461 results about "Direction detection" patented technology

The invention discloses a directional detection method and system for a power supply shell based on a multi-source heterogeneous sensor, belongs to the field of material characteristic detection, and aims to solve the problems of single dimension, weak anti-interference performance, data isomerism and poor adaptability in traditional industrial detection. Through systematic innovation of multi-source sensor collaboration, dynamic mode control, cross-modal data fusion and self-learning optimization, a high-precision, high-efficiency and high-reliability solution is provided for the precision manufacturing field, and an optical, infrared and ultrasonic multi-modal collaborative detection framework is constructed; the optical unit realizes accurate capture of surface texture and morphology through polarized light imaging and 3D structured light scanning, the infrared thermal imaging unit analyzes the heat conduction characteristic of a material, and the ultrasonic array analyzes internal structure defects to form a surface-material-internal full-dimension detection capability; and nine types of defects such as scratches, pits, weld marks, bubbles, sink marks, material layering, stress cracking, thermal stress abnormity and material pollution are covered.

The invention discloses plastic pipe fitting air tightness detection equipment, and belongs to the technical field of plastic pipe fitting air tightness detection.The plastic pipe fitting air tightness detection equipment comprises a base, a pressurizing assembly is embedded in the upper end of the base, a pressure detector is arranged on the right side of the base, and two stand columns symmetrically distributed about the pressurizing assembly are fixedly connected to the upper end of the base; a connecting plate is slidably installed between the inner walls of the two stand columns, two symmetrically-distributed air cylinders are installed at the upper end of the connecting plate in an embedded mode, the telescopic ends of the bottoms of the air cylinders are fixedly connected with connecting blocks, and air pressure flow direction detection assemblies are installed at the lower ends of the connecting blocks. Then, the pressure detector can detect the pressure value in the pipe fitting in real time, the accuracy of airtightness value detection is guaranteed, meanwhile, under the condition that the inner wall and the outer wall of the pipe body are pressed, whether the pipe fitting has cracks or not can be detected, and therefore the yield of the pipe fitting is synchronously detected.

The invention provides an engineering drawing intelligent processing system based on a ComfyUI, and the system comprises an algorithm service module which integrates a plurality of drawing processing algorithm assemblies, such as drawing layout analysis, OCR recognition, drawing direction detection, semantic understanding, drawing frame disassembly, and axis net recognition, and provides services for the outside through a standardized interface; the workflow arrangement module is used for packaging the algorithm components into parameterized drawing processing nodes based on a visual node configuration framework of a ComfyUI, and supporting flexible combination, real-time preview and batch execution of drawing processing flows; and the workflow management module is used for importing, analyzing and publishing the workflow configuration file in the ComfyUI format, and realizing metadata management, publishing verification, API document generation, interface registration and call authority control of the workflow. The method supports multi-type input of PDF and CAD drawings, is suitable for engineering drawing processing tasks such as drawing label extraction, sub-drawing recognition, drawing frame segmentation and drawing filing, and is high in intelligent degree, flexible in process configuration, easy to integrate and high in expansibility.

The invention discloses size detection equipment for casting perforation processing, and relates to the technical field of size measurement. The device comprises a base, a supporting plate and a displacement assembly. The detection part goes deep into a workpiece hole through the contact ball, and the laser emitter and the light sensor are used for detecting the contact position, thereby realizing high-precision size measurement. The displacement assembly adopts the design of a negative pressure rotating cylinder and a resistance sliding rod, adjusts the displacement of a contact ball according to the rotating speed, and flexibly adapts to different hole requirements. Through the control of the planetary gear and the electromagnet, the contact ball can rotate to realize multi-angle detection. The detection table is driven by a central electric cylinder and an edge inclination control electric cylinder to stably adjust the posture of a workpiece. The device is high in automation degree and convenient to operate, and overcomes the defects of low precision, poor efficiency and single-direction detection of traditional manual measurement.

