Liquid antenna based ambient temperature measurement method and apparatus

Abstract

This invention proposes a method and apparatus for measuring ambient temperature based on a liquid antenna, belonging to the field of temperature measurement technology. The method includes: installing a liquid antenna in the environment to be tested; calibrating the correspondence between the resonant frequency of the liquid antenna and the ambient temperature; determining a first resonant frequency corresponding to a preset ambient temperature value based on the calibrated correspondence; measuring a second resonant frequency of the liquid antenna; calculating the difference between the second resonant frequency and the first resonant frequency; and determining whether the difference is within a preset limit range. If so, the ambient temperature is deemed acceptable; otherwise, the ambient temperature is deemed unacceptable. This invention, as a whole, can eliminate test errors introduced by sensor performance aging while ensuring test consistency and accuracy, significantly improving test efficiency and measurement accuracy, and reducing test costs.

Description

Technical Field

[0001] This invention relates to the field of temperature measurement technology, and more particularly to an environmental temperature measurement method and apparatus based on a liquid antenna. Background Technology

[0002] This section is intended to provide background or context for the embodiments of the invention set forth in the claims. The description herein is not an admission that it is prior art simply because it is included in this section.

[0003] Traditional ambient temperature detection typically relies on the direct acquisition of ambient temperature data using various deployed temperature sensors. A temperature sensor is a sensor that senses temperature and converts it into a usable output signal. Currently, commonly used temperature sensors in the industry include various contact temperature sensors, such as thermometers, as well as electronic sensors based on various temperature-sensing elements.

[0004] Thermometers achieve thermal equilibrium through conduction or convection, allowing their readings to directly represent the temperature of the object being measured, thus offering high measurement accuracy. However, the main drawback of ambient temperature testing methods based on thermometers is that the readings typically require visual inspection. Therefore, temperature readings are difficult to obtain in some concealed installation locations, such as inside equipment, at high points indoors, or where they are obstructed by other equipment. Using high-definition cameras for data acquisition would increase testing costs.

[0005] For electronic sensors based on various temperature-sensing elements, the thermoelectric properties of these elements allow temperature changes to alter their electrical characteristics, thus converting non-electrical physical quantities into electrical signals for accurate ambient temperature measurement. This method offers advantages such as a wide measurement range, fast testing speed, and the ability to perform long-distance measurements and data transmission. However, the main drawbacks of this temperature testing method include: testing errors introduced by sensor aging over long-term use; long-term reliance on imported sensors for certain chips (such as MEMS (Micro-Electro-Mechanical Systems) infrared temperature sensors); easy interference from external environmental signals; the influence of preamplifier temperature drift; and the need for batteries or cables to continuously power the sensor.

[0006] In summary, there is an urgent need for a technical solution that can overcome the above-mentioned shortcomings and improve the method of measuring ambient temperature. Summary of the Invention

[0007] To address the problems existing in the prior art, this invention proposes an environmental temperature measurement method and device based on a liquid antenna.

[0008] In a first aspect of the present invention, an environmental temperature measurement method based on a liquid antenna is proposed, comprising:

[0009] Install the liquid antenna in the environment to be tested;

[0010] The relationship between the resonant frequency of a calibrated liquid antenna and ambient temperature;

[0011] Based on the established relationship between the resonant frequency and the ambient temperature, determine the first resonant frequency corresponding to the preset ambient temperature value.

[0012] Measure the second resonant frequency of the liquid antenna, calculate the difference between the second resonant frequency and the first resonant frequency, and determine whether the difference is within a preset limit range; if yes, determine that the ambient temperature is qualified; if no, determine that the ambient temperature is unqualified.

[0013] In a second aspect of the present invention, an ambient temperature measurement device based on a liquid antenna is provided, comprising:

[0014] Liquid antenna, installed in the environment under test;

[0015] The calibration module is used to calibrate the relationship between the resonant frequency of the liquid antenna and the ambient temperature.

