9018results about How to "Guaranteed validity" patented technology

The invention belongs to the technical field of GNSS engineering safety, and relates to an anti-interference normal null widening method for a dynamic GNSS receiver. On the basis of a normal-distribution probability model, a null widening model of the dynamic GNSS receiver is provided. The model is linearized on the situation of small angle changing, and frequency spectrum gains formed before and after widening are compared by means of a Matlab simulation tool. By means of a power insertion algorithm, the relationship of an output SNR and an input INR is analyzed before and after widening, and ultimately engineering realizability of an algorithm is put forward through FPGA and DSP platform verification. As is shown by a result, widening null formed through the widening algorithm can effectively counteract interference sources changing within a certain range, the aim of preventing dynamic interferences is achieved and robustness of a self-adaptation algorithm is improved.

The invention discloses an intelligent inspection system and an inspection method for an electric transmission line by an unmanned aerial vehicle. The intelligent inspection system comprises an inspection mission planning system, a dispatching system, a monitoring system, an inspection result processing platform and mobile branch stations, wherein the inspection mission planning system communicates with the inspection result processing platform and the dispatching system respectively; the inspection result processing platform and the dispatching system communicates with the monitoring system respectively; the monitoring system is connected and communicate with the mobile branch stations. The inspection method has the benefits that factors of the inspection unmanned aerial vehicle, inspection equipment, an inspector, and the like accessing the dispatching platform through a dispatching terminal can be dispatched effectively to realize equipped configuration of unmanned aerial vehicle inspection resource; the usage rates of personnel and equipment can be improved; the no-load rate and vacancy rate of the inspection equipment are reduced; through centralized monitoring of condition information inspected by the unmanned aerial vehicle, unmanned aerial vehicle inspection dispatching personnel can master unmanned aerial vehicle inspection in the large effectively; the service life of the unmanned aerial vehicle is prolonged.

The invention provides a dynamic flow dispatch method and system based on a software definition network. The method comprises a step of carrying out deep analysis of flow through flow information uploaded by a switch, and classifying flow types by a flow identification and grading module according to priorities, a step of calling a statistic management module to obtain information of switch ports, calculating joint links of the switch, and sending information of the joint links to a topology management module, a step of calling the topology management module to obtain a feasible path for flow direction and calculating real-time sate statistic information of the feasible path, and a step of analyzing features of the joint links to calculate weight of the joint links in the overall selection, working out the optimal dispatch strategy based on the weight and giving out the optimal dispatch strategy. The invention can achieve the optimal real-time dispatch of network flow, so that flow is enabled to reach a destination in a fastest manner, and purposes of improving the bandwidth utilization rate and optimizing network performances are finally realized.

The invention discloses a dynamic node management method realized based on a BFT consensus algorithm. The management method comprises the following steps: a new node obtains the admission and participation consensus qualification of a block chain network through offline certificate acquisition on the block chain network, and requests the connection to the existing node of the whole network so as to successfully join in the consensus after the verification is passed; when requesting to exit the block chain network, one node requests the exiting to the whole network, and successfully exits the block chain network after each node administrator agrees the exiting. The specific step of newly adding the node is as follows: the new node acquires the connection information of the whole network after passing the introducer node connection by taking the CA certificate, and then joins in the block chain network through the whole network consensus and the accomplishment of the synchronization of the new node. The specific step of deleting the node is as follows: the node in opt-out broadcasts the exit request to the whole network, each node administrator agrees to the exiting and broadcasts the deletion of the exiting node to the whole network; when the whole network consensus agrees to the node exiting, the respective connection is updated, and the connection with the opt-out node is interrupted, and the node is cleared from the block chain network.

