262results about How to "Realize dynamic update" patented technology

The invention relates to an energy-saving control system and control method of a central air conditioning freezing station. The control system is an energy conservation system with a self-learning function, and comprises a relational database, an energy consumption self-optimization controller, a rolling optimization controller, a signal acquisition control cabinet, a cooling tower control cabinet, a cooling pump control cabinet, a refrigeration pump control cabinet, and a plurality of sensors. Through relational database modeling for each main current consuming device in the central air conditioning freezing station and rolling optimization of the relational database, energy consumption associated information of each main current consuming device is obtained, and through further energy consumption self-optimization course, an optimization parameter of the operation of devices in the freezing station is obtained, thus the integral central air conditioning freezing station operates at a high-efficient and energy-saving state.

The invention discloses a hovering prompting system which comprises a server and at least one client. The server is used for storing hovering prompting information; the client is connected with the server through a network; the client comprises a hovering signal triggering module, a hovering prompting information acquiring module and a hovering prompting information displaying module; wherein the hovering signal triggering module is used for triggering a hovering signal when a cursor stops for a long time which exceeds a predetermined value in a predetermined area; the hovering prompting information acquiring module is used for acquiring the hovering prompting information which corresponds to the predetermined area from the server according to the hovering signal; and the hovering prompting information displaying module is used for displaying the hovering prompting information in a popup window. The invention also discloses a hovering prompting method. With the adoption of the hovering prompting system and the hovering prompting method, the dynamically upgraded information prompting function or the tool prompting function can be realized.

The invention relates to a method of clipping and drawing, in particular to an integrated batch drawing method of a remote-sensing image and vector data. The integrated batch drawing method is characterized by comprising the following steps: step 1, a plurality of images and a plurality of layers of vector elements in a target area are loaded; step 2, drawing measuring scale is chosen, all map sheets coated by the target area are calculated and listed in table; step 3, loaded images and vectors are displayed in an overlapping mode, data outsourcing bounding boxes and sheet grids are drawn, a to-be-clipped map sheet is chosen in a visual interactive mode; step 4, a drawing moldboard is made, drawing whole decorative elements such as an image title, a map sheet place name, measuring scales and a compass are set; step 5, the images and the vectors are clipped in an integrated batch mode; step 6, batch drawing is signified based on a symbol library, and graphic symbols are generated automatically after the signifying; and step 7, the drawn map is outputted. The integrated batch drawing method of the remote-sensing image and the vector data improves the working efficiency of standard amplitude selection drawing.

The invention discloses a POS machine secret key remote downloading service system and secret key downloading method, and relates to the technique of POS machine information security. The whole scheme comprises seven components of a POS machine terminal, a security chip, a communication module, a random number generator, a secret storage region, a background server and an encryptor; wherein the security chip, the communication module, the random number generator and the secret storage region are contained in the POS machine terminal; the background server is directly connected with the encryptor; the POS machine terminal builds a remote communication channel with the background server through the communication module; and three stages of bidirectional authentication, master secret key issuing and working secret key issuing are successively finished. According to the system and the method, the features that the conventional POS machine secret key downloading method is low in efficiency, low in flexibility and difficult in secondary updating are overcome; the security demand is taken into consideration; high secret demands of one machine one key and one day one key are satisfied; the POS machine secret keys are dynamically updated; and the system and the method are applicable to remote use and rapid deployment of the POS machine.

The invention relates to a method for the distribution of an encryption key and the online innovation of a public key, which comprises the steps that: (1) a first entity produces a temporary public and private key pair; (2) a communication conversation encryption key exists between the first entity and a second entity; (3) an encryption key distribution center locally stored is utilized to carry out the signature verification of the public key; (4) the second entity produces a temporary public and private key pair; (5) a encryption key response message is formed and returned to the second entity; (6) the encryption key distribution center locally stored is utilized to carry out the signature verification of the public key; (7) the communication conversation encryption key is utilized by the first entity and the second entity to serve as a conversation encryption key to carry out secret communication. The method proposes a method that safely distributes communication encryption key to each pair of entity, causes the encryption key to have PFS property and lowers the complexity of the encryption key management of the system, and also supports the online innovation function of a public key of the encryption key distribution center which is the trusted third party.

