832results about How to "Reduce storage pressure" patented technology

The invention discloses a vehicle driving safety monitoring method, a vehicle driving safety monitoring device and a vehicle driving safety monitoring system. The vehicle driving safety monitoring method comprises the steps of: determining a driving route range between a starting address and a destination address as well as a reasonable time range of arriving at the destination address by a taxi taking server according to the starting address and the destination address contained in a taxi booking request; sending an in-vehicle image acquisition command to vehicle-mounted intelligent equipment if the taxi taking server determines that vehicle position exceeds the driving route range or the vehicle driving time exceeds the reasonable time range according to driving data of a vehicle transmitted by the vehicle-mounted intelligent equipment, so that the vehicle-mounted intelligent equipment acquires in-vehicle image information and transmits the in-vehicle image information to the taxi taking server; comparing the in-vehicle image information acquired in the former period and the later period on the basis of the in-vehicle image information acquired after the vehicle-mounted intelligent equipment responds to the taxi booking request and a passenger gets on the vehicle; and sending alarm information to a safety monitoring server when determining that an unsafe index reaches a preset alarm threshold value, and notifying traffic police near the vehicle to vehicle to check or monitor the vehicle to ensure driving safety.

The invention relates to one wireless sensor network mixture intruding test method, which comprises the following steps: integrating multiple test method based on host machine, network, integration and abnormal mode, wherein, according to wireless sensor network property and outer and inner attack and distributing the test task onto sensor points, cluster point and base station point combined with host machine and network.

The invention discloses a block storage method and a block storage device in a blockchain. The block storage method in the blockchain is implemented by a miner node, and comprises the steps of: packing transaction information in a memory pool into a block; broadcasting first block header information in the block to a blockchain network, wherein the first block header information comprises a block transaction serial number hash value; generating a first hash table corresponding to the first block header information according to the first block header information in the block and transaction serial number information; generating a second hash table corresponding to the first block header information according to the transaction serial number information in the block and transaction content information; and uploading the first hash table and the second hash table corresponding to the first block header information to a distributed storage network. By utilizing the block storage method and the block storage device provided by the invention, the pressure of network transmission and storage pressure of the single node are effectively alleviated.

The invention discloses a file processing method, which comprises the following steps of: encoding a file into a plurality of data blocks by utilizing an erasure code algorithm, and storing the plurality of data blocks in at least two storage nodes which at least comprise storage nodes in a distributed file system; wherein one data block is only stored once; and storing the file index of the file,the respective storage address of each data block in the plurality of data blocks and the hash value related to the file in a block chain network. Therefore, the data redundancy is greatly reduced, higher data reliability is obtained with lower data redundancy, and the utilization rate of the storage space is improved. Moreover, the method adopts a mode of combined storage of the block chain network and the out-of-chain distributed storage system, so that the storage pressure of the block chain network is reduced, and the storage capacity is expanded by introducing the distributed file system. The invention further discloses a file processing device, equipment, a medium and a computer program product.

The invention discloses a hybrid storage system and method for mass intelligent power utilization data. The hybrid storage system comprises a front communication server cluster, wherein the front communication server cluster receives an original data frame uploaded by a terminal and stores an original data film obtained after data analysis is carried out into a local disk; the front communication server cluster unloads the original data frame and the original data file to a MongoDB private cloud storage platform; a collection data unloading calculation platform reads the data of the MongoDB private cloud storage platform to process the data, and then the processed data is stored in a production library and an analysis library of the collection data unloading calculation platform; the production library stores service data, and the analysis library analyzes and processes the service data of the production library; and an analysis result is written back to the production library for query. The invention can cope with challenges brought for the storage capability of a front master station for collecting mass data, the collected data is stored in a local cache, the requirements of quick storage and uniform management of the mass data are met, and the storage pressure of a production database is lowered.

