CN117665574B - Constant temperature servo motor testing system and method based on data identification - Google Patents
Constant temperature servo motor testing system and method based on data identification Download PDFInfo
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Abstract
The invention discloses a constant temperature servo motor test system and a constant temperature servo motor test method based on data identification, which belong to the field of electric signal test.
Description
Technical Field
The invention belongs to the field of electric signal testing, and particularly relates to a constant temperature servo motor testing system and method based on data identification.
Background
With the rapid development of the motor industry, higher requirements are put on the servo motor testing technology: on the one hand, in the development process of new products, not only the design, the technological process and the theoretical analysis of the motor are required to be researched, but also a large amount of test verification is required to be carried out on the products or prototypes so as to explore an improved path; on the other hand, as the varieties and the output of the motors are increased, the workload of routine tests is also increased continuously, a large amount of data are required to be collected and processed in test researches, working condition monitoring and automatic test systems of large-scale motors, and in the prior art, the comparison and judgment of multiple types of data in the motor operation process can not be comprehensively carried out in the servo motor test process, so that the accuracy and the judgment speed of the production quality judgment of the servo motor are reduced, and the problems in the prior art are all solved;
for example, in chinese patent application publication No. CN116593886a, a servo motor no-load test system and method are disclosed, which includes a driver, the input end of the driver is connected with an automatic power-on module and a power supply, the output end of the driver is connected with a motor, and the driver is connected with a computer upper computer through an RS232 communication interface. According to the technical scheme, the database is automatically called through code scanning, automatic model changing is achieved, the testing difficulty is reduced, the servo motor is finally automatically tested through automatic power-on, and zero position, no-load speed, no-load current average value, no-load current minimum value and no-load current maximum value of the encoder are uploaded to the database for later traceability through testing.
The problems proposed in the background art exist in the above patents: in the prior art, in the process of testing a servo motor, comparison and judgment of multiple types of data in the motor operation process cannot be comprehensively carried out, so that the accuracy and the judgment speed of the production quality judgment of the servo motor are reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a constant temperature servo motor test system and a constant temperature servo motor test method based on data identification.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a constant temperature servo motor testing method based on data identification comprises the following specific steps:
s1, installing a servo motor in a designated area of test equipment, acquiring rated safety power of the servo motor, rotating speed and torque of the rated safety power, and simultaneously acquiring safe working standard time and safe operation temperature range of the servo motor under the rated safety power;
s2, inputting rated safe power to the servo motor, acquiring rotation speed data in safe working standard time under the rated safe power of the empty-load servo motor in real time by using a rotation speed sensor, acquiring torque data in safe working standard time under the rated safe power of the empty-load servo motor by using a torque sensor, and acquiring a temperature value of the servo motor after the safe working standard time under the rated safe power of the servo motor;
s3, importing the obtained rotating speed data in the safe working standard time under the rated safe power of the servo motor into a rotating speed abnormal value calculation strategy to calculate a rotating speed abnormal value;
s4, substituting the torque data in the safety working standard time under the rated safety power of the obtained servo motor into a torque outlier calculation strategy to calculate a torque outlier;
S5, substituting the obtained rotating speed abnormal value, torque abnormal value, temperature value after the operation safety working standard time of the rated safety power of the servo motor and the temperature range of the safety operation into an overall abnormal value calculation strategy to calculate the overall abnormal value of the servo motor, comparing the overall abnormal value with a set overall abnormal threshold, setting the servo motor as a disqualified product if the overall abnormal value is greater than or equal to the set overall abnormal threshold, and setting the servo motor as a qualified product if the overall abnormal value is smaller than the set overall abnormal threshold.
