111 results about "Microwave sensor" patented technology

Systems and apparatus are provided for a high-power microwave sensor using an unmanned aerial vehicle. The unmanned aerial vehicle may include a central body, at least one electric motor, and a barometric pressure feedthrough. The central body may include a first enclosure housing a plurality of low voltage components, a voltage feedthrough connector, and a second enclosure housing a plurality of high voltage components. The low voltage components may include a first signal processing system, a first radio transceiver, a flight controller, a second signal processing system, a second radio transceiver, and a navigation system. The high voltage components may include a plurality of electronic speed controllers, a power distribution module, an input power interface, and a plurality of high power filters. The components of each enclosure may be segregated such that the high voltage components do not create electromagnetic interference with the low voltage components.

The invention discloses a shield deslagging volume dynamic detection method and a detection system thereof, and relates to the technical field of shield deslagging volume metering, the method comprises the following steps: arranging sound wave and vibration sensors, collecting sound vibration signals in a deslagging process, and calculating to obtain a first volume estimation value; collecting propelling attitude and conveyor rotating speed information, calculating an attitude correction coefficient and correcting the first estimated value to obtain a second estimated value; based on the dynamic image sequence at the deslagging window, extracting section and trajectory features to form a third volume estimation value; detecting the water content of the muck through a microwave sensor, calculating a water content correction coefficient, and compensating and correcting an image estimation result to obtain a fourth volume estimation value; and finally, carrying out weighted fusion on the second and fourth estimated values to obtain the final deslagging volume. According to the method, multi-source information of sound vibration, vision and water content is fused, the precision and robustness of slag discharge volume estimation are effectively improved, the method adapts to complex working condition changes, and the safety and efficiency of shield construction are guaranteed.

The invention provides a double-ring microwave sensor combination which is composed of two microwave annular sensors which are located on the upstream and the downstream of a measuring pipeline respectively and are the same in structure, each microwave annular sensor comprises a coaxial feeder terminal, an annular pole plate and a shielding layer, and the annular pole plate is tightly attached to the outer wall of the measuring pipeline. The coaxial feeder terminal is electrically connected with the annular polar plate; the shielding layer is longer than the annular polar plate and is grounded; the coaxial feeder terminals of the two microwave annular sensors are both used as the access ends of microwave excitation signals and the receiving ends of microwave response signals. The invention also provides a structure optimization method of the double-ring microwave sensor combination and a method for measuring the related flow velocity of the inclined oil-water two-phase flow by using the double-ring microwave sensor combination. According to the invention, related flow velocity measurement of inclined oil-water two-phase flow under a complex flow pattern can be realized.

The invention relates to the technical field of environmental protection data processing, and particularly discloses an intelligent environmental protection data processing method and system based on the Internet of Things. A hyperspectral camera and a low-power microwave sensor are used for synchronously obtaining a chemical component hyperspectral image and an internal structure microwave response signal of a waste material; further introducing a deep learning algorithm to extract chemical component characteristics and internal physical structure characteristics of the waste materials, and performing deep interactive joint perception on the chemical component characteristics and the internal physical structure characteristics of the waste materials to realize joint characterization of the comprehensive state of the waste materials. And on the basis, adaptive matching of a microwave cracking mode and optimal control of cracking process parameters are carried out. According to the method, the self-adaptive regulation and control of the microwave cracking process can be realized through the integrity and deep cognition of the state of the components of the waste materials, and the intelligent level and the recycling efficiency of the microwave cracking of the waste are effectively improved.

The invention belongs to the field of microwave sensors, and particularly relates to a wireless passive tunable temperature sensor in a severe environment. The objective of the invention is to optimize the adjustment adaptability of the wireless passive temperature sensor in a severe environment, thereby improving the measurement precision. The temperature sensor comprises an upper-layer metal structure, an aluminum oxide substrate, a lower-layer metal structure and a photosensitive structure. The upper-layer metal structure is arranged on the surface of one side of the aluminum oxide substrate, and the lower-layer metal structure and the photosensitive structure are arranged on the surface of the other side of the aluminum oxide substrate; the surfaces of the sides, away from the upper metal structure, of the lower metal structure and the photosensitive structure are covered with transparent aluminum oxide film structures; and the photosensitive structure is a silicon-doped material and is configured to adjust the dielectric constant of the equivalent LC circuit of the temperature sensor under the condition of receiving near-infrared light pumps with different powers, so that the resonant frequency and the amplitude are controllably changed.

