60results about How to "Wide range of needs" patented technology

The invention discloses a wave length demodulating system based on an F-P etalon and reference gratings. According to optical path connection, a broadband light source passes through an isolator and is connected with a tunable F-P filter, light out of the tunable F-P filter enters a coupler and is evenly divided into two paths, and one path enters the F-P etalon, and then enters a first photoelectric detector; the other path is output to a first reference fiber bragg grating, a second reference fiber bragg grating and a sensing fiber bragg grating through an optical circulator, the first reference fiber bragg grating, the second reference fiber bragg grating and the sensing fiber bragg grating are connected in series, reflected light of the fiber bragg gratings passes through the optical circulator and enters a second photoelectric detector, and finally two paths of data are synchronously sampled through a PC. According to a wave length demodulating method based on the F-P etalon and the reference gratings, the tunable F-P filter is controlled by the PC; synchronous data collection is carried out on spectrums of two channels; peak searching calculation is carried out on data collected from the two channels; the sensing optical grating is obtained through calculation. The wave length of the sensing optical grating can be demodulated fast and accurately through the F-P etalon and the reference gratings.

The invention discloses a medicinal composition for treating diabetes, which comprises bromocriptine and metformin hydrochloride. In the medicinal composition for treating diabetes, the dose of a main medicine is small; and compared with other compound preparations of metformin hydrochloride, the side effect is reduced greatly, patients can taken the medicinal composition for a long time, and the obedience in the patients is high. In addition, the medicinal composition also has the advantage that the medicine price is lower than other metformin hydrochloride compound preparation treatment medicines.

The invention discloses a solar selective absorbing film series suitable for medium-high temperature heat usage and a preparation method of the solar selective absorbing film series suitable for the medium-high temperature heat usage. The solar selective absorbing film series comprises infrared high-reflective silver film plated on a metal base bottom, copper film, titanium aluminum nitrogen oxygen film, zinc tin antimony oxide film and silica film from top to bottom in sequence. Solar energy absorbance of the absorbing film series is larger than 96 percent, emittance is smaller than 2 percent, and the absorbing film series has the advantages of being super-low in emittance and high in photothermal conversion efficiency. Film plating rate of the zinc tin antimony oxide materials in the film series is high, and improvement of producing efficiency is benefited. The absorbing film series can be widely used in heat collectors of solar energy photothermal conversion, suitable for application of solar heat usage in construction integrated products, and especially suitable for wide application of medium-high temperature solar energy heat usage products. The solar selective absorbing film series suitable for medium-high temperature heat usage can be continuously plated on a base bottom with a large area through an industrialized magnetic control sputtering preparing method, and low-cost large-scale high-efficient producing is achieved.

The invention discloses an automatic detection method for cracks of a concrete member. The automatic detection method comprises the following steps: S1, obtaining a plurality of pieces of crack images of the concrete member; S2, carrying out recognition processing on the crack images by adopting a mathematic morphologic method through top-hat transform according to linearization and dark target characteristics of the cracks, so as to obtain new crack images containing crack information and non-crack information; S3, rapidly positioning and matching positions of the cracks in the processed crack images by adopting a stratification matching method based on an image Gaussian pyramid; synthesizing the processed adjacent crack images according to the positions of the cracks in sequence to obtain adjacent crack image synthetic images, and synthesizing until a crack distribution map of the concrete member, which contains all the crack information, is obtained; and S4, automatically generating a crack detection report of the concrete member according to physical parameters of the cracks in the crack distribution map. According to the automatic detection method disclosed by the invention, the detection efficiency and the detection speed are improved, and manual risks and detection errors are reduced; and crack appearance characteristics on the surface of the concrete member can be rapidly and completely displayed again.

The invention relates to the technical field of natural plant extraction processing, and concretely relates to a high-quality oligomeric proanthocyanidins and a preparation method thereof. The high-quality oligomeric proanthocyanidins can be obtained by the steps of extraction, concentration, purification, re-concentration, water dissolution, depolymerization, and spray drying. The raw materials and auxiliary materials selected by the method are natural materials, the method employs physical synthesis and biological fermentation methods, the oligomeric proanthocyanidins can be completely usedfor food processing and is safe and quality-assured, the operation is simple, the prepared oligomeric proanthocyanidins has strong anti-oxidizability.

