658results about How to "Avoid demand" patented technology

The invention provides a liquid crystal lens grating and a stereo display device thereof. The liquid crystal lens grating comprises a first substrate, a second substrate, a third substrate, a first liquid crystal layer, a second liquid crystal layer, a first electrode, a second electrode, a third electrode and a fourth electrode, wherein the first substrate, the second substrate and the third substrate are overlapped in sequence; the first liquid crystal layer is arranged between the first substrate and the second substrate; the second liquid crystal layer is arranged between the second substrate and the third substrate; the first electrode and the second electrode are arranged between the first substrate and the second substrate, respectively arranged at the two sides of the first liquid crystal layer, and used for providing driving voltage for the first liquid crystal layer; and the third electrode and the fourth electrode are arranged between the second substrate and the third substrate, respectively arranged at the two sides of the second liquid crystal layer, and used for providing driving voltage for the second liquid crystal layer. Based on the technical scheme of the invention, the response speed of liquid crystal molecules can be improved, and full-resolution stereo display can be realized better.

The invention discloses a safety virtualization method of a trusted crypto module; a virtual TCM instance for supporting the usage of a guest virtual machine is realized on the virtual machine based on a VMM model, so as to built a trust chain from a physical machine to the virtual machine; a TCM manager and a virtual TCM permanent memory area are arranged in a privilege virtual domain of the virtual machine; the virtual TCM instance is built and managed by the virtual TCM manager, and the built virtual TCM instance simulates physical TCM for providing the function of the physical TCM for the guest virtual machine; and a information chancel for the communication of the guest virtual machine and the virtual TCM instance is provided by the virtual TCM manager, so as to issue certificate to the virtual TCM instance and support the virtual TCM instance to access the virtual TCM permanent memory area and the physical TCM; the virtual TCM permanent memory area is adopted to store the related information of the virtual TCM instance. The method integrates the characteristics of the virtual machine and the technical advantages of the trustworthy computing, the function of the trusted crypto module is realized by a simulating way, and the problem that specific requirements to TCM of a plurality of the virtual machines can not be met by single physical TCM is solved.

The invention relates to heavy metal resistance plant growth-promoting bacteria and a preparation applying method thereof, which belongs to the bioremediation field of heavy metal polluted environment. A bacteria strain D54 with a preservation number of CGMCC No. 3223 belongs to the Burkholderia sp. and has higher resistance to a plurality of heavy metals, wherein the resistances to Pb <2+>, Cd <2+>, Cu <2+>, Zn <2+> respectively reach 800 mg/L, 1500 mg/L, 150 mg/L and 2500 mg/L. In addition, the bacteria strain D54 has the plant growth-promoting functions of producing plant growth hormone (IAA), producing 1-amino-1-carboxyl cyclopropane (ACC) deaminase, secreting siderophore, dissolving inorganic phosphate, fixing nitrogen and the like, has the biological prevention functions of antagonizing plant pathogenic bacteria inbreak and the like, and can obviously improve the biomass of the plants applied the invention and improve the resistance to diseases and stresses. The number of the effective viable bacteria in liquid preparation reaches 1-2 billion/ml and the number of the effective viable bacteria in solid preparation reaches 1 billion/g. Soaking seeds for 1-2 hours in the liquidpreparation which is diluted 100 times and irrigating the diluted liquid preparation 1-2 times (10ml/kg) after 2-3 weeks of the sprouting of the seeds can effectively improve plant viable bacteria infection probability.

The invention discloses a target detection method in a Codebook dynamic scene based on superpixels. The method is characterized by comprising the following steps that (1) a superpixel partition method is used for partitioning video frames, K superpixels are obtained by partitioning; (2) a Codebook background modeling method is used, a Codebook is established for each superpixel partitioned in the step (1), each Codebook comprises one or more Codewords, each Codeword has the maximin threshold values during learning, the maximin threshold values are detected, background modeling is completed; (3) after background modeling is completed, currently-entering video frames are subjected to target detection, if a certain pixel value of the current frames accords with distribution of the background pixel values, the certain pixel value is marked as the background, otherwise, the certain pixel value is marked as the foreground; finally the current video frames are used for updating the background model. The method solves the problems that a traditional Codebook background modeling algorithm is large in calculated amount and high in memory requirement, and established Codewords are not accurate are solved, target detecting accuracy and speed are improved, the requirement for real-time accuracy is met, and accordingly the requirement for intelligent monitoring in real life is met.

