463 results about "Calibration function" patented technology

The invention discloses a dexterous grabbing method and system for a robot, and aims to solve the technical problems that an existing robot grabbing system is high in dependence on hand-eye calibration precision (especially translation vectors), and the grabbing capacity of objects without priori knowledge is limited. According to the method, a reference-transformation-correction control framework is provided, the pose of an unknown object is accurately recognized through a multi-stage visual segmentation strategy, and a preliminary grabbing target is generated based on the reference relation of one-time teaching; most importantly, the system starts closed-loop visual servo correction, and iteratively corrects the position by detecting the real-time pose of a tail end visual mark, so that translation errors in hand-eye calibration are eliminated, and high-precision alignment is realized; in addition, the system also integrates the functions of object posture adjustment and rapid rotation calibration. Through cooperative work of open-loop target generation and closed-loop position correction, dependence on hardware accurate calibration is effectively reduced, and the grabbing success rate and robustness are improved.

The invention relates to a power cable insulation state real-time monitoring and alarm device, and belongs to the technical field of power equipment state monitoring. Comprising a multi-source sensing unit which is installed at a cable body and a joint; the edge computing terminal is fixed in the cable well or the ring main unit; and the cloud early warning platform receives the processing data and outputs an alarm instruction. According to the invention, multi-parameter deep fusion is realized, four-dimensional monitoring of grounding current, temperature, partial discharge and humidity is initiated for the first time, and limitation of a single parameter is broken through; and an insulation health index IHI is proposed, and the insulation deterioration degree is quantitatively evaluated. According to the method, tan delta and IHI are calculated on site through an edge-cloud collaborative architecture edge terminal, so that the data transmission quantity is reduced; the cloud dynamic threshold value is adjusted, and the alarm accuracy is improved. According to the invention, intelligent early warning mechanism three-level alarm linkage protection equipment is arranged; and the self-calibration function ensures long-term reliability.

The present application belongs to the technical field of wireless communications and radar systems. Disclosed are a dual-band fusion and multiplexing frequency source, chips, a radio-frequency transceiver, a system, and a device. The system comprises: a full-function millimeter-wave CMOS 4+1 phased array chip, which is connected to an antenna end, and is used for realizing signal processing and frequency conversion between a millimeter-wave signal and a C-band intermediate-frequency signal, performing phase control and gain adjustment on the millimeter-wave signal, and providing an internal frequency source and a calibration function; a C-band front end, which is connected to the antenna end, and is used for receiving or transmitting a C-band signal; a C-band / intermediate-frequency transceiver multiplexing chip, which is used for performing frequency conversion between a C-band or intermediate-frequency signal and a baseband signal in a multiplexing manner, and performing signal processing and gain control on the C-band intermediate-frequency signal; a dual-band fusion and multiplexing frequency source, which is used for providing a local oscillator signal; and an all-digital control logic circuit, which is used for providing a control instruction. The present application improves the efficiency and performance of dual-band joint communications.

The invention discloses a calibration device with a spectrum self-calibration function and a high-resolution spectrum calibration method thereof. The device comprises a narrow-band light source, a broadband light source, an optical fiber isolator, a coupler, an interference system, a multi-way switch, an FP (Fabry-Perot) cavity, a collimator, an orthogonal dispersion system and a computer, wherein the orthogonal dispersion system consists of a cylindrical lens, a reflector, a virtual phase array, a grating, a focusing lens and an industrial camera; according to the device, different light source paths are gated, FP cavity modulation and orthogonal dispersion system light splitting are utilized, and an industrial camera is combined to receive light signals. According to the method, the mapping relation between pixels and wavelengths can be established, the two-dimensional spectrum is compressed into the one-dimensional calibration spectrum through light intensity modulation and normalization processing, the calibration process of the orthogonal dispersion system is simplified, and the measurement precision is improved; and system drift can be compensated in real time through self-checking calibration, and the reliability of a measurement result is ensured, so that accurate calibration and measurement of a high-resolution spectrum can be realized.

