43results about How to "With rotation" patented technology

The invention relates to a DCNN based radar radiation source identification method. A one-dimensional (1D) waveform signal generated by a radar radiation source model is converted into a spectrogram by means of short-time Fourier transform (STFT), and different network structures are designed for the 1D waveform signal and spectrogram. Waveform signals are generated according to data generated by8 types of radar radiation source signal models; the waveform signals are transformed into the spectrogram by STFT, and data enhancement as well as transformation from waveform to images is realized;the waveform signals and spectrogram are input to the DCNN, and convolution and pooling are carried out to obtain characteristic information thereof; and the extracted characteristic information is input to softmax for classification. Via the method, the radar radiation source signals are classified and identified more accurately, and a radar signal identification result is better.

The invention provides an image object classification method, which includes the following steps: division: dividing an image object into a plurality of cells; probability distribution calculation: calculating the probability distribution of all the cells; complexity metric calculation: calculating complexity metric according to the probability distribution; and classification: determining the category of the image object according to the calculated complexity metric. The invention can be used for differentiating words and tables in a document image.

The invention relates to a kelp harvesting and sorting method. In the method, a plurality of parallel floating ropes with floats are arranged, lifting ropes are hung on the floating ropes at certain intervals, and each lifting rope is composed of an upper lifting rope segment and a lower lifting rope segment which are connected through a detachable rope fastener; the lower lifting rope segments oncorresponding portions of the adjacent floating ropes are connected through cultivating ropes, kelp is hung on the cultivating ropes, and the adjacent cultivating ropes are connected end to end intoa whole through connecting ropes; a kelp harvesting and sorting robot walks between the adjacent floating ropes, the floating ropes penetrate through screw propulsion steppers on both sides of the kelp harvesting and sorting robot, unfastening devices on the kelp harvesting and sorting robot loosen the rope fasteners one by one to make the cultivating ropes and the kelp on the cultivating ropes fall onto a kelp sorting machine, a lifting mechanism lifts the cultivating ropes and the kelp on the cultivating ropes and rotates to a kelp stacking area of a transport ship on one side, and the kelpcultivating ropes are wound around chain hooks on the kelp sorting machine and fall into the kelp stacking area.

The invention provides a drill splitting trolley for tunnel excavation. The drill splitting trolley comprises a chassis, a drill splitting device, a splitting device, an electrical system and a hydraulic system; a frame is arranged on the chassis; the drill splitting device and the splitting device which are respectively used for drilling and splitting rocks are mounted on the frame; the electrical system and the hydraulic system are arranged on the chassis, the electrical system is used for controlling operation of the drill splitting device and the splitting device, and the hydraulic systemis used for providing power to the drill splitting device and the splitting device; the drill splitting device and the splitting device are integrally mounted at the front end of the frame and are respectively located on the upper portion and the lower portion of the front end of the frame, and under the action of the electrical system and the hydraulic system, the drill splitting device and the splitting device adopt a transposition mechanism to perform drilling and splitting the rocks in turn. The drill splitting trolley adopts multi-freedom operation arms, which have high controllability, wide construction range, high construction efficiency and high safety performance.

The invention discloses a convolutional neural network and tree-hash combination indexing-based image retrieval method. The method comprises the steps of S1, collecting an image library and training a convolutional neural network model for the image library; S2, performing feature extraction on the convolutional neural network model to obtain a feature library; S3, establishing indexes for the feature library by adopting a tree-hash combination indexing method; and S4, performing retrieval according to an eigenvector v in the indexes to obtain a Top-n result. The tree-hash combination indexing method is adopted, so that compared with a pure hash algorithm, the retrieval effect is better under the condition of ensuring the same retrieval time.

The invention belongs to the technical field of oil development cementing tools and particularly provides a rotary guide shoe. The drainage rotary guide shoe comprises a rotating base and a guide end arranged at the lower end of the rotating base. The guide end is of a hollow structure, a plurality of blades in the inclined direction from top to bottom are arranged on the outer surface of the guide end, and drainage holes communicated with the inside of the guide end are formed between the adjacent blades. At least three rotating turbine blades connected through a blade base are arranged in the guide end, the blade base is arranged at the top of the guide end, a central hole is formed in the center of the blade base, a hollow column coaxial with the central hole is arranged on the bottom face of the blade base, the inner ends of the rotating turbine blades are connected with the hollow column, and the tops of the rotating turbine blades are connected with the blade base (13). At least three through holes are formed in the periphery of the blade base, and the through holes are respectively formed between the adjacent rotating turbine blades. The rotary guide shoe has rotating and guiding functions and is suitable for being used for special wells with long horizontal sections, stratum collapse and severe hole shrinkage.

