CN113465779A - Mechanical equipment temperature trend increase early warning method and system based on dynamic multi-reference - Google Patents
Mechanical equipment temperature trend increase early warning method and system based on dynamic multi-reference Download PDFInfo
- Publication number
- CN113465779A CN113465779A CN202110780813.7A CN202110780813A CN113465779A CN 113465779 A CN113465779 A CN 113465779A CN 202110780813 A CN202110780813 A CN 202110780813A CN 113465779 A CN113465779 A CN 113465779A
- Authority
- CN
- China
- Prior art keywords
- temperature
- mechanical equipment
- preset
- value
- early warning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000012935 Averaging Methods 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 9
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000004590 computer program Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 230000000737 periodic effect Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 239000004519 grease Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention belongs to the field of mechanical equipment state monitoring and predictive maintenance, and discloses a mechanical equipment temperature trend increase early warning method and a system based on dynamic multi-reference, which comprises the following steps: acquiring the temperature of mechanical equipment and the temperature acquisition time; obtaining a temperature reference value at the temperature acquisition moment according to the temperature acquisition moment and a preset temperature reference sequence; obtaining a temperature rise value of the mechanical equipment according to the temperature and a temperature reference value at the temperature acquisition moment; and acquiring a preset temperature rise threshold value of the mechanical equipment, and performing temperature trend increase alarm when the current temperature rise value of the mechanical equipment is greater than the preset temperature rise threshold value. The dynamic multi-reference-based mechanical equipment temperature trend increase early warning method and system eliminate the influence of the external environment on the temperature trend increase, do not need to depend on newly-added external environment temperature to compensate the temperature of the mechanical equipment, have simple and convenient realization process and universality, and provide a reliable and effective method for the early warning of the temperature trend increase of the mechanical equipment.
Description
Technical Field
The invention belongs to the field of mechanical equipment state monitoring and predictive maintenance, and relates to a dynamic multi-reference-based mechanical equipment temperature trend increase early warning method and system.
Background
Mechanical equipment is widely applied in various industries, and one of the simplest and most direct monitoring modes of the mechanical equipment is real-time temperature monitoring. Generally, when a mechanical device has an operation failure or some potential failure hazard, the temperature is often increased. Therefore, the abnormal operation of the equipment can be effectively found by detecting the temperature rise of the mechanical equipment, and the fault can be timely eliminated to avoid causing more serious consequences.
At present, the early warning mechanism for the temperature of mechanical equipment is single, for example, the wind power industry only sets a fixed warning threshold value for the oil temperature of a gear box to detect temperature abnormity, the temperature is higher than 75 ℃ for warning, and a unit is stopped when the temperature is higher than 80 ℃. And as specified in the mechanical industry standard JB/T6439-92: when the pump operates under the specified working condition, the temperature of the outer surface of the built-in bearing is not higher than the temperature of a conveying medium by 20 ℃, the highest temperature is not higher than 80 ℃, and the temperature of the outer surface of the built-in bearing is not higher than the ambient temperature by 40 ℃, and the highest temperature is not higher than 80 ℃. The early warning mechanism aiming at the temperature of the mechanical equipment is simple at present, particularly in early warning aiming at temperature rise, the temperature of the mechanical equipment has strong correlation with the abnormal operation of the equipment and the change of the external environment, the mode of relying on newly-added temperature compensation hardware cannot be implemented in most scenes and is also influenced by the above, and the current trend increase early warning method based on the temperature rise result cannot be accurate and effective because a reliable and accurate temperature rise calculation method is not available, and the phenomena of false warning and missed warning often occur.
