CN114577356A - High-sensitivity all-weather platinum wire resistance type temperature pulsation instrument based on gray wolf compensation algorithm - Google Patents
High-sensitivity all-weather platinum wire resistance type temperature pulsation instrument based on gray wolf compensation algorithm Download PDFInfo
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- CN114577356A CN114577356A CN202210206354.6A CN202210206354A CN114577356A CN 114577356 A CN114577356 A CN 114577356A CN 202210206354 A CN202210206354 A CN 202210206354A CN 114577356 A CN114577356 A CN 114577356A
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 241000282461 Canis lupus Species 0.000 title claims abstract description 33
- 230000010349 pulsation Effects 0.000 title claims abstract description 22
- 239000000523 sample Substances 0.000 claims abstract description 36
- 238000004891 communication Methods 0.000 claims abstract description 19
- 230000003321 amplification Effects 0.000 claims abstract description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 12
- 230000035945 sensitivity Effects 0.000 claims abstract 2
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims 1
- 238000005070 sampling Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 9
- 230000005855 radiation Effects 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 8
- 238000012546 transfer Methods 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/007—Testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/18—Testing or calibrating meteorological apparatus
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Biodiversity & Conservation Biology (AREA)
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Abstract
The invention discloses a high-sensitivity all-weather platinum wire resistance type temperature pulsation meter based on a gray wolf compensation algorithm, which comprises an all-weather platinum wire probe, a solar irradiation intensity detection sensor ML8511, a signal amplification unit, an AD acquisition unit and a signal processing and communication interface unit. The all-weather platinum wire probe comprises a high-purity platinum wire with the diameter of 2mm, 4 small circuit boards and a BNC connector, wherein the probe is designed to form a unique umbrella-shaped structure by adopting four small circuit boards and the BNC connector. The invention has the advantages that: the ML8511 sensor is adopted to eliminate the problem of circuit temperature rise caused by solar radiation, the problem of platinum wire probe detection hysteresis is solved by fusing a wolf's head compensation algorithm to a signal amplification unit to construct a four-order active high-pass filter with optimal parameters, the measurement precision and sensitivity of the temperature fluctuation instrument are improved, and the problem that the platinum wire probe is easily damaged when the temperature fluctuation instrument works outdoors is solved by adopting an umbrella-shaped design structure of the platinum wire probe.
Description
Technical Field
The invention relates to an experimental measuring instrument and a compensation method for atmospheric turbulence intensity, in particular to a high-sensitivity all-weather platinum wire resistance type temperature pulsation instrument based on a gray wolf compensation algorithm.
Background
At present, with the rapid development of the optical field, the research of optical turbulence is gradually paid attention to, and a platinum wire type temperature pulsation instrument is an instrument for measuring the atmospheric refractive index structural constant by using a double-point temperature measurement principle to represent the atmospheric turbulence intensity.
The traditional platinum wire type temperature pulsation instrument uses a fine platinum wire as a temperature measuring material, has the advantages of rapid response, linear output and the like, but when the platinum wire type temperature pulsation instrument works under extreme outdoor weather conditions such as rain, snow and the like, the existing design mode of the platinum wire probe is not protected and is very easy to damage. In addition, a sudden change in solar radiation can have an effect on the measurement of platinum wire induced temperature changes. The invention effectively prolongs the service life of the platinum wire probe through the unique design of the platinum wire protection probe, and ensures that the instrument can normally work under extreme weather conditions. The method adopts the technology of combining a sensor and an algorithm, adopts an ML8511 sensor, detects the illumination intensity by converting photocurrent into voltage, sends the voltage data detected in real time into a single chip microcomputer, realizes the compensation of the illumination intensity by fusing a compensation algorithm, and solves the problem of influence of sudden change of the illumination intensity on the measurement of an instrument
Due to the design mode of the platinum wire probe, the front-end amplifying circuit has certain hysteresis quality in sensing temperature change, and therefore a gray wolf compensation algorithm is innovatively adopted. The grey wolf algorithm is a novel group intelligent optimization algorithm, and the purpose of optimization is finally achieved by simulating hunting behaviors of the grey wolf group, the grey wolf group sorts grey wolf individuals from high to low according to a strict grade system of the grey wolf group, each grey wolf individual respectively calculates the position of the grey wolf individual and a prey, so that the grey wolf group can surround the prey and attack the prey in all directions, the precise position of the prey is finally positioned, the prey is successfully captured, the optimal compensation system transfer function parameter value is calculated through multiple iterations, the measured data of a platinum wire probe and the measured data of a platinum wire are compared to construct a transfer function of a temperature pulsometer system, the optimal dynamic compensation filter of the system is designed through the iteration calculation of the grey wolf compensation algorithm, and the problem of hysteresis of the platinum wire probe sensing temperature change is solved.
