19results about How to "Implement detection" patented technology

The invention relates to the technical field of underwater static target object detection and processing, in particular to an unmanned cross-domain positioning and acoustic fingerprint processing method and system for an underwater static target. Comprising the following steps: performing wide-area scanning on a task sea area, and scheduling an AUV and unmanned aerial vehicle cluster to a target area after discovering a suspicious target; the unmanned aerial vehicle cluster receives an acoustic signal of the AUV and transmits the acoustic signal to the cooperative resolving center in combination with self-positioning data so as to provide accurate coordinate guidance for the AUV; the AUV sails to a target area, parallel processing map construction and accurate positioning, target identification and dual-mode fingerprint generation are carried out, and a target task package is packaged; the ROV receives and analyzes the task packet, autonomously plans a path and sails to a target area, a sonar is started to collect data and generate real-time feature fingerprints, and the real-time feature fingerprints are matched with fingerprints in the task packet; and after matching succeeds, a specific job task is autonomously executed. According to the invention, a complete automatic solution is provided for scenes such as deep and far sea detection, emergency salvage, pipeline maintenance and the like.

The invention relates to the technical field of sonar detection, and discloses an inspection well underwater pipeline and flow direction detection method, device, equipment and medium, and the inspection well underwater pipeline and flow direction detection method comprises the steps: obtaining sonar detection data of a plurality of target inspection wells by using target sonar scanning equipment equipped with a jacking rod rail device; the target sonar scanning equipment is used for transmitting an ultrasonic original frequency in a target inspection well and receiving a reflected target ultrasonic frequency; performing three-dimensional modeling on the target inspection wells according to the sonar detection data to obtain a target inspection well three-dimensional model of each target inspection well; according to the three-dimensional model of each target inspection well, determining a pipe orifice circle center coordinate of each target inspection well; the water flow direction of each target inspection well is determined according to the ultrasonic offset frequency data corresponding to the coordinates of the circle center of the pipe opening of each target inspection well, the water flow direction of each target inspection well is determined through sonar detection, and the accuracy of determining the water flow direction of the inspection well is improved.

This invention relates to the field of spectroscopic measurement technology, and particularly to a measurement system and method for measuring the concentration of high-temperature combustion gases in aero-engines. The measurement system includes a supercontinuum laser source, a first collimating mirror, a second collimating mirror, a spectrometer, and a computer. The measurement method includes acquiring the actual transmittance spectrum of the high-temperature combustion gases; calculating the theoretical transmittance spectrum of the high-temperature combustion gases; constructing constraints; fitting the actual transmittance spectrum and the theoretical transmittance spectrum into the constraints; and calculating the concentration of the high-temperature combustion gases. The measurement system has a lightweight structure, requiring only holes for mounting the laser emission and absorption devices on the inner wall of the aero-engine casing. The measurement method uses a supercontinuum laser source, which, compared to ordinary lasers used in active gas detection, offers better spatial coherence, a wider spectral adjustment range, and higher intensity, enabling the detection of more types of gases. The method uses a multi-band combustion gas absorption model to solve for the temperature of the high-temperature combustion gases, improving the accuracy of the concentration calculation.

The present application belongs to the field of exploration geophysics, and particularly relates to a transient electromagnetic perspective detection method for water-bearing area in a coal mining face. Measurement points are arranged in two roadways of the coal mining face. A transmitting wire frame is fixed at a first point of a transmitting roadway for transmission, and a receiving wire frame receives at different positions in a certain range of the opposite roadway. The transmitter and the receiver are consistent in time and can synchronously collect. After the first point transmits, the transmitting coil is moved to a next position for transmission at a second point. Similarly, the receiving coil can receive in a certain range of the opposite roadway. After the second point transmits, the third point transmits, and so on until the transmission of the whole roadway is completed. The transmitting roadway and the receiving roadway are exchanged, and the above steps are repeated until the whole face is detected, and then inversion calculation is performed. The present application can solve the problems of low positioning accuracy of water-bearing abnormal body and inaccurate abnormal shape discrimination of the existing mine transient electromagnetic method.

