22results about How to "Extend the scan range" patented technology

The invention discloses a multi-source fusion detection and formation recognition system for an unmanned aerial vehicle cluster. The multi-source fusion detection and formation recognition system comprises a radar detection system, a photoelectric detection system and an information processing module. The invention further discloses a multi-source fusion detection and formation recognition method for the unmanned aerial vehicle cluster. The method comprises the steps that the radar detection system obtains the initial azimuth information of the unmanned aerial vehicle; the information processing module generates guidance information according to the initial azimuth information; the photoelectric detection system tracks the unmanned aerial vehicle according to the guidance information to obtain an image of the unmanned aerial vehicle; and the information processing module obtains the three-dimensional position information of the unmanned aerial vehicle according to the initial azimuth information and the unmanned aerial vehicle image, carries out the recognition of the unmanned aerial vehicle cluster formation pattern, and obtains a formation pattern structure. According to the method, accurate identification and three-dimensional coordinate acquisition of individual targets in a long-distance high-resolution unmanned aerial vehicle cluster and feature identification of the formation of the unmanned aerial vehicle can be realized, and high-reliability information support is provided for command, control and strike decisions.

The invention provides a beam scanning device, and the device comprises an antenna module, the antenna module comprises S antenna arrays, and S is an integer greater than 1; a coverage area of the satellite communication system is divided into S sub-areas according to quadrants, and each antenna array is used for carrying out beam scanning on one sub-area. The invention also provides an antenna array determination method and a satellite communication system. The technical problem of how to realize large-angle beam scanning by a satellite communication system is at least solved.

The utility model provides a satellite antenna structure and a satellite communication device, and relates to the technical field of satellite communication. The satellite antenna structure provided by the utility model comprises a plurality of antenna array surfaces, the angles of the plurality of antenna array surfaces are different, and the plurality of antenna array surfaces can work independently; each antenna array surface is used for forming a beam coverage area; according to the invention, the corresponding wave beam coverage areas are respectively formed at different angles through the plurality of antenna array planes, so that the whole airspace is correspondingly divided into the plurality of sub airspaces, the coverage of the whole airspace is realized, the scanning range is improved, the angle required by each antenna array plane during scanning is reduced, the scanning loss generated during large-angle scanning is reduced, and the scanning efficiency is improved. The antenna gain is improved; and secondly, the plurality of antenna array surfaces can independently work to generate wave beams, so that the satellite antenna structure can generate a plurality of wave beams at the same time, thereby obtaining a wider wave beam coverage range at the same time, and improving the scanning efficiency.

The invention relates to a small animal detection device based on a holder double-camera technology and a detection method thereof. The device comprises a holder, a 3D camera, a zoom camera and an edge calculation controller, the holder at least has two rotational degrees of freedom; the 3D camera and the zoom camera are installed on the holder side by side. The edge calculation controller is respectively connected with the holder, the 3D camera and the zoom camera, so that the rotation angle of the holder can be controlled, and whether a small animal exists or not can be judged according to information acquired by the 3D camera and the zoom camera; according to the invention, rough scanning is carried out through the 3D camera, whether abnormity exists is rapidly judged according to the morphology difference value, and the abnormal position is amplified and captured through the zoom camera, so that the to-be-detected target has a large proportion in the picture, interference of light and shadow changes and the like on a common visible light camera is avoided, misjudgment is reduced, identification is facilitated, and the detection accuracy is improved. The system has the advantages of high efficiency, clear snapshot, high yield and the like, and meanwhile, the pan-tilt expands the scanning range and can cover a large range.

The utility model discloses an AGV vehicle-mounted laser radar installation structure, and relates to the AGV dolly technology field, the AGV vehicle-mounted laser radar installation structure comprises a pedestal, a rotary table, a bottom plate, a protection plate and a clamp assembly, the top of the pedestal is rotatably connected with the rotary table, the left side of the top of the pedestal is provided with a driving motor, and the outer walls of the two sides of the pedestal are symmetrically provided with two groups of connection support legs with the same structure; according to the invention, through cooperative use of the driving motor and the rotary table, rotation fine adjustment of the laser radar body is facilitated, the scanning range of the laser radar body can be improved, the working efficiency of an AGV vehicle is effectively improved, and the AGV vehicle is helped to run along a path better. Meanwhile, the protective plate and the bottom plate can be conveniently opened and closed, the laser radar body can be conveniently installed, maintained and replaced, and the laser radar body installed on the bottom plate has a good protection function due to the use of the clamp assembly.

