55 results about "Biomimetics" patented technology

The invention discloses a visual prosthesis image acquisition device which comprises an eye movement acquiring and processing module, a camera and a rotating cradle head. The eye movement acquiring and processing module is used for acquiring an eye movement signal of an eyeball and sending a control signal according to the signal to control the rotation of the rotating cradle head so as to ensure the camera fixed on the rotating cradle head to turn to the rotation direction of the eyeball and acquire an image in the direction, wherein the eye movement acquiring and processing module comprises an eye movement camera for shooting a video of movement of a pupil of the eyeball and an eye movement video receiving and processing unit for receiving the video and acquiring the rotation direction of the eyeball by the video. According to the invention, by acquiring the rotation direction of the eyeball in real time so as to control the rotating cradle head to drive the camera to turn to the direct and acquire the image in the direction, the biomimetics on human vision and eye movement functions is well implemented, so that a user acquires the prosthesis visual experience closer to the normal vision.

A self-organizing operating conditioned response automata and an application in the realization of intelligent behaviors thereof belong to the biomimetics field. The self-organizing operating conditioned response automata relates to a discrete computer model for describing a self-organizing automaton, comprising operation set, state set, 'condition-operation' rule set, observable state transition and operating conditioned response law of learning; furthermore the behavior entropy based on AOC state orientation value is defined and the recursive operation program of AOC is set. The key character of the AOC is to stimulate the operating condition reflex mechanism of organism so that the AOC has the self-organizing function of bionics, comprising the self-learning and self-adaption functions which can be used for describing, stimulating and designing various self-organizing systems, in particular to being used for describing, stimulating and designing various intelligent behaviors for robot systems.

The present invention provides a method for controlling plant diseases and pests by utilizing biomimetics principle. It is characterized by that a glue with viscosity can be sprayed on the plant surface, so that the harmful living beings can be adhered on the glue so as to attain the goal of controlling plant diseases and pests. The described atomizer is a kind of electrostatic sprayer optimally, and in the described glue with viscosity the various additive components of trace insect sexual pheromone and fluorescent matter also can be added so as to further raise the effect for controlling plant diseases and pests.

The invention discloses a high-strength high-tenacity graphene-enhanced copper-based composite material and a biomimetic preparation method for a nacreous layer thereof. The biomimetic preparation method for the nacreous layer comprises the steps that firstly, solute atom super-saturated copper-chromium alloy powder is prepared through atomizing powdering; then nanometer chromium phase is precipitated through aging treatment; then ball milling is conducted and sheet-shaped powder is acquired; then an electrochemical de-alloying method is utilized, the copper element in the sheet-shaped powderis dissolved selectively, and chromium-phase protrusions are constructed in the surface of the powder; then through a slurry method, polyvinyl alcohol (PVA) is adsorbed to the surface of the sheet-shaped powder, and PVA-modified copper-chromium sheet-shaped powder is formed; and orderly piling up of powder is formed through free falling in alcohol, then a block body material is prepared through spark plasma sintering (SPS) and densification, a thermo-mechanical treatment manner is adopted so that nanophase chromium in the surface of the sheet-shaped powder is in contact mutually and diffused and bridged into a nacreous layer mineral bridge biomimetic structure, and the graphene/ copper-chromium based composite material is acquired. According to the biomimetic preparation method for the nacreous layer, through biomimetics of a "brick-mud-bridge" structure of the nacreous layer, the strength and tenacity of the copper-based composite material are improved, and in addition, good conductive property and tribological property are acquired.

The invention relates to a broad-spectrum wide angle absorption solar cell moth-eye antireflection structure based on a monocrystalline silica substrate and a preparation method thereof, which is characterized by having the aid of the bionics principle, taking a moth-eye micro-nano structure as an antireflection layer and improving optical energy capture; the micro-nano structure is formed by taking dense monolayer silicon or a silicide particle network formed by a drawing-film (LM) method as a reticle mask; forming the micro-nano structure by adopting the dry etching process to etch monocrystalline silicon, thus preventing the defect of insufficient etching depth limit of a wet etching method; adjusting the size and density of reticle mask particles to regulate the optical refraction coefficient gradient of the adjusting moth-eye micro-nano structure so as to realize wide-angle absorption of wide incident light with 0-60 degrees; adopting the method for adjusting the size (20-800 NM), depth and periodicity of the micro-nano structure to realize optical energy absorption of infrared, visible and ultraviolet (250-2.5 NM) broadband section, thereby increasing cell efficiency.

