CN112763086A - Temperature measurement compensating system and temperature measurement compensating device - Google Patents
Temperature measurement compensating system and temperature measurement compensating device Download PDFInfo
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 132
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- 238000010438 heat treatment Methods 0.000 description 2
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
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Abstract
The embodiment of the invention relates to a temperature measurement compensation system and a temperature measurement compensation device, which comprise a temperature measurement device body and a circuit board, wherein the temperature measurement compensation system is arranged on the temperature measurement device body, the circuit board is provided with a main temperature measurement system, and the temperature measurement compensation system comprises a micro-processing unit, a signal processing module and a sensor module. The temperature measurement compensation system and the temperature measurement compensation device obtain the environmental factor signal through the temperature measurement compensation system and the temperature signal obtained by the main temperature measurement system, and the temperature signal is processed by adopting a redundancy method and a data fusion algorithm to obtain a measured temperature value after the environmental factor is compensated. The temperature measurement compensation device compensates the influence of the environmental factors on the temperature to the measured temperature value through collecting the environmental factors and the temperature, so that the accuracy and the reliability of temperature measurement are improved, and the technical problem that the temperature data obtained by measurement due to the influence of the environmental factors of the existing temperature measurement equipment is inaccurate is solved.
Description
Technical Field
The invention relates to the technical field of temperature measurement, in particular to a temperature measurement compensation system and a temperature measurement compensation device.
Background
Temperature measurement is widely applied to various fields of daily life, but sometimes the environment of temperature measurement is often more complicated, temperature measurement is carried out only by a single temperature sensor, and the measured temperature value is not the true temperature value of measured equipment or the measured environment, but is the temperature value under the combined action of environmental factors and a temperature measuring sensor.
Therefore, a temperature measurement system is needed to compensate for the influence of environmental factors, so that the temperature value measured by the temperature measurement system is more accurate and reliable.
Disclosure of Invention
The embodiment of the invention provides a temperature measurement compensation system and a temperature measurement compensation device, which are used for solving the technical problem that temperature data obtained by measurement due to the influence of environmental factors of the existing temperature measurement equipment is inaccurate.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
a temperature measurement compensation system is applied to temperature measurement equipment and comprises a micro-processing unit and a signal processing module connected with the micro-processing unit, wherein the signal processing module is also connected with a sensor module;
the sensor module is used for collecting ambient environmental factors and temperature of the temperature measuring equipment to obtain a temperature signal and an environmental factor signal;
the signal processing module is used for processing the temperature signal and the environmental factor signal and transmitting the processed signals to the micro-processing unit;
the micro-processing unit is used for processing the processed temperature signals and the processed environmental factor signals by adopting a redundancy method and a data fusion algorithm;
the ambient factors of the temperature measuring equipment comprise wind speed, wind direction and ultraviolet light.
Preferably, the sensor module comprises a plurality of wind speed and direction sensors, an ultraviolet sensor and a temperature sensor, and the wind speed and direction sensors comprise a wind speed sensor and a wind direction sensor; the wind speed sensor is used for collecting wind speed in the ambient environment of the temperature measuring equipment, the wind direction sensor is used for collecting wind direction in the ambient environment of the temperature measuring equipment, the ultraviolet sensor is used for collecting ultraviolet light in the ambient environment of the temperature measuring equipment, and the temperature sensor is used for collecting the temperature of the temperature measuring equipment.
Preferably, the signal processing module includes wind signal processing unit, ultraviolet signal processing unit and temperature signal processing unit, wind signal processing unit is used for right the wind signal that wind speed and direction sensor gathered is handled, ultraviolet signal processing unit is used for right the ultraviolet signal that ultraviolet sensor gathered is handled, temperature signal processing unit is used for right the temperature signal that temperature sensor gathered is handled.
Preferably, the temperature measurement compensation system further comprises a power supply module, wherein the power supply module is used for supplying power to the micro-processing unit, the signal processing module and the sensor module.
The invention also provides a temperature measurement compensation device, which is applied to temperature measurement equipment and comprises a temperature measurement device body and a circuit board, wherein the temperature measurement compensation system is arranged on the temperature measurement device body which is of a rectangular structure; the circuit board is provided with a main temperature measuring system.