This application provides a method, apparatus, electronic device, and storage medium for detecting deforestation in forest areas, relating to the field of artificial intelligence technology, to solve the problems of poor real-time performance and high detection costs in forest deforestation detection. The forest deforestation detection method includes: upon detecting the presence of a first feature in a first forest area image, detecting the presence of a second feature in a second forest area image. The first forest area image is acquired by a detection device installed on an outdoor tower. The second forest area image includes all or some features of the first forest area image, and includes the first feature, which is a feature matching the features of deforestation equipment, and the second feature is a feature matching the features of tree felling. If the second forest area image contains the second feature, it is determined that deforestation has occurred in the forest area corresponding to the second forest area image.

The application belongs to the field of optical functional materials and detection applications, and relates to a terbium-doped fluorine-oxygen glass scintillator. The application discloses a terbium-doped fluorine-oxygen glass scintillator, which comprises the following components in terms of molar percentage: SiO2: 45-60%, Al2O3: 0-10%, MgF2: 2-10%, NaF: 2-15%, Na2CO3: 1-10%, B2O3: 0-15%, CaCO3: 0-10%, SrCO3: 0-10%, BaCO3: 0-10%, and TbF3: 0-5%. 3+ The application can adjust the terbium-doped fluorine-oxygen glass scintillator by adjusting the concentration of alkali earth metal, the ratio of B2O3 / Al2O3 or TbF3. The material in the application can be customized according to specific applications, thereby expanding the potential application market. The terbium-doped fluorine-oxygen glass scintillator has better performance than traditional scintillation crystals, and is expected to occupy part of the scintillator market by virtue of cost and performance advantages, and has high commercial value and practicability.

The invention discloses a nonmetal pipeline detection positioning device, method and system, and the positioning device integrates a sound generation device, a sound pickup, a main controller and the like through a detection box body, and an operator can carry one detection box body to carry out the detection work of a nonmetal pipeline. The sound generating device and the sound pick-up are used in cooperation, the position of the non-metal pipeline can be accurately determined by emitting the sound with the specific frequency and receiving the echo generated after the sound is transmitted in the non-metal pipeline, and the mode based on sound transmission is not limited by the non-conductive and non-magnetic characteristics of the non-metal pipeline; and the problem of non-metal pipeline detection can be effectively solved. The display device is installed on the detection box body and can display the position information of the nonmetal pipeline in real time. The main controller accurately analyzes and processes sound signals sent by the sound generating device and echo signals received by the sound pick-up, specific signals related to the non-metal pipeline are extracted, and the detection accuracy is improved.

This invention provides a high-speed integrated circuit test loading board calibration adapter and calibration method, belonging to the field of integrated circuit test systems. The calibration method includes: inputting a calibration signal into a signal input unit; the signal input unit inputs the differential signal from the calibration signal to the front probe array and the back probe array respectively, and inputs the common signal from the calibration signal to the front probe array and the back probe array; acquiring the position of the coordinate origin in the images of the front probe array and the back probe array; mapping the coordinates of all pads on the front probe array and the back probe array to the probe points of the probe card; and moving the probe card in the xyz direction according to the coordinates of the pads to achieve calibration of the loading board. The calibration method provided by this invention has the characteristics of high positioning accuracy, fast response speed, and ease of use.

The application provides a method and system for detecting radial velocity of a flow field, and the system for detecting radial velocity of a flow field is used to generate a common Gaussian light beam and a high-order vortex light beam with a non-zero radial coefficient; the high-order vortex light beam is used to irradiate a measured fluid and pass through the measured fluid to generate target detection light carrying radial information of the fluid, and the common Gaussian light is interfered with the target detection light to generate a heterodyne interference signal; a detector is used to detect the heterodyne interference signal and analyze a Doppler spectrum; and the radial velocity of the measured fluid is determined according to the Doppler spectrum. When the detection light irradiates the measured fluid, fluid particles in the measured fluid move radially in a light spot of a high-order vortex light beam orthographic projection, the application uses the high-order vortex light with an intensity distribution in the radial direction to detect the flow field to generate a Doppler effect, so that the radial velocity of the flow field is detected, and therefore the application has a wide application scenario.