The invention provides a novel torpedo anchor based on bionics and a construction method thereof. The novel torpedo anchor is composed of an anchor body, an anchor rod, anchor wings, an anchor tip anda spiral extension mechanism. The anchor wings or the anchor body is additionally provided with negative poisson ratio materials, and the uplift bearing capacity of the torpedo anchor is improved byutilizing the characteristics of tension expansion and compression shrinkage of the negative poisson ratio materials; based on the sharkskin bionic principle, the surface structure of the anchor bodyis optimally designed, the water flow resistance in the installation and penetration process is reduced, and the frictional resistance between the anchor body and a seabed soil body is increased in the pull-up working state; the bionic principle of razor clam digging is used for reference, after initial penetration is completed, a working anchor chain is tensioned to be in linkage with the spiralextension mechanism, so that the anchor rod on the inside penetrates downwards, secondary penetration into the soil body is achieved, and the uplift bearing capacity and stability of the anchor body are improved.

The present invention is in the fields of nanotechology and biomimetics. In particular, the present invention relates to the use of modified ribosomes to produce biomimetic structures. These biomimetic structures, also known as directed element polymers, are not produced by traditional industrial means but instead are produced by living systems comprising modified ribosomes.

The invention discloses a traffic noise prevention and treatment sound barrier structure based on a bionics principle. The traffic noise prevention and treatment sound barrier structure comprises a sound insulation layer I, a damping layer and a sound insulation layer II, the sound insulation layer I is sequentially divided into an arc-shaped edge area, a hole-shaped sound absorption area and a silencing shutter area from top to bottom; the arc-shaped edge area and the hole-shaped sound absorption area are connected to form an arc-shaped plate-shaped structure which is bent towards the direction far away from the sound insulation layer II, and the silencing shutter area is of a flat plate-shaped structure; the edge, away from the hole-shaped sound absorption area, of the arc-shaped edge area is in a streamline wavy shape. A plurality of blind hole structures with different sizes are formed in the porous sound absorption area; louver structures are installed on the sides, away from thesound insulation layer II, of the silencing louver areas, and louvers, close to the hole-shaped sound absorption areas, of the louver structures are distributed in a wavy mode. The traffic noise prevention and control sound barrier structure based on the bionics principle is reasonable in structural design, simple in overall structure, low in cost and outstanding in noise reduction effect and hasgreat application prospects.

The invention provides a novel biomimetic cartilage material having biological activity and a preparation method thereof. The biomimetic cartilage material is a composite material which is prepared with a biomaterial with bone induced activity and polyvinyl alcohol as raw materials and through combination of an ultrasound method and a sol-gel method. From the perspectives of material biomimetics and functional biomimetics, the improved sol-gel method (namely ultrasonic-sol-gel method) is adopted for compositing of polyvinyl alcohol and an inorganic material, a biomimetic artificial cartilage having biological induced activity is prepared, mainly manifests in relatively good integration of the material and bones and has no obvious rejection, the inorganic material has good dispersion, no agglomeration phenomenon exists, the particle size distribution is controllable, and a crystal form structure is relatively ideal.

The invention discloses a novel dynamic torpedo anchor based on bionics and an installation method thereof, and belongs to the technical field of deep sea anchoring. The novel dynamic torpedo anchor comprises a rotary anchor tip, an anchor rod, anchor wings and a simple water ramjet engine part; According to the novel dynamic torpedo anchor based on bionics and the installation method thereof, thesimple water ramjet engine is started while the traditional torpedo free falling body movement installation is combined, so that the higher initial penetration speed is obtained, and the penetrationdepth of the torpedo anchor is increased; negative poisson ratio materials are additionally arranged on the anchor rod and the anchor wings, and the characteristics that the negative poisson ratio materials contract under pressure and expand under tension are utilized, so that the penetration resistance is reduced, and the uplift bearing capacity is improved. The novel dynamic torpedo anchor has the advantages of being high in initial penetration speed, deep in installation penetration and high in uplift bearing capacity.