Preferably, the microprocessor unit of the main temperature measurement system adopts a redundancy method, wherein a temperature signal obtained by the main temperature measurement system is used as a main signal, and an environment factor signal obtained by the temperature measurement compensation system is used as an interference signal to be processed, so that the cross-sensitive output quantity of the temperature is obtained; and performing inverse solution on the cross sensitivity output quantity of the temperature by adopting a data fusion algorithm to obtain a measured temperature value after environmental factors are compensated.
Preferably, two slotted holes are formed in two sides of the top end face of the temperature measuring device body, one slotted hole is used for mounting the wind speed sensor, and the other slotted hole is used for mounting the wind direction sensor.
Preferably, at least four first mounting holes are formed in the top end face of the temperature measuring device body, the four first mounting holes are arranged in a rectangular array, and each first mounting hole is provided with an ultraviolet sensor.
Preferably, six end faces of the temperature measuring device body are provided with second mounting holes for mounting the temperature sensors.
Preferably, two sides of the inner part of the bottom end surface of the temperature measuring device body protrude to form connecting columns for mounting the circuit board.
According to the technical scheme, the embodiment of the invention has the following advantages: the temperature measurement compensation system comprises a micro-processing unit and a signal processing module connected with the micro-processing unit, wherein the signal processing module is also connected with a sensor module; the sensor module is used for collecting ambient environmental factors and temperature of the temperature measuring equipment to obtain a temperature signal and an environmental factor signal; the signal processing module is used for processing the temperature signal and the environmental factor signal and transmitting the processed signals to the micro-processing unit; and the micro-processing unit is used for processing the processed temperature signal and the processed environmental factor signal by adopting a redundancy method and a data fusion algorithm. The temperature measurement compensation system compensates the influence of the environmental factors on the temperature to the measured temperature value through collecting the environmental factors and the temperature, so that the accuracy and the reliability of temperature measurement are improved, and the technical problem that the temperature data obtained by measurement due to the influence of the environmental factors of the existing temperature measurement equipment is inaccurate is solved.
The temperature measurement compensation device obtains an environmental factor signal through the temperature measurement compensation system and processes the temperature signal obtained by the main temperature measurement system by adopting a redundancy method and a data fusion algorithm to obtain a measured temperature value after the environmental factor is compensated. The temperature measurement compensation device compensates the influence of the environmental factors on the temperature to the measured temperature value through collecting the environmental factors and the temperature, so that the accuracy and the reliability of temperature measurement are improved, and the technical problem that the temperature data obtained by measurement due to the influence of the environmental factors of the existing temperature measurement equipment is inaccurate is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a logic block diagram of a temperature measurement compensation system according to an embodiment of the present invention.
Fig. 2 is a logic block diagram of another temperature measurement compensation system according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a temperature measurement compensation device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below 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.
The embodiment of the application provides a temperature measurement compensation system and a temperature measurement compensation device, and the influence of environmental factors on the temperature measurement system is compensated to the temperature measurement system, so that the temperature measurement accuracy and reliability of the temperature measurement system are improved, and the technical problem that the temperature data obtained by the existing temperature measurement equipment due to the influence of the environmental factors is inaccurate is solved.
The first embodiment is as follows:
fig. 1 is a logic block diagram of a temperature measurement compensation system according to an embodiment of the present invention.
As shown in fig. 1, an embodiment of the invention provides a temperature measurement compensation system, which includes a micro processing unit 10 and a signal processing module 20 connected to the micro processing unit 10, wherein the signal processing module 20 is further connected to a sensor module 30;
the sensor module 30 is used for collecting ambient environmental factors and temperature of the temperature measuring equipment to obtain a temperature signal and an environmental factor signal;
the signal processing module 20 is used for processing the temperature signal and the environmental factor signal and transmitting the processed signals to the micro-processing unit 10;
the micro-processing unit 10 is used for processing the processed temperature signals and the processed environmental factor signals by adopting a redundancy method and a data fusion algorithm;
the ambient factors of the temperature measuring equipment comprise wind speed, wind direction and ultraviolet light.
In the embodiment of the invention, the temperature measurement compensation system mainly collects the environmental factor signal and the temperature signal around the temperature measurement equipment through the sensor module 30, processes the collected environmental factor signal and the temperature signal by adopting the signal processing module 20, and transmits the processed environmental factor signal and the processed temperature signal to the micro-processing unit 10 for processing to obtain the measured temperature value after the environmental factor is compensated.