The invention discloses a method and a device for collecting and sending user action information. The method and the device are used for solving the problem of inaccurate information push caused by the fact that storage space of an existing data base is limited. The method includes: determining page view of a user in a period of time according to times of each access action of the user interacted with a server in the period of time for each product category; and determining a second page view of the user for the product category according to a stored first page view of the user for the product catalog, and being capable of determining total frequency of the user accessing the server and access interval so as to determine long-term preference of the user to the product catalog. The scheme can determine the long-term preference of the user, and guarantees accuracy of information supplied to the user. In addition, the data base does not need to save historical data of each user, storage pressure of the data base is reduced, and working efficiency of the data base is improved.

The invention relates to a strong mapping digital twin system based on a virtual imaging technology. According to the system, a multi-information cooperative communication mechanism is established between digital twin bodies, morphological information, state information and behavior information of a physical entity system are collected through multiple sensors and sent to an edge computing node, and the edge computing node is responsible for receiving sensor information and carrying out edge computing processing on the received information; A virtual imaging technology is applied to project digital entities of the digital twin system into a real space in a three-dimensional visualization mode, meanwhile, state information of the physical entities is displayed in a virtual reality mode, thedetail display effect of the digital twin system is enhanced, and the requirements for multi-view observation and immersion experience are met; According to the system, strong information mapping isestablished between a physical entity and a digital entity through the process, and it is guaranteed that information is transmitted between twin bodies in real time at a high speed in an undistortedmode.

The invention relates to a text to speech (TTS) method and system. The method comprises: performing text analysis and linguistic analysis on an inputted text so as to generate front-end scripts comprising corresponding speech units; obtaining, verifying and correcting the front-end scripts; and obtaining the corrected front-end scripts for synthesizing correction speech. By adopting the provided TTS method and system, the errors of the front-end scripts such as word-segmentation errors and polyphone phonetic notation errors can be corrected so that the synthesized speech is more understandable and more user friendly for users, a conventional TTS's shortcomings of insufficient prediction accuracy of rhythm can be overcome, and the synthesized speech is more natural and more expressive.

The invention relates to a washing process for a denim garment. The washing process comprises the following steps: performing bio-enzyme de-sizing treatment in an amylase solution after performing denim garment fabric pre-treatment; performing enzyme washing by neutral enzyme powder; dehydrating and drying after cleaning with clean water; performing monkey wash on the fabric surface; performing neutralization treatment on the fabric which is subjected to monkey wash; adding a softening agent to perform softening treatment on the fabric; cooling the denim garment fabric to room temperature after dehydrating and drying, thereby completing washing on the denim garment. Compared with the prior art, the washing process has the advantages of quickly removing residual manganese ions, shortening the processing time, removing the color of a bleaching liquid, reducing the cleaning frequency, being low in sewage COD (chemical oxygen demand), and the like.

The embodiment of the invention provides a method, equipment and a system for multimedia content distribution. The method includes allowing service nodes to receive a request sent by a terminal and acquire a visit requirement of a first media content; allowing the service nodes to identify the type of the terminal, match a second media content matching with the terminal in types and return to the terminal from each media content stored locally according to the identified type. Each media content stored locally by the service nodes is information, configured by the service nodes according to media content and acquired through multi-format conversion of each original content sent by a CDN content center or acquired from the service nodes transmitted by the CDN content center after multi-format conversion of each original content is performed by the CDN content center according to the media content configured information. By the aid of the method, the equipment and the system, the problems that the existing service is high in computing pressure and storing pressure and low in operating efficiency are solved, and the problems that the media content sent by the service nodes cannot be played and watched normally since the media content cannot match with the terminal in types are avoided.

The invention provides a communication device and a synchronization method and a communication system of a wearable device paired with the communication device. The synchronization method includes the following steps that firstly, a synchronization strategy is set, and the synchronization strategy is the relation of the synchronization method corresponding to the type of content information; secondly, after the main communication device receives the content information, the type of the content information is determined; thirdly, the content information is sent to the wearable device according to the determined type and the synchronization strategy. According to the communication device and the synchronization method and the communication system of the wearable device paired with the communication device, data synchronization between the main communication device and the wearable device can be achieved, in addition, a filtering mechanism is set for synchronization transmission of data, and the data with different content and types can be transmitted according to the manner set by a user, and the manner can be a real-time transmission manner or a time-delay transmission manner. Thus, data receiving and storing pressure of the wearable device is relieved, the standby time of the wearable device is prolonged, and more miniaturized design of the wearable device is promoted.

