615results about How to "Break the limitations" patented technology

The invention relates to a high-temperature-resistant and high-salinity-resistant water-plugging profile control agent, and a preparation method and application thereof. The water-plugging profile control agent comprises polyacrylamide, a composite crosslinking agent, cyclodextrin, metaphenylene diamine and deoxidant, wherein the composite crosslinking agent consists of aldehyde, phenol and aluminum citrate; the aldehyde is one or the combination of benzaldehyde and paraformaldehyde; and the phenol is one or more of phenol, resorcinol and hydroquinone. The water-plugging profile control agent can resist the temperature of 120 DEG C, can be directly prepared by using water with mineralization degree of 150,000 mg/L, and has high crosslinking performance and long-term stability. The preparation method for the water-plugging profile control agent is simple, convenient to operate, and easy to control, and water-plugging profile control agent has a good plugging effect, and construction can be performed after the water-plugging profile control agent is directly prepared on site.

The invention relates to an off-line experience store management system. The system comprises an experience management system terminal and a client identification system, an information query system, a mobile query terminal and an output device which are connected with the experience management system terminal in a communication way, wherein the experience management system terminal is connected with a remote central server in a communication way and performs data interaction and the synchronization of an experience goods database; the client identification system is used for identifying experience sheet numbers of clients coming into a store, transmits the experience sheet numbers to the experience management system terminal and generates experience serial numbers of the clients; the output device is used for displaying information to users in the store according to instructions of the experience management system terminal; the information query system is communicated with the experience management system terminal and is used for providing real-time query of store inventories and experience information for the clients or salesclerks; and the mobile query terminal is used for reading all the goods information of the store and uploading the goods information to the experience management system terminal. Therefore, the system can realize mutual combination of an on-line system and an off-line system and provides an integrated shopping platform.

The invention discloses an automatic control system of an unmanned aerial vehicle (UAV). The automatic control system comprises a processor unit, a controller, a first motor, a second motor, a third motor, a fourth motor, a signal processor and an unmanned aerial vehicle, wherein the processor unit transmits control signals to the controller; the controller divides the control signals into a first driving signal, a second driving signal, a third driving signal and a fourth driving signal; and the first driving signal, the second driving signal, the third driving signal and the fourth driving signal are used for controlling the first motor, the second motor, the third motor and the fourth motor respectively, and the first driving signal, the second driving signal, the third driving signal and the fourth driving signal which pass through the first motor, the second motor, the third motor and the fourth motor are compounded by the signal processor to control the movement of the unmanned aerial vehicle. The automatic control system of the UAV breaks through the limitation of high-voltage line patrol of 'giving priority to helicopter patrol and giving supplement to manual patrol' in the prior art.

The present invention discloses a photovoltaic array fault diagnosis method based on composite information, and belongs to the technical field of fault diagnosis. The method comprises: collecting working state composite information data of a photovoltaic array, and preprocessing the working state composite information data, wherein the working state composite information data comprises working state image data of the photovoltaic array and working state text data of the photovoltaic array; training a pre-established deep convolutional neural network fault classification model by using the working state image data of the photovoltaic array, and after the training is completed, obtaining an image fault classification model; training a pre-established support vector machine-based fault classification model by using the working state text data of the photovoltaic array, and after the training is completed, obtaining a text fault classification model; and fusing the image fault classification model and the text fault classification model by using a logistic regression algorithm to obtain a fusion model, training the fusion model by using the working state composite information data of the photovoltaic array, and after the training is completed, obtaining a photovoltaic array fault diagnosis model based on composite information.

The invention discloses a deep strategy learning method facing complex missions in a large-scale environment. The deep strategy learning method uses a deep nerve network to describe a state variable sensed by an intelligent agent, constructs a strategy model having a deep recursion type model, uses a strategy searching study algorithm to search an optimal parameter, and trains a nerve network until convergence. The deep strategy learning method uses a highly abstract and distributed expression capability of the deep nerve network to express the state variable sensed by the intelligent agent and constructs a strategy model having the deep recursion type structure, and is a first complete and intensive learning scheme which can systematically solve a complex decision problem in the large-scale environment.

This invention discloses multimedia monitor system, which contains client side with account information in plurality of area and having monitor terminal and monitored terminal, positioning server set in internet for receiving and storing account and address information transmitted by client side, register server set in internet for client side logging, registering and certificating according to positioning server, proxy server set in internet for receiving client side request and communicating among client sides, and among client side, register server and positioning server. Comparing with current technology, said invention has advantages of strong client side mobility, convenient use and fine system extensibility.