[0016] The setting module is used to determine the first resonant frequency corresponding to the preset ambient temperature value based on the correspondence between the calibrated resonant frequency and the ambient temperature.

[0017] The measurement module is used to measure the second resonant frequency of the liquid antenna, calculate the difference between the second resonant frequency and the first resonant frequency, and determine whether the difference is within a preset limit range; if yes, the ambient temperature is deemed acceptable; if no, the ambient temperature is deemed unacceptable.

[0018] In a third aspect of the present invention, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement an ambient temperature measurement method based on a liquid antenna.

[0019] In a fourth aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing a computer program that, when executed by a processor, implements an ambient temperature measurement method based on a liquid antenna.

[0020] In a fifth aspect of the present invention, a computer program product is provided, the computer program product comprising a computer program that, when executed by a processor, implements an ambient temperature measurement method based on a liquid antenna.

[0021] The present invention proposes an ambient temperature measurement method and apparatus based on a liquid antenna. This involves installing a liquid antenna in the environment under test; calibrating the relationship between the resonant frequency of the liquid antenna and the ambient temperature; determining a first resonant frequency corresponding to a preset ambient temperature value based on the calibrated relationship; measuring a second resonant frequency of the liquid antenna; calculating the difference between the second and first resonant frequencies; and determining whether the difference is within a preset limit. If so, the ambient temperature is deemed acceptable; otherwise, it is deemed unacceptable. The overall solution of this invention can eliminate test errors introduced by sensor performance aging while ensuring test consistency and accuracy, significantly improving test efficiency and measurement accuracy, and reducing test costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic flowchart of an environmental temperature measurement method based on a liquid antenna according to an embodiment of the present invention.

[0024] Figure 2 This is a schematic flowchart illustrating the relationship between the resonant frequency of a calibrated liquid antenna and ambient temperature according to an embodiment of the present invention.

[0025] Figure 3 This is a schematic flowchart of a process for determining the ambient temperature measurement result when multiple liquid antennas are installed in the environment to be tested, according to an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of the architecture of an ambient temperature measurement device based on a liquid antenna according to an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of a computer device structure according to an embodiment of the present invention. Detailed Implementation

[0028] The principles and spirit of the invention will now be described with reference to several exemplary embodiments. It should be understood that these embodiments are given merely to enable those skilled in the art to better understand and implement the invention, and are not intended to limit the scope of the invention in any way. Rather, these embodiments are provided to make this disclosure more thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art.

[0029] Those skilled in the art will recognize that embodiments of the present invention can be implemented as a system, apparatus, device, method, or computer program product. Therefore, this disclosure can be specifically implemented in the following forms: entirely hardware, entirely software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.

[0030] According to embodiments of the present invention, an environmental temperature measurement method and apparatus based on a liquid antenna are proposed, relating to the field of temperature measurement technology. This invention is based on the physical property of thermal expansion and contraction of liquid conductors, a fundamental physical property of matter that does not degrade with prolonged use. Furthermore, this scheme achieves long-distance measurement and data transmission of environmental temperature based on precise measurement of the resonant characteristics of the liquid antenna. Compared to traditional temperature measurement schemes based on electronic sensors, this scheme is a passive measurement method, requiring no batteries or cables to continuously power the liquid antenna, thereby reducing the complexity of test setup and maintenance, and lowering testing / usage costs.

[0031] By replacing the traditional temperature sensor-based testing scheme with this invention, testing errors caused by sensor aging can be eliminated while ensuring test consistency and accuracy, significantly improving testing efficiency and measurement accuracy, and reducing testing costs.

[0032] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0033] Figure 1 This is a schematic flowchart of an environmental temperature measurement method based on a liquid antenna according to an embodiment of the present invention. Figure 1 As shown, the method includes:

[0034] S101, Install the liquid antenna in the environment under test;

[0035] S102, Calibrate the relationship between the resonant frequency of the liquid antenna and the ambient temperature;

[0036] S103, Based on the calibrated relationship between the resonant frequency and the ambient temperature, determine the first resonant frequency corresponding to the preset ambient temperature value.