The embodiments of the present invention disclose a network slice identifier update method. The method includes the following steps that: a slice ID (identifier) stored in a terminal is required to be updated, a slice ID which is currently available to the terminal and is provided by a storage network element are received, wherein the slice ID is the identifier of a network slice; and a control plane signal carrying the currently available slice ID is sent to the terminal, wherein the control plane signal is a control instruction for controlling the terminal to perform corresponding operation. The slice ID (identifier) stored in the terminal is updated through the control plane instruction, and therefore, on the one hand, dynamic update can be realized, and on the other hand, a special client is not required to be installed. The embodiments of the invention also disclose a network element and a terminal.

The invention provides a bus passenger capacity collection method based on locating information. By means of bus GPS locating and mobile phone locating, the serial number, the position, the speed, the direction and the time information of a bus and the serial number, the position, the speed, the direction and the time information of a mobile phone are collected regularly on a bus line. A data center carries out data filtering preprocessing on the speed information in the data to obtain an information set of the bus and mobile phone information between two bus stops. The data center carries out clustering analysis on the subset of the information set of the bus and mobile phone information to obtain initially collected mobile phone number set of the passengers in the bus. The data center carries out data screening on the initially collected mobile number set to obtain the number of the mobile phones of the passengers in the bus finally, and namely the number of the mobile phones of the passengers in the bus is the bus passenger capacity. The bus passenger capacity collection method based on the locating information provides dynamic and real-time collected data of the bus passenger capacity for a public traffic system in a transportation information service system, the information acquisition channel is low in cost, information updating is timely and reliable, and the method has important significance for the transportation information service system.

The invention provides a vehicle-mounted lithology and unfavorable geological precursor characteristic identification system and a method thereof. The vehicle is used for carrying a navigation positioning module, a rock element testing module, a rock sampling module, an automatic rock sample grinding module, a rock mineral testing module and a control and data analysis module, wherein the rock sample sampling module and the grinding module can automatically grind the sample required by the test, the rock element testing module and the rock mineral testing module can test the rock element and mineral content, and the control and data analysis module compares the element and mineral enrichment rules of the unfavorable geological influence area inside and outside the tunnel, and matches the result with typical unfavorable geologic body elements and mineral enrichment characteristic database to forecast the lithology change in front of the tunnel face and the occurrence characteristics ofunfavorable geologic bodies.

The invention belongs to the technical field of hidden trouble prediction and management for trees in the channel of an overhead transmission line and specifically relates to a tree obstacle hidden trouble automatic pre-warning system for an overhead transmission line and a pre-warning method for the above system. The method comprises the steps of carrying out the field survey to conduct the data statistics on the hidden troubles of trees in an overhead transmission line protection zone and construct a hidden trouble database for trees in the channel of an overhead transmission line; conducting the traversing treatment on all trees in the tree hidden trouble database at regular intervals; for any tree with a hidden trouble, calculating the current distance between the tree and a corresponding conductive wire, judging the type of the tree hidden trouble, automatically pre-warning, dynamically evaluating the risk of the hidden trouble according to provisions on the safe operation of the overhead transmission line, and dynamically updating the hidden trouble data of the tree in real time. According to the invention, the problem that existing tree obstacle hidden trouble-shooting methods are time-consuming, labor-consuming and easily cause the artificial misjudgment can be solved. Meanwhile, the pre-warning information is provided timely. The damage to both the personal safety and properties, due to the occurrence of tree obstacle hidden hazards, can be prevented.

The invention provides a method for road one-way restriction and traffic state identification based on floating car technology, which is characterized in that a larger number of floating cars equipped with GPS and other vehicle-mounted positioning systems periodically acquire and then return the information related to automobile number, position, direction and speed to a data center in the process of traveling, the information is filtered to obtain road traffic data and extract a dynamic first characteristic factor of road one-way restriction and traffic, the system performs data digging on a road traffic database simultaneously in order to obtain a statistical second characteristic factor of road one-way restriction and traffic in relevant time window, and the system can identify the road one-way restriction and traffic state automatically by matching the first characteristic factor with the corresponding second characteristic factor. The method of the invention can provide dynamic and accurate information related to the change of road one-way restriction and traffic state for various traffic information service systems, has the advantages of low cost in acquiring information and timely and reliable information updating, and is significant to various traffic information service systems.

