84results about How to "Complex" patented technology

The invention relates to the technical field of encryption, in particular to a file encryption method which comprises the steps that a target storing mode of a packed file to be encrypted is determined according to an instruction; if the determined target storing mode of the packed file to be encrypted is a local basic storing mode, the feature information of the packed file to be encrypted is determined; the packed file to be encrypted is cut according to the feature information to form file blocks; the sequence of the file blocks is disorganized, then the file blocks form an out-of-order file; the out-of-order file is packed and packaged to form a packaged file. According to the file encryption method, obtaining the packed file to be encrypted in the packaged file is complex, the difficult of the process of obtaining file content in the packaged file is increased, and accordingly safety and reliability of encryption of the encrypted packaged file can be improved.

The invention provides a method for seeking a mapping scheme between tasks and nodes of a network on chip, which comprises the following steps: initializing a scheme group Jt comprising K allocation schemes ( K indicates number); determining network on chip energy consumption, response time and a fitness value in each scheme in the scheme group Jt; according to the size of the fitness value and the like, prioritizing, grouping and exchanging and carrying out other processes to obtain the preferred scheme finally. The energy consumption and the response time are separated to be used as preferred indexes of an evaluation scheme, and the energy consumption and the response time are simultaneously considered in the process of seeking the optimal scheme, so that the sought scheme can minimize the energy consumption and system delay, and thereby, the performance of the network designed by the preferred mapping scheme between the tasks and the nodes is the best, and the method has the characteristics of complexity and simple implementation compared with other methods for seeking preferred scheme of mapping between the tasks and the nodes in a plurality object functions. The simulation confirms that the method of the invention has quick convergence rate.

The invention discloses an Internet of Things privacy protection access control method based on block chain technology. The method comprises the steps that a resource owner defines an access permission strategy for a resource request of a requester; a policy management point of a resource owner performs language transformation on the access permission policy, generates a Token at the same time, and encrypts the Token by using the public key of the requester, and the resource owner sends the access permission policy to the requester as a transaction; the strategy management point of the resource owner broadcasts the transaction to the Internet of Things network, and packages the transaction into the block chain after determining that the transaction is valid; the requester initiates the transaction through the Token sent by the resource owner, and sends a decryption script of the access permission strategy after language conversion to the resource owner at the same time; and the resource owner verifies the correctness of the decryption script, determines whether to give access control authority to the resources to the requester according to a verification result, and uplinks the transaction record in the blockchain after the decryption script is correct.

The invention discloses an artificial conglomerate core which is used an indoor physical simulation experiment, and belongs to the technical field of oil-gas field development physical simulation. The artificial conglomerate core is mainly prepared from the following raw materials in percentage by weight: 2-15% of clay, 5-25% of cementing matter, 20-50% of river sand and 30-60% of quartz sand. The artificial conglomerate core has the advantages that the source problem of the conglomerate core in physical simulation is solved, the obtained artificial conglomerate core is stable in structure, complicated in pore throat structure and diverse in core components, has the characteristics of simple structure and stable property and can replace natural core to be used in physical simulation, and the shortcomings that the pore throat disposition, wetting property and the like of the synthetic core have great difference from those of the natural core are effectively overcome.

The invention belongs to the technical field of wireless communication, specifically relates to an adaptive measurement based compressed data collection method in a wireless sensor network, the methodcomprises the following steps: initialization: estimating spatial-temporal correlativity of node data according to historical data information; signal priori estimation: estimating priori informationof the current signal through the spatial-temporal correlativity of node data; compressed data collection; data reconstruction; and measurement times updating; by the steps, the adaptive measurementbased compressed data collection method in the wireless sensor network provided by the invention automatically adjusts the measurement times according to variance of sparseness of to-be-measured signals, guarantees reduction of data transmission quantity in the wireless sensor network under the premise of precise reconstruction, and prolongs network service life.

The invention discloses a method for searching a mapping scheme between tasks and nodes of an NoC and a network code position. According to mapping of multicast applications on the wireless NoC, during searching of an optimal node distribution and route selection scheme, total power consumption and response time of the unicast task serve as priority indexes for checking the scheme, and meanwhile, the maximum throughput rate of the multicast task and the lowest network transmission power consumption of the multicast task are guaranteed. Thus, the performance of the network designed as per the scheme selected according to the method is optimal, and compared with other methods for searching priority schemes of mapping between the tasks and the nodes under the conditions of multiple objective functions, the method has the advantages of being low in complexity and easy to implement.