The invention provides a single-station lightning three-dimensional positioning system and method. The positioning system mainly comprises a direction detection unit, a distance detection unit, a GNSS time service unit, a positioning unit and a three-dimensional image generation unit. A plurality of VHF antennas, an electric field antenna and a magnetic field antenna synchronously collect lightning signals, the lightning signals are converted into digital signals through analog-to-digital conversion, and GNSS time service marks timestamps and stores the timestamps. The direction detection unit detects the time difference from the lightning radiation source to the VHF antenna, performs angle and time difference conversion, and calculates the elevation angle and azimuth angle of the lightning radiation source. And the distance detection unit performs fast Fourier transform on the acquired electric field signal and magnetic field signal, fits a ratio curve constant A and a ratio curve constant B, and calculates the distance between the lightning radiation source and the observation station. And matching the azimuth angle, the elevation angle and the distance information marked with the same timestamp, positioning the position of an instant lightning radiation source, and matching all positioning results of a continuous lightning event one by one according to the same timestamp to obtain a lightning three-dimensional graph in the space model.

The utility model discloses an automatic pipe arranging machine in the technical field of electronic components, a machine frame; a screening and sorting device, installed on the top of the machine frame, comprising a frame, a temporary storage bin, installed inside the frame, a delivery mechanism, installed at the lower outlet of the temporary storage bin, a strip-by-strip output mechanism, installed below the temporary storage bin, a direction detection mechanism, installed below the strip-by-strip output mechanism, a rotating direction-dividing mechanism, installed below the direction detection mechanism, a conveying mechanism, installed below the rotating direction-dividing mechanism, a handling mechanism, installed above the conveying mechanism; a grabbing and delivering device, installed on one side of the screening and sorting device; two expansion modules, respectively installed on both sides of the top of the rotating direction-dividing mechanism; the utility model can automatically realize direction detection and identification of the receiving pipe, automatically adjust the direction, locate the plug and automatically exclude unqualified pipe materials, realize orderly arrangement, and dynamically and automatically discharge them into the temporary storage bin of the tendon cutting machine, realize efficient warehousing, and cooperate with the work of the tendon cutting machine at any time.

The invention relates to the technical field of sensors, in particular to a bionic hair tactile sensor and application, and the sensor comprises a substrate and a bionic cilia array arranged on the substrate; the bionic cilia array comprises a plurality of flexible bionic cilia arranged in an array, and a marking layer is arranged at the bottom of the flexible bionic cilia; an optical system is integrated in the substrate, the optical system comprises an imaging module and a micro prism, and the micro prism reflects the deformation of the marking layer at the bottom of the flexible bionic cilia to the imaging module; and the imaging module is used for capturing deformation data of the marking layer and sending the deformation data to the deep learning algorithm module to realize decoupling and resolution of three-dimensional force. According to the invention, high-resolution multi-dimensional force detection and direction detection are realized through mark point change caused by cilium deformation, and the array design is expanded to a sliding sensing function and a multi-modal object identification function.

The invention discloses a wafer damage testing device and method, and relates to the technical field of wafer detection, and the method comprises the following steps: S1, device preparation and wafer fixation; s2, starting rotation and ultrasonic synchronous detection; s3, multi-angle data acquisition; s4, signal processing; s5, generating an automatic report; and S6, process matching. Through the meshing block, the placing tray, the fixing column and the meshing wheel, the wafer silicon wafer body is driven to rotate by one circle, the effect that the surface of the wafer silicon wafer body is comprehensively detected through the signal generating device is achieved when the wafer silicon wafer body rotates by one circle, and it is ensured that an ultrasonic probe scans the surface of the wafer silicon wafer body from all angles through rotation movement; and a blind area caused by single-direction detection is avoided.

The invention discloses a powder material filling control system with a multi-direction automatic butt joint function, and relates to the related field of filling control, and the system is characterized in that a verification unit is used for starting a butt joint auxiliary unit to carry out multi-direction detection, and a plurality of positioning direction data are determined to carry out automatic positioning; an alignment positioning frame is generated to align a filling head to a to-be-filled container opening to conduct automatic butt joint of powder materials, a material filling instruction is generated to activate an anti-overflow control unit to conduct material filling monitoring, a filling monitoring data set is obtained to conduct filling dynamic adjustment, a filling strategy is formulated to conduct filling interaction on the to-be-filled container, and filling interaction is conducted on the to-be-filled container. And an obtained material filling result is synchronized to the remote centralized management and control terminal to carry out intelligent filling control on the powder material. The technical problems that traditional filling equipment mostly depends on material filling in the fixed direction, automatic and accurate butt joint of a container opening is lacked, and dynamic adjustment in the filling process cannot be achieved are solved, and the technical effect that automatic alignment of a filling head and the container opening is achieved through real-time monitoring and feedback adjustment is achieved.

