System for detecting the state of an elevator brake and method

Abstract

The application relates to an elevator brake state detection system and method, and relates to the technical field of elevator brakes. The system comprises an elevator brake state detection device and a computer device; the elevator brake state detection device is in communication connection with the computer device, and is used for detecting the working condition of the elevator brake. The elevator brake state detection device is set in the elevator brake state detection system, data of at least two positions of the elevator brake is collected through a sensor, data analysis is carried out after collection, and the data is sent to the computer device for unified collection, storage and early warning reporting. Through the mode of directly adding a standard monitoring device on the brake, the functions of monitoring, operation and communication can be realized, the error of manual maintenance is eliminated in the detection process, and the maintenance effect of the elevator brake is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the elevator brake technical field, and particularly relates to a state detection system and a detection method of an elevator brake. BACKGROUND

[0002] At present, the car elevator has been extremely widely applied in China. However, many elevator accidents occur in China every year, and cause casualties. In the elevator, the brake is one of the most important components of the elevator, and plays a crucial role in ensuring the safe operation of the equipment. In recent years, due to the brake failure, the malignant accidents occur frequently, and the safety and reliability of the brake have caused extensive attention in the industry.

[0003] In the related art, the state of the elevator brake is determined by the on-site detection of the maintenance personnel at irregular intervals, and then it is determined whether the elevator brake needs to be overhauled. After it is determined that the elevator brake needs to be overhauled, the on-site maintenance personnel informs the existence of the fault of the elevator brake by means of registering the fault and reporting step by step, and overhauls the elevator brake.

[0004] However, the detection method in the related art has a high requirement for the professional quality of the maintenance personnel, and the detection process is complex. The detection result is greatly affected by the subjective judgment of the maintenance personnel, and the effect of the overhauling method in the related art is poor. SUMMARY

[0005] The present application relates to a state detection system and a detection method of an elevator brake, which can improve the overhauling effect of the elevator brake. The technical solution is as follows:

[0006] On the one hand, a state detection system of an elevator brake is provided, which comprises a state detection device of an elevator brake and a computer device.

[0007] The state detection device of the elevator brake is in communication connection with the computer device, and is used for detecting the working condition of the elevator brake.

[0008] The state detection device of the elevator brake is used for acquiring at least two elevator brake working condition data through a sensor, the elevator brake working condition data being used for indicating the working condition of a candidate position on the elevator brake; processing the elevator brake working condition data through a data processing module to obtain detection data, the detection data comprising the working state of the elevator brake, the working state comprising a fault state, a pre-warning state and a non-pre-warning state; and sending the elevator brake working condition data and the detection data to the computer device through a communication module.

[0009] The computer device is configured to receive the detection data, generate elevator brake maintenance requirement data based on the detection data, and store the detection data.

[0010] In another aspect, a method for detecting a state of an elevator brake is provided, which is applied to a state detection device of an elevator brake in a state detection system of the elevator brake as described above, and the method comprises:

[0011] At least two elevator brake working condition data are acquired by a sensor, and the elevator brake working condition data are used to indicate working conditions at candidate positions on the elevator brake.

[0012] The detection data are obtained by processing the elevator brake working condition data by a data processing module, and the detection data include a working state of the elevator brake, and the working state includes a fault state, a pre-warning state, and a non-pre-warning state.

[0013] The elevator brake working condition data and the detection data are transmitted to the computer device by the data transmission module.

[0014] The technical scheme provided by the present application has at least the following beneficial effects:

[0015] In the state detection system of the elevator brake, the state detection device of the elevator brake is set, data of at least two positions of the elevator brake are acquired by a sensor, data analysis is performed after acquisition, and the computer device is used for unified collection, storage, and pre-warning reporting. By directly installing a standard monitoring device on the brake, the functions of monitoring, calculation, and communication can be realized, the error of manual maintenance is eliminated in the detection process, and the maintenance effect of the elevator brake is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 A structural schematic diagram of a state detection device of an elevator brake provided by an exemplary embodiment of the present application is shown;

[0018] Figure 2 A structural block diagram of a state detection system of an elevator brake provided by an exemplary embodiment of the present application is shown;

