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71 results about "Dragonfly" patented technology

A dragonfly is an insect belonging to the order Odonata, infraorder Anisoptera (from Greek ἄνισος anisos, "unequal" and πτερόν pteron, "wing", because the hindwing is broader than the forewing). Adult dragonflies are characterized by large, multifaceted eyes, two pairs of strong, transparent wings, sometimes with coloured patches, and an elongated body. Dragonflies can be mistaken for the related group, damselflies (Zygoptera), which are similar in structure, though usually lighter in build; however, the wings of most dragonflies are held flat and away from the body, while damselflies hold the wings folded at rest, along or above the abdomen. Dragonflies are agile fliers, while damselflies have a weaker, fluttery flight. Many dragonflies have brilliant iridescent or metallic colours produced by structural coloration, making them conspicuous in flight. An adult dragonfly's compound eyes have nearly 24,000 ommatidia each.

Micro-grid group operation optimization method and system based on multi-target dragonfly algorithm

The invention discloses a micro-grid group operation optimization method and system based on a multi-target dragonfly algorithm, and the method comprises the steps: constructing a system model of a micro-grid cluster, and enabling the system model to comprise a plurality of micro-grids; taking the connection state of the plurality of micro-grids as a decision variable to represent the communication mode between the micro-grids; a dynamic grouping mechanism is introduced, and the connection relation of the multiple micro-grids is adjusted according to actual requirements; establishing a multi-objective optimization model, and designing operation constraint conditions; combining decision variables and constraint conditions, designing a structure-scheduling joint optimization strategy, and carrying out collaborative optimization on a micro-grid group structure and a scheduling strategy; and according to an optimization result, outputting a Pareto optimization scheduling solution set covering different operation preferences, and obtaining a low-carbon economic multi-energy-flow cooperative operation scheme of the micro-grid group. According to the method, the problems of local optimum and low convergence speed during multi-objective optimization in the micro-grid dispatching process can be solved.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD NANJING POWER SUPPLY COMPANY +1

Bionic dragonfly unmanned aerial vehicle

The utility model belongs to the field of unmanned aerial vehicles, and discloses a bionic dragonfly unmanned aerial vehicle which comprises a vehicle body, the vehicle body extends upwards in the vertical direction, the plane where the vehicle body extends completely serves as the upper surface of the vehicle body, four rotating and swinging mechanisms are movably installed on the upper surface of the vehicle body, and each rotating and swinging mechanism is movably connected with a wing. And each wing is movably connected with the upper surface of the aircraft body. According to the rotary swing mechanism, each wing swings relative to the aircraft body, the first front wing and the second front wing symmetrically swing by taking the reference surface as the reference, and the first rear wing and the second rear wing symmetrically swing by taking the reference surface as the reference; the symmetrical swing action is similar to the flapping process of wings when the dragonfly flies, so that the unmanned aerial vehicle can fly in a narrow area and can adapt to complex terrains in the narrow area compared with a fixed-wing aircraft, and the adaptability of the unmanned aerial vehicle is improved.
Owner:SHANGHAI MARITIME UNIVERSITY

handle (dragonfly)

1. The name of the design product: handle (dragonfly). 2. The use of the design product: pot accessories. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. The rear view is symmetrical with the front view, and the rear view is omitted.
Owner:ZHEJIANG AISHIDA ELECTRIC CO LTD

Electric tricycle (Hibrid Dragonfly 2)

1. The name of the design product: electric tricycle (Hibao dragonfly 2). 2. The use of the design product: for vehicles. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. The bottom view of the design product is not a common view, and the bottom view is omitted.
Owner:SHANDONG BUS NEW ENERGY VEHICLE CO LTD

Ceiling light fitting (swallowtail bracket)

1. Name of the designed product: pendant lamp accessory (dragonfly stand). 2. Use of the designed product: indoor lighting lamp accessory. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.
Owner:朱金钗

Toy (helicopter boomerang dragonfly)

1. The name of the design product: toy (helicopter flying disc dragonfly). 2. The use of the design product: toy for entertainment and play. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.
Owner:SHANTOU DILI CULTURE CO LTD

Bath faucet (YT water dragonfly)

1. The name of the design product: face basin faucet (YT water dragonfly). 2. The use of the design product: for the opening and closing control of water flow. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. The bottom of the design product is not easy to see or not visible during use, omit the top view.
Owner:周建兴

Street light (dragonfly)

1. The name of the design product: street lamp (bamboo dragonfly). 2. The use of the design product: for road lighting and decoration. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.
Owner:JIANGSU SHIXIN ELECTRIC GRP CO LTD

