An elevator vibration reduction control method, system, elevator and storage medium

Abstract

The application discloses an elevator vibration reduction control method and system, an elevator and a storage medium, and belongs to the elevator vibration reduction technical field.The application establishes the correlation between the operating conditions and the excitation frequencies by obtaining the vibration excitation frequencies of the target elevator under the scheduled operating conditions; determines the corresponding vibration reduction matching frequencies according to the correlation between the real-time excitation frequencies and the operating condition-excitation frequency correlation; determines the target control parameters of the electromagnetic damper according to the vibration reduction matching frequencies and the vibration reduction control strategy; and controls the electromagnetic damper according to the target control parameters, so that the vibration reduction can be effectively realized, and the beneficial effect of reducing the noise is achieved.

Description

Technical Field

[0001] This invention relates to the field of elevator vibration reduction technology, and in particular to an elevator vibration reduction control method, system, elevator, and storage medium. Background Technology

[0002] As a device for vertical movement within a building, elevators generate vibration excitation frequencies that vary under different operating conditions, such as being unloaded, half-loaded, fully loaded, ascending or descending, and during starting and braking. This results in instantaneous changes in building vibration and noise levels, significantly impacting the physical and mental health of building users. National Standard GB55038-2025 stipulates that the low-frequency equivalent sound level propagated from elevators to bedrooms and living rooms should not exceed 30 dB and 35 dB, respectively, imposing stringent technical requirements for elevator vibration and noise reduction.

[0003] Current elevator vibration reduction technologies typically employ damping materials such as rubber and springs, installed on structural components like elevator load-bearing beams, drive units, and sheaves. These damping devices are designed and selected based on the excitation frequency of the elevator under a fixed operating condition; once installed, the damping parameters remain constant. When changes in elevator operation cause alterations in the excitation frequency, the fixed-parameter damping devices struggle to effectively suppress vibration and noise, failing to meet the requirements of modern buildings for comprehensive elevator vibration and noise reduction under all operating conditions. Currently, systems capable of self-sensing, self-adjusting, and actively controlling elevator vibration and noise reduction lack practical applications. Therefore, an active control method that can automatically match damping parameters based on the elevator's real-time operating conditions is urgently needed.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this invention is to provide an elevator vibration reduction control method, system, elevator, and storage medium, aiming to reduce the noise generated during elevator operation. To achieve the above objective, this invention provides an elevator vibration reduction control method, which includes the following steps: Obtain the vibration excitation frequency of the target elevator under the predetermined operating conditions, and establish the correlation between the operating conditions and the excitation frequency; The corresponding vibration reduction matching frequency is determined based on the correlation between the real-time excitation frequency and the operating condition-excitation frequency. The target control parameters of the electromagnetic damper are determined based on the vibration reduction matching frequency and vibration reduction control strategy. The electromagnetic damper is controlled according to the target control parameters.

[0006] Optionally, the step of determining the corresponding vibration damping matching frequency based on the correlation between the real-time excitation frequency and the operating condition-excitation frequency includes: The vibration reduction matching frequency is calculated based on the real-time excitation frequency and the preset vibration physics formula. The preset vibration physical formula is as follows: λ=f n / f, f n For real-time excitation frequency, f To match the vibration reduction frequency, λ The frequency ratio is a predetermined set value. λ is greater than .

[0007] Optionally, before the step of determining the corresponding vibration damping matching frequency based on the correlation between the real-time excitation frequency and the operating condition-excitation frequency, the method further includes: Obtain the real-time excitation frequency of the vibration damper caused by the real-time operating conditions of the target elevator.

[0008] Optionally, the step of obtaining the real-time excitation frequency of the vibration damper caused by the real-time operating conditions of the target elevator includes: Receive real-time elevator operating data, including: running direction and load signal; The real-time operating conditions of the target elevator are determined based on the correlation between the operating data and the operating conditions-excitation frequency.

