513results about How to "Simple - technical solution" patented technology

The invention discloses an optical fiber distributed disturbance sensor which comprises an optical fiber laser, a bidirectional distributed Raman amplification unit and a photoelectric detection and signal processing unit, wherein an output end of the optical fiber laser is connected with a first coupler; two output ends of the first coupler are respectively connected with an acoustic optical modulator and a third coupler; the bidirectional distributed Raman amplification unit is connected with the acoustic optical modulator by a first circulator and is connected with the third coupler by the first circulator; the photoelectric detection and signal processing unit is connected with the third coupler and used for receiving an interference-enhanced optical signal in the third coupler, converting the optical signal into an electric signal and carrying out subsequent data processing. In the optical fiber distributed disturbance sensor, the back scattering light intensity and the signal-to-noise ratio of the tail end of the optical fiber can be improved by the bidirectional distributed Raman amplification structure so as to improve the sensing distance of the optical fiber distributed disturbance sensor; and the light power received by a detector can be improved through the interference of a part of continuous light output by a light source and the back scattering light, so as to improve the signal-to-noise ratio of the system. The sensor is a combination of conventional photoelectric devices, has a simple structure and is easy to realize.

The invention discloses a full-automatic three-dimensional scene construction method based on a single image. The full-automatic three-dimensional scene construction method based on the single image comprises the following steps: on the basis of a machine learning method, utilizing a training image set to train to obtain a classifier which can roughly classify and label an input image; dividing the input image into three subareas, i.e. a vertical area, ground and sky, by utilizing the classifier to obtain a rough classifying and labeling result of image areas; on the basis of a "trustable" area in the rough classifying and labeling result, correcting the rough classifying and labeling result by utilizing a GrabCut image segmentation algorithm, and obtaining a precise boundary between image geometry areas; and on the basis of obtaining the precise classifying and labeling results of the image geometry areas and the precise boundary between the image geometry areas, carrying out modeling with a realistic three-dimensional scene by utilizing a computer graphics method. The method disclosed by the invention realizes the three-dimensional scene construction based on the single image.

The invention discloses a method for multifunctional sorting of a textile by using a graphene oxide derivative, belonging to the technical field of textile chemistry. The method comprises the following steps: immersing the textile with a graphene oxide derivative water solution; drying the textile and carrying out reduction so that the surface of the textile is covered with one layer of a reduced graphene oxide derivative; and repeating the steps to obtain the multifunctional textile with good conductive, anti-ultraviolet and water-repelling functions. By virtue of the method, the textile can obtain a lot of functions by one type of sorting and the multifunctional sorting of common textiles including cotton, wool, silk, dacron, chinlon and the like, and blended textiles or intertextures thereof can be realized; and the textile can be used for the fields including medical treatment, intelligent sensors, mobile power generation, military affairs and the like.

The invention relates to adhesive resin with antiseptic function for steel pipe, which is prepared by HDPE, LLDPE, LDPE, PP, maleic anhydride, initiator, EVA, tackifier, antioxidant, color filler, and structural modifying agent with double-screws extruder. The product has high joint strength, and friend environment.

The invention provides a navigation satellite low-orbit monitoring constellation optimization design method. An existing technology foundation and a future technology development trend are fully considered, navigation satellite low-orbit monitoring constellation design requirements and constraint conditions are analyzed, a Walker-[delta] constellation and a sun synchronous regression orbit are selected, and an elevation criterion containing a monitoring station cover factor, a performance factor and a constellation orbit parameter is built at the same time, so a navigation satellite low-orbit monitoring constellation going through the optimization design has good monitoring performance. The optimization design of the navigation satellite low-orbit monitoring constellation can be effectively achieved according to the navigation satellite low-orbit monitoring constellation optimization design method brought forward in the invention, the technical scheme is scientific and optimal, and the navigation satellite low-orbit monitoring constellation optimization design method has high implementability; and the designed constellation can use the less total number of satellites to achieve a large monitoring station cover factor and a large performance factor.

The invention relates to a heavy metal polluted crystallization encapsulated stabilizing agent and its application method, which is characterized in that the stabilizing agent comprises the following components by mass ratio: 15-25% of phosphate or sulfate, 1%-5% of heavy metal chelating agent, 20-40% of cementitious material, 30-60% of clay minerals, and the components for the sum is 100%. Compared with the prior art, the invention has the advantages of simple technical scheme, good effect, low cost and easy operation of implementation method, the leached toxicity of heavy metal in soil can reach the national standards after implementing the scheme, and the processed soil enables resource recycling. According to the invention, a pre-determination and pretreatment mode is used to reach the excellent stable effect on a plurality of heavy metal pollution.