The invention relates to the technical field of optical detection, in particular to optical detection equipment applied to fastener production and processing, which comprises a gate-type main frame, electric control type turnover frames are hinged to two sides of the inner bottom surface of the gate-type main frame, and electric control type material conveying belts are mounted in the electric control type turnover frames; and optical detection modules are fixedly mounted at the upper ends of the two sides of the gate-type main frame through cross beams. According to the optical detection equipment applied to fastener production and processing, electric control type overturning frames are hinged to the two sides of the inner bottom face of a door type main frame, electric control type conveying belts are installed in the electric control type overturning frames, and optical detection modules are fixedly installed at the upper ends of the two sides of the door type main frame through cross beams; therefore, optical scanning is carried out on the fasteners in the lower conveying process from multiple angles, and the scanning range of the fasteners is widened. And a plurality of built-in cross beams are arranged in the top assembly frame, and the upper ends of the built-in cross beams are provided with electric control type material turning plates, so that the fasteners on the surface can be turned over and adjusted, and the detection range is wider.

The present invention discloses an upright breast CT imaging device and a data acquisition method thereof, wherein the upright breast CT imaging device comprises: a bottom base, comprising a bottom base front base and a bottom base rear base; an upper base, located above the bottom base rear base, comprising an upper base front support and an upper base rear base; a rotating arm is installed on one side of the upper base front support, and a first synchronous transmission wheel, an encoder reader base, a slip ring device and a breast traction device are installed on the other side in sequence from bottom to top; a driving motor and a right-angle reducer and a second synchronous transmission wheel are installed on the upper base rear base; a scanning hole bracket is located above the bottom base front base. The upright breast CT imaging device provided by the present invention is small in size and can be continuously rotated 360 degrees. While achieving accurate positioning of the lesion, it greatly reduces the radiation dose.

This application discloses a multi-angle adjustable laser scanning device, belonging to the technical field of laser scanning equipment. It mainly includes a reinforcing base and a laser scanner body. A reinforcing rod is connected to the top of the reinforcing base, and a support plate is connected to the top of the reinforcing rod. This multi-angle adjustable laser scanning device allows for easy rotation of the laser scanner body around the X-axis via a first driving source. A second driving source drives a drive gear to rotate, which in turn drives a meshing driven gear, facilitating horizontal rotation of the entire laser scanner body around the X-axis. This allows for multi-angle adjustment of the laser scanner body's orientation, expanding the scanning range, and eliminating the need for manual adjustment by the operator, thus improving ease of operation. The hinged base allows the second support rod to adjust with the rotation of the first driving source, providing support and preventing tilting or wobbling.

The invention discloses an oral cavity scanning device for an edentulous patient, and relates to the technical field of oral cavity scanning, the oral cavity scanning device comprises a main shell, two sides of the main shell are rotatably provided with fixing wings for fixing the inner wall of the oral cavity of the patient; the scanning mechanism comprises a scanning head arranged at the front end of the main shell and located between the two fixed wings, the side, facing the main shell, of the scanning head is telescopically connected with a connecting shell, the end, away from the scanning head, of the connecting shell is rotationally connected with a connecting plate, and the top of the connecting shell and the top of the connecting plate are rotationally connected with linkage mechanisms used for coordinating distributed rotation; the end, away from the connecting shell, of the connecting plate is connected with a control module used for coordinating unified control, the end, away from the connecting plate, of the control module is connected with an electric push rod providing thrust, and the outer surface of the control module is connected with an adjusting wheel used for arranging transverse rotation of the scanning head in a surrounding mode. The invention has the advantages of simple operation, difficulty reduction and personnel comfort improvement.

This invention provides a cathode-unitized X-ray source, a static CT imaging system, and an image enhancement method, comprising: a vacuum tube; a cathode end for emitting electron beams, the cathode end including an exposure control module and multiple electron emission units arranged in a matrix on the same side of the exposure control module, all electron emission units being independent and electrically connected to the exposure control module; an anode target bombarded by the electron beam, the anode target including an anode body and a target surface formed on the anode body, the target surface being located on the emission path of the electron emission units; when the exposure control module receives an external control signal, it establishes a voltage line between the selected electron emission unit and the exposure control module, the electron emission units emitting electrons one by one or row by row toward the target surface, and the target surface reflecting X-rays to a window under the bombardment of electrons. This invention can increase the scanning range, improve the image quality of static CT, and extend the lifespan of the X-ray source.

