In-vitro diagnosis liquid level detection method based on 60GHz on-chip antenna millimeter wave radar

Abstract

The invention discloses an in-vitro diagnosis liquid level detection method based on a 60GHz on-chip antenna millimeter wave radar, and relates to the technical field of liquid level detection in the IVD field, and the method comprises the steps: receiving a reflection signal through a sensor, and carrying out the preprocessing; extracting liquid level position data from the reflected signal through a machine learning algorithm; a temperature compensation and calibration mechanism is used for monitoring the temperature in real time and compensating and calibrating a measurement result; a friendly user interface is constructed and developed to feed back the system operation state in real time. The device can be accurate to a micron level, can accurately detect the liquid level height change in a micro cup or a reagent bottle, provides an extremely accurate reference for reagent addition, is greatly enhanced in reliability, is not influenced by factors such as liquid color, transparency, container material and shape, and can be used in a complex and changeable laboratory environment. The device can work stably and accurately under the conditions of temperature, humidity, electromagnetic interference and the like, and effectively avoids measurement errors caused by interference of external factors.

Description

Technical Field

[0001] The present invention relates to the field of liquid level detection technology in the IVD field, and in particular to an in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter wave radar. Background Art

[0002] In the field of IVD (in vitro diagnostics), it is crucial to accurately detect the liquid level in a microcup or reagent bottle. Traditional liquid level detection technology has many shortcomings. For example, the detection method based on optical principles is easily affected by the color, transparency and external light of the liquid, resulting in unstable detection accuracy. Capacitive detection technology has high requirements on the material and shape of the container and has a narrow scope of application. When facing trace liquids, the pressure sensor detection method is difficult to measure accurately due to the small pressure change. In addition, although ultrasonic detection technology is used in some scenarios, its resolution is limited and it may not be able to respond to small liquid level changes in microcups or reagent bottles in a timely and accurate manner. Moreover, these traditional technologies are often difficult to guarantee reliability in complex laboratory environments and are easily affected by factors such as temperature, humidity, and electromagnetic interference, thereby affecting the accuracy and stability of the measurement results. In actual IVD (in vitro diagnostics) operations, inaccurate liquid level detection may lead to errors in the amount of reagent added, affecting the accuracy of the test results, and may even lead to experimental failure and waste of precious reagents and samples.

[0003] However, the common solutions currently available have many shortcomings, including: existing technologies perform poorly in complex laboratory environments. Faced with temperature fluctuations, the physical properties of materials and signal propagation speeds will change, thus affecting measurement accuracy; humidity changes may cause equipment components to become damp, corroded or short-circuited, interfering with signal transmission; electromagnetic interference may cause sensor signals to become disordered, further reducing the stability and reliability of measurements, increasing the risk of experimental failure, resulting in waste of reagents and samples, extending the experimental cycle, and increasing experimental costs. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the existing in vitro diagnostic liquid level detection method based on 60GHz on-chip antenna millimeter wave radar, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide an in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter-wave radar, which is suitable for solving the problems that the prior art performs poorly in a complex laboratory environment. In the face of temperature fluctuations, the physical properties of the material and the signal propagation speed will change, thereby affecting the measurement accuracy; humidity changes may cause problems such as moisture, corrosion or short circuit of equipment components, interfering with signal transmission; electromagnetic interference will cause sensor signal disorder, further reducing the stability and reliability of the measurement, increasing the risk of experimental failure, causing waste of reagents and samples, extending the experimental cycle, and increasing the experimental cost.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: In the first aspect, an embodiment of the present invention provides an in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter wave radar, which includes using a sensor to receive a reflected signal and perform preprocessing; extracting liquid level position data from the reflected signal through a machine learning algorithm; using a temperature compensation and calibration mechanism to monitor the temperature in real time and compensate for the calibration measurement results; and building a friendly user interface to provide real-time feedback on the system operation status.

[0008] As a preferred solution of the in vitro diagnostic liquid level detection method based on 60GHz on-chip antenna millimeter-wave radar described in the present invention, wherein: the sensor is a 60GHz on-chip antenna radar sensor; the reflected signal includes a target liquid surface reflection signal, a container wall reflection signal and an environmental stray reflection signal; the liquid level position data includes basic spatial position information, container-based position information and dynamic position change information.