The invention provides a preparing method of a multielement nanometer composite strengthening thermal-resisting aluminum matrix composite. The surface of nanocarbon is coated with a metal ion precursor in advance, the nanocarbon is evenly scattered in aluminum powder, the precursor is converted into oxide through thermal treatment, reactive sintering and densifying treatment are carried out on the obtained composite powder, and the multielement nanometer strengthening aluminum matrix composite is obtained. The nanocarbon has the high specific surface area, the feature size of the nanocarbon is far larger than that of the nanometer oxide, and therefore a proper amount of nanometer oxide can be loaded and evenly led into the aluminum powder, metallic oxide, carbide, an intermetallic compound and other multielement nanometer strengthening phases are generated through the in-situ reaction, and the tissue stability and the thermal resistance of the aluminum matrix composite are improved coordinately. The method achieves the purposes of even leading of high-volume-content multielement nanometer strengthening phases and the space occupation control, and the conventional powder metallurgy technology can be adopted for preparing the multielement nanometer composite strengthening thermal-resisting aluminum matrix composite.

The invention discloses a wireless charging method and system of an electric vehicle. The charging method comprises the following steps that firstly, preparatory work is conducted, wherein a wireless transmitting device is arranged on the ground of a parking area, electric vehicle guide rails are arranged on the two sides of the parking area and are each provided with a set of pressure sensor arrays, and a wireless receiving device is arranged on the bottom of the electric vehicle in a lifting mode through a lifting device; secondly, charging position alignment of the electric vehicle is conducted through the pressure sensor arrays; thirdly, the electric vehicle executes charging operation, wherein the wireless receiving device drives the lifting device to descend the wireless receiving device towards the wireless transmitting device to enable the wireless receiving device to get close to the wireless transmitting device, and energy transmission maximization is achieved.

The invention relates to an information providing method and system based on television terminal users and voices. The information providing system comprises a television terminal and a server-side. The television terminal collects user information and vocal prints in advance and then enables the user information and the vocal prints to be in correlation; the television terminal collects user vocal prints and determines the users using the television terminal by contrasting the collected user vocal prints with the user vocal prints which are collected in advance; the server-side organizes information to be provided according to classification of the users, and provides corresponding information to the television terminal according to the determined users using the television terminal. According to the information providing method and system based on the users and the voices on the television terminal, the user vocal prints are collected for determining the users, and then the information is provided for the television terminal when the users watch television according to the feature information of the users. The technical scheme of the information providing method and system is simple, convenient and easy to implement; the information is provided for the users by means of intelligent analysis of user information according to identities, occupations, hobbies and the liker of the users; the different users in a family are determined in combination with the user vocal prints, and then the information is provided for the television terminal according to the different users in the family.

A kind of automobile tire pressure monitoring system and tire identification method consist of a transmitting & detecting unit, with one set on each tire, as well as a receiving & displaying unit including a receiving unit, a main control unit and a displaying unit. A plug-in encoding memory is plugged into the receiving & displaying unit. One fixed ID code, which is the same as that for the above encoding memory, is available for each transmitting & detecting unit. When the power is on, the receiving & displaying unit reads the ID code in each plug-in encoding memory plugged into the socket of the displaying unit, and saves the information on the corresponding relationships between ID codes saved in memories and the tire identity. After receiving the signal from the transmission unit, it reads the ID codes in it, and judges whether these codes are identical with those in memories. If the signal is valid, the receiving & displaying unit compares the corresponding relationships, judges on which tire the detection unit is transmitting the signal, and displays the information about pressure and temperature on corresponding areas.

Disclosed are a method and a device for suppressing signal fading in laser communication from ground to a GEO (geosynchronous) satellite. The method includes: measuring intensity fluctuation waveform of downlink beacon light emitted from the GEO satellite by a single-mode fiber on a ground station, and transmitting uplink laser beam along a direction opposite to the downlink beacon light via the same single-mode fiber, and then emitting the uplink laser beam from an end face of the single-mode fiber; modulating to-be-transmitted uplink data waveform according to the reciprocal of the intensity fluctuation waveform of the downlink beacon light measured by the single-mode fiber, driving a laser to emit uplink laser, and transmitting the uplink laser beam to the GEO satellite. Accordingly, atmospheric turbulence and signal fading caused by alignment error of a ground transmitter can be eliminated automatically, and power of laser received by the satellite is stable. In addition, average transmission power of the uplink laser beam can be reduced on the condition of the rated fading probability.