The invention provides a force and acceleration composite sensor with a calibration function and a working method, and belongs to the field of composite sensors, the force and acceleration composite sensor with the calibration function comprises a test base, the test base is provided with a test through hole, and the test through hole is provided with a mounting hole; a pressure sensitive diaphragm II and a pressure monitoring core body are mounted in the mounting hole; an impact head limiting and fixing upper base is mounted on the test base, an impact head is mounted in a sliding through hole of the impact head limiting and fixing upper base, a first pressure sensitive diaphragm is arranged at the lower end of the impact head, and an acceleration monitoring core body is mounted at the lower end of the first pressure sensitive diaphragm; a third pressure sensitive diaphragm is installed at the bottom of the test through hole, a calibration base is arranged at the lower end of the test base, a calibration groove is formed in the calibration base, and a standard pressure sensor and a tested pressure sensor can be installed on the side wall of the calibration groove. The device has the beneficial effects that the device has multiple advantages of synchronous monitoring of force and acceleration, flexible impact resistance and integrated calibration.

The invention provides an intelligent voltage monitoring system with an adaptive calibration function, and relates to the technical field of data processing. An environment monitoring module; the intelligent drift modeling module is used for training associated data based on a neural network model, learning a nonlinear drift rule under a multi-factor coupling condition and constructing a drift prediction model; the prediction calibration module is used for generating a calibration vector for uncollected original voltage data, and performing dynamic superposition calibration in a real-time sampling process to generate prediction calibration voltage data; the closed-loop self-learning module is used for extracting a deviation trend based on the periodic deviation of the predicted calibration voltage and the reference voltage, and carrying out online updating on the drift prediction model according to the deviation trend; the application output module is used for providing the predicted calibration voltage data to a control unit of the power equipment; according to the invention, the autonomy and accuracy of intelligent voltage monitoring are improved.

The invention discloses a soil humidity inversion method and device, a medium and equipment, and relates to the technical field of microwave remote sensing inversion. According to the method, the total backscattering coefficient, the normalized vegetation index, the leaf area index and the average leaf inclination angle of the electromagnetic waves of the target area pixel by pixel are obtained in combination with microwave remote sensing data and atmospheric apparent reflectance data of the target area; according to the normalized vegetation index, the leaf area index and the average leaf inclination angle, spatial clustering is carried out on vegetation, spatial heterogeneity of crop types is captured, and then based on the constraint that the surface roughness parameters and the vegetation parameters of the same vegetation type are the same and the soil humidity in the same surface space window is the same, the spatial heterogeneity of crop types is obtained. Through two-stage iteration inversion of the intra-class scale and the ground surface space window scale, the time dynamic state is adapted, the parameter calibration function of the in-situ soil humidity data is replaced, and the model parameters and the soil humidity can be determined without the in-situ soil humidity data. According to the invention, the accuracy and reliability of the soil humidity inversion method are improved.

The invention discloses a pinch roll gap cascade control system with an automatic calibration function. The pinch roll gap cascade control system comprises a hydraulic module, a detection module and an upper computer, the hydraulic modules are arranged on the two sides of the pinch roll device. The detection module is arranged on the hydraulic module; the upper computer is connected with the hydraulic module and the detection module. The invention further discloses a pinch roll gap cascade control method with the automatic calibration function. The invention provides a control system which is good in pinch roll gap adjusting effect and considers automatic calibration in the high-precision steel plate production process.

The invention relates to the technical field of dead pixel detection and compensation of a digital light processing projection system, in particular to a DLP dead pixel calibration and compensation method and system based on a Transform attention mechanism. According to the DLP dead pixel calibration and compensation method based on the Transform attention mechanism, a multi-scale feature pyramid is constructed, global features are extracted by using a layered multi-mode Transform encoder, and a dead pixel confidence coefficient heat map is generated in combination with a dynamic sparse mask multi-head attention mechanism; dynamically selecting compensation strategies for different types of dead pixels by adopting a dead pixel type-scene demand dual-drive time-space domain compensation pipeline; ambient light and partition temperature sensor data are integrated, and the influence of optical crosstalk and thermal drift is eliminated through a brightness adaptive calibration function; and finally, carrying out closed-loop verification and iterative optimization by adopting a loss function fused with HVS perception loss. According to the method, the defective pixel detection precision is improved from 82.3% to 99.2%, the PSNR after compensation is improved from 32.6 dB to 42.5 dB, the processing delay is reduced to 7ms / frame, and the visual quality and reliability of a DLP system are improved.