Disclosure of Invention
The invention aims to overcome the defects that the existing trend increase early warning method based on the temperature rise result in the prior art cannot be accurate and effective and the phenomena of false alarm and missed alarm often occur, and provides a dynamic multi-reference-based mechanical equipment temperature trend increase early warning method and system.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
in a first aspect of the present invention, a dynamic multi-reference-based mechanical equipment temperature trend increase early warning method includes the following steps:
acquiring the temperature of mechanical equipment and the temperature acquisition time;
obtaining a temperature reference value at the temperature acquisition moment according to the temperature acquisition moment and a preset temperature reference sequence;
obtaining a temperature rise value of the mechanical equipment according to the temperature and a temperature reference value at the temperature acquisition moment;
and acquiring a preset temperature rise threshold value of the mechanical equipment, and performing temperature trend increase alarm when the current temperature rise value of the mechanical equipment is greater than the preset temperature rise threshold value.
The dynamic multi-reference-based mechanical equipment temperature trend increase early warning method is further improved as follows:
the preset temperature reference sequence comprises a first preset number of temperature reference values, one day is divided into a first preset number of time intervals, and the temperature reference values correspond to the time intervals one by one; the first preset number of temperature reference values are obtained in the following manner: acquiring a plurality of historical temperatures and temperature acquisition moments of the historical temperatures in a second preset number of days before the mechanical equipment, and acquiring time intervals of the temperature acquisition moments of the historical temperatures; and traversing a first preset number of time intervals, and averaging the historical temperatures corresponding to the temperature acquisition moments of all the historical temperatures corresponding to the current time interval to obtain the temperature reference values corresponding to all the time intervals.
The first predetermined number is 24, each time interval being represented by an hour value.
The specific method for selecting the temperature reference value at the temperature acquisition time from the preset temperature reference sequence according to the temperature acquisition time comprises the following steps: acquiring a time interval to which a temperature acquisition moment belongs to obtain a target time interval; and according to the target time interval, selecting a temperature reference value corresponding to the target time interval from a preset temperature reference sequence to obtain a temperature reference value at the temperature acquisition moment.
The second predetermined number is greater than 1.
The second predetermined number is 7.
When the temperature of the mechanical equipment is obtained, the temperature of the mechanical equipment is continuously obtained at preset temperature collection intervals through the temperature collection device installed at the preset position of the mechanical equipment.
The temperature acquisition device is a pt100 temperature sensor, the preset temperature acquisition interval is not less than 5min, and the preset position is a bearing seat position or a gear box lubricating oil inlet.
The specific method for obtaining the temperature rise value of the mechanical equipment according to the temperature and the temperature reference value at the temperature acquisition time comprises the following steps: and calculating the difference between the temperature and the temperature reference value at the temperature acquisition moment to obtain the temperature rise value of the mechanical equipment.
In a second aspect of the present invention, a dynamic multi-reference based temperature trend increase early warning system for mechanical equipment includes:
the acquisition module is used for acquiring the temperature of the mechanical equipment and the temperature acquisition time;
the reference value determining module is used for obtaining a temperature reference value at the temperature acquisition moment according to the temperature acquisition moment and a preset temperature reference sequence;
the temperature rise value determining module is used for obtaining the temperature rise value of the mechanical equipment according to the temperature and the temperature reference value at the temperature acquisition moment;
and the early warning module is used for acquiring a preset temperature rise threshold value of the mechanical equipment, and performing temperature trend increase warning when the current temperature rise value of the mechanical equipment is greater than the preset temperature rise threshold value.
Compared with the prior art, the invention has the following beneficial effects:
according to the dynamic multi-reference mechanical equipment temperature trend increase early warning method, the temperature reference value at the temperature acquisition time is obtained according to the temperature acquisition time and the preset temperature reference sequence, different temperature acquisition times have different temperature reference values, a multi-reference mode of the temperature reference values is realized, trend increase misinformation caused by natural change of temperature in one day is avoided, the influence of external environment on temperature trend increase is eliminated, compensation on the temperature of mechanical equipment is not needed to be carried out by relying on newly-added external environment temperature, accurate temperature trend increase early warning can be realized, the whole realization process is simple and convenient, meanwhile, the universality is realized, and a reliable and effective method is provided for mechanical equipment temperature trend increase early warning.