The present invention relates to an indoor mobile robot positioning system and method based on two-dimensional code. The system includes a two-dimensional code positioning controller mounted on a mobile robot, a two-dimensional code acquisition device and a two-dimensional code label distributed in the indoor environment. The two-dimensional code positioning controller is composed of a microprocessor and a communication interface that are connected together. The microprocessor is connected with the two-dimensional code acquisition device through the communication interface and is used for controlling the two-dimensional code acquisition device to acquire two-dimensional code images, receive the two-dimensional code images acquired by the two-dimensional code image acquisition device and realize precise positioning function. The method acquires an actual position of the mobile robot through photographing the indoor two-dimensional code labels, transforming coordinates and mapping code values. The method of the invention organically combines visual positioning technique, two-dimensional code positioning technology and two degree of freedom measuring technology to realize the function of precise positioning of the mobile robot and solve problems of complex image processing and inaccurate positioning of a traditional vision positioning system.

The invention discloses a webpage preloading method and a system. The method comprises the steps of determining a hot link contained by a source webpage; when a user accesses a source webpage, preloading the target webpage corresponding to the hot link contained by the source webpage; and as determining that the user has the intention to open the hot link in the webpage, in combination with the result of the preloading, displaying the target webpage corresponding to the hot link to the user. The method and the system provided by the invention can increase the validity of preloading, and at the same time expand the application scope of the preloading technology.

The invention discloses a mobile robot obstacle avoidance navigation method and system. The method includes the following steps that: a global map of a home environment is established; the starting point and destination of the movement of a robot are set; the movement path of the robot is planned according to the A* algorithm; the position of a obstacle is marked in the global map; the movement path of the robot is re-planned according to the A* algorithm; the robot is controlled to move according to the planned path; and the robot arrives at the destination and stops moving. With the mobile robot obstacle avoidance navigation method and system of the invention adopted, unknown environment can be detected, so that the information of unknown obstacles can be obtained, and the estimation function is adopted to plan the shortest and most economical path, and therefore, the equipment cost of the obstacle avoidance navigation of the robot can be decreased; the position and movement attitude of the robot can be monitored in real time, and the walking attitude of the robot can be adjusted and controlled in real time, and the accuracy and effectiveness of the obstacle avoidance navigation of the robot can be ensured.

The invention mainly belongs to the technical field of information security, and specifically relates to a novel decentralized public key management method and a trusted model. The method is constructed on distributed data network platforms such as a block chain and P2P (Peer to Peer) in order to ensure that all nodes in the platforms can participate in maintenance of whole-life-cycle management of public keys of users, and the changes of the public keys of the users in various states in a life cycle are recorded in a bill form. Through the method, public keys passing verification can be recorded and added into a consistent public key storage structure of a platform to be saved; a public key log chain is generated for all public key records of the same user according to a time sequence, and an authentication chain and a trusted network are formed on the basis of a referrer signature; and efficient search of the public keys can be realized on the basis of user identifiers. Through adoption of the method, the public keys of the users can be issued and acquired conveniently and accurately, and the effectiveness, correctness, consistency and non-fraudulence of acquired public keys are ensured. The method can be taken as an infrastructure supporting authentication, encryption, integrity and accountability services.

The invention provides an intelligent prescription auditing system and an intelligent prescription auditing method. The system is provided with an input module, various databases, a prescription auditing module, a dispensing explaining module, and an output module. The method is implemented as follows: a doctor refines a prescription through the input module and then sends the prescription to the prescription auditing module; after receiving the prescription, the pharmacist reviews writing rules, indications, dosage, incompatibility and drug interactions of the prescription according to various databases; the doctor returns checking comments of the disqualified prescription to the prescription input module so as to modify or re-issue the prescription or give suggestions, and sends the qualified prescription to the dispensing explaining module; after receiving the prescription, an allocation doctor allocates medicines; after receiving the prescription, a dispensing doctor generates prescription information, a medication explaining matter and the like of dispensing explaining, which are printed by the output module and then explained to a patient. The invention provides a medicine dispensing control system and a medicine dispensing control method which are capable of effectively avoiding great prescription, irregular prescription, unsuitable medication for the prescription and unconventional prescription.

