WO2023277387A1

WO2023277387A1 - Device predictive maintenance method using settting of constant speed of peak

Info

Publication number: WO2023277387A1
Application number: PCT/KR2022/008262
Authority: WO
Inventors: 이영규
Original assignee: 주식회사 아이티공간
Priority date: 2021-07-01
Filing date: 2022-06-12
Publication date: 2023-01-05
Also published as: KR102477707B1

Abstract

The present invention relates to a device predictive maintenance method using setting of the constant speed of a peak, comprising: an information collection step (S10) of measuring information in which the size of energy consumed when a device performs one work process in a driving state changes over time, and collecting the information by setting, as a peak value, a value having the largest energy size in the measured change information about the size of energy; a constant speed section collection step (S20) of arranging over time, on the basis of the information collected in the information collection step (S10), the peak value of each work process repeatedly performed by the device, and repeatedly setting and collecting peak constant speed sections of a fixed unit time on the basis of the arranged peak values; an average value collection step (S30) of repeatedly collecting average values for the peak values included in the peak constant speed sections; a critical value setting step (S40) of setting a critical value for the average values of the peak constant speed sections; and a detection step (S50) of repeatedly setting and collecting the peak constant speed sections of the fixed unit time on the basis of peak values for a work process repeatedly performed in the real-time driving state of the device, and inducing inspection management of the device by providing an alarm if the average value for the peak values included in the collected peak constant speed sections exceeds the peak critical value.

Description

Predictive maintenance method of equipment through constant velocity definition for peak

The present invention relates to a method for predictive maintenance of a device through constant speed definition for a peak, and more particularly, to extract a peak value based on a change in energy required to perform a work process while the device is in an operating state, and extract the peak value After setting the threshold for the peak average value of the peak constant speed section and the threshold for the peak slope through the peak constant speed section that is set based on the collected peak value, the peak average value of the peak constant speed section collected in the real-time operating state of the device compared with the threshold for the peak average value and the threshold for the peak slope, an alarm is issued when the conditions for suspecting an abnormality of the device are satisfied, leading to maintenance and replacement of the device at the right time to prevent damage caused by device failure. It relates to a predictive maintenance method for equipment through constant rate definition for peaks that can prevent huge losses in advance.

In general, stable operation of various devices used for the automation process of facilities is very important.

For example, dozens or hundreds of devices are installed in facilities of a large-scale production plant to continuously produce products while interlocking with each other. situation may arise.

In this case, not only equipment repair costs due to downtime due to equipment failure, but also huge losses due to wasted operating costs and business effects while the equipment is stopped.

According to recent data from the Ministry of Employment and Labor and the Korea Occupational Safety and Health Administration, the number of casualties due to industrial safety accidents annually is estimated to be around 100,000, and when converted into costs, it is estimated that an annual loss of 18 trillion won is occurring.

As a way to avoid such unexpected downtime costs, it is urgent to introduce a predictive maintenance system. Although efforts are already being made to improve the problems under the name of predictive maintenance, it is necessary to develop a higher level predictive maintenance method for more efficient predictive maintenance.

The present invention has been proposed to solve the various problems described above, and its purpose is to extract a peak value based on a change in the amount of energy required to perform a work process while the device is in an operating state, and to extract the extracted peak value After setting the threshold for the peak average value of the peak constant speed section and the threshold for the peak slope through the collected peak constant speed section, the peak average value of the peak constant speed section collected in the real-time operating state of the device is the peak average value In contrast to the threshold value for and the threshold value for peak slope, an alarm is issued when an abnormality condition of the device is satisfied, leading to maintenance and replacement of the device at the right time, thereby preventing huge losses due to device failure. It is to provide a predictive maintenance method for devices through constant rate definition for peaks that can be prevented in advance.

In addition, various detection conditions are presented in order to efficiently search for abnormal symptoms occurring in the device, and when the detection conditions are satisfied, the device is detected as abnormal, so that abnormal symptoms generated in the device can be detected very precisely and effectively. It is an object of the present invention to provide a method for predictive maintenance of a device through a constant rate definition for a peak capable of securing excellent reliability for detection results.

