Automatic sterilization control method and system for intelligent water cup

Abstract

The invention relates to the technical field of intelligent water cups, and provides an automatic sterilization control method and system for an intelligent water cup, and the method comprises the steps: carrying out the data calibration of ultrasonic data, obtaining the calibration ultrasonic data, carrying out the signal conversion of the calibration ultrasonic data, obtaining an ultrasonic signal, and collecting the signal feature information corresponding to the ultrasonic signal; analyzing ultrasonic scattering characteristics of the ultrasonic waves in the intelligent water cup, determining an initial sound wave intensity value and a feedback sound wave intensity value in the calibration ultrasonic data, and calculating an ultrasonic attenuation coefficient of the ultrasonic waves in the intelligent water cup; the mass density of water in the intelligent water cup is measured, and the ultrasonic reflection coefficient of ultrasonic waves in the intelligent water cup is calculated; performing bacterium identification on the intelligent water cup to obtain a bacterium type, positioning the spatial position of the bacterium type in the intelligent water cup, calculating the bacterium activeness corresponding to the bacterium type, and sterilizing and purifying water in the intelligent water cup to obtain purified water. The sterilization efficiency of the intelligent water cup is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of smart water cups, and in particular to an automatic sterilization control method and system for smart water cups. Background Art

[0002] In modern life, smart water cups are becoming more and more popular as a convenient drinking tool. However, since water cups are often in contact with water and the human mouth, they are prone to breed various bacteria and microorganisms, posing a potential threat to the health of users.

[0003] The existing smart water cups are sterilized by using water cup cleaning methods, such as manual cleaning and simple disinfection, which often have limited effects and are difficult to ensure continuous hygiene. Although some smart water cups on the market currently have sterilization functions, most of them use fixed sterilization modes and cannot be flexibly adjusted according to the actual bacterial contamination in the water cups. This will result in insufficient sterilization energy, inability to effectively remove bacteria, and difficulty in accurately obtaining key information such as the type, quantity and distribution of bacteria, resulting in low sterilization efficiency of smart water cups. Summary of the invention

[0004] The present invention provides an automatic sterilization control method and system for a smart water cup, the main purpose of which is to improve the sterilization efficiency of the smart water cup.

[0005] To achieve the above object, the present invention provides an automatic sterilization control method for a smart water cup, comprising:

[0006] Transmitting an ultrasonic wave of a specific frequency into the smart water cup, receiving ultrasonic data reflected by the ultrasonic wave, performing data calibration on the ultrasonic data to obtain calibrated ultrasonic data, performing signal conversion on the calibrated ultrasonic data to obtain an ultrasonic signal, and collecting signal characteristic information corresponding to the ultrasonic signal;

[0007] Analyze the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup according to the signal characteristic information, determine the initial sound wave intensity value and the feedback sound wave intensity value in the calibration ultrasonic data, and calculate the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup by combining the initial sound wave intensity value and the feedback sound wave intensity value;

[0008] Measuring the mass density of water in the smart water cup, and recording the echo period of the ultrasonic wave, and calculating the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup by combining the mass density and the propagation period;

[0009] In combination with the ultrasonic scattering characteristics, the ultrasonic attenuation coefficient and the ultrasonic reflection coefficient, the smart water cup is subjected to bacterial identification to obtain the bacterial type. According to the echo period, the spatial position of the bacterial type in the smart water cup is located, and the bacterial activity corresponding to the bacterial type is calculated. In combination with the bacterial activity, the bacterial type and the spatial position, the water in the smart water cup is sterilized and purified to obtain purified water.

[0010] Optionally, the performing data calibration on the ultrasound data to obtain calibrated ultrasound data includes:

[0011] identifying ultrasound measurements and numbers of measurements from the ultrasound data, and calculating measurement differences between the ultrasound measurements;

[0012] Calculating the average value of the ultrasonic measurements according to the number of the measurements;

[0013] identifying abnormal measurement values ​​among the ultrasound measurement values ​​according to the measurement average values;

[0014] In combination with the measurement difference, the abnormal measurement value is calibrated to obtain a calibrated measurement value;

[0015] The ultrasonic data is updated using the calibration measurement value to obtain calibrated ultrasonic data.

[0016] Optionally, the collecting signal feature information corresponding to the calibration ultrasound data includes:

[0017] Performing noise reduction processing on the calibrated ultrasonic data to obtain noise-reduced ultrasonic data;

[0018] Performing filtering processing on the noise-reduced ultrasonic data to obtain filtered ultrasonic data;

[0019] Performing signal conversion on the filtered ultrasonic data to obtain an ultrasonic signal, and extracting signal features corresponding to the ultrasonic signal;

[0020] Information mining is performed on the signal features to obtain signal feature information.

[0021] Optionally, analyzing the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup according to the signal characteristic information includes:

[0022] The ultrasonic parameters corresponding to the ultrasonic wave are extracted from the signal characteristic information, and the ultrasonic scattering intensity of the ultrasonic wave in the smart water cup is calculated according to the ultrasonic parameters by the following formula:

[0023]

[0024] Wherein, I represents the ultrasonic scattering intensity of the ultrasonic wave in the smart water cup, V represents the scattering volume in the ultrasonic parameter, λ represents the wavelength of the incident sound wave in the ultrasonic parameter, k is the wave number in the ultrasonic parameter, a is the radius of the scatterer in the ultrasonic parameter, and n is the refractive index in the ultrasonic parameter;

[0025] The ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup are analyzed according to the ultrasonic scattering intensity.