[0009] Optionally, the step of obtaining the vibration excitation frequency under the predetermined operating conditions of the target elevator and establishing the correlation between the operating conditions and the excitation frequency includes: The target elevator is controlled to operate under each of the predetermined operating conditions, and vibration excitation frequency data under each of the predetermined operating conditions is collected; Establish a correspondence between operating conditions and excitation frequencies based on each operating condition and the corresponding vibration excitation frequency data to obtain multiple correspondences between operating conditions and excitation frequencies; The association relationship is generated based on all the described operating conditions and excitation frequency correspondences.

[0010] Optionally, the step of controlling the electromagnetic damper according to the target control parameters includes: Generate the corresponding digital-to-analog conversion control signal based on the target control parameters; The input current of the electromagnetic damper is adjusted according to the digital-to-analog conversion control signal; The damping force of the electromagnetic damper is changed according to the adjusted input current in order to perform vibration reduction control on the target elevator.

[0011] Furthermore, to achieve the above objectives, the present invention also provides an elevator vibration reduction system, the elevator vibration reduction system comprising: The acquisition module is used to acquire the vibration excitation frequency of the target elevator under the predetermined operating conditions and establish the correlation between the operating conditions and the excitation frequency. The matching module is used to determine the corresponding vibration reduction matching frequency based on the correlation between the real-time excitation frequency and the operating condition-excitation frequency; The analysis module is used to determine the target control parameters of the electromagnetic damper based on the vibration reduction matching frequency and vibration reduction control strategy. The control module controls the electromagnetic damper according to the target control parameters.

[0012] In addition, to achieve the above objectives, the present invention also provides an elevator vibration damper, the elevator vibration damping comprising: a memory, a processor, and an elevator vibration damping control program stored in the memory and executable on the processor, the elevator vibration damping control program being configured to implement the steps of the elevator vibration damping control method described in any one of the above.

[0013] In addition, to achieve the above objectives, the present invention also provides a storage medium storing an elevator vibration reduction control program, which, when executed by a processor, implements the steps of the elevator vibration reduction control method as described in any one of claims 1 to 7.

[0014] This invention proposes an elevator vibration reduction control method. This method obtains the vibration excitation frequency of the target elevator under a predetermined operating condition and establishes a correlation between the operating condition and the excitation frequency. Based on the real-time excitation frequency and the correlation between the operating condition and the excitation frequency, a corresponding vibration reduction matching frequency is determined. Based on the vibration reduction matching frequency and the vibration reduction control strategy, target control parameters for the electromagnetic damper are determined. The electromagnetic damper is then controlled according to the target control parameters, thereby effectively reducing vibration and noise. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an elevator vibration damper in the hardware operating environment involved in the embodiments of the present invention; Figure 2 This is a flowchart illustrating the operation of an elevator vibration damper under predetermined working conditions according to an embodiment of the present invention. Figure 3 This is a flowchart illustrating the first embodiment of the elevator vibration reduction control method of the present invention; Figure 4 This is a flowchart illustrating the third embodiment of the elevator vibration reduction control method of the present invention; The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0016] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0017] Reference Figure 1 , Figure 1 This is a schematic diagram of the electrical structure of an elevator vibration damper in the hardware operating environment of an embodiment of the present invention.

[0018] like Figure 1 As shown, the elevator vibration damper may include: a sensing unit, a control unit, and an electromagnetic vibration damper. The sensing unit is fitted to the interface between the elevator load-bearing beam and the building, collecting the elevator excitation frequency signal and sending it to the control unit. The control unit contains two algorithm databases, such as excitation frequency-matching frequency and matching frequency-damping current, and an electrical signal control circuit. It sequentially calls the databases to generate current control signals. The electromagnetic damper receives current commands and instantly adjusts the damping force output by changing the input current, achieving active vibration reduction.

[0019] Furthermore, data learning is required before actual vibration reduction is implemented. Specifically, this involves operating the elevator according to predetermined elevator operating conditions, referring to... Figure 1 The sensing device records the peak vibration of the elevator during each operating condition, i.e., the excitation frequency. This excitation frequency is converted and matched with the elevator's predetermined operating condition, and then stored. Simultaneously, the data processing unit initializes, receives the excitation frequency data signal, calculates the vibration damping matching frequency corresponding to the excitation frequency, and determines the complete model.