Specifically, the step S1 includes the following specific steps:
s11, installing a servo motor to be tested in a designated area of test equipment, acquiring rated safety power of the servo motor to be tested, acquiring set rotating speed and set torque of the servo motor to be tested under the rated safety power, and storing the acquired rated safety power of the servo motor to be tested, the set rotating speed and set torque of the servo motor to be tested under the rated safety power in a first storage module, wherein the rated safety power is rated input safety power in the working process of the servo motor to be tested;
s12, acquiring the safe working standard time and the safe operation temperature range of the servo motor to be tested under the rated safe power, and storing the safe working standard time and the safe operation temperature range in a second storage module, wherein the safe working standard time is the qualified working stable time of the servo motor to be tested under the rated safe power;
Specifically, the S2 includes the following specific contents:
s21, carrying out no-load test on the servo motor to be tested, inputting rated safety power into the servo motor to be tested, enabling the servo motor to be tested to work, acquiring rotation speed data in a safety working standard time of the no-load servo motor under the rated safety power in real time by using a rotation speed sensor, and drawing a rotation speed change curve of the no-load servo motor under the rated safety power in the safety working standard time;
s22, torque data in safe working standard time of the empty load servo motor under rated safe power are obtained in real time by using a torque sensor, a torque change curve of the empty load servo motor under the rated safe power in the safe working standard time is drawn, and meanwhile, a temperature value of the servo motor after the safe working standard time of rated safe power is obtained by using a temperature sensor;
specifically, the rotational speed abnormal value calculation strategy of S3 includes the following specific steps:
s31, extracting a rotating speed change curve of the no-load servo motor under rated safety power in a safety working standard time, simultaneously obtaining a set rotating speed of the servo motor to be tested under the rated safety power, and substituting the set rotating speed into a first rotating speed abnormal coefficient calculation formula to calculate a first rotating speed abnormal coefficient, wherein the first rotating speed abnormal coefficient calculation formula is as follows:
Wherein->For the rotational speed of the idle servo motor at time t at rated safety power, < >>For the set rotating speed of the servo motor to be tested under the rated safety power, T is the safety working standard time duration, < >>Is a time integral;
s32, acquiring a set rotating speed of the servo motor to be tested under the rated safety power, simultaneously calculating an average value of rotating speeds of the no-load servo motor under the rated safety power in the safety working standard time, and substituting the average value into a second rotating speed abnormal coefficient calculation formula to calculate a second rotating speed abnormal coefficient, wherein the second rotating speed abnormal coefficient calculation formula is as follows:s is the average value of the rotating speeds of the idle servo motor under rated safety power in the safety working standard time;
s33, substituting the calculated first rotating speed abnormal coefficient and the second rotating speed abnormal coefficient into a rotating speed abnormal value calculation formula to calculate a rotating speed abnormal value, wherein the rotating speed abnormal value calculation formula is as follows:wherein->For the first rotation speed anomaly coefficient duty ratio, +.>Is the second rotating speed abnormal coefficient duty ratio, wherein +.>。
Specifically, the specific content of the torque outlier calculation strategy in S4 includes the following specific steps:
s41, extracting a torque change curve of the no-load servo motor under rated safety power in a safety working standard time, simultaneously obtaining set torque of the servo motor to be tested under the rated safety power, substituting the set torque into a first torque anomaly coefficient calculation formula to calculate a first torque anomaly coefficient, wherein the calculation formula of the first torque anomaly coefficient is as follows:
Wherein->For the rotational speed torque of the no-load servo motor at time t under the rated safety power, +.>Setting torque of the servo motor to be tested under rated safety power;
s42, acquiring set torque of the servo motor to be tested under rated safety power, simultaneously calculating an average value of torque of the no-load servo motor under the rated safety power in the safety working standard time, substituting the average value into a second torque abnormal coefficient calculation formula to calculate a second rotating speed abnormal coefficient, wherein the second torque abnormal coefficient calculation formula is as follows:wherein z is the average value of the torque of the idle servo motor under rated safety power in the safety working standard time;
s43, substituting the calculated first torque abnormal coefficient and the second torque abnormal coefficient into a rotating speed abnormal value calculation formula to calculate a torque abnormal value, wherein the torque abnormal value calculation formula is as follows:wherein->For the first torque anomaly coefficient duty cycle, +.>Is the second torque abnormality coefficient duty ratio, wherein +.>；
Specifically, the overall outlier calculation strategy of S5 includes the following specific steps:
s51, extracting the calculated rotating speed abnormal value and torque abnormal value, simultaneously obtaining a temperature value and a safe operation temperature range after the operation safety operation standard time of the rated safety power of the servo motor, substituting the temperature value and the safe operation temperature range into an integral abnormal value calculation formula to calculate the integral abnormal value, wherein the integral abnormal value calculation formula is as follows: Wherein, the method comprises the steps of, wherein,is the rotation speed abnormal value duty ratio coefficient, +.>For the torque outlier duty ratio coefficient, exp () is the power of e,>for the temperature value of the servo motor after the standard time of operation safety operation of rated safety power, +.>Maximum value of the temperature range for safe operation of the servomotor, < >>Minimum value of temperature range for safe operation of servo motor,/->Closest to the temperature range for safe operation of the servomotor>Wherein%>；
S52, comparing the overall abnormal value with a set overall abnormal threshold, if the overall abnormal value is greater than or equal to the set overall abnormal threshold, setting the servo motor as a disqualified product, and if the overall abnormal value is less than the set overall abnormal threshold, setting the servo motor as a qualified product;
what is needed here is that、/>、/>、/>、/>、/>And the value mode of the overall abnormal threshold is as follows: taking 5000 groups of produced servo motors, adopting 500 experts in the field to judge the qualification of the servo motors, distinguishing the qualification from the disqualification of the servo motors, calculating the overall abnormal values of the servo motors, and importing the overall abnormal values of the servo motors and the judging results into fitting software to output the best value meeting the judging accuracy >、/>、/>、、/>、/>And the value of the overall abnormal threshold;
the constant temperature servo motor test system based on data identification is realized based on the constant temperature servo motor test method based on data identification, and comprises a set data acquisition module, an experimental data extraction module, a rotating speed abnormal value calculation module, a torque abnormal value calculation module, an overall abnormal value calculation module, a data comparison module and a control module, wherein the set data acquisition module is used for installing a servo motor in a designated area of test equipment, acquiring rated safe power of the servo motor and rotating speed and torque of the rated safe power, simultaneously acquiring safe working standard time and safe operation temperature range of the servo motor under the rated safe power, the experimental data extraction module is used for inputting the rated safe power into the servo motor, acquiring rotating speed data in the safe working standard time of an empty servo motor under the rated safe power in real time by using a rotating speed sensor, acquiring torque data in the safe working standard time of the empty servo motor under the rated safe power in real time by using the torque sensor, simultaneously acquiring a temperature value after the safe operation standard time of the rated safe power of the servo motor, and the rotating speed abnormal value calculation module is used for guiding the acquired rotating speed data in the strategy to the abnormal rotating speed calculation standard value under the safe operation standard time of the servo motor.