[0026] Optionally, the combining the initial sound wave intensity value and the feedback sound wave intensity value to calculate the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup includes:

[0027] Measuring the water level in the smart water cup;

[0028] Determining the propagation distance of the ultrasonic wave according to the water level;

[0029] In combination with the propagation distance, the initial sound wave intensity value and the feedback sound wave intensity value, the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup is calculated by the following formula:

[0030]

[0031] Wherein, A represents the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup, D represents the propagation distance, B0 represents the initial sound wave intensity value, and B represents the feedback sound wave intensity value.

[0032] Optionally, the combining the mass density and the propagation period to calculate the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup includes:

[0033] Measuring the elastic modulus of water in the smart water cup;

[0034] Combining the elastic modulus and the mass density, the propagation speed of the ultrasonic wave in the water of the smart water cup is calculated by the following formula:

[0035]

[0036] Among them, E represents the propagation speed of ultrasound in the water in the smart water cup, F represents the elastic modulus, ρ represents the mass density,

[0037] Combining the propagation velocity and the mass density, calculating the acoustic wave characteristic impedance of the ultrasonic wave in the water in the smart water cup;

[0038] The ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup is calculated according to the acoustic wave characteristic impedance.

[0039] Optionally, calculating the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup according to the acoustic wave characteristic impedance includes:

[0040] Obtaining the manufacturing material of the smart water cup and the corresponding material ratio, and querying the material characteristic impedance corresponding to the manufacturing material;

[0041] According to the material ratio, the material weight corresponding to the production material is allocated;

[0042] Calculate the water cup characteristic impedance corresponding to the smart water cup by combining the material characteristic impedance and the material weight;

[0043] Combining the acoustic wave characteristic impedance and the water cup characteristic impedance, the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup is calculated by the following formula:

[0044]

[0045] Among them, G represents the ultrasonic reflection coefficient of ultrasonic wave in the smart water cup, H2 and represent the characteristic impedance of the water cup, and H1 represents the characteristic impedance of sound wave.

[0046] Optionally, the calculating the bacterial activity corresponding to the bacterial type includes:

[0047] Sampling the bacteria type to obtain sampled bacteria, and configuring an observation environment for the sampled bacteria;

[0048] Collecting the initial bacterial count of the sampled bacteria and detecting the initial carbon dioxide abundance of the observed environment;

[0049] According to a preset static period, the sampled bacteria are subjected to static treatment in the observation environment to obtain static bacteria;

[0050] Collecting the current bacterial count of the stationary bacteria and detecting the current carbon dioxide abundance of the observation environment;

[0051] The bacterial activity corresponding to the bacterial type is calculated by combining the initial bacterial quantity, the current quantity, the static period, the initial carbon dioxide abundance, and the current carbon dioxide abundance.

[0052] Optionally, the calculating the bacterial activity corresponding to the bacterial type by combining the initial bacterial quantity, the current quantity, the static period, the initial carbon dioxide abundance and the current carbon dioxide abundance includes:

[0053] Calculating the bacterial growth rate corresponding to the bacterial type according to the initial bacterial count, the current bacterial count and the static period;

[0054] Calculating a bacterial metabolic rate corresponding to the bacterial type according to the initial carbon dioxide abundance, the rest period, and the current carbon dioxide abundance;

[0055] Combining the bacterial growth rate and the bacterial metabolic rate, the bacterial activity corresponding to the bacterial type is calculated using the following formula:

[0056] L=α*M+β*N

[0057] Among them, L represents the bacterial activity corresponding to the bacterial type, α represents the influence coefficient of the bacterial growth rate on the bacterial activity, M represents the bacterial growth rate, β represents the influence coefficient of the bacterial metabolic rate on the bacterial activity, and N represents the bacterial metabolic rate.

[0058] An intelligent water cup automatic sterilization control system, characterized in that the system comprises:

[0059] A signal characteristic information acquisition module, used for transmitting an ultrasonic wave of a specific frequency into the smart water cup, receiving ultrasonic data reflected by the ultrasonic wave, performing data calibration on the ultrasonic data to obtain calibrated ultrasonic data, performing signal conversion on the calibrated ultrasonic data to obtain an ultrasonic signal, and acquiring signal characteristic information corresponding to the ultrasonic signal;

[0060] an ultrasonic attenuation coefficient calculation module, for analyzing the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup according to the signal characteristic information, determining the initial sound wave intensity value and the feedback sound wave intensity value in the calibration ultrasonic data, and calculating the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup by combining the initial sound wave intensity value and the feedback sound wave intensity value;

[0061] An ultrasonic reflection coefficient calculation module, used to measure the mass density of water in the smart water cup, record the echo period of the ultrasonic wave, and calculate the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup by combining the mass density and the propagation period;

[0062] The sterilization processing module is used to identify bacteria in the smart water cup in combination with the ultrasonic scattering characteristics, the ultrasonic attenuation coefficient and the ultrasonic reflection coefficient to obtain the bacterial type; locate the spatial position of the bacterial type in the smart water cup according to the echo period; and calculate the bacterial activity corresponding to the bacterial type; and sterilize and purify the water in the smart water cup in combination with the bacterial activity, the bacterial type and the spatial position to obtain purified water.