The invention belongs to the technical field of microwave sensor manufacturing, and particularly relates to a high-linearity microwave plane angular displacement sensor based on a dual-mode gradient ring resonator. The high-linearity microwave plane angular displacement sensor based on the dual-mode gradient ring resonator comprises a stator and a rotor arranged on the stator. The upper surface of the stator is provided with a metal gradient annular resonant structure and a T-shaped metal feed microstrip line; the outer end of the T-shaped metal feed microstrip line is connected with an input / output port; the lower surface of the stator is provided with a metal ground plane; a metal wire is arranged on the lower surface of the rotor; the lower surface of the rotor is attached to the upper surface of the stator to form electric contact. The method has the characteristics that the response linearity of the sensor can be remarkably improved, and relatively high sensitivity and relatively high measurement range are realized at the same time.

The invention provides a strip line microwave sensor with an electromagnetic shielding structure, and relates to the technical field of microwave sensing, the sensor comprises a dielectric substrate, a strip line structure, at least one sensing resonance unit and a plurality of conductive connecting pieces, the strip line structure is arranged in the dielectric substrate and comprises a central conductor located in the dielectric substrate, a top-layer grounding plane arranged on the top surface of the dielectric substrate and a bottom-layer grounding plane arranged on the bottom surface of the dielectric substrate; the sensing resonance unit is arranged on the top-layer grounding plane and generates electromagnetic coupling with the central conductor; the plurality of conductive connecting pieces penetrate through the dielectric substrate so as to electrically connect the top layer grounding plane with the bottom layer grounding plane; and the plurality of conductive connecting pieces are arranged along the edge of the dielectric substrate so as to form an electromagnetic shielding structure for restraining an electromagnetic field between the top-layer grounding plane and the bottom-layer grounding plane. According to the invention, the environment robustness of the microwave sensor can be improved while high sensitivity is maintained.

The invention relates to all methods of a bag-paving-free intelligent garbage can. The bag-paving-free intelligent garbage can comprises a can body mechanism, a paving-free combined garbage bag, a driving mechanism and a controller. During use, the controller and the microwave sensor are used for detecting whether people throw garbage, the controller is used for controlling the driving mechanism to open the can cover, and the controller controls the can cover to be closed in a delayed mode after garbage is thrown; whether garbage is full or not is detected through a first distance measuring sensor of the controller, and a user is prompted through a garbage full indicating lamp or a loudspeaker of the controller; when a user gets close to the can cover, the controller controls the can cover to be opened, the user pulls the pulling rope of the independent pulling bag by hand to pull up the upper independent garbage bag filled with garbage, the lower independent garbage bag serves as the next garbage bag filled with garbage, and after the user takes away the independent garbage bag filled with garbage, the garbage can be taken away. The controller controls the driving mechanism to close the barrel cover; the steps are repeated continuously until all the garbage bags are extracted; the problem that garbage bags are paved once when garbage is poured once is solved.

The present application relates to the technical field of microwave sensor, in particular to a wearable multi-modal flexible microwave sensor.The present application obtains a deformation state value by analyzing deformation data, analyzes stress data to obtain a stress state value, further analyzes element connection state information, then performs corresponding adaptive adjustment according to the element connection state, obtains an adaptive adjustment result, can monitor and analyze the connection of each internal element to obtain the corresponding connection state, can facilitate the user to find abnormalities in time and increase controllability; also, the signal state is obtained by identifying the signal comprehensive parameter, the corresponding signal gain control instruction is generated, the signal gain is executed according to the signal gain control instruction, the corresponding signal abnormal information is generated according to the gain execution, the result of the signal gain is judged, the connection state is confirmed again, and the accuracy of monitoring element connection abnormality is increased.

The invention discloses a double-resonance microwave sensor, and relates to the technical field of sensors, the double-resonance microwave sensor comprises a dielectric plate, the front surface of the dielectric plate is provided with a microwave resonance layer, and complementary opening resonance units are etched on the microwave resonance layer; the complementary opening resonance unit comprises an inner ring groove and an outer ring groove which are concentrically arranged, one side of the inner ring groove is provided with a connecting bridge extending outwards, and the connecting bridge is communicated with the outer ring groove; interdigital slotting units which are symmetrical to each other are arranged on the two sides of the outer ring groove respectively; the back surface of the dielectric plate is provided with microstrip lines corresponding to the complementary opening resonance units. According to the invention, by adopting a dual-resonance structure in which the complementary opening resonance units are coupled with the microstrip lines, dual-resonance transmission response can be excited and formed, so that the detection precision and sensitivity of the sensor are improved.