The invention provides a volume expansion type efficient slug gel plugging agent and a preparation method thereof. The volume expansion type efficient slug gel plugging agent is prepared from the following raw materials in parts by mass: 10-35 parts of a polymerization reaction agent, 1-3 parts of a cross-linking agent a, 0.02-0.5 part of a suitable-temperature initiator, 0.5-5 parts of a water-soluble resin flexibilizer, 0.5-5 parts of a composite inorganic flexibilizer, 2-8 parts of modified starch, 2-10 parts of a volume expansion reaction agent and 2-8 parts of a rheological modifier, wherein the volume expansion reaction agent is prepared from the following raw materials through an inverse emulsion polymerization method: a water-soluble polymeric monomer, a dispersion medium, an emulsifier, an oil-phase initiator and a cross-linking agent b. The plugging agent disclosed by the invention has the advantages of capability of underground crosslinking gel forming, flexible and adjustable gel forming time, high pressure bearing capacity after gel forming, relatively high water absorption expansibility, excellent mechanical strength after water absorption and the like.

The invention discloses a voice spoofing attack detection method based on voice signal spectrum characteristics and deep learning. After a microphone of the electronic equipment receives a voice signal, signal processing work is carried out on voice, then specific features are extracted, finally, the marked features are input into a classifier of a deep convolutional neural network SE-ResNet to betrained, and the trained classifier is adopted to carry out voice living body detection on the voice signal to be detected. and a result of whether the voice is sent by the human voice or the voice attack is replayed is output. According to the invention, the voice spoofing attack represented by the replay attack for the speaker recognition system can be accurately and effectively detected.

The invention discloses a water-saving valve core of a faucet valve water economizer; the water-saving valve core can be used for linearly adjusting and cutting off, is most water-saving when being used for saving water and is largest in flow than any valve when being used for taking water. The water-saving valve core of the faucet valve water economizer is formed by a movable upper shunting piece and a movable lower shunting piece; the shunting pieces can be sleeved with and connected with selectable accessories in a matching mode; the selectable accessories can be a throttling sprayer or normal energy-saving members or special parts such as a bubbler. The water-saving valve core is simple in structure, scientific, reasonable, easy to manufacture, convenient to mount and use and multifunctional, and can be connected with multiple faucet valves and accessories in the matching mode. The water-saving valve core can be matched with a shell to mark, adjust, lock and control the flow and prevents improper water using, the preset functions and water outlet mode of the water-saving valve core can be limited to prevent a user from randomly changing the functions and purposes of the faucet valve, the water waste phenomenon is reduced, water is greatly saved, and the water-saving valve core is multifunctional and good in adaptivity and can be in a house and fields such as industry, agriculture and public occasions.

The invention relates to a while-drilling advanced forecasting apparent resistivity measuring system and method. The while-drilling advanced forecasting apparent resistivity measuring system comprises a magnetic-dipole antenna installed in a drilling rig, a plurality of receiving electrodes distributed in surrounding rocks around a drill hole and an on-site main machine connected with the multiple receiving electrodes. The magnetic-dipole antenna is used for automatically outputting pulse electromagnetic waves in real time in the process of advancing in the drill hole along with the drilling rig and forming induced electromagnetic fields in the different-depth surrounding rocks around the drill hole; the receiving electrodes are used for real-time receiving of electric signals generated in the different-depth surrounding rocks around the drill hole by the induced electromagnetic fields; and the main machine is used for processing the electric signals received by the multiple receiving electrodes and obtaining the apparent resistivity of the different-depth surrounding rocks around the drill hole. According to the while-drilling advanced forecasting apparent resistivity measuring system and method, detection precision of geophysical exploration can be improved, the control range of advanced hole exploration can be increased as well, detection efficiency of advanced hole exploration can be improved, and the quantity of the arranged drill holes is reduced.

The invention relates to the technical field of natural plant extraction and processing and specifically relates to a preparation method of oligomeric proanthocyanidins. The preparation method comprises extraction, concentration, purification, re-concentration, water dissolving, aggregation reducing and spray drying to obtain the oligomeric proanthocyanidins. Since the selected raw materials are natural materials, the preparation method provided by the invention can be used for processing food and cosmetics; the selected extraction solvent and dilution solvent are alcohol; moreover, the operation is easy, and the prepared oligomeric proanthocyanidins has quite strong resistance to oxidation.