[0063] The present invention can correct the erroneous data in the ultrasonic data by calibrating the ultrasonic data, and improve the data accuracy of the ultrasonic data, so that the correct signal characteristic information can be collected later. The present invention analyzes the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup according to the signal characteristic information, and can obtain the specific performance of the scattering mode of the ultrasonic wave in the smart water cup, which is convenient for the subsequent bacterial identification. The present invention calculates the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup by combining the mass density and the propagation period, and can understand the reflection ability of the ultrasonic wave to improve the accuracy of the subsequent bacterial identification. The present invention identifies bacteria in the smart water cup by combining the ultrasonic scattering characteristics, the ultrasonic attenuation coefficient and the ultrasonic reflection coefficient, and then accurately identifies the type of bacteria in the smart water cup, so as to facilitate the subsequent sterilization and purification treatment. Therefore, the automatic sterilization control method and system of a smart water cup provided in the embodiment of the present invention can improve the sterilization efficiency of a smart water cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 A schematic diagram of a flow chart of an automatic sterilization control method for a smart water cup provided by an embodiment of the present invention;

[0065] Figure 2 A functional module diagram of an intelligent water cup automatic sterilization control system provided by one embodiment of the present invention.

[0066] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0067] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0068] The embodiment of the present application provides an automatic sterilization control method for a smart water cup. In the embodiment of the present application, the execution subject of the automatic sterilization control method for a smart water cup includes but is not limited to at least one of the electronic devices such as a server, a terminal, etc. that can be configured to execute the method provided in the embodiment of the present application. In other words, the automatic sterilization control method for a smart water cup can be executed by software or hardware installed on a terminal device or a server device, and the software can be a blockchain platform. The server includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, etc. The server can be an independent server, or it can be a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (Content Delivery Network, CDN), and big data and artificial intelligence platforms.

[0069] Reference Figure 1 FIG. 1 is a flow chart of an automatic sterilization control method for a smart water cup provided by an embodiment of the present invention. In this embodiment, the automatic sterilization control method for a smart water cup includes steps S1-S4.

[0070] S1. Transmitting an ultrasonic wave of a specific frequency into the smart water cup, receiving ultrasonic data reflected by the ultrasonic wave, calibrating the ultrasonic data to obtain calibrated ultrasonic data, and collecting signal characteristic information corresponding to the calibrated ultrasonic data.

[0071] The present invention can correct erroneous data in the ultrasonic data and improve the data accuracy of the ultrasonic data by calibrating the ultrasonic data, so that correct signal feature information can be collected later. The smart water cup is an innovative water cup that integrates modern technology. It is not only a container for holding liquids, but also has a variety of intelligent functions and features. The ultrasonic data is the data obtained after the ultrasonic wave is reflected in the smart water cup. The calibrated ultrasonic data is the data obtained after the erroneous or abnormal data in the ultrasonic data is corrected. Furthermore, an ultrasonic wave of a specific frequency can be emitted by a piezoelectric transducer in the smart water cup; the ultrasonic data reflected by the ultrasonic wave can be received by an ultrasonic sensor in the smart water cup.

[0072] As an embodiment of the present invention, the data calibration of the ultrasonic data to obtain calibrated ultrasonic data includes: identifying ultrasonic measurement values ​​and the number of measurement values ​​from the ultrasonic data, calculating the measurement difference between the ultrasonic measurement values, calculating the measurement average value corresponding to the ultrasonic measurement value based on the number of measurement values, identifying abnormal measurement values ​​in the ultrasonic measurement values ​​based on the measurement average value, calibrating the abnormal measurement values ​​in combination with the measurement difference to obtain calibrated measurement values, and updating the ultrasonic data using the calibrated measurement value to obtain calibrated ultrasonic data.

[0073] Among them, the ultrasonic measurement value and the number of measurement values ​​are the specific ultrasonic intensity value and the number of ultrasonic intensities in the ultrasonic data, the measurement difference is the difference between adjacent measurement values ​​in the ultrasonic measurement value, and the calibration measurement value is the measurement value obtained after the abnormal measurement value is corrected.

[0074] Optionally, identifying the ultrasonic measurement value and the number of measurement values ​​from the ultrasonic data can be achieved through statistical methods; the measurement average value corresponding to the ultrasonic measurement value can be calculated by an average function; based on the measurement average value, the variance value corresponding to the ultrasonic measurement value is calculated, and the abnormal measurement value in the ultrasonic measurement value is identified based on the variance value; based on the measurement difference value, the coefficient of variation of the ultrasonic measurement value is calculated, and the previous measurement value of the abnormal measurement value is multiplied by (1+coefficient of variation) to obtain a calibrated measurement value.

[0075] The present invention can obtain characterization information about the ultrasonic signal in the calibration ultrasonic data by collecting the signal characteristic information corresponding to the calibration ultrasonic data, thereby providing a basis for the subsequent analysis of the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup, wherein the signal characteristic information is representative information about the ultrasonic signal in the calibration ultrasonic data, such as the signal intensity value.

[0076] As an embodiment of the present invention, the acquisition of signal feature information corresponding to the calibrated ultrasonic data includes: performing noise reduction processing on the calibrated ultrasonic data to obtain noise-reduced ultrasonic data, performing filtering processing on the noise-reduced ultrasonic data to obtain filtered ultrasonic data, performing signal conversion on the filtered ultrasonic data to obtain an ultrasonic signal, extracting signal features corresponding to the ultrasonic signal, and performing information mining on the signal features to obtain signal feature information.