[0037] S104, Measure the second resonant frequency of the liquid antenna, calculate the difference between the second resonant frequency and the first resonant frequency, and determine whether the difference is within a preset limit range;

[0038] S105, if yes, the ambient temperature is deemed acceptable;

[0039] S106, if not, the ambient temperature is deemed unqualified.

[0040] Based on the physical properties of thermal expansion and contraction of liquid conductors, this invention calibrates the resonant frequency-temperature characteristic curve of a liquid antenna, converting the temperature characteristics to the frequency domain. Then, by measuring the resonant characteristics of the liquid antenna, the resonant frequency is used as a judgment index, and it is determined whether the difference between the resonant frequency and the preset frequency limit is within the specified range, thereby determining whether the ambient temperature is within the acceptable range.

[0041] To provide a clearer explanation of the above-described method for measuring ambient temperature based on a liquid antenna, each step will be described in detail below.

[0042] In one embodiment, reference Figure 2 The specific procedure for calibrating the relationship between the resonant frequency of the liquid antenna and the ambient temperature (S102) is as follows:

[0043] S201 simultaneously acquires the resonant frequency of the liquid antenna and the ambient temperature of the environment under test through a vector network analyzer and a temperature sensor.

[0044] S202, Adjust the ambient temperature and collect the resonant frequency of the liquid antenna at different ambient temperatures;

[0045] S203, based on the collected ambient temperature and the resonant frequency of the liquid antenna, calibrate the correspondence between the resonant frequency of the liquid antenna and the ambient temperature.

[0046] In practical applications, when the position of the liquid antenna changes, the relationship between the resonant frequency of the liquid antenna and the ambient temperature needs to be recalibrated.

[0047] Since the operating environment of liquid antennas varies at each location, the corresponding relationships need to be recalibrated when the installation location of the liquid antenna changes.

[0048] In one embodiment, (S203) based on the collected ambient temperature and the resonant frequency of the liquid antenna, the correspondence between the resonant frequency of the liquid antenna and the ambient temperature is calibrated, including:

[0049] During calibration, the ambient temperature changes in increments of 1°C, with the range of temperature change being ±20°C of a preset range. The resonant characteristics of the liquid antenna are repeatedly tested by changing the ambient temperature in increments.

[0050] The relationship between the resonant frequency of the liquid antenna and the ambient temperature is calibrated by performing linear fitting or fitting according to a cubic polynomial based on the collected ambient temperature and the resonant frequency of the liquid antenna.

[0051] In one embodiment, the liquid antenna is made of mercury or alcohol.

[0052] Other materials can also be used for the liquid antenna, that is, any material that can measure the resonant frequency of the liquid antenna and calibrate the relationship between the resonant frequency and the ambient temperature can be used as the liquid antenna of this invention.

[0053] In one embodiment, since a single test antenna may fail and affect the test results, multiple antennas can be installed in the environment under test. This allows for the improvement of the accuracy of the test results through multiple test targets and adaptive calculation methods, preventing the test results from being affected by the failure of a single test antenna.

[0054] refer to Figure 3 The specific method is as follows:

[0055] S301, when multiple liquid antennas are installed in the environment under test, measure the resonant frequency of each liquid antenna; wherein each liquid antenna is located at a different test position;

[0056] S302, Based on the correspondence between the resonant frequency of the calibrated liquid antenna at each test location and the ambient temperature, determine the ambient temperature at the corresponding installation location of each liquid antenna.

[0057] S303, determine the ambient temperature measurement results based on the ambient temperature at the corresponding installation location of each liquid antenna. Specifically, when determining the ambient temperature measurement results, a weighted average or linear average of the ambient temperature at the corresponding installation location of each liquid antenna can be calculated.