The invention discloses an intelligent induction solar acousto-optic warning device and a control method thereof, and relates to the technical field of safety warning. The device has good scene adaptability, and can be used in high-risk environments such as high-voltage lines, ditches and fish ponds. The device adopts a solar panel as an independent power supply and can stably operate for a long time in a remote area or an area without mains supply, the deployment flexibility is improved, and the maintenance cost is reduced; various dynamic lighting effects are achieved through the light warning modules arranged on the two sides, and the good warning effect can be kept at night and in the daytime; a microwave sensor is adopted to replace traditional infrared sensing, the influence of temperature change or light reflection is avoided, accurate detection of personnel approaching in high and low temperature and water surface environments is ensured, and safety and reliability are improved; after microwave induction is triggered, the loudspeaker can output preset or self-defined voice prompts, diversified warning requirements of different scenes are met, and efficient safety protection of acousto-optic linkage is integrally achieved.

The utility model relates to an induction electric door of a protective fence, and belongs to the technical field of doors. Comprising a fixed fence mesh, a movable fence mesh, an upper sliding way shell, a microwave sensor and a driving mechanism, a first stand column and a second stand column are fixedly arranged at the two ends of the upper sliding way shell, a third stand column is arranged between the first stand column and the second stand column, and the two sides of the fixed fence mesh are fixed to the first stand column and the third stand column respectively; the microwave sensor is electrically connected with the driving mechanism, the driving mechanism is used for controlling the movable fence mesh to move to complete door opening or door closing, and when the driving mechanism drives the movable fence mesh to make contact with the second stand column, the door is closed; when a door needs to be opened, the driving mechanism drives the movable fence mesh to be away from the second stand column. According to the utility model, automatic induction opening and closing can be realized, and the use convenience and safety are greatly improved.

This invention relates to a microwave multi-mode flow measurement method for horizontal oil-water two-phase flow, employing a combination of a coplanar waveguide-excited helical microwave sensor and a dual-coaxial microstrip antenna sensing unit. The method includes: constructing a relationship between the mixing dielectric constant and water holdup of the horizontal oil-water two-phase flow based on the phase output signal of the coplanar waveguide-excited helical microwave sensor, thereby obtaining formulas for predicting water holdup and oil holdup using the dielectric constant of the oil-water mixture in a horizontal pipe; utilizing the upstream and downstream phase output signals of the dual-coaxial microstrip antenna sensing unit; constructing a correlation velocity model for the horizontal oil-water two-phase flow under different operating conditions based on experimental data, obtaining the functional relationship between the correlation velocity of the mixed fluid in the pipe and the mixing velocity and the phase-separated apparent velocity; and constructing a drift model for the horizontal oil-water two-phase flow under different flow patterns, obtaining functions relating the mixing velocity, the oil phase apparent velocity, and the oil holdup. This invention offers high measurement accuracy.

An apparatus such as a lavatory, a toilet, a urinal, and others includes a vitreous body, a water outlet, and a control unit. A valve configured to selectively provide water at the apparatus. At least one microwave sensor is configured to collect sensor data descriptive of a user in proximity to the toilet. The control unit is configured to receive sensor data from the microwave sensor and generate a control signal response for the apparatus in response to the sensor data from the microwave sensor

This application discloses a multimodal microwave sensor and a multi-parameter decoupling measurement method. The sensor includes a first metal layer, a dielectric layer, a second metal layer, and a transmission unit. The first metal layer is provided with a first microstrip line feed line, a second microstrip line feed line, and a three-mode resonant coupling structure. By setting the transmission unit to connect with a single-end fixed beam, the non-uniform elastic deformation of the single-end fixed beam under pressure causes synchronous asymmetric coupling changes in the three-mode resonant coupling structure. This simultaneously excites two sensing parameters, namely the change in resonant frequency difference and the change in transmission amplitude, to respond independently. Dual-parameter fusion sensing can be achieved without additional circuitry, effectively suppressing temperature drift and environmental electromagnetic interference, improving the anti-interference capability and measurement reliability of the entire microwave pressure sensor, and enhancing the pressure measurement accuracy and the stability of the device.