The invention provides a calibration method, device and equipment for a digital electric energy meter with a self-calibration function, and the method comprises the steps: obtaining a to-be-detected pulse electric energy signal and a standard electric energy pulse signal which are inputted to the digital electric energy meter in real time, and carrying out the preprocessing of the signals, and generating an error sequence; performing multi-scale coarse graining processing on the error sequence to generate a coarse graining sequence based on different scale factors; calculating a sample entropy value of each coarse graining sequence, generating entropy spectrum characteristics, and identifying frequency components based on an error source in the entropy spectrum characteristics; and realizing calibration of the digital electric energy meter based on the frequency components and the corresponding calibration weights. Through a multi-scale entropy analysis technology, multi-scale quantization of error signal complexity is realized, and the limitation that a traditional single time window comparison method cannot distinguish frequency characteristics is overcome.

The utility model relates to the technical field of pad printing processing, in particular to a multi-station pad printing device with a calibration function. Comprising a base, a transfer printing module, a second linear moving module, a rotating platform and a visual assembly, the transfer printing module is arranged on the base and comprises a first linear moving module, and the first linear moving module is connected with a plurality of transfer printing heads; the second linear moving module is arranged on the base and located below the transfer printing module, the rotating platform is arranged on the second linear moving module, and a jig is arranged on one side of the rotating platform; the visual assembly comprises a camera, a memory and a display screen, the camera is arranged on the second linear moving module or the base, the jig can move to the position corresponding to the camera, the memory is used for storing images, and the display screen is used for displaying image information. The problem that in the prior art, a transfer printing device lacks reference during machining, and consequently the machining precision is affected is solved.

The invention is suitable for the technical field of optical fiber precision machining and integrated manufacturing, and provides an optical fiber array arranging and bundling device and an arranging method.The optical fiber array arranging and bundling device comprises a main body assembly, a circular disc body and a U-shaped groove body, the main body assembly comprises two bases and a vertical plate installed at the tops of the two bases, and a gap is formed between the two bases; the device solves the problems that a manual arrangement method is low in efficiency and consumes a large amount of time and manpower, optical fibers are prone to dislocation due to factors such as manipulation differences of operators and visual fatigue, and application requirements of mass production and multi-core precise layout are difficult to meet. According to the device, the angle-adjustable supporting seat is arranged to be matched with the positioning protrusions placed on the flexible board, pre-arrangement positioning of optical fibers is achieved, the automatic clamping and transferring actions of the transferring assembly and the angle calibration function of the positioning mechanism on the circular disc body are combined, the dislocation problem caused by human factors in manual arrangement is avoided, and the accuracy of arrangement of the optical fibers is improved. And meanwhile, human input and time consumption are reduced.

The invention provides a three-dimensional rotary table with an internal heat source and a high-precision temperature calibration function, which comprises a working table top, a pitching device, a rotating device, a lifting device and a base, and is characterized in that the pitching device comprises a driving shaft fixedly connected with the bottom of the working table top and a pitching driving assembly for driving the driving shaft to swing; the rotating device comprises a rotating plate fixedly connected with the pitching driving assembly and a rotation driving assembly driving the rotating plate to rotate, and the lifting device comprises a lifting table fixedly connected with the rotation driving assembly and a lifting driving assembly fixedly arranged on the base. The three-dimensional rotary table further comprises a hot air gun and a high-precision surface source black body, wherein the hot air gun is fixedly arranged below the working table top, and an air outlet of the hot air gun is aligned with the working table top. Heating and temperature calibration of a measured object are achieved through the integrated internal heat source and the high-precision surface source black body, the space utilization rate and the load capacity are improved through the modular layered design, meanwhile, the disassembly and assembly maintenance space is sufficient, and the maintenance cost is reduced.

The invention relates to a power distribution network fault distance measurement system and a monitoring method thereof, and the system comprises a distributed monitoring terminal network, a master station data processing center and a communication network which cooperate to achieve the collection, processing and positioning analysis of fault signals. According to the invention, through a fault branch identification strategy combining distributed power supply side cooperative monitoring and power flow direction analysis, the problem of fault branch identification of the power distribution network containing the distributed power supply is effectively solved; the relative time synchronization calibration technology is adopted, a high-precision satellite synchronization module is not needed, the satellite signal interference problem is avoided, meanwhile, the hardware deployment cost is reduced, the system adopts the dual-mode communication and standby power supply design, the system adapts to complex operation environments such as cities and underground, and the reliability is high; the monitoring terminal adopts an ARM + FPGA dual-core architecture, gives consideration to real-time performance and data processing capability, can be directly connected with existing power distribution network equipment, and is low in transformation difficulty and flexible in deployment; the parameter self-correction function enables the system to adapt to line parameter change and environmental influence, and the long-term distance measurement precision is stable.

