CN116481582A - Precision detection system of incremental photoelectric encoder - Google Patents
Precision detection system of incremental photoelectric encoder Download PDFInfo
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Abstract
The invention relates to the technical field of precision detection of photoelectric encoders, in particular to a precision detection system of an incremental photoelectric encoder, which comprises a code wheel detection and analysis module, an environment detection and analysis module, an operation test module, a precision analysis module, a display terminal and a cloud storage library. On the one hand, by detecting and analyzing the temperature stable state and the power stable state corresponding to the photoelectric encoder, the scientific basis of the corresponding precision analysis of the photoelectric encoder is enhanced, errors in the precision measurement result of the photoelectric encoder caused by the power stability and the temperature stability are avoided, and the reliability and the effectiveness of the precision detection analysis result of the photoelectric encoder are greatly improved. On the other hand, by detecting the rotation speed of the code wheel of the photoelectric encoder and testing the running speed of the code wheel, the uncertainty and the unilateral performance of the speed detection analysis result are avoided to a great extent, and the persuasion of the speed detection result of the photoelectric encoder is greatly improved.
Description
Technical Field
The invention relates to the technical field of precision detection of photoelectric encoders, in particular to a precision detection system of an incremental photoelectric encoder.
Background
Along with the continuous development of the numerical control technology towards high speed and high precision, the numerical control machine tool has higher and higher requirements on the position detection precision of the photoelectric encoder. The photoelectric encoder takes the high-precision metering grating as a detection element, so that the digital measurement of the position and the speed can be realized, and meanwhile, the photoelectric encoder has the characteristics of wide measurement range, reliable use, easy maintenance and the like, and therefore, the detection of the precision of the photoelectric encoder is particularly important.
At present, the precision of the photoelectric encoder is detected and analyzed through a single layer, so that the detection dimension and the analysis result of the photoelectric encoder have one-sided property and singleness, and the comprehensive and deep analysis of the precision of the photoelectric encoder is not facilitated.
At present, when the precision of the photoelectric encoder is detected and analyzed, the analysis of the power stability and the environmental stability corresponding to the photoelectric encoder is often ignored, so that the analysis result is not accurate enough, a certain error exists, and the representativeness of the analysis result is not strong.
Disclosure of Invention
The invention aims to provide an incremental photoelectric encoder precision detection system.
The aim of the invention can be achieved by the following technical scheme: an incremental photoelectric encoder accuracy detection system, comprising:
the code wheel detection analysis module is used for detecting the light transmission quality and the installation state of the code wheel corresponding to the photoelectric encoder and analyzing the basic condition evaluation coefficient of the code wheel corresponding to the photoelectric encoder;
the environment detection analysis module is used for detecting the environment state of each detection time point in each detection time period corresponding to the photoelectric encoder, and analyzing the environment influence coefficient of each detection time period corresponding to the photoelectric encoder;
the operation testing module is used for detecting the rotation speed of the code wheel of the photoelectric encoder in each detection time period and testing the operation speed of the photoelectric encoder corresponding to each detection time period;
the precision analysis module is used for analyzing the precision evaluation coefficients of the photoelectric encoder corresponding to each detection time period;
the display terminal is used for correspondingly displaying the precision evaluation coefficients of the photoelectric encoder corresponding to each detection time period;
the cloud storage library is used for storing the reference gap width corresponding to the code disc, storing the allowable temperature difference, the allowable current difference and the allowable voltage difference, storing the pore number corresponding to the code disc of the photoelectric encoder and storing the weight corresponding to the trolley.