Disclosure of Invention
The invention aims to design a high-sensitivity all-weather platinum wire resistance type temperature pulsation instrument based on a gray wolf compensation algorithm to solve the problems.
In order to meet the requirements, the technical scheme provided by the invention is as follows: a platinum wire resistance type temperature pulsation instrument with solar irradiation and air pressure temperature compensation functions comprises a full-weather platinum wire probe, an ML8511 sensor, a single chip microcomputer, a signal amplification unit, an AD acquisition unit and a signal processing and communication interface unit.
The umbrella-shaped platinum wire probe designed by the invention adopts the platinum wire probe which is formed by the cotton wire and the small circuit board and has a similar umbrella-shaped structure, so that the platinum wire can be protected under the multi-weather condition, and the cotton wire and the fishing wire play a role in buffering to protect the platinum wire under the extreme weather conditions of rain, snow, strong wind and the like, thereby effectively prolonging the service life of the platinum wire probe.
According to the invention, the ML8511 sensor module is placed at the same horizontal line distance with the platinum wire probe to detect the temperature difference caused by the solar radiation intensity, the solar radiation intensity measured by the single chip microcomputer sensor is sent to the upper computer, and the upper computer calculates the temperature influence caused by the solar radiation through a temperature compensation algorithm to compensate the temperature, so that the system error is reduced.
The signal amplification unit designed by the invention adopts a Wheatstone bridge mode to connect a full-weather platinum wire probe, the platinum wire probe changes the voltage value in a temperature change conversion circuit, the umbrella-shaped platinum wire probe and the outdoor actual measurement signal of a common platinum wire are recorded, the actual measurement data of the umbrella-shaped platinum wire probe is taken as the input signal of a dynamic compensation filter, the actual measurement data of the common platinum wire is taken as the output signal of the dynamic compensation filter, iterative calculation is carried out through a grey wolf algorithm, wherein the grey wolf compensation algorithm sets the population size to be 100, the maximum iterative times are 20000, the grey wolf population captures a plurality of experimental data, each grey wolf individual carries out iterative calculation continuously according to a fitness function to obtain an optimal function value, finally, an optimal dynamic compensation filter is successfully constructed, the filter circuit parameter in the signal amplification unit sets the optimal transfer function value calculated according to the grey wolf algorithm, finally, dynamic compensation is carried out on the time response of the platinum wire probe to induce the temperature change, and the system error of the temperature pulsation instrument is reduced.
The AD acquisition unit designed by the invention adopts a high-precision acquisition chip ADS1256 with 24-bit AD acquisition precision to acquire the voltage value at a high speed, so that the response frequency of a temperature pulsator instrument can reach 30HZ, and the baud rate of the AD acquisition unit is set to be 115200.
The signal processing and communication interface unit is externally connected with a sensor BME680 to measure the ambient temperature and the atmospheric pressure, an AD acquisition value, the ambient temperature and the atmospheric pressure are uniformly transmitted to an upper computer through a single chip microcomputer according to an RS485 communication mode, and software in the upper computer draws an atmospheric refractive index structural constant curve. The singlechip communicates with the 4G communication module through a serial port, so that the working condition of the platinum wire type temperature pulsation instrument can be remotely monitored.
