A fault diagnosis system for electromagnetic brake

Abstract

The present invention discloses a fault diagnosis system for an electromagnetic brake, and specifically relates to the technical field of electromagnetic brake fault diagnosis, including an electromagnetic brake operation cycle division module, an electromagnetic brake fault data acquisition module, an electromagnetic brake vibration data processing module, an electromagnetic brake coil data processing module, an electromagnetic brake magnetic force data processing module, an electromagnetic brake fault diagnosis analysis module, and an electromagnetic brake fault diagnosis evaluation module. The present invention collects key operation parameter information of each monitoring sub-area of ​​the electromagnetic brake operation cycle through a sensor, calculates the electromagnetic brake vibration anomaly monitoring index, the electromagnetic brake coil risk monitoring index and the electromagnetic brake operation stability index, and further analyzes the operation fault warning coefficient of the i+1th monitoring sub-area, which is conducive to realizing an automated fault diagnosis process. At the same time, it can predict possible faults based on historical data and the current operation status, provide scientific decision-making suggestions for management personnel, and realize intelligent fault diagnosis.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic brake fault diagnosis, and more specifically, to an electromagnetic brake fault diagnosis system. Background Art

[0002] An electromagnetic gate is a valve that uses electromagnetic force to control the opening and closing of a gate. It is mainly composed of an electromagnet, a valve body, a gate and other parts. The electromagnet is the control part, which controls the opening and closing of the valve by switching on and off the current; the valve body and the gate are the executive parts, which are responsible for the cutoff and conduction of the fluid.

[0003] As a key component of industrial automation, electromagnetic brake fault diagnosis technology is crucial. It can quickly locate and solve faults, improve production efficiency, timely discover and eliminate safety hazards, ensure production safety, reduce sudden failures through preventive maintenance, and reduce maintenance costs, which is of great significance to the stable and efficient operation of industrial production.

[0004] However, there are still some shortcomings in its actual use. For example, the existing electromagnetic brake fault detection method is limited by the detection principle or detection environment. There are various interference sources in the electromagnetic environment, which makes it difficult to accurately capture the fault characteristics and has the problem of insufficient detection accuracy.

[0005] The existing electromagnetic brake fault detection technology mainly relies on manual detection. This method is not only inefficient, but also limited by human factors. It is difficult to give full play to the intelligence of the equipment diagnosis method. The fault types of electromagnetic brakes are diverse, and it is necessary to establish an intelligent fault diagnosis process to integrate data from different sensors. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a fault diagnosis system for an electromagnetic brake, which is used to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a fault diagnosis system for an electromagnetic brake, comprising:

[0008] Electromagnetic gate operation cycle division module: used to obtain the electromagnetic gate operation cycle within a preset time period, divide the electromagnetic gate operation cycle within the preset time period into various monitoring sub-areas according to an equal time division method, and number each monitoring sub-area of ​​the electromagnetic gate operation cycle.

[0009] Electromagnetic brake fault data acquisition module: used to collect key operating parameter information of each monitoring sub-area of ​​the electromagnetic brake operation cycle through sensors. The electromagnetic brake fault data acquisition module includes an electromagnetic brake vibration data acquisition unit, an electromagnetic brake coil data acquisition unit and an electromagnetic brake magnetic force stability data acquisition unit. The key operating parameter information includes electromagnetic brake vibration data, electromagnetic brake coil data and electromagnetic brake magnetic force stability data.

[0010] Electromagnetic brake vibration data processing module: used to receive the key operating parameter information transmitted by the electromagnetic brake fault data acquisition module, and calculate the electromagnetic brake vibration abnormality monitoring index of each monitoring sub-area in the electromagnetic brake operation cycle according to the electromagnetic brake vibration data acquisition unit.

[0011] Electromagnetic brake coil data processing module: used to receive the key operating parameter information transmitted by the electromagnetic brake fault data acquisition module, and calculate the electromagnetic brake coil risk monitoring index of each monitoring sub-area of ​​the electromagnetic brake operation cycle according to the electromagnetic brake coil data acquisition unit.

[0012] Electromagnetic brake magnetic data processing module: used to receive the key operating parameter information transmitted by the electromagnetic brake fault data acquisition module, and calculate the electromagnetic brake operation stability index of each monitoring sub-area of ​​the electromagnetic brake operation cycle according to the electromagnetic brake magnetic stability data acquisition unit.

[0013] Electromagnetic brake fault diagnosis and analysis module: used to obtain the electromagnetic brake vibration abnormality monitoring index, electromagnetic brake coil risk monitoring index and electromagnetic brake operation stability index of each monitoring sub-area in the electromagnetic brake operation cycle, and analyze to obtain the operation fault warning coefficient of the i+1th monitoring sub-area in the electromagnetic brake operation cycle.