As a further improvement of the invention, the light transmission quality and the installation state of the corresponding code disc of the photoelectric encoder are detected, and the specific detection steps are as follows:
201: acquiring an apparent image of the code disc corresponding to the photoelectric encoder through the intelligent high-definition camera to obtain the apparent image of the code disc corresponding to the photoelectric encoder, and extracting the width of each gap on the code disc corresponding to the photoelectric encoder from the apparent image;
202: the method comprises the steps of acquiring an installation image of a code disc corresponding to a photoelectric encoder through an intelligent high-definition camera, obtaining the installation image of the code disc corresponding to the photoelectric encoder, extracting a plane of the code disc corresponding to the photoelectric encoder from the installation image, and obtaining an included angle between the plane of the code disc corresponding to the photoelectric encoder and a set bottom plane to be used as an inclination angle of the code disc corresponding to the photoelectric encoder.
As a further improvement of the invention, the basic condition evaluation coefficients of the corresponding code wheel of the photoelectric encoder are analyzed, and the specific analysis process is as follows:
301: the width of each gap on the code disk corresponding to the photoelectric encoder is recorded asI is the number of each slit,and extracting the maximum gap width and the minimum gap width from the above, which are respectively marked as +.>And->Meanwhile, the average gap width of the photoelectric encoder corresponding to the code disc is calculated and recorded as +.>；
302: calculating to obtain the light transmission gap evaluation index of the photoelectric encoder corresponding to the code disc；
303: the inclination angle of the code disc corresponding to the photoelectric encoder is recorded asAnd obtaining the installation state evaluation index of the photoelectric encoder corresponding to the code disc through calculation>；
304: according to the formulaCalculating basic condition evaluation coefficients of the corresponding code wheel of the photoelectric encoder, < ->Basic condition evaluation coefficient expressed as a corresponding code wheel of an optoelectronic encoder,/for>The set light transmission gap evaluation index and the set coefficient factors corresponding to the installation state evaluation index are respectively expressed.
As a further improvement of the present invention, the environmental state of each detection time point in each detection time period corresponding to the photoelectric encoder is detected, and the specific detection mode is as follows:
detecting the temperature of each detection time point in each detection time period corresponding to the photoelectric encoder through a temperature sensor to obtain the temperature of each detection time point in each detection time period corresponding to the photoelectric encoder, and recording asF is denoted by the number of each detection period, < >>J is denoted by the number of each detection time point, < >>；
The current and the voltage of each detection time point in each detection time period corresponding to the photoelectric encoder are respectively detected through a universal meter, and the current and the voltage of each detection time point in each detection time period corresponding to the photoelectric encoder are respectively recorded asAnd->。
As a further improvement of the present invention, the environmental impact coefficient of the photoelectric encoder corresponding to each detection period is analyzed, and the specific analysis process is as follows:
501: extracting maximum temperature, minimum temperature and median temperature from the temperature of each detection time point in each detection time period corresponding to the photoelectric encoder, respectively recording as、/>And->；
502: according to the formula
Calculating a temperature stability evaluation index of the photoelectric encoder corresponding to each detection time period, wherein in the formula (1),represented as lightThe reference temperature of the electric encoder corresponding to the f-th detection period is +.>Temperature stability evaluation index expressed as photoelectric encoder corresponding to the f-th detection period, +.>Expressed as natural constant>Represented as allowable temperature difference stored in cloud repository,/->Respectively representing the index factors corresponding to the temperature difference, the maximum temperature difference, the minimum temperature difference and the median temperature difference of the set detection time points;
503: extracting maximum current and minimum current from current of each detection time point in each detection time period corresponding to the photoelectric encoder, and respectively recording asAnd->Extracting maximum voltage and minimum voltage from the voltages of the photoelectric encoder corresponding to each detection time point in each detection time period, respectively recorded as +.>And->；
504: calculating to obtain power stability evaluation index of photoelectric encoder corresponding to each detection time period；
505: according to the formulaCalculating the correspondence of the photoelectric encoderEnvironmental influence coefficient for each detection period, +.>An environmental influence coefficient expressed as an optical-electrical encoder corresponding to the f-th detection period, +.>The set temperature stability evaluation index and the set power stability evaluation index are respectively expressed as coefficient factors corresponding to the set temperature stability evaluation index and the set power stability evaluation index.
