Elevator vibration measurement system and method

Abstract

The embodiment of the present application discloses an elevator vibration measurement system and method, a mobile terminal and a server, wherein the mobile terminal is arranged in the inner bottom plate of the elevator car and is used for communicating with the elevator main control board, so that the elevator main control board controls the operation of the elevator car according to the control instruction sent by the mobile terminal to realize vibration measurement; the mobile terminal collects the acceleration vibration data of the elevator car in the operation process based on the acceleration sensor of the mobile terminal, and collects the basic information of the elevator based on the elevator main control board; the mobile terminal also communicates with the server, and is used for sending the acceleration vibration data and the basic information to the server, so that the server evaluates the performance of the elevator based on the acceleration vibration data and the basic information. The embodiment of the present application can realize the automation operation of the elevator vibration measurement, greatly facilitates the use of the field engineering personnel, and greatly improves the work efficiency of the engineering.

Description

Technical Field

[0001] This invention relates to the field of elevator vibration measurement technology, specifically to an elevator vibration measurement system and method. Background Technology

[0002] After elevator installation and during use, vibration measurements are required to determine the cause of vibrations, identify relevant factors affecting elevator operation, and replace elevator components or modify configuration parameters to ensure comfortable operation. Currently, engineers carry bulky elevator vibration measuring instruments to the site, manually controlling both elevator operation and the instrument. After measurement, the data is imported into a computer for analysis using a card reader. Furthermore, existing elevator vibration measuring instruments suffer from drawbacks such as high cost, inconvenience, limited functionality, cumbersome operation, and insufficient intelligence, causing significant inconvenience to on-site engineers and severely impacting their work efficiency.

[0003] Currently, there are vibration measurement tools available for mobile terminals, but a common problem with these tools is that they are not fully automated during the vibration measurement process. They require human assistance to control the elevator operation and operate the mobile terminal, which seriously affects the accuracy of the measurement data. In addition, the accuracy of the measured data is not high enough, which causes some trouble for elevator engineers, causes many inconveniences in their work, affects the efficiency of engineers, and reduces the passenger's elevator experience. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide an elevator vibration measurement system and method, which can realize the automated operation of elevator vibration measurement, greatly facilitate the use of on-site engineering personnel, and significantly improve the work efficiency of the project.

[0005] To address the aforementioned problems, a first aspect of this invention discloses an elevator vibration measurement system, comprising a mobile terminal and a server. The mobile terminal is placed within the inner floor of the elevator car and communicates with the elevator main control board. This allows the main control board to control the elevator car's operation based on control commands issued by the mobile terminal, thereby achieving vibration measurement. The mobile terminal collects acceleration vibration data of the elevator car during operation using its own accelerometer and collects basic information about the elevator from the main control board. The mobile terminal also communicates with the server to send the acceleration vibration data and the basic information to the server, enabling the server to evaluate the elevator's performance based on the acceleration vibration data and the basic information.

[0006] In a preferred embodiment, in a first aspect of the present invention, the elevator main control board controls the operation of the elevator car according to control commands issued by the mobile terminal, including:

[0007] The mobile terminal sends control commands to the elevator main control board, the control commands including the number of elevator runs;

[0008] The elevator main control board receives the control command, closes the elevator car door and hall door, and controls the elevator car to move up and down between the bottom floor and the top floor according to the number of running rounds;

[0009] When the elevator has completed the required number of runs, the elevator main control board sends a stop command to the mobile terminal so that the mobile terminal stops collecting acceleration vibration data.

[0010] In a preferred embodiment, in the first aspect of the present invention, the mobile terminal collects basic information about the elevator based on the elevator main control board, including:

[0011] During vibration measurement, the elevator main control board sends the elevator identification information, elevator mechanical status information, elevator electrical status, and elevator fault information to the mobile terminal.

[0012] As a preferred implementation, in a first aspect of the present invention, the server evaluates the performance of the elevator based on the acceleration vibration data and the basic information, including:

[0013] The server calculates the vibration index data of the elevator for each round and each stage based on the acceleration vibration data;

[0014] The server obtains the standard data corresponding to the elevator based on the elevator's identity information, and compares the vibration index data with the standard data. When the vibration index data meets the standard data, the elevator's performance meets the requirements; otherwise, the elevator's performance does not meet the requirements.