[0077] Among them, the denoised ultrasonic data is the data obtained after the noise in the calibrated ultrasonic data is suppressed, the filtered ultrasonic data is the data obtained after the interference frequency in the denoised ultrasonic data is removed, the ultrasonic signal is the expression signal corresponding to the filtered ultrasonic data, and the signal feature is the key description corresponding to the ultrasonic signal, such as the signal amplitude value.

[0078] Optionally, the noise reduction processing of the calibrated ultrasonic data can be achieved through a wavelet transform method; the filtering processing of the noise-reduced ultrasonic data can be achieved through a low-pass filter; the filtered ultrasonic data signal conversion can be achieved through an analog-to-digital converter; the extraction of signal features corresponding to the ultrasonic signal can be achieved through a feature extraction algorithm, such as a fast Fourier transform algorithm; and information mining of the signal features can be achieved through principal component analysis.

[0079] S2. Analyze the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup according to the signal characteristic information, determine the initial sound wave intensity value and the feedback sound wave intensity value in the calibration ultrasonic data, and calculate the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup by combining the initial sound wave intensity value and the feedback sound wave intensity value.

[0080] The present invention analyzes the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup based on the signal characteristic information, and can obtain the specific manifestation of the scattering pattern of the ultrasonic wave in the smart water cup, which is convenient for subsequent bacterial identification, wherein the ultrasonic scattering characteristics are the specific manifestation characteristics of the scattering of the ultrasonic wave in the smart water cup.

[0081] As an embodiment of the present invention, analyzing the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup according to the signal characteristic information includes: extracting ultrasonic parameters corresponding to the ultrasonic wave from the signal characteristic information, and calculating the ultrasonic scattering intensity of the ultrasonic wave in the smart water cup according to the ultrasonic parameters by the following formula:

[0082]

[0083] Wherein, I represents the ultrasonic scattering intensity of the ultrasonic wave in the smart water cup, V represents the scattering volume in the ultrasonic parameter, λ represents the wavelength of the incident sound wave in the ultrasonic parameter, k is the wave number in the ultrasonic parameter, a is the radius of the scatterer in the ultrasonic parameter, and n is the refractive index in the ultrasonic parameter;

[0084] The ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup are analyzed according to the ultrasonic scattering intensity.

[0085] In detail, it can be seen from the above formula that V represents the scattering volume in the ultrasonic parameter, that is, the effective spatial range of the ultrasonic wave interacting with the scatterer in the water cup, λ represents the wavelength of the incident sound wave in the ultrasonic parameter, which determines the frequency characteristics and penetration ability of the ultrasonic wave, k is the wave number in the ultrasonic parameter, which is related to the wavelength and frequency and is used to describe the propagation characteristics of the ultrasonic wave in the medium, a is the radius of the scatterer in the ultrasonic parameter, and the size of the scatterer will affect the scattering intensity and scattering mode, n is the refractive index in the ultrasonic parameter, which reflects the change in the propagation speed and refraction of the ultrasonic wave in different media, and further, according to the ultrasonic scattering intensity, the relevant scattering characteristic value of the ultrasonic wave is calculated to analyze the ultrasonic wave in the smart water cup. Ultrasonic scattering characteristics, such as drawing intensity distribution curves: drawing the ultrasonic scattering intensity values ​​measured at different positions into curves or charts to intuitively display the intensity changes, using the spatial coordinates in the water cup as the horizontal axis and the ultrasonic scattering intensity as the vertical axis to draw a two-dimensional or three-dimensional intensity distribution image, and observing peaks and valleys: determining the positions of peaks and valleys in the intensity distribution, which may correspond to areas with stronger or weaker scattering. If a high-intensity peak appears in a specific part of the water cup, it may mean that there are more scatterers or special structures in the area that lead to enhanced scattering. Calculating the intensity change rate: calculating the change rate of the ultrasonic scattering intensity between adjacent positions to understand the severity of the intensity change. Areas with larger change rates may indicate sudden changes in material properties or structures.

[0086] The present invention calculates the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup by combining the initial sound wave intensity value and the feedback sound wave intensity value, so as to understand the degree of intensity reduction of the ultrasonic wave in the smart water cup, thereby providing a basis for subsequent bacterial identification, wherein the initial sound wave intensity value and the feedback sound wave intensity value are respectively the sound wave intensity of the ultrasonic wave when it is emitted and the sound wave intensity of the ultrasonic wave fed back recorded in the calibration ultrasonic data, and the ultrasonic attenuation coefficient represents the degree of intensity attenuation of the ultrasonic wave in the smart water cup. Furthermore, the initial sound wave intensity value and the feedback sound wave intensity value can be obtained according to the numerical values ​​recorded in the calibration ultrasonic data.

[0087] As an embodiment of the present invention, the combining of the initial sound wave intensity value and the feedback sound wave intensity value to calculate the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup includes: measuring the water level in the smart water cup, determining the propagation distance of the ultrasonic wave according to the water level, and combining the propagation distance, the initial sound wave intensity value and the feedback sound wave intensity value to calculate the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup by the following formula:

[0088]

[0089] Wherein, A represents the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup, D represents the propagation distance, B0 represents the initial sound wave intensity value, and B represents the feedback sound wave intensity value.