The application discloses a water-carrying nonmetal underground pipeline positioning method, which comprises the following steps: injecting a vibration wave signal with a periodic characteristic frequency into a water-carrying nonmetal underground pipeline; capturing the vibration wave signal and calculating the arrival time of the vibration wave signal; and identifying the position and direction of the water-carrying nonmetal underground pipeline according to the characteristic frequency and the arrival time of the vibration wave signal. The application also discloses a water-carrying nonmetal underground pipeline positioning device, system and computer readable storage medium. The application generates a vibration wave signal with a periodic characteristic frequency by using the current magnetic effect principle, injects the vibration wave signal into the water-carrying nonmetal underground pipeline, calculates the first arrival time and the second arrival time before and after moving north, and identifies and detects the position and direction of the water-carrying nonmetal underground pipeline through data analysis and comparison.

This invention provides a rock fissure scanning and detection device and method for geotechnical engineering. The scanning and detection device includes a first cylinder with four square holes arranged in a circular array on its circumferential surface. Four sets of sealing components are arranged inside the first cylinder, corresponding to the square holes. A second power mechanism and a moving mechanism are also located inside the first cylinder. A push-out component and a camera are located on the left side of the moving mechanism. The moving mechanism is connected to the camera via the push-out component. The second power mechanism provides power to the push-out component, which is arranged in four sets, corresponding to the sealing components. This invention allows for detection of different locations of the detection holes with a single installation, reducing the operational difficulty for detection personnel and improving detection efficiency. Furthermore, the camera is protected when the invention is not in use.

This invention belongs to the field of pipeline flaw detection technology, specifically a high-pressure gas pipeline flaw detection device. Addressing the problem of existing flaw detection trolleys easily tilting during forward movement, the following solution is proposed: a mounting base with a U-shaped groove on its upper surface, the mounting base being a horizontally placed prismatic structure. Symmetrical inclined surfaces are reserved on both sides of the mounting base, and symmetrical support legs are provided at both ends of the two inclined surfaces. Symmetrical and vertically placed centering adjustment frames are fixed at both ends of the U-shaped groove. During use, when the mounting base tilts during device advancement, the component force generated by the counterweight ball under gravity quickly returns the mounting base to a horizontal state, ensuring that the device always advances along the lowest part of the pipeline. This facilitates position and orientation calculation and positioning, thereby improving the accuracy of flaw detection location.

The invention provides a millimeter wave living body detection radar system. The millimeter wave living body detection radar system comprises a millimeter wave transceiving antenna array, a transceiving front end, a frequency synthesis module, a radar control processing module and a display control computer. According to the invention, the technology of combining millimeter wave radar imaging and Doppler detection is adopted to detect insects carried in a luggage bag according to the detection requirement of the insects carried in the luggage bag; a Ka working frequency band is adopted, and the capability of penetrating materials such as foams, cartons and clothes is achieved; insects are detected by acquiring micro-Doppler information of a target and adopting a technology of combining millimeter-wave radar imaging and Doppler detection; the two-dimensional radar imaging capability and the original data storage capability are realized; a multiple-input multiple-output (MIMO) sparse array is used, compared with a real array, the number of antenna units used by the MIMO sparse array is far smaller than the number of image pixels, and cost and difficulty are reduced. The azimuth optimal resolution is less than or equal to 6mm, and the range resolution is less than or equal to 30mm.

The application relates to an unmanned aerial vehicle signal real-time detection system and method, a computer device and a computer readable storage medium, which are characterized in that a frequency domain processing channel for a flight control frequency hopping feature and a time domain correlation processing channel for a picture transmission signal cycle prefix are heterogeneously arranged in the same field programmable gate array (FPGA) system on chip, the problems of insufficient real-time performance of a unified processing architecture and unbalanced logic resource allocation caused by feature differences between a flight control frequency hopping signal and a picture transmission signal are solved, and comprehensive detection with microsecond-level low time delay and low power consumption is realized; meanwhile, the synchronization safety of cross-clock domain data interaction is guaranteed through a dual-port block memory mechanism, and the detection sensitivity and identification accuracy in a complex channel environment are greatly improved in combination with a multi-mode fusion strategy.