The invention discloses an air-ground amphibious four-footed emergency rescue investigation robot. The investigation robot comprises an unmanned aerial vehicle system, a four-footed system and a transmission system, wherein the unmanned aerial vehicle system comprises a fuselage, arms, a dual output shaft motor and a rotor wing; the transmission system comprises a shell connected with the arms and a worm wheel and worm driving mechanism arranged in the shell, an input end of the worm wheel and worm driving mechanism is connected with the lower ends of output shafts of the dual output shaft motor by virtue of a unidirectional coupler, and an output end of the worm wheel and worm driving mechanism is connected with the four-footed system in a driving way; and the four-footed system comprises four sets of crank and connecting rod mechanisms and elastic soles arranged at the tail ends of the crank and connecting rod mechanisms respectively. Compared with the prior art, the air-ground amphibious four-footed emergency rescue investigation robot provided by the invention integrates flying and walking into a whole, is simple in structure and easy to control, has stability and robustness at the same time and can land to ground in a critical area, move everywhere on the ground and acquire site hazardous gas and video data, and the accuracy and effectiveness of data are improved.

The invention discloses a grid curved surface reconstruction method for scene understanding, and belongs to the field of three-dimensional graphics. The method comprises the following steps of: automatically identifying abnormal data through a mathematical model based on an undirected graph network, and estimating and adjusting a point cloud normal vector in an internal curved surface mapping manner; solving low-latitude feature information of the point cloud model, extracting a skeleton center curve, and designing a block segmentation mode of a complex branch area; for the point cloud from which the branches are removed, adopting a depth map mapping mode to identify and construct a visual field visible area of the point cloud, and designing a visual clustering-based slice body segmentation mode; constructing a self-learning scene understanding model based on the segmentation result, and realizing automatic restoration of the missing region; finally, designing a point cloud reconstruction algorithm based on a hyperspherical mapping mechanism, and surface data reconstruction loyalty of the original point cloud is achieved, and the method can be applied to efficient and accurate reconstruction of a CAD model, a building, an organism and a point cloud model mixed with multiple scenes.

The invention discloses a digital signal encryption processing method, which concretely comprises the following steps of S1, collecting user biological features and generating a personnel secret key; S2, segmenting a digital signal, and using the personnel secret key and an encryption algorithm for encrypting the segmented digital signal; S3, packaging the segmented digital signal and transmitting the signal to a digital signal decryption receiving end; S4, performing decryption by the digital signal decryption receiving end to obtain an original segmented digital signal, and combining the original segmented digital signal to obtain an original digital signal. The method can realize high-safety and high-reliability digital signal transmission.

The invention provides a software and hardware integrated portable remote sensing image real-time processing system. The system is characterized in that a computer with multiple GPUs and multiple CPUs is arranged and used for achieving integrated full-automatic processing from data real-time receiving to real-time generation of image products; a cluster scheduling manager is embedded in the computer and used for completing real-time distribution of computing resources and storage resources and supporting emergency scheduling; the computer is provided with a data receiving program, a data formatting program and a remote sensing image processing program, and based on the cluster scheduling manager, integrated full-automatic processing is executed through cluster task distribution and scheduling. By means of the system, multi-scene remote sensing images can be processed at the same time, and the requirement of the speed of processing the large-scale remote sensing images under emergency conditions is met.

The invention discloses a vegetarian essence and a processing method thereof. The vegetarian essence is prepared by taking champignons, potatoes, onions, fermenting soy sauce and the like as the raw materials. The invention further discloses the processing method of the vegetarian essence. The vegetarian essence prepared with the processing method has an aroma and mouthfeel of natural meat, and has a lasting and dense aroma.

