386 results about "Technology research" patented technology

The invention discloses an information center network mobility management method based on content popularity and belongs to the technical field of next-generation internet technology research. The method includes the steps that, a requester side moves, specifically, the content requester sends an Interest package request, a router in a network receives the Interest message, the local cache is searched first, the Interest message is directly returned to the requester if the content exists in the local cache, and otherwise a PIT table is searched; a proxy node compares the popularity of the content with a popularity threshold value K; a content source moves to a new position and sends a 'handoff completion' message to the proxy node, wherein it is indicated that handoff is completed if an M marking position is '2', and a K marking position is 'NULL'. According to the method, the mobility of mobile nodes in the content center network is achieved, and the mobility management method based on the proxy node and the web cache avoids communication outage caused by single-fault nodes and link failure; once the proxy node fails and can not serve any more, the network can automatically carry out handoff in a web cache mode, and therefore it is guaranteed that communications are conducted normally.

The invention discloses a system and a method of diagnosing GIS (Gas Insulated Switchgear) mechanical defects based on independent component analysis denoising. An acceleration sensor is fixed at the position of a measurement point on the surface of the GIS shell, and the acceleration sensor, a charge amplifier, a data acquisition unit and a data processing device are serially connected in sequence; after the data processing device carries out denoising on measured vibration signals, a spectrum for vibration signals at each measurement point is obtained finally; and through analyzing the signal component of each frequency range of the spectrum, the GIS mechanical fault type is determined. The system and the method of the invention have the beneficial effects that the GIS diagnosis technology research based on abnormal vibration analysis provides an important and feasible detection means for discovering GIS mechanical defects or hidden fault, and an important role is played in ensuring reliable operation of the GIS.

The invention discloses a method for detecting stress and strain of a road surface, belonging to the field of structure performance research of bituminous road surface. In the method, a bituminous layer strain sensor, a soil pressure case, a temperature sensor and a shaft sensor are embedded at the proper position of the road to be tested; and the data collected by a high-speed data collecting system is analyzed and processed to obtain the stress and strain of the road surface. The data measured by the method can reflect the actual situation of the road surface and has favorable values for promotion and application. The invention can be widely applied to the stress state, change rule and detection technology research inside the road surface under the action of traffic load and the coupling action of environmental variation.

The invention discloses a high resolution micro-vision system based on calculating ghost imaging and a method of obtaining images. The system successively comprises, on a light path, a laser source, a first diaphragm, a laser beam expanding lens, a collimating lens, a second diaphragm, a polarizer, a spatial light modulator, a polarization analyzer, a third diaphragm, a reflector, a beam splitter mirror, a convergent lens and a CCD camera, and also comprises a precision positioning objective table located on another light path of the beam splitter mirror and connected with a computer; the computer is also separately in connection with the spatial light modulator and the CCD camera, and obtains high resolution images through the calculating ghost imaging technology. The high resolution micro-vision system has a simple and compact structure, and employs light field intensity correlation measurement to recover object information, thereby eliminating the problem of classic optical system imaging distortion, and can obtain high accuracy and contrast images. The high resolution micro-vision system is very helpful for micro-vision system design and ghost imaging technology research.

The invention discloses a system and a method of diagnosing GIS (Gas Insulated Switchgear) mechanical defects based on abnormal vibration analysis. An acceleration sensor is fixed at the position of a measurement point on the surface of the GIS shell, and the acceleration sensor, a charge amplifier, a data acquisition unit and a data processing device are serially connected in sequence; after the data processing device carries out wavelet denoising on measured vibration signals, a spectrum for vibration signals at each measurement point is obtained finally; and through analyzing the signal component of each frequency range of the spectrum, the GIS mechanical fault type is determined. The system and the method of the invention have the beneficial effects that the GIS diagnosis technology research based on abnormal vibration analysis provides an important and feasible detection means for discovering GIS mechanical defects or hidden fault, and an important role is played in ensuring reliable operation of the GIS.

The invention discloses a false target elimination method of distributed MIMO radar detection, belongs to the radar technology field and relates to distributed MIMO radar multi-target detection technology research. In the invention, the false target elimination method based on grid space search is adopted. The method is characterized by firstly, carrying out grid division on a space detection area, and through the grid space search, determining a multichannel detection unit and measurement; carrying out over-threshold judgment on all the grids in a detection plane and then detecting the detection plane; and then using the false target elimination method to carry out multiple iteration, successively eliminating influences of real targets on generated false targets, and finally acquiring a number of the real targets and general positions. Problems that because the false targets are generated, the real targets are submerged during an actual application; and detection correctness is reduced are effectively solved, and a MIMO radar is used to carry out correct detection on multiple targets.