Specifically, the torque outlier calculation module is used for substituting the obtained torque data in the safe working standard time under the rated safe power of the servo motor into a torque outlier calculation strategy to calculate the torque outlier, the integral outlier calculation module is used for substituting the obtained rotating speed outlier, the torque outlier, the temperature value after the safe working standard time of the rated safe power of the servo motor and the temperature range of safe operation into the integral outlier calculation strategy to calculate the integral outlier of the servo motor, and the data comparison module is used for comparing the integral outlier with a set integral outlier threshold, if the integral outlier is larger than or equal to the set integral outlier threshold, the servo motor is set as an unqualified product, and if the integral outlier is smaller than the set integral outlier threshold, the servo motor is set as a qualified product.
Specifically, the control module is used for controlling the operation of the setting data acquisition module, the experimental data extraction module, the rotating speed abnormal value calculation module, the torque abnormal value calculation module, the overall abnormal value calculation module and the data comparison module.
An electronic device, comprising: a processor and a memory, wherein the memory stores a computer program for the processor to call;
The processor executes the constant temperature servo motor testing method based on data identification by calling the computer program stored in the memory.
A computer readable storage medium storing instructions that, when executed on a computer, cause the computer to perform a method of testing a constant temperature servo motor based on data identification as described above.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, a servo motor is arranged in a designated area of test equipment, rated safe power of the servo motor and rotating speed and torque of the rated safe power are obtained, meanwhile, the safe working standard time and the safe operating temperature range of the servo motor under the rated safe power are obtained, the rated safe power is input to the servo motor, a rotating speed sensor is used for acquiring rotating speed data in the safe working standard time of the empty servo motor under the rated safe power in real time, a torque sensor is used for acquiring torque data in the safe working standard time of the empty servo motor under the rated safe power in real time, meanwhile, the temperature value of the servo motor after the safe working standard time is obtained, the acquired rotating speed data in the safe working standard time of the servo motor under the rated safe power is imported into a rotating speed abnormal value calculation strategy, the torque data in the acquired safe working standard time of the servo motor are substituted into the torque abnormal value calculation strategy, the obtained rotating speed abnormal value, the torque abnormal value, the temperature value and the safe operating temperature range of the servo motor under the rated safe working standard time are substituted into the torque abnormal value calculation strategy, and the overall judging quality is improved by comparing the obtained rotating speed abnormal value with the calculated abnormal value of the safe working standard time of the servo motor with the safe working standard time, and the overall judging quality is accurately judged by comparing the whole production quality with the whole judging quality.