[0058] Taking the calculation of the weighted average as an example, (S303) the specific process for determining the ambient temperature measurement results based on the ambient temperature at the corresponding installation location of each liquid antenna is as follows:

[0059] Calculate the weighted average of the ambient temperature at multiple test locations;

[0060] Specifically, taking the ambient temperature at N test locations as an example, the ambient temperature at each test location is denoted as T. i Let the preset temperature be denoted as T0, and the preset temperature range be denoted as T0±ΔT. Calculate abs(T i -T0), and will satisfy abs(T) i All Ts where -T0)>ΔT i , from T0+max(abs(T i Instead of -T0), calculate T again. i -T0. The weight at each test location is denoted as:

[0061]

[0062] When liquid antennas are installed at N test locations in the environment, determine whether the weighted average of the ambient temperature at the N test locations is within a preset temperature range; at the same time, determine whether the test results at at least M test locations are within the preset temperature range.

[0063] Wherein, when N > 20, M = N - 3; when 20 ≥ N ≥ 12, M = N - 2; when 12 > N ≥ 5, M = N - 1; when N < 5, M = N;

[0064] If the weighted average of the ambient temperatures at N test locations is within the preset temperature range, and the test results at at least M test locations are within the preset temperature range, the ambient temperature is deemed to be qualified.

[0065] If the weighted average of the ambient temperatures at N test locations is not within the preset temperature range, or if the test results at more than NM test locations are not within the preset temperature range, the ambient temperature is deemed unqualified.

[0066] Taking the calculation of the linear average value as an example, (S303) the specific process for determining the ambient temperature measurement results based on the ambient temperature at the corresponding installation location of each liquid antenna is as follows:

[0067] Calculate the linear average of the ambient temperature at multiple test locations;

[0068] When liquid antennas are installed at N test locations in the environment, determine whether the linear average of the ambient temperature at the N test locations is within a preset temperature range; at the same time, determine whether the test results at at least M test locations are within the preset temperature range.

[0069] Wherein, when N > 20, M = N - 3; when 20 ≥ N ≥ 12, M = N - 2; when 12 > N ≥ 5, M = N - 1; when N < 5, M = N;

[0070] If the linear average of the ambient temperature at N test locations is within the preset temperature range, and the test results at at least M test locations are within the preset temperature range, the ambient temperature is deemed to be qualified.

[0071] If the linear average of the ambient temperature at N test locations is not within the preset temperature range, or if the test results at more than NM test locations are not within the preset temperature range, the ambient temperature is deemed unqualified.

[0072] It should be noted that although the operation of the method of the present invention has been described in a specific order in the above embodiments and figures, this does not require or imply that the operations must be performed in that specific order, or that all the operations shown must be performed to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps.

[0073] After introducing the method of exemplary embodiments of the present invention, the following references are made. Figure 4 An exemplary embodiment of the present invention, an ambient temperature measurement device based on a liquid antenna, will be described.

[0074] The implementation of the ambient temperature measurement device based on the liquid antenna can refer to the implementation of the method described above, and the repetitions will not be repeated. The term "module" or "unit" used below can refer to a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0075] Based on the same inventive concept, this invention also proposes an ambient temperature measurement device based on a liquid antenna, such as... Figure 4 As shown, the device includes:

[0076] Liquid antenna 410, installed in the environment under test;

[0077] Calibration module 420 is used to calibrate the relationship between the resonant frequency of the liquid antenna and the ambient temperature;

[0078] The setting module 430 is used to determine the first resonant frequency corresponding to the preset ambient temperature value based on the correspondence between the calibrated resonant frequency and the ambient temperature.

[0079] The measurement module 440 is used to measure the second resonant frequency of the liquid antenna, calculate the difference between the second resonant frequency and the first resonant frequency, and determine whether the difference is within a preset limit range; if yes, the ambient temperature is deemed qualified; if no, the ambient temperature is deemed unqualified.

[0080] It should be noted that although several modules of the ambient temperature measurement device based on a liquid antenna have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of the invention, the features and functions of two or more modules described above can be embodied in a single module. Conversely, the features and functions of a single module described above can be further divided and embodied by multiple modules.