The invention relates to a resourceful treatment process of industrial high-concentration brine. The resourceful treatment process mainly comprises potassium sulfate solid preparation, sodium chloriderecovery and a water recovery technology. Firstly, sodium sulfate in the wastewater is converted into sodium chloride through an ion exchange resin device, then the sodium chloride is concentrated through a reverse osmosis membrane, permeate liquid can be reused in a production line, and trapped liquid is sodium chloride concentrated liquid and can be directly reused as desalted water; then the ion exchange resin is regenerated by using a potassium chloride solution, regenerated effluent is a high-concentration potassium sulfate solution and contains a small amount of potassium chloride, theregenerated effluent can be directly subjected to evaporative crystallization to obtain a potassium sulfate solid, and potassium chloride in crystallization mother liquor can be recycled as regenerated liquid. Compared with the prior art, the treatment process has the advantages that high-recovery-value potassium sulfate solids rather than sodium sulfate solids can be obtained while water and sodium chloride are recycled, resource recovery is achieved to the maximum extent in the whole process, and the treatment process is a sodium sulfate wastewater resource utilization technology with highereconomic benefits.

An unmanned aircraft comprises an aircraft body, fixed wings fixed to the two sides of the aircraft body and multiple rotors connected to the two sides of each fixed wing through rotor supporting parts. Rotor shafts of the unmanned aircraft do not need to rotate relative to the wings, so that complex mechanical components for controlling and adjusting rotation of the rotor shafts do not need to be configured, and compared with an existing tilting rotor aircraft, the aircraft is simpler in structure and smaller in weight. Meanwhile, a set of power devices, namely the rotors and motors corresponding to the rotors are adopted in the unmanned aircraft to achieve the functions of vertical take-off and landing and fixed wing modal cruising, and compared with an existing aircraft, the unmanned aircraft can supply larger weight and meet the requirements for the task load and the voyage endurance.

The invention provides a high-pressure rapid dust remover for a road, relates to the field of road dust removal of atmospheric haze management and particularly relates to the high-pressure rapid dust remover for the road. The high-pressure rapid dust remover comprises a dust collection chamber, wherein the dust collection chamber is internally provided with a high-pressure air blowing device and a low-pressure air dust collection pipeline; the low-pressure air dust collection pipeline penetrates through the dust collection chamber to be connected with a garbage separation device; the rear side of the garbage separation device is connected with a dust removing device; the high-pressure air blowing device is connected with a high-pressure air source; and a plurality of air blowing holes are formed in one face, facing a working opening, of the high-pressure air blowing device. The high-pressure rapid dust remover for the road is simple in structure, easy to produce and low in cost and can be carried on various types of road sweepers or road building machines; and dust on the road is blown off by utilizing the high-pressure air blowing device and the blown dust and garbage are conveyed to the garbage separation device by adopting the low-pressure air dust collection pipeline and then enter the dust removing device to be subjected to dust removal through low-pressure air of the garbage separation device, so that the road dust removing aim is realized, secondary dust-raised pollution is avoided and the dust removing effect is better.

The invention discloses a steelmaking process for large-scale customized production, and belongs to the technical field of metallurgical production. The steelmaking process comprises the following steps: desulfurizing molten iron through a molten iron pretreatment device, and transferringthe molten iron into a primary melting furnace to complete desiliconizing, dephosphorizing and decarbonizing; transferring the molten iron into an intermediate furnace to store in a thermal-insulation manner and homogenize the components according to the almost consistent components and temperature; and transferring the molten iron into a refining furnace to regulate components according to customized quantity demanded, and then introducing the molten iron into a continuous casting machine. According to the steelmaking process, the intermediate furnace is arranged as buffer, so that the influences of any converter accident on the casting machine can be isolated, and multi-steel-ladle continuous taping and continuous casting is not affected by the converter production rhythm. When the steelmaking process is applied to steelmaking production, large-scale customized production can be realized, the small-amount order delivery period can be shortened, wider customer requirements can be met, and the production scheduling function is flexible.