The invention belongs to the field of multi-axis numerically-controlled machine tool comprehensive error compensation key technology research, and aims at solving the problem that in the prior art, a multi-axis numerically-controlled machine tool of which the machining precision is greatly reduced after being used for a long time is lack of a universal error compensation method.The invention provides a three-stage optimized numerically-controlled machine tool motion error offline compensation method, wherein three stages of optimization comprise a segmented refinement stage, a segmented optimization stage and a deep optimization stage.The method particularly comprises the following steps that on the basis of an existing NC program, a starting point position and a terminating point position of motion of a feed shaft or a main shaft are read in corresponding program lines, and segmented refinement is conducted on the track; all key point positions on the track are calculated, corresponding errors are obtained by applying a numerically-controlled machine tool position and posture prediction model, and primary optimization is conducted on the key point positions; iterative computation, taking a preset precision value as a constraint condition, is conducted on optimized point positions to achieve deep optimization.The method has good universality on multi-axis linkage numerically-controlled machine tools of different control systems.

The invention discloses an adaptive optical correcting device and method based on a sodium layer structured beacon, belonging to the adaptive optical technology research field, and is used for detecting and correcting wavefront distortion caused by atmospheric turbulence. The adaptive optical correcting device comprises a structured sodium laser beam array generating device, a ground telescope system, a wavefront distortion extraction device, and a wavefront distortion correcting device. The correcting device and method do not exist focusing anisoplanatism effects, do not require a separate aperture mode with a hartmann sensor as a representative to detect a wavefront, receive backward diffusion photons in a full aperture mode, thereby have low requirements for backward diffusion photon density, and are especially suitable for a large field of view. The invention provides a brand new wavefront distortion extraction method for the large aperture foundation telescope adaptive optical technology.

The invention relates to a network security experiment platform construction method based on Docker. A platform is divided into three parts, wherein the three parts are respectively responsible for experiments, functions of node virtualization, experimental data processing and the like are realized. An experimenter uploads experiment related content through an ASG module. The platform stores the experiment content, the mirror image, the topological structure and experimenter information, experiment environment deployment is carried out through the VG module by using the Docker technology, andexperiment data are continuously collected through the DAG module. The method has higher performance and efficiency, and large-scale network simulation and quick construction of a large-scale networkare realized. Therefore, the function of customizing the network topology structure is realized, the memory, the system version and the like of the machine can be customized, and the experiment is more real. Meanwhile, the auxiliary function is perfected, the attack and defense assessment technology researched in the past is fused into a network security experiment platform, and a visual technology is combined, so that an experiment result is more visual and easier to understand.

A purpose of the present invention is to provide goose oil diacylglycerol microcapsules, which comprise a core material and a wall material, and is characterized in that the core material is goose oil diacylglycerol, and the wall material is a beta-cyclodextrin and sodium caseinate mixture. According to the present invention, the core material and the wall material are respectively subjected to an ultrasonic treatment, such that the wall material is easily dissolved in water, and the core material is easily dissolved in an emulsified liquid so as to substantially increase an emulsified liquid concentration, reduce a freeze-drying time, and improve a microcapsule encapsulation rate and production efficiency; and a freeze drying method is adopted so as to effectively prevent goose oil diacylglycerol loss during the preparation process, avoid the disadvantage of high temperature of the existing method, filling the goose oil diacylglycerol encapsulation technology research gap, provide a new method for new goose oil product research and development, and provide important social values and economic values.

The invention discloses a falling information processing method and device. The method includes the step that the type classes of multiple mobile terminals are obtained by obtaining the number of times of falling of the mobile terminals within preset time, and the falling frequency of each type is obtained according to the number of times of falling and the type classes. By means of the falling information processing method and device, the falling frequency of each type within the preset time can be obtained by a server, and powerful data support is provided for technology research and development of a terminal manufacturer, which is beneficial for researching the cause of the falling event and the anti-falling strategy by technical staff.

The invention relates to an aroma-enhancing brewing process for grape wines and fruit wines. By utilizing the aroma-enhancing brewing process, the blank of technology research in the field of fruit-flavoured type fruit wines of China is made up, the product quality of fruit-flavoured type grape wines and specific fruit wines of the southern is improved, and the organoleptic features of the colour, aroma and taste of products are harmonized simultaneously, so that production for high-quality fruit-flavoured type grape wine and fruit wine products in many high-quality fruit production areas of the southern of China becomes possible. The technical scheme adopted by the aroma-enhancing brewing process disclosed by the invention comprises the following operation steps of: (1) controlling the maturity of raw materials; (2) picking and sorting; (3) removing stalks, crushing and pulping; (4) filling in a tank, and adding sulphur dioxide; (5) adding pectinase, and standing at a low temperature; (6) naturally heating, and adding a yeast to start fermentation; (7) monitoring alcoholic fermentation; (8) separating, squeezing, and continuing fermentation; (9) transferring to another tank, adding sulphur dioxide, and storing; (10) adding an aroma fixative during a storage period; and (11) clarifying, stabilizing, filtering and bottling.