Furthermore, when the temperature reference value is set, a plurality of historical temperatures of the mechanical equipment in the second preset number of days and the temperature acquisition time of each historical temperature are obtained, the temperature data of the temperature reference value are calculated to be dynamically changed, and the accuracy and comparability of the temperature reference value are effectively guaranteed.
Drawings
FIG. 1 is a graph of temperature trend measured 24 hours a day by a certain mechanical device;
FIG. 2 is a flow chart of a dynamic multi-reference based early warning method for temperature trend increase of mechanical equipment according to the present invention;
FIG. 3 is a diagram of the temperature trend increase warning result corresponding to excessive grease addition to a bearing of a mechanical device;
fig. 4 is a diagram of the temperature trend increase early warning result corresponding to the peeling fault of the bearing inner ring of a certain mechanical device.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
in actual practice, the applicant has found that the temperature of the mechanical equipment is not only closely related to the operating process, but it is also affected by the variations of the operating environment. Most typically, the temperature of mechanical equipment shows periodic change in a short period of time with day as a period, the maximum temperature difference (temperature rise) of the natural environment in one day may exceed 30 ℃, seasonal change in a long period of time with year as a period may also exceed 50 ℃, and therefore, the method for obtaining accurate temperature rise by eliminating the influence of the external environment is particularly critical in the application of temperature rise early warning. Referring to fig. 1, it can be found from the temperature trend detected by a certain mechanical device at each time of day that the temperature change of the mechanical device is completely consistent with the ambient temperature change rule in one day, so the reference value of the temperature must consider the influence of the external environment. Based on the above, the invention adopts a dynamic multi-reference temperature trend increase early warning method, accurately extracts the temperature rise value of the mechanical equipment, and reliably and accurately warns the temperature trend increase of the mechanical equipment.
Referring to fig. 2, in an embodiment of the present invention, a dynamic multi-reference-based mechanical device temperature trend increase early warning method is provided, an influence of an external environment on a temperature trend increase is eliminated, compensation for a mechanical device temperature does not need to be performed depending on a newly added external environment temperature, an implementation process is simple and convenient, and meanwhile, the method has universality, and a reliable and effective method is provided for early warning of a mechanical device temperature trend increase. Specifically, the dynamic multi-benchmark-based mechanical equipment temperature trend growth early warning method comprises the following steps.
S1: and acquiring the temperature of the mechanical equipment and the temperature acquisition time.
When the temperature of the mechanical equipment is acquired, the temperature of the mechanical equipment is continuously acquired at preset temperature acquisition intervals through the temperature acquisition device installed at the preset position of the mechanical equipment.
Specifically, a temperature acquisition device is installed at key positions of mechanical equipment, such as a bearing seat position, a gear box lubricating oil inlet and the like, a commonly-used temperature acquisition device is a pt100 temperature sensor, the temperature of the mechanical equipment is continuously detected on line in real time through the temperature acquisition device, the temperature acquired at the current moment is recorded as temp, and the time stamp of the corresponding temperature acquisition moment is recorded as daqtime. The temperature acquisition interval is recommended to be not less than 5min, the temperature value of 1 second is supported at the current mainstream temperature acquisition interval, and the temperature acquisition interval can be well realized, such as the temperature acquisition result contained in the wind power SCADA system.
S2: and obtaining a temperature reference value at the temperature acquisition moment according to the temperature acquisition moment and a preset temperature reference sequence. This requires relying on a preset temperature reference sequence. Specifically, the preset temperature reference sequence comprises a first preset number of temperature reference values, a day is divided into a first preset number of time intervals, and the temperature reference values correspond to the time intervals one to one.