The invention discloses a sewage treatment agent for treating blue algae pollution as well as a preparation method and application thereof. The sewage treatment agent for treating the blue algae pollution is prepared from the following raw materials in parts by weight: 16 to 26 parts of chromium picolinate, 12 to 23 parts of berberine, 4 to 9 parts of cineole, 2 to 8 parts of L-carnitine tartrate,5 to 12 parts of white tea extract, 4 to 8 parts of clove powder, and 1 to 5 parts of amber powder. A little amount of the sewage treatment agent of the invention can achieve an apparent treatment effect, the purifying speed is high, the treatment efficiency is high, the sewage treatment agent is demanded both at home and abroad, and the market prospect is promising.

The invention provides an annular wire stripper. The annular wire stripper comprises a holding assembly, a middle installing piece, a stripper tooth assembly, an annular cutting and longitudinal cutting assembly, a knife head travel control assembly, a stripper tooth brake assembly, four main pin shafts and a returning assembly. The holding assembly comprises four handles installed from top to bottom, the middle installing piece is installed between the two handles in the middle, and the stripper tooth assembly is installed in a center through hole through the four main pin shafts. The annular cutting and longitudinal cutting assembly comprises a knife body and a knife head, the knife head and most portions of the knife body are installed in the center through hole, and the knife head can rotate under the action of external force. The knife head travel control assembly is used for controlling the travel of the knife head. The stripper tooth brake assembly is used for clamping a cable to be stripped. The returning assembly is used for returning after stripping. The annular wire stripper has the annular cutting and longitudinal cutting functions, can effectively meet requirements for stripping the cable with an insulating layer and a protection layer, is convenient and fast to use, efficient and good in effect, substantially improves labor efficiency of electricians and reduces labor intensity of the electricians.

The invention discloses a chuck head of a hand-throwing toy and a chuck dart using same. The chuck is made of soft foaming composite material which has the following components: 35-45% of polyvinyl acetate, 10-20% of ethylene vinyl acetate, 10-20% of nitrile rubber, 5-15% of polyethylene and 15-25% of calcium carbonate; the invention also discloses a chuck dart using the chuck which provides more forceful guarantee for safety of children when playing; the dart can still stick to the chuck even if the surface thereof is relatively coarse; as a result, playing site and space for chuck-like toys is substantially expanded; the chuck can automatically comes off after sticking to the dart for a while, reducing dissatisfaction of parents; even if the dart is thrown at a very small angel, the chuck can still stick to the target dart, further increasing amusement.

The invention belongs to the technical field of sound pickup, and discloses a long-distance sound source positioning method and system based on a microphone array. The method comprises the following steps: 1, acquiring multiple paths of noisy signals, and preprocessing the multiple paths of noisy signals to obtain multiple paths of to-be-detected sound signals; 2, judging the current frame of anyone of the multiple paths of to-be-detected sound signals, if the signal-to-noise ratio of the current frame meets a first threshold value and the energy of the current frame meets a second thresholdvalue, obtaining the current frames of all the paths of to-be-detected sound signals, and executing the step 3; otherwise, returning to execute the step 2; 3, classifying the previous frames of all paths of to-be-detected sound signals to obtain the current frames of multiple paths of target sound source signals; 4, performing cross-correlation calculation on the multiple paths of target sound source signals to obtain a plurality of cross-power spectrums; and 5, obtaining the maximum value of the peak value in the cross-power spectrum, and performing angle backstepping according to the time delay corresponding to the maximum value of the peak value to obtain the direction information of the target sound source signal.

The invention relates to an underwater image processing system of a remote operated vehicle. The underwater image processing system comprises an image acquisition module, an FPGA module and a displaymodule; the image acquisition module comprises an LED light group and a camera module; the image acquisition module and the display module are both connected with the FPGA module; and underwater images are acquired by the image acquisition module, processed by the FPGA module and displayed by the display module. According to the underwater image processing system of the remote operated vehicle, the defects that an underwater image system is long in time delay, serious in underwater image color cast, capable of generating backward flashing of the underwater images, poor in underwater image contrast, low in brightness, large is size and high in energy consumption are overcome.

