CN112129427A - Array type temperature sensor temperature measuring device and temperature measuring method - Google Patents
Array type temperature sensor temperature measuring device and temperature measuring method Download PDFInfo
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- CN112129427A CN112129427A CN202010997046.0A CN202010997046A CN112129427A CN 112129427 A CN112129427 A CN 112129427A CN 202010997046 A CN202010997046 A CN 202010997046A CN 112129427 A CN112129427 A CN 112129427A
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- 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
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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
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2219/00—Thermometers with dedicated analog to digital converters
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Abstract
The invention relates to a temperature measuring device of an array type temperature sensor, which comprises an array type temperature sensor, an array type analog-to-digital converter, a comprehensive data processing unit and a monitoring system; the array type temperature sensors are attached to the outer side or the inner side of an object to be measured in temperature, and a plurality of temperature sensors are arranged in a matrix manner by embedding a covering film and cover the temperature field of the object to be measured in temperature; the array type temperature sensor is connected with the array type analog-to-digital converter through a temperature sensor flat cable, the array type analog-to-digital converter is connected with the comprehensive data processing unit through a wire, and the comprehensive data processing unit is in communication connection with the monitoring system. Compared with the traditional handheld temperature measuring instrument for measuring the temperature of the object to be measured, the temperature measuring instrument can measure the temperature of the object to be measured in real time, analyze the past temperature change condition of the temperature field of the object to be measured and pre-judge the future temperature change condition of the temperature field of the object to be measured.
Description
Technical Field
The invention relates to the technical field of equipment temperature detection equipment, in particular to a temperature measuring device and a temperature measuring method of an array type temperature sensor.
Background
The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission, power distribution and electric energy conversion of an electric power system. The components in the switch cabinet mainly comprise a circuit breaker, an isolating switch, a load switch, an operating mechanism, a mutual inductor, various protection devices and the like. Heating parts and heating temperatures of electrical equipment in a switch cabinet in an electric power system are mapped to cabinet shells corresponding to space positions according to a certain rule, and the heating parts and the corresponding shells are related to each other.
The power patrol personnel usually use the mutual correlation characteristic between the heating part and the corresponding shell to hand the thermodetector to measure the temperature of the switch cabinet, and if the thermodetector displays that the temperature of a certain part of the switch cabinet is too high, the operation problem of the electrical equipment at the corresponding position in the cabinet is shown, and other electrical equipment in operation can be influenced. Although the inspection temperature measurement mode can find the electrical equipment with operation problems, the real-time temperature measurement can not be carried out on the switch cabinet, the past temperature change condition of the switch cabinet is analyzed, and the future temperature change condition of the switch cabinet is judged in advance. In addition, part of the electrical equipment only heats when running, but does not run in real time, so the inspection temperature measurement mode cannot be found in time.
Disclosure of Invention
In order to solve the above problems, the present invention provides an array type temperature sensor temperature measuring device and a temperature measuring method.
The technical scheme adopted by the invention is as follows:
a temperature measuring device of an array type temperature sensor comprises an array type temperature sensor, an array type analog-to-digital converter, a comprehensive data processing unit and a monitoring system; the array type temperature sensors are attached to the outer side or the inner side of an object to be measured in temperature, and a plurality of temperature sensors are arranged in a matrix manner by embedding a covering film and cover the temperature field of the object to be measured in temperature; the array type temperature sensor is connected with the array type analog-to-digital converter through a temperature sensor flat cable, the array type analog-to-digital converter is connected with the comprehensive data processing unit through a wire, and the comprehensive data processing unit is in communication connection with the monitoring system.
Preferably, the array analog-to-digital converter is formed by integrating a plurality of analog-to-digital converters, and the plurality of analog-to-digital converters correspond to the plurality of temperature sensors one by one and are connected through temperature sensor flat cables.
Preferably, a time difference adjuster is further arranged between the array analog-to-digital converter and the comprehensive data processing unit.
Preferably, the plurality of temperature sensors of the array type temperature sensor can be independently disassembled and assembled, and the coverage area of the matrix arrangement is changed.
Preferably, the array analog-to-digital converter and the integrated data processing unit can be independent from each other or integrated into a whole.