The invention discloses a clar steady-state filtering flow velocity and flow direction detection method, and belongs to the technical field of target detection, and the method comprises the steps: collecting and processing the real-time data of a fluid radar signal, and determining the target data of the fluid radar signal; analyzing and identifying the fluid radar signal target data, and determining a clar steady-state filtering flow velocity and flow direction detection result; and visually displaying the clar steady-state filtering flow velocity and flow direction detection result, and timely managing and controlling the fluid according to the clar steady-state filtering flow velocity and flow direction detection result. According to the invention, the problems of low flow velocity and flow direction detection precision and poor effect caused by the fact that the flow velocity and flow direction of the fluid cannot be effectively detected according to cfu steady-state filtering in the prior art are solved. The flow velocity and the flow direction of the fluid can be effectively detected according to cfu steady-state filtering, so that reliable flow velocity and flow direction detection results can be provided under various environmental conditions, and the flow velocity and flow direction detection precision and the flow velocity and flow direction detection effect can be improved.

The invention discloses a strength detection tool and method for a composite cabin for an unmanned aerial vehicle. The detection tool comprises a cabin connecting plate, an end fixing device, a force application adjusting device and a deformation measuring structure. The force application adjusting device comprises a one-way stress application structure, a torsional stress application structure and a stress transmission structure. The stress transmission structure is provided with a special-shaped stress plate, a one-way stress transmission piece and a torsional stress transmission assembly. Particularly, a multi-linkage test structure is arranged, and conversion from torsional moment to radial one-way pressure is realized through geometric constraint and contact mechanics principles. According to the detection method, a step-by-step loading and multi-direction detection mode is adopted, initial detection, surface change detection and multi-direction comprehensive detection are achieved, and the preset deformation quantity is rapidly achieved through a displacement control mode by means of the qualified deformation quantity value detected last time. According to the invention, bending moment and torque load detection in four directions of 0 degree, 90 degrees, 180 degrees and 270 degrees can be completed through one-time clamping.

The utility model discloses a stator lamination detection device, which comprises a detection workbench and a fixed table, the fixed table is fixed in the middle of the top of the detection workbench, the detection workbench is provided with a synchronous clamping mechanism, the synchronous clamping mechanism is arranged around the fixed table, the upper end of the detection workbench is rotatably connected with a rotary base, and the rotary base is connected with a motor. Lifting guide rods are evenly distributed on the rotating base in the circumferential direction, partition plates are arranged on the inner walls of the lifting guide rods, a multi-direction detection mechanism is arranged on the lifting guide rods, and the synchronous clamping mechanism comprises a guide groove, a distance adjusting screw rod, a distance adjusting sliding block, a fixing plate, a gear motor and a bevel gear. The multi-direction detection mechanism comprises a lifting sliding block, an air cylinder, a linear motor sliding rail, a linear motor sliding table, a first ceramic detection contact and a second ceramic detection contact. The utility model belongs to the technical field of stator lamination detection, and particularly relates to a stator lamination detection device.

A mobile device sends to a radio communicatively coupled to the mobile device, an instruction to monitor a frequency band. It is determined that the frequency band is jammed by a jamming source. The mobile device receives, from the radio, signal waveform information corresponding to the frequency band that is received by the radio from a 360 span about the radio. Based on the waveform information a direction of the jamming source is determined. The mobile device presents on a display device information that indicates that the frequency band is being jammed, and a direction of the jamming source with respect to a current location of the radio.

The present application belongs to the field of machine vision defect detection, and in particular to a thermocell electrode sheet vision defect detection method and a vision defect detection device. Product size information of a thermocell electrode sheet is obtained, and the field of view of a camera is configured. A thermocell electrode sheet to be detected is placed on a detection platform, front surface images, side surface images, back surface images, and inner hole images of the thermocell electrode sheet are captured by multiple direction detection cameras, and are processed to obtain the to-be-detected images of the front surface images, the side surface images, the back surface images, and the inner hole images. According to the to-be-detected images of the front surface images, the side surface images, the back surface images, and the inner hole images, a trained YOLO8 recognition model is used to describe and determine defects.