The predictive maintenance method of a device through constant speed definition for a peak according to the present invention measures information in which the amount of energy required to perform one work process in a device operating state changes with the passage of time, and the measured energy An information collection step (S10) of collecting the largest value of energy in the size change information as a peak value, and based on the information collected in the information collection step (S10) Repeatedly performed by the device A constant speed section collection step (S20) of arranging the peak values of each work process according to the lapse of time, and repeatedly setting and collecting a peak constant speed section of a certain unit time based on the arranged peak value, and in the peak constant speed section An average value collection step (S30) of repeatedly collecting the average value of the included peak values, a threshold value setting step (S40) of setting a threshold value for the average value of the peak constant speed section, and repeatedly in the real-time driving state of the device Based on the peak value for the work process to be performed, the peak constant speed section of a certain unit time is repeatedly set and collected, and when the average value of the peak values included in the collected peak constant speed section exceeds the peak threshold value, an alarm is issued. It is characterized by consisting of a detection step (S50) for inducing inspection management of.

In addition, the constant speed section collection step (S20) is an arrangement process (S21) of arranging the peak values of each work process repeatedly performed in the device based on the information collected in the information collection step (S10) over time. And, a setting process (S22) of setting the upper limit value and lower limit value for setting the peak constant speed section and the unit time of the peak constant speed section, and the peak value arranged according to the lapse of time does not exceed the upper limit value and the lower limit value during the set unit time It is characterized in that it consists of a section collection process (S23) of setting the non-peak section as a peak constant speed section and repeatedly collecting the peak constant speed section.

In addition, in the information collection step (S10), the constant speed section collection step (S20), and the average value collection step (S30), the average values of the peak constant speed sections repeatedly set and collected are arranged according to the lapse of time, and the arranged average values are mutually After connecting with a straight line, further comprising a peak slope information collection step (S60) of collecting peak slope information through the slope of the straight line,

In the threshold value setting step (S40), a peak slope threshold value for the average value of the peak constant speed section is set,

In the detection step (S50), the average value of the peak constant speed section set and collected based on the peak value of the work process repeatedly performed in the real-time driving state of the device is arranged according to the lapse of time, and the arranged peak constant speed section The peak slope value is extracted by connecting the average values of to each other with a straight line, and when the extracted peak slope value exceeds the threshold value of the peak slope, an alert is issued to induce inspection and management of the device.

In addition, the starting point where the section starts and the end point where the section ends in the peak constant speed section repeatedly set and collected in the information collection step (S10) and the constant speed section collection step (S20) instead of the average value collection step (S30). And a random measurement value collection step (S70) of selecting any one point from among arbitrary points in the section and repeatedly collecting values for points selected from a plurality of the repeatedly collected peak constant speed sections as random measurement values,

In the threshold value setting step (S40), an arbitrary threshold value is set for an arbitrary measurement value collected in a peak constant speed section,

In the detection step (S50), a random point selected in the random measurement value collection step (S70) in the peak constant speed section set and collected based on the peak value for the work process repeatedly performed in the real-time driving state of the device It is characterized in that a measurement value is extracted, and an alarm is issued when the extracted arbitrary measurement value exceeds the predetermined threshold value, leading to inspection and management of the device.

In addition, the random measurement values of the peak constant speed section, which are repeatedly collected in the random measurement value collection step (S70), are arranged according to the lapse of time, and after connecting the arranged random measurement values with a straight line, the straight line Further comprising a random gradient information collection step (S80) of collecting random gradient information through the gradient,

In the threshold value setting step (S40), a threshold value of an arbitrary slope for an arbitrary measurement value of a peak constant speed section is set,

In the detection step (S50), arbitrary measured values for the peak constant speed section set based on the peak value for the work process repeatedly performed in the real-time driving state of the device are arranged according to the lapse of time, and the arranged peak constant speed A random slope value is extracted by connecting arbitrary measurement values of the section with each other in a straight line, and when the extracted random slope value exceeds the threshold value of the random slope, an alarm is issued to induce inspection and management of the device.

In addition, based on the peak values collected in the information collection step (S10) and the constant speed section collection step (S20), the peak constant speed section is repeatedly set and collected,

A calculation step (S90) of setting a unit time detection section that can include at least two or more peak constant speed sections instead of the average value collection step (S30), and calculating the maximum number of peak constant speed sections that can be included in the detection section. Including more,

In the threshold value setting step (S40), a threshold number for the number of peak constant speed sections included in the detection section is set based on the maximum number of peak constant speed sections for the detection section through the calculation step (S90),

In the detection step (S50), a peak constant speed section of a certain unit time is collected based on the peak value of the work process repeatedly performed in the real-time driving state of the device, and the peak constant speed section detected within the unit time of the detection section If the number is less than the threshold number, it is characterized in that an alarm is issued to induce inspection and management of the device.