The invention discloses a low-power-consumption electromagnetic water meter system with dynamic excitation and self-calibration functions, which comprises a sensor layer, a metering board, a main control board and a communication board, and is characterized in that the sensor layer comprises an excitation coil, an electrode pair, a temperature sensor and a pressure sensor; the metering board comprises an excitation driving circuit, a signal conditioning circuit, a high-precision ADC and a register block, the main control board comprises an embedded processor, an RTC clock, a data storage module and a display screen, and the embedded processor is used for receiving signals and processing and executing tasks according to a pre-written program; the RTC clock is used for providing an accurate and continuous time reference for the embedded processor; the communication board comprises an NB-IoT / 485 / PWM multimode communication interface, when water flow passes through the measuring pipe, the electrode pair generates an induced voltage signal, after the induced voltage signal is converted by the signal conditioning circuit and the high-precision ADC, the main control board optimizes excitation parameters in real time by combining environmental parameters and a cloud platform strategy, and meanwhile, triple calibration is periodically executed to ensure the precision of a signal chain.

The invention discloses a real-time unbalance loading detection and balance control method and system in the container loading process, and relates to the technical field of logistics transportation safety. According to the control method, a container is dragged to a pressure sensing matrix platform of a hydraulic leveling base with a self-calibration function, and the platform is automatically adjusted to be in a horizontal state by utilizing a horizontal sensor and a PID (Proportion Integration Differentiation) control algorithm. In the loading process, pressure data of goods are collected in real time through 72 high-precision pressure sensors which are evenly distributed, a pressure distribution diagram is generated after filtering and spatial interpolation processing, and the gravity center offset of the goods is calculated. And the central control system generates a correction instruction according to the offset, and guides workers to adjust the cargo position through the LED lamp strip and the sound-light alarm system to ensure that the gravity center returns to a safe range. After loading is completed, the system automatically generates a loading safety certification report. The problem that the gravity center change in the loading process cannot be monitored in real time through a traditional method is solved, and then the unbalance loading detection efficiency is improved.

This invention discloses a strain gauge force sensor with self-calibration function, comprising an upper cantilever beam and a lower cantilever beam, wherein the stiffness of the upper cantilever beam is greater than that of the lower cantilever beam; the fixed end of the lower cantilever beam is fixedly connected to the fixed end of the upper cantilever beam, and a pushing calibration mechanism is provided between the movable end of the lower cantilever beam and the movable end of the upper cantilever beam; in measurement mode, the pushing calibration mechanism is in a retracted state, and the upper and lower cantilever beams are in contact to allow them to deform synchronously; in calibration mode, the target travel distance of the free end of the lower cantilever beam and the target travel distance of the pushing calibration mechanism are calculated based on the theoretical calibration force value; the pushing calibration mechanism extends to the target travel distance to drive the free end of the lower cantilever beam to move. This invention simulates standard force loading through an internal pushing mechanism, eliminating the need for external equipment, and can complete calibration in situ, achieving real-time on-site calibration, suitable for high-precision, unattended industrial scenarios.

Embodiments of the present application disclose a river bed load transport characteristic determination method and device, electronic equipment and a computer readable medium, relating to the field of engineering technology. The method performs fast Fourier transform on the sound pressure signals of the microphone array to obtain a sound pressure matrix in the frequency domain; based on the sound pressure matrix, cross-spectrum operation is performed to obtain a cross-spectrum matrix; based on each scanning grid point j on the surface of the monitoring sensor plate as an imaginary sound source point, a sound propagation model is selected according to the aerodynamics theory to determine the sound signal monitored by any microphone; each grid point is scanned, the auto-spectrum of the simulated sound signal is calculated, and the sound source holographic image of the bed load shock wave is determined; the sound source intensity is simulated, the bed load spatial position is obtained, and the bed load particle size component information is obtained through the calibration function relationship. That is, in the present application, the bed load spatial position and the bed load particle size component information are obtained, this method can accurately determine the transport characteristics of the bed load, and becomes an important support for quantifying the disaster prevention and reduction work of mountainous rivers.