[0014] Electromagnetic brake fault diagnosis and evaluation module: used to obtain the operation fault warning coefficient of the i+1th monitoring sub-area in the electromagnetic brake operation cycle, compare it with the preset operation fault warning coefficient, and process it.

[0015] Preferably, the specific division method of the electromagnetic brake operation cycle division module is:

[0016] The operation cycle of the electromagnetic brake within the preset time period is obtained, and is divided into monitoring sub-areas by equal time division, and each monitoring sub-area of ​​the electromagnetic brake operation cycle is numbered 1, 2, ...i, ...n in sequence.

[0017] Preferably, the electromagnetic brake fault data acquisition module is specifically:

[0018] Electromagnetic brake vibration data acquisition unit: The sensor collects the vibration frequency, amplitude, and vibration speed of each monitoring sub-area during the operation period of the electromagnetic brake, which are marked as dp respectively. i 、df i 、dv i, where i = 1, 2, ... n, i represents the number of the i-th monitoring sub-area;

[0019] Electromagnetic brake coil data acquisition unit: The sensor collects the number of coil turns, coil temperature, and ambient temperature of each monitoring sub-area during the operation cycle of the electromagnetic brake, which are marked as xZ i , xt i 、xh i ;

[0020] Electromagnetic brake magnetic force stability data acquisition unit: The sensor collects the magnetic output intensity and input current of each monitoring sub-area during the operation cycle of the electromagnetic brake, which are marked as cq respectively. i ,cl i .

[0021] Preferably, the electromagnetic brake vibration data processing module is specifically:

[0022] Step S01: Extract the vibration frequency of each monitoring sub-area during the operation cycle of the electromagnetic brake, according to the formula: Get the vibration frequency deviation degree, where TP i It is expressed as the vibration frequency deviation degree of the i-th monitoring sub-area, dp i represents the vibration frequency of the ith monitoring sub-area, DP0 represents the preset vibration frequency, ΔP represents the allowable difference in vibration frequency, and n represents the number of monitoring sub-areas;

[0023] Step S02: extract the amplitude of each monitoring sub-area during the electromagnetic brake operation cycle, according to the formula: Get the amplitude deviation degree, where TF i It is represented by the amplitude deviation degree of the i-th monitoring sub-area, DF0 is represented by the preset amplitude, df i It is represented as the amplitude of the ith monitoring sub-area, and ΔF is represented as the amplitude allowable difference;

[0024] Step S03: Extract the vibration speed of each monitoring sub-area during the electromagnetic brake operation cycle, using the formula: Get the vibration velocity deviation degree, where TV i It is represented as the vibration velocity deviation degree of the ith monitoring sub-area, DV0 is represented as the preset vibration velocity, dv i It is represented as the vibration velocity of the ith monitoring sub-area, and ΔV is represented as the allowable difference in vibration velocity;

[0025] Step S04: The calculation formula of the electromagnetic brake vibration abnormality monitoring index is:

[0026] where α iIt is expressed as the electromagnetic brake vibration abnormal monitoring index of the i-th monitoring sub-area, TP i It is expressed as the vibration frequency deviation degree of the i-th monitoring sub-area, TP i-1 It is expressed as the vibration frequency deviation degree of the i-1th monitoring sub-area, TF i It is expressed as the amplitude deviation degree of the i-th monitoring sub-area, TF i-1 It is expressed as the amplitude deviation degree of the i-1th monitoring sub-area, TV i Expressed as the vibration velocity deviation degree of the ith monitoring sub-area, TV i-1 It is expressed as the vibration velocity deviation degree of the i-1th monitoring sub-area, SP is expressed as the standard deviation of the vibration frequency deviation degree, e is expressed as a natural constant, μ1 and μ2 are expressed as the compensation factors of the amplitude deviation degree and the vibration velocity deviation degree, respectively.

[0027] Preferably, the electromagnetic brake coil data processing module is specifically:

[0028] Step S01: extract the coil temperature and ambient temperature of each monitoring sub-area during the electromagnetic brake operation cycle, according to the formula: Get the temperature risk diagnosis level, where MT i It is expressed as the temperature risk diagnosis degree of the ith monitoring sub-area, xt i It is represented as the coil temperature of the ith monitoring sub-area, xh i It is represented as the ambient temperature of the ith monitoring sub-area, and e is represented as a natural constant;

[0029] Step S02: The calculation formula of the electromagnetic brake coil risk monitoring index is:

[0030] where β i It is expressed as the electromagnetic brake coil risk monitoring index of the i-th monitoring sub-area, MT i It is expressed as the temperature risk diagnosis degree of the ith monitoring sub-area, xz i It is represented as the number of coil turns in the ith monitoring sub-area, and π is represented as a natural constant.