The invention relates to a laser assisting ultraprecise flying cutting monocrystalline germanium two-dimensional optical rotary drum method, and belongs to the field of ultraprecise machining. An ultraprecise flying cutting unit, a laser assisting machining unit and a temperature closed-loop control unit are included; the ultraprecise flying cutting unit and a machine tool fixing platform are installed in the direction vertical to the flying cutting main shaft axis direction; the installation position of the laser assisting machining unit is located in the edge flying direction of a flying cutting monocrystalline germanium two-dimensional optical rotary drum of a flying cutter disc in the ultraprecise flying cutting unit; and the temperature closed-loop control unit and the laser assisting unit are installed on the same side, and the heating temperature is monitored in real time and is fed back and adjusted to achieve the laser assisting heating monocrystalline germanium material softening effect. The laser assisting ultraprecise flying cutting monocrystalline germanium two-dimensional optical rotary drum method has the beneficial effects that through the process of local preheating of the edge cutting position of the laser assisting ultraprecise flying cutting monocrystalline germanium two-dimensional optical rotary drum, the breaking strength of the edge cutting position of monocrystalline germanium fragile crystalline materials is reduced, it is guaranteed that the ultraprecise flying cutting process is high in quality and efficiency, and the edge breaking phenomenon of cut edge in the ultraprecise flying cutting process is avoided.

The invention provides a splitting device for tunnel excavation. The splitting device is used for being installed on an operation trolley; the splitting device comprises a boom support which is fixedly installed on the operation trolley, a telescopic arm connected with the boom support, a rotary system connected with the telescopic arm and a splitting arm connected with the rotary system; the rotary system comprises an auxiliary arm and a revolution arm connected with the auxiliary arm in a hinged mode, and the auxiliary arm is fixedly connected with the telescopic arm; and the splitting arm comprises a splitting arm pushing mechanism connected with the revolution arm and a splitting mechanism fixedly connected with the splitting arm pushing mechanism, wherein the splitting arm can performup and down pitching and left and right swinging together with the revolution arm through the auxiliary arm correspondingly, pushing power is provided for the splitting arm through the splitting armpushing mechanism, and rock crushing construction is performed through the splitting mechanism.

The invention discloses a visual target tracking method of a bionic retina, and belongs to the field of photoelectric target tracking. According to the invention, the variable resolution characteristic of bionic retina imaging is mainly utilized, and the field of view is mapped to the logarithm polar coordinates for target tracking. Firstly, logarithm polar coordinate mapping imaging of a bionic retina is utilized, a target tracking algorithm is improved through the staring effect of a fovea centralis, the information compression effect of an edge and real-time parameters, redundant data are compressed, detail information of an interested target is enhanced, and the information acquisition efficiency in a view field range is improved. And meanwhile, target information in a scene is accurately grasped by utilizing singular points and imaging threshold judgment, and the reliability of target screening is improved. And finally, real-time target tracking is realized by comparing an eccentricity judgment algorithm with higher speed with the motion control module. Compared with a traditional method, under the condition of a large field of view and high resolution, real-time target tracking is achieved on the basis of a bionic retina vision mechanism, efficiency is higher, and precision is higher.

The invention discloses a symmetrical 4-degree of freedom series-parallel hybrid antenna structure system, which comprises an antenna reflector. The antenna reflector is connected on an antenna pedestal; a polarization rotation device comprises a polarization plate and a fixing plate; the fixing plate is fixed at the top of the antenna pedestal; the polarization plate is located above the fixing plate; a rotating bearing is concentrically arranged between the fixing plate and the polarization plate; the polarization plate is fixedly connected with the inner ring of the rotating bearing; the fixing plate is fixedly connected with the outer ring of the rotating bearing; the center of the polarization plate extends outwards to form a toothed ring edge; a polarization motor fixed on the fixingplate is matched with the toothed ring edge to drive the polarization plate to rotate in an auto mode; a driving arm and a driven arm are provided with rotating rod shafts; the rotating rod shafts are hinged; the hinged rotating rod shafts generate the ability to rotate in the own circumference during a movement process, and thus, the rotating rod shafts can have rotating energy during use, and the radius of rotation can be improved when rotating directions coincide.