[0009] As a preferred solution of the in vitro diagnostic liquid level detection method based on 60GHz on-chip antenna millimeter wave radar of the present invention, the specific formula of the machine learning algorithm is as follows: ;in, is the calculated liquid level position data; is the preprocessed reflected signal at time The value of is the time index variable; is the time range of the reflected signal; is the number of signal points involved in the calculation; is the range of reflection signal points involved in the calculation; is the index parameter.

[0010] As a preferred solution of the in vitro diagnostic liquid level detection method based on 60GHz on-chip antenna millimeter-wave radar described in the present invention, the temperature compensation and calibration mechanism is used to monitor the temperature in real time and compensate the calibration measurement results, including the following specific steps: accurately measuring the ambient temperature near the radar wave propagation path through a temperature sensor; analyzing the ambient temperature based on theoretical knowledge of the propagation characteristics of millimeter waves at different temperatures; calculating the actual propagation speed of the millimeter wave at the current temperature based on the actual propagation speed calculation formula; correcting and compensating the original measurement results according to the calculation results; and regularly using standard samples with known accurate liquid level heights for calibration tests.

[0011] As a preferred solution of the in vitro diagnostic liquid level detection method based on 60GHz on-chip antenna millimeter wave radar of the present invention, the specific formula of the actual propagation velocity calculation formula is as follows: ;in, For an ambient temperature of The actual propagation speed of millimeter waves; represents the millimeter wave at the reference temperature The propagation speed under is the ambient temperature; is the reference temperature; is the temperature difference The degree of linear impact on the millimeter wave propagation speed; To adjust the value of the nonlinear part strength; to control the temperature-related term in the denominator The rate of change.

[0012] As a preferred solution of the in vitro diagnostic liquid level detection method based on 60GHz on-chip antenna millimeter wave radar of the present invention, the specific steps of correcting and compensating the original measurement results according to the calculation results are as follows: When the temperature effect is not considered, the original formula for calculating the liquid level position based on the radar principle is: ;in, is the original calculated liquid level position, is the propagation speed of millimeter waves at the reference temperature; It is the round trip time of the radar wave from emission to reflection on the liquid surface and then back to the receiving antenna; The actual propagation speed Substitute into the liquid level position calculation formula, due to the radar wave round trip time The corrected liquid level position calculation formula is: ;in, The liquid level position after correction and compensation; For an ambient temperature of The actual propagation speed of millimeter waves; It is the round-trip time for the radar wave to be transmitted, reflected from the liquid surface and returned to the receiving antenna.

[0013] As a preferred solution of the in vitro diagnostic liquid level detection method based on 60GHz on-chip antenna millimeter wave radar described in the present invention, the data displayed on the friendly user interface includes liquid level position data, system operation status information, temperature data and historical data trend chart.

[0014] In the second aspect, in order to further solve the above-mentioned technical problems, the embodiment of the present invention provides an in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter-wave radar, which includes: a signal collection module for receiving and preprocessing reflected signals; a data extraction module for extracting liquid level position data from reflected signals using a machine learning algorithm; a liquid level compensation module for compensating and calibrating measurement results using temperature compensation and calibration mechanisms; and a user interaction module for providing real-time feedback on system operation status through a friendly user interface.

[0015] In a third aspect, an embodiment of the present invention provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, wherein: when the computer program is executed by the processor, any step of the in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter-wave radar as described in the first aspect of the present invention is implemented.

[0016] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein: when the computer program is executed by a processor, it implements any step of an in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter-wave radar as described in the first aspect of the present invention.

[0017] The beneficial effects of the present invention are as follows: the IVD liquid level detection technology based on the 60GHz on-chip antenna radar of the present invention brings many significant beneficial effects. First, the detection accuracy has been greatly improved, and it can be accurate to the micron level, accurately detecting the change in the liquid level height in the micro cup or reagent bottle, providing an extremely accurate reference for reagent addition, thereby significantly improving the accuracy of the test results. Secondly, the reliability is greatly enhanced, and it is not affected by factors such as liquid color, transparency, container material and shape. In a complex and changeable laboratory environment, including temperature, humidity and electromagnetic interference, it can work stably and accurately, and effectively avoids measurement errors caused by interference from external factors. Moreover, due to its high precision and high reliability, it reduces the waste of reagents and the loss of samples, and reduces the experimental cost. At the same time, it improves the efficiency of laboratory work, shortens the detection time, and can obtain test results more quickly. In addition, the improvement of the stability and anti-interference ability of the system reduces the maintenance cost and failure rate of the equipment and extends the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them: Figure 1 This is a flow chart for implementing the present invention in Example 1; Figure 2 It is the specific working flow chart of the present invention in Example 1. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0022] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides an in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter wave radar, comprising the following steps:

[0023] S1: Use the sensor to receive the reflected signal and perform pre-processing.