The embodiment of the invention discloses a multi-application inter-system application method and a system and relates to the field of computer applications. The method comprises the following steps: a first application system carries out synchronous obtainment of log data from a transit server of a second application system; the first application system screens out the log data which meets the binding relationship from the synchronously obtained data of the second application system according to the binding relationship between a user globally unique identifier (GuID) of the first application system and a user identifier ID of the second application system; and the first application system applies the log data according to preset rules. The system comprises a grasping server, a screening server and an application server. The embodiment of the invention provides a new platform for the development of all application systems, reduces the independence on a client, improves the user experience and eases the problem of storage pressure to a certain extent.

The invention discloses a wireless network multi-path routing network transmission method aiming to solve the problem that the existing network coding transmission methods need many time slots, and have too many data transmission times and too high demand for nodes. The main steps of the method are network initialization and data transmission; the network initialization is mainly to determine the level of each node and the neighbor node information and complete networking; the data transmission is that a node judges the zone bits of message packets to perform different treatments to different kinds of message packets, judges the zone bits of the levels of message packets to selectively receive the desired information, judges the local information pool and neighbor information list to select the optimal network coding and performs primary data transmission to complete information transmission and the information transmission of the node. The invention has the advantage of less time slots and data transmission times and lower demand of nodes for network and can be used for multi-user wireless data transmission.

The invention discloses a data encryption method, data query method, a device, equipment and a storage medium. The data encryption method comprises the following steps of acquiring the plaintext keyword of a plaintext file, and establishing the file index of the plaintext file by using a local sensitive hash function based on the plaintext keyword; acquiring a first random user secret key sent bya secret key management center; encrypting the plaintext file and the file index by using the first random user secret key and obtaining an encrypted file and an encrypted index; and sending the encrypted file and the encrypted index to a server end so as to indicate the server end to encrypt the encrypted file by using the first random server end secret key sent by the secret key management center and forming a ciphertext file, wherein the first random user secret key is associated with the first random server end secret key. By using the data encryption method, system storage pressure is reduced and data safety is increased.

The invention discloses a method and device for generating animation data. A specific implement mode of the method comprises the following steps: obtaining a target motion parameter of at least one target animation segment in target animation to be generated; after mapping the target motion parameter to be vector matched with input of a pre-trained radial basis function neural network model, inputting to the radial basis function neural network model; identifying each component in the vector output by the radial basis function neural network model as fusion weighting coefficient of each sample animation segment in the sample animation segment sequence; according to the fusion weighting coefficient, using animation data of each sample animation segment in the sample animation segment sequence to execute the fusion, and obtaining the animation data of the target animation segment; and based on the animation data of at least one target animation segment, generating the animation data of the target animation. The implement mode is capable of realizing the automatic generation of the animation data.

The invention discloses a device for preparing, storing and feeding vehicle-mounted hydrogen / oxygen and a control method thereof, particularly relating to prepare, store and feed the hydrogen and the oxygen on a vehicle. In the system, based on reserving an engine storage battery, a vehicle-mounted hydrogen and oxygen preparing device, a hydrogen and oxygen storing device, a hydrogen and oxygen preparing, storing and electronicaly control unit are increased, wherein, according to an accumulator voltage signal, and a hydrogen and oxygen storage tank pressure signal, the electronicaly control unit controls opening and closing of a hydrogen and oxygen preparing machine switch relay, an oxygen tank unidirectional gas discharging valve, an oxygen supply linear solenoid valve and a hydrogen supply pipeline solenoid valve, thus realizing the preparation, storing, feeding, and controlling of the hydrogen and the oxygen on the vehicle. The system has the advantages of realizing the preparation and storing of the hydrogen and the oxygen on the vehicle, ensuring that the vehicle can utilize the hydrogen and the oxygen prepared by the system in the last-time operation when in cold starting, so as to realize the starting of pure hydrogen or pure hydrogen-oxygen gas mixture for the increasing of the hydrogen and oxygen storing device, thereby greatly reducing HC and CO emission when a gasoline engine is started.