The utility model discloses a kind of turnover mechanisms with calibration function for panel, including fixed frame, lifting module is installed on fixed frame, lifting module is connected with mounting seat, mounting seat is connected with turnover structure, calibration structure is equipped below turnover structure;Turnover structure includes hollow rotating platform that can rotate along horizontal axis, hollow rotating platform is connected with the turnover servo motor for driving its rotation, hollow shaft of hollow rotating platform is connected with mounting bracket, and several suction cups are equipped on mounting bracket;Calibration structure includes calibration table, several panel support columns are equipped on calibration table, several first calibration components and several second calibration components are equipped on calibration table.The beneficial effects of the utility model are: the structure of the turnover mechanism is simple, easy to operate, can calibrate the position of panel, ensure the position of panel is in the middle, can ensure that the adsorption position of turnover structure to panel is accurate and the position of panel after turning over is accurate, and can save process CT time.

A pipelined SAR ADC that is connected to receive an analog input voltage includes a first ADC stage, a residue amplifier, a second ADC stage, and calibration circuitry coupled and configured to add first and second ADC conversion results to form an uncalibrated digital value, and to apply calibration values to the uncalibrated digital value to obtain a calibrated digital value corresponding to a calibrated digital representation of the analog input voltage, where the calibration values include a first ADC stage DAC element mismatch calibration value corresponding to the first ADC conversion result, an offset calibration value, and a gain adjustment factor.

1. The name of the design product: electronic device with the function of displaying the homepage of the graphical user interface with the scale. 2. The use of the design product: the design product is used for an electronic device. 3. The design points of the design product: the interface content and layout of the graphical user interface. 4. The picture or photo that best indicates the design points: the front view. 5. Other views are omitted as they are conventional designs. 6. The use of the graphical user interface: the graphical user interface for the WICAS self-calibration tool client. 7. The human-computer interaction mode of the graphical user interface: the front view is the homepage of the interface, which is used to display the work unit and related data information, and the right side is the new quick channel module; clicking the first problem hyperlink below the "common problem search" on the right side of the front view can enter the interface change state diagram.

The application discloses a kind of for the inspection method, device and nonvolatile storage medium of vehicle controller.Therein, the method includes: obtaining the first target information of the flashing of flashing controller, wherein the first target information includes the data to be flashed;First target information is modified to obtain second target information;Determine the installation state of second target information based on second target information Vehicle controller of target vehicle, wherein installation state includes normal installation and abnormal installation;Determine whether flashing controller is in normal working state based on installation state.The application solves the technical problem that the method for checking the vehicle controller calibration function is lacked in the prior art.

The application discloses a crude polysaccharide content determination method and system based on multi-standard comparison, and the method comprises the following steps: according to the type of a sample to be measured, matching applicable crude polysaccharide determination standard methods through a preset standard database, and forming a candidate standard list; synchronously performing detection according to the standard methods in the candidate standard list respectively, and obtaining original detection data under each standard method; according to an absorbance sequence, calculating kinetic characteristic parameters under each standard method, and matching through a preset interference characteristic library to obtain a matrix interference type of the sample to be measured; through a preset mutual calibration function, mapping crude polysaccharide content determination values of each standard method to the same reference, calculating calibration deviations of each standard method; based on the calibration deviations and the matrix interference type, obtaining comprehensive quality scores under each standard method, and determining an optimal recommended method according to the comprehensive quality scores. Through mutual calibration and elimination of matrix interference, the optimal detection standard can be automatically recommended.

Disclosed is an antenna having a plurality of radiator columns and an integrated phase shifter / calibration board. The radiator columns have radiator clusters that may be differentially phase to provide beam tilt. The input traces of each of the phase shifters is capacitively coupled to a Wilkinson power divider that sums the power of all the input signals, thereby providing a calibration function. The output traces of each of the phase shifters has a designated meander pattern that provides phase alignment for all the output signals to prevent phase mismatches between signals fed to the radiator clusters.

This application discloses a self-maintenance method and system for laboratory fume hoods, and a laboratory fume hood itself. The self-maintenance method includes: self-testing after the fume hood system starts; self-maintenance execution, including self-cleaning of the duct regulating valve and self-calibration of sensors; fault diagnosis, collecting electrical parameters and sensor detection data in real time, and performing fault diagnosis on each component based on the electrical parameters and detection data; fault early warning, employing a graded response mechanism to trigger differentiated responses based on the severity of the fault diagnosis results, the differentiated responses including the self-maintenance execution, audible and visual alarms, or information prompts; and record traceability, whereby the differentiated responses are recorded, stored, and uploaded to a laboratory equipment management platform in real time. This system possesses self-maintenance capabilities, achieving self-testing, self-cleaning, self-lubrication, and self-calibration functions, reducing the failure rate of laboratory fume hoods and labor maintenance costs.