According to the method for predictive maintenance of a device through constant speed definition for a peak according to the present invention, a peak value is extracted based on a change in the amount of energy required to perform a work process while the device is in an operating state, and the extracted peak value is After setting the threshold value for the peak average value of the peak constant speed section and the threshold value for the peak slope through the peak constant speed section collected based on the setting, the peak average value of the peak constant speed section collected in the real-time operating state of the device is set as the peak average value. In contrast to the threshold value for the device and the threshold value for the peak slope, an alarm is issued when an abnormality symptom of the device is satisfied, leading to maintenance and replacement of the device at the right time, preventing huge losses due to device failure. has a preventive effect.

In addition, various detection conditions are presented in order to efficiently search for abnormal symptoms occurring in the device, and when the detection conditions are satisfied, the device is detected as abnormal, so that abnormal symptoms generated in the device can be detected very precisely and effectively. In addition, there is an effect of securing excellent reliability for the detection result.

1 is a block diagram of a method for predictive maintenance of a device through constant speed definition for a peak according to an embodiment of the present invention.

2 to 13 are diagrams for explaining a predictive maintenance method of a device through constant speed definition for the peak shown in FIG. 1;

S10. Information collection step S20. Constant speed section collection stage

S21. Arrangement process S22. Setup process

S23. Section collection process S30. Average value collection step

S40. Threshold setting step S50. detection step

S60. Peak slope information collection step S70. Random measurement value collection step

S80. Random gradient information collection step S90. Calculation stage

100. Predictive maintenance method of equipment through constant speed definition for peak

The present invention is a predictive maintenance method for equipment used in various facilities,

Measure the change information over time in the amount of energy required to perform one work process while the device is in operation, and measure the value of the largest energy in the measured energy amount change information. Based on the information collection step (S10) collected as a value and the information collected in the information collection step (S10), the peak value of each work process repeatedly performed in the device is arranged according to the lapse of time, A constant speed section collection step (S20) of repeatedly setting and collecting a peak constant speed section of a certain unit time based on the peak value and an average value collection step (S30) of repeatedly collecting the average value of the peak values included in the peak constant speed section A threshold value setting step (S40) of setting a peak threshold for the average value of the peak constant speed section and a peak constant speed section of a certain unit time based on the peak value for the work process repeatedly performed in the real-time driving state of the device. For the peak, characterized in that consisting of a detection step (S50) of setting and collecting, and alerting when the average value of the peak values included in the collected peak constant speed section exceeds the peak threshold value to induce inspection and management of the device. It relates to a method for predictive maintenance of equipment through constant speed definition.

A method for predictive maintenance of a device through constant speed definition for a peak according to a preferred embodiment of the present invention will be described in detail based on the accompanying drawings. Detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

1 to 13 show a predictive maintenance method of a device through constant velocity definition for a peak according to an embodiment of the present invention. FIG. Block diagrams of the maintenance method, FIGS. 2 to 13 each show diagrams for explaining the predictive maintenance method of the device through constant speed definition for the peak shown in FIG. 1 .

As shown in FIG. 1, the predictive maintenance method 100 of a device through constant speed definition for peaks according to an embodiment of the present invention includes an information collection step (S10), a constant speed section collection step (S20), and average value collection. It includes step S30, threshold value setting step S40, and detection step S50.

In the information collection step (S10), the amount of energy required to perform one work process in the operating state of the device measures information on the change over time, and the amount of energy is measured in the change information of the measured energy amount. This is a step of collecting the largest value as a peak value.

Normally, devices that are installed in large facilities and operate organically perform a specific work process repeatedly. At this time, the energy of the device used to perform the work process is the current (power), the frequency of the supply power, and the vibration generated by the device. , noise, etc. can optionally be used.

For example, when a device such as a puncher performing a work process of drilling holes in a material shows the energy required to perform the work process and the current supplied to the device over time, the waveform shown in FIG. 2 is shown.

At this time, the peak value is the value at which the largest current is formed as the peak value, and the peak value is collected in the information collection step (S10).

Here, in the current waveform as described above, a section in which the current value is the largest may be partitioned into a peak section, and a section in which the current value is stabilized and maintained at a constant level may be partitioned into a constant speed section. In the present invention, the peak value is designated as the largest current value in the peak section, but the effect described below can be expected even if the largest current value in the constant speed section is designated as the peak value.

