CN111998963B - Alarm threshold value adjusting method and device applied to temperature detection equipment - Google Patents
Alarm threshold value adjusting method and device applied to temperature detection equipment Download PDFInfo
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- CN111998963B CN111998963B CN202010848230.9A CN202010848230A CN111998963B CN 111998963 B CN111998963 B CN 111998963B CN 202010848230 A CN202010848230 A CN 202010848230A CN 111998963 B CN111998963 B CN 111998963B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
- G01K3/04—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of time
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
Abstract
The application provides an alarm threshold value adjusting method and device applied to temperature detection equipment. The method provided by the application comprises the steps of obtaining the current working temperature of the working environment detected by temperature detection equipment in the current period; determining an average working temperature according to the current working temperature and a plurality of historical working temperatures; and judging whether the difference ratio of the average working temperature and the preset alarm temperature is greater than the preset ratio, if so, judging whether the difference between the current air temperature and the preset alarm temperature is less than the preset difference, and if so, adjusting the preset alarm temperature according to the average working temperature and the preset adjustment difference. The method and the device can flexibly and automatically adjust the preset alarm temperature with high precision according to the working temperature.
Description
Technical Field
The present disclosure relates to the field of power technologies, and in particular, to a method and an apparatus for adjusting an alarm threshold applied to a temperature detection device.
Background
The operating temperature greatly affects the operating state of the electrical equipment. In order to detect the working temperature of the environment where the power equipment is located, operation and maintenance personnel set corresponding temperature detection equipment at important power equipment according to experience or industrial standards, and set a fixed alarm threshold in advance. And when the working temperature exceeds the alarm threshold value, the temperature detection equipment gives an alarm.
At present, the method for presetting the fixed alarm threshold value cannot flexibly consider the influence of various factors such as the ventilation condition of the electric power equipment, the working time of the electric power equipment, the external season change, the heat radiation of peripheral equipment and the like on the working temperature of the electric power equipment, so that the possibility of false alarm of the temperature detection equipment is caused. For example, after the atmospheric temperature suddenly rises, the previously set lower alarm threshold is not suitable for being applied to the current power equipment, and if the alarm threshold is not adjusted, the temperature detection equipment sends out alarm information at the moment, but the external environment temperature directly exceeds the alarm threshold instead of the equipment having a fault. In order to avoid the possibility of false alarm of the temperature detection device caused by a fixed alarm threshold, operation and maintenance personnel need to continuously adjust the alarm threshold according to the influence of various factors. Therefore, the method for manually adjusting the alarm threshold value is difficult to comprehensively consider the influence of various factors, and the accurate and reasonable alarm threshold value is obtained.
Based on this, there is a need for an alarm threshold adjusting method applied to a temperature detection device, which is used to solve the problem of low accuracy of an alarm threshold in a method for manually adjusting the alarm threshold in the prior art.
Disclosure of Invention
The application provides an alarm threshold value adjusting method applied to temperature detection equipment, which can be used for solving the problem of low alarm threshold value precision in the method for manually adjusting the alarm threshold value in the prior art.
In a first aspect, the present application provides an alarm threshold adjusting method applied to a temperature detection device, where the method includes:
acquiring the current working temperature of the working environment detected by the temperature detection equipment in the current period;
determining an average working temperature according to the current working temperature and a plurality of historical working temperatures; the historical operating temperature is an operating temperature of an operating environment detected by the temperature detection device in a period prior to a current period;
judging whether the difference ratio of the average working temperature to the preset alarm temperature is greater than the preset ratio or not, if so, judging whether the difference ratio of the current air temperature to the preset alarm temperature is less than the preset difference or not, and if so, adjusting the preset alarm temperature according to the average working temperature and the preset adjustment difference.
With reference to the first aspect, in an implementation manner of the first aspect, the method further includes:
and if the difference ratio of the average working temperature to the preset alarm temperature is smaller than or equal to the preset ratio, keeping the preset alarm temperature unchanged.
With reference to the first aspect, in an implementation manner of the first aspect, the method further includes:
if the difference value between the current air temperature and the preset alarm temperature is greater than or equal to the preset difference value, a fault instruction is sent out; and the fault instruction is used for indicating the operation and maintenance personnel to remove the equipment fault.