The invention provides a method for preparing a comb-type polyether polyurethane macromolecular ionic liquid material by hydroxy-terminated polyepichlorohydrin (PECH), mainly comprising four steps, wherein, the main chain and the short side chain of the obtained macromolecules both take polyether structures. A polyether chain is a flexible chain, with low glass transition temperature; the ether bonds on the main chain and the side chain can complex with some metal ions; and the side chain also comprises ionic liquid groups, thereby having higher conductivity and good mechanical property and wide range of applications. The prepared comb-type polyether polyurethane macromolecular ionic liquid material can realize adjustable conductivity and electrochemical windows of the material by compounding with small molecular ionic liquid or inorganic salt. The comb-type polyether polyurethane macromolecular ionic liquid material has the characteristics of flexible, transparent and easy molding.

The invention discloses a voiceprint recognition automobile login method. The method includes the following steps that a voice collector is used for collecting voice information, and a login voice file is obtained; voiceprint features of the login voice file are extracted; the voiceprint features are compared with a standard voiceprint digital file, a login numerical value string corresponding to the login voice file is obtained, and each voiceprint feature of the standard voiceprint digital file corresponds to one specific numerical value; the login numerical value string is compared with registered numerical value strings in a database for identity authentication, and an authentication result is obtained; the identity of a user is confirmed according to the authentication result; voice of the user is collected, the features of voiceprints of the voice are extracted, the voiceprint features are converted into the numerical value string, the numerical value string is compared with the numerical value strings in the database for identity authentication, the identity of the user is confirmed, and whether the user can log in to an automobile control system or not is judged.

The present invention provides a power carrier communication system. The system comprises a signal transmitting terminal, a power terminal and a signal receiving terminal which are connected in order.The signal transmitting terminal comprises a data encryption unit connected with a data grouping unit, a private key generation unit and a carrier communication unit, the carrier communication unit is connected with a power line, the signal receiving terminal comprises a data decryption unit, the data decryption unit comprises a private key obtaining unit, a data combination unit and a data receiving unit, the data receiving unit is connected with the power line, the carrier communication module is connected with a signal modification unit, the data receiving unit is connected with a signal correction unit, and the signal modification unit and the signal correction unit are connected with a processing unit. The power carrier communication system is reasonable in structure, corrected in signals, high in reliability, high in accuracy and good in secrecy safety.

The invention discloses a method for designing a mapping scheme and a topological structure between a task and a node in an on-chip network. The method is characterized by comprising the steps that power consumption and response time are separated and used as preferential indexes for an appraisal program, the power consumption and the response time are simultaneously considered in the process of finding the optimal scheme, the aim of enabling the power consumption and the response time to be simultaneously minimum through the found scheme is achieved, and in addition, the topological structure enabling the power consumption and the response time to be minimum is selected.

The invention discloses an industrial cold end circulating water optimization and energy saving control system. The system comprises an information acquisition system, an information storage system, a DCS center control system, a circulating water system, a cold end supplementary water system and a cold end sewage discharging system. The information acquisition system can acquire related data information of a condenser device, a generator cooler, an oil cooler device, a cooling tower system, the circulating water system, the supplementary water system, the sewage discharging system and the quality of circulating water. The DCS center control system carries out serial analysis and diagnosis on the data comprehensively. The industrial cold end optimization and energy saving control system can achieve accurate and comprehensive control over the running state of a cold end in time and achieve the analysis of a large size of data and remote data transmission and control.

The invention relates to a sailboat sports simulation training platform. The sailboat sports simulation training platform comprises a base plate and a simulation sailboat, wherein a lower end of the base plate is provided with a first support frame, the middle portion of the upper portion of the base plate is provided with a second support frame, the first support frame comprises a vertical shaft,the base plate can be rotatably supported on the vertical shaft, the second support frame comprises a transverse shaft, the simulation sailboat can be rotatably supported on the transverse shaft, a left and right rocking mechanism is arranged below one side of the base plate to realize vertical angle adjustment, and a front and back rocking mechanism is arranged below one side of the simulation sailboat to realize transverse angle adjustment. The invention further relates to a control method for the training platform, a real-time sailboat state recorder is further comprised, the real-time sailboat state recorder is utilized to acquire actual operation parameters of the sailboat in the sea in real time, through the training platform simulating the actual operation parameters of the sailboat in the sea in real time, a trainer adjusts a self-balancing training device by himself to exercise the actual combat control ability.