Drawings
FIG. 1 is a flow chart of a constant temperature servo motor test method based on data identification;
FIG. 2 is a schematic diagram of an overall framework of a constant temperature servo motor test system based on data identification.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
Referring to fig. 1, an embodiment of the present invention is provided: a constant temperature servo motor testing method based on data identification comprises the following specific steps:
s1, installing a servo motor in a designated area of test equipment, acquiring rated safety power of the servo motor, rotating speed and torque of the rated safety power, and simultaneously acquiring safe working standard time and safe operation temperature range of the servo motor under the rated safety power;
in this embodiment, it should be noted that S1 includes the following specific steps:
s11, installing a servo motor to be tested in a designated area of test equipment, acquiring rated safety power of the servo motor to be tested, acquiring set rotating speed and set torque of the servo motor to be tested under the rated safety power, and storing the acquired rated safety power of the servo motor to be tested, the set rotating speed and set torque of the servo motor to be tested under the rated safety power in a first storage module, wherein the rated safety power is rated input safety power in the working process of the servo motor to be tested;
S12, acquiring the safe working standard time and the safe operation temperature range of the servo motor to be tested under the rated safe power, and storing the safe working standard time and the safe operation temperature range in a second storage module, wherein the safe working standard time is the qualified working stable time of the servo motor to be tested under the rated safe power;
s2, inputting rated safe power to the servo motor, acquiring rotation speed data in safe working standard time under the rated safe power of the empty-load servo motor in real time by using a rotation speed sensor, acquiring torque data in safe working standard time under the rated safe power of the empty-load servo motor by using a torque sensor, and acquiring a temperature value of the servo motor after the safe working standard time under the rated safe power of the servo motor;
in this embodiment, it should be noted that S2 includes the following specific contents:
s21, carrying out no-load test on the servo motor to be tested, inputting rated safety power into the servo motor to be tested, enabling the servo motor to be tested to work, acquiring rotation speed data in a safety working standard time of the no-load servo motor under the rated safety power in real time by using a rotation speed sensor, and drawing a rotation speed change curve of the no-load servo motor under the rated safety power in the safety working standard time;
S22, torque data in safe working standard time of the empty load servo motor under rated safe power are obtained in real time by using a torque sensor, a torque change curve of the empty load servo motor under the rated safe power in the safe working standard time is drawn, and meanwhile, a temperature value of the servo motor after the safe working standard time of rated safe power is obtained by using a temperature sensor;
the following is an example of a Python program that uses a torque sensor and a temperature sensor to acquire data in real time and plot a torque change curve:
import time
import matplotlib.pyplot as plt
from matplotlib.animation import FuncAnimation
# analog torque sensor data acquisition
def get_torque():
# data acquisition procedure where random number is used instead of actual Torque sensor
return random.randint(0, 100)
# analog temperature sensor data acquisition
def get_temperature():
# data acquisition procedure where random number is used instead of actual temperature sensor
return random.randint(20, 50)
# setting parameters
rated_power=5000# rated safety power
safe_work_time=3600# safe working standard time (unit: seconds)
start_time=time.time () # records program start time
torque_data= [ ] # stores torque data
time_data= [ ] # stores time data
temperature_data= [ ] # stores temperature data
# real-time acquisition and recording of data
while (time.time() - start_time) < safe_work_time:
torque = get_torque()
temperature = get_temperature()
torque_data.append(torque)
time_data.append(time.time() - start_time)
temperature_data.append(temperature)
time sleep (0.1) # data are acquired every 0.1 seconds
# draw torque change curve
plt.figure(figsize=(10, 6))
plt.plot(time_data, torque_data, label='Torque')
plt.xlabel('Time (s)')
plt.ylabel('Torque')
plt.title('Torque Variation')
plt.legend()
plt.show()
# shows the temperature value after the standard time of operation safety work
print("Temperature after safe work time:", temperature_data[-1])
The code is just an example, the specific torque sensor and temperature sensor data acquisition process needs to be realized according to the actual hardware equipment and communication protocol, and in addition, a 'matplotlib' library is used in the program to draw a torque change curve;
s3, importing the obtained rotating speed data in the safe working standard time under the rated safe power of the servo motor into a rotating speed abnormal value calculation strategy to calculate a rotating speed abnormal value;
in this embodiment, it should be noted that the calculation strategy of the abnormal rotation speed value of S3 includes the following specific steps:
s31, extracting a rotating speed change curve of the no-load servo motor under rated safety power in a safety working standard time, simultaneously obtaining a set rotating speed of the servo motor to be tested under the rated safety power, and substituting the set rotating speed into a first rotating speed abnormal coefficient calculation formula to calculate a first rotating speed abnormal coefficient, wherein the first rotating speed abnormal coefficient calculation formula is as follows:wherein->For the rotational speed of the idle servo motor at time t at rated safety power, < >>The set rotating speed of the servo motor to be tested under the rated safety power is set, T is the safety working standard time duration, and +. >Is a time integral;
s32, acquiring a set rotating speed of the servo motor to be tested under the rated safety power, simultaneously calculating an average value of rotating speeds of the no-load servo motor under the rated safety power in the safety working standard time, and substituting the average value into a second rotating speed abnormal coefficient calculation formula to calculate a second rotating speed abnormal coefficient, wherein the second rotating speed abnormal coefficient calculation formula is as follows:s is the average value of the rotating speeds of the idle servo motor under rated safety power in the safety working standard time;