[0024] Preferably, Figure 1 The figure shows the implementation process of the present invention. First, the reflection signal is received by the sensor and preprocessed. The liquid level position data is extracted from the reflection signal through a machine learning algorithm. The temperature is monitored in real time and the calibration measurement results are compensated by the temperature compensation and calibration mechanism. A friendly user interface is constructed and developed to provide real-time feedback on the system operation status.

[0025] Furthermore, the sensor is a 60 GHz antenna-on-chip radar sensor.

[0026] Furthermore, the reflection signal includes a target liquid surface reflection signal, a container wall reflection signal and an environmental stray reflection signal.

[0027] Specifically, the preprocessing ensures the quality and knownness of the data by performing real-time preprocessing of the reflected signal on the data node, including filtering, amplification and signal normalization.

[0028] Preferably, millimeter waves in the 60 GHz frequency band have unique propagation characteristics. Compared with traditional optical, capacitive, pressure and ultrasonic sensors, they have shorter wavelengths and higher resolutions, and can effectively distinguish complex reflection signals, including target liquid surface reflection signals, container wall reflection signals and environmental stray reflection signals. This characteristic enables it to accurately obtain reflection information when facing liquids of different colors and transparencies and containers of various materials and shapes, overcoming the defects of traditional sensors being limited by the characteristics of liquids and containers, providing a reliable signal basis for subsequent precise measurements, and ensuring accurate detection of liquid levels in micro cups or reagent bottles in in vitro diagnosis, greatly improving the accuracy and applicability of measurements.

[0029] S2: Extract liquid surface position data from the reflection signal through machine learning algorithm.

[0030] Preferably, the liquid level position data includes basic spatial position information, container-based position information, and dynamic position change information.

[0031] Specifically, the specific formula of the machine learning algorithm is as follows: ;in, is the calculated liquid level position data; is the preprocessed reflected signal at time The value of is the time index variable; is the time range of the reflected signal; is the number of signal points involved in the calculation; is the range of reflection signal points involved in the calculation; is the index parameter.

[0032] Specifically, in the signal processing stage, in order to reduce the interference of noise and local fluctuations in the reflected signal on the judgment of the liquid level position, a mean filtering method is used.

[0033] Preferably, the machine learning algorithm can automatically learn and adapt to the characteristic patterns of the reflected signals. Through training with a large amount of data, it can accurately identify the key features of the liquid level position from the reflected signals containing various interferences, and effectively extract rich liquid level position data including basic spatial position information, container-based position information, and dynamic position change information. This significantly improves the accuracy and reliability of data extraction, reduces measurement errors caused by improper signal processing, provides more accurate liquid level status information for in vitro diagnosis, and helps to improve the quality of test results.

[0034] S3: Use the temperature compensation and calibration mechanism to monitor the temperature in real time and compensate the calibration measurement results.

[0035] Preferably, the temperature is monitored in real time and the calibration measurement results are compensated using a temperature compensation and calibration mechanism, including the following specific steps: accurately measuring the ambient temperature near the radar wave propagation path by a temperature sensor.

[0036] The ambient temperature is analyzed based on the theoretical knowledge of the propagation characteristics of millimeter waves at different temperatures.

[0037] The actual propagation speed of the millimeter wave at the current temperature is calculated based on the actual propagation speed calculation formula.

[0038] The original measurement results are corrected and compensated according to the calculation results.

[0039] Regularly perform calibration tests using standard samples of known accurate fluid levels.

[0040] Furthermore, the specific formula for calculating the actual propagation speed is as follows: ;in, For an ambient temperature of The actual propagation speed of millimeter waves; represents the millimeter wave at the reference temperature The propagation speed under is the ambient temperature; is the reference temperature; is the temperature difference The degree of linear impact on the millimeter wave propagation speed; To adjust the value of the nonlinear part strength; to control the temperature-related term in the denominator The rate of change.

[0041] Specifically, the specific steps of correcting and compensating the original measurement results according to the calculation results are as follows: When the temperature effect is not considered, the original formula for calculating the liquid level position based on the radar principle is: ;in, is the original calculated liquid level position, is the propagation speed of millimeter waves at the reference temperature; It is the round-trip time for the radar wave to be transmitted, reflected from the liquid surface and returned to the receiving antenna.