As a further improvement of the present invention, the rotation speed of the code wheel of the photoelectric encoder in each detection period is detected by the following specific detection modes:
counting the number of holes of the photoelectric encoder, through which infrared rays pass in each detection time period, and recording asExtracting the pore number of a photoelectric encoder corresponding to a code disc from a cloud storage library, and marking the pore number as +.>Counting the duration of each detection time period, and recording as +.>；
Calculating the rotation speed of the code wheel of the photoelectric encoder corresponding to each detection time period through a speed calculation formula。
As a further improvement of the invention, the running speed of the photoelectric encoder corresponding to each detection time period is tested, and the specific test mode is as follows:
the photoelectric encoder drives the trolley to carry out a moving distance test in each detection time period to obtain the moving distance of the trolley in each detection time period corresponding to the photoelectric encoder, and the moving distance is recorded as；
Calculating photoelectric encoder through speed calculation formulaOperating speed corresponding to each detection period。
As a further improvement of the present invention, the precision evaluation coefficients of the photoelectric encoder corresponding to each detection period are analyzed, and the specific analysis process is as follows:
801: extracting the weight corresponding to the trolley from the cloud storage library, matching the weight with the speed influence factors corresponding to the set weights to obtain the speed influence factors corresponding to the trolley, and recording the speed influence factors as；
802: according to the formulaCalculating the influence proportion coefficient of the photoelectric encoder corresponding to each detection time period, < >>Expressed as an influence scaling factor of the photoelectric encoder for the f-th detection period,respectively representing the set basic condition evaluation coefficient, the environment influence coefficient and the scale factor corresponding to the speed influence factor;
803: matching the influence proportion coefficient corresponding to each detection time period of the photoelectric encoder with the influence proportion coefficient corresponding to each set influence level to obtain the influence level corresponding to each detection time period of the photoelectric encoder, matching the influence level with the speed allowable difference corresponding to each set influence level to obtain the speed allowable difference corresponding to each detection time period of the photoelectric encoder, and recording as；
804: according to the formulaCalculating the precision evaluation of the photoelectric encoder corresponding to each detection time periodCoefficient of->The precision evaluation coefficient expressed as the photoelectric encoder corresponding to the f-th detection period, +.>Control speed of the photoelectric encoder expressed as preset,/-or->The precision conversion factors corresponding to the set code wheel rotation speed and the running speed are respectively expressed.
The invention has the beneficial effects that:
the invention not only makes up the defect of the prior art of analyzing the single-sided precision of the photoelectric encoder by detecting and analyzing the light transmission quality and the installation state of the corresponding code disc of the photoelectric encoder, but also intuitively reflects the corresponding basic state of the photoelectric encoder to a certain extent, thereby providing powerful data support for the subsequent analysis of the precision of the photoelectric encoder.
According to the invention, through detecting and analyzing the temperature stable state and the power stable state corresponding to the photoelectric encoder, the analysis of the power stability and the temperature stability corresponding to the photoelectric encoder is realized, the scientific basis of the analysis of the precision corresponding to the photoelectric encoder is further enhanced, the error of the precision measurement result of the photoelectric encoder caused by the power stability and the temperature stability is avoided, and the reliability and the effectiveness of the precision detection analysis result of the photoelectric encoder are greatly improved.
According to the invention, the rotation speed of the corresponding code wheel of the photoelectric encoder is detected, and meanwhile, the running speed of the photoelectric encoder is tested, so that the uncertainty and one-sided performance of a speed detection analysis result are avoided to a great extent, and the persuasion of the speed detection result of the photoelectric encoder is greatly improved.
According to the invention, the basic condition evaluation coefficient, the environment influence coefficient and the speed influence factor corresponding to the photoelectric encoder are comprehensively analyzed, so that the precision evaluation coefficient corresponding to the photoelectric encoder is analyzed based on the basic condition evaluation coefficient, the environment influence coefficient and the speed influence factor, the representativeness, the scientificity and the comprehensiveness of the precision analysis result corresponding to the photoelectric encoder are greatly improved, the precision detection result corresponding to the photoelectric encoder is intuitively reflected, and the photoelectric encoder is convenient to carry out corresponding adjustment subsequently.