A robot veterinarian for the breeding industry comprises a walking mechanism, a hoisting guide rail, a multi-path data collector, a data forwarding device, a battery management unit and a monitor. A robot body is installed at the bottom of the walking mechanism which walks on the hoisting guide rail. The multi-path data collector, the data forwarding device, the battery management unit and the monitor are installed on the robot body. The battery management unit provides power for the walking mechanism, the multi-path data collector, the data forwarding device and the monitor. The battery management unit, a stepping motor driver and the multi-path data collector are in connection communication with a measure and control instrument. The measure and control instrument is connected with a robot veterinarian on-site intelligent monitoring system information platform through WiFi in the monitor. The intelligent comprehensive monitoring of site environment and animal growth and disease state of a livestock farm can be achieved, the management and disease prevention and treatment level of the breeding industry are remarkably improved through the timely service of an internet of things, a cloud storage and an expert system, and the comprehensive economic benefits are increased.

The invention provides a compound fabric capable of changing color, and belongs to the technical field of textile. The compound fabric capable of changing color comprises base cloth; an outer lining is arranged at the upper end of the base cloth, and comprises a color-changing layer and a transparent layer; the color-changing layer is directly arranged at the upper end of the base cloth; the transparent layer is arranged at the upper end of the color-changing layer; a lining is arranged at the lower end of the base cloth; the base cloth is interwoven from warps I and wefts I; the warps I and the wefts I are connected into a whole by adopting an up-down concave-convex weaving way; and the color-changing layer is made from a transparent fiber through spinning and knitting. The compound fabric provided by the invention can change color along with temperature and light intensity, and has both a relatively good visual impact and a fairly strong breathable effect.

The invention discloses a colorful surface material distributing device and method, a surface material machine and a forming machine of colorful-surface-material tiles. Surface materials of needed colors are sequentially fed into main material cavities and auxiliary material cavities of a hopper correspondingly. A fence door capable of being opened and closed is arranged on one side of the hopper. The fence door is closed during feeding; after feeding, the fence door is opened and closed repeatedly so that a part of the surface materials on the upper side of the hopper are made to fall into a material cavity of a surface material trolley; and then, a hopper door located at the bottom of the hopper is slowly opened through an air cylinder, and the rest of the surface materials in the hopper is made to fall into a hopper of the surface material trolley. By the adoption of the colorful surface material distributing device and method, the surface material machine and the forming machine of the colorful-surface-material tiles, when the surface material trolley distributes the materials in a mold, the colors of the surface materials are mixed in a limited manner, and then colorful concrete floor tiles of changeable and unpredictable colors are manufactured.

The invention provides a method for setting up a network billing all-in-one machine based on an open platform. The method provided by the invention comprises the following specific steps of: setting up a hardware platform; setting a hardware main board, and a printer, a display, a keyboard, a network card chip, a safety encryption chip and a peripheral interface connected with the hardware main board; and setting a software system, and developing an application program, wherein an application software framework and an application development interface are configured in the network billing all-in-one machine; the software framework is a Linux operation system; the application program is installed in the network billing all-in-one machine through the application development interface; and therefore, the overall application requirements of the clients to the network billing all-in-one machine are satisfied. Compared with the prior art, the method for setting up the network billing all-in-one machine based on the open platform provided by the invention integrates functional modules required by the network billing all-in-one machine and comprises driving and application development platforms; therefore, the technical threshold and the difficulty of developing the network billing all-in-one machine are reduced; the development efficiency is improved; and the product development time is effectively shortened.

The present invention relates to the technical field of natural plant extraction and processing, specifically a method for preparing high-quality oligomeric proanthocyanidins, including extraction, concentration, purification, re-concentration, water solubility, depolymerization, and spray drying to obtain high-quality oligomeric proanthocyanidins; the present invention The raw materials and auxiliary materials used in the invention are all natural materials or physical synthesis and biological fermentation methods. The obtained oligomeric proanthocyanidins can be completely used in food processing, safe, secure, and easy to operate. The prepared oligomeric proanthocyanidins have strong antioxidant properties sex.