The invention relates to a processing method of a SMD quartz crystal resonator. The processing method comprises the following steps: firstly providing a complete board resonator semi-finished product, wherein the complete board resonator semi-finished product comprises a base complete board and a cover complete board covered on the base complete board; and then cutting the cover complete board on the complete board resonator to form single base cover boards, and spraying and coating protective layers on the upper surface and sections of each cover board, wherein the method for spraying and coating the protective layer comprises pretreatment process and spraying and coating process; the pretreatment process comprises cleaning, washing, air showering and drying; the spraying and coating process comprises the following steps: firstly spraying and coating the spraying and coating material on the upper surface and section of each base cover board of the resonator complete board by using an electrostatic spraying and coating process to form the coatings, and then performing curing treatment on the coatings to form the protective layers on the upper surface and the section of each base cover board. The processing method disclosed by the invention aims at improving the salt mist resistance and high temperature and high humidity resistance of the SMD quartz crystal resonator under the severe environment. The invention further relates to a resonator prepared by adopting the above-mentioned method.

The present invention relates to the technical field of food processing and particularly to saccharomyces cerevisiae and a microbial agent as well as an application thereof to preparation of a fermented product and particularly brewing of a wine in a Huazhuo basin. The saccharomyces cerevisiae is deposited with the number of CGMCC No. 20562. The saccharomyces cerevisiae provided by the present invention is good in fermentation performance, strong in fragrance production capability and relatively high in tolerance.

The invention discloses an intelligent warehouse management system based on SOA and a genetic algorithm. The system mainly comprises (1) a basic information module; (2) a warehousing module; (3) a warehouse-out module; (4) a checking module; According to the system, the working efficiency of enterprise warehouse workers is greatly improved, and the defects that output and storage processes are tedious and messy, and the period is long are greatly reduced; Besides, based on comprehensive automation of enterprise warehouse management, vulnerabilities in warehouse-in management, warehouse-out management and inventory management can be reduced, a lot of management expenses can be saved, and enterprise income is increased; In addition, operation automation of warehouse management and information electronization comprehensively improve the warehouse management level of enterprises.

The invention discloses an encrypted transmitting method for power carrier data. The method can be in finite approximation to an optimal frame length of an IPv6 packet segment self-adaptively, has relatively low complexity, can be converged quickly to obtain the optimal frame length and efficiently supports IPv6. A system can generate a key according to personal information of a user, so that the key has the uniqueness and the complexity; and in digital signal encryption and decryption processes, by performing a bit operation on a plaintext digital signal, a user key and a first random digital signal to obtain a first ciphertext digital signal, simultaneously performing the bit operation on the user key and the first random digital signal to obtain a second random digital signal and performing the bit operation on the second random digital signal and the first ciphertext digital signal to obtain a second ciphertext digital signal, and at last, performing a reverse bit operation on the second ciphertext digital signal to obtain an original plaintext digital signal, the problems of confidentiality and poor security of the digital signal are solved, and the cracking difficulty is increased greatly.

The invention relates to a patient behavior multimodal analysis and prediction system based on statistical learning. The system comprises a multimodal acquisition module, a posture-based patient behavior recognition module, a physiological signal-based patient behavior recognition module, an emotion signal-based patient behavior recognition module, a voice signal-based patient behavior recognitionmodule and a multi-kernel learning-based fusion module. The multi-kernel learning-based fusion module comprises a multi-kernel classifier, and the training process of the multi-kernel learning-basedfusion module specifically comprises the steps that all kernel functions are trained and combined, then overall training is conducted, and the weight coefficient of each kernel function is obtained. Compared with the prior art, according to the invention, the applied multimodal data is closer to the real form of the patient information flow under the background of cloud computing and big data, hascomprehensiveness and complexity, reduces the loss of a large amount of information when facing complex nonlinear multi-modal information processing by utilizing the multi-feature multi-core learningmethod, and has better performance when processing data with larger modal span.

The invention discloses a method for quickly and dynamically displaying different detail levels of a point cloud data large scene. The method comprises an architecture for displaying software and hardware and presentation between the architecture and the software and hardware. The architecture of the display software and hardware comprises a server side, a communication module and a browser, a point cloud database and an algorithm model based on a 3D scene are stored in the server side, the communication module internally comprises an instant display point cloud data transmission module and arole lens information transmission module, and the communication module is electrically connected with the server side and the browser. In the application process, the complexity of data transmissiondoes not depend on the complexity of a scene; and the browser only needs to cache a small part of data, a large amount of data and calculation are completed by the server, so that popularization and application are facilitated.