[0015] As a preferred implementation, in the first aspect of the present invention, when the performance of the elevator does not meet the requirements, the server analyzes the vibration measurement of the elevator based on the elevator's mechanical status information, electrical status information, and fault information, and sends the analysis results to the mobile terminal.

[0016] In a preferred embodiment, in the first aspect of the present invention, the server analyzes the vibration measurement of the elevator based on elevator fault information, including:

[0017] The server queries the type and principle of the fault based on the elevator fault information, and determines whether the fault information affects the current elevator vibration. If so, it extracts the corresponding fault resolution measures and guidance, and sends the fault resolution measures and guidance to the mobile terminal. Otherwise, it analyzes the vibration measurement of the elevator based on the elevator mechanical status information or elevator electrical status.

[0018] In a preferred embodiment, in the first aspect of the present invention, the server analyzes the vibration measurement of the elevator based on the elevator's mechanical state information, including:

[0019] The server analyzes the elevator's mechanical status information to determine whether the vibration is caused by the traction machine, car traction system, or guide rails. If so, it extracts the corresponding troubleshooting measures and instructions, and sends the troubleshooting measures and instructions to the mobile terminal.

[0020] or / and,

[0021] The server analyzes the vibration measurements of the elevator based on the elevator's electrical status, including:

[0022] Based on the elevator's electrical status, the server analyzes whether the encoder and motor connection is faulty, or whether the vibration is caused by low-speed pulsation of the motor due to harmonic torque. If so, it extracts the corresponding troubleshooting measures and instructions, and sends the troubleshooting measures and instructions to the mobile terminal.

[0023] In a preferred embodiment, in the first aspect of the present invention, after the mobile terminal receives the analysis result, it further includes:

[0024] Based on the analysis results, the acceleration vibration data, and the basic information, a physical examination report of the vibration measurement is generated.

[0025] As a preferred embodiment, in the first aspect of the present invention, before performing the vibration measurement, the method further includes:

[0026] Zero drift processing is performed on the accelerometer of the mobile terminal.

[0027] A second aspect of this invention discloses a method for measuring elevator vibration, comprising:

[0028] A mobile terminal placed on the floor inside the elevator car communicates with the elevator main control board, and the mobile terminal sends control commands to the elevator main control board.

[0029] The elevator main control board controls the operation of the elevator car according to the control commands to achieve vibration measurement;

[0030] During the vibration measurement process, the mobile terminal collects acceleration vibration data of the elevator car during operation based on its own acceleration sensor, and collects basic information of the elevator based on the elevator main control board;

[0031] The mobile terminal communicates with the server, and the mobile terminal sends the acceleration vibration data and the basic information to the server.

[0032] The server evaluates the performance of the elevator based on the acceleration vibration data and the basic information.

[0033] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows:

[0034] This invention utilizes the mobile terminal's own acceleration sensor, combined with the elevator car's in-car debugging system to control elevator operation, thereby automating elevator vibration measurement. This eliminates the influence of human factors, ensures the accuracy of measurement results, greatly facilitates on-site engineering personnel, and significantly improves engineering work efficiency. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of an elevator vibration measurement system provided in an embodiment of the present invention;

[0036] Figure 2 This is a flowchart illustrating an elevator vibration measurement method disclosed in an embodiment of the present invention. Detailed Implementation

[0037] This specific embodiment is merely an explanation of the embodiments of the present invention and is not intended to limit the embodiments of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the embodiments of the present invention, they are protected by patent law.

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the embodiments of the present invention.

[0039] The term "comprising" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0040] In embodiments of the present invention, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in embodiments of the present invention should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0041] This invention aims to automatically measure elevator vibration by utilizing the mobile terminal's built-in accelerometer sensor in conjunction with the elevator car's in-car debugging system. After vibration measurement, data indicators are calculated directly on the mobile terminal, and the results are sent to the server via the network. The server then retrieves the specific causes and solutions affecting elevator vibration and generates a final analysis and measurement report. This allows for rapid analysis of the causes of elevator vibration and provides corresponding solutions and operational guidelines. It helps on-site engineers accurately pinpoint the cause of elevator vibration and, based on the guidelines, replace elevator components or modify the configuration parameters of relevant components to resolve the vibration issue. This automated elevator vibration measurement eliminates the influence of human factors, ensuring accurate measurement results while greatly facilitating on-site engineering personnel and significantly improving project efficiency. A detailed description is provided below with reference to the accompanying drawings.