In the constant speed section collection step (S20), based on the information collected in the information collection step (S10), the peak value of each work process repeatedly performed in the device is arranged according to the lapse of time, and the arranged peak value Based on this, it is a step of repeatedly setting and collecting peak constant speed sections of a certain unit time,

It consists of an arrangement process (S21), a setting process (S22), and a section collection process (S23).

The arrangement process (S21) is a process of arranging the peak value of each work process repeatedly performed in the device based on the information collected in the information collection step (S10) according to the lapse of time.

That is, as shown in FIG. 3, when the device repeatedly performs a work process, peak values can be repeatedly collected. If the collected peak values are arranged over time, as shown in FIG.

The setting process (S22) is a process of arbitrarily setting the upper and lower limit values for setting the peak constant speed section and the unit time of the peak constant speed section.

Here, the unit time of the upper limit value and the lower limit value and the peak constant speed section can be formed in various ways with appropriate values in consideration of factors such as operating conditions and usage environment of the device, and the unit time of the peak constant speed section is at least two It is set to the time that includes the above peak values, but it can be set in time units such as days, months, years, etc. at a minimum of several seconds.

The section collection process (S23) is a process of repeatedly collecting the peak constant speed section by setting a section that does not exceed the upper limit value and the lower limit value during a set unit time of the peak value arranged according to the lapse of time as a peak constant speed section.

That is, as shown in FIG. 4, if the unit time is maintained without exceeding the upper and lower limit values, the peak value is set as the peak constant speed section, and the peak constant speed section is repeated. collect settings.

At this time, if the peak value exceeds the upper limit or lower limit within the unit time, the excess portion is excluded and the peak constant speed section is again tracked and collected from the peak value next to the peak value exceeding the upper or lower limit.

Through the above process, the peak constant speed section is repeatedly set and collected based on the peak value of the work process repeatedly performed by the device.

The average value collecting step (S30) is a step of repeatedly collecting an average value of peak values included in the peak constant speed section.

That is, as shown in FIG. 5, it is a process of collecting the average value of the peak values included in the peak constant speed section repeatedly collected through the process of collecting the constant speed section (S20), and information on the average value collected in this way. is the basis for setting the threshold for the average value of the peak constant speed section in the threshold value setting step (S40) to be described later.

The threshold value setting step (S40) is a step of setting a peak threshold value for an average value of the peak constant speed section.

Here, the peak threshold value for the average value of the peak constant speed section is a value for alarming when the peak average value of the peak constant speed section abnormally increases or decreases, taking into consideration the type of device, usage environment, lifespan, size of the peak constant speed section, etc. It can be set in various numbers with values of various sizes. For example, the peak threshold for the average value is divided into an alarm threshold, a danger threshold, etc. to form various alarm levels to detect abnormal symptoms of the device. Of course you can be warned.

The detection step (S50) repeatedly sets and collects a peak constant speed section of a certain unit time based on the peak value of the work process that is repeatedly performed in the real-time driving state of the device, and collects the peaks included in the collected peak constant speed section. In this step, when the average value of the values exceeds the peak threshold value, an alarm is issued to induce inspection and management of the device.

That is, as shown in FIG. 6, the average value of the peak values of the peak constant speed section repeatedly collected in the real-time driving state of the device is the peak threshold value of the average value of the peak constant speed section set in the threshold value setting step (S40). If it does not exceed, the device is detected in a stable state, and conversely, if the average value of the peak constant speed section exceeds the peak threshold, the device is detected and alarmed in a somewhat unstable state, and abnormal signs of the device are detected in advance before a device failure occurs It is a method of inducing inspection and management of equipment, and induces to prevent economic loss that may occur when the entire operation of the facility is stopped due to a sudden failure of the equipment.

In addition, in the information collection step (S10), the constant speed section collection step (S20), and the average value collection step (S30), the average values of the peak constant speed sections repeatedly set and collected are arranged according to the lapse of time, and the arranged average values are mutually After connecting with a straight line, a peak slope information collection step (S60) of collecting peak slope information through the slope of the straight line; is further included.

That is, as shown in FIG. 5, if the average value of the peak values of the peak constant speed section is arranged according to the lapse of time and then connected with a straight line, it can be represented as shown in FIG.