The invention relates to a ceramsite sand for casting and a preparation method thereof. The ceramsite sand comprises the following chemical components in parts by weight: 35-65 parts of silicon dioxide, 30-50 parts of aluminum oxide, 1-10 parts of iron oxide, 1-4 parts of manganese dioxide and 2-8 parts of chromic oxide. The method comprises the following steps: performing grinding, and detecting the chemical composition and contents of the raw materials; and sequentially performing proportioning, ball making, screening, sintering and grading to obtain the finished product. The ceramsite sand prepared by the invention is high in thermal conductivity and refractoriness, conforms to the requirements for casting sand, can be used for casting and casting mold production instead of silica sand, chromite sand and the like, reduces the discharge amount of solid waste in the casting industry, and improves the quality of cast products.

The invention relates to a method for self-assembly growth of three-dimensional orderly porous materials, which is a method for self-assembly growth of multi-component material colloid crystals with single structures or composite structures and three-dimensional orderly porous membranes by combining assistant acceleration of evaporation through characteristic infrared light and the control of the boiling temperature of a solvent by decompression. The method basically overcomes the defect that the prior method is not suitable for the situations of overlarge colloid particles, overhigh boiling point of the solvent in a colloidal solution system, no high temperature resistance of the colloid particles, incapability of completing crystal growth and so on when the prior method is applied to cooperated self-assembly growth of the multi-component colloid crystals and three-dimensional orderly porous materials of the multi-component colloid crystals. The method has the characteristics of high efficiency, easy control, simple operation and good repeatability, can grow the high-quality multi-component colloid crystals and the three-dimensional orderly porous membranes, and is suitable for self-assembly and cooperated self-assembly of multi-component colloid particle mixed systems with various particle diameters and various varieties.

The invention discloses a steering engine reliability simulation sampling method based on Markova chain Monte Carlo, which comprises four stages: 1, Markova process simulation, namely selecting the initial state of a Markova chain, determining a random transition sampling probability density function, determining the next state of the Markova chain and constantly repeating to generate random sample points, of which the limit distribution is asymptotically optimal, of an importance sampling density function; 2, kernel density estimation, namely selecting a kernel density function, determining a window width parameter and a local bandwidth factor and generating a mixed importance sampling probability density function by using a self-adaptive width and kernel density estimation method according to Markova state points; 3, importance sampling, namely performing importance sampling according to the mixed importance sampling probability density function generated in the second stage; and 4,statistical calculation, performing failure probability estimation according to the important sample points generated in the third stage and calculating the failure probability of the system. The method effectively solves the problems of low simulation efficiency, low precision and mixed system.

The invention discloses a system evaluation and detection method by a Bayesian model. The method includes: step A, establishing a logic relationship and an event relationship between a software system and a database therein after variable and relationship conversion; step B, establishing a fault tree model for a logic model according to the step A; step C, establishing a Bayesian network based on the fault tree model; step D, conducting system evaluation and detection based on the Bayesian network. The system evaluation and detection method by the Bayesian model has the advantages of low computational complexity, low computational difficulty, simplicity and practicality when used for system evaluation and detection by the Bayesian model.

The invention belongs to the field of electrolysis milling combined machining and relates to a detachable combined tool cathode and an electrolysis milling method thereof. The detachable combined tool cathode comprises a grinding head, a seal ring and a tool bar. The lower side wall and the bottom surface of the grinding head are provided with liquid outlet holes and electroplated with abrasive particle layers, and the lower end face of a hexagonal flange of the grinding head is coated with an insulating layer. In mounting, the grinding head and the tool bar are in threaded connection, and the seal ring is inserted into a retaining groove of the tool bar. By adoption of the tool cathode, drilling type machining at any position of the upper surface of a workpiece to a required depth can be performed prior to performing of milling type machining for acquisition of a required structure. Tool cost in electrolysis milling can be sharply reduced, and a technical application range can be expanded.

The invention discloses a performance reliability simulation method based on improved self-adaption selective sampling, successively comprising four steps of: 1. extracting an initial failed sample: taking the original mean value of parameters as a sampling center, taking 1-3 times of the original variance as a sampling covariance to carry out random search, and finding the initial failed sample by iteration; 2. extracting a batch of failed samples: randomly sampling by taking the failed sample searched in the step 1 as the initial sampling center of the step 2, adjusting the sampling center in the next circulation, and circulating until the failed sample of appointed number is extracted; 3. carrying out self-adaption selective sampling: calculating the initial sampling center and the initial sampling covariance in the step 3 according to the failed sample extracted in the step 2 , and carrying out cycling sampling stimulation; and 4. calculating: after one-time sampling, calculating the sampling center and the sampling covariance again, stopping stimulation when the stimulation result of failure probability is almost stable, and finishing the reliability stimulation of self-adaption selective sampling.