s33, substituting the calculated first rotating speed abnormal coefficient and the second rotating speed abnormal coefficient into a rotating speed abnormal value calculation formula to calculate a rotating speed abnormal value, wherein the rotating speed abnormal value calculation formula is as follows:wherein->For the first rotation speed anomaly coefficient duty ratio, +.>Is the second rotating speed abnormal coefficient duty ratio, wherein +.>；
S4, substituting the torque data in the safety working standard time under the rated safety power of the obtained servo motor into a torque outlier calculation strategy to calculate a torque outlier;
in this embodiment, it should be noted that, the specific content of the torque outlier calculation strategy in S4 includes the following specific steps:
s41, extracting a torque change curve of the no-load servo motor under rated safety power in a safety working standard time, simultaneously obtaining set torque of the servo motor to be tested under the rated safety power, substituting the set torque into a first torque anomaly coefficient calculation formula to calculate a first torque anomaly coefficient, wherein the calculation formula of the first torque anomaly coefficient is as follows: Wherein->For the rotational speed torque of the no-load servo motor at time t under the rated safety power, +.>Setting torque of the servo motor to be tested under rated safety power;
s42, acquiring set torque of the servo motor to be tested under rated safety power, simultaneously calculating an average value of torque of the no-load servo motor under the rated safety power in the safety working standard time, substituting the average value into a second torque abnormal coefficient calculation formula to calculate a second rotating speed abnormal coefficient, wherein the second torque abnormal coefficient calculation formula is as follows:wherein z is the average value of the torque of the idle servo motor under rated safety power in the safety working standard time;
s43, substituting the calculated first torque abnormal coefficient and the second torque abnormal coefficient into a rotating speed abnormal value calculation formula to calculate a torque abnormal value, wherein the torque abnormal value calculation formula is as follows:wherein, the method comprises the steps of, wherein,for the first torque anomaly coefficient duty cycle, +.>Is the second torque abnormality coefficient duty ratio, wherein +.>；
S5, substituting the obtained rotating speed abnormal value, torque abnormal value, temperature value after the operation safety working standard time of the rated safety power of the servo motor and the temperature range of the safety operation into an overall abnormal value calculation strategy to calculate the overall abnormal value of the servo motor, comparing the overall abnormal value with a set overall abnormal threshold, setting the servo motor as a disqualified product if the overall abnormal value is greater than or equal to the set overall abnormal threshold, and setting the servo motor as a qualified product if the overall abnormal value is less than the set overall abnormal threshold;
In this embodiment, it should be noted that the overall outlier calculation strategy of S5 includes the following specific steps:
s51, extracting the calculated rotating speed abnormal value and torque abnormal value, simultaneously obtaining a temperature value and a safe operation temperature range after the operation safety operation standard time of the rated safety power of the servo motor, substituting the temperature value and the safe operation temperature range into an integral abnormal value calculation formula to calculate the integral abnormal value, wherein the integral abnormal value calculation formula is as follows:wherein, the method comprises the steps of, wherein,is the rotation speed abnormal value duty ratio coefficient, +.>For the torque outlier duty ratio coefficient, exp () is the power of e,>temperature after operation safety working standard time for rated safety power of servo motorMetric value->Maximum value of the temperature range for safe operation of the servomotor, < >>Minimum value of temperature range for safe operation of servo motor,/->Closest to the temperature range for safe operation of the servomotor>Wherein%>；
S52, comparing the overall abnormal value with a set overall abnormal threshold, if the overall abnormal value is greater than or equal to the set overall abnormal threshold, setting the servo motor as a disqualified product, and if the overall abnormal value is less than the set overall abnormal threshold, setting the servo motor as a qualified product;
What is needed here is that、/>、/>、/>、/>、/>And the value mode of the overall abnormal threshold is as follows: 5000 groups of produced servo motors are adopted, and 500 experts in the field are adopted to judge the qualification of the servo motorsBreaking, distinguishing the qualified servo motors from the unqualified servo motors, calculating the overall abnormal values of the servo motors, importing the overall abnormal values of the servo motors and the judging results into fitting software, and outputting the best value meeting the judging accuracy>、/>、/>、、/>、/>And the value of the overall abnormal threshold;
according to the embodiment, the servo motor is arranged in a designated area of test equipment, rated safe power of the servo motor and rotating speed and torque of the rated safe power are obtained, meanwhile, the safe operation standard time and the safe operation temperature range of the servo motor under the rated safe power are obtained, the rated safe power is input to the servo motor, the rotating speed data in the safe operation standard time of the empty-load servo motor under the rated safe power are obtained in real time by using a rotating speed sensor, the torque data in the safe operation standard time of the empty-load servo motor under the rated safe power are obtained in real time by using a torque sensor, meanwhile, the temperature value of the servo motor under the rated safe operation standard time is obtained, the rotating speed data in the obtained safe operation standard time of the servo motor under the rated safe operation standard time are imported into a rotating speed abnormal value calculation strategy, the obtained rotating speed abnormal value is substituted into the torque abnormal value calculation strategy, the obtained rotating speed abnormal value, the temperature value of the servo motor under the safe operation standard time and the safe operation temperature range of the servo motor under the rated operation standard time are substituted into the torque abnormal value calculation strategy, and the overall quality is judged to be more than the rated value, and the overall quality is judged to be more than the whole, and the overall quality is judged.