The invention provides a display substrate, a manufacturing method thereof and a display device. The display substrate includes a substrate, a plurality of pixel island regions arranged in an array onthe substrate and spaced apart from each other, a plurality of hole regions, and connection bridge regions located between the pixel island regions and the hole regions, wherein each connection bridge region is provided with a partition structure layer for disconnecting an organic light emitting layer and a cathode of the connection bridge region. As the partition structure lay is arranged in each connection bridge region and the partition structure layer disconnects the organic light emitting layer and the cathode of the connection bridge region, a water vapor intrusion path intruding to theorganic light emitting layer and the cathode in the pixel island region from the hole region can be completely blocked, the validity and the reliability of packaging are effectively ensued, the design difficulty is low, the manufacturing cost is low, process realization is easy, and the problems of high design difficulty, high manufacturing cost and difficult process realization existing in the current packaging scheme can be effectively solved.

Plasma deposition apparatus (1) and method that allows metal or nonmetal vapor (6) to be generated by electron-beam evaporation, guides that vapor using a noble gas stream (containing reactive gases in cases of reactive evaporation), ionizes the dense directed gas and vapor stream at working pressures above about 0.0001 mbar using a hollow cathode plasma arc discharge (11), and conveys the ionized vapor and / or gas stream towards the substrate (4) for impact on the surface at energies varying from thermal levels (as low as about 0.05 eV) up to about 300 eV.

The invention discloses a quality safety tracing method for food processing enterprises. The quality safety tracing method includes the steps that a laser coder generates random tracing codes according to a coding rule when a laser marking machine in a production line device is dynamically read in an on-line tagging mode; the laser marking machine carries out tracing mode marking on products on a production line, and two-dimension codes and plain codes are all marked on packages; a fixed reader is used for scanning and reading designated tagged code portions of the products; the two-dimension codes are successfully scanned and read, the tracing codes are recorded, and relevance between the tracing codes and commodity attribute information is completed; if the two-dimension codes fail to be scanned, the two-dimension codes will be removed through a removing device; the commodity tracing code information and the commodity attribute information are recorded into a relational database; after the products are packaged, package code data and product tracing code data are related; the products are stacked, stacking codes and tagged stacking codes are generated, and the stacking codes and the product package code data are related; the stacking codes are scanned, storage of the products is completed, delivery orders and the stacking codes are scanned to complete delivery, and the database records delivery information.

The invention provides an alarm association rule obtaining method of the mobile internet. A system comprises five parts of the obtaining of alarm data, the preprocessing of the data, the setting of parameters, the acquisition algorithm of the alarm association rule, and the expressing and the explaining of the association rule. The method comprises the steps: integrating, selecting, cleaning and changing communication alarm data; setting an alarm time window and an alarm sliding step length, and converting preprocessed relation type data into conventional type data to be convenient to obtain the alarm association rule; and setting support level and confidence level parameters, calling the acquisition algorithm of the alarm association rule based on a full itemset, obtaining the association rule from the alarm data according to the set parameters, and expressing and explaining the obtained alarm association rule. On the basis of the alarm association rule obtaining method, the alarm association analysis of the mobile internet can be realized without the participation of specialists, operation personnel and maintenance personnel, and the processing efficiency is doubled and redoubled under the condition that the operation cost is lower; and independent of a topological structure of a communication network, the method can be adapted to the complex, variable and isomerous communication network, can be used for automatically discovering the alarm association rule, is particularly suitable for the alarming and the monitoring of the mobile internet, and is wide in application prospect and good in practical value.