[0031] Preferably, the electromagnetic brake magnetic force data processing module is specifically:

[0032] Step S01: Obtain the rated input current of the electromagnetic brake device, marked as el i ;

[0033] Step S02: The calculation formula of the electromagnetic brake operation stability index is:

[0034] where γ i It is expressed as the electromagnetic brake operation stability index of the i-th monitoring sub-area, eli It is expressed as the rated input current of the ith monitoring sub-area, cl i It is represented as the input current of the ith monitoring sub-area, cq i It is represented as the magnetic output intensity of the i-th monitoring sub-area, and CL0 is represented as the preset magnetic output intensity.

[0035] Preferably, the calculation formula of the operation fault warning coefficient is:

[0036] where θ i+1 It is expressed as the operation fault warning coefficient of the i+1th monitoring sub-area, α i It is expressed as the electromagnetic brake vibration abnormal monitoring index of the i-th monitoring sub-area, α i-1 is represented by the electromagnetic brake vibration anomaly monitoring index of the i-1th monitoring sub-area, Δα is represented by the mean value of the electromagnetic brake vibration anomaly monitoring index, β i It is expressed as the electromagnetic brake coil risk monitoring index of the i-th monitoring sub-area, β i-1 is represented by the electromagnetic brake coil risk monitoring index of the i-1th monitoring sub-area, Δβ is represented by the mean value of the electromagnetic brake coil risk monitoring index, and γ i It is expressed as the electromagnetic brake operation stability index of the i-th monitoring sub-area, γ i-1 It is represented as the electromagnetic brake operation stability index of the i-1th monitoring sub-area, and Δγ is represented as the mean value of the electromagnetic brake operation stability index.

[0037] Preferably, the specific evaluation method of the electromagnetic brake fault diagnosis and evaluation module is:

[0038] Obtain the operation fault warning coefficient of the i+1th monitoring sub-area of ​​the electromagnetic brake operation cycle, and compare it with the preset operation fault warning coefficient. If the operation fault warning coefficient of the i+1th monitoring sub-area of ​​the electromagnetic brake is greater than the preset operation fault warning coefficient, it indicates that there is a potential fault in the operation of the electromagnetic brake, and an alarm should be issued in time to notify relevant personnel. Otherwise, it indicates that there is no abnormality in the operation of the electromagnetic brake.

[0039] Technical effects and advantages of the present invention:

[0040] 1. The present invention provides a fault diagnosis system for an electromagnetic brake, which collects key operating parameter information of each monitoring sub-area during the operation cycle of the electromagnetic brake through sensors, calculates the electromagnetic brake vibration abnormality monitoring index of each monitoring sub-area during the operation cycle of the electromagnetic brake according to the electromagnetic brake vibration data acquisition unit, calculates the electromagnetic brake coil risk monitoring index of each monitoring sub-area during the operation cycle of the electromagnetic brake according to the electromagnetic brake coil data acquisition unit, and calculates the electromagnetic brake operation stability index of each monitoring sub-area during the operation cycle of the electromagnetic brake according to the electromagnetic brake magnetic force stability data acquisition unit, thereby realizing the use of high-precision and high-stability sensors to monitor various parameters of the electromagnetic brake, deeply processing and analyzing the collected data, and automatically evaluating the fault degree of the electromagnetic brake, which can reduce manual intervention, improve diagnostic efficiency, and improve the comprehensiveness and accuracy of fault detection;

[0041] 2. The present invention provides a fault diagnosis system for an electromagnetic brake, which utilizes an electromagnetic brake fault diagnosis analysis module, combined with the historical electromagnetic brake vibration abnormality monitoring index, the historical electromagnetic brake coil risk monitoring index and the historical electromagnetic brake operation stability index of each monitoring sub-area in the electromagnetic brake operation cycle, to analyze and obtain the operation fault warning coefficient of the i+1th monitoring sub-area in the electromagnetic brake operation cycle, and compare it with the preset operation fault warning coefficient. If the operation fault warning coefficient of the i+1th monitoring sub-area of ​​the electromagnetic brake is greater than the preset operation fault warning coefficient, it indicates that there is a potential fault in the operation of the electromagnetic brake, and an alarm should be issued in time to notify relevant personnel. Otherwise, it indicates that there is no abnormal phenomenon in the operation of the electromagnetic brake, which is conducive to realizing an automated fault diagnosis process. Through preset diagnostic rules and algorithms, the fault of the electromagnetic brake can be quickly and accurately diagnosed. At the same time, it can predict the occurrence of possible faults based on historical data and the current operating status, provide scientific decision-making suggestions for management personnel, and realize intelligent fault diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the system module process connection of the present invention.