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The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a system block diagram of the present invention.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention discloses an incremental photoelectric encoder precision detection system, which comprises a code disc detection and analysis module, an environment detection and analysis module, an operation test module, a precision analysis module, a display terminal and a cloud storage library.
The code wheel detection and analysis module is respectively connected with the precision analysis module and the cloud storage, the environment detection and analysis module is respectively connected with the precision analysis module and the cloud storage, the operation test module is respectively connected with the precision analysis module and the cloud storage, and the precision analysis module is respectively connected with the display terminal and the cloud storage.
The code wheel detection and analysis module is used for detecting the light transmission quality and the installation state of the code wheel corresponding to the photoelectric encoder, and the specific detection steps are as follows:
201: the apparent image of the code disc corresponding to the photoelectric encoder is acquired through the intelligent high-definition camera, the apparent image of the code disc corresponding to the photoelectric encoder is obtained, and the width of each gap on the code disc corresponding to the photoelectric encoder is extracted from the apparent image.
202: the method comprises the steps of acquiring an installation image of a code disc corresponding to a photoelectric encoder through an intelligent high-definition camera, obtaining the installation image of the code disc corresponding to the photoelectric encoder, extracting a plane of the code disc corresponding to the photoelectric encoder from the installation image, and obtaining an included angle between the plane of the code disc corresponding to the photoelectric encoder and a set bottom plane to be used as an inclination angle of the code disc corresponding to the photoelectric encoder.
The code wheel detection analysis module is also used for analyzing basic condition evaluation coefficients of the code wheel corresponding to the photoelectric encoder, and the specific analysis process is as follows:
301: the width of each gap on the code disk corresponding to the photoelectric encoder is recorded asI is the number of each slit,and extracting the maximum gap width and the minimum gap width from the above, which are respectively marked as +.>And->Meanwhile, the average gap width of the photoelectric encoder corresponding to the code disc is calculated and recorded as +.>。
302: according to the formula
Calculating the light transmission gap evaluation index of the photoelectric encoder corresponding to the code disc,light transmission gap evaluation index expressed as a corresponding code wheel of an optoelectronic encoder, < >>Expressed as the corresponding reference slot width of the stored code wheel,/->Respectively indicated as set slitsThe width, the maximum gap width and the minimum gap width.
303: the inclination angle of the code disc corresponding to the photoelectric encoder is recorded asAccording to the formula->Calculating an installation state evaluation index of a code disc corresponding to the photoelectric encoder>An installation state evaluation index expressed as a corresponding code wheel of the photoelectric encoder, < >>Expressed as a set code wheel reference tilt angle, +.>Indicated as the set allowable tilt angle difference.
304: according to the formulaCalculating basic condition evaluation coefficients of the corresponding code wheel of the photoelectric encoder, < ->Basic condition evaluation coefficient expressed as a corresponding code wheel of an optoelectronic encoder,/for>The set light transmission gap evaluation index and the set coefficient factors corresponding to the installation state evaluation index are respectively expressed.
In a specific embodiment, the invention not only makes up the defect of the prior art of analyzing the accuracy of the photoelectric encoder by detecting and analyzing the light transmission quality and the installation state of the corresponding code wheel of the photoelectric encoder, but also intuitively reflects the corresponding basic state of the photoelectric encoder to a certain extent, thereby providing powerful data support for the subsequent analysis of the accuracy of the photoelectric encoder.