A method for measuring temperature by using the array type temperature sensor temperature measuring device comprises the following steps that firstly, the device is fixed, a plurality of temperature sensors are embedded into a sleeve film matrix for arrangement to form an array type temperature sensor, the array type temperature sensor is attached to the outer side or the inner side of an object to be measured in temperature, and is connected with an array type analog-to-digital converter through a temperature sensor flat cable, the array type analog-to-digital converter is connected with a comprehensive data processing unit in a wired mode, and the comprehensive data processing unit is in communication connection with a monitoring system; secondly, forming a digital signal, and carrying out A/D (analog/digital) conversion on the cabinet temperature field data acquired by the array sensor through an array analog-digital converter to form the digital signal; thirdly, forming preliminary data, arranging and collecting the digital signals by the comprehensive data processing unit according to a control instruction of the monitoring system to form the preliminary data, and feeding the preliminary data back to the monitoring system; extracting key characteristic data, and filtering, extracting and collecting the key characteristic data in the preliminary data by the monitoring system through an internal anti-interference algorithm; and fifthly, forming a temperature measurement result, processing the key characteristic data by the monitoring system through an internal visualization algorithm, and dynamically displaying the temperature thermodynamic diagram and the temperature field gradient diagram of the cabinet shell at any time through the computer display device.
Preferably, before the digital signal is formed in the step, the method further comprises the step of performing time difference adjustment by using a difference adjuster, sending isometric signal waves to a plurality of temperature sensors of the array type temperature sensors by using the time difference adjuster, and returning the isometric signal waves to the time difference adjuster to adjust the temperature measurement time of each temperature sensor, so that the array type analog-to-digital converter obtains the cabinet body temperature field data acquired by the array type sensors and synchronizes at the same time.
The invention has the beneficial effects that:
1. compared with the traditional handheld temperature measuring instrument for measuring the temperature of the switch cabinet, the temperature measuring instrument can measure the temperature of the switch cabinet in real time. The invention can analyze the past temperature change condition of the temperature field of the switch cabinet and pre-judge the future temperature change condition of the temperature field of the switch cabinet.
2. Compared with the traditional temperature field sensor, the array type temperature sensor has the characteristics of high sensitivity, strong interference resistance, good linearity, low power consumption and the like, and the temperature field sensor is arranged in a matrix array, so that the temperature distribution condition of the temperature field of the switch cabinet can be reflected in detail and in detail.
3. Compared with the traditional handheld temperature measuring instrument for measuring the temperature of the switch cabinet, the temperature measuring instrument can save a large amount of labor.
4. Compared with the traditional handheld temperature measuring instrument for measuring the temperature of the switch cabinet, the temperature measuring instrument has the advantages of low manufacturing cost and convenience in use.
Drawings
FIG. 1 is a schematic view of the overall arrangement of the present invention;
FIG. 2 is a schematic view of a partial arrangement of the present invention;
fig. 3 is a schematic diagram of a temperature field model of a switch cabinet.
FIG. 4 is a schematic diagram of a gradient of a temperature field of a switchgear;
in fig. 1-2, 1 is an array type temperature sensor, 2 is a temperature sensor, 3 is a film, 4 is a temperature sensor wire arrangement.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1-2, the present invention is an array type temperature sensor temperature measuring device, which includes an array type temperature sensor 1, an array type analog-to-digital converter, a comprehensive data processing unit and a monitoring system. Array temperature sensor 1 laminating is by electrified internal side in the external side of the cabinet of cubical switchboard or cabinet body shell, forms the matrix arrangement through embedding mantle 3 by a plurality of temperature sensor 2, covers cabinet body temperature field. The plurality of temperature sensors of the array type temperature sensor 1 can be independently disassembled and assembled, and the coverage area of the matrix arrangement is changed. Compared with the traditional temperature field sensor, the array type temperature sensor 1 has the characteristics of high sensitivity, strong interference resistance, good linearity, low power consumption and the like, and the array type temperature sensor 1 is arranged in a matrix manner, so that the temperature distribution condition of the temperature field of the switch cabinet can be reflected in detail and in detail, and the algorithm field verification and test can be carried out in the arrangement and debugging process. The mantle 3 is the key that the sensor array arranged, makes a plurality of temperature sensor 2, temperature sensor winding displacement 4, the perfect combination of quilt test body three be in the same place through mantle 3, and a plurality of temperature sensor 2 just has the characteristics that the array was arranged in embedding the "matrix" of mantle 3. The array type temperature sensor 1 is connected with the array type analog-to-digital converter through a temperature sensor flat cable 4, the array type analog-to-digital converter is connected with the comprehensive data processing unit through a wire, and the comprehensive data processing unit is in communication connection with the monitoring system. The array analog-to-digital converter and the comprehensive data processing unit can be mutually independent and can also be integrated into a whole. In order to ensure the accuracy and stability of the array analog-to-digital converter, the array analog-to-digital converter is formed by integrating a plurality of analog-to-digital converters, and the analog-to-digital converters are in one-to-one correspondence with the temperature sensors 2 and are connected through temperature sensor flat cables 4.