[0081] Based on the aforementioned inventive concept, such as Figure 5As shown, the present invention also proposes a computer device 500, including a memory 510, a processor 520, and a computer program 530 stored in the memory 510 and executable on the processor 520. When the processor 520 executes the computer program 530, it implements the aforementioned ambient temperature measurement method based on a liquid antenna.

[0082] Based on the aforementioned inventive concept, the present invention proposes a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the aforementioned environmental temperature measurement method based on a liquid antenna.

[0083] Based on the aforementioned inventive concept, the present invention proposes a computer program product, which includes a computer program that, when executed by a processor, implements an environmental temperature measurement method based on a liquid antenna.

[0084] The present invention proposes an ambient temperature measurement method and apparatus based on a liquid antenna. This involves installing a liquid antenna in the environment under test; calibrating the relationship between the resonant frequency of the liquid antenna and the ambient temperature; determining a first resonant frequency corresponding to a preset ambient temperature value based on the calibrated relationship; measuring a second resonant frequency of the liquid antenna; calculating the difference between the second and first resonant frequencies; and determining whether the difference is within a preset limit. If so, the ambient temperature is deemed acceptable; otherwise, it is deemed unacceptable. The overall solution of this invention can eliminate test errors introduced by sensor performance aging while ensuring test consistency and accuracy, significantly improving test efficiency and measurement accuracy, and reducing test costs.

[0085] The acquisition, storage, use, and processing of data in this application all comply with the relevant provisions of national laws and regulations.

[0086] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, apparatus, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0087] This invention is described with reference to flowchart illustrations and / or block diagrams of methods and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0088] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0089] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0090] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method of measuring ambient temperature based on a liquid antenna, characterized by, The method comprises the following steps: installing a liquid antenna in a to-be-tested environment; calibrating the correspondence between the resonant frequency of the liquid antenna and the ambient temperature; determining the first resonant frequency corresponding to a preset ambient temperature value according to the calibrated correspondence between the resonant frequency and the ambient temperature; measuring the second resonant frequency of the liquid antenna, calculating the difference between the second resonant frequency and the first resonant frequency, and determining whether the difference is within a preset limited value range; if yes, determining that the ambient temperature is qualified; if no, determining that the ambient temperature is unqualified; wherein the calibration of the correspondence between the resonant frequency of the liquid antenna and the ambient temperature comprises the following steps: collecting the resonant frequency of the liquid antenna and the ambient temperature of the to-be-tested environment simultaneously through a vector network analyzer and a temperature sensor respectively; adjusting the ambient temperature, collecting different ambient temperatures and the resonant frequency of the liquid antenna under the ambient temperature respectively; calibrating the correspondence between the resonant frequency of the liquid antenna and the ambient temperature according to the collected ambient temperature and the resonant frequency of the liquid antenna; wherein the calibration of the correspondence between the resonant frequency of the liquid antenna and the ambient temperature according to the collected ambient temperature and the resonant frequency of the liquid antenna comprises the following steps: when calibrating, the ambient temperature changes by 1℃ each time, and the change range of the ambient temperature is ±20℃ of the preset temperature range; the ambient temperature is changed by steps to repeatedly test the resonant characteristics of the liquid antenna; linear fitting or cubic polynomial fitting is performed according to the collected ambient temperature and the resonant frequency of the liquid antenna to calibrate the correspondence between the resonant frequency of the liquid antenna and the ambient temperature.

2. The method of claim 1, wherein, The method further comprises the following steps: when the position of the liquid antenna changes, recalibrating the correspondence between the resonant frequency of the liquid antenna and the ambient temperature.