At this time, the slope value of the straight line connecting the average value of the peak constant speed section can be divided into an ascending slope value (positive number) in which the slope rises and a descending slope value (negative number) in which the slope descends, but the slope value is digitized as an absolute value. to collect

Then, in the threshold value setting step (S40), a peak slope threshold value for the average value of the peak constant speed section is set.

Here, the peak slope threshold for the average value of the peak constant speed section is a value for alarming when the slope value of a straight line connecting the average value of the peak constant speed section and the average value of other adjacent peak constant speed sections is abnormally increased. In addition to setting the slope value of various sizes in consideration of the type of device, usage environment, life span, and average value of the peak constant speed section, the peak slope threshold for the average value of the peak constant speed section is set to two or more threshold values, for example For example, it is possible to set an alarm threshold value, a risk threshold value, etc. to form various alarm levels to alarm abnormal signs of the device.

Then, in the detection step (S50), the average value for the peak constant speed section set and collected based on the peak value for the work process repeatedly performed in the real-time driving state of the device is arranged over time, and the arranged The peak slope value is extracted by connecting the average values of the peak constant speed sections with each other in a straight line, and when the extracted peak slope value exceeds the threshold value of the peak slope, an alarm is issued to induce inspection and management of the device.

That is, as shown in FIG. 8 , the slope value of the straight line connecting the average values of the peak values of the peak constant speed section repeatedly collected in the real-time driving state of the device is the peak slope set in the threshold value setting step (S40). If the threshold value is not exceeded, the device is detected in a stable state, and conversely, if the slope value of the straight line connecting the average values of the peak constant speed sections exceeds the peak slope threshold value, the device is detected in a somewhat unstable state and an alarm is issued to cause the device to fail. It is a method of inducing inspection and management of equipment by detecting abnormal signs of equipment in advance before it occurs, leading to prevent economic loss that may occur due to sudden equipment failure due to overall shutdown of the facility. .

As an example, in FIG. 8 , the peak slope threshold is set to 5°, and abnormal symptoms of the device are compared and detected by comparing the slope value of a straight line connecting the average value of the real-time peak constant speed section of the device to the set peak slope threshold. it did

On the other hand, instead of the average value collection step (S30), the starting point where the section starts and the end point where the section ends in the peak constant speed section repeatedly set and collected in the information collection step (S10) and the constant speed section collection step (S20) and a random measured value collection step (S70) of selecting any one point among random points within the section and repeatedly collecting values for points selected from a plurality of peak constant speed sections that are repeatedly collected as random measured values. .

That is, as shown in FIG. 9, in the random measurement value collection step (S70), a specific point of the peak constant speed section is selected, and a random measurement value (peak value) for that point is repeatedly collected in the peak constant speed section. to obtain

A plurality of peak values (random measurement values) obtained in this way become a basis for detecting abnormal symptoms of the device.

Here, the midpoint was selected as an arbitrary point of the peak constant speed section and the peak value corresponding to the midpoint of the peak constant speed section was repeatedly collected and obtained. Of course, it is possible to select and use peak values at various points in consideration of factors such as , environment, and the like.

Then, in the threshold value setting step (S40), an arbitrary threshold value is set for an arbitrary measured value collected in the peak constant speed section.

Here, the arbitrary threshold value for the arbitrary measurement value of the peak constant speed section is a value for alarming when the peak value for an arbitrary point selected in the peak constant speed section abnormally increases or decreases. It is possible to set a variable number of values of various sizes in consideration of the life span and the size of the peak constant speed section. For example, an arbitrary threshold value for an arbitrary point in the peak constant speed section is divided into an alarm threshold value, a risk threshold value, etc. Accordingly, it is of course possible to form an alarm level in various ways to alert an abnormal symptom of the device.

Then, in the detection step (S50), an arbitrary point selected in the random measured value collection step (S70) in the peak constant speed section set and collected based on the peak value for the work process repeatedly performed in the real-time driving state of the device. A random measured value for is extracted, and when the extracted random measured value exceeds the certain threshold value, an alarm is issued to induce inspection and management of the device.

Here, an arbitrary point in the peak constant speed section collected in the real-time operating state of the device is also selected as the midpoint of the peak constant speed section selected in the random measurement value collection step (S70), and the midpoint of the peak constant speed section collected in real time. Of course, arbitrary measured values (peak values) for are extracted and collected.