The invention provides a spectrometer based on a single-pixel single-channel single-photon detector and a detection method, and the spectrometer comprises a dispersion module which broadens a to-be-detected broadband light beam in space; the light beam path control module is used for controlling the light beam after space broadening to perform one-dimensional movement on the surface of the single-photon detector so as to ensure that light with different wavelengths is sequentially irradiated on the single-photon detector; the single-photon detector is used for detecting components with different wavelengths, realizing horizontal detection of a single photon and outputting a detection signal to the time-to-digital converter; the time-to-digital converter is used for recording and converting photon signal time information into digital signals; and the control system is connected with the light beam path control module and the time-to-digital converter, establishes single-channel communication with the single-photon detector, and is used for controlling the motion state of the light beam in the whole detection process and recording the photon count of each wavelength so as to obtain the wavelength-intensity corresponding relation of the light beam to be detected. The invention has the advantages of high detection sensitivity, high resolution, simple system and low cost.

The application provides an ultra-shallow junction deep low-energy electron detector, which comprises a silicon substrate containing opposite first and second surfaces; an ultra-shallow junction deep P-type doped layer formed on the first surface of the silicon substrate by forming a boron single layer on the surface of the silicon substrate and then performing thermal diffusion, the thickness of the P-type doped layer being 3-10 nm; an N-type doped layer formed on the second surface of the silicon substrate; a guard ring structure extending from the P-type doped layer towards the silicon substrate; a barrier layer formed on the P-type doped layer, a window being formed in the barrier layer, and a detection area of the electron detector being defined through the window; and a grid electrode formed on the P-type doped layer in the detection area. The application can effectively solve the problem of detecting low-energy electrons by the electron detector and effectively improve the detection efficiency of low-energy electrons.

The invention provides a novel seed embryo biological stack for capturing high-energy heavy ions in multiple directions in space, and relates to the technical field of space passive individual horizontal radiation detection.The novel seed embryo biological stack comprises seed fixing units capable of being combined in any number and detection pieces in the first direction, the second direction and the third direction, and each seed fixing unit comprises a supporting stand column; the supporting stand columns and the middle cross-shaped stand columns are perpendicularly fixed to the four corners and the center of the hollowed-out Chinese character'tian 'respectively to form an integrated structure, and the first direction detection piece and the second direction detection piece are installed in four installation spaces formed between the hollowed-out Chinese character'tian'-shaped base and the supporting stand columns. And the third direction detection sheet is mounted above the seed fixing unit in a covering manner. According to the invention, detection of all heavy ions in three vertical dimensions of X, Y and Z in space and six incident directions is realized, and a comprehensive radiation accumulation condition of a tested material can be provided.

The application belongs to the technical field of petroleum physical exploration, and particularly discloses a wellbore electric source time-domain electromagnetic measurement device and method. The device comprises a ground collection system, a cable, a remote transmission short section, an array electric source receiving sensor and a transmitting device. The ground collection system is connected with the remote transmission short section through the cable. The remote transmission short section is connected with the array electric source receiving sensor. The array electric source receiving sensor is connected with the transmitting device. The measurement mode of electric source excitation and array electric source receiving is adopted, the manufacturing process difficulty of three-dimensional magnetic source in the limited space of the wellbore is reduced, the problem of difficult quick shutdown of the multi-turn coil is solved, and the ultra-long detection of the radial geological information beside the well is realized.

The invention discloses a terahertz hybrid integrated resonant tunneling diode detector packaged by a metal waveguide, and belongs to the technical field of terahertz wireless transceiving, the terahertz hybrid integrated resonant tunneling diode detector comprises an RTD tube core, a substrate circuit and a metal waveguide packaging structure, the substrate circuit comprises a substrate, an A-surface circuit and a B-surface metal ground, and the A-surface circuit and the B-surface metal ground are located above and below the substrate; the A-surface circuit comprises a resonance circuit, a microstrip E-surface probe of a microstrip-waveguide conversion structure, a bias filtering structure and a bias pad which are connected in sequence; the resonance circuit comprises a double-opening resonance ring, an MIM capacitor and a shunt resistor, the MIM capacitor and the shunt resistor are located at the opening position of the double-opening resonance ring, parallel split branches are arranged in the double-opening resonance ring in the signal transmission direction, and the RTD tube core is located at the split position of the parallel split branches. According to the invention, detection and oscillation can be realized at the same time, the device can be cascaded with a mixer packaged by a metal waveguide, the device has the advantage of expandability, and compared with monolithic integration, the device has the advantages of low cost, high design flexibility, fast iteration and the like on the premise of ensuring the detection effect.