Example 2
The constant temperature servo motor test system based on data identification is realized based on the constant temperature servo motor test method based on data identification, and comprises a set data acquisition module, an experimental data extraction module, a rotating speed abnormal value calculation module, a torque abnormal value calculation module, an overall abnormal value calculation module, a data comparison module and a control module, wherein the set data acquisition module is used for installing a servo motor in a designated area of test equipment, acquiring rated safe power and rotating speed and torque of the rated safe power of the servo motor, simultaneously acquiring safe working standard time and safe operation temperature range of the servo motor under the rated safe power, the experimental data extraction module is used for inputting the rated safe power into the servo motor, acquiring rotating speed data in the safe working standard time of an empty servo motor under the rated safe power in real time by using a rotating speed sensor, acquiring the torque data in the safe working standard time of the empty servo motor under the rated safe power in real time by using the torque sensor, simultaneously acquiring the temperature value after the safe operation standard time of the rated safe power of the servo motor, and simultaneously guiding the acquired rotating speed abnormal value calculation module into a strategy for calculating the rotating speed abnormal value in the safe operation standard time of the servo motor; the torque abnormal value calculation module is used for substituting the obtained torque data in the safe working standard time of the rated safe power of the servo motor into a torque abnormal value calculation strategy to calculate a torque abnormal value, the integral abnormal value calculation module is used for substituting the obtained rotating speed abnormal value, the torque abnormal value, the temperature value after the safe working standard time of the rated safe power of the servo motor and the temperature range of safe operation into an integral abnormal value calculation strategy to calculate the integral abnormal value of the servo motor, the data comparison module is used for comparing the integral abnormal value with a set integral abnormal threshold, if the integral abnormal value is larger than or equal to the set integral abnormal threshold, the servo motor is set as an unqualified product, and if the integral abnormal value is smaller than the set integral abnormal threshold, the servo motor is set as a qualified product; the control module is used for controlling the operation of the set data acquisition module, the experimental data extraction module, the rotating speed abnormal value calculation module, the torque abnormal value calculation module, the overall abnormal value calculation module and the data comparison module.
Example 3
The present embodiment provides an electronic device including: a processor and a memory, wherein the memory stores a computer program for the processor to call;
the processor executes the constant temperature servo motor testing method based on data identification by calling the computer program stored in the memory.
The electronic device may have a relatively large difference due to different configurations or performances, and may include one or more processors (Central Processing Units, CPU) and one or more memories, where at least one computer program is stored in the memories, and the computer program is loaded and executed by the processors to implement a method for testing a constant temperature servo motor based on data identification provided in the above method embodiments. The electronic device can also include other components for implementing the functions of the device, for example, the electronic device can also have wired or wireless network interfaces, input-output interfaces, and the like, for inputting and outputting data. The present embodiment is not described herein.
Example 4
The present embodiment proposes a computer-readable storage medium having stored thereon an erasable computer program;
When the computer program runs on the computer equipment, the computer equipment is caused to execute the constant temperature servo motor testing method based on the data identification.
For example, the computer readable storage medium can be Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), compact disk Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM), magnetic tape, floppy disk, optical data storage device, etc.
It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.
It should be understood that determining B from a does not mean determining B from a alone, but can also determine B from a and/or other information.
The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the processes or functions in accordance with embodiments of the present invention are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by way of wired or/and wireless networks from one website site, computer, server, or data center to another. Computer readable storage media can be any available media that can be accessed by a computer or data storage devices, such as servers, data centers, etc. that contain one or more collections of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.