That is, as shown in FIG. 10 , the peak value (random measurement value) for an arbitrary point in the peak constant speed section repeatedly collected in the real-time operating state of the device is the arbitrary threshold value set in the threshold value setting step (S40). If it does not exceed , the device is detected in a stable state, and conversely, if the peak value at any point in the peak constant speed section exceeds the arbitrary threshold, the device is detected and alarmed in a slightly unstable state in advance before a device failure occurs. It is a method that induces inspection and management of equipment by detecting abnormal signs of equipment, and induces to prevent economic loss that may occur due to sudden equipment failure due to overall shutdown of the facility.

In addition, the random measurement values of the peak constant speed section, which are repeatedly collected in the random measurement value collection step (S70), are arranged according to the lapse of time, and after connecting the arranged random measurement values with a straight line, the straight line It further includes a random tilt information collection step (S80) of collecting random tilt information through the tilt.

That is, as shown in FIG. 9 , if arbitrary measured values for a certain point of the peak constant speed section are arranged according to the lapse of time and then connected in a straight line, it can be represented as shown in FIG. 11 .

At this time, the slope value of the straight line connecting the arbitrary measured values of the peak constant speed section can be divided into an ascending slope value (positive number) in which the slope rises and a descending slope value (negative number) in which the slope descends, but both slope values are absolute values. quantified and collected.

Then, in the threshold value setting step (S40), a threshold value of an arbitrary slope for an arbitrary measured value of the peak constant speed section is set.

Here, the threshold value of the random slope for any measured value of the peak constant speed section is such that the slope value of a straight line connecting the random measured value of the peak constant speed section and the random measured value of another adjacent peak constant speed section to each other increases abnormally. As a value for alarming in case of an emergency, not only can it be set as a slope value of various sizes in consideration of the type of device, usage environment, lifespan, and arbitrary measured value of the peak constant speed section, but also arbitrary measured value of the peak constant speed section Of course, it is possible to set the threshold value of the slope by dividing it into two or more threshold values, for example, an alarm threshold value, a danger threshold value, etc., to form various alarm levels to alert an abnormal symptom of the device.

Then, in the detection step (S50), arbitrary measured values for the peak constant speed section set based on the peak value for the work process repeatedly performed in the real-time driving state of the device are arranged according to the lapse of time, and the arrangement A random slope value is extracted by connecting arbitrary measured values of the determined peak constant speed section with each other in a straight line, and when the extracted random slope value exceeds the threshold value of the random slope, an alarm is issued to induce inspection and management of the device.

That is, as shown in FIG. 12, the slope value of the straight line connecting arbitrary measured values of the peak constant speed section repeatedly collected in the real-time driving state of the device is the random slope threshold set in the threshold value setting step (S40). If it does not exceed the threshold, the device is detected in a stable state, and conversely, if the slope value of the straight line connecting arbitrary measured values of the peak constant speed section exceeds the random slope threshold, the device is detected in a slightly unstable state and an alarm is issued to prevent device failure. It is a method of inducing inspection and management of equipment by detecting abnormal signs of equipment before they occur, leading to prevention of economic loss that may occur due to sudden failure of the equipment, which may cause the overall operation of the facility to stop.

As an example, FIG. 12 shows anomalies of the device by comparing the slope value of a straight line connecting random measured values of the real-time peak constant speed section of the device to the random slope threshold set at 4 °, and the random slope threshold set in FIG. detected by comparison.

On the other hand, based on the peak values collected in the information collection step (S10) and the constant speed section collection step (S20), the peak constant speed section is repeatedly set and collected,

A calculation step (S90) of setting a unit time detection section that can include at least two or more peak constant speed sections instead of the average value collection step (S30), and calculating the maximum number of peak constant speed sections that can be included in the detection section. ; is further included.

For example, if the unit time of the peak constant speed section collected in the constant speed section collection step (S20) is 1 minute and the unit time of the detection section is set to 1 hour (60 minutes) in the calculation step (S90), the set detection The maximum number of peak constant speed sections that can be maximally detected within a unit time of the section is naturally calculated as 60.

Here, the detection section is set as a unit time that can include at least two or more peak constant speed sections. Of course there is.

Then, in the threshold value setting step (S40), a threshold number for the number of peak constant speed sections included in the detection section is set based on the maximum number of peak constant speed sections for the detection section through the calculation step (S90).