The invention relates to a battery management system performance test platform and a testing method based on semi-physical simulation and belongs to the field of systems. According to the battery management system performance test platform and the testing method based on semi-physical simulation, the problems existing in the aspects of effectiveness, practicality, accuracy, generality and comprehensiveness of an existing battery management system testing device and method are solved. A BMS to be tested and a simulation control and emulating unit of the test platform are connected with a CAN bus. A signal output end of an insulation resistance testing device, a signal output end of an insulation voltage resistant testing device, a signal output end of a 24-channel single-body voltage simulator, a signal output end of a high-voltage source, a signal output end of a current source and current reversing module, a signal output end of a high-accuracy temperature environment box, a signal output end of an insulation resistance simulator and a signal output end of a direct current power source are respectively connected with corresponding signal input ends of the BMS to be tested. The BMS to be tested is arranged in a high-low-temperature operational testing box. The testing method comprises the steps of safety testing and the comprehensive testing of state parameter measuring accuracy, SOC estimating accuracy, a battery fault diagnostic function, a heat management function and environment adapting performance and is used for testing the battery management system.

The invention discloses an urban storm flood monitoring and traffic controlling and guiding system and method. The urban storm flood monitoring and traffic controlling and guiding system comprises a water depth data collecting and rectifying unit, a unit for analyzing and predicting water depth and on-off control of a drainage pump station and an early warning issuing and traffic controlling and guiding processing unit. The water depth data collecting and rectifying unit is used for performing comparison and check analysis by collecting water depth data of different types at water accumulating spots and obtaining water depths at the water accumulating spots. The unit for analyzing and predicting water depth and on-off control of the drainage pump station is used for performing trend analysis and rolling correction on the water depths of the water accumulating spots by combining zone rainfall data of surrounding rainfall stations on the basis of the water depths obtained by the water depth data collecting and rectifying unit and achieving automatic on-off of a drainage pump unit according to an accumulating water depth predicting curve. The early warning issuing and traffic controlling and guiding unit is used for processing obtained traffic controlling and guiding information and sending the information to a controller and early warning and instructing pedestrians and vehicle drivers in various manners according to safety pass standards of water-accumulating roads. The urban storm flood monitoring and traffic controlling and guiding system and method have the advantages of being reliable in data, stable in communication, comprehensive in function, professional in handling and the like.

The invention provides a method and a device for recovering an oil and gas reservoir rock mechanics underground in-situ model. The method comprises the following steps of: measuring rock mechanics parameters of an oil and gas reservoir; counting rock mechanics property influence parameters of the oil and gas reservoir; calculating the anisotropy strength of the rock mechanics parameters; obtaining a correlation between the rock mechanics parameters and the rock mechanics property influence parameters of the oil and gas reservoir; obtaining a correlation between the rock mechanics property influence parameters and the anisotropy strength; and recovering the oil and gas reservoir rock mechanics underground in-situ model by adopting the rock mechanics parameters, the anisotropy strength of the rock mechanics parameters, the correlation between the rock mechanics parameters and the rock mechanics property influence parameters of the oil and gas reservoir and the correlation of the rock mechanics property influence parameters and the anisotropy strength. By the method, the effectiveness and the accuracy for recovering the oil and gas reservoir rock mechanics underground in-situ model can be improved.

The invention discloses a remote sensing image classification method based on an attention mechanism deep Contourlet network, and the method comprises the steps: building a remote sensing image library, and obtaining a training sample set and a test sample set; then, setting a Contourlet decomposition module, building a convolutional neural network model, grouping convolution layers in the model in pairs to form a convolution module, using an attention mechanism, and performing data enhancement on the merged feature map through a channel attention module; carrying out iterative training; performing global contrast normalization processing on the remote sensing images to be classified to obtain the average intensity of the whole remote sensing images, and then performing normalization to obtain the remote sensing images to be classified after normalization processing; and inputting the normalized unknown remote sensing image into the trained convolutional neural network model, and classifying the unknown remote sensing image to obtain a network output classification result. According to the method, a Contourlet decomposition method and a deep convolutional network method are combined, a channel attention mechanism is introduced, and the advantages of deep learning and Contourlet transformation can be brought into play at the same time.