[0019] Figure 3Fig. 1 shows a structural block diagram of a state detection system of an elevator brake according to an example embodiment of the present application;

[0020] Figure 4 Fig. 2 shows a flow diagram of a state detection method of an elevator brake according to an example embodiment of the present application;

[0021] Figure 5 Fig. 3 shows a flow diagram of a data generation process according to an example embodiment of the present application. DETAILED DESCRIPTION

[0022] For the purpose, technical solutions and advantages of the present application to be clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0023] Figure 1 Fig. 1 shows a structural block diagram of a state detection system of an elevator brake according to an example embodiment of the present application; Figure 1 The state detection system of the elevator brake includes a sensor 101, a communication module 102 and a data processing module 103. The sensor 101 and the communication module 102 are respectively in communication connection with the data processing module 103.

[0024] In the embodiments of the present application, the state detection system of the elevator brake has a hardware connection relationship with the elevator brake in the application scenario. That is, in the use process, the state detection system of the elevator brake is located outside the elevator car and is connected with the elevator brake installed outside the elevator car. The embodiments of the present application do not limit the actual form of the elevator brake and the specific form of the state detection system of the elevator brake. In the embodiments of the present application, the sensor is connected with the elevator brake and is used to obtain the working conditions of at least two positions of the elevator brake in the working process. Since the elevator needs to have stability in the working process, especially in the braking process, if the parameters generated by different positions on the elevator brake are different in the movement process, it can be determined that the elevator has a fault. Therefore, the number of sensors is at least two, or the number of sensors is one, but the number of signal input ports of the sensor is at least two. That is, the sensor on the detection device of the elevator brake can receive signals of at least two positions. After the sensor obtains the signals, the signals will be sent to the data processing module in the state detection system of the elevator brake for processing. After the data processing is completed, the processed data is transmitted to other computer devices, such as a computer or a server, through the communication module to complete data storage and support subsequent operation and maintenance.

[0025] In combination with the above description of the state detection system of the elevator brake, Figure 2A structural block diagram of a state detection system of an elevator brake provided by an example embodiment of the present application is shown, which includes a state detection device 201 of an elevator brake and a computer device 202.

[0026] In the embodiment of the present application, the computer device is a device that is in communication connection with the state detection device of the elevator brake. Optionally, the computer device can be implemented as an industrial computer or a personal computer. The computer device has the functions of data receiving, storing, processing and sending.

[0027] In the state detection process of the elevator brake, the state detection device of the elevator brake is configured to acquire at least two elevator brake working condition data through a sensor, the elevator brake working condition data being used to indicate the working condition of a candidate position on the elevator brake; process the elevator brake working condition data through a data processing module to obtain detection data, the detection data including the working state of the elevator brake, the working state including at least one of a fault state, a pre-warning state and a non-pre-warning state; and send the elevator brake working condition data and the detection data to the computer device through a communication module.

[0028] The computer device is configured to receive the detection data, generate elevator brake maintenance requirement data based on the detection data and store the elevator brake maintenance requirement data.

[0029] In summary, the system provided by the embodiment of the present application sets the state detection device of the elevator brake in the state detection system of the elevator brake, acquires data of at least two positions of the elevator brake through a sensor, analyzes the data after acquisition, and sends the data to the computer device for unified collection, storage and pre-warning report. The functions of monitoring, calculation and communication can be realized by directly installing a standard monitoring device on the brake, the error of manual maintenance is eliminated in the detection process, and the maintenance effect of the elevator brake is improved.

[0030] In an example embodiment of the present application, please refer to Figure 3 The system further includes an indicator light 203. The indicator light is implemented as an external device in communication connection with the computer device. The computer device sends a start signal to the indicator light based on the working state indicated in the detection data, and the start signal is used to instruct the indicator light to work. Optionally, the indicator light includes three colors, and the indicator light displays different colors when the working state is the pre-warning state, the non-pre-warning state and the fault state, respectively; or, optionally, the indicator light is implemented as a digital tube, and the digital tube displays corresponding words when the working state is the pre-warning state, the non-pre-warning state and the fault state, respectively.