With reference to the first aspect, in an implementation manner of the first aspect, obtaining a current operating temperature of the operating environment detected by the temperature detection device in a current period further includes:
and judging whether the current working temperature is greater than the preset alarm temperature, and if so, sending an early warning instruction which is used for indicating operation and maintenance personnel to eliminate the reason of temperature abnormality.
With reference to the first aspect, in an implementation manner of the first aspect, determining an average operating temperature according to the current operating temperature and a plurality of historical operating temperatures further includes:
determining the probability of any one working temperature appearing in all working temperatures; the temperature values of the same working temperature are the same;
the average operating temperature is determined based on each operating temperature and the probability of each operating temperature occurring across all operating temperatures.
In a second aspect, the present application provides an alarm threshold adjustment device for use in a temperature detection apparatus, the device comprising:
the acquisition module is used for acquiring the current working temperature of the working environment detected by the temperature detection equipment in the current period;
the determining module is used for determining an average working temperature according to the current working temperature and a plurality of historical working temperatures; the historical operating temperature is an operating temperature of an operating environment detected by the temperature detection device in a period prior to a current period;
the judging module is used for judging whether the difference ratio of the average working temperature and the preset alarm temperature is greater than a preset ratio or not; if the difference ratio of the average working temperature to the preset alarm temperature is larger than the preset ratio, judging whether the difference between the current air temperature and the preset alarm temperature is smaller than a preset difference;
and the adjusting module is used for adjusting the preset alarm temperature according to the average working temperature and a preset adjusting difference value if the difference value between the current air temperature and the preset alarm temperature is smaller than the preset difference value.
With reference to the second aspect, in an implementable manner of the second aspect, the apparatus further includes a holding module:
the maintaining module is used for maintaining the preset alarm temperature unchanged if the difference ratio of the average working temperature to the preset alarm temperature is smaller than or equal to the preset ratio.
With reference to the second aspect, in an implementation manner of the second aspect, the apparatus further includes an instruction module:
the instruction module is used for sending a fault instruction if the difference value between the current air temperature and the preset alarm temperature is greater than or equal to the preset difference value; and the fault instruction is used for indicating the operation and maintenance personnel to remove the equipment fault.
With reference to the second aspect, in an implementation manner of the second aspect, the determining module is further configured to:
judging whether the current working temperature is higher than the preset alarm temperature or not,
the instruction module is further used for sending out an early warning instruction if the current working temperature is higher than the preset warning temperature; the early warning instruction is used for indicating operation and maintenance personnel to eliminate the reason of the temperature anomaly.
With reference to the second aspect, in an implementation manner of the second aspect, the determining module is specifically configured to:
determining the probability of any one working temperature appearing in all working temperatures; the temperature values of the same working temperature are the same;
the average operating temperature is determined based on each operating temperature and the probability of each operating temperature occurring across all operating temperatures.
The method provided by the application can enable the temperature detection equipment to flexibly adjust the preset alarm temperature according to the temperature change of the working environment, and judge for many times before adjusting the preset alarm temperature, so that the condition that the working temperature is abnormal due to reasons such as failure of the power equipment is eliminated, and the condition of the preset alarm temperature is ensured to be established under the normal condition.
Drawings
Fig. 1 is a schematic flowchart of an alarm threshold adjusting method applied to a temperature detection device according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an alarm threshold adjusting device applied to a temperature detection apparatus according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
The temperature detection device is often disposed beside important electric equipment to detect the operating temperature of the electric equipment. The temperature detection device is generally provided with a fixed preset alarm threshold, when the detected working temperature exceeds the preset alarm threshold, the working environment is not suitable for the electric power equipment to continue working, and the temperature detection device sends out an early warning instruction at the moment.
According to the influence of various factors such as weather conditions and ventilation conditions, the preset alarm threshold value needs to be changed according to actual conditions. Based on this, the embodiment of the application provides an alarm threshold value adjusting method applied to temperature detection equipment.
Fig. 1 is a schematic flow chart of an alarm threshold adjusting method applied to a temperature detection device according to an embodiment of the present application. As can be known from fig. 1, the embodiment of the present application mainly includes the following steps:
step 101, obtaining a current working temperature of a working environment detected by a temperature detection device in a current period.
In the embodiment of the application, the temperature detection equipment periodically acquires the current working temperature of the working environment. The period for acquiring the current working temperature may be adjusted according to actual needs, and may be five minutes, ten minutes, or other times, which is not limited herein.