It should be noted that the microprocessor unit 10 is mainly used for processing the processed environmental factor signal and the temperature signal by a redundancy method and a data fusion algorithm to obtain a measured temperature value after compensating the environmental factor, and compared with the temperature value obtained by directly measuring by using the existing temperature device, the temperature value has higher accuracy and higher reliability. In the present embodiment, the microprocessor unit 10 mainly employs a microprocessor to implement processing functions.
In the embodiment of the present invention, the sensor module 30 is mainly used for collecting the ambient environment factors and the temperature of the temperature measuring device.
It should be noted that the sensor module 30 mainly completes the collection of the ambient environment factors of the temperature measurement device, and provides compensation input for the temperature measurement compensation system.
In the embodiment of the present invention, the signal processing module 20 is mainly used for processing the collected environmental factor signal and the temperature signal, and the processed signals are convenient for the micro processing unit 10 to directly use.
It should be noted that the environmental factor signal and the temperature signal are processed by the signal processing module 20 and then output as output to the micro-processing unit 10 for processing and analysis.
The temperature measurement compensation system provided by the invention comprises a micro-processing unit and a signal processing module connected with the micro-processing unit, wherein the signal processing module is also connected with a sensor module; the sensor module is used for collecting ambient environmental factors and temperature of the temperature measuring equipment to obtain a temperature signal and an environmental factor signal; the signal processing module is used for processing the temperature signal and the environmental factor signal and transmitting the processed signals to the micro-processing unit; and the micro-processing unit is used for processing the processed temperature signal and the processed environmental factor signal by adopting a redundancy method and a data fusion algorithm. The temperature measurement compensation system compensates the influence of the environmental factors on the temperature to the measured temperature value through collecting the environmental factors and the temperature, so that the accuracy and the reliability of temperature measurement are improved, and the technical problem that the temperature data obtained by measurement due to the influence of the environmental factors of the existing temperature measurement equipment is inaccurate is solved.
It should be noted that the temperature measurement compensation system provided by the invention can compensate environmental factors for temperature measurement networks of different types and different properties, and the temperature measurement compensation system is widely applied.
In an embodiment of the present invention, the sensor module 30 includes a plurality of wind speed and direction sensors, an ultraviolet sensor and a temperature sensor, and the wind speed and direction sensors include a wind speed sensor and a wind direction sensor; the wind speed sensor is used for collecting wind speed in the ambient environment of the temperature measuring equipment, the wind direction sensor is used for collecting wind direction in the ambient environment of the temperature measuring equipment, the ultraviolet sensor is used for collecting ultraviolet light in the ambient environment of the temperature measuring equipment, and the temperature sensor is used for collecting temperature of the temperature measuring equipment.
The temperature sensor is preferably a platinum resistance sensor. The UV sensor is preferably a GUVA-S12SD patch type UV sensor, and in other embodiments, the UV sensor may be selected from a G365S02L sensor, a GUVB-T21GH sensor or a GUVC-T21GH sensor. The wind speed and direction sensor is preferably a W410C2 wind speed sensor.
In an embodiment of the present invention, the signal processing module 20 includes a wind signal processing unit, an ultraviolet signal processing unit and a temperature signal processing unit, the wind signal processing unit is configured to process the wind signal collected by the wind speed and wind direction sensor, the ultraviolet signal processing unit is configured to process the ultraviolet signal collected by the ultraviolet sensor, and the temperature signal processing unit is configured to process the temperature signal collected by the temperature sensor.
It should be noted that the ultraviolet signal processing unit is composed of an ultraviolet sensor, an operational amplifier TLV2761, a plurality of capacitors and a resistor, and is finally output and transmitted to the microprocessor of the micro-processing unit 10 through an output signal end of the operational amplifier TLV 2761. The main body of the temperature signal processing unit is an ambient temperature sensor chip TMP275, a temperature sensor and a corresponding processing circuit are integrated in the temperature sensor chip TMP275, and electronic components such as a plurality of capacitors and resistors are additionally arranged, so that communication is realized with the microprocessor of the micro-processing unit 10 through an I/O port of the temperature sensor chip TMP 275. The wind signal processing unit is composed of a mature integrated module and an external wind speed sensing probe (such as a module wind speed transmitter with the model number of W410F 1), and is communicated with a microprocessor of the micro-processing unit 10 through a UART serial port.
Fig. 2 is a logic block diagram of another temperature measurement compensation system according to an embodiment of the present invention.
As shown in fig. 2, in an embodiment of the present invention, the temperature measurement compensation system further includes a power supply module 40, and the power supply module 40 is used for supplying power to the micro processing unit 10, the signal processing module 20, and the sensor module 30.