Here, the threshold number for the number of peak constant speed sections of the detection section is a threshold number for detecting abnormal symptoms of the device, and may be set to various numbers in consideration of the type of device, usage environment, life span, unit time of the detection section, etc. As described above, as an example, the peak constant speed section having a unit time of 1 minute is set to 57 as the threshold number for the number of peak constant speed sections for the detection section of 1 hour, which can include up to 60 peak constant speed sections, at this time , the threshold number set is a number set as an example.

Of course, it is possible to set the threshold number into an alarm threshold number, a risk threshold number, etc. to form various alarm levels to alert an abnormal symptom of the device.

Then, in the detection step (S50), a peak constant speed section of a certain unit time is collected based on the peak value of the work process repeatedly performed in the real-time driving state of the device, but the peak detected within the unit time of the detection section If the number of constant speed sections is less than the threshold number, an alarm is issued to induce inspection and management of the device.

As loads, damages, and deterioration are formed in normal equipment, peak values that exceed the upper or lower limit for setting the peak constant speed section often exist, and these peak values induce frequent exclusion of the set peak constant speed section. If the number of peak constant speed sections included in the detection section of unit time gradually decreases, it can be seen that the soundness (state) of the device is not good.

That is, as shown in FIG. 13, based on the peak value repeatedly collected in the real-time driving state of the device, the peak constant speed section of 1 minute unit time is repeatedly collected, but the peak constant speed section included in the detection section of 60 minute unit time unit is repeated. If the number of sections is greater than or equal to the threshold number set in the threshold value setting step (S40), the device is detected in a stable state, and conversely, if the number of peak constant speed sections included in the detection section is less than the threshold number, the device is placed in a somewhat unstable state. It is a method of inducing inspection and management of equipment by detecting signs of abnormality before equipment failure occurs by detecting and alerting. Economical loss that may occur due to sudden failure of equipment as a whole stops operation of the equipment is prevented in advance. lead to prevent

The predictive maintenance method 100 of a device through the constant speed definition for the peak of the present invention, which predicts the abnormal symptoms of the device through the above process, is based on the change in the amount of energy required to perform the work process in the operating state of the device After extracting the peak value and setting the threshold for the peak average value and peak slope of the peak constant speed section through the peak constant speed section that is set and collected based on the extracted peak value, in the real-time operating state of the device By comparing the peak average value of the collected peak-constant speed section with the threshold for peak average value and the threshold for peak slope, an alarm is issued when an abnormal symptom of the device is satisfied, so that maintenance and replacement of the device can be performed at the right time. This has the effect of preventing huge losses due to device failures in advance.

On the other hand, the predictive maintenance method 100 of a device through constant speed definition for a peak of the present invention has been described as detecting an anomaly of one device performing a work process based on various information extracted from a peak constant speed section. When multiple devices are used to perform a work process, a peak constant speed section is established for each device individually to detect abnormal symptoms of the device, or the information extracted from the peak constant speed section of each device is summed and combined. Of course, it is possible to detect abnormal symptoms of all devices performing the process together.

In addition, the predictive maintenance method 100 of the device through the constant speed definition for the peak of the present invention can be implemented through a combination of various electronic devices and programs that can collect, detect, contrast, and alarm the energy value of the device. is of course

The present invention has been described with reference to the embodiments shown in the accompanying drawings, but these are illustrative and not limited to the above-described embodiments, and those skilled in the art can make various modifications and equivalent embodiments therefrom. you will understand the point. In addition, of course, modifications by those skilled in the art are possible within a range that does not impair the spirit of the present invention. Therefore, the scope claimed in the present invention will not be determined within the scope of the detailed description, but will be limited by the claims described later and their technical spirit.

Claims

In the predictive maintenance method of equipment used in various facilities,

Measure the change information over time in the amount of energy required to perform one work process while the device is in operation, and measure the value of the largest energy in the measured energy amount change information. Information collection step (S10) to collect as a value;

Based on the information collected in the information collection step (S10), the peak value of each work process repeatedly performed in the device is arranged according to the lapse of time, and the peak constant speed section of a certain unit time is based on the arranged peak value A constant speed section collection step of repeatedly setting and collecting (S20);

An average value collection step (S30) of repeatedly collecting an average value of peak values included in the peak constant speed section;

a threshold value setting step (S40) of setting a peak threshold value for an average value of the peak constant speed section; and