A radiation source direction detection device according to the present invention includes: a radiation detection unit in which a plurality of pixels for detecting radiation are discretely arranged three-dimensionally; and a computation unit that performs computation for identifying the direction of a radiation source on the basis of the result of the radiation detection by the plurality of pixels in the radiation detection unit.

A marine maneuvering system for a marine vessel is provided. The marine maneuvering system comprises a marine vessel control unit configured to: obtain a requested movement of a joystick indicating a speed value and a direction value for an upcoming navigation of the marine vessel; obtain proximity signals from a proximity sensor in response to a target being sensed in at least portions of an environment surrounding the marine vessel at least towards a direction indicated by a direction value of the joystick; determine a distance between the marine vessel and the target based on the proximity signals; and control a force feedback device to apply a force feedback to the joystick based on the determined distance.

The invention provides a conference environment intelligent sound field control system. A main sound source module, a plurality of sound field node intensity adjusting modules, a human body recognition positioning module and a processing control module work cooperatively. The main sound source module integrates the functions of main sound production, direction adjustment, sound source reception and direction detection, and can automatically track the position of a speaker and adjust the direction of a sound source. And the sound field node intensity adjustment module optimizes the sound field effect at each part of the conference space through node sound reception, compensation sound production, intensity adjustment and node processing. The human body recognition positioning module tracks the positions of participants in real time and provides the positions to the processing control module for intelligent decision making. The system can automatically adjust the direction and intensity of the sound field according to the distribution of participants, guarantees the precise transmission of sound, and reduces the interference of environmental noise. According to the intelligent sound field control scheme, conference voice definition and communication efficiency are remarkably improved, conference scene requirements of various scales and layouts are met, and an intelligent and efficient acoustic solution is provided for a conference environment.

The invention discloses a railway track online movement detection system and method, and relates to the technical field of rail detection, and the technical scheme is that the railway track online movement detection system comprises a detection management platform module, a signal processing module is arranged at the connection end of the detection management platform module, and a data processing module is arranged at the connection end of the signal processing module; the signal processing module comprises a track geometric parameter detection management module, a track fastener detection module and a foreign matter detection module, and the track geometric parameter detection management module comprises a track height detection module, a track gauge detection module, a track direction detection module, a horizontal detection module and a triangular pit detection module. The rail geometric parameter detection and management module comprises an image monitoring module, a laser photoelectric monitoring module and an ultrasonic monitoring module. The rail geometric parameter detection and management system has the beneficial effects that the working efficiency of an inspection mode is high, problems on a railway transportation line are found in time, a scientific and reasonable method is applied in time to maintain and repair the line, and good operation of the line and transportation safety are ensured.

The utility model provides a wind speed and direction detection device, and relates to the technical field of environmental parameter detection. The wind speed and direction detection device comprises a bearing shell, a processor and a plurality of atmospheric pressure sensors, the processor and the atmospheric pressure sensors are all installed on the bearing shell, the processor is in communication connection with the atmospheric pressure sensors at the same time, and each atmospheric pressure sensor is used for obtaining wind pressure. The device can improve the detection precision, prolong the service life, improve the application range and reduce the operation cost.

The utility model relates to the technical field of electronic component detection, and discloses a detection device for electronic component production, which comprises a detection bin, a rotating component is mounted in the detection bin, a moving component is arranged in the detection bin, and clamping components are arranged on two sides above the moving component. According to the detection device for electronic component production, when two sets of clamping blocks are used for clamping an electronic component, a second motor is started, the two sets of clamping blocks move backwards, the electronic component placed on a rotating disc can rotate in direction, and after being clamped again, the electronic component continues to be shot and detected by a first detection camera and a second detection camera; detection in a single direction is avoided, the shooting detection direction is expanded, the air cylinder can be started, the clamped electronic element is turned over, the turned electronic element is subjected to shooting detection and reverse turning detection again, and detection is more comprehensive.