The application discloses a double-resonance microwave sensor and relates to the technical field of sensors, which comprises a dielectric plate, the front surface of the dielectric plate is provided with a microwave resonance layer, and the microwave resonance layer is etched with a complementary open resonant unit; the complementary open resonant unit comprises concentrically arranged inner ring grooves and outer ring grooves, one side of the inner ring grooves is provided with an outwardly extending connecting bridge, the connecting bridge is in communication with the outer ring grooves; the two sides of the outer ring grooves are respectively provided with interdigitated slotted units that are symmetrical to each other; and the back surface of the dielectric plate is provided with a microstrip line corresponding to the complementary open resonant unit. The double-resonance structure of the complementary open resonant unit and the microstrip line coupling can excite a double-resonance transmission response, so that the detection precision and sensitivity of the sensor are improved.

The invention relates to an intelligent toilet system which comprises a role storage module, an information management module, a center module and a function response module. The role storage module is connected with the center module and used for establishing a digital account for the information to which the user belongs and sending the digital account to the center module; the information management module is connected with the central module and used for receiving and managing different digital accounts in the central module and increasing, decreasing and modifying user preset information in the digital accounts, and the function response module is connected with the central module and used for identifying a user according to the automatic microwave sensing unit and sending the user preset information to the central module. And completing different function operations according to the prediction information in the digital account to which the user belongs. According to the invention, through the role storage module and the information management module, the user can add, reduce and modify the preset information in the digital account of the user so as to realize personalized function operation. Different users can set parameters such as the temperature of the seat ring, the massage strength and the water spraying flow according to own requirements and preferences.

The utility model belongs to the technical field of grain detection equipment, and particularly relates to a grain moisture detection device which comprises a detection box and a microwave moisture detector, microwave sensors of the microwave moisture detector are symmetrically arranged on the two sides of the detection box, a baffle is arranged above the microwave moisture detector, and the microwave moisture detector is arranged above the baffle. A material receiving plate is arranged below the microwave moisture detector, push-pull openings are formed in the positions, corresponding to the baffle and the material receiving plate, of the detection box, and the baffle and the material receiving plate are both arranged in the push-pull openings and installed on the detection box through two push-pull assemblies in a push-pull mode. Through a large number of experiments, the applicant finds that after grains fall into the detection box and the upper part and the lower part of a grain area detected by the microwave moisture detector are shielded, a detection space is formed between the baffle and the material receiving plate, the detected grain moisture content of the grains in the detection space is consistent with the actual grain content, and the detected grain moisture content is more accurate.

The invention relates to the field of thermal power plants, and discloses a raw coal bunker coal type intelligent management and control system and method based on multi-source information fusion and dynamic optimization, which is characterized in that the system adopts a three-layer architecture of a sensing layer, a decision-making layer and an execution layer, and virtual-real mapping and iterative optimization are realized through a digital twin model; the sensing layer comprises a coal quality characteristic tracking module which is used for generating a unique fuel characteristic code for each batch of coal entering a factory, associating industrial analysis and element analysis data of the coal, and tracking the flow direction of the coal from a coal yard to a raw coal bunker. The non-contact array microwave sensor is adopted to replace or supplement a traditional pure metering or laser scanning mode, the influence of coal dust coverage and the complex environment in the raw coal bunker is overcome, direct, continuous and real-time measurement of different coal type layered interfaces in the raw coal bunker is achieved, and a key data source is provided for accurately calculating the remaining amount of each coal type.

The invention discloses a microwave sensor based on SSPP and a movable resonator and a measuring method of the microwave sensor. The microwave sensor is used for simultaneously and independently measuring the dielectric constant and biaxial linear displacement of a material. The sensor adopts a double-layer PCB structure; the lower layer PCB is integrated with an SSPP structure to form a low-pass filter, and the cut-off frequency of the low-pass filter is sensitive to the dielectric constant of a material to be detected; the upper PCB serves as a pure dielectric layer, limits two displacement areas and guides the two sliding blocks embedded with the independent ring resonators to slide. The two ring resonators generate two independent notch frequencies in a passband of the filter, and the reflection phases of the two ring resonators are in linear relation with the displacement of the corresponding sliding blocks respectively. The core of the invention lies in that material sensing and double-displacement sensing are completely decoupled in electromagnetic response and do not interfere with each other, and multi-parameter synchronous measurement on a single compact device is realized; the device can effectively achieve the measurement of the dielectric constant and two independent linear displacements of the material at the same time, achieves the complete decoupling of a sensing signal, and avoids the problems in the aspects of cross sensitivity and the like.