Drawings
FIG. 1 is a schematic block diagram of a temperature pulsation instrument
FIG. 2 is a schematic diagram of the influence of light on a platinum wire probe
FIG. 3 is a schematic diagram of a platinum wire probe structure
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings
As shown in figure 1, the invention comprises two all-weather platinum wire probes, a solar radiation intensity detection sensor ML8511, a signal amplification unit, an AD acquisition unit and a signal processing and communication interface unit. Two all-weather platinum wire probes are connected to a signal amplification unit in a Wheatstone bridge connection mode, a solar irradiation intensity detection sensor ML8511 is placed on the two sides of the platinum wire probes and transmits the solar irradiation intensity of the platinum wire probes to a single chip microcomputer in the signal amplification unit in real time, the single chip microcomputer in the signal amplification unit reduces errors caused by solar irradiation through a solar irradiation intensity calculation formula and processes the errors through a temperature compensation algorithm, a population size of a wolf's head compensation algorithm is set to be 100, the maximum iteration time is 20000, a plurality of times of experimental data of the platinum wire probes and the platinum wire induced temperature changes are compared and optimized, finally, a wolf's head algorithm obtains an optimal compensation system transfer function through iterative calculation, a dynamic compensation filter with proper parameters is constructed in the signal amplification unit according to the parameter values of the transfer function, the optimal filtering effect is achieved, an AD acquisition unit acquires the voltage signal from the signal amplification unit at the baud rate of 115200, the AD acquisition unit adopts a high-precision acquisition chip ADS1256 with 24-bit AD acquisition precision to acquire signals and then sends voltage signals to the signal processing and communication interface unit, the signal processing and communication interface unit is externally connected with environmental parameters such as environmental temperature, atmospheric pressure, atmospheric humidity and the like which can be collected by an external sensor BME680, a built-in filter circuit is used for filtering signals, finally, the signal processing and communication interface unit uniformly packages all parameter values of voltage parameters, environmental temperature, atmospheric pressure and atmospheric humidity which are sent by an AD collection unit according to a data format agreed with an upper computer, the voltage parameters, the environmental temperature, the atmospheric pressure and the atmospheric humidity are communicated with the upper computer according to a 485 communication protocol to send data to the upper computer, the upper computer performs subsequent data processing according to a calculation formula of the atmospheric refractive index structural constant to calculate the value of the atmospheric refractive index structural constant, and an atmospheric refractive index structural constant change curve is generated.
As shown in FIG. 2, the design mode of the platinum wire probe can accurately detect weak temperature changes of two local points in the space, the ML8511 ultraviolet sensors are placed on two sides of the platinum wire probe and can accurately detect the influence of solar radiation on the platinum wire, and the single chip microcomputer which transmits relevant parameters to the signal amplification unit can eliminate measurement errors caused by the solar radiation to the temperature pulsator by using a temperature compensation algorithm.
As shown in figure 3, the design of all-weather platinum wire probe is including four small-size circuit boards (1), and fishing line (2) pass four small-size circuit boards and form unique umbrella-shaped structure and have certain guard action to platinum wire (3), and the platinum wire winding is on cotton thread (4), and the cotton thread can play the fixed action to the platinum wire for the platinum wire can not remove along with the wind-blowing when temperature pulsation appearance is at outdoor work, has promoted instrument measurement stability. The waterproof base (5) is used for protecting the probe to normally work in rainy and snowy weather, the metal support (6) has a good fixing effect, and can be directly connected with the signal amplification unit through the metal support to perform subsequent signal processing. The full-meteorological platinum wire probe designed by the mode is very durable and suitable for various weather conditions, and can quickly sense the weak temperature change of a local space to improve the measurement accuracy of an instrument.
Claims (9)
1. The utility model provides a high sensitivity is all meteorological platinum silk resistance-type temperature pulsation appearance based on grey wolf compensation algorithm which characterized in that: comprises a full weather platinum wire probe, an ML8511 ultraviolet sensor chip, a signal amplifying unit, an AD acquisition unit and a signal processing and communication interface unit.
The number of the all-weather platinum wire probes is two, and the ML8511 ultraviolet sensor chip is connected with the front end of the signal amplification unit.
