient, such as 25%, 50%, 80%, 100%, 120% of load, and the like, each item requires to carry the load into the elevator car during operation, and the weight of the.
Disclosure of Invention
The invention aims to solve the technical problems that the existing elevator balance coefficient acquisition method is realized by carrying a load into an elevator car, manpower and material resources are wasted, and the operation is inconvenient.
In order to solve the technical problem, the technical scheme adopted by the invention is to provide an elevator balance coefficient detection method, which comprises the following steps:
increasing a preset load for the elevator car, starting the elevator and starting to operate the elevator car;
calculating the pulse number of the photoelectric encoder within a preset time according to the received data signal detected by the photoelectric encoder, and calculating the current according to the calculated pulse number;
when the pulse number and the current of the photoelectric encoder are both smaller than preset values, the elevator is in a balanced load state, and the balance coefficient of the elevator is calculated and displayed.
Preferably, when the pulse number or the current of the photoelectric encoder is larger than a preset value, the elevator is in an unbalanced load state.
Preferably, when the elevator is in an unbalanced load state, if the pulse number direction of the photoelectric encoder is consistent with the direction of the empty car, the load of the elevator car is overlarge; otherwise, the elevator car is under-loaded.
Preferably, the method further comprises the step of opening a main contactor and a band-type brake of the elevator after the elevator is started.
Preferably, the data signal detected by the photoelectric encoder comprises the geometric displacement of the output shaft of the driving motor.
The invention also provides a system for detecting the balance coefficient of the elevator, which comprises:
the photoelectric encoder converts mechanical geometric displacement on the output shaft of the driving motor into pulse or digital signals through photoelectric conversion;
the analysis processing module is used for determining that the elevator is in a balanced load state when the pulse number and the current of the photoelectric encoder are smaller than preset values, and otherwise, determining that the elevator is in an unbalanced load state; when the elevator is in an unbalanced load state, if the pulse number direction of the photoelectric encoder is consistent with the direction of the no-load car, determining that the load of the car is too large, otherwise, determining that the load of the car is too small;
the digital signal processor DSP receives the data signals detected by the photoelectric encoder, calculates the pulse number of the photoelectric encoder within a preset time according to the received data signals, and calculates the current according to the calculated pulse number;
the driving motor drives the elevator car to run;
and the data processing module is used for calculating and displaying the balance coefficient of the elevator according to the result of the analysis processing module.
The invention provides a method and a system for detecting the balance coefficient of an elevator, which can be used for calculating and displaying the balance coefficient of the elevator when the elevator is normally leveled and is balanced in load, thereby saving manpower and material resources and greatly facilitating the operation of debugging personnel.
Drawings
FIG. 1 is a flow chart of a method for detecting the balance coefficient of an elevator according to the present invention;
fig. 2 is a schematic structural diagram of an elevator balance coefficient detection system in the invention.
Detailed Description
The method aims to solve the problems that manpower and material resources are wasted and operation is inconvenient due to the fact that the load is carried in an elevator car in the existing method for obtaining the elevator balance coefficient. The invention provides a method and a system for detecting the balance coefficient of an elevator, which can be used for calculating and displaying the balance coefficient of the elevator when the elevator is normally leveled and is balanced in load, thereby saving manpower and material resources and greatly facilitating the operation of debugging personnel.
The invention is described in detail below with reference to the drawings and the detailed description.
The embodiment of the invention provides a method for detecting an elevator balance coefficient, which comprises the following steps as shown in figure 1:
and S1, adding a preset load to the elevator car.
And S2, starting the elevator and starting to run the car.
And S3, opening a main contactor and a band-type brake of the elevator.
And S4, receiving a data signal detected by the photoelectric encoder, wherein the data signal comprises the geometric displacement of the output shaft of the driving motor.
The photoelectric encoder is a sensor which converts mechanical geometric displacement on an output shaft of a driving motor into pulse or digital signals through photoelectric conversion, is widely applied and comprises a grating disc and a photoelectric detection device. The grating disk is formed by equally dividing a circular plate with a certain diameter into a plurality of rectangular holes. Because the photoelectric detection device is coaxial with the driving motor, when the driving motor rotates, the grating disk and the driving motor rotate simultaneously, a plurality of pulse signals are detected and output by the detection device composed of electronic elements such as light emitting diodes, and the current rotating speed of the driving motor can be reflected by calculating the output number of the photoelectric encoder per second.
And S5, calculating the pulse number of the photoelectric encoder in the preset time according to the received data signal.
And S6, calculating the current according to the calculated pulse number.
S7, judging whether the pulse number and the current of the photoelectric encoder are both smaller than preset values, and if so, turning to S8; otherwise, go to S9.
S8, the elevator is in the state of balanced load, and S13 is turned.
S9, the elevator is in the unbalanced load state, and S10 is turned.
And S10, judging whether the pulse number direction of the photoelectric encoder is consistent with the direction of the unloaded car, if so, turning to S11, and otherwise, turning to S12.
S11, the elevator car is overloaded, and S13 is turned.
S12, the elevator car is under load, and S13 is turned.
And S13, calculating and displaying the balance coefficient and the unbalance coefficient of the elevator.
The embodiment of the present invention further provides an elevator balance coefficient detection system, as shown in fig. 2, including:
the photoelectric encoder 10 converts the mechanical geometric displacement on the output shaft of the driving motor 40 into a pulse or a digital signal by photoelectric conversion.