A self-excitation microwave sensor suitable for non-destructive testing of metal mesh film, belonging to microwave sensor technology, comprising a resonant sensing structure, a microwave amplifier, a phase shift element, a band-pass filter, a radio frequency detector, a digital-to-analog converter and a microprocessor; wherein the resonant sensing structure, the microwave amplifier, the phase shift element and the band-pass filter form a self-excitation oscillation loop, the resonant sensing structure has a band-pass characteristic, is located in the feedback branch of the loop, the resonant frequency thereof is consistent with the center frequency of the band-pass filter, and the loop gain and the phase shift satisfy the self-excitation oscillation condition at the frequency; by reasonably setting the gain of the microwave amplifier and collecting the self-excitation oscillation signal power in real time, the sensor can realize detection of sub-millimeter width crack damage and identification of high square resistance samples, has high detection sensitivity, compact structure, small volume and low cost, does not need other external microwave analysis instruments, and can be applied to on-site non-destructive testing of metal mesh film.

The utility model provides a microwave sensor, comprising a sensor housing, the sensor housing comprises a trapezoid housing, a first transverse plate and a second transverse plate, the first transverse plate and the second transverse plate are fixed at two ends of the trapezoid housing along the width direction of the trapezoid housing, two ends of the trapezoid housing along the length direction of the trapezoid housing are respectively provided with a pair of plug connectors, the first transverse plate is provided with a first through hole, and the second transverse plate is provided with a second through hole; two second through holes are formed in the second transverse plate; the top end of the circuit board is fixedly connected with the bottom ends of the first transverse plate and the second transverse plate, a battery block, a microwave emitter, a microwave receiver, a display screen, a first prompting lamp, a second prompting lamp and a control chip are arranged at the top end of the circuit board, and third through holes are formed in the positions, corresponding to the plug connectors, of the circuit board; the first prompting lamp and the second prompting lamp correspond to the two second through holes in position, and the display screen corresponds to the first through hole in position. The beneficial effects of the utility model are that the installation offset error can be eliminated, the man-machine interaction is increased, and the plug-in type rapid deployment is realized.

The application discloses a mounting structure of a microwave sensor on a flat lamp, which comprises a flat lamp body, a microwave sensor assembly and a mounting assembly which are matched with each other. An aluminum frame of the flat lamp body extends inward to form a mounting plate, and a long slot is formed in the mounting plate. The mounting assembly comprises a microwave sensor fixing seat and a fixing plate. The microwave sensor fixing seat is fixedly installed into the long slot of the mounting plate, the microwave sensor assembly is installed above the microwave sensor fixing seat, and the fixing plate is tightly installed above the microwave sensor assembly and is fixedly connected with the microwave sensor fixing seat. The mounting structure is simple in structure, convenient to install and compatible with microwave sensors of various specifications of flat lamps.

The present application relates to the technical field of agricultural drought information monitoring, and more particularly to an agricultural drought monitoring and prediction system based on unmanned aerial vehicle microwave remote sensing and deep learning, which comprises: a microwave remote sensing data fusion subsystem that carries multi-frequency microwave sensors on an unmanned aerial vehicle; dynamic adjustment of feature weights based on crop growth stages; elimination of geometric deviations between unmanned aerial vehicle flight strips through time series registration, and construction of a three-dimensional drought feature field by fusing multi-temporal data; a deep drought diagnosis subsystem that inputs the three-dimensional drought feature field into a space-time convolution network, extracts field patch-level anomalies in the spatial domain, and captures drought evolution patterns in the time domain; a drought response subsystem that divides drought levels based on the diagnosis results of the space-time convolution network; generation of differentiated irrigation schemes in combination with farmland Internet of Things data; and comparison of actual irrigation effects with prediction results. The present application realizes an upgrade of the agricultural drought prevention and control mode from passive monitoring to active prediction, and from extensive management to precise regulation.

The invention discloses a bending type dual-band dielectric constant microwave sensor with an embedded open-circuit branch structure, and particularly relates to the technical field of microwave sensing, which comprises a metal transmission line at the upper layer, a dielectric substrate at the middle layer and a grounding metal plate at the bottom layer, a signal path of an upper layer structure of the microwave sensor is arranged between the first port and the second port, and the signal path is at least composed of two transmission lines and three bent embedded open circuit branch units. The bending type embedded open-circuit branch structures are sensitive to change of dielectric constants of external materials and have the advantages of being small in size, easy to machine, low in cost, high in precision and the like, and the bending type embedded open-circuit branch structures of different sizes provide two measurement working frequency bands and can be effectively applied to solid dielectric constant measurement work.