The first preset number of temperature reference values are obtained in the following manner: acquiring a plurality of historical temperatures and temperature acquisition moments of the historical temperatures in a second preset number of days before the mechanical equipment, and acquiring time intervals of the temperature acquisition moments of the historical temperatures; and traversing a first preset number of time intervals, and averaging the historical temperatures corresponding to the temperature acquisition moments of all the historical temperatures corresponding to the current time interval to obtain the temperature reference values corresponding to all the time intervals.
Specifically, in this embodiment, the first preset number is 24, each time interval is represented by an hour value, and a specific process of acquiring 24 temperature reference values is as follows:
step 1: the elements of the initialization tempbase (temperature reference value sequence) are all 0's and have a length of 24.
Step 2: acquiring temperature acquisition historical data N (second preset number) days before the current time, and recording the temperature acquisition historical data as histemp; and if the span of the acquired data volume before the current moment is less than N days, directly jumping to the step 5.
Wherein, N is an integer greater than 1, and is generally 7. N is larger than 1, 24 temperature reference values in 24 hours a day can be calculated, and data larger than 1 day can ensure that the calculated temperature reference values have high reliability and are not influenced by temperature data abnormality at a certain moment in a certain day.
And step 3: and acquiring an hour value which is recorded as H and corresponds to each temperature acquisition time in histemp. Example (c): for example, 2020-08-2413: 15:00 acquisition times correspond to an hour value H of 13.
And 4, step 4: and calculating the average value of all the temperatures with the same H value in histemp to be recorded as basei, and assigning the H-th element (24 elements in total, starting from 0, and having subscripts of 0-23) in tempbase to be basei.
And 5: and outputting a temperature reference sequence tempbase.
Based on the temperature reference sequence established in the above manner, the specific method for obtaining the temperature reference value at the temperature acquisition time according to the temperature acquisition time and the preset temperature reference sequence is as follows: acquiring a time interval to which a temperature acquisition moment belongs to obtain a target time interval; and according to the target time interval, selecting a temperature reference value corresponding to the target time interval from a preset temperature reference sequence to obtain a temperature reference value at the temperature acquisition moment.
S3: and obtaining a temperature rise value of the mechanical equipment according to the temperature and the temperature reference value at the temperature acquisition time.
The specific method for obtaining the temperature rise value of the mechanical equipment according to the temperature and the temperature reference value at the temperature acquisition time comprises the following steps: and calculating the difference between the temperature and the temperature reference value at the temperature acquisition moment to obtain the temperature rise value of the mechanical equipment.
Specifically, in this embodiment, the specific calculation method is as follows:
step 11: and acquiring an hour value corresponding to the temperature acquisition time daqtime, and recording the hour value as hour.
Step 12: judging whether the first hour value in the temperature reference sequence tempbase is equal to 0, if so, directly outputting the temperature rise value deltatemp of the mechanical equipment to be 0, and entering step 14; otherwise, continue with step 13.
Step 13: the difference between the temperature temp minus the second home value in the reference sequence tempbase is calculated as the temperature rise value deltatemp of the mechanical device.
Step 14: and outputting the temperature rise value deltatemp of the mechanical equipment.
S4: and acquiring a preset temperature rise threshold value of the mechanical equipment, and performing temperature trend increase alarm when the current temperature rise value of the mechanical equipment is greater than the preset temperature rise threshold value.
Specifically, whether the temperature rise value deltatemp of the mechanical equipment exceeds a preset temperature rise threshold tempthr or not is judged, and a trend increase early warning result is output. If the temperature rise value deltatemp of the mechanical equipment exceeds a preset temperature rise threshold tempthr, triggering a trend increase alarm; otherwise, no trend increase alarm is carried out, and the temperature trend is normal.
The preset temperature rise threshold tempthr is determined according to different working condition scenes of different mechanical equipment, the preset temperature rise threshold tempthr is at least larger than 10 ℃, generally common mechanical equipment such as a fan, a pump, a reduction gearbox and the like can accurately detect temperature trend increase when the preset temperature rise threshold tempthr is 15-30 ℃.