Based on the peak value of the work process that is repeatedly performed in real-time operation of the device, a peak constant speed section of a certain unit time is repeatedly set and collected, and the average value of the peak values included in the collected peak constant speed section is the peak value. A predictive maintenance method for a device through constant speed definition for a peak, characterized in that it consists of a detection step (S50) of alerting when the threshold value is exceeded and inducing inspection and management of the device.
According to claim 1,

In the constant speed section collection step (S20),

An arrangement process (S21) of arranging the peak values of each work process repeatedly performed in the device according to the lapse of time based on the information collected in the information collection step (S10);

A setting process (S22) of setting the unit time of the upper and lower limit values and the peak constant speed section for setting the peak constant speed section;

A section collection process (S23) of repeatedly collecting the peak constant speed section by setting a section that does not exceed the upper limit value and the lower limit value as a peak constant speed section during a unit time in which the peak value arranged according to the lapse of time is set. A method for predictive maintenance of equipment through constant velocity definition for peaks that
According to claim 1 or 2,

In the information collection step (S10), the constant speed section collection step (S20), and the average value collection step (S30), the average values of the peak constant speed sections repeatedly set and collected are arranged over time, and the arranged average values form a straight line with each other. After connecting, further comprising a peak slope information collection step (S60) of collecting peak slope information through the slope of the straight line,

In the threshold value setting step (S40), a peak slope threshold value for the average value of the peak constant speed section is set,

In the detection step (S50), the average value of the peak constant speed section set and collected based on the peak value of the work process repeatedly performed in the real-time driving state of the device is arranged according to the lapse of time, and the arranged peak constant speed section The peak slope value is extracted by connecting the average values of to each other with a straight line, and when the extracted peak slope value exceeds the threshold value of the peak slope, an alarm is generated to induce inspection and management of the device. Predictive maintenance method of equipment through
According to claim 1 or 2,

Instead of the average value collection step (S30), in the peak constant speed section repeatedly set and collected in the information collection step (S10) and the constant speed section collection step (S20), the start point where the section starts and the end point and section where the section ends A random measurement value collection step (S70) of selecting any one point from among random points within and repeatedly collecting values for points selected from a plurality of the repeatedly collected peak constant speed sections as random measurement values,

In the threshold value setting step (S40), an arbitrary threshold value is set for an arbitrary measurement value collected in a peak constant speed section,

In the detection step (S50), a random point selected in the random measurement value collection step (S70) in the peak constant speed section set and collected based on the peak value for the work process repeatedly performed in the real-time driving state of the device A method for predictive maintenance of a device through constant rate definition for a peak, characterized in that extracting a measured value and inducing an inspection and management of the device by alerting when the extracted arbitrary measured value exceeds the arbitrary threshold value.
According to claim 4,

Random measurement values of the peak constant speed section that are repeatedly collected in the random measurement value collection step (S70) are arranged according to the lapse of time, and after connecting the arranged random measurement values with a straight line, the slope of the straight line is calculated. Further comprising a random gradient information collection step (S80) of collecting random gradient information through

In the threshold value setting step (S40), a threshold value of an arbitrary slope for an arbitrary measurement value of a peak constant speed section is set,

In the detection step (S50), arbitrary measured values for the peak constant speed section set based on the peak value for the work process repeatedly performed in the real-time driving state of the device are arranged according to the lapse of time, and the arranged peak constant speed A random slope value is extracted by connecting arbitrary measured values of the section with each other in a straight line, and when the extracted random slope value exceeds the threshold value of the random slope, an alarm is generated to induce inspection and management of the device. A method for predictive maintenance of equipment through constant speed definition.
According to claim 2,

Based on the peak values collected in the information collection step (S10) and the constant speed section collection step (S20), the peak constant speed section is repeatedly set and collected,

A calculation step (S90) of setting a unit time detection section that can include at least two or more peak constant speed sections instead of the average value collection step (S30), and calculating the maximum number of peak constant speed sections that can be included in the detection section. Including more,

In the threshold value setting step (S40), a threshold number for the number of peak constant speed sections included in the detection section is set based on the maximum number of peak constant speed sections for the detection section through the calculation step (S90),

In the detection step (S50), a peak constant speed section of a certain unit time is collected based on the peak value of the work process repeatedly performed in the real-time driving state of the device, and the peak constant speed section detected within the unit time of the detection section A predictive maintenance method for a device through constant rate definition for a peak, characterized in that if the number is less than the threshold number, an alarm is issued to induce inspection and management of the device.