[0043] Figure 2 It is a structural schematic diagram of the electromagnetic brake fault data acquisition module of the present invention. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1As shown, the present invention provides an electromagnetic brake fault diagnosis system, including an electromagnetic brake operation cycle division module, an electromagnetic brake fault data acquisition module, an electromagnetic brake vibration data processing module, an electromagnetic brake coil data processing module, an electromagnetic brake magnetic force data processing module, an electromagnetic brake fault diagnosis analysis module, and an electromagnetic brake fault diagnosis evaluation module.

[0046] The electromagnetic brake operation cycle division module is connected to the electromagnetic brake fault data acquisition module, the electromagnetic brake fault data acquisition module is connected to the electromagnetic brake vibration data processing module, the electromagnetic brake coil data processing module and the electromagnetic brake magnetic force data processing module, the electromagnetic brake vibration data processing module, the electromagnetic brake coil data processing module and the electromagnetic brake magnetic force data processing module are connected to the electromagnetic brake fault diagnosis and analysis module, and the electromagnetic brake fault diagnosis and analysis module is connected to the electromagnetic brake fault diagnosis and evaluation module.

[0047] The electromagnetic brake operation cycle division module is used to obtain the electromagnetic brake operation cycle within a preset time period, divide the electromagnetic brake operation cycle within the preset time period into each monitoring sub-area according to an equal time division method, and number each monitoring sub-area of ​​the electromagnetic brake operation cycle.

[0048] In a possible design, the specific division method of the electromagnetic brake operation cycle division module is:

[0049] The operation cycle of the electromagnetic gate within the preset time period is obtained, and the equal time division strategy is adopted to divide it into various monitoring sub-areas, and the monitoring sub-areas of the electromagnetic gate operation cycle are numbered 1, 2, ...i, ...n in sequence.

[0050] See also Figure 2 As shown, the electromagnetic brake fault data acquisition module is used to collect key operating parameter information of each monitoring sub-area of ​​the electromagnetic brake operation cycle through sensors. The electromagnetic brake fault data acquisition module includes an electromagnetic brake vibration data acquisition unit, an electromagnetic brake coil data acquisition unit and an electromagnetic brake magnetic force stability data acquisition unit. The key operating parameter information includes electromagnetic brake vibration data, electromagnetic brake coil data and electromagnetic brake magnetic force stability data.

[0051] In a possible design, the electromagnetic brake fault data acquisition module is specifically:

[0052] Electromagnetic brake vibration data acquisition unit: The sensor collects the vibration frequency, amplitude, and vibration speed of each monitoring sub-area during the operation period of the electromagnetic brake, which are marked as dp respectively. i 、df i 、dv i , where i = 1, 2, ... n, i represents the number of the i-th monitoring sub-area;

[0053] Electromagnetic brake coil data acquisition unit: The sensor collects the number of coil turns, coil temperature, and ambient temperature of each monitoring sub-area during the operation period of the electromagnetic brake, which are marked as xz i , xt i 、xh i ;

[0054] Electromagnetic brake magnetic force stability data acquisition unit: The sensor collects the magnetic output intensity and input current of each monitoring sub-area during the operation cycle of the electromagnetic brake, which are marked as cq respectively. i ,cl i .

[0055] In this embodiment, it should be specifically explained that the sensor in the electromagnetic brake vibration data acquisition unit is a vibration sensor, the sensor in the electromagnetic brake coil data acquisition unit is a temperature sensor, and the sensor in the electromagnetic brake magnetic force stability data acquisition unit is a current sensor and a magnetometer.

[0056] The electromagnetic brake vibration data processing module is used to receive the key operating parameter information transmitted by the electromagnetic brake fault data acquisition module, and calculate the electromagnetic brake vibration abnormality monitoring index of each monitoring sub-area of ​​the electromagnetic brake operation cycle according to the electromagnetic brake vibration data acquisition unit.