The temperature detection equipment judges whether the current working temperature is higher than a preset alarm temperature or not every time the current working temperature is acquired, and if the current working temperature is higher than the preset alarm temperature, an early warning instruction is sent out and used for indicating operation and maintenance personnel to eliminate the reason of temperature abnormality. Once the current working temperature is higher than the preset alarm temperature, it indicates that the working environment temperature of the power equipment is higher at the moment, which easily causes the power equipment to break down. After the temperature detection equipment sends out the early warning instruction, the operation and maintenance personnel firstly carry out investigation, prevent to be in unusual operational environment for a long time at power equipment, and then lead to unexpected situation.
On the contrary, if the current working temperature is less than or equal to the preset alarm temperature, the power equipment is in a suitable working environment at the moment, and the temperature detection equipment does not need to send any instruction.
Step 102, determining an average operating temperature according to the current operating temperature and a plurality of historical operating temperatures.
Wherein the historical operating temperature is an operating temperature of the operating environment detected by the temperature detecting device in a period prior to the current period.
And recording the current working temperature in a database every time the temperature detection equipment acquires one current working temperature. The database stores the operating temperature for a preset period of time, for example, the operating temperature for the first two hours from the current time.
The working temperature comprises the current working temperature and also comprises historical working temperature.
And deleting the working temperature corresponding to the moment longest from the database every time a new working temperature is stored in the database so as to ensure that the record of the working temperature in the database is always in an updated state.
The average operating temperature is calculated each time after a latest current operating temperature is obtained.
There are various ways to calculate the average operating temperature, and one possible method is to divide the result of the addition of all operating temperatures by the number of operating temperatures.
Another possible method is to first determine the probability that any one of the operating temperatures will occur in all operating temperatures.
It should be noted that the same operating temperature has the same temperature value. For example, all the operation temperatures having the temperature values of 37 degrees are the same temperature, and all the operation temperatures having the temperature values of 36 degrees are the other temperatures.
Specifically, the probability of occurrence of any one of the operating temperatures in all the operating temperatures is determined in the following manner:
in the formula (1), i is the number corresponding to the working temperature in different working temperatures; p is a radical ofiThe probability that the working temperature numbered i appears in all the working temperatures is taken as the probability; m is the number of the working temperatures numbered i; n is the number of all working temperatures.
Then, an average operating temperature is determined based on each operating temperature and the probability that each operating temperature will occur across all operating temperatures.
Specifically, the average operating temperature is determined in the following manner:
in the formula (2), TaIs the average operating temperature; p is a radical ofiThe probability that the working temperature numbered i appears in all the working temperatures is taken as the probability; t isiThe operating temperature is numbered i.
And 103, judging whether the difference ratio of the average working temperature to the preset alarm temperature is greater than the preset ratio or not, and executing step 104 and step 106 if the difference ratio of the average working temperature to the preset alarm temperature is greater than the preset ratio.
Wherein, the difference ratio is determined by adopting the following mode:
in the formula (3), A is a difference ratio; t isoIs a preset alarm temperature; t isaIs the average operating temperature.
In the embodiment of the application, the preset proportion can be set to five percent, and the specific numerical value can be adjusted according to actual needs, which is not limited here.
And 104, judging whether the difference value between the current air temperature and the preset alarm temperature is smaller than a preset difference value, if so, executing a step 105, otherwise, executing a step 107.
Wherein, the current air temperature is the atmospheric temperature measured by other temperature measuring equipment. One value that can be set for the preset difference is ten degrees, and the preset difference can be specifically set according to actual needs, and is not limited here.
And 105, adjusting the preset alarm temperature according to the average working temperature and the preset adjustment difference value.
In the embodiment of the application, the preset alarm temperature is adjusted to be the result of adding the average working temperature and the preset adjustment difference.
The preset adjustment difference value may be set to be one degree, and may be specifically adjusted according to actual needs, which is not limited herein.
And step 106, keeping the preset alarm temperature unchanged.
If the step 106 is executed in the embodiment of the application, it is shown that the preset alarm temperature at the current moment is relatively reasonable, the matching degree with the current working temperature is high, and adjustment is not needed.