The invention discloses an anonymous cross-domain recommendation method based on block chain technology, A technology base on block chain adopts heterogeneous multi-link data structure to carry out data storage, Users, merchandise and transaction relationship data are stored on users, merchants and platforms respectively. Transaction relationship does not store specific user and commodity information. Recommendation center can only obtain the relationship chain stored by each platform to ensure that an attacker cannot associate a user with a commodity. Aiming at the cold start problem caused by data sparseness, the invention performs data aggregation and similarity calculation based on accurate transaction data, and adopts a mixed recommendation strategy based on users and commodities to perform cross-platform recommendation, so as to achieve a safe and accurate win-win recommendation effect.

The invention discloses a statistical analysis method for secret key leakage resisting encrypted data aggregation in a smart power grid. Each user area is responsible for one fog node; the fog node serves as a data aggregation gateway and a data repeater; user electric energy consumption data sent by an intelligent electric meter in a user area is aggregated for the first time by a fog node to obtain a fog-level aggregation ciphertext, the fog-level aggregation ciphertext is signed, and then the fog-level aggregation ciphertext and signature information are sent to a cloud server to be stored;the cloud server stores the aggregated ciphertext data and the signature information of different user areas in a database; data query, statistics and analysis services are provided for a control center of the intelligent power grid system; the cloud server can provide enough information for the control center on the premise of not destroying the privacy of any single user, so that the control center can calculate the sum, average value and variance of power consumption data of all users in a specified user area by utilizing the information.

The invention relates to the field of financial technology. The invention further discloses a block chain data sharing method and device. The method comprises the steps that a sharing mechanism obtains a first file, determines a hash value of the first file, determines an exchange public key corresponding to the first file, and the exchange public keys of the plurality of first sharing mechanismsare obtained, an encryption key is determined according to the exchange public key corresponding to the first file and the exchange public keys of the plurality of first sharing mechanisms, the firstfile is encrypted by using the encryption key to obtain an encrypted ciphertext of the first file, and the encrypted ciphertext is sent to the data sharing smart contract of the block chain. Due to the fact that the exchange public key corresponding to the first file is obtained through the private key and the index number of the sharing mechanism, different exchange keys can be generated for different files under the condition that the private key of the sharing mechanism is not changed, and user privacy can be protected flexibly, conveniently, safely and effectively. And the encrypted file is sent to the block chain, so that real chaining of the encrypted file is realized, and real data sharing is realized.

The present invention relates to a gas-storage power plant, comprising a gas reservoir (8) in which a gas can be stored under pressure, a turbogroup (2) which has at least one turbine (3, 5), a gas-supply line (9) which leads from the gas reservoir (8) to the turbogroup (2), and a valve arrangement (12) which is arranged in the gas-supply line (9) and throttles a storage pressure (PS) applied on the inlet side to a working pressure (PA) by closed-loop and / or open-loop control. In order to improve the reliability of the valve arrangement (12), it has at least two control valves (13, 14) arranged in series. A leading first control valve (13) throttles the storage pressure (PS) applied on the inlet side to an intermediate pressure (PZ) by closed-loop or open-loop control. A subsequent second control valve (14) throttles the pressure (PZ) applied on the inlet side to the working pressure (PA) by closed-loop control.

The invention discloses a unified authentication system and a login method. The system comprises a login authentication and authorization management system which is connected with a TICKET server through a service interface module. The method comprises the following steps: a user inputs a user name and a password to enter; if being a legal user, a user terminal produces local session, generates an authentication mark and stores the mark in the user terminal; the TICKET information in the local session is stored in the TICKET server; and when the user accesses a subsystem, the subsystem acquires the TICKET information from the TICKET server according to the authentication mark acquired from the user terminal so as to judge whether the user has right to access the subsystem. In the invention, in the case of subsystem access, the user does not need to carry out any other operation in addition to input the user name and the password, thus being very convenient; and in the case of huge user access quantity, the TICKET server in the system does not become a system bottleneck.