[0090] The water level height indicates the depth of water in the smart water cup, the propagation distance is the propagation length of the ultrasonic wave, and further, the water level height in the smart water cup can be measured by a rangefinder.

[0091] S3. Measure the mass density of water in the smart water cup, record the echo period of the ultrasonic wave, and calculate the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup by combining the mass density and the propagation period.

[0092] The present invention calculates the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup by combining the mass density and the propagation period, so as to understand the reflection ability of the ultrasonic wave and improve the accuracy of subsequent bacterial identification, wherein the mass density is the density of water in the smart water cup, the echo period is the time taken for the ultrasonic wave to be emitted and returned, and the ultrasonic reflection coefficient represents the reflection ability of the ultrasonic wave. Furthermore, the measurement of the mass density of water in the smart water cup can be achieved by a pressure sensor.

[0093] As an embodiment of the present invention, the combining of the mass density and the propagation period to calculate the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup includes: measuring the elastic modulus of the water in the smart water cup, combining the elastic modulus and the mass density, and calculating the propagation speed of the ultrasonic wave in the water in the smart water cup by the following formula:

[0094]

[0095] Among them, E represents the propagation speed of ultrasound in the water in the smart water cup, F represents the elastic modulus, ρ represents the mass density,

[0096] The acoustic wave characteristic impedance of the ultrasonic wave in the water in the smart water cup is calculated in combination with the propagation velocity and the mass density, and the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup is calculated based on the acoustic wave characteristic impedance.

[0097] Among them, the elastic modulus is the ability of the water in the smart water cup to resist deformation, and the acoustic wave characteristic impedance represents the quantitative value of the resistance characteristic of the ultrasonic wave to the water in the smart water cup. Furthermore, the measurement of the elastic modulus of the water in the smart water cup can be achieved through an acoustic resonance method; the acoustic wave characteristic impedance of the ultrasonic wave to the water in the smart water cup can be obtained by calculating the product of the propagation velocity and the mass density.

[0098] Optionally, as an optional embodiment of the present invention, the calculating the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup according to the acoustic wave characteristic impedance includes: obtaining the manufacturing material of the smart water cup and the corresponding material ratio thereof, querying the material characteristic impedance corresponding to the manufacturing material, allocating the material weight corresponding to the manufacturing material according to the material ratio, calculating the water cup characteristic impedance corresponding to the smart water cup in combination with the material characteristic impedance and the material weight, and calculating the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup in combination with the acoustic wave characteristic impedance and the water cup characteristic impedance by the following formula:

[0099]

[0100] Among them, G represents the ultrasonic reflection coefficient of ultrasonic wave in the smart water cup, H2 and represent the characteristic impedance of the water cup, and H1 represents the characteristic impedance of sound wave.

[0101] Among them, the manufacturing material is the component material of the smart water cup, the material characteristic impedance represents the quantitative value of the material's barrier property to sound wave propagation, and the water cup characteristic impedance represents the quantitative value of the smart water cup's overall barrier property to sound wave propagation. Optionally, the manufacturing material and its corresponding material ratio can be obtained through the manufacturer of the smart water cup; the material characteristic impedance corresponding to the manufacturing material can be obtained by querying the material manual; the calculation of the water cup characteristic impedance corresponding to the smart water cup can be achieved through a weighted summation method.

[0102] S4. In combination with the ultrasonic scattering characteristics, the ultrasonic attenuation coefficient and the ultrasonic reflection coefficient, the bacteria in the smart water cup are identified to obtain the bacteria type. According to the echo period, the spatial position of the bacteria type in the smart water cup is located, and the bacterial activity corresponding to the bacteria type is calculated. In combination with the bacterial activity, the bacteria type and the spatial position, the water in the smart water cup is sterilized and purified to obtain purified water.

[0103] The present invention combines the ultrasonic scattering characteristics, the ultrasonic attenuation coefficient and the ultrasonic reflection coefficient to perform bacterial identification on the smart water cup, and then accurately identifies the type of bacteria in the smart water cup for subsequent sterilization and purification treatment, wherein the bacterial type is the type of bacteria present in the smart water cup, and the spatial position is the specific location of the bacterial type in the smart water cup. Optionally, the smart water cup can perform bacterial identification by comparing the ultrasonic scattering characteristics, the ultrasonic attenuation coefficient and the ultrasonic reflection coefficient with an existing bacterial feature database to determine the bacterial type. The bacterial feature database is a database constructed according to the results of feature analysis after collecting a large amount of bacterial data; the propagation distance of the ultrasonic wave is calculated according to the sound wave speed and the echo period, and the spatial position of the bacterial type in the smart water cup is located according to the propagation distance.

[0104] By calculating the bacterial activity corresponding to the bacterial type, the present invention can understand the activity level of the bacterial type in the smart water cup, thereby providing a basis for subsequent sterilization and purification, wherein the bacterial activity level represents the activity level of the bacterial type.

[0105] As an embodiment of the present invention, the calculation of the bacterial activity corresponding to the bacterial type includes: sampling the bacterial type to obtain sampled bacteria, configuring an observation environment for the sampled bacteria, collecting an initial bacterial count of the sampled bacteria, and detecting an initial carbon dioxide abundance of the observation environment; according to a preset static period, subjecting the sampled bacteria to a static treatment in the observation environment to obtain static bacteria, collecting a current bacterial count of the static bacteria, and detecting a current carbon dioxide abundance of the observation environment; and combining the initial bacterial count, the current count, the static period, the initial carbon dioxide abundance, and the current carbon dioxide abundance to calculate the bacterial activity corresponding to the bacterial type.