In summary, the temperature trend increase early warning method for the mechanical equipment based on the dynamic multi-reference achieves more accurate temperature trend increase early warning for the mechanical equipment. The real and accurate temperature rise is calculated by extracting a temperature reference value at the 24-hour time in one day from the dynamic historical temperature data and comparing the corresponding temperature reference value with the current temperature at the hour time of the current time. And judging the temperature trend increasing condition according to the temperature rise and giving an early warning result.
The dynamic multi-reference is embodied in two aspects, firstly, the data for calculating the temperature reference is dynamically changed, the temperature data N days before the current moment is selected for calculating the temperature reference, and the accuracy and comparability of the temperature reference are effectively ensured, because the temperature data has seasonal changes, the temperature reference of fixed time cannot ensure the accuracy and the usability of the temperature reference. Secondly, the temperature at the current moment is compared with the temperature reference at the corresponding moment by a multi-reference mode of 24 moments in a day, so that trend increase misinformation caused by natural change of the temperature in a day is avoided.
The dynamic multi-reference-based mechanical equipment temperature trend increase early warning method eliminates the influence of the external environment on the temperature trend increase, can realize accurate temperature trend increase early warning without depending on newly-added external environment temperature to compensate the temperature of the mechanical equipment, is simple and convenient in realization process, has universality and provides a reliable and effective method for the mechanical equipment temperature trend increase early warning.
Referring to fig. 3, a temperature trend increase early warning result corresponding to the increase of lubricating grease at a bearing position of a certain mechanical device is shown, the detected temperature data of the mechanical device has obvious periodic (periodic in days), and the temperature of a plurality of time positions can be obviously increased approximately in the graph, but the temperature does not actually correspond to the operation fault of the mechanical device, so that the real trend increase result of the temperature of the mechanical device cannot be accurately extracted by a conventional means. By adopting the dynamic multi-reference-based mechanical equipment temperature trend increase early warning method, the temperature trend increase with the real point position is monitored, and the problem of poor heat dissipation performance caused by excessive addition of lubricating grease of the bearing seat of the mechanical equipment is solved.
Referring to fig. 4, for the temperature trend increase early warning result corresponding to a bearing fault of a certain mechanical device, it is shown that the detected temperature data of the mechanical device has a relatively obvious periodic (periodic in days), and it can be obviously seen that the temperatures of a plurality of time positions are approximately increased, but the temperature does not actually correspond to the operation fault of the mechanical device, and it is obvious that the actual trend increase result of the temperature of the mechanical device cannot be accurately extracted by a conventional method. By adopting the dynamic multi-reference-based mechanical equipment temperature trend increase early warning method, the temperature trend increase which is real at the point position is monitored, and the bearing damage fault caused by the peeling of the inner ring of the mechanical equipment bearing is responded.
The following are embodiments of the apparatus of the present invention that may be used to perform embodiments of the method of the present invention. For details of non-careless mistakes in the embodiment of the apparatus, please refer to the embodiment of the method of the present invention.
In another embodiment of the present invention, a mechanical equipment temperature trend increase early warning system based on dynamic multi-reference is provided, which can be used for implementing the mechanical equipment temperature trend increase early warning method based on dynamic multi-reference, and specifically, the mechanical equipment temperature trend increase early warning system based on dynamic multi-reference includes an obtaining module, a reference value determining module, a temperature increase value determining module, and an early warning module.
The acquisition module is used for acquiring the temperature of the mechanical equipment and the temperature acquisition time; the reference value determining module is used for obtaining a temperature reference value at the temperature acquisition moment according to the temperature acquisition moment and a preset temperature reference sequence; the temperature rise value determining module is used for obtaining a temperature rise value of the mechanical equipment according to the temperature and a temperature reference value at the temperature acquisition moment; the early warning module is used for acquiring a preset temperature rise threshold value of the mechanical equipment, and when the current temperature rise value of the mechanical equipment is larger than the preset temperature rise threshold value, the temperature trend increase alarm is carried out.