Cup cover (dragonfly)

1. Name of the designed product: cup cover (bamboo dragonfly). 2. Use of the designed product: the designed product is used as a cover for a cup. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.
Owner:张瀛引

Mold pressing mold for dragonfly compound spectacle lens processing

The utility model relates to a mold pressing mold for dragonfly compound spectacle lens processing, and belongs to the technical field of dragonfly compound spectacle lens processing. The mold pressing mold comprises a mold pressing machine, a processing bin is arranged on the mold pressing machine, a pressing mold is arranged in the processing bin, and a mold structure and a control structure are arranged in the processing bin; the mold structure comprises an outer mold core fixedly mounted in the machining bin, and a mounting frame is fixedly mounted in the machining bin. According to the mold pressing mold for dragonfly compound lens processing, by arranging the mold structure and the control structure, an asynchronous motor is used as a driving source, and a threaded rod is controlled to rotate through mechanical transmission, so that two double-barrel connecting pieces are controlled to drive connecting parts to move towards the opposite sides, and then the purpose of controlling two side molds to move towards the opposite sides is achieved; and the mold structure is opened, so that the lens blank between the two side molds can be conveniently taken down, a worker can conveniently demold the lens blank, and the labor intensity of the worker is reduced.
Owner:JIANGSU QIUSHI OPTICAL CO LTD

A dragonfly abdomen imitated vector tilting nozzle and its working method

The application discloses a vector tilting nozzle imitating a dragonfly abdomen and a working method thereof, and belongs to the field of aeroengines. The vector tilting nozzle comprises a driving box driving device (1), a vector tilting nozzle section (2), a variable cross-section nozzle section (3) and the driving device (1). The driving device (1) comprises a plurality of multi-wire driving mechanisms and a single-wire driving mechanism which are uniformly arranged in a circumferential direction and are respectively used for driving the vector tilting nozzle section to deform and the variable cross-section nozzle section to deform. The application has the characteristics of light weight, compact structure, high stealth and high mobility.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

An electromagnetic force direct-drive type dragonfly-like flapping wing aircraft platform and a flight control method thereof

The application discloses an electromagnetic force direct driving type dragonfly imitating flapping wing aircraft platform and a flight control method thereof, and relates to the technical fields of bionic aircraft and electromagnetic driving control. The aircraft platform comprises a body, front and rear flapping wing groups, a wing-body connecting rod, an electromagnetic driving device and a main controller. The electromagnetic driving device is composed of a driving shell, a permanent magnet and a transmission connecting rod. The main controller adjusts the amplitude, direction and frequency of the driving current of the conductive coil, generates electromagnetic force to drive the flapping wing to reciprocally flap, and realizes the controllability of the amplitude, direction and frequency. The method establishes a target speed and equivalent frequency mapping in a manual mode, calculates a frequency error based on the feedback of an inductive device, and adjusts the driving current parameters through a PID closed loop. In a target navigation task, path planning, image acquisition, obstacle detection, straight flight or obstacle avoidance branches and heading correction cycles are executed. The scheme has fast response and compact structure, and can realize stable hovering, sensitive steering and autonomous navigation.
Owner:BEIHANG UNIV

Imitation dragonfly ornithopter with adjustable ornithopter attack angle and flight method thereof

ActiveCN120922382AFlapping wingFlight vehicle
The invention relates to the technical field of flapping wing aircrafts, in particular to a flapping wing attack angle adjustable dragonfly-imitating flapping wing aircraft and a flight method thereof. The flapping wing aircraft comprises an aircraft body, a flapping wing assembly, a universal flapping mechanism and a flapping wing driving mechanism. The aircraft body comprises an aircraft body, and the flapping wing assembly, the universal flapping mechanism and the flapping wing driving mechanism are all mounted on the aircraft body; the flapping wing assembly comprises four flapping wings, the number of the universal flapping mechanisms is four, and the four universal flapping mechanisms are connected with the flapping wings in a one-to-one correspondence mode; the flapping wing driving mechanism is connected with the universal flapping mechanism and drives the flapping wings to do flapping motion; the universal flapping mechanism can independently adjust the attack angle of the corresponding flapping wing. According to the ornithopter, on the premise that the attack angles of the four flapping wings are independently adjusted, the number of driving elements is reduced, the weight and the energy consumption of the whole ornithopter are reduced, and the maneuverability, the reliability and the cruising ability of the ornithopter are improved.
Owner:QINGDAO UNIV OF TECH

Lighter (fire-avoiding snout)

1. The name of the design product: lighter (fire-avoiding dragonfly). 2. The use of the design product: lighter for ignition. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.
Owner:黎清喜