Step 107, a fault command is issued. The fault instruction is used for instructing operation and maintenance personnel to remove the equipment fault.
In the embodiment of the present application, if step 107 is executed, it indicates that the power device has a fault at this time, and the current operating temperature acquired by the temperature detection device at this time has no practical significance. At the moment, operation and maintenance personnel are required to remove the fault of the power equipment according to the fault instruction, so that the normal operation of the equipment is ensured.
The method provided by the application can enable the temperature detection equipment to flexibly adjust the preset alarm temperature according to the temperature change of the working environment, and judge for many times before adjusting the preset alarm temperature, so that the condition that the working temperature is abnormal due to reasons such as failure of the power equipment is eliminated, and the condition of the preset alarm temperature is ensured to be established under the normal condition.
The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.
Fig. 2 schematically illustrates a structural diagram of an alarm threshold adjusting device applied to a temperature detection device according to an embodiment of the present application. As shown in fig. 2, the device has a function of implementing the alarm threshold adjusting method of the temperature detection device, and the function may be implemented by hardware, or may be implemented by hardware executing corresponding software. The apparatus may include: an acquisition module 201, a determination module 202, a determination module 203, an adjustment module 204, a holding module 205, and an instruction module 206.
The obtaining module 201 is configured to obtain a current operating temperature of the operating environment detected by the temperature detecting device in a current period.
A determining module 202, configured to determine an average operating temperature according to a current operating temperature and a plurality of historical operating temperatures; the historical operating temperature is an operating temperature of the operating environment detected by the temperature detection device in a period prior to the current period.
The judging module 203 is used for judging whether the difference ratio of the average working temperature and the preset alarm temperature is greater than a preset ratio; and if the difference ratio of the average working temperature to the preset alarm temperature is larger than the preset ratio, judging whether the difference between the current air temperature and the preset alarm temperature is smaller than the preset difference.
And the adjusting module 204 is configured to adjust the preset alarm temperature according to the average working temperature and the preset adjusting difference if the difference between the current air temperature and the preset alarm temperature is smaller than the preset difference.
Optionally, the apparatus further comprises a holding module 205:
and the maintaining module 205 is configured to maintain the preset alarm temperature unchanged if the difference ratio between the average operating temperature and the preset alarm temperature is smaller than or equal to the preset ratio.
Optionally, the method further includes the instruction module 206:
the instruction module 206 is configured to send a fault instruction if a difference between the current air temperature and the preset alarm temperature is greater than or equal to a preset difference; the fault instruction is used for instructing operation and maintenance personnel to remove the equipment fault.
Optionally, the determining module 203 is further configured to:
and judging whether the current working temperature is greater than a preset alarm temperature.
The instruction module 206 is further configured to send an early warning instruction if the current working temperature is greater than a preset warning temperature; the early warning instruction is used for indicating operation and maintenance personnel to eliminate the reason of the temperature anomaly.
Optionally, the determining module 202 is specifically configured to:
determining the probability of any one working temperature appearing in all working temperatures; the same temperature value is the same for the same operating temperature.
An average operating temperature is determined based on each operating temperature and the probability of each operating temperature occurring across all operating temperatures.
The method provided by the application can enable the temperature detection equipment to flexibly adjust the preset alarm temperature according to the temperature change of the working environment, and judge for many times before adjusting the preset alarm temperature, so that the condition that the working temperature is abnormal due to reasons such as failure of the power equipment is eliminated, and the condition of the preset alarm temperature is ensured to be established under the normal condition.
The invention is operational with numerous general purpose or special purpose computing system environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet-type devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like.
The invention may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. An alarm threshold value adjusting method applied to temperature detection equipment is characterized by comprising the following steps:
acquiring the current working temperature of the working environment detected by the temperature detection equipment in the current period;
determining an average working temperature according to the current working temperature and a plurality of historical working temperatures; the historical operating temperature is an operating temperature of an operating environment detected by the temperature detection device in a period prior to a current period;
judging whether the difference ratio of the average working temperature to the preset alarm temperature is greater than the preset ratio or not, if so, judging whether the difference ratio of the current air temperature to the preset alarm temperature is less than the preset difference or not, and if so, adjusting the preset alarm temperature according to the average working temperature and the preset adjustment difference.