The analysis processing module 20 determines that the elevator is in a balanced load state when the pulse number and the current of the photoelectric encoder 10 are both smaller than preset values, and otherwise determines that the elevator is in an unbalanced load state; when the elevator is in an unbalanced load state, if the pulse number direction of the photoelectric encoder 10 is consistent with the direction of the no-load car, determining that the load of the car is too large, otherwise, determining that the load of the car is too small;
the digital signal processor DSP30 receives the data signal detected by the photoelectric encoder 10, calculates the number of pulses of the photoelectric encoder 10 within a preset time according to the received data signal, and calculates the current according to the calculated number of pulses;
a driving motor 40 for driving the elevator car to run;
and the data processing module 50 calculates and displays the balance coefficient of the elevator according to the result of the analysis processing module 20.
The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made by anyone in the light of the present invention, all the technical solutions similar or similar to the present invention, fall within the protection scope of the present invention.
Claims (3)
1. The method for detecting the balance coefficient of the elevator is characterized by comprising the following steps of:
increasing a preset load for the elevator car, starting the elevator and starting to operate the elevator car;
calculating the pulse number of the photoelectric encoder within a preset time according to the received data signal detected by the photoelectric encoder, and calculating the current according to the calculated pulse number;
when the pulse number and the current of the photoelectric encoder are both smaller than preset values, the elevator is in a balanced load state, and the balance coefficient of the elevator is calculated and displayed;
when the pulse number or the current of the photoelectric encoder is larger than a preset value, the elevator is in an unbalanced load state;
when the elevator is in an unbalanced load state, if the pulse number direction of the photoelectric encoder is consistent with the direction of the no-load car, the load of the elevator car is overlarge; otherwise, the elevator car is under-loaded;
the data signal detected by the photoelectric encoder comprises the geometric displacement of the output shaft of the driving motor.
2. The method for detecting the balance coefficient of the elevator as claimed in claim 1, further comprising opening a main contactor and a band-type brake of the elevator after the elevator is started.
3. An elevator balance coefficient detection system, comprising:
the photoelectric encoder converts mechanical geometric displacement on the output shaft of the driving motor into pulse or digital signals through photoelectric conversion;
the analysis processing module is used for determining that the elevator is in a balanced load state when the pulse number and the current of the photoelectric encoder are smaller than preset values, and otherwise, determining that the elevator is in an unbalanced load state; when the elevator is in an unbalanced load state, if the pulse number direction of the photoelectric encoder is consistent with the direction of the no-load car, determining that the load of the car is too large, otherwise, determining that the load of the car is too small;
the digital signal processor DSP receives the data signals detected by the photoelectric encoder, calculates the pulse number of the photoelectric encoder within a preset time according to the received data signals, and calculates the current according to the calculated pulse number;
the driving motor drives the elevator car to run;
and the data processing module is used for calculating and displaying the balance coefficient of the elevator according to the result of the analysis processing module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810106833.4A CN108394772B (en) | 2018-02-02 | 2018-02-02 | Elevator balance coefficient detection method and system |
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| CN201810106833.4A CN108394772B (en) | 2018-02-02 | 2018-02-02 | Elevator balance coefficient detection method and system |
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| CN108394772A CN108394772A (en) | 2018-08-14 |
| CN108394772B true CN108394772B (en) | 2021-02-26 |
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| CN110127484B (en) * | 2019-06-14 | 2023-11-14 | 嘉兴技师学院 | Elevator bridge box operation position monitoring and early warning system and method |
| CN112279031B (en) * | 2020-10-28 | 2022-04-26 | 广州广日电梯工业有限公司 | Calibration method and calibration device for elevator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104118781A (en) * | 2014-07-08 | 2014-10-29 | 上海新时达电气股份有限公司 | Method for determining balance coefficient |
| CN106348117A (en) * | 2016-11-18 | 2017-01-25 | 广州日滨科技发展有限公司 | Calculation method and device of elevator equilibrium coefficient |
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| FR2934253A1 (en) * | 2008-07-28 | 2010-01-29 | Emile Kadoche | Electrically controlled lift, has cabin whose mass is equal to or slightly heavier than that of counterweight, and maneuver card cooperating with absolute coder that calculates displacement distance before leaving parking lot |
| CN104627757B (en) * | 2013-11-15 | 2017-05-03 | 日立电梯（中国）有限公司 | Elevator starting compensation device and compensation method of elevator starting compensation device |
| CN105502116A (en) * | 2014-10-15 | 2016-04-20 | 江南嘉捷电梯股份有限公司 | Method used for measuring balance coefficient of elevator |
| CN104787628B (en) * | 2015-02-15 | 2016-08-17 | 徐田英 | A kind of elevator integration control system with security system |
| CN106395535B (en) * | 2016-11-18 | 2018-09-07 | 日立楼宇技术（广州）有限公司 | A kind of acquisition methods and device of balance coefficient of elevator |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104118781A (en) * | 2014-07-08 | 2014-10-29 | 上海新时达电气股份有限公司 | Method for determining balance coefficient |
| CN106348117A (en) * | 2016-11-18 | 2017-01-25 | 广州日滨科技发展有限公司 | Calculation method and device of elevator equilibrium coefficient |
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