A method for machining small-bore concave spherical crown or concave ball ring surface parts through a multi-magnet distributed annular magneto-theological polishing tool is characterized in that according to the size of the parts, a plane equivalent polishing tool and a test are prefabricated to determine the main process parameters, and permanent magnets are designed according to the process parameters and the structural shape of the parts and assembled into the annular magneto-theological polishing tool. Track simulation is conducted through the Matlab software to determine the rotation speed series capable of achieving axial and circumferential even removal. The parts and the annular polishing tool are subjected to sphere center positioning mounting, and the inclination angle alpha ofthe part axis and the tool axis is adjusted. According to the main process parameter values, a machine tool workpiece shaft and a tool shaft are started, and magneto-theological polishing liquid is continuously supplied to the machining area to conduct polishing machining on the concave spherical crown (concave ball ring surface) parts. The method can make the surface roughness achieve the nanoscale super-smooth surface, and achieves a better correction function for the surface figure accuracy (sphericity) of the parts.

The invention discloses a power line carrier communication system. The system can adaptively approach to an optimal frame length of an IPv6 packet slice in finite times, the complexity is low, the convergence can be carried out quickly to obtain the optimal frame length, and the IPv6 is efficiently supported; the system can generate a key according to personal information of a user, so that the key is unique and complex; and in a digital signal encryption and decryption process, bit operation is carried out on a plaintext digital signal, a user key and a first random digital signal to obtain a first ciphertext digital signal, meanwhile, the bit operation is carried out on the user key and the first random digital signal to obtain a second random digital signal, the bit operation is carried out on the obtained second random digital signal and the first ciphertext digital signal to obtain a second ciphertext digital signal, and finally reverse bit operation is carried out on the second ciphertext digital signal to obtain the original plaintext digital signal. The problem of poor confidentiality and security of the digital signal is solved, and the breaking difficulty is greatly increased.

The invention provides an in-situ digitized monitoring method for a seabed sediment resuspension nonlinear dynamic process. The in-situ digitized monitoring method comprises the steps that suspended sediment concentration inversion is conducted through seabed-based ADCPs, a probe of each ADCP serves as a signal source, and therefore space-time distribution of the suspended sediment concentration is obtained; a blind source separation technique is used for separating the suspended sediment concentration; according to the principle of nonlinear dynamics, a track of the suspended sediment concentration in a state space is reconstructed by utilizing a time series, and suspended sediment concentration information is converted into correlation dimensions, complexity, a maximal Lyapunov index and an approximate entropy nonlinear index, wherein the correlation dimensions, the complexity, the maximal Lyapunov index and the approximate entropy nonlinear index reflect the features of the nonlinear dynamics; a nonlinear trend is drawn by means of a nonlinear index of the time series and used for reflecting changes in the features of the nonlinear dynamics in the whole process. The in-situ digitized monitoring method for the seabed sediment resuspension nonlinear dynamic process realizes seabed in-situ real-time monitoring of nonlinear dynamic behaviors of changes of the suspended sediment concentration in the resuspension process, provides technical support for mechanism study in the seabed sediment resuspension process, and has the application value of establishing a suspended sediment concentration change model later and predicting the suspension and raise amount of seabed sediments.

The invention discloses a nylon copper plating film and a preparation method thereof. The preparation method comprises the steps of carrying out surface treatment on a nylon film, sensitizing and catalyzing the nylon film, preparing a plating solution and a reducing solution, and preparing the nylon copper plating film. The preparation method comprises the concrete steps of using sand paper and asodium hydroxide solution for carrying out surface treatment on the nylon film, then activating and catalyzing in a silver-ammonia solution and a sodium hypophosphite solution, and finally carrying out copper plating on the nylon film in a plating solution so as to obtain the nylon copper plating film. The method provided by the invention is simple, safe, green and environmentally friendly in process without the need for complicated equipment, and lower in cost; the produced nylon copper plating film finished product is higher in yield, complete in plating layer covering, and controllable in thickness, has a wide application prospect and is suitable for industrial application.