The environment detection analysis module is used for detecting the environment state of the photoelectric encoder corresponding to each detection time point in each detection time period, and the specific detection mode is as follows:
detecting the temperature of each detection time point in each detection time period corresponding to the photoelectric encoder through a temperature sensor to obtain the temperature of each detection time point in each detection time period corresponding to the photoelectric encoder, and recording asF is denoted by the number of each detection period, < >>J is denoted by the number of each detection time point, < >>。
The current and the voltage of each detection time point in each detection time period corresponding to the photoelectric encoder are respectively detected through a universal meter, and the current and the voltage of each detection time point in each detection time period corresponding to the photoelectric encoder are respectively recorded asAnd->。
The environment detection analysis module analyzes the environment influence coefficient of the photoelectric encoder corresponding to each detection time period, and the specific analysis process is as follows:
501: extracting maximum temperature, minimum temperature and median temperature from the temperature of each detection time point in each detection time period corresponding to the photoelectric encoder, respectively recording as、/>And->The method comprises the steps of carrying out a first treatment on the surface of the Wherein the method comprises the steps ofThe median temperature is specifically: the temperatures of the photoelectric encoder corresponding to the detection time points in the detection time periods are sequentially arranged in order from large to small, and the median temperature in the detection time periods is extracted from the temperatures to be used as the median temperature.
502: according to the formula
Calculating a temperature stability evaluation index of the photoelectric encoder corresponding to each detection time period, wherein in the formula (1),a reference temperature expressed as a reference temperature of the photoelectric encoder corresponding to the f-th detection period, in the formula (2)>Temperature stability evaluation index expressed as photoelectric encoder corresponding to the f-th detection period, +.>Expressed as natural constant>Represented as allowable temperature difference stored in cloud repository,/->Respectively expressed as the index factors corresponding to the set temperature difference at the detection time point, the maximum temperature difference, the minimum temperature difference and the median temperature difference.
503: extracting maximum current and minimum current from current of each detection time point in each detection time period corresponding to the photoelectric encoder, and respectively recording asAnd->Extracting maximum voltage and maximum voltage from voltages of the photoelectric encoder corresponding to each detection time point in each detection time periodSmall voltages, respectively denoted->And->。
504: according to the formula
Calculating a power stability evaluation index of the photoelectric encoder corresponding to each detection time period,a current stability evaluation index expressed as photoelectric encoder corresponding to the f-th detection period,/>Expressed as stored allowed current difference, +.>Respectively expressed as the influence factors corresponding to the set extreme current difference, maximum current difference and minimum current difference,/respectively>Voltage stability evaluation index expressed as photoelectric encoder corresponding to the f-th detection period, +.>Represented as a stored allowable voltage difference,respectively expressed as the set influence factors corresponding to the extreme voltage difference, the maximum voltage difference and the minimum voltage difference,power stability evaluation index expressed as photoelectric encoder corresponding to the f-th detection period, +.>The current stability evaluation index and the voltage stability evaluation index are respectively expressed as set influence factors corresponding to the current stability evaluation index and the voltage stability evaluation index.
505: according to the formulaCalculating the environmental influence coefficient of the photoelectric encoder corresponding to each detection time period, < >>An environmental influence coefficient expressed as an optical-electrical encoder corresponding to the f-th detection period, +.>The set temperature stability evaluation index and the set power stability evaluation index are respectively expressed as coefficient factors corresponding to the set temperature stability evaluation index and the set power stability evaluation index.
In a specific embodiment, the invention realizes the analysis of the power stability and the temperature stability corresponding to the photoelectric encoder by detecting and analyzing the temperature stability and the power stability corresponding to the photoelectric encoder, further strengthens the scientific basis of the analysis of the precision corresponding to the photoelectric encoder, avoids the error of the precision measurement result of the photoelectric encoder caused by the power stability and the temperature stability, and greatly improves the reliability and the effectiveness of the precision detection analysis result of the photoelectric encoder.