[0020] After completing the study, refer to Figure 2 , Figure 2 The flowchart shows the operation of the elevator vibration damper under predetermined working conditions. The elevator's real-time operating conditions, direction of travel, and load signals are sent to the data processing unit. The data processing unit retrieves the corresponding vibration damping matching frequency data from the algorithm model. According to the predetermined relationship between the elevator's operating conditions and the matching frequency, it sends digital commands to the vibration damping device control unit. The vibration damping control unit converts the digital commands into electromagnetic vibration damper current control signals, and the electromagnetic vibration damper operates to achieve the vibration damping purpose.

[0021] Of course, optionally, when the elevator is operating between predetermined conditions, the data processing logic executes control commands according to the relatively unfavorable condition: for example, if the load is 45% and the elevator is going downward, the default is to override downward and control is executed according to the 25% load condition; if the load is 85% and the elevator is going upward, the default is to override upward and control is executed according to the 100% load condition.

[0022] This invention provides an elevator vibration reduction control method, applied to an elevator vibration reduction and noise reduction system. The elevator vibration reduction and noise reduction system includes: an elevator, a self-sensing control unit and device, and an electromagnetic damper. The control unit is fitted onto a component where the elevator meets the building wall, such as the interface between the elevator load-bearing beam and the building, and is used to collect the elevator's operating excitation frequency and output a control signal. The electromagnetic damper is located on the elevator load-bearing beam or at the interface with the building; its damping force is highly positively correlated with the input current, as shown in the reference... Figure 3 , Figure 3 This is a flowchart illustrating the first embodiment of an elevator vibration reduction control method according to the present invention.

[0023] In this embodiment, the elevator vibration reduction control method includes: Step S1: Obtain the vibration excitation frequency of the target elevator under the predetermined operating conditions and establish the correlation between the operating conditions and the excitation frequency. In this embodiment, the process of acquiring excitation frequency data is as follows: the target elevator is controlled to operate under each operating condition, and the vibration signal of the elevator's load-bearing beam is collected by the sensor device of the control unit under each operating condition. The excitation frequency corresponding to each operating condition is extracted through spectrum analysis. It should be clarified that the excitation frequency corresponds to the maximum vibration applied to the vibration damping device by the elevator's own natural frequency. The operating conditions include at least one of unloaded upward movement, unloaded downward movement, half-loaded upward movement, half-loaded downward movement, fully loaded upward movement, fully loaded downward movement, overloaded upward movement, and overloaded downward movement. A one-to-one correspondence is established between the excitation frequency data collected under each operating condition and that operating condition, forming a correlation between operating condition and excitation frequency. It should be explained that the excitation frequency is the vibration on the vibration damping device generated by the elevator operating at its natural frequency under different operating conditions.

[0024] Step S2: Determine the corresponding vibration reduction matching frequency based on the correlation between the real-time excitation frequency and the operating condition-excitation frequency; In this embodiment, optionally, a sensing device linked to the control unit collects vibration signals from the elevator's load-bearing beam in real time. Generally, after signal processing, real-time vibration frequency characteristics can be extracted. It should be explained that the correlation between the real-time excitation frequency and the operating condition-excitation frequency does not directly determine the vibration damping matching frequency. Furthermore, the correlation between the operating condition-excitation frequency and the elevator's real-time operating condition determines the corresponding verification frequency. The real-time vibration frequency and the verification frequency are then verified a second time to obtain the verification result. Based on the verification result, it is determined whether to use the real-time vibration frequency data to calculate the vibration damping matching frequency or to use the verification frequency. This is because the load on the elevator during actual operation is not precisely at the full load, half load, or other weight values. After comparison and verification, combined with minor deviation corrections from the real-time vibration data, the real-time excitation frequency is determined.

[0025] Alternatively, the specific steps described above only reflect the control logic under sufficient conditions.

[0026] In some cases, there may be no direct detection of the real-time excitation frequency. In such situations, by interacting with the elevator control system, the real-time operating conditions of the elevator can be obtained. Based on the correlation between the real-time operating conditions and the excitation frequency, the corresponding mapped frequency value is obtained as the real-time excitation frequency for calculating the vibration damping matching frequency.