[0106] Among them, the sampled bacteria are samples obtained from the smart water cup, the observation environment is an environment with a series of conditions specially set or controlled for observing and analyzing the sampled bacteria, the static period is the time for the sampled bacteria to be static, the initial carbon dioxide abundance is the carbon dioxide content before the observation environment is static, and the current carbon dioxide abundance is the carbon dioxide content after the sampled bacteria are statically treated in the observation environment according to the static period.

[0107] Optionally, the observation environment of the sampled bacteria can be configured artificially using relevant equipment, such as a high-precision incubator; the collection of the initial bacterial count of the sampled bacteria can be achieved by a plate counting method; and the detection of the initial carbon dioxide abundance of the observation environment can be achieved by gas chromatography.

[0108] Optionally, as an optional embodiment of the present invention, the combining of the initial bacterial number, the current number, the resting period, the initial carbon dioxide abundance and the current carbon dioxide abundance to calculate the bacterial activity corresponding to the bacterial type includes: calculating the bacterial growth rate corresponding to the bacterial type according to the initial bacterial number, the current number and the resting period, calculating the bacterial metabolic rate corresponding to the bacterial type according to the initial carbon dioxide abundance, the resting period and the current carbon dioxide abundance, and combining the bacterial growth rate and the bacterial metabolic rate to calculate the bacterial activity corresponding to the bacterial type by the following formula:

[0109] L=α*M+β*N

[0110] Among them, L represents the bacterial activity corresponding to the bacterial type, α represents the influence coefficient of the bacterial growth rate on the bacterial activity, M represents the bacterial growth rate, β represents the influence coefficient of the bacterial metabolic rate on the bacterial activity, and N represents the bacterial metabolic rate.

[0111] Among them, the bacterial growth rate represents the reproduction speed of the bacterial type in unit time, and the bacterial metabolic rate represents the rate at which the bacterial type performs metabolic activities in unit time. Further, the bacterial growth rate calculation formula corresponding to the bacterial type is: | the initial bacterial number - the current number | ÷ the static period, and the bacterial metabolic rate calculation formula corresponding to the bacterial type is: | the initial carbon dioxide abundance - the current carbon dioxide abundance | ÷ the static period. The influence coefficient of the bacterial growth rate on the bacterial activity and the influence coefficient of the bacterial metabolic rate on the bacterial activity can be obtained through statistical analysis of experimental data. A series of experiments are carried out to control different conditions and measure the data related to the bacterial growth rate, metabolic rate and activity at the same time. Then, statistical methods such as regression analysis, correlation analysis, etc. are used to determine the relationship between the growth rate and metabolic rate and the activity, so as to calculate the influence coefficient.

[0112] The present invention sterilizes and purifies the water in the smart water cup by combining the bacterial activity, the bacterial type and the spatial position, so as to improve the sterilization efficiency of the smart water cup. Furthermore, the sterilization method corresponding to the bacterial type can be queried, such as ultraviolet sterilization or high-temperature sterilization. According to the spatial position and the bacterial activity, the control parameters of the sterilization method are set, such as intensity: the intensity of the sterilization method is adjusted according to the bacterial activity and the spatial position. For locations with high and concentrated bacterial activity, high-intensity sterilization means are adopted, such as increasing the dose of ultraviolet irradiation or increasing the concentration of chemical disinfectants. Duration: corresponding sterilization duration is set for different spatial positions and bacterial activity. In areas with high bacterial activity, the sterilization time is extended to ensure that the bacteria are completely killed. Frequency: the frequency of sterilization is determined according to the changing trend of bacterial activity in the spatial position. If a certain position is prone to breeding active bacteria, the sterilization frequency of the position is increased.

[0113] The present invention can correct the erroneous data in the ultrasonic data by calibrating the ultrasonic data, and improve the data accuracy of the ultrasonic data, so that the correct signal characteristic information can be collected later. The present invention analyzes the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup according to the signal characteristic information, and can obtain the specific performance of the scattering mode of the ultrasonic wave in the smart water cup, which is convenient for the subsequent bacterial identification. The present invention calculates the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup by combining the mass density and the propagation period, and can understand the reflection ability of the ultrasonic wave to improve the accuracy of the subsequent bacterial identification. The present invention identifies bacteria in the smart water cup by combining the ultrasonic scattering characteristics, the ultrasonic attenuation coefficient and the ultrasonic reflection coefficient, and then accurately identifies the type of bacteria in the smart water cup, so as to facilitate the subsequent sterilization and purification treatment. Therefore, the automatic sterilization control method of a smart water cup provided in an embodiment of the present invention can improve the sterilization efficiency of a smart water cup.

[0114] like Figure 2 , which is a functional module diagram of an intelligent water cup automatic sterilization control system provided by one embodiment of the present invention.

[0115] The intelligent water cup automatic sterilization control system 100 described in the present invention can be installed in an electronic device. According to the functions to be implemented, the intelligent water cup automatic sterilization control system 100 can include a signal characteristic information acquisition module 101, an ultrasonic attenuation coefficient calculation module 102, an ultrasonic reflection coefficient calculation module 103 and a sterilization processing module 104. The module described in the present invention can also be called a unit, which refers to a series of computer program segments that can be executed by an electronic device processor and can complete fixed functions, which are stored in the memory of the electronic device.