The operation test module is used for detecting the rotation speed of the code wheel of the photoelectric encoder in each detection time period, and the specific detection mode is as follows:
counting the number of holes of the photoelectric encoder, through which infrared rays pass in each detection time period, and recording asExtracting the pore number of a photoelectric encoder corresponding to a code disc from a cloud storage library, and marking the pore number as +.>Counting the duration of each detection time period, and recording as +.>。
According to the formulaCalculating the rotation speed of the code wheel of the photoelectric encoder corresponding to each detection time period,the encoder rotational speed is represented as the photoelectric encoder corresponding to the f-th detection period.
The operation test module is used for testing the operation speed of the photoelectric encoder corresponding to each detection time period, and the specific test mode is as follows:
the photoelectric encoder drives the trolley to carry out a moving distance test in each detection time period to obtain the moving distance of the trolley in each detection time period corresponding to the photoelectric encoder, and the moving distance is recorded as。
According to the formulaCalculating the running speed of the photoelectric encoder corresponding to each detection time period, < >>Expressed as the operating speed of the photoelectric encoder for the f-th detection period.
In a specific embodiment, the invention detects the rotation speed of the corresponding code wheel of the photoelectric encoder, and simultaneously tests the running speed of the photoelectric encoder, thereby avoiding the uncertainty and the unilateral performance of the speed detection analysis result to a great extent and greatly improving the convincing power of the speed detection result of the photoelectric encoder.
The precision analysis module is used for analyzing the precision evaluation coefficients of the photoelectric encoder corresponding to each detection time period, and the specific analysis process is as follows:
801: extracting the weight corresponding to the trolley from the cloud storage library, matching the weight with the speed influence factors corresponding to the set weights to obtain the speed influence factors corresponding to the trolley, and recordingIs that。
802: according to the formulaCalculating the influence proportion coefficient of the photoelectric encoder corresponding to each detection time period, < >>Expressed as an influence scaling factor of the photoelectric encoder for the f-th detection period,respectively expressed as set basic condition evaluation coefficients, environment influence coefficients and corresponding scale factors of speed influence factors.
803: matching the influence proportion coefficient corresponding to each detection time period of the photoelectric encoder with the influence proportion coefficient corresponding to each set influence level to obtain the influence level corresponding to each detection time period of the photoelectric encoder, matching the influence level with the speed allowable difference corresponding to each set influence level to obtain the speed allowable difference corresponding to each detection time period of the photoelectric encoder, and recording as。
804: according to the formulaCalculating the precision evaluation coefficient of the photoelectric encoder corresponding to each detection time period, < >>The precision evaluation coefficient expressed as the photoelectric encoder corresponding to the f-th detection period, +.>Control speed of the photoelectric encoder expressed as preset,/-or->Respectively expressed as setAnd the precision conversion factors corresponding to the rotation speed and the running speed of the code wheel.
In a specific embodiment, the invention analyzes the precision evaluation coefficient corresponding to the photoelectric encoder by comprehensively analyzing the basic condition evaluation coefficient, the environment influence coefficient and the speed influence factor corresponding to the photoelectric encoder, thereby greatly improving the representativeness, scientificity and comprehensiveness of the precision analysis result corresponding to the photoelectric encoder, intuitively reflecting the precision detection result corresponding to the photoelectric encoder and facilitating the subsequent corresponding adjustment of the photoelectric encoder.
And the display terminal is used for correspondingly displaying the precision evaluation coefficients of the photoelectric encoder corresponding to each detection time period.
The cloud storage library is used for storing the reference gap width corresponding to the code disc, storing the allowable temperature difference, the allowable current difference and the allowable voltage difference, storing the pore number corresponding to the code disc of the photoelectric encoder and storing the weight corresponding to the trolley.
The foregoing is merely illustrative of the structures of this invention and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the invention or from the scope of the invention as defined in the accompanying claims.