The three ways of heat conduction are known from thermodynamics as heat conduction, heat convection and heat radiation. Thermal conduction is the transfer of heat from a portion of the object having a higher temperature along the surface of the object to a portion of the object having a lower temperature, provided that contact is made. Thermal convection is a heat transfer process in which particles inside a fluid (such as air) are relatively displaced, and the necessary condition is that the relative motion of objects is considered as a macroscopic condition. Thermal radiation is a phenomenon that an object radiates electromagnetic waves (infrared rays) outwards due to temperature, one object radiates energy outwards and absorbs energy radiated from other objects, if the energy radiated by the object is exactly equal to the absorbed energy in the same time, the radiation reaches equilibrium, and the temperature at this moment is the inherent temperature of the object.
As shown in fig. 3, since the switch cabinet in the power system is usually located indoors and the electrical devices in the switch cabinet are also usually located in the enclosed limited space of the switch cabinet, i.e. the switch cabinet is stable both in the cabinet and outside the cabinet, the heat transfer between the charged body and the cabinet housing in the limited space has neither a heat conduction condition of contact nor a thermal convection condition of direct relative movement, i.e. the electrical devices in the switch cabinet have a heating point or a portion during the charged operation, and the heat energy of the portion is transferred to the cabinet housing substantially by direct heat radiation and indirect heat transfer. At the moment, the heating part and the heating temperature of the charged equipment are mapped to the cabinet shell corresponding to the space position according to a certain rule. Therefore, it can be concluded that there is a certain correlation between the heat generating portion and the corresponding housing. By utilizing the relevance, the past temperature accumulation change condition of the switch cabinet can be analyzed by accumulating and integrating historical temperature gradient field data of the switch cabinet, a micro integral type visualization algorithm of temperature field gradient and gradient change rate is formed, and the visualization algorithm is stored in a monitoring system, so that the array type temperature sensor temperature measuring device can analyze the past temperature change condition of the switch cabinet and prejudge the future temperature change condition of the switch cabinet by measuring the temperature of the switch cabinet in real time.
When the array type temperature sensor temperature measuring device is used for measuring the temperature of a switch cabinet, the device is fixed, a plurality of temperature sensors 2 are embedded into a sleeve film 3 and arranged in a matrix manner to form an array type temperature sensor 1, the array type temperature sensor 1 is attached to the outer side of a cabinet body or the inner side of a cabinet body shell close to a charged body and is connected with an array type analog-digital converter through a temperature sensor flat cable 4, the array type analog-digital converter is connected with a comprehensive data processing unit in a wired manner, and the comprehensive data processing unit is connected with a monitoring system in a communication manner; then, the temperature field data of the cabinet body collected by the array sensor is subjected to A/D (analog/digital) conversion by the array analog-digital converter, and a digital signal can be formed; then the comprehensive data processing unit arranges and collects the digital signals to form preliminary data according to the control instruction of the monitoring system, and feeds the preliminary data back to the monitoring system; then filtering, extracting and collecting key characteristic data in the preliminary data by the monitoring system through an internal anti-interference algorithm; and finally, forming a temperature measurement result, processing the key characteristic data by the monitoring system through an internal visualization algorithm, and dynamically displaying the temperature thermodynamic diagram and the temperature field gradient diagram of the cabinet shell at any time through the computer display device. A temperature thermodynamic diagram is shown in fig. 4. It should be noted that the temperature measuring device is not only suitable for measuring the temperature of the switch cabinet, but also suitable for measuring the temperature of other heating devices.
Because a plurality of temperature sensors 2 of the array type temperature sensor 1 are influenced by factors such as current, electric signals and the like in the temperature acquisition process. Therefore, an anti-interference algorithm is formed by utilizing a micro integral formula, and a plurality of abrupt variables generated by the temperature sensor 2 due to current, electric signals and public screen interference signals are filtered. In addition, the attaching mode of the array type temperature sensor 1 attached to the cabinet shell is divided into two modes, wherein one mode is the attaching mode attached to the outer side of the cabinet shell when the power is not cut off, and the other mode is the attaching mode attached to the inner side of the cabinet shell close to a charged body by combining the maintenance and power cut opportunity. The two attaching modes are different in visual algorithms, and the same point is that the conditions of the heating parts in the cabinet can be reflected according to different visual algorithms.
In order to enable the array analog-to-digital converter to obtain the cabinet temperature field data synchronization collected by the array temperature sensor 1. And a time difference adjuster is also arranged between the array analog-to-digital converter and the comprehensive data processing unit. Before the digital signal is formed, a time difference regulator can be used for time difference regulation, isometric signal waves are sent to a plurality of temperature sensors 2 of the array type temperature sensor 1 through the time difference regulator, the signal waves are returned to the time difference regulator to regulate the temperature measurement time of each temperature sensor 2, and therefore the array type analog-to-digital converter obtains cabinet body temperature field data synchronization collected by the array type temperature sensors 1.