In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the partitioning of units is merely one way of partitioning, and there may be additional ways of partitioning in actual implementation, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (7)
1. The constant temperature servo motor testing method based on data identification is characterized by comprising the following specific steps of:
s1, installing a servo motor in a designated area of test equipment, acquiring rated safety power of the servo motor, rotating speed and torque of the rated safety power, and simultaneously acquiring safe working standard time and safe operation temperature range of the servo motor under the rated safety power;
s2, inputting rated safe power to the servo motor, acquiring rotation speed data in safe working standard time under the rated safe power of the empty-load servo motor in real time by using a rotation speed sensor, acquiring torque data in safe working standard time under the rated safe power of the empty-load servo motor by using a torque sensor, and acquiring a temperature value of the servo motor after the safe working standard time under the rated safe power of the servo motor;
S3, importing the obtained rotating speed data in the safe working standard time under the rated safe power of the servo motor into a rotating speed abnormal value calculation strategy to calculate a rotating speed abnormal value;
the rotating speed abnormal value calculation strategy of the S3 comprises the following specific steps:
s31, extracting a rotating speed change curve of the no-load servo motor under rated safety power in a safety working standard time, simultaneously obtaining a set rotating speed of the servo motor to be tested under the rated safety power, and substituting the set rotating speed into a first rotating speed abnormal coefficient calculation formula to calculate a first rotating speed abnormal coefficient, wherein the first rotating speed abnormal coefficient calculation formula is as follows:wherein->For the rotational speed of the idle servo motor at time t at rated safety power, < >>For the set rotating speed of the servo motor to be tested under the rated safety power, T is the safety working standard time duration, < >>Is a time integral;
s32, acquiring a set rotating speed of the servo motor to be tested under the rated safety power, simultaneously calculating an average value of rotating speeds of the no-load servo motor under the rated safety power in the safety working standard time, and substituting the average value into a second rotating speed abnormal coefficient calculation formula to calculate a second rotating speed abnormal coefficient, wherein the second rotating speed abnormal coefficient calculation formula is as follows: S is the average value of the rotating speeds of the idle servo motor under rated safety power in the safety working standard time;
s33, substituting the calculated first rotating speed abnormal coefficient and the second rotating speed abnormal coefficient into a rotating speed abnormal value calculation formula to calculate a rotating speed abnormal value, wherein the rotating speed abnormal value calculation formula is as follows:wherein->For the first rotation speed anomaly coefficient duty ratio, +.>Is the second rotating speed abnormal coefficient duty ratio, wherein +.>；
S4, substituting the torque data in the safety working standard time under the rated safety power of the obtained servo motor into a torque outlier calculation strategy to calculate a torque outlier;
the specific content of the torque abnormal value calculation strategy in the S4 comprises the following specific steps:
s41, extracting a torque change curve of the no-load servo motor under rated safety power in a safety working standard time, simultaneously obtaining set torque of the servo motor to be tested under the rated safety power, substituting the set torque into a first torque anomaly coefficient calculation formula to calculate a first torque anomaly coefficient, wherein the calculation formula of the first torque anomaly coefficient is as follows:wherein->For the rotational speed torque of the no-load servo motor at time t under the rated safety power, +.>Setting torque of the servo motor to be tested under rated safety power;
S42, acquiring the set torque of the servo motor to be tested under the rated safety power, simultaneously calculating the average value of the torque of the no-load servo motor under the rated safety power within the safe working standard time, and substituting the average value into a second torque abnormal coefficient calculation formula to calculateThe second rotation speed abnormal coefficient and the second torque abnormal coefficient are calculated according to the following formula:wherein z is the average value of the torque of the idle servo motor under rated safety power in the safety working standard time;
s43, substituting the calculated first torque abnormal coefficient and the second torque abnormal coefficient into a rotating speed abnormal value calculation formula to calculate a torque abnormal value, wherein the torque abnormal value calculation formula is as follows:wherein (1)>For the first torque anomaly coefficient duty cycle, +.>Is the second torque abnormality coefficient duty ratio, wherein +.>，
S5, substituting the obtained rotating speed abnormal value, torque abnormal value, temperature value after the operation safety working standard time of the rated safety power of the servo motor and the temperature range of the safety operation into an overall abnormal value calculation strategy to calculate the overall abnormal value of the servo motor, comparing the overall abnormal value with a set overall abnormal threshold value, and judging a qualified product;
the overall outlier calculation strategy of S5 comprises the following specific steps:
S51, extracting the calculated rotating speed abnormal value and torque abnormal value, simultaneously obtaining a temperature value and a safe operation temperature range after the operation safety operation standard time of the rated safety power of the servo motor, substituting the temperature value and the safe operation temperature range into an integral abnormal value calculation formula to calculate the integral abnormal value, wherein the integral abnormal value calculation formula is as follows:wherein->Is the rotation speed abnormal value duty ratio coefficient, +.>For the torque outlier duty ratio coefficient, exp () is the power of e,>for the temperature value of the servo motor after the standard time of operation safety operation of rated safety power, +.>Maximum value of the temperature range for safe operation of the servomotor, < >>Minimum value of temperature range for safe operation of servo motor,/->Closest to the temperature range for safe operation of the servomotor>Wherein%>；
S52, comparing the overall abnormal value with a set overall abnormal threshold, if the overall abnormal value is greater than or equal to the set overall abnormal threshold, setting the servo motor as a disqualified product, and if the overall abnormal value is less than the set overall abnormal threshold, setting the servo motor as a qualified product.