The invention discloses a multi-wavelength laser collimator based on radial shearing. The multi-wavelength laser collimator comprises a near-field reference, a telescope objective combination, a bifocal objective and an image detector which are sequentially arranged along a light path. Aberration-free imaging of near-field light beams is achieved through a bifocal objective lens, and meanwhile far-field pointing is detected through coaxial shearing interference generated by means of amplitude light splitting. A single non-mobile sampling detection light path and a single detection sensor are used to realize simultaneous acquisition of near-field position information and far-field pointing information of a laser beam; the light spot position deviation and the fringe translation amount are analyzed through a computer, and high-precision collimation is achieved through a feedback control system. And the detection of the angle direction of the laser beams with various wavelengths can be realized by using a radial shearing interference technology. The device breaks through the limitation of traditional double-optical-path collimation, has the characteristics of simple structure, strong anti-interference performance, multi-wavelength applicability and the like, remarkably improves the collimation precision, reduces the cost, and has important application value in the field of laser precision collimation.

The invention discloses an anti-interference mounting structure of an inductive sensor, and aims to solve the technical problems of insufficient mounting space and limited application scene caused by high requirement on interference-free distance of peripheral metal of the conventional TURCKNI100U-K90SR-VP4X2 type inductive sensor, the structure comprises a metal protection box, an electromagnetic shielding assembly and a sensor body; the electromagnetic shielding assembly comprises two electromagnetic shielding films with the size of 25 * 10 * 0.5 mm, and the two electromagnetic shielding films are attached to the two sides of the upper portion of the sensor body respectively. The top of the metal protection box is provided with a non-transparent anti-aging plastic cover plate, one end is provided with a through hole for wire connection, the inner wall of the bottom is provided with a sensor mounting blind hole, and the outer wall is provided with an equipment fixing guide hole. The metal interference-free distance around the sensor is shortened to 18.5 mm through local electromagnetic shielding, meanwhile, it is guaranteed that the detection distance of the sensor in the vertical direction is not attenuated, sealing protection of the sensor is achieved through the protection box, the application scene of the high-detection-distance inductive sensor is remarkably expanded, and the high-detection-distance inductive sensor is particularly suitable for mechanical equipment in a narrow space.

The utility model provides an airing height self-adaptive system and a clothes airing machine, and relates to the technical field of airing. The airing height self-adaption system is applied to the clothes airing machine and comprises a main control module arranged in a main machine of the clothes airing machine and a distance detection module arranged on an airing rod of the clothes airing machine. The distance detection module is in communication connection with the main control module, and is used for detecting existence of a detection object within a preset distance from the airing rod to a preset direction and sending a detection result to the main control module; and the main control module is used for controlling the airing rod to stop lifting through a power system of the clothes airing machine according to the received detection result. According to the system, the distance detection module connected with the main control module is arranged, the airing rod of the clothes airing machine can stay at the airing height matched with the height of a detected object on the basis of the structure and line structure, airing height self-adaption of a user of the clothes airing machine is achieved, and the intelligent degree of the clothes airing machine is remarkably improved.

The invention belongs to the technical field of chemical reaction OCR (Optical Character Recognition), and particularly relates to a chemical reaction OCR method and system based on multi-model collaboration. The recognition method comprises the following steps: (1) reaction image data, (2) a chemical reaction detection model, (3) a reaction role detection model, (4) a compound recognition model, (5) a text recognition model, (6) a direction detection model, (7) result merging, (8) verification frequency judgment, (9) leak detection verification, (10) molecule legal verification, and finally outputting a standardized chemical reaction Smiles expression result. The method has the capability of independently analyzing the chemical reaction equation in the pure image form, and the applicability and robustness in complex documents and unstructured scenes are remarkably improved.

The invention relates to the technical field of meteorological remote sensing, in particular to a three-dimensional wind speed and wind direction detection method and system based on GNSS tomography inversion, and the method comprises the steps: building a three-dimensional water vapor density tomography inversion model through obtaining observation data and meteorological observation data of a plurality of GNSS observation stations, obtaining water vapor density distribution of different height layers, and obtaining a three-dimensional wind speed and wind direction detection model; further obtaining the PWV (atmospheric precipitable water) of each height layer; a three-dimensional wind field inversion algorithm is established by utilizing a coupling relation between water vapor transportation and a wind field and combining a spatial position of a GNSS observation station and spatial and temporal variation characteristics of PWV of different height layers, so that quantitative estimation of wind speeds and wind directions of the different height layers is realized, and three-dimensional wind speed and wind direction quantitative detection based on GNSS tomography inversion can be realized. And important observation data support is provided for meteorological monitoring and numerical weather forecast.