The invention discloses a pond capable of generating current. The pond is partitioned into an upper layer and a lower layer by a clapboard respectively; a current return channel is formed on the lower layer along the length direction of the pond; an application area is formed on the upper layer; both sides of the pond are provided with diversion covers communicated with the upper layer and the lower layer; water wheels driven by motors are arranged in the diversion covers; each water wheel comprises a roller body and a plurality of blade units; the roller bodies are arranged along the width direction of the pond and pass through the entire pond; the blade units are distributed on the circumferential surfaces of the roller bodies. Preferably, the inner walls, which are parallel with the blade units, of the diversion covers are in clearance fit with blades of the blade units; the shaft centers of the roller bodies and the clapboard are in the same horizontal plane. The power consumption of the pond is low; a high-speed propeller for propelling water current is not needed, and the noise cannot be felt by human ears; uniform and stable water current can be generated along the depth direction and width direction of the water pond, and the flow speed is adjustable. The pond can be applied to various types of equipment needing current generating for testing, and is particularly beneficial to the improvement of the accuracy of swimming technology research as well as the safety and comfort of rehabilitation.

A testing method for simulating the mechanical behaviors of surrounding underground pipelines in the construction of a shield tunnel belongs to the field of construction protection of tunnel engineering and subway engineering, and aims to solve the problem that displacement of surrounding soil is caused by stratum loss in the construction process of a shield tunnel in a soft soil area, which can change the mechanical behaviors of surrounding underground pipelines or even causes disasters such as pipeline deformation and explosion. The testing method comprises the following steps: similar designing of a shield tunnel, underground pipelines and a stratum system; simulation of a shield tunnel construction process accompanied with stratum loss by virtue of a device for simulating shield tunnel construction accompanied with stratum loss; laying of underground pipeline measuring elements, and data acquisition and analysis; and model laying and mounting. By the testing method provided by the invention, model tests can be performed under various construction conditions, which is of great significance in further understanding the disaster mechanism of the underground pipelines and building a simplified calculation method for the mechanical behaviors of the underground pipelines. The testing method has wide application prospects in the fields of engineering technology research and tunnel engineering construction protection.

The invention discloses a method for spraying silicone rubber paint layer on an engine shell. The method comprises the steps of: researching robot spraying parameters in combination with parameters of paint; establishing a relevant technical theoretical model when a robot finishes spraying a coating layer on the outer surface of a solid rocket engine, putting forward a calculation method of key technical parameters, and providing a method for calculation of forming technological parameters of different types and different coatings. The method can be used for shaping work of various types of engine paint layer robots with the diameter greater than 200 mm; if the technical theoretical model is adopted by a novel paint material in the solid rocket engine surface spraying technology research work, optimal spraying speeds Vs and Vm are determined only through combined adjustment of spraying parameters of the robot and the paint material, so that robot spraying technological parameters in the whole spraying process can be determined. The method for spraying silicone rubber paint layer on an engine shell provides a research technical theoretical model and a research method for a surface thickness required coating shaping technology of the robot solid rocket engine, speeds up the research progress, improves research efficiency and reduces research expense.

The invention provides a document retrieval and analysis system, comprising a basic retrieval module, an expansion retrieval module, a multi-data source integrated retrieval module, a retrieval result processing module, a semantic database development module, a data mining and natural language processing module, a patent information intelligent analysis result visualization technology research module, and a user management module. The document retrieval and analysis system is based on data collection and processing, performs statistic and association analysis on patent data in terms of a plurality of patent description items like year, applicant, inventor, key words and so on, displays analysis results by combination with a visualization technology, and further discovers the relation of patents and information of patent inventors. Compared with the prior art, the document retrieval and analysis system has the advantages of being capable of retrieving patent information intelligently, performing statistic and association analysis on the patent data on the base of intelligent retrieval, and carrying out visual display of the analysis results by combination with the visualization technology.