[0031] In an example embodiment of the present application, please refer to Figure 3The system further comprises a server 204. The server is communicatively connected with the computer device. The computer device synchronizes the detection data into the server. Optionally, the server is used for data aggregation and data recording, so as to perform data analysis and deployment by manufacturers or maintenance personnel. Optionally, the server is implemented as a cloud server, or the server is implemented as an entity server cluster.

[0032] Figure 4 A flowchart of a state detection method of an elevator brake provided by an example embodiment of the present application is shown. The method is applied to the state detection device of the elevator brake in the state detection system of the elevator brake as shown. Figure 2 The method comprises the following steps.

[0033] In step 401, at least two elevator brake working condition data are acquired by a sensor.

[0034] In the example embodiment, the elevator brake working condition data is used to indicate the working condition of the candidate position on the elevator brake. Optionally, in the working condition test scene of the elevator brake, the positions on the left and right sides of the elevator brake are usually selected as the two candidate positions. That is, the number of the candidate positions is two, the first candidate position is located on the left side of the elevator brake, and the second candidate position is located on the right side of the elevator brake. The elevator brake working condition data is the motion condition of the two positions in the motion process. Optionally, the motion condition can be represented by the data such as speed, acceleration, vibration amplitude, displacement condition, etc.

[0035] In step 402, the elevator brake working condition data is processed by a data processing module to obtain detection data.

[0036] In the example embodiment, as described above, the detection data comprises the working state of the elevator brake, and the working state comprises at least one of a fault state, a pre-warning state and a non-pre-warning state. In the fault state, it is indicated that the elevator brake needs to be repaired immediately. In the pre-warning state, it is indicated that the elevator brake may have a risk of failure, but has not failed. In the non-pre-warning state, it is indicated that the current running state of the elevator brake is good. In the example embodiment, the working state comprises at least one of the above three states.

[0037] In step 403, the elevator brake working condition data and the detection data are sent to a computer device by a data transmission module.

[0038] The process is the process of data sending by the data transmission module.

[0039] In summary, the method provided in the embodiments of the present application provides the setting of the state detection device of the elevator brake in the state detection system of the elevator brake, data acquisition for at least two positions of the elevator brake is performed through the sensor, data analysis is performed after the acquisition, and the data is sent to the computer device for unified collection, storage and early warning reporting. Through the way of directly installing a standard monitoring device on the brake, the functions of monitoring, calculation and communication can be realized, the error of manual maintenance is eliminated in the detection process, and the maintenance effect of the elevator brake is improved.

[0040] In the related application scenarios of the embodiments of the present application, the common forms of the elevator brake include block brakes and hub brakes. The sensor is implemented as a gyroscope.

[0041] Corresponding to the block brake, the sensor is implemented as a gyroscope, Figure 5 A flowchart of a generation process of detection data is shown, which is provided by one example embodiment of the present application. The method is applied to the state detection device of the elevator brake in the state detection system of the elevator brake as shown in Figure 2 The method can replace step 402 in Figure 4 and is implemented as steps 501 to 503. The method includes:

[0042] In step 501, at least two vibration value data are obtained through the gyroscope.

[0043] It should be noted that in the related application scenarios of the embodiments of the present application, the common forms of the elevator brake include block brakes and hub brakes. The sensor is implemented as a gyroscope.

[0044] For example, the at least two vibration value data include first vibration value data and second vibration value data. In the embodiments of the present application, the number of gyroscopes is not limited. One gyroscope can obtain two or more groups of vibration value data, or the number of gyroscopes is at least two, and each gyroscope can obtain different data. In one example, corresponding to the case that there is a hoisting machine rack in the actual application scenario, two gyroscopes are respectively located on the left and right sides of the hoisting machine. When the elevator brake acts, the brake pressure is released instantaneously, and vibration of the brake is caused. At this time, the vibration value data can be received.

[0045] In step 502, the at least two vibration value data are compared through the data processing module to obtain a vibration value comparison result.

[0046] Optionally, based on the example provided in step 501, the comparison of the first vibration value data and the second vibration value data is the comparison of the vibration amplitude indicated by the first vibration value data and the vibration amplitude indicated by the second vibration value data.