[0057] In a possible design, the electromagnetic brake vibration data processing module is specifically:

[0058] Step S01: Extract the vibration frequency of each monitoring sub-area during the operation cycle of the electromagnetic brake, according to the formula: Get the vibration frequency deviation degree, where TP i It is expressed as the vibration frequency deviation degree of the i-th monitoring sub-area, dp i represents the vibration frequency of the ith monitoring sub-area, DP0 represents the preset vibration frequency, ΔP represents the allowable difference in vibration frequency, and n represents the number of monitoring sub-areas;

[0059] Step S02: extract the amplitude of each monitoring sub-area during the electromagnetic brake operation cycle, according to the formula: Get the amplitude deviation degree, where TF i It is represented by the amplitude deviation degree of the i-th monitoring sub-area, DF0 is represented by the preset amplitude, df i It is represented as the amplitude of the ith monitoring sub-area, and ΔF is represented as the amplitude allowable difference;

[0060] Step S03: Extract the vibration speed of each monitoring sub-area during the electromagnetic brake operation cycle, using the formula: Get the vibration velocity deviation degree, where TV iIt is represented as the vibration velocity deviation degree of the ith monitoring sub-area, DV0 is represented as the preset vibration velocity, dv i It is represented as the vibration velocity of the ith monitoring sub-area, and ΔV is represented as the allowable difference in vibration velocity;

[0061] Step S04: The calculation formula of the electromagnetic brake vibration abnormality monitoring index is:

[0062] where α i It is expressed as the electromagnetic brake vibration abnormal monitoring index of the i-th monitoring sub-area, TP i It is expressed as the vibration frequency deviation degree of the i-th monitoring sub-area, TP i-1 It is expressed as the vibration frequency deviation degree of the i-1th monitoring sub-area, TF i It is expressed as the amplitude deviation degree of the i-th monitoring sub-area, TF i-1 It is expressed as the amplitude deviation degree of the i-1th monitoring sub-area, TV i Expressed as the vibration velocity deviation degree of the ith monitoring sub-area, TV i-1 It is expressed as the vibration velocity deviation degree of the i-1th monitoring sub-area, SP is expressed as the standard deviation of the vibration frequency deviation degree, e is expressed as a natural constant, μ1 and μ2 are expressed as the compensation factors of the amplitude deviation degree and the vibration velocity deviation degree respectively.

[0063] In this embodiment, it should be specifically explained that the calculation formula of the standard deviation of the vibration frequency deviation degree is:

[0064] Where SP represents the standard deviation of the vibration frequency deviation, TP i It is expressed as the vibration frequency deviation degree of the i-th monitoring sub-area, and ΔTP is expressed as the mean value of the vibration frequency deviation degree. The formula is:

[0065] The electromagnetic brake coil data processing module is used to receive the key operating parameter information transmitted by the electromagnetic brake fault data acquisition module, and calculate the electromagnetic brake coil risk monitoring index of each monitoring sub-area of ​​the electromagnetic brake operation cycle according to the electromagnetic brake coil data acquisition unit.

[0066] In a possible design, the electromagnetic brake coil data processing module is specifically:

[0067] Step S01: extract the coil temperature and ambient temperature of each monitoring sub-area during the electromagnetic brake operation cycle, according to the formula: Get the temperature risk diagnosis level, where MT i It is expressed as the temperature risk diagnosis degree of the ith monitoring sub-area, xt i It is represented as the coil temperature of the ith monitoring sub-area, xhi It is represented as the ambient temperature of the ith monitoring sub-area, and e is represented as a natural constant;

[0068] Step S02: The calculation formula of the electromagnetic brake coil risk monitoring index is:

[0069] where β i It is expressed as the electromagnetic brake coil risk monitoring index of the i-th monitoring sub-area, MT i It is expressed as the temperature risk diagnosis degree of the ith monitoring sub-area, xz i It is represented as the number of coil turns in the ith monitoring sub-area, and π is represented as a natural constant.

[0070] The electromagnetic brake magnetic force data processing module is used to receive the key operating parameter information transmitted by the electromagnetic brake fault data acquisition module, and calculate the electromagnetic brake operation stability index of each monitoring sub-area of ​​the electromagnetic brake operation cycle according to the electromagnetic brake magnetic force stability data acquisition unit.

[0071] In a possible design, the electromagnetic brake magnetic force data processing module is specifically:

[0072] Step S01: Obtain the rated input current of the electromagnetic brake device, marked as el i ;

[0073] Step S02: The calculation formula of the electromagnetic brake operation stability index is:

[0074] where γ i It is expressed as the electromagnetic brake operation stability index of the i-th monitoring sub-area, el i It is expressed as the rated input current of the ith monitoring sub-area, cl i It is represented as the input current of the ith monitoring sub-area, cq i It is represented as the magnetic output intensity of the i-th monitoring sub-area, and CL0 is represented as the preset magnetic output intensity.