The invention relates to a system for rebuilding spectrum of high spectrum intervention data and a method thereof. Based on the interference imaging mechanism of an HJ-1A high spectrum camera, the system adopts a particular data processing method to rebuild intervention data into spectrum data, which solves the practical engineering problems in processing ground system building data. The system comprises a relative radiation correction unit, an interference data de-noising unit, an apodization processing unit, a spectrum recovering unit and a spectrum checking unit; wherein, the spectrum recovering unit converts an interference data cube into a spectrum image data cube by the symmetrization processing of interference data; the spectrum checking unit carries out wavelength positioning to a real object spectrum image cube by checking the position of the characteristic spectral line of an imaging spectrometer. The technical scheme of the invention fills the blank of data processing of satellite-bone interference imaging spectrometers in China, and satisfies user demand for the data of satellite-bone interference imaging spectrometers.

The invention provides a defect rate detecting method of an oil immersed type main transformer. The defect rate detecting method includes obtaining determinant attributes of the oil immersed type main transformer serving as a sample through detection, establishing a regression model of the determinant attributes and a defect rate of a device, and accurately predicting the defect rate of an oil immersed type main transformer to be detected by means of the regression model and the determinant attributes of the oil immersed type main transformer to be detected. The defect rate reflects the whole defect level of the oil immersed type main transformer of power grids, and various defects in power equipment can be early found and timely eliminated, so that the phenomenon that large-scale loss of power failure of the power grids is caused by the fact that the defects are developed into faults is avoided. According to defect rate differences among different kinds of the devices, maintainers can purposefully perform focused inspection and maintenance to prevent the defects from developing into device faults; production departments can formulate production personnel plans and spare part requirements and predict a future change trend of the defect rate of the devices in combination of development planning of the power grids to guide producing activities of the power grids to well develop.

The invention discloses an AC/DC (Alternating Current/Direct Current) hybrid modularized microgrid network structure based on hybrid energy storage and a networking method of the structure. The AC/DC hybrid modularized microgrid network structure based on hybrid energy storage is characterized in that a back-to-back converter is connected in parallel to a grid-side converter and a microgrid-side converter by use of a DC bus, the AC side of the grid-side converter is connected to a large power grid orderly through a filter circuit and an isolation transformer, and the three-phase AC output end of the microgrid-side converter serves as an AC bus via an LC filter circuit. The AC/DC hybrid modularized microgrid network structure based on hybrid energy storage has the advantages that the modularized packaging of loads of a plurality of types and distributed power sources of a plurality of types in the AC/DC hybrid microgrid is realized and the modularized microgrid initiatively joins in the dispatching operation of the large power grid as an independently controllable power source/load unit, and moreover, due to reasonable design of the hybrid energy storage system structure and the connection manner thereof, seamless switching of two modes of grid connection and island becomes the natural attribute of the modularized microgrid without complex control algorithm.

The invention relates to a sensorless brushless DC motor commutation deviation fast correction control system and a method. An analytical equation between the bus current difference before and after commutation and commutation deviation is derived according to the bus current fluctuation value before and after commutation. In view of the influence of commutation ripple and motor three-phase winding asymmetry on the accuracy of sampled current during actual bus current sampling, a method for current offset sampling in the same conduction zone is designed. The bus current difference is obtained according to the designed current sampling method, the commutation deviation is calculated based on the analytical equation, and the commutation signal is compensated and corrected in real time. By designing the sensorless motor commutation deviation fast correction control system, the commutation deviation convergence time is reduced greatly, and the commutation precision is improved.