[0027] In some cases, there may be no way to interact with the elevator control system. In such situations, it is necessary to calculate the vibration damping matching frequency from the directly detected real-time excitation frequency. Essentially, being able to directly detect the real-time excitation frequency and simultaneously obtain the real-time operating conditions of the elevator control system is a form of redundant design.

[0028] Furthermore, a vibration reduction algorithm is established using a programming language such as Python. The excitation frequency acting on the vibration reduction device is derived from the vibration frequency of the elevator under the sampling conditions, including the following calculation formula:

[0029] in, K For system stiffness; m The equivalent mass of the system can be determined based on the elevator load.

[0030] Step S3: Determine the target control parameters of the electromagnetic damper based on the vibration reduction matching frequency and vibration reduction control strategy; Optionally, the vibration reduction strategy algorithm stored in the control unit includes the correspondence between the vibration reduction matching frequency and the target control parameters. Specifically, the target control parameters generally include the damping force corresponding to the electromagnetic damper, which is typically adjusted by changing the current. Therefore, optionally, the target control parameters, the vibration reduction strategy algorithm, can include a one-to-one correspondence between the vibration reduction matching frequency and the input current of the electromagnetic damper. The vibration reduction strategy algorithm is invoked based on the real-time excitation frequency to determine the corresponding vibration reduction matching frequency and target control current, which are then used as the target control parameters.

[0031] Step S4: Control the electromagnetic damper according to the target control parameters.

[0032] Based on the target control parameters, a corresponding digital-to-analog conversion control signal is generated, and a current control command is output to the electromagnetic damper through the digital-to-analog conversion interface set in the system. The electromagnetic damper receives the adjusted input current and instantaneously changes the damping force to achieve vibration reduction and noise reduction of the target elevator under the current operating conditions.

[0033] In this embodiment, the present invention proposes an elevator vibration reduction control method. This method obtains the vibration excitation frequency of the target elevator under a predetermined operating condition and establishes a correlation between the operating condition and the excitation frequency. Based on the real-time excitation frequency and the correlation between the operating condition and the excitation frequency, a corresponding vibration reduction matching frequency is determined. Based on the vibration reduction matching frequency and the vibration reduction control strategy, target control parameters for the electromagnetic damper are determined. The electromagnetic damper is then controlled according to the target control parameters, thereby effectively reducing vibration and noise.

[0034] Furthermore, based on the first embodiment, a second embodiment of the elevator vibration reduction control method of the present invention is proposed. In this embodiment, the step of determining the corresponding vibration reduction matching frequency according to the correlation between the real-time excitation frequency and the operating condition-excitation frequency includes: The vibration reduction matching frequency is calculated based on the real-time excitation frequency and the preset vibration physics formula. The preset vibration physical formula is as follows: λ=f n / f, f n For real-time excitation frequency, f To match the vibration reduction frequency, λ The frequency ratio is a predetermined set value. λ is greater than .

[0035] In this embodiment, the preset vibration physics formula is a frequency matching formula established based on the vibration reduction principle. When the elevator generates a characteristic excitation frequency under a certain operating condition, the system calculates the vibration reduction matching frequency corresponding to that excitation frequency, so that the frequency of the reverse damping force generated by the electromagnetic damper cancels out the excitation frequency, achieving a vibration reduction effect. The preset vibration physics formula is: λ=f n / f ,in f n For real-time excitation frequency, f The natural frequency of the vibration damping device, λ The frequency ratio is preset to a certain value. Engineering experience shows that when the frequency ratio... λ Greater than At that time, the vibration reduction effect was obvious.

[0036] Furthermore, this embodiment also includes a vibration reduction effect evaluation process. The transmissibility T represents the ratio of the output vibration acceleration of the vibration reduction device to the input vibration acceleration. When the vibration reduction efficiency... η When it reaches at least 85%, that is T The smaller the value, the better the vibration reduction effect. Vibration reduction efficiency η The calculation formula is: η= (1- T() × 100%. Based on the above calculations, the vibration reduction matching frequency of the predetermined elevator is obtained, and a vibration reduction strategy is formed. When the predetermined elevator is equipped with this system, through self-learning and vibration reduction strategy establishment, the system actively performs data processing and sends current input control commands to the electromagnetic damper. The electromagnetic damper automatically adjusts the damping force to achieve the purpose of vibration reduction and noise reduction.