3. The method of claim 1, wherein, The method further comprises the following steps: when multiple liquid antennas are installed in the to-be-tested environment, the resonant frequencies of the liquid antennas are measured; wherein each liquid antenna is located at a different test position; according to the calibrated correspondence between the resonant frequency of the liquid antenna and the ambient temperature corresponding to each test position, the ambient temperature at the installation position of each liquid antenna is determined; according to the ambient temperature at the installation position of each liquid antenna, the ambient temperature measurement result is determined.

4. The method of claim 3, wherein, According to the ambient temperature at the installation position of each liquid antenna, the ambient temperature measurement result is determined, which comprises the following steps: calculating the weighted average value of the ambient temperatures of the multiple test positions; when there are N test positions for installing liquid antennas in the environment, it is determined whether the weighted average value of the ambient temperatures of the N test positions is within a preset temperature range; at the same time, it is determined whether the test results of at least M test positions are within the preset temperature range; wherein when N>20, M=N-3; when 20≥N≥12, M=N-2; when 12>N≥5, M=N-1; and when N<5, M=N; if the weighted average value of the ambient temperatures of the N test positions is within the preset temperature range, and the test results of at least M test positions are within the preset temperature range, it is determined that the ambient temperature is qualified. If the weighted average of the environmental temperatures of the N test positions is not within the preset temperature range, or if more than N-M test positions have test results not within the preset temperature range, it is determined that the environmental temperature is unqualified.

5. The method of claim 3, wherein, According to the environmental temperature at the installation position corresponding to each liquid antenna, an environmental temperature measurement result is determined, including: A linear average of the environmental temperatures of the multiple test positions is calculated; When N liquid antennas are installed at N test positions in the environment, it is determined whether the linear average of the environmental temperatures of the N test positions is within a preset temperature range; at the same time, it is determined whether at least M test positions have test results within the preset temperature range; Wherein, when N>20, M=N-3; when 20≥N≥12, M=N-2; when 12>N≥5, M=N-1; and when N<5, M=N; If the linear average of the environmental temperatures of the N test positions is within the preset temperature range, and at least M test positions have test results within the preset temperature range, it is determined that the environmental temperature is qualified; If the linear average of the environmental temperatures of the N test positions is not within the preset temperature range, or if more than N-M test positions have test results not within the preset temperature range, it is determined that the environmental temperature is unqualified.

6. The method of claim 1, wherein, The material of the liquid antenna is mercury or alcohol.

7. A liquid antenna based ambient temperature measurement device, characterized by, Including: A liquid antenna installed in an environment to be measured; A calibration module for calibrating a correspondence between a resonant frequency of the liquid antenna and an environmental temperature; A setting module for determining a first resonant frequency corresponding to a preset environmental temperature value according to the calibrated correspondence between the resonant frequency of the liquid antenna and the environmental temperature; A measurement module for measuring a second resonant frequency of the liquid antenna, calculating a difference between the second resonant frequency and the first resonant frequency, and determining whether the difference is within a preset limit value range; if yes, it is determined that the environmental temperature is qualified; if no, it is determined that the environmental temperature is unqualified; Wherein, the calibration module is specifically configured to: Collect the resonant frequency of the liquid antenna and the environmental temperature of the environment to be measured simultaneously through a vector network analyzer and a temperature sensor, respectively; Adjust the environmental temperature, collect different environmental temperatures and the resonant frequency of the liquid antenna under the environmental temperature, respectively; Calibrate the correspondence between the resonant frequency of the liquid antenna and the environmental temperature according to the collected environmental temperatures and the resonant frequency of the liquid antenna; Wherein, the calibration module is specifically configured to: During calibration, the environmental temperature is changed by steps of 1℃ each time, and the change range of the environmental temperature is ±20℃ of the preset temperature range; the environmental temperature is changed by steps to repeatedly test the resonant characteristics of the liquid antenna; According to the collected environmental temperatures and the resonant frequency of the liquid antenna, linear fitting or cubic polynomial fitting is performed to calibrate the correspondence between the resonant frequency of the liquid antenna and the environmental temperature.

8. A computer device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the computer program to implement the method of any one of claims 1 to 6.

Images