[0042] Example 1

[0043] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of an elevator vibration measurement system disclosed in one embodiment of the present invention. Figure 1 As shown, the elevator vibration measurement system includes: a mobile terminal 110 and a server 120.

[0044] The mobile terminal can be a mobile phone, tablet computer, or a dedicated measurement terminal. This mobile terminal has a built-in accelerometer and a corresponding communication network, enabling communication with the elevator main control board 130 and the server. By placing the mobile terminal inside the elevator car and using the accelerometer to acquire the elevator's acceleration vibration data, the elevator vibration measurement process is completed.

[0045] The server can be a cloud server or a physical server, such as a blade server. Of course, in other embodiments, if the computing power is sufficient, a desktop computer or a laptop computer can also be used as the server.

[0046] Since the vibration measurement of the elevator is carried out in multiple rounds, the elevator can be called to the basic position before the vibration measurement, such as the bottom floor or the top floor. At the same time, a wireless communication module, such as a Bluetooth module, is configured for the debugging wiring in the car. This module can communicate with the wireless communication module of the mobile terminal, thereby enabling normal communication between the mobile terminal and the elevator main control board.

[0047] Of course, in other embodiments, if the elevator main control board has a built-in wireless communication module, it is only necessary to open the corresponding application, mini-program, or web page on the mobile terminal to check whether it can communicate normally with the elevator main control board. For example, a certain command can be sent to the elevator main control board through the corresponding interactive platform of the mobile terminal. If the elevator main control board can return data related to the command, it indicates that the connection between the two is normal.

[0048] Next, select the delay time and sampling frequency on the interactive platform. The delay time is mainly used after the operator has completed their preparations and exited the elevator car before sending control commands to the elevator main control board. This avoids errors in the measurement results caused by the accelerometer starting to work during this time. The sampling frequency can be selected according to the actual situation, such as 2ms, 4ms, 5ms, or 10ms. After the preparations are complete, finally place the mobile terminal on the floor inside the elevator car.

[0049] Normally, the value of gravitational acceleration is taken as 9.80 m / s². 2 However, due to the combined effects of complex environmental factors and various conditions, the value of gravitational acceleration is often not precisely 9.8 m / s². 2 To improve the accuracy of vibration measurement data, the accelerometer needs to be zero-drift processed before measurement begins.

[0050] Before performing zero drift calibration, a preset zero drift correction delay time is set, such as a 5-second countdown. Calibration is only performed after the countdown is complete. During calibration, the acceleration of the mobile terminal's accelerometer in the X, Y, and Z directions is continuously read 10 times at preset intervals, such as 1 time / second. The average value is then taken as the zero drift value of the vibration measurement acceleration.

[0051] After the zero-drift treatment is completed, the elevator vibration measurement is started. The interactive platform sends a control command to the elevator main control board to start the vibration measurement via the wireless communication module.

[0052] After receiving the control command to start vibration measurement, the elevator closes the elevator car door and hall door. The elevator then runs up and down between the bottom floor and the top floor without responding to any internal or external call commands, ensuring that the elevator car door and hall door remain closed until the automated vibration measurement operation is completed.

[0053] For example, the control command could control the number of trips the elevator car makes, such as five trips. These five trips consist of five consecutive alternating upward and five downward trips. For instance, each trip starts from the bottom floor, goes up to the top floor, and then goes down back to the bottom floor, forming a complete trip. Throughout the entire vibration measurement process, no engineering personnel are required to participate in any operation or assistance, ensuring full automation of the measurement and thus improving the accuracy and precision of the measurement data.

[0054] During elevator vibration measurement, the interactive platform collects data from the accelerometer in the X, Y, and Z directions in real time and stores the collected data in the form of files or databases on the mobile terminal.