[0042] The actual propagation speed Substitute into the liquid level position calculation formula, due to the radar wave round trip time The corrected liquid level position calculation formula is: ;in, The liquid level position after correction and compensation; For an ambient temperature of The actual propagation speed of millimeter waves; It is the round-trip time for the radar wave to be transmitted, reflected from the liquid surface and returned to the receiving antenna.

[0043] Preferably, by real-time monitoring of temperature and applying specific compensation and calibration algorithms to correct the measurement results, high measurement accuracy can be maintained under different temperature conditions. This is difficult to achieve with existing traditional liquid level detection technology. It effectively enhances the stability and reliability of the system in complex environments, avoids measurement deviations caused by temperature fluctuations, and ensures the accuracy and repeatability of in vitro diagnostic test results.

[0044] S4: Build and develop a friendly user interface to provide real-time feedback on system operation status.

[0045] Preferably, the data displayed on the user-friendly interface includes liquid level position data, system operation status information, temperature data, and historical data trend graphs.

[0046] Specifically, operators can intuitively understand the operation of the system through this interface, conveniently view key information such as liquid level position data and temperature data, and can easily set parameters and control the system. At the same time, the fault diagnosis and alarm functions can promptly detect and notify operators of abnormal conditions in the system, thereby improving the convenience and safety of experimental operations, reducing the risk of experimental failure due to untimely detection of system faults, improving the efficiency of the entire in vitro diagnostic experimental process, and optimizing the user experience, which is an important function lacking in traditional technologies.

[0047] This embodiment also provides an in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter wave radar, including: a signal collection module, used to receive and pre-process the reflected signal; a data extraction module, used to extract liquid level position data from the reflected signal using a machine learning algorithm; a liquid level compensation module, used to compensate for the calibration measurement results using temperature compensation and calibration mechanisms; a user interaction module, used to provide real-time feedback on the system operating status through a friendly user interface.

[0048] This embodiment also provides a computer device, which is suitable for an in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter-wave radar, including: a memory and a processor; the memory is used to store computer-executable instructions, and the processor is used to execute computer-executable instructions to implement an in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter-wave radar as proposed in the above embodiment.

[0049] The computer device may be a terminal, and the computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. The display screen of the computer device may be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device may be a touch layer covered on the display screen, or a key, trackball or touchpad provided on the housing of the computer device, or an external keyboard, touchpad or mouse, etc.

[0050] This embodiment also provides a storage medium on which a computer program is stored. When the program is executed by a processor, it implements an in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter-wave radar as proposed in the above embodiment; the storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic storage device, a flash memory, a disk or an optical disk.

[0051] In summary, the IVD liquid level detection technology based on the 60GHz on-chip antenna radar of the present invention brings many significant beneficial effects. First, the detection accuracy has been greatly improved, and it can be accurate to the micron level, accurately detecting the changes in the liquid level in the micro cup or reagent bottle, providing an extremely accurate reference for reagent addition, thereby significantly improving the accuracy of the test results. Secondly, the reliability is greatly enhanced, and it is not affected by factors such as liquid color, transparency, container material and shape. In complex and changeable laboratory environments, including temperature, humidity and electromagnetic interference, it can work stably and accurately, and effectively avoids measurement errors caused by interference from external factors. Moreover, due to its high precision and high reliability, it reduces the waste of reagents and the loss of samples, and reduces the cost of experiments. At the same time, it improves the efficiency of laboratory work, shortens the detection time, and can obtain test results more quickly. In addition, the improvement of the stability and anti-interference ability of the system reduces the maintenance cost and failure rate of the equipment and extends the service life of the equipment. Example 2

[0052] Referring to Tables 1 to 3, the second embodiment of the present invention is shown. This embodiment is different from the first embodiment in that, in order to verify its beneficial effects, operating data and related instructions of the present invention in an actual environment are provided.

[0053] Tables 1 to 3 show the comparison of the measurement accuracy of the detection technology, optical detection, capacitive detection and ultrasonic detection under different conditions in this example.