The disclosure relates to a data access method and apparatus and system, and belongs to the field of communication. The data access method comprises: receiving a data access request sent by a user device; according to the data access request, sending a cache access request to a cache server; receiving data information sent by the cache server, wherein the data information comprises first target data; detecting whether a storage time of the first target data is between a first time threshold and a second time threshold or not; if the first target data is between the first time threshold and the second time threshold, according to the data access request, acquiring second target data in a database; and sending the second target data to the cache server, wherein the cache server is for adopting the first target data stored in the second target data update cache server. According to the data access method provided by the invention, problems of relatively low efficiency and relatively long delay of the data access are solved; effects of improving the data access efficiency and reducing the access delay are realized; and the data access method is used for for the access of page data.

The invention relates to a real-time dynamic 3D water balance monitoring system of a power plant and a working method of the system. The system is characterized by comprising a data collection module, a data transmission module, a data storage module, a monitoring center and a data analysis and application module, wherein the data collection module collects flow data, and the data transmission module returns data collected by the data collection module in real time. Water volume data of different collection points is collected by the data collection module, transmitted to the data storage module by the data transmission module, and further transmitted to the data analysis and application module by the data storage module. The system and method have the advantages that the relation between water volume change and generating load is found via data analysis, the imbalance rate is calculated, and thus, scientific basis is provided for planning water-saving measures of the power plant.

The invention provides a method for retrieving medical information, comprising the following steps of: obtaining matched keywords from a preset keyword sample bank according to input information committed by users; retrieving in a medical information database according to the keywords; and returning retrieving results to the users. With the method, the retrieved information can meet the real demands of the users to the maximum limit, that is to say, the validity of information retrieval is ensured.

The invention discloses a system and method for predicting user behavior in wireless Internet. The system comprises a user behavior data acquisition module which is positioned on a client and is used for acquiring user behavior data within user running time and transmitting the user behavior data to a server, and a user behavior analyzing and predicting module which is positioned on a server side and is used for establishing a user behavior model and analyzing and predicting user behavior according to user behavior data acquired by the user behavior data acquisition module positioned on the client. The method comprises the following steps of: A, establishing a user behavior model; B, acquiring user behavior data within user running time; and C, and analyzing and predicting user behavior according to the acquired user behavior data. According to the technical scheme of invention, the integrity and effectiveness of data can be ensured; and behavior prediction is partitioned into group long-term behavior prediction and individual short-term behavior prediction, so that the correlation between user property and user behavior is fully mined. Comprehensive behavior prediction is performed by using a neural network, so that a prediction result is perfected and made accurate continuously.

A system for matching job hunters with vacant positions and a matching method thereof are disclosed. The method comprises the following steps: storing resumes input through job hunter terminals in a resume databases in a predetermined standardized format; storing position introductions input through recruiter terminals in a position introduction database in a predetermined standardized format; when matching is triggered, performing comparison of matching one to one on a piece of resume information in the resume database with all the valid position introductions in the position introduction database, and placing the position introduction or the resume satisfying conditions in a position matched database or a resume matched database, or performing comparison of matching one to one on a position introduction in the position introduction database with all the valid resumes in the resume database, and placing the resume information or the position introduction satisfying conditions in the resume matched database or the position matched database; and then determining whether the requirements of the resume of a job hunter are in accordance with the requirements of the position introduction of a recruiter in the position matched database, or determining whether the recruiter meets the requirements of the job hunter in the resume matched database, and storing the determination results in a matched state database to find out the recruiter and the job hunter matching with each other in conditions.

An identifying and processing method to signaling data on No.7 signaling link functional layer and a device connected with the No.7 signaling data link includes type identification and error control unit realizing the error control to the signal unit and type identification the types of signal unit, service and information, a content control unit finishing analysis and process to assigned contents, a database storing signaling information altered contents and altered condition information, a data synchronizing unit realizing correction of signaling information changed content and condition and data synchronization with the operation center and the manage interface, an operation and maintenance unit realizing maintenance and test to said device.