[0055] To facilitate analysis and problem localization, the collected data is stored separately for each elevator cycle and for both upward and downward travel. The time-acceleration vibration curves of the raw data from the accelerometer in the X, Y, and Z directions are then plotted in real-time on the corresponding interface of the interactive platform for each stage of elevator operation. Each stage includes three types of data: data from each cycle (collection time and acceleration value), data from each upward travel, and data from each downward travel.

[0056] Determining the elevator's operation status for each cycle and its up / down movement can be achieved by tracking the elevator's operating status in real time. This involves the elevator's main control board sending the elevator's operating status information to a mobile terminal. The mobile terminal then uses this information to determine the current number of cycles the elevator has completed and its up / down movement status, facilitating the separate storage and processing of the collected acceleration and vibration data.

[0057] In addition to the elevator's operational status information mentioned above, during elevator vibration measurement, the interactive platform receives basic elevator information sent by the elevator main control board via Bluetooth module. This information may include elevator identification information, mechanical status information, electrical status information, and fault information. Mechanical and electrical status information can be sent multiple times as needed, while elevator identification information only needs to be sent once. Fault information is only resent when the fault status changes; otherwise, it is sent only once. If no fault information is available, a "no fault" flag can also be sent to the mobile terminal.

[0058] When the elevator reaches the preset number of operation cycles, the elevator main control system sends a termination command to the interactive platform, at which point the elevator car returns to its basic position. Upon receiving the termination command, the interactive platform stops collecting data from the accelerometer in the X, Y, and Z directions, and simultaneously stops collecting elevator mechanical status information, electrical status information, and fault information.

[0059] The mobile terminal transmits the acceleration vibration data and basic elevator information collected during this vibration measurement to the server for storage and analysis via wireless networks such as mobile communication networks, giving full play to the advantages of big data and enabling rapid data extraction and calculation.

[0060] The server can calculate vibration index data for the elevator at various stages, including up and down movement, maximum acceleration, maximum deceleration, A95 acceleration, A95 deceleration, ISO PK / PK, ISOA95, ISO 0 / PK, and ISO variable acceleration segment vibration, based on the received raw acceleration vibration data. Then, using the elevator's identification information, it obtains the standard data corresponding to this type of elevator and compares the vibration index data with the standard data. If the vibration index data meets the standard data, the elevator's performance meets the requirements; otherwise, the elevator's performance does not meet the requirements.

[0061] The standard data can be the national standard for this type of elevator, or the enterprise standard for this type of elevator. Alternatively, the vibration index data can be compared with both of these standard data. Only when both of these standard data are met can it be said that the current elevator can meet the normal use standard and meet the requirements for elevator comfort.

[0062] If any indicators do not meet the requirements of state-owned enterprise standards, they are considered abnormal indicators and require close attention and analysis. The specific analysis is also carried out on the server side, mainly based on the elevator's basic information and acceleration and vibration data.

[0063] Specifically, it includes:

[0064] 1. Based on the elevator's identification information, query the usage information of its components to determine if the current component wear rate exceeds the standard and whether there is hardware aging. Component aging will affect the normal operation of the elevator, impact the comfort of the ride, and may even pose safety hazards. If so, add the information on the components exceeding the standard, the applicable component models, and replacement guidelines to the returned data. Otherwise, proceed to the next step of analysis.

[0065] 2. Based on the elevator malfunction information, query the malfunction type and principle to determine whether the malfunction affects the current elevator vibration. If so, extract the corresponding troubleshooting measures and guidelines and add them to the returned data. If not, ignore them and proceed to the next step of analysis.

[0066] 3. Elevator vibration is caused by a variety of factors, primarily mechanical and electrical control issues. Based on the elevator's mechanical status information, analyze whether the vibration is caused by the traction machine. Key indicators include analyzing whether there is excessive mechanical clearance in the traction sheave and whether the error in the elevator's running position caused by the traction sheave's machining and installation precision is within a reasonable range. If these conditions exist, extract the mechanical clearance range of the traction sheave for the current elevator type, the reasonable range of errors in the elevator's running position caused by the traction sheave's machining and installation precision, and relevant operating instructions, based on the elevator's identification information, and add this data to the returned data. If the above analysis is satisfactory, ignore it and proceed to the next step of analysis.