The invention discloses an unmanned plane data relay device based on a mobile data network and a method thereof. The unmanned plane data relay device comprises an airborne radio, multiple mobile base stations, a data relay server, and a ground station computer for sending an instruction, wherein each mobile base station comprises a base station radio for receiving the data sent by the airborne radio and sending a control instruction from the ground station computer, a mobile wireless data network card, a base station computer, and a data acquiring unit installed in a base station computer; the base station and the airborne radio are in wireless communication; the base station computer is respectively connected with the mobile wireless data network card and the base station radio; the data acquiring unit is used for connecting the base station computer to the internet through the mobile data wireless network card; the data relay server is connected with the mobile base station, and comprises a relay program module; the relay program module is in wireless connection with the mobile wireless data network card; a client program module is installed in the ground station computer; and the ground station computer is connected with the data relay server.

The invention relates to a patient ventilation or breathing device and components therefore for use in all forms of respiratory apparatus ventilation systems including invasive and non-invasive ventilation, positive airway pressure therapy, Continuous Positive Airway Pressure (CPAP), and particularly Bi-Level therapy and treatment for sleep disordered breathing (SDB) conditions such as Obstructive Sleep Apnea (OSA), and for various other respiratory disorders and diseases. The invention particularly relates to a blower, to a blade, to a gasket, to a cable, to an impeller, to a gas inlet and inlet member, to an improved air path or fluid flow path and components thereof, and/or to a modular ventilation or breathing device as referred to above and particularly incorporating one or more of the other aspects of the invention.

As for a multilayer coating system in use or a multilayer coating system sample for carrying out a natural environment test, the invention provides a method for rapidly evaluating a coating critical corrosion damage value on the basis of macroscopic appearance features and electrochemical features according to the characteristic that the corrosion damage degree of a first coating of the multilayer coating system directly affects the protecting performance of the coating system. According to the method, the macroscopic appearance features of the multilayer coating system are detected visually, the electrochemical impedance spectroscopy of a portion which has an aging failure or is seriously damaged is measured, a multilayer coating system physical model and an electrochemical impedance spectroscopy CM equivalent circuit model are established according to the preparation mode of the multilayer coating system and the characteristic that the thickness is large, the capacitance and the resistance of each coating of the multilayer coating system are obtained by carrying out analysis through an electrochemical feature analysis system, and the critical corrosion damage value of the multilayer coating system is rapidly evaluated according to the impedance value of the first coating. The method is simple, data are reliable, and an evaluating result is accurate and practical.

The invention discloses a humidifying and fresh air exchange indoor unit of an air conditioner. The humidifying and fresh air exchange indoor unit comprises a cross-flow impeller air outlet duct and a cross-flow impeller air outlet duct wall. The humidifying and fresh air exchange indoor unit is characterized in that an air induction opening is formed in the cross-flow impeller air outlet duct wall; the clockwise included angle between the projection line, in a projection plane which is perpendicular to the axis of a cross-flow impeller of the indoor unit and makes an air outlet of the indoor unit be located on the lower left side, of the air induction opening and an air outlet duct wall tangent positive direction section making the point intersecting with the air outlet duct wall as an upper tangent point is larger than or equal to 15 degrees and smaller than or equal to 180 degrees; a water discharge pipe of the indoor unit is connected with an air induction pipe, and the other port of the air induction pipe is connected with the air induction opening formed in the cross-flow impeller air outlet duct wall in a penetrating mode. The humidifying and fresh air exchange indoor unit has the advantages that outdoor air is introduced, humidified and exchanged; the refrigerating capacity is recycled, so that energy is saved; the air outlet temperature and the air volume of the indoor unit are increased.

The invention provides a linear array CCD (Charge Coupled Device) image scanning method. The image scanning method comprises the following steps: step 1, achieving motion planning and scanning path planning for both the scanning direction and the non-scanning direction of a linear array CCD imaging system; and step 2, encoding scanning and control commands of the linear array CCD imaging system. By adopting the technical scheme provided by the invention, the phenomena that an image is subject to stretching, compression, fuzziness and other distortion and deformation due to acceleration and deceleration of a motor when a tested object starts to move and finishes movement are well avoided.