The invention discloses a rotary table type tool device. The rotary table type tool device comprises a fixed board, horizontal sliding rails, a horizontal straight line type toothed rail, a working frame, a rotary table, guide rail bases, a horizontal drive motor, a rotary drive motor and a tool clamp. The horizontal drive motor is provided with a horizontal drive wheel in fit with the straight line type toothed rail; the straight line type toothed rail and the two sliding rails are arranged in parallel in the horizontal direction; when the horizontal drive wheel of the horizontal drive motor and the straight line type toothed rail are in engaged rotation, under limiting of the guide rail bases and the sliding rails, the working frame moves in the horizontal direction; the rotary table, the horizontal drive motor, the rotary drive motor and the tool clamp move along the working frame synchronously in the horizontal direction; a rotary linkage wheel is arranged at the bottom of the rotary table; the rotary drive motor is provided with a rotary drive wheel in fit with the rotary linkage wheel; when the rotary drive wheel and the rotary linkage wheel are in engaged rotation, the rotary table rotates and synchronously drives the tool clamp to rotate. The requirements of slotting of special slots can be met.

The invention relates to a floating type wind-wave hybrid power generation platform. The floating type wind-wave hybrid power generation platform comprises fastening rings, pressure sensors, a controller, fastening lugs, a floating platform, sails, an anchor chain, an anchor, fly wheels, third gears, second chains, a first chain, first gears, second gears, gear racks, a first power generator, a first step-up gear box, a first inertial wheel, a first one-way bearing, a fifth gear, a third chain, a fourth gear, a sixth gear, a fourth chain, a second power generator, a second step-up gear box, asecond inertia wheel, a second one-way bearing and a seventh gear, wherein the multiple sails are mounted on the floating platform, the anchor chain is mounted below the floating platform, the anchoris mounted at the lower end of the anchor chain, and the controller is mounted on the floating platform. The floating type wind-wave hybrid power generation platform can utilize wind energy and wave energy.

The invention relates to a washing machine. A door cover is installed on a washing machine shell, a seal ring protruding and extending to the periphery is arranged on the inner side of the door cover,the seal ring is in elastic sealing connection with an inner drum opening, and when the door cover is buckled at the inner drum opening, the inner drum opening is sealed. In this way, when the door cover is buckled at the inner drum opening, the seal ring protruding from the periphery of the door cover makes sealing contact with the inner drum opening, the buckling connecting portion of the doorcover and the inner drum opening is sealed by the seal ring, the purpose that when the inner drum rotates, the drum opening is dynamically sealed, in the rotating process of the inner drum, water in the inner drum cannot flow out of the inner drum opening, and the inner drum has the double functions of rotating and water containing; meanwhile, an outer drum is not needed for sleeving the exteriorof the inner drum, the volume of the inner drum is increased, and the washing volume of the washing machine is increased.

The invention discloses a power supply plug, which comprises a shell, a plugging sheet and a wire connection device, wherein the plugging sheet is positioned on the bottom surface of the shell, and is provided with a live wire plugging sheet, a null wire plugging sheet and an earth wire plugging sheet; the wire connection device is positioned on the front surface of the shell and is concealed in the shell; the bottom surface of the shell is provided with an embedded groove, a strip-shaped plugging sheet base and a round plugging sheet base; the front surface of the shell is provided with a sliding cover plate; and the side surface of the shell is provided with a plugging sheet distance-adjusting handle. The power supply plug disclosed by the invention is provided with movable plugging sheets, thus the rotation and shifting of the plugging sheets can be realized, requirements of different sockets are met, and the using range is wide; and the power supply plug is provided with the flexible wire connection device, thus the power supply plug is connected with a power supply wire conveniently, the recycling of the power supply plug can be realized, the using efficiency is improved greatly, and the economic burden is relieved.

The invention belongs to the technical field of medical instruments, particularly discloses a balance training bicycle device and method thereof. The device mainly comprises a base, a front wheel base, a rear wheel base, a limiting swing structure and a modified bicycle on a mechanical structure, wherein the base, the front wheel base and the rear wheel base are assembled to simulate a ground riding environment, and the limiting swing structure is used for limiting the inclination angle of the bicycle. According to the device, a motor is used for driving the front wheel, and a training objectcan control the balance of the bicycle only by controlling a front fork or adjusting a self-gravity center position; a swing rod is used for connecting the bicycle and limiting and buffering the bicycle, so that the inclination angle of the bicycle is limited and certain comfort is provided. The device can be used for the rehabilitation training of training objects with body balance dysfunction, so that the enthusiasm of training objects for the rehabilitation training is enhanced, and can also be used for the prevention of some nervous system diseases.