The invention relates to a small-sized fermentation system and fermentation method capable of simulating a colon environment and a fermentation method thereof, and belongs to the technical field of microbiology, human body physiology and bionics. The small-sized fermentation system capable of simulating the colon environment comprises a material supplementation bottle, a fermentation main body anda sample collection device; the material supplementation bottle is provided with a gas inlet; the fermentation main body comprises three fermentation branch port test tubes; the fermentation branch port test tubes are all provided with gas collection ports; and the sample collection device comprises three sample collectors. The fermentation method capable of simulating the colon environment usesthree fermentation branch port test tubes to respectively simulate ascending colon, transverse colon and descending colon and carry out a fermentation reaction, and a time period is 7d. The small-sized fermentation system has the following beneficial effects that the entire system implements simple simulation of colon fermentation, and has excellent stability, practicality and repeatability. Modules are simple, cost is low, the adopted device is simple; a plurality of small-sized fermentation systems can be simultaneously set up to carry out pre-experiment on different samples; parallelism ishigh; and after fermentation is ended, collected gas samples and liquid samples can be used for subsequent detection.

The invention discloses a static pressure type rear support screw pile based on bionics, which comprises a pile tip, an outer sleeve, a flange and an empennage, the empennage is arranged at the upperend of the outer sleeve, the flange is arranged at the top ends of the empennage and the outer sleeve, an outer support blade is arranged at the lower part of the outer sleeve, and when the outer support blade is pressed at the top of the outer sleeve, the outer supporting blades are unfolded outwards. A built-in steel pipe or a flexible anchor rod is arranged in the outer sleeve, and the pile tipis fixedly connected with the built-in steel pipe or the flexible anchor rod. By optimally designing the pile body, the side resistance is small during static pressure pile sinking penetration, the outer supporting blades are unfolded through secondary sinking of the outer sleeve, the vertical uplift and compression resistance bearing capacity of the outer supporting blades is improved, the horizontal bearing capacity of the outer supporting blades is improved through the arrangement of the empennage, and the uplift bearing capacity of the pile side and the blades is improved by utilizing thecharacteristics of compression shrinkage and tension expansion of negative poisson ratio materials. The method has the advantages of small soil disturbance, low construction noise and environmental friendliness.

The invention discloses a natural scene target contour extraction method and system based on bionics, and belongs to the technical field of computer vision. The accuracy and robustness of target contour extraction in a natural scene are improved. The method comprises the steps of obtaining a Gaussian gradient and a gradient amplitude of an image; based on the gradient amplitude of the image, obtaining an outer area suppression amount of the image; generating a contour response based on the gradient amplitude of the image and the outer region suppression amount; respectively carrying out binarization processing on the contour responses under different suppression levels to obtain a preliminary binary edge graph; calculating the prior contour probability of the edge contour in the preliminary binary edge graph based on the edge significance and colinearity of the visual preference; based on the prior contour probability, adopting a Bayesian probability framework to calculate the posterior contour probability that the edge point belongs to the contour edge; and based on the posterior contour probability, outputting the contour of the image under a given threshold.

The invention discloses a cross-flow fan blade based on bionics. The blade is formed by arranging a plurality of blade units in the axial direction of an impeller, the front edges of the blade units protrude, the rear edges of the blade units are concave inwards, the middle portions of the sides, close to the front edges, of the upper surfaces of the blade units are higher than the two sides, themiddle portions of the sides, close to the rear edges, of the upper surfaces of the blade units are lower than the two sides, and the middle portions of the sides, close to the front edges, of the upper surfaces of the blade units are higher than the middle portions of the sides, close to the rear edges, of the upper surfaces of the blade units. By the adoption of the cross-flow fan blade based onbionics, airflow flowing of the front edge and rear edge of the blade can be improved, an eccentric vortex moves downwards, the efficiency of a cross-flow fan is improved, and energy consumption is reduced.

The invention belongs to the technical field of combat uniform, and particularly relates to a bionic pattern combat uniform with concealment, which is based on a color geography principle, analyzes camouflage patterns of animals such as boa, adopts colors suitable for combat in the East Asia environment, fully applies a bionics design theory, analyzes the camouflage patterns of the animals such as boa and the like, the safe and fashionable effects are finally achieved through oblique segmentation, breaking of a complete personnel profile and introduction of an asymmetric design form, the original shape is most effectively broken through the oblique segmentation, the appearance contour of a wearer is successfully hidden, the oblique segmentation is not easily found by an observer visually, precious enemy making time can be strived for in combat, and the requirements of hidden combat activities are met; based on East Asian color geography, pattern design and style design are explored, reasonable visual rules and guiding methods are utilized to achieve the effects of camouflage and mark hiding, waterproof and breathable functional fabric is applied, and functionality and serviceability are improved.