A metasurface beamforming optimization method based on a hybrid genetic binary dragonfly algorithm

The application discloses a metasurface beamforming optimization method based on a hybrid genetic binary dragonfly algorithm (GABDA), and belongs to the technical field of computer and application, which comprises that a metasurface array is composed of 8*8 super subunits, each super subunit is composed of 6*6 units with a phase of 0° or 180°, the phase is a relative value, that is, the phase difference of two units is 180°, and the array adopts the hybrid genetic binary dragonfly algorithm to optimize a set specific waveform, in order to quickly realize a preset waveform, the metasurface units are arranged in a square vertical symmetry, and the hybrid genetic binary dragonfly algorithm is used to optimize the metasurface units. Compared with a traditional algorithm, the application has the advantages of fast convergence, high precision, and difficulty in falling into local optimization, and has a potential application prospect for the development of intelligent metasurfaces.
Owner:NANJING UNIV OF POSTS & TELECOMM

A bamboo dragonfly convenient to assemble

The application relates to the technical field of toys, and particularly discloses a bamboo dragonfly convenient to assemble, which comprises a hand rod and a blade, the blade is detachably connected with the hand rod through a connecting piece, the connecting piece comprises a base and a plug rod, an openable cover plate is arranged on the base, the blade is clamped and fixed between the base and the cover plate, the plug rod is fixed at the center of the base and is in plug-in cooperation with the hand rod, one side of the cover plate is rotationally connected with the edge of the base, the other side is provided with a bolt which is clamped and locked with a plug hole on the base, at least two groups of cover plates are symmetrically arranged on the base to ensure the rotational dynamic balance, a bending part protruding upwards is arranged at the center of the base, and the blade can automatically form a stable lift angle. The bamboo dragonfly does not need additional tools for assembly, the blade can be individually replaced when damaged, the transportation space is greatly reduced after being disassembled, the flight stability is good, and the air time is long.
Owner:龚俊豪

flowerpot (dragonfly)

ActiveCN309817686SDragonflyFlowerpot
1. Name of the designed product: flowerpot (dragonfly). 2. Use of the designed product: for planting plants. 3. Design points of the designed product: combination of shape and pattern. 4. Picture or photo best showing the design points: design 1 perspective view. 5. The bottom of the designed product is the part that is not easy to see or cannot be seen during use, so design 1 plan view and design 2 plan view are omitted. 6. Design 1 is designated as the basic design.
Owner:张家友

Crane anti-collision system based on deep learning

The invention discloses a crane anti-collision system based on deep learning, and the system comprises the following modules: a structured sensing module which is used for collecting multi-modal dynamic data and generating a structured state tensor; the structure self-evolution memory perception network module is used for constructing a dynamic structure diagram and outputting a state structure representation diagram and a danger trend path sequence based on time sequence association between a historical state and a current structured state tensor; the improved dragonfly algorithm intervention optimizer module is used for initializing a search space, generating hook track candidate paths of a plurality of dragonfly individuals, executing track evolution and screening an optimal hook collision avoidance path; the control parameter generation module is used for analyzing the optimal hook collision avoidance path into a group of control intervention parameters; and the feedback updating module is used for collecting action feedback data and realizing closed-loop adaptive optimization. According to the invention, the structure self-evolution memory sensing network and the improved dragonfly algorithm intervention optimizer are combined, so that the crane collision avoidance path is intelligently generated.
Owner:SHENGDE YONGXING (DALIAN) TECH DEV CO LTD

Wallpaper (Bamboo Shadows and Dragonfly Tracks)

1. Name of the product in this design: Wallpaper (Bamboo Shadow and Dragonfly Tracks). 2. Purpose of this design: for interior wall decoration. 3. The key design feature of this product is its pattern. 4. The image or photograph that best illustrates the design's key features: the front view. 5. This design is a thin product, so the left view is omitted; this design is a thin product, so the right view is omitted; this design is a thin product, so the top view is omitted; this design is a thin product, so the bottom view is omitted; the back of this design is a part that is not easily seen or cannot be seen during use, so the rear view is omitted. 6. This design is a planar product with continuous, undefined boundaries on both the left and right sides.
Owner:ZHEJIANG LIANXIANG EMBROIDERY CO LTD

Pendant (Radiant Dragonfly)

1. Name of the product in this design: Pendant (Light-Dragonfly). 2. Purpose of this design: For use as a decorative pendant. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.
Owner:SHANGHAI YUNLI TRADING CO LTD

hook (dragonfly)

1. The name of the designed product: hook (dragonfly). 2. The use of the designed product: for hanging articles. 3. The design points of the designed product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.
Owner:杨艳丽