[0047] At step 503, detection data is generated based on the vibration value comparison result.

[0048] Optionally, in one example, in response to the vibration value comparison result indicating that the difference of the vibration amplitudes in the vibration value data is less than the first amplitude difference threshold, it is determined that the working state is a non-warning state; in response to the vibration value comparison result indicating that the difference of the vibration amplitudes in the vibration value data is greater than the first amplitude difference threshold and less than the second amplitude difference threshold, it is determined that the working state is a pre-warning state; and in response to the vibration value comparison result indicating that the difference of the vibration amplitudes in the vibration value data is greater than the second amplitude difference threshold, it is determined that the working state is a fault state.

[0049] In this case, when it is confirmed that there is a safety hazard, the state detection device of the elevator brake will transmit a pre-warning instruction through the communication module and send it to the background monitoring platform, and make a request for maintenance or stop the elevator for maintenance for the operation of the elevator.

[0050] The above is only an optional embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A state detection system of an elevator brake, characterized by, The state detection system comprises a state detection device of an elevator brake and a computer device; The state detection device of the elevator brake is in communication connection with the computer device, and is configured to detect working conditions of the elevator brake; The state detection device of the elevator brake is configured to acquire at least two elevator brake working condition data by a sensor, the elevator brake working condition data being configured to indicate working conditions of candidate positions on the elevator brake; process the elevator brake working condition data by a data processing module to obtain detection data, the detection data comprising a working state of the elevator brake, the working state comprising at least one of a fault state, a pre-warning state and a non-pre-warning state; and send the elevator brake working condition data and the detection data to the computer device by a communication module; wherein the sensor is connected with the elevator brake, and is configured to acquire working conditions of at least two positions of the elevator brake in a working process, i.e., the sensor can receive signals of at least two positions; The computer device is configured to receive the detection data, generate elevator brake maintenance requirement data based on the detection data and store the elevator brake maintenance requirement data. The elevator brake working condition data comprises at least two vibration value data; the state detection device of the elevator brake is further configured to determine the working state as the non-pre-warning state in response to a result of comparing the vibration value data indicating that a difference between vibration amplitudes in the vibration value data is less than a first amplitude difference threshold value; determine the working state as the pre-warning state in response to the result of comparing the vibration value data indicating that the difference between the vibration amplitudes in the vibration value data is greater than the first amplitude difference threshold value and less than a second amplitude difference threshold value; and determine the working state as the fault state in response to the result of comparing the vibration value data indicating that the difference between the vibration amplitudes in the vibration value data is greater than the second amplitude difference threshold value.

2. The state detection system of an elevator brake according to claim 1, characterized in that, The sensor is implemented as a gyroscope.

3. The state detection system of an elevator brake according to claim 2, characterized in that, The state detection device of the elevator brake is further configured to acquire at least two vibration value data by a gyroscope; compare the at least two vibration value data by the data processing module to obtain a vibration value comparison result, and generate the detection data based on the vibration value comparison result.

4. The state detection system of an elevator brake according to claim 3, characterized in that, The state detection system of the elevator brake further comprises an indicator light; The indicator light is in communication connection with the computer device; The computer device is further configured to send a start signal to the indicator light based on the working state indicated in the detection data, the start signal being configured to indicate working of the indicator light.

5. The state detection system of an elevator brake according to claim 1, characterized in that, The state detection system of the elevator brake further comprises a server; The server is in communication connection with the computer device; The computer device is further configured to synchronize the detection data to the server; The server is configured to receive the detection data.

6. A method of detecting a state of an elevator brake, characterized by, The method is applied to the state detection device of the elevator brake in the state detection system of the elevator brake as claimed in any one of claims 1 to 5, and the method comprises: Obtaining at least two elevator brake working condition data through a sensor, the elevator brake working condition data being used to indicate a working condition of a candidate position on the elevator brake; Processing the elevator brake working condition data through a data processing module to obtain detection data, the detection data including a working state of the elevator brake, the working state including a fault state, a pre-warning state and a non-pre-warning state; Sending the elevator brake working condition data and the detection data to a computer device through a data transmission module.

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