The invention provides an expressway vehicle detection and multi-attribute feature extraction method based on a local image, and relates to the technical field of intelligent transportation. A video acquisition terminal reads expressway monitoring video in real time and transmits the expressway monitoring video to an edge end, and the edge end analyzes the real-time video data by adopting a background difference method to select a key frame; a cloud end uses a VOC2007 data set and vehicle pictures collected by an expressway to train a YOLO-v3-tiny detection model, the edge end loads the trained YOLO-v3-tiny detection model to predict the position of a vehicle bounding box in the selected key frame, and then a local image of a vehicle is obtained and transmitted to the cloud end; a ResNet-50 residual neural network model is trained by the cloud end by utilizing the training set data with the multi-label type, the edge end loads the trained ResNet-50 residual neural network model, and the acquired local image of the vehicle is input into the neural network model to realize the extraction of multi-attribute features of the vehicle; and the extracted multi-attribute features of the vehicle are made into a label, and the label is uploaded to the cloud end.

The invention relates to an area-fixed edge computing system and a method for heterogeneous city internet of things, belonging to the technical field of the internet of things. The method comprises the following steps: S1, dividing the area into a plurality of virtual internet of things small grids according to the distribution density and position of GIS information and sensors in a specific areaof the city; S2, set at least one calculation point in each small mesh to be edge calculated, capture various sensor data in that small mesh, decoding the sensor data, calculating and screening out effective information, store, encrypting and uploading the information to a computing station; S3, combine a plurality of small grids into an enlarged grid, and arrange a computing station with multiple information sending and receiving and high computational power, picking up that uploading information of the computing points under the jurisdiction, classifying, analyzing and calculating, and deeply fusing heterogeneous information to generate imperceptible new information; S4: Upload the new information to the background server and download it to the application side. The invention converts the calculation of the edge into the calculation of the stationary type of the regional center, and improves the practicability and efficiency of the calculation of the edge of the urban internet of things.

The invention relates to a photo processing method and a photo processing device. The method comprises the steps of grouping to-be-processed photos according to preset rules, detecting the quality of each group of to-be-processed photos to get the quality level of the group of to-be-processed photos, and storing the to-be-processed photos according to the quality level. By implementing the technical scheme, the storage space of a terminal or server is saved, and the storage pressure is reduced. Meanwhile, photos of high quality are screened out accurately for users, and the photos of high quality can be stored accurately and completely.

The invention discloses a method and a system used for relieving a node storage pressure, which relate to the technical field of digital currency and are used for relieving the node storage pressure on the premise of ensuring that sources of unspent transaction outputs can be verified. The method used for relieving the node storage pressure comprises the steps of S1, confirming a ratio of unspent transaction outputs in all blocks lower than a specific block; S2, comparing the ratio of the unspent transaction outputs with a specific ratio; S3, when the ratio of the unspent transaction outputs is smaller than or equal to the specific ratio, initiating multi-time automatic transfer-in transactions, wherein the automatic transfer-in transactions are in one-to-one correspondence with the unspent transaction outputs; and S4, deleting the blocks from which the unspent transaction outputs are transferred. The method and the system are applied to a digital currency transaction process.

The invention discloses a dry separation method of manganese carbonate ore. The dry separation method comprises the following steps: feeding raw manganese carbonate ore into a crushing system for crushing; screening the crushed ore through a double-layer dry-type screening system; according to the screen hole size of the screening system, performing coarse-fraction magnetic separation on the screened ore through a coarse-fraction dry-type magnetic separation system to obtain coarse-fraction concentrate and middling, and performing fine-fraction magnetic separation on the screened ore through a fine-fraction dry-type magnetic separation system to obtain fine-fraction concentrate and tailings, wherein the obtained middling is returned to the crushing system. The dry separation method has the beneficial effects that (1) the process flow is simplified, the ore separation efficiency is improved, and the recovery rate of manganese ore is improved; (2) on the basis of cost reduction, the grading index of concentrate grade is not reduced; (3) energy is saved, consumption is reduced, clean production is realized, and economic benefits are improved; (4) overflowing is avoided, the storage capacity pressure of a tailings pond can be released fundamentally, and meanwhile, final manganese carbonate tailings (waste sands) can be applied to paving or brick-making after being treated.