The invention discloses a model selection method for a multi-connected air conditioner system. The method comprises the following steps: determining basic unit area load of a room in which each indoor unit is arranged according to the function demand of the air conditioner system and the building attribute information corresponding to the indoor unit; correcting the basic unit area load of each room to obtain unit area load of the room, determining heat load of the room according to the unit area load and area of the room, and selecting a model with the rated power not lower than the heat load of the room for the indoor unit in the room; selecting a model of an outdoor unit according to the total rated power of all the indoor units, wherein the rated power of the selected outdoor unit is not lower than the total rated power of all the indoor units. According to the method, accurate model selection of the indoor units and the outdoor units is realized, and the problem of mismatching between the environmental demand and the capability of the indoor units and the outdoor units is solved, so that the service life of equipment is prolonged and the running cost is reduced. The invention further discloses a model selection device for the multi-connected air conditioner system.

The invention provides a lithium-sulfur battery self-supporting cathode material and an electro-spinning preparation method thereof. Polyacrylonitrile and polymethyl methacrylate serve as precursors of electrostatic spinning yarns, composite nano-fiber membranes are prepared by an electro-spinning method, pre-oxidation and carbonization heat treatment of the electrostatic spinning fiber membranesare implemented to form a self-supporting in-situ nitrogen doped porous carbon nano-fiber structure, self-supporting in-situ nitrogen doped porous carbon nano-fiber membranes are soaked in carbon disulfide solution of sulfur, drying and heat treatment in the argon atmosphere are implemented to obtain the self-supporting lithium-sulfur cathode material. According to the material, the polymethyl methacrylate serves as a template agent, self-supporting in-situ nitrogen doped carbon nano-fibers with porous structures are formed in a heat treatment and pyrolysis manner, the loading capacity of thesulfur is improved, dissolution of polysulfide is restrained, and the nano-fibers can directly serve as electrode materials.

The invention relates to a process for atomizing desulfurization waste water through recycled flue gas of a tower type boiler. The process comprises the steps that the desulfurization waste water of a desulfurization tower is drained to a stilling basin for preliminary sedimentation, and then the desulfurization waste water is pressurized through a pump and conveyed to a pipeline of a nozzle; part of the desulfurized flue gas is sent to the pipeline of the nozzle through a recirculation fan, so that the recirculation flue gas is in contact with the desulfurization waste water in the pipeline of the nozzle, and the initial temperature of the desulfurization waste water is raised; the nozzle is installed in a vertical flue located at the tail of the boiler, the desulfurization waste water is jetted and atomized, atomization liquid drops into the flue and evaporates quickly, and all ions in the desulfurization waste water are separated by crystallization quickly, captured by a dust remover when entering the dust remover along with the flue gas and discharged outward along with dust. By means of the design of the process, atomization performance of the desulfurization waste water is improved, evaporation of the desulfurization waste water is accelerated, blocking of a jet system can be prevented, the desulfurization waste water is effectively prevented from being jet to the pipe wall, the problem of corrosion of the wall surface of a flue which is caused easily when ordinary flues are used for treating desulfurization waste water is avoided, innocent treatment of the desulfurization waste water in the real sense is achieved, reconstruction investment is small, and operation cost is low.

The invention discloses an omnidirectional dual-polarized broadband antenna applied to indoor roofs. The antenna consists of two parts: a vertically radiating pyramid antenna and a horizontally radiating dipole antenna array. A circular sleeve structure is used around the pyramid antenna to enhance the bandwidth, and the top-loaded ring is connected to the ground plane through metal shorting posts of different diameters. The feeding part uses a pyramid to connect with the SMA connector coaxial probe punched through the ground plane. The dipole antenna array arranges four arc-shaped radiation units clockwise on both sides of the dielectric substrate to form a symmetrical dipole antenna array. The circular patch in the center and the tapered microstrip line are baluns to adjust the impedance bandwidth of the dipole. By adding a resonant band around the disk, the bandwidth is widened and the roundness of the omnidirectional radiation pattern is improved. The feed part adopts central coaxial feed. The invention realizes a low-profile omnidirectional dual-polarized antenna, and solves the requirement of an indoor base station for a low-profile omnidirectional dual-polarized antenna.