A vehicle-mounted catapulting-type unmanned aerial vehicle special for adolescent national defense science and technology research comprises a vehicle body, left intermediate wheels, left rear wheels, left front wheels, a cab, a hydraulic main body frame, a catapulting frame, a shooting and sending-back device, a voice control device, an aerial vehicle body, an empennage with a parachute, a launching device, a control room, an aerial vehicle head, an unmanned aerial vehicle antenna, a combined type propeller with a motor, right rear wheels, right intermediate wheels and right front wheels. The launching device of the unmanned aerial vehicle is carried on the vehicle body, so that the launching device of the unmanned aerial vehicle has the characteristics of being good in concealment, high in universality, convenient to maintain, good in battlefield adaptability, flexible and high in reliability and can be suitable for launching small and medium-sized unmanned aerial vehicles with the requirements for different takeoff weights and takeoff speeds. According to the novel vehicle-mounted catapulting-type unmanned aerial vehicle, the overall technical level of existing unmanned aerial vehicles is raised, and the application prospect of the unmanned aerial vehicles is widened; and meanwhile the vehicle-mounted catapulting-type unmanned aerial vehicle is used special for the adolescent national defense science and technology research, the advanced technical level in the field of national defense equipment is shown to adolescents, and popularization and development of national defense education is promoted.

The invention belongs to the technology researching field of cow molecular, in particular to the technical field of preparing the total DNA of the cow. The invention discloses a method for extracting the total DNA from the cow. Because the cow belongs to an economic animal, in order to avoid the stress caused by blood sampling and collecting the tissue of a living cow as well as overcome the problem of containing higher protein pollution of the extracted total DNA of a milk sample, the invention proposes a more convenient source to obtain the DNA, researches out a key technology from purifying the somatocyte of the milk sample to extracting the DNA with high quality, prepares the reagent for purifying the somatocyte of the milk sample and a cracking mixture for extracting the DNA by test, then uses alcohol with different concentration grads to wash, then uses a phenol method to extract and remove the protein and other matters like amylase, finally uses absolute ethyl alcohol to wash and dissolves into TE after being dried. The invention is simple and convenient to sample; the quality of the sample of the total DNA that is extracted is higher; the method is economic, stable and convenient; the invention provides a novel method for the application of the cow molecular.

The invention discloses an intelligent procedural remote control operation system. A topological fail-safe system of a D5000 automatic platform is arranged according to a topological relationship between an electrical island state and electrical equipment to realize fail-safe locking of equipment operation; the extraction of the topological fail-safe system is based on basic rules of operative locking between equipment as required by 'fail-safe', mutual operative locking equipment is found out through topological search so as to automatically adapt to the changes of the electrical equipment and a topological structure of a power grid. The intelligent procedural remote control operation system is a brand-new remote control technology researched and developed specific to a large operationalmode, has very strong innovativeness, safety and high efficiency, is quite beneficial to improving the working quality and efficiency of remote control operation, and can be wholly used for guaranteeing safe and stable operation of the power grid.

The invention discloses a Chinese sentence level lip language recognition method combining DenseNet and resBi-LSTM. The Chinese sentence level lip language recognition method divides the lip languagerecognition into two parts: Pinyin prediction and language translation, and reduces the lip language recognition difficulty. The Chinese sentence level lip language recognition method extracts visualfeatures by using DenseNet, and fully utilizes shallow features, thus effectively solving the problem of gradient disappearance, and reducing network parameters. The Chinese sentence level lip language recognition method uses 1 * 1 convolution for replacing full connection to achieve a feature dimension reduction function, and maintains space information in features, wherein the space informationplays an important role in lip language recognition technology research. The Chinese sentence level lip language recognition method uses the resBi-LSTM for processing the visual features, and finally,obtains the complex features combining the visual features and the semantic features, so that the loss of effective information is reduced, and the lip language recognition accuracy is improved.

The invention provides a processing method of stuffed parabramis pekinensis and relates to the technical field of food processing. The processing method of the stuffed parabramis pekinensis comprises the following technological processes: pretreating raw materials, preparing marinade, curing, carrying out air drying, quantifying, sealing, carrying out vacuum packaging, printing codes, and refrigerating. The processing method of the stuffed parabramis pekinensis has the advantages that use amount of table salt during curing is reduced, and the anti-bacteria and anticorrosion effects are realized by controlling use amounts of natural spices and white wine; the problem that a fish body is oxidized and yellowed is solved by adopting low temperature cold air drying and adding natural nutrients VC and VE. According to the technical scheme of the invention, the stuffed parabramis pekinensis is obtained by combining health and safety requirements of the modern food processing with low-salt, healthy and nutritional dietary requirements of people and product market circulation requirement and adopting scientific blending and the modern equipment for processing on the basis of a large number of tests, and the problem that the stuffed parabramis pekinensis is yellowed in colour and deteriorated in quality during storage is effectively solved. The stuffed parabramis pekinensis processed by adopting the processing method provided by the invention is delicious in taste and unique in flavour, and storage period tests carried out by the technology research and development center of the company (described in the specification) show that the storage period at the temperature of 0-4 DEG C can be more than six months.