[0075] The electromagnetic brake fault diagnosis and analysis module is used to obtain the electromagnetic brake vibration abnormality monitoring index, the electromagnetic brake coil risk monitoring index and the electromagnetic brake operation stability index of each monitoring sub-area in the electromagnetic brake operation cycle, and analyze to obtain the operation fault warning coefficient of the i+1th monitoring sub-area in the electromagnetic brake operation cycle.

[0076] In a possible design, the calculation formula of the operation fault warning coefficient is:

[0077] where θ i+1 It is expressed as the operation fault warning coefficient of the i+1th monitoring sub-area, α iIt is expressed as the electromagnetic brake vibration abnormal monitoring index of the i-th monitoring sub-area, α i-1 is represented by the electromagnetic brake vibration anomaly monitoring index of the i-1th monitoring sub-area, Δα is represented by the mean value of the electromagnetic brake vibration anomaly monitoring index, β i It is expressed as the electromagnetic brake coil risk monitoring index of the i-th monitoring sub-area, β i-1 is represented by the electromagnetic brake coil risk monitoring index of the i-1th monitoring sub-area, Δβ is represented by the mean value of the electromagnetic brake coil risk monitoring index, and γ i It is expressed as the electromagnetic brake operation stability index of the i-th monitoring sub-area, γ i-1 It is represented as the electromagnetic brake operation stability index of the i-1th monitoring sub-area, and Δγ is represented as the mean value of the electromagnetic brake operation stability index.

[0078] The electromagnetic brake fault diagnosis and evaluation module is used to obtain the operation fault warning coefficient of the i+1th monitoring sub-area of ​​the electromagnetic brake operation cycle, compare it with the preset operation fault warning coefficient, and process it.

[0079] In a possible design, the specific evaluation method of the electromagnetic brake fault diagnosis and evaluation module is:

[0080] Obtain the operation fault warning coefficient of the i+1th monitoring sub-area of ​​the electromagnetic brake operation cycle, and compare it with the preset operation fault warning coefficient. If the operation fault warning coefficient of the i+1th monitoring sub-area of ​​the electromagnetic brake is greater than the preset operation fault warning coefficient, it indicates that there is a potential fault in the operation of the electromagnetic brake, and an alarm should be issued in time to notify relevant personnel. Otherwise, it indicates that there is no abnormality in the operation of the electromagnetic brake.

[0081] In the present embodiment, it is necessary to specifically explain that the present invention collects the key operating parameter information of each monitoring sub-area during the operation cycle of the electromagnetic gate through sensors, calculates the electromagnetic gate vibration abnormality monitoring index of each monitoring sub-area during the operation cycle of the electromagnetic gate according to the electromagnetic gate vibration data acquisition unit, calculates the electromagnetic gate coil risk monitoring index of each monitoring sub-area during the operation cycle of the electromagnetic gate according to the electromagnetic gate coil data acquisition unit, and calculates the electromagnetic gate operation stability index of each monitoring sub-area during the operation cycle of the electromagnetic gate according to the electromagnetic gate magnetic stability data acquisition unit, thereby realizing the use of high-precision and high-stability sensors to monitor various parameters of the electromagnetic gate, deeply processing and analyzing the collected data, and automatically evaluating the fault degree of the electromagnetic gate, which can reduce manual intervention, improve diagnostic efficiency, and improve the comprehensiveness and accuracy of fault detection.

[0082] In the present embodiment, it should be specifically explained that the present invention utilizes the electromagnetic brake fault diagnosis and analysis module, combines the historical electromagnetic brake vibration abnormality monitoring index of each monitoring sub-area in the electromagnetic brake operation cycle, the historical electromagnetic brake coil risk monitoring index and the historical electromagnetic brake operation stability index, analyzes and obtains the operation fault warning coefficient of the i+1th monitoring sub-area in the electromagnetic brake operation cycle, and compares it with the preset operation fault warning coefficient. If the operation fault warning coefficient of the i+1th monitoring sub-area of ​​the electromagnetic brake is greater than the preset operation fault warning coefficient, it indicates that there is a potential fault in the operation of the electromagnetic brake, and an alarm should be issued in time to notify relevant personnel. Otherwise, it indicates that there is no abnormal phenomenon in the operation of the electromagnetic brake, which is conducive to realizing an automated fault diagnosis process. Through the preset diagnostic rules and algorithms, the fault of the electromagnetic brake can be quickly and accurately diagnosed. At the same time, it can predict the occurrence of possible faults based on historical data and the current operating status, provide scientific decision-making suggestions for management personnel, and realize intelligent fault diagnosis.