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.

The invention discloses a hangar unmanned aerial vehicle wind disturbance resisting landing system based on multi-mode perception, which comprises an unmanned aerial vehicle, a hangar, a wind speed and direction detection unit and a visual identification unit, and is characterized in that the wind speed and direction detection unit is arranged on the hangar, and the visual identification unit is arranged on the unmanned aerial vehicle; the hangar comprises a base and a parking apron, the parking apron is rotationally connected to the base, and the landing area is arranged on the parking apron; a centering driving device and two bin covers are arranged on the parking apron, and the centering driving device is used for driving the unmanned aerial vehicle to center; the two bin covers are rotationally connected to the two longitudinal sides of the parking apron correspondingly, the bin covers are configured to be switched among a closed state, a windproof state and an open state, and when the bin covers are in the windproof state, the bin covers rotate to the highest position; the centering driving device comprises two transverse push rods and two longitudinal push rods, and the landing area is located between the two transverse push rods and the two longitudinal push rods; during landing, when the wind speed and wind direction detection unit detects that the wind speed is larger than a preset threshold value, the bin cover is controlled to be switched to the windproof state.

The invention discloses an ultrasonic guidance navigation system based on multi-modal detection and a CNB ejection mechanism, and belongs to the technical field of ultrasonic auxiliary diagnosis, multi-modal detection loads a directional bounding box model and a segmentation model when the system is initialized, and the directional bounding box model performs directional detection of a puncture needle on an input frame; in the result extraction stage, puncture needle information is extracted from a directional bounding box model detection result, a focus mask is extracted from a segmentation result, and the focus mask is adjusted to be the same as an input frame in size; when the focus mask is extracted, the validity of a segmentation result is verified, then first effective mask data are extracted from multiple types of segmentation results, the mask data are transmitted to a CPU from a GPU memory, a floating point probability value is converted into an integer binary mask, and puncture needle direction detection and segmentation of multiple types of anatomical structures are achieved. According to the CNB ejection mechanism, a mathematical model of the ejection process is established through an ejection trajectory calculation function, and a reliable mathematical basis is provided for CNB ejection operation diagnosis.

The utility model provides a pipe network flow direction detection device, which comprises a fixed part fixed at the top of a pipe network, the top of a support is hinged with the fixed part, the bottom of the support is respectively and rotatably connected with a floater assembly and a plectrum assembly, and the floater assembly is heavier than the plectrum assembly and is positioned at the top of the plectrum assembly. The floater assembly can synchronously move along with water flow so as to drive the support to rotate relative to the fixing part, a trigger ball and a trigger switch are arranged in the shifting piece assembly, the trigger ball can move relative to the trigger switch, and the shifting piece assembly can synchronously move along with the water flow so as to drive the trigger ball to move relative to the trigger switch. The installation requirement precision is low, the manufacturing and maintenance cost is reduced, and assembly and disassembly are convenient; the support can be driven to rotate through the floater assembly, so that the support is driven to rotate when water flow impact exists, the support is driven to reset when no water flow impact exists, and the automatic reset effect can be effectively achieved.

The invention discloses a geologic body boundary extraction method based on gravity total horizontal derivative anomaly, and belongs to the technical field of geophysical data processing and interpretation. Calculating gravity total horizontal derivative anomaly based on actually measured gravity anomaly data; in the sliding window, detecting whether the gravity total horizontal derivative abnormity meets a preset extreme value structure condition in multiple directions, and screening out boundary points based on an amplitude threshold value and a slope threshold value; according to the invention, a geologic body boundary extraction method based on gravity total horizontal derivative anomaly is established by using directional extremum features of gravity total horizontal derivative anomaly; compared with a traditional boundary recognition method, the method does not depend on prior information, is high in anti-noise performance, can quickly and accurately recognize the boundary position of the geologic body under a complex background, and has higher boundary resolution.