Example two:
fig. 3 is a schematic structural diagram of a temperature measurement compensation device according to an embodiment of the present invention.
As shown in fig. 3, an embodiment of the present invention further provides a temperature measurement compensation device, which is applied to a temperature measurement device, and includes a temperature measurement device body 100 and a circuit board 200, wherein the temperature measurement compensation system is disposed on the temperature measurement device body 100, the temperature measurement device body 100 is rectangular, and the circuit board 200 is provided with a main temperature measurement system.
It should be noted that, the main temperature measurement system includes power supply module, micro-processing unit and the signal processing module who is connected with micro-processing unit, and the signal processing module still is connected with the sensor module, and the power supply module is used for supplying power for micro-processing unit, signal processing module, sensor module, and the main temperature measurement system mainly carries out the temperature measurement to the temperature measurement point of temperature measurement equipment. In this embodiment, the structures and principles of the power supply module, the micro-processing unit, the signal processing module and the sensor module are similar to or the same as those of the temperature measurement compensation system of the first embodiment, and are not described in this embodiment one by one.
In the embodiment of the invention, the microprocessor unit 10 of the main temperature measurement system adopts a redundancy method, namely the temperature signal of the main temperature measurement system is used as a main signal, and the environmental factor signal of the temperature measurement compensation system is used as an interference signal for processing, so as to obtain the cross-sensitive output quantity of the temperature; and performing inverse solution on the cross sensitivity output quantity of the temperature by adopting a data fusion algorithm to obtain a measured temperature value after environmental factors are compensated.
Note that, when the interference signal: the wind speed V is 3m/s, the illumination C is 250W/m2Ambient temperature θ0When the temperature is 15 ℃, obtaining a group of cross sensitivity output values of 15.7 ℃, 15.8 ℃ and 16.1 ℃, and substituting the cross sensitivity output values into an inverse solution formula to carry out inverse solution to obtain a temperature value P after compensating the environmental factors: 28.1 ℃, 28.5 ℃ and 29.8 ℃ (converted to standard environment without wind and illumination and with the environment temperature of 25 ℃).
The inverse solution formula is:
Pdl＝Kdl(θ-θ0)A；
Kdl＝6×V0.25；
Pfs＝σεf×(θ4-θ0 4)；
P＝Pfs+Pdl。
in the formula: theta0Is the temperature of the fluid medium (ambient temperature) of the temperature measuring device, theta is the temperature of the surface of the heating element of the temperature measuring device, A is the area m of the cooling surface of the temperature measuring device2，KdlIs the convective heat dissipation coefficient W (m)2K), σ is the Tech -Boltzmann constant W (m)2·K-4)，εfIs the emissivity. The emissivity is related to the surface condition and color of the heating element, and for an absolute black body, the radiation and absorption capacity is the strongest, epsilonf1 is ═ 1; for general objects, between 0 and 1. In this embodiment epsilonf＝0.276。
In the embodiment of the present invention, two slots 110 are disposed on two sides of the top end surface of the temperature measuring device body 100, one slot 110 is used for mounting the wind speed sensor, and the other slot 110 is used for mounting the wind direction sensor. At least four first mounting holes 120 are formed in the top end face of the temperature measuring device body 100, the four first mounting holes 120 are arranged in a rectangular array, and each first mounting hole 120 is provided with an ultraviolet sensor. Six end faces of the temperature measuring device body 100 are provided with second mounting holes 130 for mounting temperature sensors. The connecting column 140 for mounting the circuit board 200 is protruded from two sides of the bottom end surface of the temperature measuring device body 100.
In this embodiment, as shown in fig. 3, the temperature measurement compensation body 100 is a rectangular parallelepiped structure, and two slots 110 are reserved at the top position of the temperature measurement compensation body 100 for installing a wind speed sensor and a wind direction sensor for measuring the top wind speed and the wind direction of the temperature measurement compensation body 100. The top of the temperature measurement compensation body 100 is provided with a plurality of first mounting holes 120 for the ultraviolet sensors, which are used for mounting the ultraviolet sensor array and accurately collecting ultraviolet light in different directions. The temperature sensors form a temperature sensor array, are arranged on six end faces of the temperature measurement compensation body 100 and are used for detecting the ambient temperatures of different positions of the temperature measurement compensation body 100; the bottom of the temperature measurement compensation body 100 is distributed with 4 connecting posts 140, and the upper surfaces of the connecting posts 140 are provided with threaded holes for mounting the circuit board 200. The bottom of the temperature measurement compensation body 100 is also provided with a temperature measurement window matched with the circuit board 200 and used as a temperature measurement channel (non-contact type) or a temperature measurement joint point (contact type) of the circuit board 200.