The present invention discloses a visual image transmission elevator door protection device, comprising a car door body, a car door sill body, a reflective strip body, a first door machine hanging plate body, a diffuse reflection light source body, a second door machine hanging plate body and a CCD photosensitive element body, wherein a car door sill body is arranged at the bottom of the car door body. The present invention solves the problem of the elevator door pinching the hand, avoids the operator's hand being pinched due to improper operation or carelessness, and can effectively make the pinched hand escape from the inside, reduce the harm to the operator, and replace the original light curtain of the elevator through the CCD visual system. The scanning range is increased to form a detection without dead angles, solves the problem of the CCD photosensitive element body not being installed quickly enough, makes it more convenient to install the CCD photosensitive element body, and is also simpler to operate during maintenance and replacement in the later stage, thereby improving the installation and replacement efficiency of the operator.

The utility model discloses a multi-angle adjustable scanning camera, which comprises a supporting column, a chassis is arranged at the bottom end of the supporting column, a scanning camera body is arranged on one side of the supporting column, an adjusting mechanism is arranged in the supporting column, and a rotating assembly is arranged between the bottom end of the supporting column and the chassis; the adjusting mechanism comprises a sliding groove formed in the supporting column, a screw rod is rotationally connected into the sliding groove, a moving block is slidably connected to the outer side wall of the supporting column, the interior of the moving block is slidably connected with the sliding groove, and the interior of the moving block is connected to the outer side wall of the screw rod in a sleeving mode and is in threaded connection with the outer side wall of the screw rod. A graduated scale is embedded in one side of the supporting column, a worker observes the first pointer and the graduated scale, so that the effect of accurately adjusting the height of the scanning camera body is achieved, the adjusting mode is more accurate compared with an adjusting mode in the prior art, and the effect of rapidly adjusting the angle of the scanning camera body is achieved.

The invention discloses an adjustable filter based on a micro-electro-mechanical system (MEMS), a working method of the adjustable filter and a spectrograph, and the adjustable filter comprises an MEMS reflector, a first lens, a second lens, a diffraction grating and a third optical element. Wherein the MEMS reflector is used for generating rotation based on triggering of an electric signal, rotating to different angles at different moments, and reflecting input light, so that the input light reaches the diffraction grating through the first lens and the second lens; the diffraction grating is used for diffracting the incident light with different wavelengths to different angles, and the diffracted light rays diffracted to different angles form output light through the third optical element; the output light is used for spectral analysis.

The utility model relates to the technical field of mobile robots, in particular to a chassis structure and a robot. The chassis structure comprises a chassis frame and a mounting frame, and a driving assembly is mounted on the chassis frame and used for supporting the chassis frame; the mounting frame comprises a mounting plate, the mounting plate is arranged on the chassis frame and located above the chassis frame, a radar assembly and a plurality of supporting columns are arranged at the top of the mounting plate, the supporting columns are arranged on the side edge of the radar assembly, and the supporting columns are used for supporting the functional structure so that the mounting plate can be separated from the functional structure. According to the chassis structure and the robot, the radar assembly is arranged at the gap between the chassis structure and the functional structure, so that one radar assembly can scan the periphery of the chassis structure, the scanning range of the radar assembly can be expanded, the advancing safety of the chassis structure can be improved, the number of the radar assembly can be reduced, and the working efficiency is improved. The manufacturing cost is reduced.

The invention provides a low-profile-based fully-polarized wide-angular-domain near-far field wave beam two-dimensional adjustable holographic metasurface and a regulation and control method, the metasurface comprises a top metal plate, the top metal plate is provided with a T-shaped coupling structure array, the T-shaped coupling structure array comprises a plurality of novel coupling units, and the novel coupling units are arranged on the top metal plate. And radio frequency switches are arranged in the vertical direction and the horizontal direction of each novel coupling unit and are used for controlling coupling radiation. The FPGA control circuit and the direct feed network are arranged on the lower layer of the second dielectric substrate, and the direct feed network applies different direct current bias voltages to the center of each novel coupling unit so as to control the on or off of the radio frequency switch. The invention has the advantages of simple structure and low cost, can easily realize the multi-polarization wave beam at any direction of a far / near field, realizes the scanning of the wave beam at a pitch angle and an azimuth angle, and can achieve the scanning of a far-field pen-shaped wave beam at a large angle of + / -70 degrees and the scanning of a near-field Bessel wave beam at a large angle of + / -60 degrees.