The present application belongs to the field of microwave sensors, and particularly relates to a wireless passive tunable temperature sensor in harsh environment. The wireless passive temperature sensor is optimized in adjustment adaptability in harsh environment, so as to improve the measurement accuracy. The temperature sensor comprises an upper metal structure, an alumina substrate, a lower metal structure and a photosensitive structure; the upper metal structure is arranged on one side surface of the alumina substrate, the lower metal structure and the photosensitive structure are arranged on the surface of the other side of the alumina substrate; the surface of the lower metal structure and the photosensitive structure away from the upper metal structure is covered with a transparent alumina film structure; the photosensitive structure is a doped silicon material, which is configured to adjust the dielectric constant of the equivalent LC circuit of the temperature sensor under the condition of receiving near-infrared light pumping with different powers, so as to produce controllable changes in the resonant frequency and amplitude.

The utility model discloses an intelligent light-emitting road bar. Indicator lamps and marker lamps are arranged on the road bar. Each of the indicator lamp and the marker lamp comprises a spotlight bead, a circuit board and a shell; comprising a road pile, the two side faces of the road pile are each provided with an installation frame, each installation frame is a multi-layer plate, each layer of plate is provided with an arrow lamp, and the irradiation angles of the adjacent arrow lamps are sequentially increased in the extending direction of a road; the sensor mounting seats are arranged on the two side surfaces of the road pile, and microwave sensors and laser sensors are arranged on the sensor mounting seats; and the indicating lamp, the marker lamp, the arrow lamp, the microwave sensor and the laser sensor are electrically connected with the control circuit. According to the intelligent light-emitting road bar, existence, positions and dynamic states of pedestrians are detected in a multi-dimensional mode, and the detection accuracy of the pedestrians at an intersection is improved; the perception of the driver to the pedestrian state and distance at the intersection is enhanced through multi-form light cooperative prompt; starting and stopping of lamplight are intelligently controlled, and safety and energy saving performance are both considered.

The invention relates to a coaxial microwave sensor for liquid complex dielectric constant measurement. The coaxial microwave sensor comprises a cylindrical metal conductor, a transmission medium wrapping the cylindrical metal conductor and a defect conductor arranged on the outer surface of the transmission medium. The winding structure is adopted as a defect conductor sensing structure and used for detecting the dielectric property of the material to be detected, and different from a traditional coaxial dielectric sensor designed through a reflection method, the novel method reconstructs field distribution by actively etching the defect structure on the outer conductor of the coaxial structure. The axial sensitive area around the central axis of the coaxial structure is effectively utilized, and the interaction between the electromagnetic field and the to-be-detected material is remarkably enhanced, so that high-sensitivity detection of the dielectric property is realized.

The invention relates to an inclined oil-water two-phase flow microwave sensor combination flow measurement method. The method comprises the following steps: manufacturing a spiral annular microwave resonance sensor for measuring the water holding rate; manufacturing a double-ring microwave sensing unit; fixing the prepared spiral annular microwave resonance sensor and the double-ring microwave sensing unit on a measuring pipeline; obtaining a calculation formula of the inclined oil-water two-phase flow mixed dielectric constant by using a spiral annular microwave resonance sensor; establishing a mixed dielectric constant model changing along with the water holdup under different flow patterns, wherein the mixed dielectric constant model is used for predicting the water holdup under the corresponding flow pattern according to the obtained mixed dielectric constant; predicting the water holdup by using a mixed dielectric constant model changing along with the water holdup under the current flow pattern; carrying out inclined oil-water two-phase flow related flow velocity measurement; and obtaining a function about the mixing flow velocity, the oil phase apparent flow velocity and the oil holdup.

This invention provides a method, system, and medium for three-dimensional positioning and displacement measurement that integrates microwave and vision technologies. The method includes: rigidly connecting at least one microwave sensor and at least one vision sensor as a joint sensing unit; establishing a spatial transformation relationship between the coordinate systems of the two sensors through calibration; fusing the target's radial distance and angle information provided by the microwave sensor with the target's two-dimensional imaging information provided by the vision sensor; and directly solving for the target's three-dimensional coordinates in the selected coordinate system using an optimization algorithm; further combining the high-precision one-dimensional displacement information from the microwave sensor with the two-dimensional displacement information from the vision sensor to reconstruct the target's complete displacement vector in three-dimensional space. This invention, through a compact heterogeneous sensor fusion architecture, effectively solves the problems of limited dimensionality of single-sensor modes, high cost of multi-sensor networking, system complexity, and poor engineering applicability, achieving high-precision, low-cost, and full-dimensional non-contact three-dimensional positioning and displacement measurement.