[0083] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fault diagnosis system for an electromagnetic brake, characterized in that: include: Electromagnetic brake operation cycle division module: used to obtain the electromagnetic brake operation cycle within a preset time period, divide the electromagnetic brake operation cycle within the preset time period into various monitoring sub-areas according to an equal time division method, and number each monitoring sub-area of ​​the electromagnetic brake operation cycle; Electromagnetic brake fault data acquisition module: used to collect key operating parameter information of each monitoring sub-area during the operation period of the electromagnetic brake through sensors. The electromagnetic brake fault data acquisition module includes an electromagnetic brake vibration data acquisition unit, an electromagnetic brake coil data acquisition unit and an electromagnetic brake magnetic force stability data acquisition unit. The key operating parameter information includes electromagnetic brake vibration data, electromagnetic brake coil data and electromagnetic brake magnetic force stability data; Electromagnetic brake vibration data processing module: used to receive the key operating parameter information transmitted by the electromagnetic brake fault data acquisition module, and calculate the electromagnetic brake vibration abnormality monitoring index of each monitoring sub-area of ​​the electromagnetic brake operation cycle according to the electromagnetic brake vibration data acquisition unit; The electromagnetic brake vibration data processing module is specifically: Step S01: Extract the vibration frequency of each monitoring sub-area during the operation cycle of the electromagnetic brake, according to the formula: Get the vibration frequency deviation degree, where TP i It is expressed as the vibration frequency deviation degree of the i-th monitoring sub-area, dp i It is represented as the vibration frequency of the ith monitoring sub-area, DP0 is represented as the preset vibration frequency, and ΔP is represented as the allowable difference of the vibration frequency; Step S02: extract the amplitude of each monitoring sub-area during the electromagnetic brake operation cycle, according to the formula: Get the amplitude deviation degree, where TF i It is represented by the amplitude deviation degree of the i-th monitoring sub-area, DF0 is represented by the preset amplitude, df i It is represented as the amplitude of the ith monitoring sub-area, and ΔF is represented as the amplitude allowable difference; Step S03: Extract the vibration speed of each monitoring sub-area during the electromagnetic brake operation cycle, using the formula: Get the vibration velocity deviation degree, where TV i It is represented as the vibration velocity deviation degree of the ith monitoring sub-area, DV0 is represented as the preset vibration velocity, dv i It is represented as the vibration velocity of the ith monitoring sub-area, and ΔV is represented as the allowable difference in vibration velocity; Step S04: The calculation formula of the electromagnetic brake vibration abnormality monitoring index is: where α i It is expressed as the electromagnetic brake vibration abnormal monitoring index of the i-th monitoring sub-area, TP i It is expressed as the vibration frequency deviation degree of the i-th monitoring sub-area, TP i-1 It is expressed as the vibration frequency deviation degree of the i-1th monitoring sub-area, TF i It is expressed as the amplitude deviation degree of the i-th monitoring sub-area, TF i-1 It is expressed as the amplitude deviation degree of the i-1th monitoring sub-area, TV i Expressed as the vibration velocity deviation degree of the ith monitoring sub-area, TV i-1 It is represented as the vibration velocity deviation degree of the i-1th monitoring sub-area, SP is represented as the standard deviation of the vibration frequency deviation degree, e is represented as a natural constant, μ1 and μ2 are respectively represented as the compensation factors of the amplitude deviation degree and the vibration velocity deviation degree; The calculation formula for the standard deviation of the vibration frequency deviation degree is: Where SP represents the standard deviation of the vibration frequency deviation, TP i It is expressed as the vibration frequency deviation degree of the i-th monitoring sub-area, and ΔTP is expressed as the mean value of the vibration frequency deviation degree. The formula is: n represents the number of monitoring sub-areas; Electromagnetic brake coil data processing module: used to receive the key operating parameter information transmitted by the electromagnetic brake fault data acquisition module, and calculate the electromagnetic brake coil risk monitoring index of each monitoring sub-area of ​​the electromagnetic brake operation cycle according to the electromagnetic brake coil data acquisition unit; The electromagnetic brake coil data processing module is specifically: Step S01: extract the coil temperature and ambient temperature of each monitoring sub-area during the electromagnetic brake operation cycle, according to the formula: Get the temperature risk diagnosis level, where MT i It is expressed as the temperature risk diagnosis degree of the ith monitoring sub-area, xt i It is represented as the coil temperature of the ith monitoring sub-area, xh i It is represented as the ambient temperature of the ith monitoring sub-area, and e is represented as a natural constant; Step S02: The calculation formula of the electromagnetic brake coil risk monitoring index is: where β i It is expressed as the electromagnetic brake coil risk monitoring index of the i-th monitoring sub-area, MT i It is expressed as the temperature risk diagnosis degree of the ith monitoring sub-area, xz i It is represented as the number of coil turns in the ith monitoring sub-area, and π is represented as a natural constant; Electromagnetic brake magnetic force data processing module: used to receive the key operating parameter information transmitted by the electromagnetic brake fault data acquisition module, and calculate the electromagnetic brake operation stability index of each monitoring sub-area of ​​the electromagnetic brake operation cycle according to the electromagnetic brake magnetic force stability data acquisition unit; The electromagnetic brake magnetic force data processing module is specifically: Step S01: Obtain the rated input current of the electromagnetic brake device, marked as el i ; Step S02: The calculation formula of the electromagnetic brake operation stability index is: where γ i It is expressed as the electromagnetic brake operation stability index of the i-th monitoring sub-area, el i It is expressed as the rated input current of the ith monitoring sub-area, cl i It is represented as the input current of the ith monitoring sub-area, cq i It is represented as the magnetic output intensity of the ith monitoring sub-area, and CQ0 is represented as the preset magnetic output intensity; Electromagnetic brake fault diagnosis and analysis module: used to obtain the electromagnetic brake vibration abnormality monitoring index, electromagnetic brake coil risk monitoring index and electromagnetic brake operation stability index of each monitoring sub-area in the electromagnetic brake operation cycle, and analyze and obtain the operation fault warning coefficient of the i+1th monitoring sub-area in the electromagnetic brake operation cycle; The calculation formula of the operation fault warning coefficient is: where θ i+1 It is expressed as the operation fault warning coefficient of the i+1th monitoring sub-area, α i It is expressed as the electromagnetic brake vibration abnormal monitoring index of the i-th monitoring sub-area, α i-1 is represented by the electromagnetic brake vibration anomaly monitoring index of the i-1th monitoring sub-area, Δα is represented by the mean value of the electromagnetic brake vibration anomaly monitoring index, β i It is expressed as the electromagnetic brake coil risk monitoring index of the i-th monitoring sub-area, β i-1 is represented by the electromagnetic brake coil risk monitoring index of the i-1th monitoring sub-area, Δβ is represented by the mean value of the electromagnetic brake coil risk monitoring index, and γ i Expressed as the electromagnetic brake operation stability index of the i-th monitoring sub-area, γ i-1 It is represented as the electromagnetic brake operation stability index of the i-1th monitoring sub-area, and Δγ is represented as the mean value of the electromagnetic brake operation stability index; Electromagnetic brake fault diagnosis and evaluation module: used to obtain the operation fault warning coefficient of the i+1th monitoring sub-area in the operation cycle of the electromagnetic brake, compare it with the preset operation fault warning coefficient, and process it.