[0037] Furthermore, based on the first or second embodiment, a third embodiment of the elevator vibration reduction control method of the present invention is proposed. In this embodiment, reference is made to... Figure 4 The vibration reduction control strategy includes: a damping force-current characteristic curve; the step of determining the target control parameters of the electromagnetic damper based on the vibration reduction matching frequency and the vibration reduction control strategy includes: Step S31: Obtain the damping force-current characteristic curve of the electromagnetic damper; In this embodiment, the damping force-current characteristic curve is an inherent performance parameter of the electromagnetic damper, characterizing the strong positive correlation between the input current and the output damping force. This curve is obtained through calibration experiments during the system installation phase and stored in the control unit.

[0038] Step S32: Determine the target damping force based on the vibration reduction matching frequency; In this embodiment, the target damping force that the electromagnetic damper needs to output is determined based on the vibration reduction requirements corresponding to the vibration reduction matching frequency. The magnitude of the target damping force should be sufficient to effectively offset the frequency of the reverse damping force generated by the electromagnetic damper from the elevator excitation frequency, thereby achieving the expected vibration reduction effect.

[0039] Step S33: Determine the target control current based on the target damping force and the damping force-current characteristic curve.

[0040] In this embodiment, the target control current is obtained by finding the current value corresponding to the target damping force on the damping force-current characteristic curve. Since the damping force of the electromagnetic damper is highly positively correlated with the input current, the magnitude of the damping force can be precisely adjusted by controlling the current. By determining the target damping force through the vibration matching frequency and the damping force-current characteristic curve, the magnitude of the damping force can be effectively and accurately adjusted.

[0041] Furthermore, based on any of the above embodiments, a fourth embodiment of the elevator vibration reduction control method of the present invention is proposed. In this embodiment, before the step of determining the corresponding vibration reduction matching frequency according to the correlation between the real-time excitation frequency and the operating condition-excitation frequency, the method further includes: Obtain the real-time excitation frequency of the vibration damper caused by the real-time operating conditions of the target elevator.

[0042] In this embodiment, there are two preferred methods for obtaining the real-time excitation frequency. The first method involves interacting with the elevator control system to receive real-time elevator operating data, including the direction of travel and load signals. Based on the operating data and the correlation between the operating data and the excitation frequency, the real-time operating condition of the target elevator is determined, and the corresponding mapped frequency value is obtained as the real-time excitation frequency. This method utilizes existing devices such as load sensors within the elevator system, enabling direct and accurate knowledge of the current operating condition.

[0043] The second approach involves the control unit collecting real-time vibration signals from the elevator's load-bearing beam via sensors when interaction with the elevator control system is impossible. After signal processing, the real-time vibration frequency characteristics are extracted and used as the real-time excitation frequency. This approach serves as a stand-alone backup plan, relying on the system's own sensors to identify operating conditions.

[0044] In practice, both methods can directly detect the real-time excitation frequency and obtain the real-time operating conditions of the elevator control system, forming a redundant design and improving system reliability. When both conditions are met, the operating condition data provided by the elevator control system is used as the benchmark, and the real-time vibration frequency detected by the sensor is used for verification. After mutual verification, the current excitation frequency is determined.

[0045] Furthermore, the step of obtaining the real-time excitation frequency of the vibration damper caused by the real-time operating conditions of the target elevator includes: Receive real-time elevator operating data, including: running direction and load signal; The real-time operating conditions of the target elevator are determined based on the correlation between the operating data and the operating conditions-excitation frequency.

[0046] In this embodiment, since it is difficult for the elevator load to accurately reach the precise weight values ​​of 25%, 50%, or full load during actual operation, the system identifies the closest previously learned operating condition, such as unloaded upward movement or fully loaded downward movement. Using the reference excitation frequency corresponding to this condition as a benchmark, and combining it with the frequency offset actually measured in real-time vibration data, the system performs fine-tuning to obtain the current excitation frequency. The corrected current excitation frequency more accurately reflects the actual vibration state of the elevator at the current moment.