The invention relates to an urban heterogeneous Internet-of-things edge computing system and method set according to management department categories, and belongs to the technical field of Internets of things. The method comprises: A1, according to the management department categories of public and private sectors and distribution and trends of managed facilities or soil and water and environments, setting computing points along a line at positions at an interval of distance d, and setting computing stations at an interval of distance 5d-10d; A2, aggregating sensor data, which are required forcomputing point attachment computing, by the computing points, carrying out decoding computing thereon, screening out valid information, storing the same, encrypting the same, and uploading the sameto a computing station; A3, aggregating information of all the computing points in a jurisdiction by the computing station, classifying the same, and carrying out heterogeneous information fusion; andA4, encrypting the fused information, uploading the same to a background server, and issuing a driving command to an actuator corresponding to a relevant calculation point, or directly sending the same to an application terminal. According to the method, edge computing is conversed into central point station computing set according to the management categories, and edge computing in an urban Internet of things is more clearly and efficiently carried out.

The invention discloses a maneuvering target radial acceleration and speed estimation method based on an orthogonal match pursuit, belonging to the field of radar signal processing. According to the maneuvering target radial acceleration and speed estimation method, a radial acceleration and a radial speed of a high-speed and large-maneuvering target can be rapidly accurately determined, the tracking performance and the recognition capability of a radar to the high-speed and large-maneuvering target are effectively improved, the response time of a weapon system is increased, and the attacking capacity to the target is enhanced. The maneuvering target radial acceleration and speed estimation method provided by the invention comprises the following steps of: 1, sampling a signal received by a radar, establishing a complete atom library; 2, carrying out orthogonal match pursuit decomposition on the signal; and 3, searching a sparse solution energy diagram peak value, determining a radial acceleration and a radial speed of the signal according to peak value coordinates. The maneuvering target radial acceleration and speed estimation method has the advantages of high instantaneity, accuracy in radial acceleration and speed estimation, easy realization of engineering, stronger engineering application value and popularization prospect, and can be used in the fields of improving high-maneuvering target real-time accurate pursuit and radar target type recognition, and the like.

The invention discloses a hybrid digital eye ground image recording and sharing system based on a blockchain. Through a blockchain technology, eye ground images are stored and shared in a distributedmode. For a current state that chronic disease patients in a current community and a remote area can not receive regular eye ground examination, a portable digital eye ground lens is used to achieve patient eye ground image acquisition, complete eye ground standardization image format conversion work, and store in an eye ground mage transmission and storage system. And then, image fingerprint characteristic extraction is performed and an image address is encrypted to the blockchain for recording. And through applying an intelligent contract, an eye ground image can be shared after the authorization of each patient. Through applying the blockchain technology, the patient has the initiative of sharing the eye ground image data of the patient himself or herself, and a workflow that the eye ground image is stored in a dispersive system and is difficult to share is improved. Through data encryption and an eye ground image recording block, safety and a data anti-tampering characteristic in amedical data sharing process can be effectively increased, and the eye ground image is safely recorded and is effectively used.

The embodiment of the invention discloses a data storage method, a device and a system and relates to the field of computers. The problems that a server of cloud services is high in storage pressure and high in storage cost are solved. The data storage method comprises receiving a storage instruction; compressing the stored data; and finally storing the compressed stored data into a storage medium. The data storage device comprises an instruction acquisition unit used for receiving the storage instruction, a data compression unit used for compressing the stored data, and a data storage unit used for storing the compressed data to be stored into the storage medium. The data storage method, the data storage device and the data storage system are mainly applied to a computer system.