[0067] 4. Based on the elevator's mechanical status information, analyze whether the vibration is caused by the car traction system. The main indicators are to determine whether there is uneven wire rope tension or installation twisting. If this is the case, extract the wire rope tension data and data configuration guidelines for the current elevator type based on the current elevator identification information, extract the cause analysis of wire rope installation twisting and the correct operation guidelines for wire rope installation, and add them to the returned data. If this situation does not exist, ignore it and proceed to the next step of analysis.

[0068] 5. Based on the elevator's mechanical status information, analyze whether the vibration is caused by the guide rails. Key indicators include whether the guide rails are poorly installed, whether the track gauge deviation exceeds standards, whether the interfaces are uneven, and whether twisting or deformation is causing the elevator vibration. If any of these issues exist, extract the correct installation guidelines, precautions, and data configuration operation plan for the current elevator type based on the elevator's identification information and add them to the returned data. If no such issues exist, ignore them and proceed to the next step of analysis.

[0069] 6. In closed-loop elevator speed measurement systems, optical encoders are generally used as speed feedback signals. Abnormal speed feedback signals are a significant cause of system oscillation and mechanical resonance. Based on the current elevator electrical status information, analyze whether there are any issues with the encoder-motor connection, damage from external impacts, improper wiring causing signal interference, or dust obstructing the encoder disc and causing interference. If any of these issues exist, extract the corresponding solutions and operating instructions based on the elevator's identification information and add them to the returned data. If none of these issues exist, ignore them and proceed to the next step of analysis.

[0070] 7. Analyze whether the low-speed pulsation of the motor caused by harmonic torque is causing vertical vibration of the car. Based on the elevator's electrical status information, determine whether there is an excessively high regulator P value, an excessively low I value, or a three-phase voltage imbalance. If such a situation exists, extract the regulator P value, I value, and three-phase voltage data, along with the data configuration method and operation instructions, from the current elevator's identity information and add them to the returned data. At this point, the background analysis of the current elevator vibration measurement is complete.

[0071] After completing the elevator vibration measurement and analysis, the server returns the analysis results and solutions to the interactive platform on the mobile terminal. Upon receiving the data from the server, the interactive platform combines it with locally collected data to generate a report on the elevator vibration measurement.

[0072] The medical examination report describes the relationship between elevator operating speed and time, low-pass filtering, elevator operating distance and time, FFT and acquisition frequency, and low-pass filtering.

[0073] In addition to plotting the vibration curves between each component in the medical examination report, each section also includes the actual data for each component, the reference data range, abnormal data, solutions, operating instructions, conclusions regarding the component relationships, and the overall conclusions of the measurement. This allows engineers to accurately pinpoint the elevator vibration problem and clearly define how to resolve it, enabling rapid handling of elevator vibration situations.

[0074] Based on the solutions and vibration curves provided by the mobile terminal, engineers identified the problems and solutions, then replaced the elevator components affecting the vibration or modified the parameter values ​​of the relevant components. After the process was completed, the engineers used the same method to verify the current elevator vibration measurement again until the elevator vibration inspection report showed an excellent condition.

[0075] After the elevator vibration measurement is completed, the mobile terminal can also upload the logs collected from this vibration measurement to the server, providing a data reference and foundation for future vibration measurements of other elevators.

[0076] During vibration measurement and analysis, if the data collected and transmitted back to the backend by the mobile terminal is insufficient to meet the backend's analysis requirements, and additional elevator status information needs to be collected, the server will provide feedback to the mobile terminal regarding the additional data required. Based on the server's requirements, the mobile terminal will re-perform the elevator vibration measurement, collecting the elevator status information requested by the server in real time during the measurement process. After the measurement is completed, the mobile terminal will again transmit the collected status and measurement information back to the backend for analysis. This process continues until the backend completes its analysis of the current elevator vibration measurement, achieving fully automated elevator vibration measurement and analysis.