The invention provides a radiation inspection system which comprises a scanning device, the scanning device comprises a radiation device and a detection device, the radiation device and the detection device are matched with each other to scan an inspected object, the radiation device is located on one side of the inspected object and comprises at least two radiation sources, and the at least two radiation sources of the radiation device are arranged in the first direction; each radiation source comprises at least two sub-light sources arranged at intervals in the second direction, the first direction is perpendicular to the second direction and intersects with the opposite arrangement direction of the radiation device and the detected object, and in the at least two radiation sources of the radiation device, any two adjacent radiation sources in the first direction are partially overlapped in the second direction. Therefore, the accuracy of the inspection result of the radiation inspection system can be improved.

The invention discloses a method for expanding an OCT (optical coherence tomography) scanning range based on assistance of a mechanical arm, and relates to the technical field of biomedical imaging. S200, carrying out OCT scanning and storage; s300, surface detection is carried out; s400, the pose of the mechanical arm is adjusted in a self-adaptive mode; s500, performing global scanning on the scanning area range; and S600, reconstructing a three-dimensional image. According to the invention, the whole process from sample surface detection, attitude adjustment to image reconstruction is realized, the OCT scanning range is expanded, and the application scene of OCT in the medical and industrial fields is expanded.

The utility model provides a boring cutter detection device, relates to the boring cutter technical field, the boring cutter detection device comprises a cutter detector and two cameras, the surface of the cutter detector is provided with a cutter holder and a display screen, the surface of one side of the cutter detector is fixedly connected with a slide rail, the surface of the slide rail is provided with a mounting rack, and the mounting rack is provided with two cameras. The mounting frame is fixedly connected with the two cameras through an adjusting device, the adjusting device comprises a mounting plate, the mounting plate is fixedly mounted on the inner wall of the mounting frame, rotating rods are rotationally arranged on the inner walls of the two sides of the mounting plate respectively, and the rotating rods are fixedly connected with one side of the mounting frame; two rotating shafts are rotatably arranged on the surface of the mounting plate in a penetrating mode, and when the tool detector is used for detecting a boring tool, the scanning range and the scanning angle of the camera can be further enlarged, so that the boring tool is detected more comprehensively and fully, the detection range is widened, and the practicability of the tool detector is improved.

This invention relates to a reconfigurable underwater 3D laser scanning system and method, belonging to the field of underwater robot underwater environment 3D scanning technology. It solves the problems of non-reconfigurable underwater laser scanning systems, such as fixed structure, inability to change the scanning beam and form according to actual needs, leading to sparse point cloud data, insufficient information acquisition, slow scanning speed, and small detection range. The system includes an underwater camera module, a laser emitter module, a parallel circuit module, and a data processing center module unit. The laser emitter module is electrically connected to the parallel circuit module, and the underwater camera module, parallel circuit module, and data processing center module unit are electrically connected. This invention allows for the addition of underwater camera modules and laser emitter modules according to the needs of the underwater robot, expanding the scanning range and increasing the field of view. It has advantages such as simple structure, flexible scanning mode, dense point cloud data, and accurate imaging.

The present application belongs to the technical field of analysis and detection of medium and large-sized casting blanks, and relates to a part machining allowance detection method and system based on automatic three-dimensional scanning, which comprises a robot system for omnidirectional scanning of parts, a tracker system for tracking and collecting the physical position of a scanner, a control cabinet for electrical control and power supply, a rotating support platform, and an automatic control system. The end of the robot system carries the scanner to scan the part, and the rotatable part support device cooperates with the part to scan without dead angles. The scanning data is compared with the three-dimensional model of the part to realize automatic three-dimensional scanning detection of the part and improve the detection efficiency.

The invention belongs to the field of aerospace, and particularly relates to a double-reflector optical scanning rotary table. According to the invention, a larger light scanning angle in a limited load space is realized by arranging the scanning reflecting mirror with an adjustable pitch angle and assisting with the fixed reflecting mirror; furthermore, a fixed reflector framework with an adjustable pitch angle and a combination of various reflector surfaces are provided, so that a larger scanning range is realized, and the response sensitivity requirement of a subsequent signal processing system is reduced. In a limited layout space, the problems that the scanning view field of a traditional single-reflector scanning rotary table is reduced, the scanning area is reduced, and the corresponding space area scanning task cannot be completed are solved.