The disclosure provides a voice control conflict resolution method and device and a voice control system. The method comprises the following steps: receiving voice control commands for the same smarthome equipment coming from at least two voice control terminals; executing a target voice control command transmitted by a voice control terminal which is closest to a sound source; judging whether the voice control command which is received lately is in conflict with the voice control command which is received firstly or not; and if so, not executing the voice control command which is in conflictwith the target voice control command. Through adoption of the voice control conflict resolution method and device and the voice control system, central equipment only executes the target voice control command transmitted by the voice control terminal which is closest to the sound source when the voice control commands for the same smart home equipment coming from the at least two voice control terminals are in conflict with each other, so that the problem that an action executed by the smart home equipment is not in accordance with the actual demands of a user is solved, and the user can usethe smart home equipment more easily and conveniently.

The invention discloses a voice conversion method under the asymmetric corpus condition on the basis of an adaptive algorithm. According to the method, firstly, source speaker and target speaker models are respectively obtained through training from a reference speaker model via utilizing a few of training sentences by a MAP (maximum a posteriori) algorithm; then, Gaussian normalization and average conversion methods are respectively provided through utilizing parameters in an adaptive speaker model; in addition, in order to further improve the conversion effect, a method combining the Gaussian normalization method and the average conversion method is further provided; and meanwhile, because the training sentences are limited, the accuracy of the adaptive model is inevitably influenced, the invention provides a KL (Kullback-Leibler) divergence method, so that a speaker model is optimized during the conversion, and subjective and objective experimental results show that the frequency spectrum distortion degree, the converted voice quality and the target voice similarity are respectively improved. All the methods provided by the invention obtain the effect similar to that of a classical GMM (Gaussian mixture model) method under the condition on the basis of a symmetric corpus.

The invention discloses an injection molding product surface image defect identification method based on transfer learning. The surface defect image of the non-injection molding product is used as a source domain data set; the surface defect image of the injection molding product is used as a target domain data set; carrying out defect category marking on the source domain data set, carrying out domain information marking on all images, establishing a CNN model, inputting the two data sets into the CNN model for training, obtaining a first feature map of a sample through extraction of a plurality of convolutional layers by the CNN model, and outputting a predicted defect classification result through a full connection layer; establishing a migration learning model, constructing a migrationloss function, migrating the source domain data set as knowledge to the CNN model according to the migration loss function, and performing optimization iteration to obtain a target CNN model; and collecting an injection molding product image with surface defects, and inputting the injection molding product image into the target CNN model for testing to obtain a predicted defect classification result. The method is high in identification accuracy, and solves the problem that samples for identifying the surface defects of the injection molding product are lack.

The invention relates to an efficient synchronized biological nitrogen and phosphorus removal combined device integrated with an anaerobic tank, an anoxic tank, an aerobiotic tank, a sedimentation tank and a sewage sludge recirculation process and a method thereof. Adjacent reaction tanks in the device share a same wall; a first anoxic tank, the anaerobic tank and a second anoxic tank are sequentially arranged from the front to the back; the right side of the first anoxic tank, the anaerobic tank and the second anoxic tank is provided with a corridor-type distribution channel, which supplies water respectively to the first anoxic tank, the anaerobic tank and the second anoxic tank through the water inlet pipes; a tank sludge tank, the sedimentation tank and a buffer zone are sequentially arranged from the front to the back and at the left side of the first anoxic tank, the anaerobic tank and the second anoxic tank; an outlet channel is arranged at the left side of the sedimentation tank; and the aerobiotic tank is arranged behind the buffer zone and the second anoxic tank. Through clever layout and reasonable design, the invention combines the biochemical tank and a secondary sedimentation tank to form an integrated process, so as to greatly reduce the construction cost and the occupied area.