2. The method for testing a constant temperature servo motor based on data identification according to claim 1, wherein the step S1 comprises the following specific steps:
S11, installing a servo motor to be tested in a designated area of test equipment, acquiring rated safety power of the servo motor to be tested, acquiring set rotating speed and set torque of the servo motor to be tested under the rated safety power, and storing the acquired rated safety power of the servo motor to be tested, the set rotating speed and set torque of the servo motor to be tested under the rated safety power in a first storage module;
s12, acquiring the safe working standard time and the safe operation temperature range of the servo motor to be tested under the rated safe power, and storing the safe working standard time and the safe operation temperature range in the second storage module.
3. The method for testing the constant temperature servo motor based on data identification according to claim 2, wherein the step S2 comprises the following specific contents:
s21, carrying out no-load test on the servo motor to be tested, inputting rated safety power into the servo motor to be tested, enabling the servo motor to be tested to work, acquiring rotation speed data in a safety working standard time of the no-load servo motor under the rated safety power in real time by using a rotation speed sensor, and drawing a rotation speed change curve of the no-load servo motor under the rated safety power in the safety working standard time;
S22, torque data in safe working standard time of the empty load servo motor under rated safe power is obtained in real time by using a torque sensor, a torque change curve of the empty load servo motor under the rated safe power in the safe working standard time is drawn, and meanwhile, a temperature value of the servo motor after the safe working standard time of rated safe power is obtained by using a temperature sensor.
4. The constant temperature servo motor test system based on data identification is realized based on the constant temperature servo motor test method based on data identification according to any one of claims 1-3, and is characterized by comprising a set data acquisition module, an experimental data extraction module, a rotating speed abnormal value calculation module, a torque abnormal value calculation module, an overall abnormal value calculation module, a data comparison module and a control module, wherein the set data acquisition module is used for installing a servo motor in a designated area of test equipment, acquiring the rated safe power of the servo motor, the rotating speed and torque of the rated safe power, simultaneously acquiring the safe operation standard time of the servo motor under the rated safe power and the temperature range of safe operation of the servo motor, the experimental data extraction module is used for inputting the rated safe power into the servo motor, acquiring the rotating speed data in the safe operation standard time of an empty servo motor under the rated safe power by using a rotating speed sensor in real time, acquiring the torque data in the safe operation standard time of the empty servo motor under the rated safe power by using the torque sensor, simultaneously acquiring the temperature value after the safe operation standard time of the servo motor, and the rotating speed abnormal value calculation module is used for calculating the rotating speed data in the safe operation standard time under the rated power of the empty servo motor.
5. The constant temperature servo motor test system based on data identification as claimed in claim 4, wherein the torque outlier calculation module is used for substituting the obtained torque data in the safe operation standard time under the rated safe power of the servo motor into the torque outlier calculation strategy to calculate the torque outlier, the overall outlier calculation module is used for substituting the obtained rotating speed outlier, the torque outlier, the temperature value after the safe operation standard time of the rated safe power of the servo motor and the safe operation temperature range into the overall outlier calculation strategy to calculate the overall outlier of the servo motor, the data comparison module is used for comparing the overall outlier with the set overall outlier threshold, if the overall outlier is larger than or equal to the set overall outlier threshold, the servo motor is set as an unqualified product, and if the overall outlier is smaller than the set overall outlier threshold, the control module is used for controlling the operation of the set data acquisition module, the experimental data extraction module, the rotating speed outlier calculation module, the overall outlier calculation module and the data comparison module.
6. An electronic device, comprising: a processor and a memory, wherein the memory stores a computer program for the processor to call;
a method for testing a constant temperature servo motor based on data recognition according to any one of claims 1-3, characterized in that the processor executes a computer program stored in the memory.
7. A computer readable storage medium storing instructions which, when executed on a computer, cause the computer to perform a method of testing a constant temperature servo motor based on data identification as claimed in any one of claims 1 to 3.
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| CN110907823A (en) * | 2019-11-04 | 2020-03-24 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Real-time acquisition system and method for servo motor test data |
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| CN114781552A (en) * | 2022-06-17 | 2022-07-22 | 深圳硅山技术有限公司 | Motor performance testing method, device, equipment and storage medium |
| CN116298871A (en) * | 2023-03-16 | 2023-06-23 | 广东亿嘉和科技有限公司 | Servo motor testing method, device and system |
| CN117318297A (en) * | 2023-09-27 | 2023-12-29 | 北京华源技术有限公司 | Alarm threshold setting method, system, equipment and medium based on state monitoring |
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| CN110907823A (en) * | 2019-11-04 | 2020-03-24 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Real-time acquisition system and method for servo motor test data |
| CN112051830A (en) * | 2020-08-27 | 2020-12-08 | 深圳市显控科技股份有限公司 | Servo driver aging test method, system, device and storage medium |
| CN114781552A (en) * | 2022-06-17 | 2022-07-22 | 深圳硅山技术有限公司 | Motor performance testing method, device, equipment and storage medium |
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