The invention discloses a terminal capability reporting method, a base station and a terminal, wherein the method comprises the steps of: receiving terminal air interface capability information sent by the terminal after being successfully attached to a core network; according to the terminal air interface capability information, determining the first terminal air interface capability of the terminal; according to the determined terminal air interface capability, updating the second terminal air interface capability, wherein the second terminal air interface capability includes the terminal air interface capability reported by the terminal in a core network attaching process; and using the updated terminal air interface capability, wherein the terminal air interface capability sent by theterminal after being successfully attached to the core network is different from the terminal air interface capability reported by the terminal in the core network attaching process. According to theembodiment of the invention, after the terminal is successfully attached to the core network, when the terminal air interface capability needs to be changed, dynamic updating of the terminal air interface capability can be realized without interruption of terminal services; furthermore, the energy consumption of the terminal can be saved; and the load of the terminal can be reduced.

The invention provides a video semantic analysis method based on a self-adaption probability hypergraph and incremental semi-supervised learning. The video semantic analysis method based on the self-adaption probability hypergraph and the semi-supervised learning comprises the steps that (S1) a hypergraph model is established by means of a self-adaption probability hypergraph establishment method, (S2) the semi-supervised learning is conducted on the hypergraph model by means of the spectrogram segmenting principle, (S3) a semi-supervised model based on the self-adaption probability hypergraph is perfected by means of an increment mechanism, and (S4) semantic analysis is conducted on a tested video by means of the perfected hypergraph model. According to the video semantic analysis method based on the self-adaption probability hypergraph and the semi-supervised learning, the establishment of the self-adaption probability hypergraph and an incremental semi-supervised learning method are combined for use, the sensibility to a radium parameter when an ordinary hypergraph model is established is eliminated, and the accuracy and the robustness of the model are improved; in addition, under the incremental semi-supervised learning mechanism, semantic searching accuracy and semantic searching completeness are improved remarkably.

The invention discloses a rolling bearing modeling and model updating method and system based on digital twinning. The method includes using a sensor for monitoring operation data of a rolling bearing in real time and preprocessing the operation data; carrying out coupling modeling to obtain a dynamically updated digital twin model; inputting the normalized operation data into a digital twinborn model in real time, performing simulation calculation on output data of the rolling bearing by using the digital twinborn model, comparing simulation data of the digital twinborn model with the operation data in a corresponding time interval, and if a residual sequence is white noise with a zero mean value, collecting a corresponding rolling bearing digital twin model; otherwise, adjusting and correcting the parameters of the rolling bearing digital twinning model according to the criterion function to obtain a real-time synchronous rolling bearing digital twinning model. The invention can reflect the time history of the health state of the bearing, and provides a basis for fault diagnosis and life prediction of the rolling bearing.

An embodiment of the invention provides a method and a device for dynamic update of access control policies. The method includes that a master control system acquires the access control policy corresponding to a current application scene from a cloud server after detecting that a previous application scene changes; the master control system subjects the acquired access control policy to legality validation; when a result of the legality validation is legal, the master control system sends the acquired access control policy to a core; after receiving the access control policy, the core updates the access control policy corresponding to the previous application scene stored in the core so as to control access to a container system according to the access control policy corresponding to the current application scene. The method is capable of dynamically updating the access control policies on the basis of guaranteeing safety of the master control system, the core and the access control policies, so that classified information in terminal equipment can be protected and the access control policies can be updated conveniently.

The invention discloses a dynamic searchable public key encryption method, belonging to the technical fields of cryptography and cloud storage. According to the method, functions of generation, retrieval and dynamic updating of ciphertext data in a cloud storage system under a public key encryption mechanism are realized. A sender encrypts key words of a file to generate a searchable ciphertext for (ID, W), a to-be-uploaded file is encrypted to generate a cipertext file with a file ID, and lastly, the searchable ciphertext and the cipertext file are uploaded to a server together. A receiver submits a trap door of a to-be-searched key word W to the cloud storage server, the cloud storage server carries out retrieval to obtain a corresponding searchable ciphertext, the searchable ciphertext is further decrypted to obtain a relevant file ID, and the corresponding cipertext file is found according to the file ID and is returned to a user. The receiver submits a trap door of a to-be-deleted file ID to the server, the server retrieves a cipertext index according to trap door information in order to obtain a corresponding searchable ciphertext index, and then the searchable ciphertext index and the cipertext file corresponding to the file ID are deleted.