Dragonfly fan (G25)

1. The name of the design product: dragonfly fan (G25). 2. The use of the design product: for reducing temperature. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: in use state Fig. 3.
Owner:SHENZHEN SINHAO TECH CO LTD

standing board (dragonfly)

1. The name of the design product: standing board (dragonfly). 2. The use of the design product: the design product is used for decorative ornaments. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best shows the design points: perspective view. 5. The bottom surface of the design product is the part that is not easy to see or cannot be seen during use, and the top view is omitted.
Owner:NANJING INST OF MECHATRONIC TECH

Jewelry Set (Dragonfly)

1. Name of the product in this design: Jewelry Set (Dragonfly). 2. Purpose of this design: For decorative wear, belonging to the category of jewelry. 3. The key design features of this product are the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: the main view of Suite 1. 5. The top and bottom views of Suite 1 and Suite 2 have been clearly shown in other views, so they are omitted.
Owner:BEIJING HEYUYUAN PINGNAN CULTURAL & CREATIVE CO LTD

Electric flying saucer toy

The utility model discloses an electric flying saucer toy, relates to the technical field of bamboo dragonfly toys, and aims to solve the problems that according to an existing bamboo dragonfly toy, a force generating rod is manually rotated to drive a bamboo dragonfly to rotate, the bamboo dragonfly flies to the sky once a hand is loosened, a windmill assembly also rotates relative to the force generating rod, so that the playing methods of the bamboo dragonfly are diversified, however, the playing methods of the bamboo dragonfly are inconvenient to use due to the fact that the electric flying saucer toy is manually driven. The utility model discloses a bamboo dragonfly toy which solves the problems that the bamboo dragonfly rising height is limited and the interestingness is insufficient when the bamboo dragonfly is played due to the fact that the applied rotating force is limited due to the fact that the bamboo dragonfly rising height is limited when the bamboo dragonfly is played in the prior art. The outer portion of the rotating handle is fixedly sleeved with a driving gear, the outer portion of the upper end of the rotating handle is movably sleeved with a rotor wing, one side of the rotating handle is provided with a transmission rod, the lower portion of the transmission rod is fixedly connected with a pushing seat, the pushing seat is in sliding connection with the shell, and the upper portion of the transmission rod is fixedly sleeved with a locking gear.
Owner:GUANGDONG CHILDRENS PLAY SCI & EDUCATION TOYS CO LTD

Stage light (dragonfly)

ActiveCN309991853SEngineeringDragonfly
1. Name of the product in this design: Stage Lamp (Dragonfly). 2. Purpose of this design: for use as a stage light. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:GUANGZHOU YUNSHANG OPTOELECTRONICS CO LTD

Bionic dragonfly flapping wing aircraft driven by air source and adjustable in sweeping and flapping amplitude

The invention discloses an air source driven bionic dragonfly flapping wing aircraft with adjustable sweeping and flapping amplitude, which belongs to the technical field of aircrafts and comprises a bottom plate bracket, a transmission mechanism, a sweeping and flapping mechanism, a pair of front flapping wings and a pair of rear flapping wings, the transmission mechanism comprises a front air source driving transmission mechanism and a rear air source driving transmission mechanism which have the same structure and are arranged on the front side and the rear side of the bottom plate bracket, and differential sweeping motion of the front and rear pairs of flapping wings can be realized; the root part of each flapping wing is provided with a sweeping flapping mechanism and a micro transmission which are the same in structure and adjustable in sweeping flapping amplitude; the front air source driving transmission mechanism drives the sweeping flapping support to rotate circumferentially through the air source rotating blade engine, and then the sweeping flapping swing frame drives the flapping wings to move in a sweeping flapping mode. The sweeping and flapping motion amplitude and speed of each flapping wing can be independently controlled, when the aircraft flies, the sweeping and flapping amplitude or sweeping and flapping speed of the front and rear flapping wings on the same side can be controlled to be larger than that of the front and rear flapping wings on the other side, so that turning motion of the aircraft is achieved, and tailless flight control is achieved.
Owner:JILIN COMM POLYTECHNIC

Pendulum (Dragonfly)

1. The name of the design product: ornament (dragonfly sister). 2. The use of the design product: for decorating ornaments. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best shows the design points: perspective drawing.
Owner:JILIN MUWU HOME FURNISHING CO LTD

Brooch (Radiant Dragonfly)

1. Name of the product in this design: Brooch (Light-up Dragonfly). 2. Purpose of this design: For decorative brooches. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.
Owner:SHANGHAI YUNLI TRADING CO LTD