In yet another embodiment of the present invention, a computer device is provided that includes a processor and a memory for storing a computer program comprising program instructions, the processor for executing the program instructions stored by the computer storage medium. The Processor may be a Central Processing Unit (CPU), or may be other general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable gate array (FPGA) or other Programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc., which is a computing core and a control core of the terminal, and is specifically adapted to load and execute one or more instructions in a computer storage medium to implement a corresponding method flow or a corresponding function; the processor provided by the embodiment of the invention can be used for operating the temperature trend increase early warning method of the mechanical equipment based on the dynamic multi-benchmark.
In yet another embodiment of the present invention, the present invention further provides a storage medium, specifically a computer-readable storage medium (Memory), which is a Memory device in a computer device and is used for storing programs and data. It is understood that the computer readable storage medium herein can include both built-in storage media in the computer device and, of course, extended storage media supported by the computer device. The computer-readable storage medium provides a storage space storing an operating system of the terminal. Also, one or more instructions, which may be one or more computer programs (including program code), are stored in the memory space and are adapted to be loaded and executed by the processor. It should be noted that the computer-readable storage medium may be a high-speed RAM memory, or may be a non-volatile memory (non-volatile memory), such as at least one disk memory. One or more instructions stored in the computer-readable storage medium may be loaded and executed by a processor to implement the corresponding steps of the above-described embodiments with respect to the dynamic multi-reference based temperature trend growth warning method for mechanical equipment.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. A mechanical equipment temperature trend growth early warning method based on dynamic multi-reference is characterized by comprising the following steps:
acquiring the temperature of mechanical equipment and the temperature acquisition time;
obtaining a temperature reference value at the temperature acquisition moment according to the temperature acquisition moment and a preset temperature reference sequence;
obtaining a temperature rise value of the mechanical equipment according to the temperature and a temperature reference value at the temperature acquisition moment;
and acquiring a preset temperature rise threshold value of the mechanical equipment, and performing temperature trend increase alarm when the current temperature rise value of the mechanical equipment is greater than the preset temperature rise threshold value.
2. The dynamic multi-reference-based mechanical equipment temperature trend growth early warning method according to claim 1, wherein the preset temperature reference sequence comprises a first preset number of temperature reference values, a day is divided into a first preset number of time intervals, and the temperature reference values correspond to the time intervals one to one;
the first preset number of temperature reference values are obtained in the following manner:
acquiring a plurality of historical temperatures and temperature acquisition moments of the historical temperatures in a second preset number of days before the mechanical equipment, and acquiring time intervals of the temperature acquisition moments of the historical temperatures;
and traversing a first preset number of time intervals, and averaging the historical temperatures corresponding to the temperature acquisition moments of all the historical temperatures corresponding to the current time interval to obtain the temperature reference values corresponding to all the time intervals.
3. The dynamic multi-reference based mechanical equipment temperature trend growth early warning method according to claim 2, wherein the first preset number is 24, and each time interval is represented by an hour value.
4. The dynamic multi-reference-based mechanical equipment temperature trend growth early warning method according to claim 2, wherein the specific method for selecting the temperature reference value at the temperature acquisition time from the preset temperature reference sequence according to the temperature acquisition time is as follows:
acquiring a time interval to which a temperature acquisition moment belongs to obtain a target time interval;
and according to the target time interval, selecting a temperature reference value corresponding to the target time interval from a preset temperature reference sequence to obtain a temperature reference value at the temperature acquisition moment.
5. The dynamic multi-reference based mechanical device temperature trend growth pre-warning method according to claim 2, wherein the second preset number is greater than 1.
6. The dynamic multi-reference based mechanical device temperature trend growth pre-warning method according to claim 2, wherein the second preset number is 7.