A method for controlling a chemical process, by preparing methanol, hydrogen sulfide, methyl mercaptan, hydrocyanic acid, acrolein, 3-methylthiopropionaldehyde, 5-(2-methylmercaptoethyl)-hydantoin, methionine, a salt of methionine, and a derivative of methionine. The method includes providing a training set TS1, wherein TS1 is process values PV1 and process values PV2 being correlated to one another, and / or laboratory values LV1 and process values PV2 being correlated to one another. The method includes training a processing unit on the training set TS1 to identify a pattern of correlation between one or more measured process variables and at least one process variable. The method includes developing a calibration function CF1 for a calibrated soft sensor from the identified pattern of correlation and predicting at least one operating parameter for the chemical process as an approximation to LV1 and / or PV1. A system for controlling a chemical process.

The utility model discloses a gas alarm with on -line calibration function, including alarm body, alarm device, gas supply system, and be used for detecting gas content's sensor probe, and gas supply system is fixedly connected with alarm body, is used for providing the sensor probe with the gas to be measured, gas supply system includes the pure air providing mechanism for zero point calibration, the standard content gas providing mechanism for range calibration and control valve, and control valve is used for switching the gas provided to sensor probe, and the gas alarm with on -line calibration function still includes control system, and control system is electrically connected with control valve, sensor probe and alarm device, is used for controlling control valve action and control alarm device and sends out alarm. The gas alarm with on -line calibration function has the function of on -line calibration.

This application provides a method for fabricating a subsurface defect calibration plate and the subsurface defect calibration plate itself, belonging to the field of optical inspection and calibration. The method provided includes: processing a simulated defect structure of a first size on the surface of an optical glass substrate using a femtosecond laser; the first size is larger than the actual defect size; dispersing dielectric microspheres in a volatile mixed solvent to form a microsphere dispersion; dropping the microsphere dispersion onto the surface of the optical glass substrate with the simulated defect structure, filling the simulated defect structure through liquid flow; coating the surface of the optical glass substrate after dropping the microsphere dispersion with an optical adhesive, and covering it with a sealing glass for encapsulation and curing. The method for fabricating a subsurface defect calibration plate and the subsurface defect calibration plate provided in this application can solve the problems of existing subsurface defect calibration plates being unable to accurately simulate composite scenarios of embedded impurities within defects, having complex microsphere filling processes, and limited calibration functions.

This invention discloses a method, focusing method, apparatus, and computing device for obtaining the centroid of a single-line light spot. The method includes: acquiring an original image of the single-line light spot and preprocessing it to obtain a grayscale image; calculating the sum of row pixels in each row of the grayscale image to construct a first dataset; performing a sliding summation on the first dataset based on a sliding window to construct a second dataset containing the sum of row pixels within the window; extracting the maximum value in the second dataset and using its corresponding window region as the region of interest for the light spot; and finally calculating the centroid within this region as the centroid of the light spot. The focusing method includes a calibration process and a focusing process: the calibration process obtains the centroid of the light spot at different defocus positions and fits a calibration function to establish the defocus amount and centroid; the focusing process calculates the current centroid using the aforementioned method, obtains the defocus amount through the calibration function, and drives the mechanism to complete focusing. This invention can effectively suppress noise interference and improve the accuracy of light spot centroid calculation and focusing accuracy.

The invention provides a calibration method for a sensor module of intelligent cleaning equipment, the sensor module and the intelligent cleaning equipment. The method comprises the following steps: a control unit responds to a calibration command of a main controller of the intelligent cleaning equipment to a turbidity sensor, and controls a switch circuit to be switched on to supply power to the turbidity sensor; the input of the turbidity sensor is adjusted through the calibration circuit, the output of the turbidity sensor is obtained through the measurement circuit, and the input of the turbidity sensor is adjusted based on the output of the turbidity sensor until the output of the turbidity sensor meets a preset range; and transmitting calibration completion information to the main controller. The coupling degree between the intelligent cleaning equipment such as a washing machine or a dish-washing machine and the sensor module with the turbidity sensor can be reduced, the system maintainability is improved, meanwhile, the calibration function of the turbidity sensor in use is reserved, the long-term use precision of the turbidity sensor is improved, and the service life of the turbidity sensor is prolonged.