A frequency-configurable oscillator circuit applied to a switching power supply is used for generating a clock control signal and a ramp signal required by a switching power supply circuit and is an on-chip circuit. The frequency-configurable oscillator circuit includes a work module identification circuit, a delay circuit, a synchronization module, a charging current control circuit, and an internal oscillator. The oscillator can automatically generate corresponding control signals through the change of external configuration. The oscillator works in three different work modes which includes a fixed output frequency, an adjustable output frequency, and an external clock synchronization frequency. The oscillator circuit has simple configuration mode and high reliability, suits various configurable oscillator occasions, and satisfies different application demands.

The invention relates to a drive unit for rotating an outer ring and fixing an inner ring of an airplane wheel bearing. The drive unit is composed of a motor, a clutch, bearing seats, a drum wheel, a wheel axle and a coupler. The wheel axle is installed at the two bearing seats; and one end of the wheel axle is connected with a flange arranged at one end of the clutch by the coupler. The drum wheel is installed at the wheel axle by a key and is between the two bearing seats; and the external circumferential surface of the drum wheel rubs against the circumferential surface of a rubber wheel installed at a loading device in a cooperative mode. The rubber wheel is sleeved at the outer ring of the tested bearing. A brake plate is fixed at one end surface of the rubber wheel by a flange; and the braking disc of the brake plate is arranged at a braking clamping plate of a brake. The upper end of the brake is fixed at the lower surface of a loading substrate of the loading device. According to the invention, the working situation of the wheel bearing of the airplane in a sliding state can be simulated; and the bearing load is large and the rotating speed is fast. Therefore, the provided drive unit can be applied to various bearing testing machines.

The invention provides a loading device for a bearing tester. A movable place moves upwards and downwards with a stand column as a guide rail, and a loading base plate of a loading head is arranged in a guide rail groove in the lower surface of the movable plate. A test bearing is arranged on a loading shaft. A rubber wheel is arranged on the periphery of the test bearing in a sleeved mode. When the test bearing is tested, the test bearing is a group of machine wheel bearings including two sets of the machine wheel bearings which are arranged in the rubber wheel symmetrically. When the test bearing is tested, the stress working condition of the machine wheel bearings is simulated in the stop state of an airplane. The rubber wheel with the test bearing is arranged on the loading head of a loading system, a drum wheel is loaded through the rubber wheel, and the radial loading test of the bearing and the laterodeviation test loading test of the machine wheel bearings of the airplane are achieved. By means of the loading device for the bearing tester, large load loading can be achieved at a high rotation speed, the stress conditions of the machine wheel bearings in the processes of taking-off, high-speed gliding, instant impact at landing, laterodeviation landing and stop of the airplane can be simulated, the strength and service life of the machine wheel bearings can be assessed precisely, the reliable test basis is provided, and the development time can be shortened effectively.

The invention provides an ecological restoration system for a riverway and a restoration method thereof. The ecological restoration system comprises a new energy source power generation device, an electrical control device, a water quality online detection system, an aeration device, a microorganism culture device and a support device, wherein the support device comprises a floating body worktable; the aeration device comprises an air blower; the new energy source power generation device, the electrical control device, the water quality online detection system and the air blower are respectively arranged at the upper surface of the floating body worktable; the microorganism culture device is arranged at the lower surface of the floating body worktable. The ecological restoration system hasthe beneficial effects that 1, the anaerobic and aerobic bacteria are directionally cultured by microorganisms through a novel riverway control technology, so as to eliminate the bottom sludge and the pollution to the water body, and break through the riverway control limitation of the conventional single aerobic biochemical method; 2, the clean solar energy and a wind power generation system areadopted, so as to maintain stable and reliable power supply, and save the electric energy.

The invention relates to a method for quickly receiving and storing data in a shared file system. The method comprises the steps of: obtaining videos and audios; processing the videos and audios; sending video and audio data; receiving the video and audio data; and writing in a file. According to the method disclosed by the invention, by utilization of a large page memory, a user-state network card driving technology and a data and metadata separation technology, a storage server can quickly receive multiple channels of data flows sent by multiple client sides, and write the data flows in thefile; and thus, the purpose of storing hundreds of video flows at the same time can be achieved. By means of the method disclosed by the invention, the concurrent access efficiency of the shared filesystem is effectively increased; simultaneously, the more access files are, the more obvious the effect is; and, for the common education recording industry or video monitoring industry, the video storage efficiency is increased to a great degree.

The invention discloses an image encryption method based on the projection synchronization of a hyperchaotic system. The method comprises the steps of plaintext image quantifying and ciphertext image quantifying. The first step comprises generating of a hyperchaotic sequence of a hyperchaotic driving system, image row scrambling, image column scrambling, image diffusing, circulation image row scrambling, image column scrambling, multiple rounds of image diffusing, and a ciphertext image is acquired. The second step comprises ciphertext image quantifying, generating of a hyperchaotic sequence of a hyperchaotic response system, time acquiring, column scrambling index and line scrambling index valuing, image inverse diffusing, image inverse column scrambling, image inverse row scrambling, circulation image inverse diffusing, image inverse column scrambling, multiple rounds of image inverse row scrambling, and a decrypted image is acquired. According to the invention, a feedback mechanism with the current image is introduced; the row (column) scrambling address code and the key matrix are dynamically changed in each round of encryption; experiments show that the method has the advantages of good encryption effect, high security and large key space, can resist selected plaintext attacks, known plaintext attacks and various statistical attacks.