The invention discloses a denitrifying strain with nitrifying function, a strain-containing water body improver of multiple active microorganisms and a preparation method of the water body improver, belonging to the technical fields of aquaculture and water body improvement. The strain disclosed by the invention is conserved in the China center for type culture collection (CCTCC), the CCTCC NO isM2011443; and the water body improver of the active microorganisms which is based on the strain comprises multiple strains such as Bacillus subtilis, Bacillus licheniformis, Bacillus pumilus, Bacillus cereus, Bacillus megaterium, Rhodopeudomonas palustris, Arthrobacter globiformis, Rhodotorula rubra and Lactobacillus plantarum. The strain is used to perform liquid fermentation and obtain fermentation liquor of which number of live bacteria is 0.5-3*10<10>cfu / mL, bacterial powder of which the number of live bacteria is 0.2-2*10<12>cfu / mL is further prepared; and the bacterial powder is used along with a diluent to prepare a liquid or powdery water body improver, wherein the effective live bacteria of the water body improver is 0.1-3*10<10>cfu / mL(or cfu / g). The water body improver has the function of reducing the contents of ammonia nitrogen, nitrites and nitrates in the culture water body; and the water body improver is suitable for different culture water bodies and has the function of improving the water quality.

The invention provides a method and a device for correcting dynamic and static rock mechanical parameters. The method includes: measuring rock mechanical parameters of a hydrocarbon reservoir; performing statistics on influencing parameters of rock mechanical properties of the hydrocarbon reservoir; acquiring correlations between the rock mechanical parameters of the hydrocarbon reservoir and the influencing parameters of the rock mechanical properties of the hydrocarbon reservoir; and recovering a hydrocarbon reservoir rock mechanical underground in-suit model, according to the rock mechanical parameters and the correlations between the rock mechanical parameters of the hydrocarbon reservoir and the influencing parameters of the rock mechanical properties of the hydrocarbon reservoir. The method and the device can increase the validity and the accuracy of the recovery of the hydrocarbon reservoir rock mechanical underground in-suit model.

The invention discloses a device for detecting the breakdown of sulfur hexafluoride gas-insulated electrical equipment. The device comprises multiple gas acquisition units. The gas acquisition units are connected with an A / D conversion module (11) wihch is connected with a monitoring and analysis system (12); after SF6 decomposition gas generated from the sulfur hexafluoride gas-insulated electrical equipment is respectively filtered and measured by the gas acquisition units, gas concentration analog signals are obtained, and the gas concentration analog signals are converted to digital signals by the A / D conversion module (11); after the digital signals and the temperature and humidity signals are processed, calculated and analyzed by the monitoring and analysis system (12), a quantitative contrast relationship between the components and concentration of the SF6 decomposition gas and the inner exceptions in the sulfur hexafluoride gas-insulated electrical equipment is obtained to judge the type and the severity of the breakdown and predict development trend of the breakdown; the device for detecting the breakdown is connected with an upper computer by an RS485 or RS232 interface (34) to realize remote communication.

The invention relates to a secondary maintenance safety measure ticket system and a realization method thereof, and relates to the technical field of secondary maintenance safety measures in the direction of intelligent transformer substation secondary operation. The secondary maintenance safety measure ticket system comprises a model data management module, a real-time database, a historical database, a graph editor and an safety measure ticket application module. The realization method of the secondary maintenance safety measure tickets realizes a series of function requirements of secondary maintenance safety measures, such as intelligent ticket simulation, anti-error verification, rehearsal simulation, safety measure ticket management and visual display. The secondary maintenance safety measure ticket system and the realization method thereof solve the problems that conventional manual programmed secondary safety measure tickets are high in difficulty and error-prone and system management is unavailable for the secondary safety measure tickets, the working efficiency of secondary maintenance personnel is improved, the validity and the accuracy of secondary maintenance safety isolation measures are ensured, and the safe and reliable secondary maintenance safety measure implementing technology guarantee and an application system support system are provided for operation, maintenance and reorganization and expansion work of the intelligent transformer substation.