The invention provides a target arrival angle estimation method based on spatial discrete grid dynamic update, and belongs to the technical field of array signal processing. The target arrival angle estimation method is mainly for solving the problem of spatial discrete grid mismatch faced in the DOA estimation process on an array signal processing problem. Eigenvalue decomposition is performed ona signal sampling covariance matrix, through a basis pursuit method, a discrete point closest to a real angle is found, then the discrete grid points are dynamically updated by iteration, so that thediscrete grid points continuously approach a true DOA value of a target, and accurate estimation of multiple target arrival angles is carried out. The target arrival angle estimation method based onthe spatial discrete grid dynamic update effectively solves the problem of the spatial discrete grid mismatch by using a spatial discrete grid dynamic learning method, so that the algorithm can quickly estimate the DOA and keep a quite high target estimation accuracy even if the step size of a spatial discrete grid is large.

The invention discloses a method for updating a Java Card system component based on a memory management unit (MMU) framework. The method comprises card outside operation and card inside operation and is characterized by comprising the following steps of: 1) providing a code modified item list by comparing a modified engineering code and an original engineering code; 2) searching virtual address entries and binary lengths of items in a target file from the code modified item list, and providing a system component updating task list; 3) combining the items, of which virtual addresses are close, in the system component updating task list to generate a card inside MMU modified information sheet and code actual binary modified information sheet; 4) transmitting code modified data, writing updated code data into a card inside electrically erasable programmable read-only memory (EEPROM) and performing system call on a new address of the updated code data in the card inside EEPROM after the new address serving as a parameter is processed; and 5) authenticating the updated code data by a card inside operating system, if the updated code data passes through the authentication, modifying a translation lookaside buffer (TLB) initialization table of an MMU and restarting the card inside operating system for initialization.

The invention discloses a wind field equivalence modeling and optimal control method based on a fuzzy c-means clustering algorithm. The method comprises steps: the number c of classes in the clustering algorithm is determined; the mean output power, the output power standard deviation, the inertia time constant, the longitude, the latitude and the height of a wind turbine are selected as clustering elements in the clustering algorithm for analysis; the above parameters are pre-processed to obtain a characteristic matrix of the wind turbine; a clustering distance and an objective function are determined; the wind field is subjected to the fuzzy c-means clustering algorithm to obtain a wind field equivalence model; a virtual wind turbine in the wind field equivalence model is subjected to parameter aggregation; the output power of the virtual wind turbine is optimized; and at each preset time interval, the above steps are repeated, the parameters are updated, and according to the updatedparameters, the output power of the virtual wind turbine is optimized. The actual operation state of the wind field can be reflected accurately while the wind field model is simplified, and the calculation process is relatively simple and easy to realize.

The invention relates to a method and a system for realizing streaming media packet loss retransmission. The method comprises the following steps that: a transmitting end transmits retransmission configuration information through a transmission mode as same as that of a media code stream, and the retransmission configuration information comprises a feedback standard identification and a retransmission standard identification; a receiving end receives and configures the retransmission configuration information; the receiving end configures and transmits a packet loss feedback message according to a cached retransmission configuration information when detecting packet loss; the transmitting end configures and transmits a retransmission packet according to the retransmission configuration information after receiving the packet loss feedback message; and the receiving end receives the retransmission packet according to the cached retransmission configuration information. According to the method and the system for realizing streaming media packet loss retransmission, the reliability of streaming media transmission can be improved.

The invention relates to a white-box password operation method and system. The method comprises the following steps of generating a plurality of white-box lookup tables, and sending all white-box lookup tables to a preset terminal for storage; acquiring first information sent by the preset terminal and encrypted according to all white-box lookup tables, and a unique identification code of the preset terminal; obtaining a secret key according to the unique identification code and a pre-stored mapping relation; and decrypting the encrypted first information according to the secret key. Accordingto the white-box password operation method and system, which are provided by the invention, rapid updating of a white-box password in the terminal equipment can be effectively realized, the secret key in the terminal equipment does not maintain the unique secret key after delivery, and the safety is further improved.