[0047] Furthermore, based on any of the above embodiments, a fifth embodiment of the elevator vibration reduction control method of the present invention is proposed. In this embodiment, the step of obtaining the vibration excitation frequency under the predetermined operating conditions of the target elevator and establishing the correlation between the operating conditions and the excitation frequency includes: The target elevator is controlled to operate under each of the predetermined operating conditions, and vibration excitation frequency data under each of the predetermined operating conditions is collected; Establish a correspondence between operating conditions and excitation frequencies based on each operating condition and the corresponding vibration excitation frequency data to obtain multiple correspondences between operating conditions and excitation frequencies; The association relationship is generated based on all the described operating conditions and excitation frequency correspondences.

[0048] In this embodiment, the data self-learning process is as follows: the elevator is operated according to predetermined operating conditions, and the sensor device of the control unit records the peak vibration of the elevator during each operating condition, i.e., the excitation frequency. It should be clarified that the frequency corresponding to the maximum vibration caused by the elevator's natural frequency applied to the vibration damping device is the excitation frequency. The operating conditions include at least one of the following: unloaded upward movement, unloaded downward movement, half-loaded upward movement, half-loaded downward movement, fully loaded upward movement, fully loaded downward movement, overloaded upward movement, and overloaded downward movement. The overload includes two overload test conditions: 110% rated load and 125% rated load. Each operating condition covers the main load and direction combinations in the elevator's daily operation, ensuring that the excitation correlation of the operating conditions can comprehensively reflect the actual vibration characteristics of the elevator. Vibration frequency data under special operating conditions such as starting and braking, and emergency braking are also recorded. A one-to-one correspondence is established between the excitation frequency data collected under each operating condition and that condition. Each operating condition corresponds to a reference excitation frequency, and multiple operating conditions form multiple correspondences. In this embodiment, all operating conditions and excitation frequencies are summarized to form a complete correlation, which is stored in the control unit as the data foundation for the vibration reduction strategy algorithm. During subsequent vibration reduction operation, the data processing unit can quickly match the vibration reduction parameters corresponding to the current operating condition based on this correlation.

[0049] Furthermore, the step of controlling the electromagnetic damper according to the target control parameters includes: Generate the corresponding digital-to-analog conversion control signal based on the target control parameters; The input current of the electromagnetic damper is adjusted according to the digital-to-analog conversion control signal; The damping force of the electromagnetic damper is changed according to the adjusted input current in order to perform vibration reduction control on the target elevator.

[0050] In this embodiment, the electromagnetic damper receives the adjusted input current and instantaneously changes the damping force to reduce vibration and noise of the target elevator under the current operating conditions. Optionally, when the elevator's operating conditions are between predetermined conditions, the data processing logic executes control commands according to the relatively unfavorable condition: for example, if the load is 45% downward, it defaults to downward overriding and executes control according to 25% load; if the load is 85% upward, it defaults to upward overriding and executes control according to 100% load.

[0051] Furthermore, this invention also proposes an elevator vibration reduction system, which includes: The acquisition module is used to acquire the vibration excitation frequency of the target elevator under the predetermined operating conditions and establish the correlation between the operating conditions and the excitation frequency. The matching module is used to determine the corresponding vibration reduction matching frequency based on the correlation between the real-time excitation frequency and the operating condition-excitation frequency; The analysis module is used to determine the target control parameters of the electromagnetic damper based on the vibration reduction matching frequency and vibration reduction control strategy. The control module controls the electromagnetic damper according to the target control parameters.

[0052] Furthermore, this invention also proposes an elevator vibration damper, which includes: a memory, a processor, and an elevator vibration damping control program stored in the memory and executable on the processor. The elevator vibration damping control program is configured to implement the steps of the elevator vibration damping control method described above.

[0053] Furthermore, embodiments of the present invention also propose a storage medium storing an elevator vibration reduction control program, wherein the elevator vibration reduction control program, when executed by a processor, implements the steps of the elevator vibration reduction control method described above.