[0116] In this embodiment, the functions of each module / unit are as follows:

[0117] The signal characteristic information acquisition module 101 is used to transmit an ultrasonic wave of a specific frequency into the smart water cup, receive ultrasonic data reflected by the ultrasonic wave, perform data calibration on the ultrasonic data to obtain calibrated ultrasonic data, perform signal conversion on the calibrated ultrasonic data to obtain an ultrasonic signal, and collect signal characteristic information corresponding to the ultrasonic signal;

[0118] The ultrasonic attenuation coefficient calculation module 102 is used to analyze the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup according to the signal characteristic information, determine the initial sound wave intensity value and the feedback sound wave intensity value in the calibration ultrasonic data, and calculate the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup by combining the initial sound wave intensity value and the feedback sound wave intensity value;

[0119] The ultrasonic reflection coefficient calculation module 103 is used to measure the mass density of water in the smart water cup, record the echo period of the ultrasonic wave, and calculate the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup by combining the mass density and the propagation period;

[0120] The sterilization processing module 104 is used to identify bacteria in the smart water cup in combination with the ultrasonic scattering characteristics, the ultrasonic attenuation coefficient and the ultrasonic reflection coefficient to obtain the bacteria type, locate the spatial position of the bacteria type in the smart water cup according to the echo period, and calculate the bacterial activity corresponding to the bacteria type, and sterilize and purify the water in the smart water cup in combination with the bacterial activity, the bacteria type and the spatial position to obtain purified water.

[0121] In detail, each module described in the intelligent water cup automatic sterilization control system 100 described in the embodiment of the present application is used in the same manner as described above. Figure 1 The technical means are the same as the intelligent water cup automatic sterilization control method described in, and can produce the same technical effects, so I will not go into details here.

[0122] In the several embodiments provided by the present invention, it should be understood that the provided methods and systems can be implemented in other ways. For example, the method embodiments described above are only illustrative, for example, the division of the modules is only a logical function division, and there may be other division methods in actual implementation.

[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution 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 solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A smart water cup automatic sterilization control method, characterized in that: The method comprises: Transmitting an ultrasonic wave of a specific frequency into the smart water cup, receiving ultrasonic data reflected by the ultrasonic wave, performing data calibration on the ultrasonic data to obtain calibrated ultrasonic data, performing signal conversion on the calibrated ultrasonic data to obtain an ultrasonic signal, and collecting signal characteristic information corresponding to the ultrasonic signal; Analyze the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup according to the signal characteristic information, determine the initial sound wave intensity value and the feedback sound wave intensity value in the calibration ultrasonic data, and calculate the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup by combining the initial sound wave intensity value and the feedback sound wave intensity value; Measuring the mass density of water in the smart water cup, and recording the echo period of the ultrasonic wave, and calculating the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup by combining the mass density and the propagation period; In combination with the ultrasonic scattering characteristics, the ultrasonic attenuation coefficient and the ultrasonic reflection coefficient, the smart water cup is subjected to bacterial identification to obtain the bacterial type. According to the echo period, the spatial position of the bacterial type in the smart water cup is located, and the bacterial activity corresponding to the bacterial type is calculated. In combination with the bacterial activity, the bacterial type and the spatial position, the water in the smart water cup is sterilized and purified to obtain purified water.

2. The method for controlling the automatic sterilization of a smart water cup according to claim 1, characterized in that: The step of calibrating the ultrasound data to obtain calibrated ultrasound data includes: identifying ultrasound measurements and numbers of measurements from the ultrasound data, and calculating measurement differences between the ultrasound measurements; Calculating the measurement average value corresponding to the ultrasonic measurement value according to the number of measurement values; identifying abnormal measurement values ​​among the ultrasound measurement values ​​according to the measurement average values; In combination with the measurement difference, the abnormal measurement value is calibrated to obtain a calibrated measurement value; The ultrasonic data is updated using the calibration measurement value to obtain calibrated ultrasonic data.

3. The method for controlling the automatic sterilization of a smart water cup according to claim 1, characterized in that: The collecting of signal characteristic information corresponding to the calibration ultrasound data includes: Performing noise reduction processing on the calibrated ultrasonic data to obtain noise-reduced ultrasonic data; Performing filtering processing on the noise-reduced ultrasonic data to obtain filtered ultrasonic data; Performing signal conversion on the filtered ultrasonic data to obtain an ultrasonic signal, and extracting signal features corresponding to the ultrasonic signal; Information mining is performed on the signal features to obtain signal feature information.

4. The method for controlling the automatic sterilization of a smart water cup according to claim 1, characterized in that: Analyzing the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup according to the signal characteristic information includes: Extracting ultrasonic parameters corresponding to the ultrasonic wave from the signal characteristic information; According to the ultrasonic parameters, the ultrasonic scattering intensity of the ultrasonic wave in the smart water cup is calculated by the following formula: Wherein, I represents the ultrasonic scattering intensity of the ultrasonic wave in the smart water cup, V represents the scattering volume in the ultrasonic parameter, λ represents the wavelength of the incident sound wave in the ultrasonic parameter, k is the wave number in the ultrasonic parameter, a is the radius of the scatterer in the ultrasonic parameter, and n is the refractive index in the ultrasonic parameter; The ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup are analyzed according to the ultrasonic scattering intensity.