[0054] Table 1 Comparison of measurement accuracy under different liquid conditions

[0055] Table 2 Comparison of measurement accuracy under different container conditions

[0056] Table 3 Comparison of measurement stability under temperature fluctuations

[0057] It can be seen from the above table that the present invention is not affected by factors such as liquid color, transparency, container material and shape. It can work stably and accurately in complex and changeable laboratory environments, including temperature, humidity and electromagnetic interference, and effectively avoids measurement errors caused by interference from external factors.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A method for in vitro diagnostic liquid level detection based on 60GHz on-chip antenna millimeter wave radar, characterized in that: include: Using sensors to receive reflected signals and perform pre-processing; The liquid surface position data is extracted from the reflection signal through machine learning algorithm; Use temperature compensation and calibration mechanisms to monitor temperature in real time and compensate calibration measurements; Build and develop a friendly user interface to provide real-time feedback on system operation status.

2. The in vitro diagnostic liquid level detection method based on 60 GHz on-chip antenna millimeter wave radar as claimed in claim 1, characterized in that: The sensor is a 60GHz antenna-on-chip radar sensor; The reflection signal includes a target liquid surface reflection signal, a container wall reflection signal and an environmental stray reflection signal; The liquid level position data includes basic spatial position information, container-based position information, and dynamic position change information.

3. The in vitro diagnostic liquid level detection method based on 60 GHz on-chip antenna millimeter wave radar as claimed in claim 1, characterized in that: The specific formula of the machine learning algorithm is as follows: ;in, is the calculated liquid level position data; is the preprocessed reflected signal at time The value of is the time index variable; is the time range of the reflected signal; is the number of signal points involved in the calculation; is the range of reflection signal points involved in the calculation; is the index parameter.

4. The in vitro diagnostic liquid level detection method based on 60 GHz on-chip antenna millimeter wave radar as claimed in claim 1, characterized in that: The method of using the temperature compensation and calibration mechanism to monitor the temperature in real time and compensate and calibrate the measurement results includes the following specific steps: Accurately measure the ambient temperature near the radar wave propagation path through the temperature sensor; Analyze the ambient temperature based on the theoretical knowledge of the propagation characteristics of millimeter waves at different temperatures; Calculate the actual propagation speed of the millimeter wave at the current temperature based on the actual propagation speed calculation formula; Correct and compensate the original measurement results according to the calculation results; Regularly perform calibration tests using standard samples of known accurate fluid levels.

5. The in vitro diagnostic liquid level detection method based on 60 GHz on-chip antenna millimeter wave radar as claimed in claim 4, characterized in that: The specific formula for calculating the actual propagation speed is as follows: ;in, For an ambient temperature of The actual propagation speed of millimeter waves; represents the millimeter wave at the reference temperature The propagation speed under is the ambient temperature; is the reference temperature; is the temperature difference The degree of linear impact on the millimeter wave propagation speed; To adjust the value of the nonlinear part strength; to control the temperature-related term in the denominator The rate of change.

6. The in vitro diagnostic liquid level detection method based on 60 GHz on-chip antenna millimeter wave radar as claimed in claim 5, characterized in that: The specific steps of correcting and compensating the original measurement results according to the calculation results are as follows: When the temperature effect is not considered, the original formula for calculating the liquid level position based on the radar principle is: ;in, is the original calculated liquid level position, is the propagation speed of millimeter waves at the reference temperature; It is the round trip time of the radar wave from transmission to reflection on the liquid surface and then back to the receiving antenna; The actual propagation speed Substitute into the liquid level position calculation formula, due to the radar wave round trip time The corrected liquid level position calculation formula is: ;in, The liquid level position after correction and compensation; For an ambient temperature of The actual propagation speed of millimeter waves; It is the round-trip time for the radar wave to be transmitted, reflected from the liquid surface and returned to the receiving antenna.

7. The in vitro diagnostic liquid level detection method based on 60 GHz on-chip antenna millimeter wave radar as claimed in claim 1, characterized in that: The data displayed on the friendly user interface includes liquid level position data, system operation status information, temperature data and historical data trend chart.

8. A method for in vitro diagnostic liquid level detection based on a 60 GHz on-chip antenna millimeter wave radar according to any one of claims 1 to 7, characterized in that: include, A signal collection module, used for receiving reflected signals and performing pre-processing; A data extraction module, used to extract liquid surface position data from the reflection signal using a machine learning algorithm; A liquid level compensation module for compensating the calibration measurement results using a temperature compensation and calibration mechanism; The user interaction module is used to provide real-time feedback on the system operation status through a friendly user interface.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of an in vitro diagnostic liquid level detection method based on a 60GHz on-chip antenna millimeter wave radar as described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of an in vitro diagnostic liquid level detection method based on a 60 GHz on-chip antenna millimeter wave radar as described in any one of claims 1 to 7 are implemented.

Images