A protein and nucleic acid binding site prediction method based on graph neural network characterization comprises the following steps: constructing a protein and nucleic acid interaction data set, extracting the position and feature information of each residue in the protein and the structural context thereof after sample fusion processing, and constructing graph representation of the structural context of the residues according to the graph representation. And predicting the graph representation of the to-be-predicted protein through the hierarchical graph neural network to obtain the probability that each residue is combined with DNA/RNA, thereby realizing prediction of the binding site of the protein and the nucleic acid. Key structures and feature patterns of binding sites are learned from graph representations through graph representations based on residues of structural context and a hierarchical graph neural network model.

The invention provides a vibration stirring type aggregate screening device. The vibration stirring type aggregate screening device comprises a screening main body structure, the screening main body structure comprises at least one screening frame, the at least one screening frame is internally provided with at least one layer of inverted V-shaped screening net with the middle being slightly highand the two sides being slightly low and a stirring device matched with the at least one layer screening net, each stirring device is arranged above the corresponding screening net and comprises a stirring shaft, a connection shaft and comb-like stirring teeth, and the stirring teeth are fixedly connected with the corresponding stirring shafts through the connection shafts and are also of invertedV-shaped structures with the middles being slightly high and the two sides being slightly low. By means of the vibration stirring type aggregate screening device, the screening efficiency can be effectively improved and the phenomena of screen jamming and stacking are avoided.

The invention discloses a hexapod bionic robot and a method thereof. The hexapod bionic robot comprises a body frame and a circuit mounting plate. The circuit mounting plate is located on the body frame, an annular slide rail is fixedly embedded into the top of the body frame, and two arc sliding blocks arranged symmetrically are slidably connected to the annular slide rail. Lifting assemblies arefixedly mounted at the tops of the arc sliding blocks, and the tops of the lifting assemblies are fixedly connected with the bottom of the circuit mounting plate. A driving assembly is fixedly mounted at the top of the body frame, and the top of the driving assembly is fixedly mounted to the bottom of the circuit mounting plate. A storage battery and an adjusting box are fixedly mounted at the top of the circuit mounting plate. The hexapod bionic robot is simple in structure and has practical functions such as lifting and rotating, the hexapod bionic robot can deal with severe outdoor exploration environment, solar cell panels are used to convert optical energy into electric energy, and thus the hexapod bionic robot is free of the condition of insufficient electric energy outdoors.

The invention relates to a cleaning device special for subway rails. The cleaning device comprises a vehicle body and a cleaning assembly installed on the vehicle body; the cleaning assembly comprises a brush unit and a dirt recovery unit, wherein the brush unit is used for sweeping up dirt, and the dirt recovery unit is used for sucking away the swept-up dirt; the brush unit comprises a center brush and side brushes, the center brush is used for cleaning away the dirt between the rails, and the side brushes are used for cleaning away the dirt on the two sides of the rails, and the center brush and the side brushes can rotate, rise and fall; and the dirt recovery unit comprises a dirt storing part and a vacuum suction part, the vacuum suction part communicates with the dirt storing part, and a dirt discharging part is installed on the dirt storing part. According to the cleaning device special for the subway rails, the overall structural design is ingenious and reasonable, the structure is simple, using is quick, safety and reliability are achieved, the automation degree is high, and the cleaning device is designed and manufactured specially for cleaning domestic subway rails; and cleaning cost is effectively reduced, the defects that manual sweeping is slow, water sprayed for cleaning cannot be recovered, and pollution is caused are overcome.

The invention discloses a rapid rescue channel device with wave compensation for an offshore rescue ship, and relates to the technical field of offshore rescue, the rapid rescue channel device comprises a front telescopic channel, a middle variable-amplitude channel and a rotary platform, the bottom of the front telescopic channel is provided with the middle variable-amplitude channel, and the left side of the middle variable-amplitude channel is provided with the rotary platform; a horizontal guide wheel is fixedly connected to one side of the front telescopic channel, and a horizontal guide rail is movably connected to one side of the horizontal guide wheel. A continuous and complete lifesaving channel can be formed, people in distress can conveniently go from a ship in distress to a rescue ship, the device has multiple functions of rotation, amplitude variation, stretching and the like, operation is flexible, laying and unfolding are rapid, and the device can be erected on any layer of deck of the ship in distress and is not limited by the height difference of the rescue ship and the deck of the ship in distress; the rapid rescue channel device has three-degree-of-freedom wave compensation capability, can work under high sea conditions, is simple in wave compensation mechanism and low in cost, and improves the reliability of the whole device.