[0077] Example 2

[0078] Please refer to Figure 2 As shown, an elevator vibration measurement method may include the following steps:

[0079] S210. A mobile terminal placed on the floor inside the elevator car communicates with the elevator main control board, and the mobile terminal sends control commands to the elevator main control board.

[0080] Before starting vibration measurement, the accelerometer of the mobile terminal can also be zero-drift processed.

[0081] S220. The elevator main control board controls the operation of the elevator car according to the control command to realize vibration measurement.

[0082] The mobile terminal sends control commands to the elevator main control board, the control commands including the number of elevator runs;

[0083] The elevator main control board receives the control command, closes the elevator car door and hall door, and controls the elevator car to move up and down between the bottom floor and the top floor according to the number of running rounds;

[0084] When the elevator has completed the required number of runs, the elevator main control board sends a stop command to the mobile terminal so that the mobile terminal stops collecting acceleration vibration data.

[0085] S230. During the vibration measurement process, the mobile terminal collects acceleration vibration data of the elevator car during operation based on its own acceleration sensor, and collects basic information of the elevator based on the elevator main control board.

[0086] Basic information includes elevator identification information, elevator mechanical status information, elevator electrical status, and elevator fault information.

[0087] S240, The mobile terminal communicates with the server, and the mobile terminal sends the acceleration vibration data and the basic information to the server.

[0088] S250. The server evaluates the performance of the elevator based on the acceleration vibration data and the basic information.

[0089] The server calculates the vibration index data for each stage of each round of the elevator based on the acceleration vibration data. Then, it obtains the standard data corresponding to the elevator based on the elevator's identity information and compares the vibration index data with the standard data. If the vibration index data meets the standard data, the elevator's performance meets the requirements; otherwise, the elevator's performance does not meet the requirements.

[0090] When the performance of the elevator does not meet the requirements, the server analyzes the vibration measurement of the elevator based on the elevator's mechanical status information, electrical status information, and fault information, and sends the analysis results to the mobile terminal.

[0091] Preferably, the server analyzes the vibration measurements of the elevator based on the elevator fault information, including:

[0092] The server queries the type and principle of the fault based on the elevator fault information, and determines whether the fault information affects the current elevator vibration. If so, it extracts the corresponding fault resolution measures and guidance, and sends the fault resolution measures and guidance to the mobile terminal. Otherwise, it analyzes the vibration measurement of the elevator based on the elevator mechanical status information or elevator electrical status.

[0093] Preferably, the server analyzes the vibration measurements of the elevator based on the elevator's mechanical status information, including:

[0094] The server analyzes the elevator's mechanical status information to determine whether the vibration is caused by the traction machine, car traction system, or guide rails. If so, it extracts the corresponding troubleshooting measures and instructions, and sends the troubleshooting measures and instructions to the mobile terminal.

[0095] or / and,

[0096] The server analyzes the vibration measurements of the elevator based on the elevator's electrical status, including:

[0097] Based on the elevator's electrical status, the server analyzes whether the encoder and motor connection is faulty, or whether the vibration is caused by low-speed pulsation of the motor due to harmonic torque. If so, it extracts the corresponding troubleshooting measures and instructions, and sends the troubleshooting measures and instructions to the mobile terminal.

[0098] Preferably, after receiving the analysis result, the mobile terminal further includes:

[0099] Based on the analysis results, the acceleration vibration data, and the basic information, a physical examination report of the vibration measurement is generated.

[0100] The elevator vibration measurement system and method disclosed in this invention have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this invention. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. An elevator vibration measurement system, characterized in that, It includes a mobile terminal and a server. The mobile terminal is placed in the inner floor of the elevator car and communicates with the elevator main control board. The main control board controls the operation of the elevator car according to the control commands issued by the mobile terminal to achieve vibration measurement. The mobile terminal collects acceleration vibration data of the elevator car during operation based on its own acceleration sensor, and collects basic information of the elevator based on the main control board. The mobile terminal also communicates with the server to send the acceleration vibration data and the basic information to the server, so that the server can evaluate the performance of the elevator based on the acceleration vibration data and the basic information. The elevator main control board controls the operation of the elevator car according to control commands issued by the mobile terminal, including: The mobile terminal sends control commands to the elevator main control board, the control commands including the number of elevator runs; The elevator main control board receives the control command, closes the elevator car door and hall door, and controls the elevator car to move up and down between the bottom floor and the top floor according to the number of running rounds; When the elevator has completed the required number of runs, the elevator main control board sends a stop command to the mobile terminal so that the mobile terminal stops collecting acceleration vibration data.