According to the temperature measurement compensation device provided by the invention, the environment factor signal obtained by the temperature measurement compensation system and the temperature signal obtained by the main temperature measurement system are processed by adopting a redundancy method and a data fusion algorithm, so that the measured temperature value after the environment factor is compensated is obtained. The temperature measurement compensation device compensates the influence of the environmental factors on the temperature to the measured temperature value through collecting the environmental factors and the temperature, so that the accuracy and the reliability of temperature measurement are improved, and the technical problem that the temperature data obtained by measurement due to the influence of the environmental factors of the existing temperature measurement equipment is inaccurate is solved.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A temperature measurement compensation system is applied to temperature measurement equipment and is characterized by comprising a micro-processing unit and a signal processing module connected with the micro-processing unit, wherein the signal processing module is also connected with a sensor module;
the sensor module is used for collecting ambient environmental factors and temperature of the temperature measuring equipment to obtain a temperature signal and an environmental factor signal;
the signal processing module is used for processing the temperature signal and the environmental factor signal and transmitting the processed signals to the micro-processing unit;
the micro-processing unit is used for processing the processed temperature signals and the processed environmental factor signals by adopting a redundancy method and a data fusion algorithm;
the ambient factors of the temperature measuring equipment comprise wind speed, wind direction and ultraviolet light.
2. The temperature measurement compensation system of claim 1, wherein the sensor module comprises a plurality of wind speed and direction sensors, an ultraviolet sensor and a temperature sensor, and the wind speed and direction sensors comprise a wind speed sensor and a wind direction sensor; the wind speed sensor is used for collecting wind speed in the ambient environment of the temperature measuring equipment, the wind direction sensor is used for collecting wind direction in the ambient environment of the temperature measuring equipment, the ultraviolet sensor is used for collecting ultraviolet light in the ambient environment of the temperature measuring equipment, and the temperature sensor is used for collecting the temperature of the temperature measuring equipment.
3. The temperature measurement compensation system of claim 2, wherein the signal processing module comprises a wind signal processing unit, an ultraviolet signal processing unit and a temperature signal processing unit, the wind signal processing unit is used for processing the wind signal collected by the wind speed and wind direction sensor, the ultraviolet signal processing unit is used for processing the ultraviolet signal collected by the ultraviolet sensor, and the temperature signal processing unit is used for processing the temperature signal collected by the temperature sensor.
4. The temperature measurement compensation system of claim 1, further comprising a power supply module configured to supply power to the micro-processing unit, the signal processing module, and the sensor module.
5. A temperature measurement compensation device is applied to temperature measurement equipment and is characterized by comprising a temperature measurement device body and a circuit board, wherein the temperature measurement compensation system as claimed in any one of claims 1 to 4 is arranged on the temperature measurement device body, and the temperature measurement device body is of a rectangular structure; the circuit board is provided with a main temperature measuring system.
6. The temperature measurement compensation device according to claim 5, wherein the microprocessor unit of the main temperature measurement system adopts a redundancy method, and the temperature signal obtained by the main temperature measurement system is used as a main signal, and the environmental factor signal obtained by the temperature measurement compensation system is used as an interference signal to be processed, so as to obtain the cross-sensitive output quantity of the temperature; and performing inverse solution on the cross sensitivity output quantity of the temperature by adopting a data fusion algorithm to obtain a measured temperature value after environmental factors are compensated.
7. The temperature measurement compensation device of claim 5, wherein two slots are arranged on two sides of the top end face of the temperature measurement device body, one slot is used for mounting a wind speed sensor, and the other slot is used for mounting a wind direction sensor.
8. The temperature measurement compensation device of claim 5, wherein the top end surface of the temperature measurement device body is provided with at least four first mounting holes, the four first mounting holes are arranged in a rectangular array, and each first mounting hole is provided with an ultraviolet sensor.
9. The temperature measurement compensation device of claim 5, wherein six end faces of the temperature measurement device body are provided with second mounting holes for mounting the temperature sensor.
10. The temperature measurement compensation device of claim 5, wherein connection posts for mounting the circuit board are protruded from two sides of the bottom surface of the temperature measurement device body.
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