2. The electromagnetic brake fault diagnosis system according to claim 1, characterized in that: The specific division method of the electromagnetic brake operation cycle division module is as follows: The operation cycle of the electromagnetic brake within the preset time period is obtained, and is divided into monitoring sub-areas by equal time division, and each monitoring sub-area of ​​the electromagnetic brake operation cycle is numbered 1, 2, ...i, ...n in sequence.

3. The electromagnetic brake fault diagnosis system according to claim 2, characterized in that: The electromagnetic brake fault data acquisition module is specifically: Electromagnetic brake vibration data acquisition unit: The sensor collects the vibration frequency, amplitude, and vibration speed of each monitoring sub-area during the operation period of the electromagnetic brake, which are marked as dp respectively. i 、df i 、dv i , where i = 1, 2, ... n, i represents the number of the i-th monitoring sub-area; Electromagnetic brake coil data acquisition unit: The sensor collects the number of coil turns, coil temperature, and ambient temperature of each monitoring sub-area during the operation period of the electromagnetic brake, which are marked as xz i , xt i 、xh i ; Electromagnetic brake magnetic force stability data acquisition unit: The sensor collects the magnetic output intensity and input current of each monitoring sub-area during the operation cycle of the electromagnetic brake, which are marked as cq respectively. i ,cl i .

4. The electromagnetic brake fault diagnosis system according to claim 1, characterized in that: The specific evaluation method of the electromagnetic brake fault diagnosis and evaluation module is: Obtain the operation fault warning coefficient of the i+1th monitoring sub-area of ​​the electromagnetic brake operation cycle, and compare it with the preset operation fault warning coefficient. If the operation fault warning coefficient of the i+1th monitoring sub-area of ​​the electromagnetic brake is greater than the preset operation fault warning coefficient, it indicates that there is a potential fault in the operation of the electromagnetic brake, and an alarm should be issued in time to notify relevant personnel. Otherwise, it indicates that there is no abnormality in the operation of the electromagnetic brake.

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