5. The method for controlling the automatic sterilization of a smart water cup according to claim 1, characterized in that: The calculating the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup by combining the initial sound wave intensity value and the feedback sound wave intensity value includes: Measuring the water level in the smart water cup; Determining the propagation distance of the ultrasonic wave according to the water level; In combination with the propagation distance, the initial sound wave intensity value and the feedback sound wave intensity value, the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup is calculated by the following formula: Wherein, A represents the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup, D represents the propagation distance, B0 represents the initial sound wave intensity value, and B represents the feedback sound wave intensity value.

6. The method for controlling the automatic sterilization of a smart water cup according to claim 1, characterized in that: The step of calculating the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup by combining the mass density and the propagation period includes: Measuring the elastic modulus of water in the smart water cup; Combining the elastic modulus and the mass density, the propagation speed of the ultrasonic wave in the water of the smart water cup is calculated by the following formula: Among them, E represents the propagation speed of ultrasound in the water in the smart water cup, F represents the elastic modulus, ρ represents the mass density, Combining the propagation velocity and the mass density, calculating the acoustic wave characteristic impedance of the ultrasonic wave in the water in the smart water cup; The ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup is calculated according to the acoustic wave characteristic impedance.

7. The method for controlling the automatic sterilization of a smart water cup according to claim 6, characterized in that: The step of calculating the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup according to the acoustic wave characteristic impedance includes: Obtaining the manufacturing material of the smart water cup and the corresponding material ratio, and querying the material characteristic impedance corresponding to the manufacturing material; According to the material ratio, the material weight corresponding to the production material is allocated; Calculate the water cup characteristic impedance corresponding to the smart water cup by combining the material characteristic impedance and the material weight; Combining the acoustic wave characteristic impedance and the water cup characteristic impedance, the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup is calculated by the following formula: Among them, G represents the ultrasonic reflection coefficient of ultrasonic wave in the smart water cup, H2 and represent the characteristic impedance of the water cup, and H1 represents the characteristic impedance of sound wave.

8. The method for controlling the automatic sterilization of a smart water cup according to claim 1, characterized in that: The calculating the bacterial activity corresponding to the bacterial type includes: Sampling the bacteria type to obtain sampled bacteria, and configuring an observation environment for the sampled bacteria; Collecting the initial bacterial count of the sampled bacteria and detecting the initial carbon dioxide abundance of the observed environment; According to a preset static period, the sampled bacteria are subjected to static treatment in the observation environment to obtain static bacteria; Collecting the current bacterial count of the stationary bacteria and detecting the current carbon dioxide abundance of the observation environment; The bacterial activity corresponding to the bacterial type is calculated by combining the initial bacterial quantity, the current quantity, the static period, the initial carbon dioxide abundance, and the current carbon dioxide abundance.

9. The method for controlling the automatic sterilization of a smart water cup according to claim 8, characterized in that: The calculating the bacterial activity corresponding to the bacterial type by combining the initial bacterial quantity, the current quantity, the static period, the initial carbon dioxide abundance and the current carbon dioxide abundance includes: Calculating the bacterial growth rate corresponding to the bacterial type according to the initial bacterial count, the current bacterial count and the static period; Calculating a bacterial metabolic rate corresponding to the bacterial type according to the initial carbon dioxide abundance, the rest period, and the current carbon dioxide abundance; Combining the bacterial growth rate and the bacterial metabolic rate, the bacterial activity corresponding to the bacterial type is calculated using the following formula: L=α*M+β*N Among them, L represents the bacterial activity corresponding to the bacterial type, α represents the influence coefficient of the bacterial growth rate on the bacterial activity, M represents the bacterial growth rate, β represents the influence coefficient of the bacterial metabolic rate on the bacterial activity, and N represents the bacterial metabolic rate.

10. An intelligent water cup automatic sterilization control system, characterized in that: The system comprises: A signal characteristic information acquisition module, used for transmitting an ultrasonic wave of a specific frequency into the smart water cup, receiving ultrasonic data reflected by the ultrasonic wave, performing data calibration on the ultrasonic data to obtain calibrated ultrasonic data, performing signal conversion on the calibrated ultrasonic data to obtain an ultrasonic signal, and acquiring signal characteristic information corresponding to the ultrasonic signal; an ultrasonic attenuation coefficient calculation module, for analyzing the ultrasonic scattering characteristics of the ultrasonic wave in the smart water cup according to the signal characteristic information, determining the initial sound wave intensity value and the feedback sound wave intensity value in the calibration ultrasonic data, and calculating the ultrasonic attenuation coefficient of the ultrasonic wave in the smart water cup by combining the initial sound wave intensity value and the feedback sound wave intensity value; An ultrasonic reflection coefficient calculation module, used to measure the mass density of water in the smart water cup, record the echo period of the ultrasonic wave, and calculate the ultrasonic reflection coefficient of the ultrasonic wave in the smart water cup by combining the mass density and the propagation period; The sterilization processing module is used to identify bacteria in the smart water cup in combination with the ultrasonic scattering characteristics, the ultrasonic attenuation coefficient and the ultrasonic reflection coefficient to obtain the bacteria type, locate the spatial position of the bacteria type in the smart water cup according to the echo period, and calculate the bacterial activity corresponding to the bacteria type, and sterilize and purify the water in the smart water cup in combination with the bacterial activity, the bacteria type and the spatial position to obtain purified water.

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