2. The method of claim 1, further comprising:
and if the difference ratio of the average working temperature to the preset alarm temperature is smaller than or equal to the preset ratio, keeping the preset alarm temperature unchanged.
3. The method of claim 1, further comprising:
if the difference value between the current air temperature and the preset alarm temperature is greater than or equal to the preset difference value, a fault instruction is sent out; and the fault instruction is used for indicating the operation and maintenance personnel to remove the equipment fault.
4. The method of claim 1, wherein obtaining a current operating temperature of the operating environment detected by the temperature detection device during a current cycle, further comprises:
and judging whether the current working temperature is greater than the preset alarm temperature, and if so, sending an early warning instruction which is used for indicating operation and maintenance personnel to eliminate the reason of temperature abnormality.
5. The method of claim 1, wherein determining an average operating temperature based on the current operating temperature and a plurality of historical operating temperatures further comprises:
determining the probability of any one working temperature appearing in all working temperatures; the temperature values of the same working temperature are the same;
the average operating temperature is determined based on each operating temperature and the probability of each operating temperature occurring across all operating temperatures.
6. An alarm threshold adjusting device applied to a temperature detection device, the device comprising:
the acquisition module is used for acquiring the current working temperature of the working environment detected by the temperature detection equipment in the current period;
the determining module is used for determining an average working temperature according to the current working temperature and a plurality of historical working temperatures; the historical operating temperature is an operating temperature of an operating environment detected by the temperature detection device in a period prior to a current period;
the judging module is used for judging whether the difference ratio of the average working temperature and the preset alarm temperature is greater than a preset ratio or not; if the difference ratio of the average working temperature to the preset alarm temperature is larger than the preset ratio, judging whether the difference between the current air temperature and the preset alarm temperature is smaller than a preset difference;
and the adjusting module is used for adjusting the preset alarm temperature according to the average working temperature and a preset adjusting difference value if the difference value between the current air temperature and the preset alarm temperature is smaller than the preset difference value.
7. The apparatus of claim 6, further comprising a holding module:
the maintaining module is used for maintaining the preset alarm temperature unchanged if the difference ratio of the average working temperature to the preset alarm temperature is smaller than or equal to the preset ratio.
8. The apparatus of claim 6, further comprising an instruction module to:
the instruction module is used for sending a fault instruction if the difference value between the current air temperature and the preset alarm temperature is greater than or equal to the preset difference value; and the fault instruction is used for indicating the operation and maintenance personnel to remove the equipment fault.
9. The apparatus of claim 8, wherein the determining module is further configured to:
judging whether the current working temperature is higher than the preset alarm temperature or not,
the instruction module is further used for sending out an early warning instruction if the current working temperature is higher than the preset warning temperature; the early warning instruction is used for indicating operation and maintenance personnel to eliminate the reason of the temperature anomaly.
10. The apparatus of claim 6, wherein the determining module is specifically configured to:
determining the probability of any one working temperature appearing in all working temperatures; the temperature values of the same working temperature are the same;
the average operating temperature is determined based on each operating temperature and the probability of each operating temperature occurring across all operating temperatures.
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| US4546344A (en) * | 1984-03-05 | 1985-10-08 | American District Telegraph Company | Temperature compensated alarm system |
| CN101192329B (en) * | 2006-12-01 | 2010-11-03 | 首安工业消防有限公司 | Linetype fire disaster detector temperature-differential alarming threshold calibration method for following temperature rising |
| CN102881107A (en) * | 2012-09-26 | 2013-01-16 | 金海新源电气江苏有限公司 | Alarm threshold value adaptive method for distributed optical fiber temperature sensor |
| CN105513262A (en) * | 2016-01-28 | 2016-04-20 | 山东神戎电子股份有限公司 | Threshold-variable forest fire prevention thermal imaging monitoring system and method |
| CN109856299A (en) * | 2018-11-26 | 2019-06-07 | 国家电网有限公司 | A kind of transformer online monitoring differentiation threshold value dynamic setting method, system |
| CN109708777B (en) * | 2018-11-27 | 2020-07-21 | 武汉高德智感科技有限公司 | Basic crowd temperature compensation method for human body inspection and quarantine system |
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| CN110972342B (en) * | 2019-11-13 | 2022-03-15 | 九阳股份有限公司 | Sensor high-temperature alarm threshold compensation method and electromagnetic heating equipment |
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