Claims (8)
1. An incremental photoelectric encoder accuracy detection system, comprising:
the code wheel detection analysis module is used for detecting the light transmission quality and the installation state of the code wheel corresponding to the photoelectric encoder and analyzing the basic condition evaluation coefficient of the code wheel corresponding to the photoelectric encoder;
the environment detection analysis module is used for detecting the environment state of each detection time point in each detection time period corresponding to the photoelectric encoder, and analyzing the environment influence coefficient of each detection time period corresponding to the photoelectric encoder;
the operation testing module is used for detecting the rotation speed of the code wheel of the photoelectric encoder in each detection time period and testing the operation speed of the photoelectric encoder corresponding to each detection time period;
the precision analysis module is used for analyzing the precision evaluation coefficients of the photoelectric encoder corresponding to each detection time period;
the display terminal is used for correspondingly displaying the precision evaluation coefficients of the photoelectric encoder corresponding to each detection time period;
the cloud storage library is used for storing the reference gap width corresponding to the code disc, storing the allowable temperature difference, the allowable current difference and the allowable voltage difference, storing the pore number corresponding to the code disc of the photoelectric encoder and storing the weight corresponding to the trolley.
2. The incremental photoelectric encoder precision detection system according to claim 1, wherein the detection of the light transmission quality and the installation state of the photoelectric encoder corresponding to the code wheel comprises the following specific detection steps:
201: acquiring an apparent image of the code disc corresponding to the photoelectric encoder through the intelligent high-definition camera to obtain the apparent image of the code disc corresponding to the photoelectric encoder, and extracting the width of each gap on the code disc corresponding to the photoelectric encoder from the apparent image;
202: the method comprises the steps of acquiring an installation image of a code disc corresponding to a photoelectric encoder through an intelligent high-definition camera, obtaining the installation image of the code disc corresponding to the photoelectric encoder, extracting a plane of the code disc corresponding to the photoelectric encoder from the installation image, and obtaining an included angle between the plane of the code disc corresponding to the photoelectric encoder and a set bottom plane to be used as an inclination angle of the code disc corresponding to the photoelectric encoder.
3. The incremental photoelectric encoder precision detection system according to claim 1, wherein the basic condition evaluation coefficients of the photoelectric encoder corresponding to the code wheel are analyzed, and the specific analysis process is as follows:
301: the width of each gap on the code disk corresponding to the photoelectric encoder is recorded asI is the number of each slit,and extracting the maximum gap width and the minimum gap width from the above, which are respectively marked as +.>And->Meanwhile, the average gap width of the photoelectric encoder corresponding to the code disc is calculated and recorded as +.>；
302: calculating to obtain the light transmission gap evaluation index of the photoelectric encoder corresponding to the code disc；
303: the inclination angle of the code disc corresponding to the photoelectric encoder is recorded asAnd obtaining the installation state evaluation index of the photoelectric encoder corresponding to the code disc through calculation>；
304: according to the formulaCalculating basic condition evaluation coefficients of the corresponding code wheel of the photoelectric encoder, < ->Basic condition evaluation coefficient expressed as a corresponding code wheel of an optoelectronic encoder,/for>Respectively expressed as a set light transmission gap evaluation index and an installation state evaluationAnd the index corresponds to a coefficient factor.