2. The elevator vibration measurement system according to claim 1, characterized in that, The mobile terminal collects basic information about the elevator based on the elevator main control board, including: During vibration measurement, the elevator main control board sends elevator identification information, elevator mechanical status information, elevator electrical status, and elevator fault information to the mobile terminal.

3. The elevator vibration measurement system according to claim 2, characterized in that, The server evaluates the elevator's performance based on the acceleration vibration data and the basic information, including: The server calculates the vibration index data of the elevator for each round and each stage based on the acceleration vibration data; The server obtains the standard data corresponding to the elevator based on the elevator's identity information, and compares the vibration index data with the standard data. When the vibration index data meets the standard data, the elevator's performance meets the requirements; otherwise, the elevator's performance does not meet the requirements.

4. The elevator vibration measurement system according to claim 3, characterized in that, When the performance of the elevator does not meet the requirements, the server analyzes the vibration measurement of the elevator based on the elevator's mechanical status information, electrical status information, and fault information, and sends the analysis results to the mobile terminal.

5. The elevator vibration measurement system according to claim 4, characterized in that, The server analyzes the elevator's vibration measurements based on the elevator malfunction information, including: The server queries the type and principle of the fault based on the elevator fault information, and determines whether the fault information affects the current elevator vibration. If so, it extracts the corresponding fault resolution measures and guidance, and sends the fault resolution measures and guidance to the mobile terminal. Otherwise, it analyzes the vibration measurement of the elevator based on the elevator mechanical status information or elevator electrical status.

6. The elevator vibration measurement system according to claim 4, characterized in that, The server analyzes the elevator's vibration measurements based on the elevator's mechanical status information, including: The server analyzes the elevator's mechanical status information to determine whether the vibration is caused by the traction machine, car traction system, or guide rails. If so, it extracts the corresponding troubleshooting measures and instructions, and sends the troubleshooting measures and instructions to the mobile terminal. or / and, The server analyzes the elevator's vibration measurements based on the elevator's electrical status, including: Based on the elevator's electrical status, the server analyzes whether the encoder and motor connection is faulty, or whether the vibration is caused by low-speed pulsation of the motor due to harmonic torque. If so, it extracts the corresponding troubleshooting measures and instructions, and sends the troubleshooting measures and instructions to the mobile terminal.

7. The elevator vibration measurement system according to claim 4, characterized in that, After receiving the analysis results, the mobile terminal also includes: Based on the analysis results, the acceleration vibration data, and the basic information, a physical examination report of the vibration measurement is generated.

8. The elevator vibration measurement system according to any one of claims 1-7, characterized in that, Prior to performing the vibration measurement, the following is also included: Zero drift processing is performed on the accelerometer of the mobile terminal.

9. A method for measuring elevator vibration, characterized in that, It includes: A mobile terminal placed on the floor inside the elevator car communicates with the elevator main control board, and the mobile terminal sends control commands to the elevator main control board. The elevator main control board controls the operation of the elevator car according to the control commands to achieve vibration measurement; During the vibration measurement process, the mobile terminal collects acceleration vibration data of the elevator car during operation based on its own acceleration sensor, and collects basic information of the elevator based on the elevator main control board; The mobile terminal communicates with the server, and the mobile terminal sends the acceleration vibration data and the basic information to the server. The server evaluates the performance of the elevator based on the acceleration vibration data and the basic information; The elevator main control board controls the operation of the elevator car according to control commands issued by the mobile terminal, including: The mobile terminal sends control commands to the elevator main control board, the control commands including the number of elevator runs; The elevator main control board receives the control command, closes the elevator car door and hall door, and controls the elevator car to move up and down between the bottom floor and the top floor according to the number of running rounds; When the elevator has completed the required number of runs, the elevator main control board sends a stop command to the mobile terminal so that the mobile terminal stops collecting acceleration vibration data.

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