7. The dynamic multi-reference-based mechanical equipment temperature trend growth early warning method according to claim 1, wherein when the temperature of the mechanical equipment is obtained, the temperature of the mechanical equipment is continuously obtained at preset temperature collection intervals through a temperature collection device installed at a preset position of the mechanical equipment.
8. The dynamic multi-reference-based mechanical equipment temperature trend growth early warning method according to claim 7, wherein the temperature acquisition device is a pt100 temperature sensor, the preset temperature acquisition interval is not less than 5min, and the preset position is a bearing seat position or a gearbox lubricating oil inlet.
9. The dynamic multi-reference-based mechanical equipment temperature trend growth early warning method according to claim 1, wherein the specific method for obtaining the temperature rise value of the mechanical equipment according to the temperature and the temperature reference value at the temperature acquisition time comprises the following steps:
and calculating the difference between the temperature and the temperature reference value at the temperature acquisition moment to obtain the temperature rise value of the mechanical equipment.
10. A mechanical equipment temperature trend growth early warning system based on dynamic multi-benchmark is characterized by comprising:
the acquisition module is used for acquiring the temperature of the mechanical equipment and the temperature acquisition time;
the reference value determining module is used for obtaining a temperature reference value at the temperature acquisition moment according to the temperature acquisition moment and a preset temperature reference sequence;
the temperature rise value determining module is used for obtaining the temperature rise value of the mechanical equipment according to the temperature and the temperature reference value at the temperature acquisition moment;
and the early warning module is used for acquiring a preset temperature rise threshold value of the mechanical equipment, and performing temperature trend increase warning when the current temperature rise value of the mechanical equipment is greater than the preset temperature rise threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110780813.7A CN113465779A (en) | 2021-07-09 | 2021-07-09 | Mechanical equipment temperature trend increase early warning method and system based on dynamic multi-reference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110780813.7A CN113465779A (en) | 2021-07-09 | 2021-07-09 | Mechanical equipment temperature trend increase early warning method and system based on dynamic multi-reference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113465779A true CN113465779A (en) | 2021-10-01 |
Family
ID=77879683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110780813.7A Pending CN113465779A (en) | 2021-07-09 | 2021-07-09 | Mechanical equipment temperature trend increase early warning method and system based on dynamic multi-reference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113465779A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970384A (en) * | 2021-10-22 | 2022-01-25 | 山信软件股份有限公司 | Temperature change trend alarm method and system |
| CN115047927A (en) * | 2022-05-31 | 2022-09-13 | 北京北方华创微电子装备有限公司 | Temperature monitoring method and device in semiconductor process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176274A (en) * | 2011-02-14 | 2011-09-07 | 国家粮食局科学研究院 | Grain condition alarm system, grain condition control system and grain bulk safety state discrimination method |
| CN106482844A (en) * | 2016-10-09 | 2017-03-08 | 国网山东省电力公司东营供电公司 | A kind of equipment method for early warning and system based on temperature survey and the season temperature difference |
| CN110415494A (en) * | 2019-07-25 | 2019-11-05 | 西安因联信息科技有限公司 | A kind of equipment alarm threshold value calculation method based on history data |
| CN110726494A (en) * | 2019-11-27 | 2020-01-24 | 成都比善科技开发有限公司 | High-voltage switch cabinet temperature monitoring system and monitoring method |
| CN112101646A (en) * | 2020-09-01 | 2020-12-18 | 国家电投集团江西电力有限公司 | Temperature rise fault early warning method for fan water cooling system |