Claims (7)
1. The utility model provides an array temperature sensor temperature measuring device which characterized in that: the temperature measuring device comprises an array type temperature sensor, an array type analog-to-digital converter, a comprehensive data processing unit and a monitoring system; the array type temperature sensors are attached to the outer side or the inner side of an object to be measured in temperature, and a plurality of temperature sensors are arranged in a matrix manner by embedding a covering film and cover the temperature field of the object to be measured in temperature; the array type temperature sensor is connected with the array type analog-to-digital converter through a temperature sensor flat cable, the array type analog-to-digital converter is connected with the comprehensive data processing unit through a wire, and the comprehensive data processing unit is in communication connection with the monitoring system.
2. The temperature measuring device according to claim 1, wherein: the array analog-to-digital converter is formed by integrating a plurality of analog-to-digital converters, and the analog-to-digital converters correspond to the temperature sensors one by one and are connected through temperature sensor flat cables.
3. The temperature measuring device according to claim 1, wherein: and a time difference adjuster is also arranged between the array analog-to-digital converter and the comprehensive data processing unit.
4. The temperature measuring device according to claim 1, wherein: the array type temperature sensors can be independently disassembled and assembled, and the coverage area of the matrix arrangement is changed.
5. The temperature measuring device according to claim 1, wherein: the array analog-to-digital converter and the comprehensive data processing unit can be mutually independent and can also be integrated into a whole.
6. A method for measuring temperature by using the array type temperature sensor temperature measuring device of any one of claims 1 to 5, which is characterized in that: the device comprises the following steps that firstly, the device is fixed, a plurality of temperature sensors are embedded into a film covering matrix for arrangement to form an array type temperature sensor, the array type temperature sensor is attached to the outer side or the inner side of an object to be measured in temperature, and is connected with an array type analog-to-digital converter through a temperature sensor flat cable, the array type analog-to-digital converter is connected with a comprehensive data processing unit in a wired mode, and the comprehensive data processing unit is in communication connection with a monitoring system; secondly, forming a digital signal, and carrying out A/D (analog/digital) conversion on the cabinet temperature field data acquired by the array sensor through an array analog-digital converter to form the digital signal; thirdly, forming preliminary data, arranging and collecting the digital signals by the comprehensive data processing unit according to a control instruction of the monitoring system to form the preliminary data, and feeding the preliminary data back to the monitoring system; extracting key characteristic data, and filtering, extracting and collecting the key characteristic data in the preliminary data by the monitoring system through an internal anti-interference algorithm; and fifthly, forming a temperature measurement result, processing the key characteristic data by the monitoring system through an internal visualization algorithm, and dynamically displaying the temperature thermodynamic diagram and the temperature field gradient diagram of the cabinet shell at any time through the computer display device.
7. The method of measuring temperature according to claim 6, wherein: before the digital signals are formed, a time difference regulator is used for time difference regulation, isometric signal waves are sent to a plurality of temperature sensors of the array type temperature sensors through the time difference regulator, the signal waves are returned to the time difference regulator to regulate the temperature measurement time of each temperature sensor, and the array type analog-to-digital converter obtains cabinet body temperature field data collected by the array type sensors and synchronizes at the same time.
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| CN202010997046.0A CN112129427A (en) | 2020-09-21 | 2020-09-21 | Array type temperature sensor temperature measuring device and temperature measuring method |
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| CN202010997046.0A CN112129427A (en) | 2020-09-21 | 2020-09-21 | Array type temperature sensor temperature measuring device and temperature measuring method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091952A (en) * | 2021-04-12 | 2021-07-09 | 江苏徐工工程机械研究院有限公司 | 3D printing post-processing temperature measuring device and method |
| CN117405262A (en) * | 2023-12-15 | 2024-01-16 | 常州泰斯科电子有限公司 | Multi-point temperature acquisition method of temperature tester |
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2020
- 2020-09-21 CN CN202010997046.0A patent/CN112129427A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091952A (en) * | 2021-04-12 | 2021-07-09 | 江苏徐工工程机械研究院有限公司 | 3D printing post-processing temperature measuring device and method |
| CN117405262A (en) * | 2023-12-15 | 2024-01-16 | 常州泰斯科电子有限公司 | Multi-point temperature acquisition method of temperature tester |
| CN117405262B (en) * | 2023-12-15 | 2024-02-23 | 常州泰斯科电子有限公司 | Multi-point temperature acquisition method of temperature tester |
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