4. The incremental photoelectric encoder precision detection system according to claim 3, wherein the detecting method for detecting the environmental state of the photoelectric encoder corresponding to each detection time point in each detection time period is as follows:
detecting the temperature of each detection time point in each detection time period corresponding to the photoelectric encoder through a temperature sensor to obtain the temperature of each detection time point in each detection time period corresponding to the photoelectric encoder, and recording asF is denoted by the number of each detection period, < >>J is denoted by the number of each detection time point, < >>；
The current and the voltage of each detection time point in each detection time period corresponding to the photoelectric encoder are respectively detected through a universal meter, and the current and the voltage of each detection time point in each detection time period corresponding to the photoelectric encoder are respectively recorded asAnd。
5. the incremental photoelectric encoder precision detection system according to claim 4, wherein the analysis of the environmental impact coefficient of the photoelectric encoder corresponding to each detection time period comprises the following specific analysis processes:
501: extracting maximum temperature, minimum temperature and median temperature from the temperature of each detection time point in each detection time period corresponding to the photoelectric encoder, respectively recording as、/>And->；
502: according to the formula
Calculating a temperature stability evaluation index of the photoelectric encoder corresponding to each detection time period, wherein in the formula (1),a reference temperature expressed as a reference temperature of the photoelectric encoder corresponding to the f-th detection period, in the formula (2)>Temperature stability evaluation index expressed as photoelectric encoder corresponding to the f-th detection period, +.>Expressed as natural constant>Represented as allowable temperature difference stored in cloud repository,/->Respectively representing the index factors corresponding to the temperature difference, the maximum temperature difference, the minimum temperature difference and the median temperature difference of the set detection time points;
503: extracting maximum current and minimum current from current of each detection time point in each detection time period corresponding to the photoelectric encoder, and respectively recording asAnd->Extracting maximum voltage and minimum voltage from the voltages of the photoelectric encoder corresponding to each detection time point in each detection time period, respectively recorded as +.>And->；
504: calculating to obtain power stability evaluation index of photoelectric encoder corresponding to each detection time period；
505: according to the formulaCalculating the environmental influence coefficient of the photoelectric encoder corresponding to each detection time period, < >>An environmental influence coefficient expressed as an optical-electrical encoder corresponding to the f-th detection period, +.>The set temperature stability evaluation index and the set power stability evaluation index are respectively expressed as coefficient factors corresponding to the set temperature stability evaluation index and the set power stability evaluation index.
6. The incremental photoelectric encoder precision detection system according to claim 5, wherein the detection method for detecting the rotation speed of the code wheel of the photoelectric encoder in each detection time period is as follows:
counting the number of holes of the photoelectric encoder, through which infrared rays pass in each detection time period, and recording asExtracting the pore number of a photoelectric encoder corresponding to a code disc from a cloud storage library, and marking the pore number as +.>Counting the duration of each detection time period, and recording as +.>；
Calculating the rotation speed of the code wheel of the photoelectric encoder corresponding to each detection time period through a speed calculation formula。
7. The incremental photoelectric encoder accuracy detecting system according to claim 6, wherein the photoelectric encoder is tested at a running speed corresponding to each detecting time period, and the specific testing mode is as follows:
the photoelectric encoder drives the trolley to carry out a moving distance test in each detection time period to obtain the moving distance of the trolley in each detection time period corresponding to the photoelectric encoder, and the moving distance is recorded as；
Calculating the running speed of the photoelectric encoder corresponding to each detection time period through a speed calculation formula。
8. The incremental photoelectric encoder precision detection system according to claim 7, wherein the precision evaluation coefficients of the photoelectric encoder corresponding to each detection time period are analyzed, and a specific analysis process is as follows:
801: extracting weight corresponding to the trolley from the cloud storage library and influencing the speed corresponding to each set weightThe factors are matched to obtain the corresponding speed influence factors of the trolley, which are recorded as；
802: according to the formulaCalculating the influence proportion coefficient of the photoelectric encoder corresponding to each detection time period, < >>Expressed as an influence scaling factor of the photoelectric encoder for the f-th detection period,respectively representing the set basic condition evaluation coefficient, the environment influence coefficient and the scale factor corresponding to the speed influence factor;
803: matching the influence proportion coefficient corresponding to each detection time period of the photoelectric encoder with the influence proportion coefficient corresponding to each set influence level to obtain the influence level corresponding to each detection time period of the photoelectric encoder, matching the influence level with the speed allowable difference corresponding to each set influence level to obtain the speed allowable difference corresponding to each detection time period of the photoelectric encoder, and recording as；
804: according to the formulaCalculating the precision evaluation coefficient of the photoelectric encoder corresponding to each detection time period, < >>The precision evaluation coefficient expressed as the photoelectric encoder corresponding to the f-th detection period, +.>Represented as preset photoelectricityControl speed of encoder, +.>The precision conversion factors corresponding to the set code wheel rotation speed and the running speed are respectively expressed.
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