The invention belongs to the technical field of information hiding, and aims to provide a high-capacity encrypted domain information hiding method capable of separating a carrier image decryption process from a secret data extraction process. According to the specific technical scheme, the high-capacity image encryption domain information hiding method is composed of the following four parts: 1, calculation of a prediction difference value and generation of a label map; 2, encrypting a carrier image; 3, storing a prediction difference value and embedding secret information; 4, reversible recovery of the carrier image and lossless extraction of secret information; the whole technical scheme is simple and easy to implement, information such as user copyright, identity authentication or content retrieval can be hidden in the encrypted image according to different requirements of a user for image protection, and management of copyright protection, security authentication, retrieval, classification and the like of the image is achieved.

The invention discloses a method for reducing the content of polyethylene wax during ethylene oligomerization reaction. The method comprises the steps as follows: adding a polyethylene wax inhibitor, a promoter and a primary catalyst into oligomerization reactor containing reaction medium, controlling the reaction temperature to be proper, introducing a vinyl monomer to reaction pressure, and performing oligomerization reaction. The polyethylene wax inhibitor is selected from one or more of ether, ketone, inner ester, a heterocyclic compound, an organic phosphine compound, a monocarboxylate or polycarboxylic compound and a silicon compound containing at least one Si-OR bond, wherein R adopts a hydroxy group. The method can effectively inhibit the generation of polyethylene wax, and meanwhile, obviously improve the yield of liquid phase alpha-olefin, thereby greatly reducing the content of the polyethylene wax during ethylene oligomerization reaction, and the method is beneficial to the safe and reliable operation of devices, so as to obtain high economic benefits.

The invention belongs to the field of recycling treatment of electronic wastes, particularly relates to a waste lithium battery resource recycling method and application of a product, and aims to provide an environment-friendly waste lithium battery resource recycling method. The waste lithium battery resource recycling method comprises the steps: crushing a discharged waste lithium battery; mixing the crushed waste lithium battery with water, stirring to enable lithium cobaltate and carbon powder to fall off, enable metal slag to sink down and enable plastic to float up, and separating to obtain suspension, the metal slag and the plastic; filtering the suspension to obtain a mixture of lithium cobaltate and the carbon powder; washing the metal slag and the plastic by water until lithium cobaltate and the carbon powder are washed out, separating to obtain washing liquor, and filtering the washing liquor to obtain the mixture of lithium cobaltate and the carbon powder. The waste lithium battery resource recycling method is simple; a high-temperature or strong-acid environment is not needed; the method is environment-friendly; furthermore, the recycling rate of lithium cobaltate and the recycling rate of the carbon powder are up to 90 percent.

The invention provides a non-contact measuring method of indirect stretching strain and relates to a measuring method of stretching strain. The invention solves the problems that the prior measuring method of indirect stretching strain has low accuracy, small measuring range, limited measuring area, etc. In invention, the end surface of the measured component is artificially variegated and the image information of the artificial variegated end surface is recorded by a CCD camera in the loaded process of the measured component, and then the interrelated digital variegation method is adopted to analyze the image information, therefore, the strain information of the artificial variegated end surface of the measured component can be acquired. The invention adopts the developed interrelated digital variegation method of the prior art as the basis and combines the interrelated digital variegation method with the indirect stretching test, therefore, a novel measuring method of indirect stretching strain can be formed; the invention can be applied in the occasion with the requirement of measuring indirect stretching strain.

The invention discloses self-repair reaction type polymer cement waterproof coating and a method for preparing the same. The self-repair reaction type polymer cement waterproof coating comprises double components including liquid and powder, and particularly comprises, by weight, 35-50% of polymer liquid, 15-30% of cement, 10-30% of powdery fillers and 5-15% of micro-capsule materials on the basis of the total weight of 100%. According to the technical scheme, the self-repair reaction type polymer cement waterproof coating and the method have the advantages that water absorption materials with swelling properties wrap materials with quick curing and gelating properties by the aid of micro-capsule technologies, the materials with the quick curing and gelating properties can be uniformly dispersed in the self-repair reaction type polymer cement waterproof coating, capsules inside the self-repair reaction type polymer cement waterproof coating can be exposed from fracture when the self-repair reaction type polymer cement waterproof coating is broken by base layers by means of drawing, the water absorption wall materials of the self-repair reaction type polymer cement waterproof coating can be softened, swollen and broken after absorbing water, internal repair materials can flow out and can be quickly cured and gelated when in contact with the water, accordingly, crack can be blocked, self-repair effects can be conveniently, easily, timely and automatically realized without influence on the quality of polymers in the self-repair reaction type polymer cement waterproof coating and the performance of the self-repair reaction type polymer cement waterproof coating, and the self-repair reaction type polymer cement waterproof coating and the method are applicable to polyurethane, acrylic acid and epoxy polymers.