The invention discloses an automatic storing and taking device for clothes dry cleaning and an application method of the device, and relates to an automatic storing and taking device and an application method. The device comprises a shell, a clothes storage mechanism, a clothes taking mechanism, a clothes placing mechanism, a rotary storing and taking mechanism, a counter top and a central control mechanism, wherein the clothes storage mechanism, the clothes taking mechanism and the counter top are arranged on the shell; the clothes placing mechanism is fixedly connected with the rotary storing and taking mechanism, and the clothes storage mechanism, the clothes taking mechanism and the rotary storing and taking mechanism are connected with the central control mechanism separately. The method comprises the steps that a user places clothes needing to be washed in a clothes storage bin, and a mobile phone number is input to generate a corresponding order; after the clothes are washed in a laundry, a payment instruction is sent to a mobile phone of the user, the user pays through an online payment platform and receives a starting password after payment is completed, the user obtains the clothes through the starting password, and then one time of clothes cleaning can be completed. By means of the device, the handover work between the user and the laundry is facilitated, the time warp problem is effectively compensated for, and market prospects are wide.

The invention discloses a voice spoofing attack detection method based on a sound field and a field pattern. The method comprises the following steps: collecting voice through double microphones, extracting to obtain double-track voice signals, respectively processing the double-track voice signals, and extracting field lines; collecting and processing to obtain field patterns of a plurality of voices of the same person, obtaining field pattern distribution of the person, and training by using a Gaussian mixture model; repeating the above steps on the to-be-detected voice of the unknown sounder to calculate the field pattern of the to-be-detected voice, processing the to-be-detected voice by using the trained Gaussian mixture model to obtain a similarity probability, and judging and detecting whether the to-be-detected voice is a voice spoofing attack or not according to the similarity probability. According to the invention, the spoofing attack for the voice authentication system canbe accurately and effectively detected.

The invention provides a rectangular window variable two-dimensional OS-CFAR detection device and method using center point sorting, and the method comprises the steps: S1, setting a detection window on the basis of a two-dimensional distance Doppler power matrix, and obtaining a column vector in the detection window; s2, performing edge filling on the edge data; s3, generating an ascending order center point sequence by using the current center to-be-detected unit data and the adjacent center to-be-detected unit data detected for multiple times; s4, performing dichotomy insertion comparison on the column vector and the ordered center point sequence to generate a column binary accumulation partial sum of the current column; s5, obtaining the binary accumulation sum of the current window, and judging whether a target exists in a corresponding point of the detection window in the two-dimensional distance Doppler power matrix; and S6, obtaining all detection results of the two-dimensional distance Doppler power matrix, and solving the radial speed and distance of the target. According to the invention, the dynamic configuration of the detection window can be realized, the detection of RDM matrixes of various sizes can be realized, and the method can adapt to wide application scenes and requirements.

An unmanned aircraft, comprising: an aircraft main body; a fixed wing and a plurality of rotors, the fixed wing is fixed on both sides of the aircraft main body, and the plurality of rotors are respectively fixed on both sides of the fixed wing through a rotor support; an airborne sensor system , which is used to collect the navigation data of the aircraft; the flight control system, which is connected with the onboard sensor system, is used to adjust the state of the fixed wing and / or multiple rotors according to the navigation data, thereby adjusting the navigation state of the aircraft. The rotor shaft of the unmanned aircraft does not need to rotate relative to the wings, so there is no need to configure complex mechanical parts that control and adjust the rotation of the rotor shaft. Compared with the existing tilt-rotor aircraft, the aircraft has a simpler structure and lighter weight , the aircraft uses a set of power devices to meet the functions of vertical take-off and landing and fixed-wing modal cruise. Compared with existing aircraft, it can provide greater weight to meet the requirements of mission load and voyage endurance.

The invention discloses a single-stand-column automatic stereoscopic warehouse stacker. The stacker is important hoisting stacking equipment in an automatic stereoscopic warehouse. A lifting mechanismof the single-stand-column automatic stereoscopic warehouse stacker designed by the invention adopts a mode that a motor pulls a steel wire rope, so that vertical lifting motion of the stacker is achieved; a horizontal walking mechanism adopts a mode that a chain wheel drives driving steel wheels, so that horizontal motion of the stacker is achieved; and a cargo storing and taking mechanism adopts that mode that a pallet fork conducts horizontal transmission, so that storing and transferring of cargoes in the stereoscopic warehouse are achieved. The stacker designed by the invention is simplein structure and low in manufacturing cost and has wide application prospects.