2. The highly sensitive all-weather platinum wire resistance temperature pulsation instrument based on the gray wolf compensation algorithm as claimed in claim 1, wherein: the signal amplification unit comprises a single chip microcomputer fused with a temperature compensation algorithm, a four-order high-pass filter circuit designed by calculation of a gray wolf compensation algorithm, and an INA333 low-power consumption precision instrument amplifier.
3. The highly sensitive all-weather platinum wire resistance temperature pulsation instrument based on the gray wolf compensation algorithm as claimed in claim 1, wherein: the AD acquisition unit comprises an analog-to-digital conversion unit and a high-precision AD acquisition chip ADS 1256.
4. The highly sensitive all-weather platinum wire resistance temperature pulsation instrument based on the gray wolf compensation algorithm as claimed in claim 3, wherein: the high-precision AD acquisition chip has the acquisition digit of 14 bits and the sampling frequency of not less than 30 HZ.
5. The high-sensitivity all-weather platinum wire resistance temperature pulsation instrument based on the gray wolf compensation algorithm as claimed in claim 1, wherein: the signal processing and communication interface unit comprises a single chip microcomputer micro control module, a 485 communication interface module and a 4G communication module.
6. The highly sensitive all-weather platinum wire resistance temperature pulsation instrument based on the gray wolf compensation algorithm according to claim 5, wherein: the number of the digital I/O ports of the micro-control module of the single chip microcomputer is at least two, and the external interface of the single chip microcomputer is connected with a temperature and air pressure sensor BME680 and an LCD data display screen.
7. The highly sensitive all-weather platinum wire resistance temperature pulsation instrument based on the gray wolf compensation algorithm according to claim 5, wherein: the 485 communication interface module comprises an SP3485 chip.
8. The highly sensitive all-weather platinum wire resistance temperature pulsation instrument based on the gray wolf compensation algorithm according to claim 5, wherein: the 4G communication module comprises a 4G module WH-LTE-7S 4.
9. The highly sensitive all-weather platinum wire resistance temperature pulsation instrument based on the gray wolf compensation algorithm as claimed in claim 1, wherein: the signal processing and communication interface unit comprises an upper computer which is remotely connected with the single chip microcomputer through a 4G communication module, and data of a 485 communication protocol sent by the single chip microcomputer are processed and calculated to display an atmospheric refractive index structural constant curve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210206354.6A CN114577356A (en) | 2022-03-07 | 2022-03-07 | High-sensitivity all-weather platinum wire resistance type temperature pulsation instrument based on gray wolf compensation algorithm |
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|---|---|---|---|
| CN202210206354.6A CN114577356A (en) | 2022-03-07 | 2022-03-07 | High-sensitivity all-weather platinum wire resistance type temperature pulsation instrument based on gray wolf compensation algorithm |
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| CN114577356A true CN114577356A (en) | 2022-06-03 |
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| CN202210206354.6A Pending CN114577356A (en) | 2022-03-07 | 2022-03-07 | High-sensitivity all-weather platinum wire resistance type temperature pulsation instrument based on gray wolf compensation algorithm |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944323A (en) * | 2012-11-18 | 2013-02-27 | 中国人民解放军63655部队 | Temperature fluctuation instrument based on true root-mean-square converter |
| CN113758595A (en) * | 2020-12-02 | 2021-12-07 | 长春理工大学 | Resistance-type temperature pulsation appearance with solar irradiation and atmospheric pressure temperature compensation function |
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2022
- 2022-03-07 CN CN202210206354.6A patent/CN114577356A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944323A (en) * | 2012-11-18 | 2013-02-27 | 中国人民解放军63655部队 | Temperature fluctuation instrument based on true root-mean-square converter |
| CN113758595A (en) * | 2020-12-02 | 2021-12-07 | 长春理工大学 | Resistance-type temperature pulsation appearance with solar irradiation and atmospheric pressure temperature compensation function |
Non-Patent Citations (1)
| Title |
|---|
| 韩太林 等: "改进型灰狼算法在热电偶动态补偿中的应用", 《控制与决策》 * |
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