The invention discloses a coal gasification and coal coking co-supply and cogeneration system and method. The method comprises the following steps: preparing a coal-gasified crude synthesis gas from a part of raw material coal by a coal gasification process; obtaining clean coal-gasified crude synthesis gas and carbon dioxide after cooling, transforming and purifying the coal-gasified crude synthesis gas; feeding the clean coal-gasified crude synthesis gas into a chemical synthesis process to prepare a chemical product; preparing coke and a crude coke oven gas from the other part of raw material coal by the coal coking process, enabling a part of obtained coke to react with the carbon dioxide obtained in the coal gasification process to prepare carbon monoxide; purifying the obtained crude coke oven gas to obtain a clean coke oven gas, and then mixing the carbon monoxide with the clean coke oven gas according to a ratio, and then preparing a coal-coked synthesis gas; and feeding the coal-coked synthesis gas into a chemical synthesis process to prepare a chemical product. The coal utilization efficiency is effectively improved while energy conservation and emission reduction are realized in a co-supply manner of recovering CO2 produced in the coal gasification process and transporting to the coal coking process to generate the synthesis gas.

The invention relates to a separation determination method of a rivaroxaban optical isomer. According to the invention, proper amounts of a rivaroxaban optical isomer sample requiring detection and a rivaroxaban racemate standard sample with known component contents are fetched, and are respectively dissolved by using acetonitrile, such that acetonitrile solutions of the rivaroxaban optical isomer sample requiring detection and of the rivaroxaban racemate standard sample with known component contents are prepared; a bonded chiral column CHIRALPAKIC column is adopted, and feeding is carried out; a detection wavelength is 210-260nm, a column temperature is 15-35 DEG C, a feeding volume is 5-20mul, and a mobile phase flow rate is controlled at 0.7-1.0ml/min, such that the separation of the rivaroxaban optical isomer requiring separation is finished; and with an area normalization method, the obtained separation spectrum of the rivaroxaban optical isomer sample requiring detection and the separation spectrum of the rivaroxaban racemate standard sample with known component contents are compared, such that S-configuration and R-configuration rivaroxaban contents in the rivaroxaban optical isomer requiring detection are calculated.

The invention relates to an FCM-GASVM-based industrial control system intrusion detection method, in particular, a CM-GASVM-based industrial control system application layer network intrusion detection method. According to the method, unsupervised fuzzy C-mean clustering and a supervised support vector machine are combined so as to extract the communication traffic data of the Modbus/TCP of an industrial control system; FCM clustering is performed on the communication data; and a part of the data, which meet a threshold condition, are classified through a genetic algorithm optimized-support vector machine. Since unsupervised learning and supervised learning are combined together, training time can be effectively reduced with category labels not required to be known in advance, and classification accuracy can be improved.

The invention provides an unlocking method, an unlocking device and an unlocking system of an access control lock. The method comprises the following steps of: monitoring an electronic secret key provided by a user by the access control lock, wherein the electronic secret key comprises a plurality of types of information as follows: code type information of a user terminal, which is acquired by an image acquisition unit arranged on the access control lock, access control card information which is acquired by a card reader arranged on the access control lock, and Bluetooth unlocking information of the user terminal, which is acquired by Bluetooth equipment arranged on the access control lock, and the code type information comprises a barcode, a two-dimensional code, a three-dimensional code or a four-dimensional code; judging whether the user is a legal user or not by the access control lock through the electronic secret key; and if so, carrying out unlocking operation by the access control lock. By virtue of the unlocking method, unlocking device and unlocking system of the access control lock, the limitation that a traditional unlocking manner is single can be broken through and user experience is improved.

The present invention provides a question distribution method and a question distribution system for a Q & A platform, wherein the method comprises: obtaining a question entering into a Q & A platform; determining a user suitable for answering the question based on a question distribution model, and distributing the question to a third party platform where the user suitable for answering the question is located, wherein the question distributing model is established with user data collected from the third party platform interfaced with the Q & A platform; obtaining an answer to the question from the third party platform, and providing the answer to the question to a user posing the question. The present invention extends the source of answering a question to a third party platform interfaced with the Q & A platform, which breaks the limitation of the original Q & A platform, so that a user more suitable for answering the question in the third party platform can provide an answer, thereby enhancing the probability of the question being timely answered.