[0054] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0055] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0056] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0057] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for controlling elevator vibration reduction, characterized in that, The elevator vibration reduction control method includes the following steps: Obtain the vibration excitation frequency of the target elevator under the predetermined operating conditions, and establish the correlation between the operating conditions and the excitation frequency; The corresponding vibration reduction matching frequency is determined based on the correlation between the real-time excitation frequency and the operating condition-excitation frequency. The target control parameters of the electromagnetic damper are determined based on the vibration reduction matching frequency and vibration reduction control strategy. The electromagnetic damper is controlled according to the target control parameters.

2. The elevator vibration reduction control method as described in claim 1, characterized in that, The step of determining the corresponding vibration damping matching frequency based on the correlation between the real-time excitation frequency and the operating condition-excitation frequency includes: The vibration reduction matching frequency is calculated based on the real-time excitation frequency and the preset vibration physics formula. The preset vibration physical formula is as follows: λ=f n / f, f n For real-time excitation frequency, f To match the vibration reduction frequency, λ The frequency ratio is a predetermined set value. λ is greater than .

3. The elevator vibration reduction control method as described in claim 1, characterized in that, The vibration reduction control strategy includes: a damping force-current characteristic curve, and the step of determining the target control parameters of the electromagnetic damper based on the vibration reduction matching frequency and the vibration reduction control strategy includes: Obtain the damping force-current characteristic curve of the electromagnetic damper; The target damping force is determined based on the vibration reduction matching frequency; The target control current is determined based on the target damping force and the damping force-current characteristic curve.

4. The elevator vibration reduction control method as described in claim 1, characterized in that, Before the step of determining the corresponding vibration damping matching frequency based on the correlation between the real-time excitation frequency and the operating condition-excitation frequency, the method further includes: Obtain the real-time excitation frequency of the vibration damper caused by the real-time operating conditions of the target elevator.

5. The elevator vibration reduction control method as described in claim 4, characterized in that, The step of obtaining the real-time excitation frequency of the vibration damper caused by the real-time operating conditions of the target elevator includes: Receive real-time elevator operating data, including: running direction and load signal; The real-time operating conditions of the target elevator are determined based on the correlation between the operating data and the operating conditions-excitation frequency.

6. The elevator vibration reduction control method as described in claim 1, characterized in that, The steps of obtaining the vibration excitation frequency of the target elevator under the predetermined operating conditions and establishing the correlation between the operating conditions and the excitation frequency include: The target elevator is controlled to operate under each of the predetermined operating conditions, and vibration excitation frequency data under each of the predetermined operating conditions is collected; Establish a correspondence between operating conditions and excitation frequencies based on each operating condition and the corresponding vibration excitation frequency data to obtain multiple correspondences between operating conditions and excitation frequencies; The association relationship is generated based on all the described operating conditions and excitation frequency correspondences.

7. The elevator vibration reduction control method according to any one of claims 1 to 6, characterized in that, The step of controlling the electromagnetic damper according to the target control parameters includes: Generate the corresponding digital-to-analog conversion control signal based on the target control parameters; The input current of the electromagnetic damper is adjusted according to the digital-to-analog conversion control signal; The damping force of the electromagnetic damper is changed according to the adjusted input current in order to perform vibration reduction control on the target elevator.

8. An elevator vibration reduction system, characterized in that, The elevator vibration reduction system includes: The acquisition module is used to acquire the vibration excitation frequency of the target elevator under the predetermined operating conditions and establish the correlation between the operating conditions and the excitation frequency. The matching module is used to determine the corresponding vibration reduction matching frequency based on the correlation between the real-time excitation frequency and the operating condition-excitation frequency; The analysis module is used to determine the target control parameters of the electromagnetic damper based on the vibration reduction matching frequency and vibration reduction control strategy. The control module controls the electromagnetic damper according to the target control parameters.

9. An elevator vibration damper, characterized in that, The elevator vibration reduction includes: a memory, a processor, and an elevator vibration reduction control program stored in the memory and executable on the processor, the elevator vibration reduction control program being configured to implement the steps of the elevator vibration reduction control method as described in any one of claims 1 to 7.

10. A storage medium, characterized in that, The storage medium stores an elevator vibration reduction control program, which, when executed by a processor, implements the steps of the elevator vibration reduction control method as described in any one of claims 1 to 7.

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