The invention discloses a synthetic fiber web connecting device used for enclosure culture. A synthetic fiber web is manufactured into meshes of corresponding dimensions according to building spacingof enclosure culture facility piles, and stress rope steel is fixedly arranged on the edges of the meshes; a connecting buckle and a connector are combined, and are connected in a penetrating mode through a bearing to define a combined connector, so that the connecting buckle is kept in an open state; rope steel is correspondingly placed inside primary and secondary connecting buckles of the combined connector, and the primary and secondary connecting buckles are closed for allowing blocking teeth to enter blocking slots, so that a standard synthetic fiber web module is manufactured; connecting points of a net and the piles are designed according to strength design requirements, and mounting spacing, on the piles, of the pile pre-assembling parts is set, so that the pile pre-assembling parts are pre-fixed on the piles; and the synthetic fiber web module is fixed in a penetrating mode through a nylon rod after being aligned to mounting holes of the pile pre-assembling parts, and the bolts of the pile pre-assembling parts are locked, so that mounting of the net can be accomplished between the two piles.

The invention provides a crawler-type transfer device. The crawler-type transfer device comprises a control vehicle platform. A material conveying assembly and a control system are arranged on the control vehicle platform. A feeding mechanism and a discharging mechanism are arranged on the material conveying assembly. The feeding mechanism is in joint with the discharging mechanism. A walking mechanism is arranged at the bottom of the control vehicle platform. The material conveying assembly is rotationally connected with the control vehicle platform. The discharging mechanism is rotationally connected with the material conveying assembly. A first pitching mechanism is arranged on the feeding mechanism. A second pitching mechanism is arranged on the discharging mechanism. According to the crawler-type transfer device, the crawler walking mechanism, two belt conveyors, two swing bearings and the two pitching mechanisms are adopted, and therefore booms have the swing and pitching functions, a three-dimensional integrated mechanism is formed, and the three-dimensional effect can be achieved in the matched joint of the feeding mechanism and the discharging mechanism and the front process and the rear process.

The invention discloses a double-layer adjustable rotation belt conveyor for a bag loading and unloading boat. The double-layer adjustable rotation belt conveyor comprises a rotation fixing support (1), a rotation bearing (2), a fixed rotation belt conveyor (3) and an adjustable rotation belt conveyor (4), the fixed rotation belt conveyor (3) is fixedly connected with the rotation fixing support (1) through the rotation bearing (2), a rack (7) is arranged on the fixed rotation belt conveyor (3), a gear (6) is arranged on the adjustable rotation belt conveyor (4), the adjustable rotation belt conveyor (4) achieves flexible adjustment through the gear (6) and the rack (7), the adjustable rotation belt conveyor (4) is embedded in the fixed rotation belt conveyor (3), the rack (7) is arranged at the bottom of the fixed rotation belt conveyor (3), and the gear (6) is arranged at the bottom of the adjustable rotation belt conveyor (4). The double-layer adjustable rotation belt conveyor is complex in structure, small in occupied cabin space, big in unloading covering area, high in loading and unloading efficiency and applicable to ship-loading operation of continuous and mass bagged and sacked materials in ports and docks.

The invention provides a tool clamp for machining a cutting edge of a workpiece and an operation method of the tool clamp. The tool clamp comprises a driving clamping table; a positioning frame seat is fixedly connected to the left side of the driving clamping table; a movable pushing frame is connected to the middle of the driving clamping table in a sliding manner; a reversing pushing piece is fixedly connected to the upper portion of the driving clamping table through a screw; a clamping pushing piece is fixedly connected to the upper portion of a bottom plate of the driving clamping table through a screw, and an output rod of the clamping pushing piece is connected with and drives the lower portion of the movable pushing frame; a top frame is fixedly connected to an output push rod of the reversing push piece; a positioning pressing plate is fixedly connected to the left end of the movable pushing frame; and the top frame rotates to control the workpiece to rotate under the action of a positioning chuck, after the adjustment is completed, the clamping pushing piece pushes the movable pushing frame to move leftwards, the positioning pressing plate clamps the workpiece again, meanwhile, a positioning groove is matched with a positioning conical block, the top frame is locked, rotation of the top frame is avoided, multi-direction adjustment conversion of the workpiece is achieved, and machining is facilitated.