| WO2021073362A1 (en) * | 2019-10-16 | 2021-04-22 | 中车大连机车车辆有限公司 | Temperature rise monitoring method with automatic ambient temperature compensation, locomotive operation control method, and locomotive |
-
2021
- 2021-07-09 CN CN202110780813.7A patent/CN113465779A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176274A (en) * | 2011-02-14 | 2011-09-07 | 国家粮食局科学研究院 | Grain condition alarm system, grain condition control system and grain bulk safety state discrimination method |
| CN106482844A (en) * | 2016-10-09 | 2017-03-08 | 国网山东省电力公司东营供电公司 | A kind of equipment method for early warning and system based on temperature survey and the season temperature difference |
| CN110415494A (en) * | 2019-07-25 | 2019-11-05 | 西安因联信息科技有限公司 | A kind of equipment alarm threshold value calculation method based on history data |
| WO2021073362A1 (en) * | 2019-10-16 | 2021-04-22 | 中车大连机车车辆有限公司 | Temperature rise monitoring method with automatic ambient temperature compensation, locomotive operation control method, and locomotive |
| CN110726494A (en) * | 2019-11-27 | 2020-01-24 | 成都比善科技开发有限公司 | High-voltage switch cabinet temperature monitoring system and monitoring method |
| CN112101646A (en) * | 2020-09-01 | 2020-12-18 | 国家电投集团江西电力有限公司 | Temperature rise fault early warning method for fan water cooling system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970384A (en) * | 2021-10-22 | 2022-01-25 | 山信软件股份有限公司 | Temperature change trend alarm method and system |
| CN115047927A (en) * | 2022-05-31 | 2022-09-13 | 北京北方华创微电子装备有限公司 | Temperature monitoring method and device in semiconductor process |
| CN115047927B (en) * | 2022-05-31 | 2024-02-27 | 北京北方华创微电子装备有限公司 | Temperature monitoring method and device in semiconductor process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8988238B2 (en) | Change detection system using frequency analysis and method | |
| CN113465779A (en) | Mechanical equipment temperature trend increase early warning method and system based on dynamic multi-reference | |
| US10257959B2 (en) | Method and apparatus for monitoring electromechanical device performance and reliability | |
| US10282968B2 (en) | Intelligent monitoring method and apparatus | |
| CN109469896B (en) | Industrial boiler fault diagnosis method and system based on time series analysis | |
| JP7042577B2 (en) | Machine protection and diagnostic systems and methods | |
| US11480948B2 (en) | Monitoring target selecting device, monitoring target selecting method, and program | |
| CN116593811B (en) | Integrated frequency converter running state monitoring system and monitoring method | |
| CN109959465A (en) | Motor temperature early warning guard method, computer equipment and readable storage medium storing program for executing | |
| JP5939439B2 (en) | Abnormality diagnosis device | |
| US8450984B2 (en) | Diagnosis and prognosis of rotor thermal sensitivity | |
| CN113107831B (en) | Method, device and equipment for monitoring state and service life of water feed pump and storage medium | |
| US20230280240A1 (en) | Abnormality diagnosis device and abnormality diagnosis method | |
| WO2018181120A1 (en) | Information processing device, information processing method, and program | |
| CN113123955B (en) | Plunger pump abnormity detection method and device, storage medium and electronic equipment | |
| JP2019185415A (en) | Abnormality determination device and abnormality determination method | |
| JP6766248B2 (en) | Moisture contamination detection device, moisture contamination detection program, moisture contamination detection method, and moisture contamination detection system | |
| CN108197717A (en) | Equipment maintenance system and method based on signal | |
| CN104598361A (en) | Performance monitoring method and device | |
| CN108229223B (en) | Method and device for preventing electronic product from being disassembled | |
| JP7325219B2 (en) | Plant monitoring diagnostic device and plant monitoring diagnostic method | |
| CN113237506B (en) | Early warning method and system for high-voltage bushing tap device and storage medium | |
| Collart et al. | Providing key process enabling vacuum capability through integrated sub-fab data management | |
| JP2022155028A (en) | Device state monitor, program and device state monitoring method | |
| US20210257955A1 (en) | Systems and methods for acquiring the operating parameter data of a motor system with electric motor and corresponding motor system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |