972results about How to "Save storage space" patented technology

The invention provides a block chain data management method and system, and relates to the technical field of block chains, and the method comprises the steps: receiving and preprocessing an electronic file; encrypting the archive by using a public key and calculating a hash value; packaging the encrypted file and the hash value into a block chain transaction and broadcasting the block chain transaction; acquiring block information and safely storing the private key; verifying the integrity of the electronic file; recording a full life cycle operation log; the log is stored in an on-chain and off-chain combined mode; auditing the electronic file; and realizing access authority automatic management based on the intelligent contract. According to the method, the security, traceability and management efficiency of the electronic archives are improved.

The invention discloses an intelligent bid evaluation expert extraction and management system, and relates to the technical field of expert extraction systems. Comprising a data cleaning and compression module, a database logic and table relation design module, an expert information collection standard and automation module, an information real-time updating and principal management module, an extraction algorithm design module, a safety and authority management module and a real-time monitoring and auditing function module. Through a self-adaptive sparse auto-encoder and a dynamic clustering technology in the data cleaning and compression module, abnormal values in a bid evaluation expert database can be detected and cleaned, data compression is performed by adopting a self-adaptive dictionary coding algorithm, and the storage efficiency and query performance of the database are improved; based on a multi-modal information fusion and reinforcement learning method, accurate collection, dynamic updating and intelligent management of expert information are realized. The randomness and fairness of the bid evaluation expert extraction process are ensured by using a mode of combining deep reinforcement learning and a quantum random number generator in an extraction algorithm design module.

The invention relates to the technical field of pipe inner wall polishing, in particular to a plastic pipe inner wall polishing device. Comprising a sliding ring slidably arranged on a mounting cylinder, the right side of the sliding ring is connected with an air inflation bag, the right end of the air inflation bag is connected with the mounting cylinder, a fixedly-arranged second electric push rod and a slidably-arranged air pump are further fixedly mounted on the mounting cylinder, and the telescopic end of the second electric push rod is connected with the sliding ring. And a connecting pipe is communicated between an air outlet of the air pump and the inflatable bag. The movable part, the telescopic polishing block and the concentration mechanism are arranged and jointly assist to achieve adaptive adjustment of different pipe diameters, in addition, the inwards-concave inflatable bag is designed, so that the pipeline is adjusted and attached in a matched mode, abrasive dust is efficiently pushed out, the flexibility and adaptability of the equipment are enhanced, and the service life of the equipment is prolonged. And cleaning and polishing are integrated, so that the device can be operated more easily, and the overall using effect and working efficiency of the device are improved.

The invention relates to the technical field of artificial intelligence, in particular to a model construction method for a GUI agent, a program product and a storage medium, and the model construction method for the GUI agent provided by the invention comprises the following steps: performing pre-training based on a general data set in the GUI field to obtain a base model; a user demonstration operation track is collected online, and a personalized task execution track is obtained; automatically labeling the task execution track to obtain a labeled track; performing task planning training on the base model based on the marked track to obtain a scene planner, and combining the base model and the scene planner to obtain a personalized model; based on the plug-in scene knowledge base, corresponding scene knowledge is retrieved as context supplement during personalized task action planning. The task execution track is automatically labeled, a large model is guided to actively label and understand thinking in human execution operation, the next behavior is further planned, and the adaptive capacity of a GUI intelligent agent to the personalized use environment of a user is greatly improved.

The invention discloses a three-phase permanent magnet synchronous motor full-speed-domain driving control system and a control method thereof. The system is composed of a torque limiting module, a full-speed-domain control neural network module, a current control module, a coordinate transformation module-I, a coordinate transformation module-II, a coordinate inverse transformation module, an SVPWM module, a SiC MOSFET driving module, a full-speed-domain position rotating speed observation module, a weak magnetic feedback module and a three-phase permanent magnet synchronous motor. The control method is used for driving the control system. According to the method, accurate tracing of the optimal dq-axis reference current working point is realized based on deep learning, and accurate control of three operation modes of MTPA, field weakening control and MTPV is realized; an improved mobile vision field estimation algorithm is adopted, and the rotor position and the rotor rotating speed are accurately estimated within the full-speed domain range; the SiC MOSFET is used as an inverter switching tube, and a brand new drive circuit is designed to adapt to the operation condition of the electric vehicle.

The invention discloses a data verification method, device and equipment and a medium, and belongs to the technical field of digital verification, and the method comprises the steps: receiving to-be-verified data information; creating a target basis matrix, and performing short ring and trap set elimination optimization on the target basis matrix; encoding the data information to be verified through a fast encoding algorithm; and performing data verification on the encoded to-be-verified data information through the optimized target basis matrix. According to the basis matrix provided by the invention, the storage space of the check matrix can be reduced, the performance of the check matrix can be improved, and meanwhile, the digital channel can be quickly checked.

The invention relates to the field of battery SOC estimation, and discloses a lithium battery SOC estimation method based on dynamic voltage, which is applied to low-end SOC estimation, and comprises the following steps of: calculating a dynamic voltage value according to polarization voltage change generated along with temperature change and current change of a lithium battery calibrated by a discharge OCV curve to obtain a dynamic discharge voltage-SOC curve table; therefore, SOC estimation is carried out according to the currently acquired cell voltage value. The invention also discloses a lithium battery SOC calibration device which comprises a cell monitoring and signal acquisition part for monitoring the voltage, current and temperature of the cell and a processor, and when the SOC is lower than a certain threshold value, the processor adopts the lithium battery SOC estimation method based on the dynamic voltage to correct and calibrate the low-end SOC estimated value of the lithium battery. When iteration continuous judgment is corrected, errors can be effectively avoided, SOC correction is more accurate and reliable, and a guarantee is provided for safe and stable operation of the battery cell.

The invention relates to the technical field of Internet of Things, in particular to an Internet of Things intelligent linkage control method and an Internet of Things intelligent linkage control device, and the method comprises the steps: S1, obtaining the working state of home equipment and the real-time data of environment information, and transmitting the real-time data to a central control platform; s2, preprocessing the real-time data to obtain preprocessed data; s3, analyzing the preprocessed data, and generating a corresponding linkage control instruction; s4, encoding the linkage control instruction to generate encoded data, and performing lossless compression on the encoded data by adopting a ZSTD compression algorithm to obtain a compressed code; s5, searching an optimal sending communication network by adopting a flora optimization algorithm, and sending the compressed code to the home equipment; and S6, the home equipment decompresses the compressed code by using an LZMA compression algorithm, and executes the linkage control instruction. According to the invention, the ZSTD compression algorithm and the flora optimization algorithm are adopted, the delay of data transmission and processing is significantly reduced, the overall response speed of the smart home system is improved, and the user experience is better.

The invention discloses a character string data read optimization method based on a B + tree and a learning index. A learning index generated based on a machine learning (ML) model focuses on integer data of a fixed size, but is lack of consideration for character strings of variable lengths and is poor in performance in character string data. In order to solve the problem, the invention provides a character string slicing method which can convert a character string with a variable length into an integer with a fixed size for prediction and extract a common prefix from a character string key to reduce a model fitting error. According to the method, the characteristics of character string data are fully considered, complex multi-dimensional linear regression is simplified into one-dimensional linear regression, and the model calculation overhead is reduced. Besides, the invention provides a self-adaptive strategy to select a proper index to manage the calculation cost, the method for dynamically selecting the index nodes can utilize the advantages of the two index types to the maximum extent, and the calculation overhead is effectively reduced while the index efficiency is ensured.

The present invention discloses a weather forecast data compression method based on video compression technology, belonging to the field of data compression technology. The steps include: S1, obtaining original weather forecast data, extracting time slices and weather element data; S2, preprocessing weather forecast data: mapping the same weather element data of each station at the same time to the interval [0-1023*n], n is the number of mapped channels; S3, three-dimensional grid point reconstruction of weather data: storing weather forecast data according to three-dimensional grid point data, and forming a weather data map in the data format of three color channels of the corresponding picture; S4, using a video compression tool to perform lossless compression encoding of weather forecast data with a bit depth of 10 bits and a chrominance-luminance ratio of 4:4:4; S5, using a video compression tool to decode the weather data of the encoded file generated by S4, and perform inverse transformation of weather forecast data. The present invention reduces the storage space of weather forecast data, and the final compression ratio can reach 10:1.

The embodiment of the invention provides a data processing method and a data processing chip, and the method comprises the steps: determining a first operation object corresponding to a first operation unit under the condition that the state of the first operation unit is an idle state, the first operation unit is any one of at least two operation units, and the first operation object corresponds to the first operation unit; the first operation object comprises one of a first node in the first Merkel tree and a target sequence chain of a second node in the first Merkel tree; and operating the first operation object by using the first operation unit to obtain an operation result. Thus, when any operation unit is in the idle state, the nodes or the sequence chains in the Merkle tree serve as the operation objects of the operation unit, the storage space can be reduced, high-parallel operation under the small storage space is achieved, all the operation units are fully utilized, and the operation efficiency is improved. And the parallel effect is improved while the utilization rate of the operation unit is improved, so that the operation efficiency is improved.

The invention discloses a digital radio frequency transmitter based on optimized mapping modulation, and the transmitter comprises an interpolation unit which is used for improving the sampling frequency of a baseband signal, and obtaining an intermediate frequency signal; the rectangular coordinate-to-polar coordinate conversion unit is used for obtaining the amplitude and phase of the intermediate frequency signal; the sector judgment unit is used for judging the sector where the signal is located according to the high order of the phase of the intermediate frequency signal and determining the phase difference between the sector where the signal is located and the mapping table reserved area; the mapping table generation unit is used for generating an intermediate frequency mapping table; the mapping coding unit is used for respectively calculating index addresses according to the low bits of the amplitude and the phase of the intermediate frequency signal, and searching an initial radio frequency digital sequence with the length of N corresponding to an intermediate frequency mapping table; the radio frequency digital sequence shifting unit is used for circularly shifting the initial radio frequency digital sequence by different digits according to the sectors where the signals are located to obtain correct radio frequency digital sequences corresponding to the signals; and the radio frequency digital-to-analog conversion unit is used for converting the radio frequency digital signal into a radio frequency analog signal.

The invention discloses a chemical building pipeline installation construction platform, and relates to the technical field of chemical building pipeline installation, the chemical building pipeline installation construction platform comprises a mobile platform, a processing table and a hydraulic cylinder 1; and the clamping device comprises an I-shaped plate, a clamping frame, a placement table, a clamping plate, an S-shaped rod, a fixing frame, a clamping rod, a fixing rod, a connecting block, an operation plate, a first fixing shaft, a linkage sleeve rod, a second fixing shaft and a limiting block. Then the output end of a first hydraulic cylinder moves downwards and drives a clamping plate to move till the pipeline is clamped, preliminary clamping of the pipeline is achieved, the stability in the pipeline welding project is improved, a clamping rod moves in the direction away from a fixing frame under the action of an S-shaped rod till the pipeline is clamped, and the pipeline is clamped; and the stability in the pipeline welding process is further improved, the welding quality is improved, and defects are reduced.

The invention discloses a light high-strength cable bridge, and relates to the technical field of aerial cable fixation, the light high-strength cable bridge comprises a rear protection plate, a front protection plate, a butt joint plate and a front sealing box, and the side faces of the rear protection plate and the front protection plate are provided with weight reduction grooves at equal intervals in the horizontal direction. The main body structure comprises the front protective plate, the rear protective plate and the telescopic connecting assembly, the front protective plate, the rear protective plate and the telescopic connecting assembly form a cable containing and placing structure, and the distance between the front protective plate and the rear protective plate is adjustable due to the existence of the telescopic connecting assembly; and finally, the internal space of the containing and placing structure formed by combining the front protective plate, the rear protective plate and the telescopic connecting assembly is adjustable, and a flexible space adjusting function is provided. When the number of the cables is small, the distance between the front protection plate and the rear protection plate can be reduced, space waste is effectively avoided, the storage space is saved, neat arrangement of the cables can be kept, the organizability and the maintenance efficiency are improved, and the containing space can be flexibly adjusted along with the change of the number of the cables.

The invention discloses a path planning method, system and device for a complex terrain and a storage medium. The method comprises the following steps: acquiring topographic data of a complex terrain through a laser radar, and constructing a map model based on an irregular triangular network; calculating the topographic cost of each triangle according to the topographic features of the map model, and converting the topographic cost of each triangle into the total topographic cost; and inputting the total terrain cost of each triangle into a Double DQN algorithm, and planning an optimal path. By combining the three-dimensional terrain modeling technology and the reinforcement learning algorithm, efficient, accurate and real-time path planning can be realized in a complex three-dimensional environment, the limitation of the prior art is overcome, and the development of the autonomous navigation technology of the robot is promoted.

The present application discloses a method for constructing a knowledge graph based on a large language model and a vector library, which relates to the field of knowledge graph technology, including: using a pre-trained RoBERTa model to perform word segmentation, part-of-speech tagging and semantic analysis on the collected natural language text to obtain a semantic representation vector of the natural language text; obtaining the association between the semantic representation vector and the corresponding named entity through the Seq2Seq framework and the attention mechanism, and obtaining the named entity through the obtained association; constructing a knowledge graph; fusing the constructed knowledge graph with a relational database of a preset domain to generate a fused knowledge graph; using dependency syntactic analysis to obtain the named entity and the corresponding attribute, obtaining the entity relationship of the named entity, and constructing a structured triple of the named entity, attribute and entity relationship of the fused knowledge graph. In view of the difficulty of entity linking in the prior art, the present application converts the knowledge graph into a low-dimensional dense vector representation, and constructs an inverted index library, etc., to reduce the difficulty.

The invention discloses an information processing method and system of a digital vehicle key and a vehicle. The method is applied to a vehicle side and comprises the steps that a target request is sent to a server side, the target request is used for requesting the server side to preset a certificate on the vehicle side, the certificate is used for generating a plurality of digital vehicle keys, and the effective states of different digital vehicle keys are synchronized with the effective state of the certificate; acquiring a certificate issued by the server in response to the target request; the certificate is stored, a first notification message is sent to the server side, the first notification message is used for indicating that the certificate is successfully preset on the vehicle side, the state of the certificate is set to be an allocatable state by the server side, and the allocatable state is used for indicating that the certificate is allowed to be allocated to an application program bound with the vehicle side; the application program is used for executing locking operation or unlocking operation on the vehicle end through the digital vehicle key corresponding to the certificate. According to the invention, the technical problem of low information processing efficiency of the digital vehicle key is solved.

The invention provides a factory monitoring method and system based on digital twinning, belongs to the field of intelligent control, and solves the problems that video monitoring in a factory has a monitoring dead angle and also has a large amount of non-key information, and the monitoring efficiency is poor. If undifferentiated analysis is carried out on video data in real time, a large number of computing resources are consumed on meaningless data, and in addition, the problem that personnel video information and a digital twinborn model are difficult to fuse in video monitoring is solved. The method comprises the following steps: acquiring a manual control signal of operation equipment in a factory; based on the manual control signal, determining manual operation information currently implemented by an operator for the operation equipment; and deducing the current operation action of the operator in the digital twin model through the manual operation information so as to simulate the three-dimensional simulation dynamic effect of the operator corresponding to the operation action.

The invention provides a data backup recovery method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the real-time data monitoring of a database and a file system, and capturing a data modification event; if the modified data is a database table or a document file, acquiring an incremental updating part of the modified data relative to the previous backup moment, performing compression based on the incremental updating part to obtain an updating compressed file at the current backup moment, creating a version identifier of the updating compressed file and a mapping relation between the version identifier and the modified data, and then backing up the updating compressed file; if the file is a picture file, compressing the modified data to obtain an overall compressed file at the current backup moment, creating a version identifier of the overall compressed file and a mapping relation between the version identifier and the modified data, and then backing up the overall compressed file; based on the version identifier corresponding to the modified data selected by the user, the updated compressed file or the overall compressed file corresponding to the version identifier is obtained, data recovery is performed accordingly, and data security and integrity are maintained.

The invention discloses an analysis query method and device for a database, and the method comprises the steps: obtaining data corresponding to a query instruction from a pre-constructed preset storage structure through a preset index algorithm when the query instruction is received in a data query process of a database system, the preset storage structure is obtained by optimizing a storage structure design layer of a multi-version concurrency control mechanism, the preset storage structure is used for avoiding volume expansion caused by multi-version control and improving the performance of data analysis and query, and data is compressed through a data compression algorithm. And storing the compressed data in a preset storage structure in a column storage mode.

The detachable unmanned aerial vehicle framework comprises a vehicle body, a fixing base is fixedly connected to the side edge of the vehicle body, a vehicle arm is inserted into the fixing base, and grooves are formed in the two sides of the vehicle arm; the folding mechanism is fixedly connected to one end of the bottom of the vehicle arm; and the two clamping mechanisms are symmetrically distributed on the side edge of the end, away from the folding mechanism, of the vehicle arm. Through the arrangement of the clamping mechanism, the vehicle arm slides into the fixing base through the inserting groove, the second spring at the bottom of the pressing plate contracts inwards through extrusion in the sliding process, the second spring rebounds when the vehicle arm slides to the clamping groove, the clamping block is clamped in the clamping groove at the moment, and therefore the vehicle arm is fixed; the clamping blocks drive the second springs at the bottoms of the pressing plates to contract inwards, then the vehicle arms are drawn outwards, the clamping blocks are separated from the clamping grooves to be disassembled, and the clamping blocks are clamped in the clamping grooves and cannot be loosened under the action of the elastic force of the second springs.

This invention relates to the technical field of livestock feeding devices, and in particular to a pig feeding device for livestock breeding. It includes a feed storage box, with a feeding funnel fixedly connected to the upper end of the box for assisting in feeding. A cavity is formed at the lower end of the box, and a guiding component for uniform feeding is installed inside the cavity. Below the feed storage box are a pushing component and a leveling component for evenly distributing the feed that falls into the feeding trough. This invention, by setting up the guiding component, allows the feed to be distributed in a segmented manner from inside the feed storage box into the feeding trough, and the feed to be evenly piled up inside the feeding trough. At this time, the leveling component evenly distributes the feed inside the feeding trough, thus ensuring that the amount of feed is the same at all positions inside the feeding trough when piglets are driven to eat outside the feeding trough, preventing overfeeding and effectively improving the quality of the piglets after feeding.

According to the air-cooled airing-free packaging folding box gluing assembly machine, a paperboard sucking and grabbing device is installed on a longitudinal axis sliding rail and a transverse axis sliding rail in a sliding mode through a movable truss, a vertical axis lifting support is vertically installed beside the longitudinal axis sliding rail and the transverse axis sliding rail, and a translation mechanical arm is installed on the vertical axis lifting support; machining tables are mounted on the inner sides of the longitudinal-axis sliding rails and the transverse-axis sliding rails; a feeding glue spraying nozzle is mounted on a working part at the tail end of the translation manipulator; and an air curtain device and a negative pressure air guide suction and exhaust device are arranged on the inner sides of the longitudinal axis sliding rail and the transverse axis sliding rail. Multiple functions of gluing, assembling, cooling and the like are integrated, airing and glue overflowing are not needed, and one-time forming can be achieved. And the glue coating amount is controlled very accurately, and waste and excessive use of glue are avoided. And an air cooling technology is adopted, so that the glued folding box can be quickly cooled and shaped, and the problems of time delay and environmental influence caused by a traditional airing mode are avoided. The equipment can meet the production requirements of paper boxes with different sizes and shapes. And the product quality and consistency are ensured.

The utility model discloses a stackable combined tray for cold chain storage and transportation, which comprises a tray, a support column, a bandage, a bottom sheath, a middle sheath, a top sheath, a bolt and a hook sticker, the tray is rectangular, the support column comprises an upper round tube, a lower round tube, the bottom sheath, the middle sheath, the top sheath and the bolt, and the tray adopts a structure shaped like a Chinese character'tian '. Mechanical carrying equipment such as forklifts can be conveniently used to improve the working efficiency, and the labor intensity of people is reduced; upper and lower air holes are formed in the tray bearing surface to enhance the upper and lower cold air circulation effect of the tray; the detachable supporting columns are connected to the four corners of the tray in an inserted mode, the hemispherical stacking heads are arranged at the top ends of the supporting columns, the tray can be stacked up and down, meanwhile, the supporting columns can stretch out and draw back to adjust the height, and the combined tray has the function of adjusting the space size; the bandages between every two adjacent supporting columns can be connected with each other through the hook-and-loop fasteners, so that the effect of preventing commodities on the tray from falling out is achieved.

The invention discloses a device cleaning method, an electronic device and a computer readable storage medium. The method comprises the steps that the total cache amount of a plurality of first preview files stored in a target storage device is acquired; wherein the target storage device is a device used for storing first preview files corresponding to different target files in the cloud disk, and the first preview files are generated when the client requests to preview the corresponding target files; based on the total cache amount of the first preview files, detecting whether the target storage equipment meets a cleaning starting condition or not; and in response to the condition that the target storage device meets the cleaning starting condition, cleaning the first preview file in the target storage device. By means of the mode, the first preview file in the target storage device can be cleaned in time, the first preview file in the target storage device can be reasonably managed, and the storage space of the target storage device is saved.

The utility model provides a composite material airstairs with bidirectional self-locking performance, which comprises an upper half section of ladder assembly, and the top end of the upper half section of ladder assembly is connected with a friction disc assembly through a top bending section; the bottom end of the upper half section ladder frame is provided with a lower half section ladder frame through a folding mechanism; a bidirectional self-locking mechanism for locking an unfolded or folded state is mounted on the folding mechanism in a matched manner; pedals are fixedly arranged between the upper half section ladder frame and the lower half section ladder frame and are made of composite materials; and the bottom end of the lower half section of ladder frame is connected with an anti-skid supporting leg assembly. The airstairs are of a folding structure and can be conveniently folded after being used, so that the occupied space is reduced; the main body material is made of a composite material, so that the weight is effectively reduced; and meanwhile, the spring is adopted to drive the double-shaft self-locking mechanism, so that the airstairs can be quickly self-locked in an unfolded state and a folded state, and the working efficiency is improved.

The invention belongs to the technical field of automobile data storage, and provides a data storage method and system based on field-level association storage, and the method comprises the steps: building a storage structure for data to be stored based on fields in a distributed database, and associating the fields; pre-processing the associated storage data, and performing timing data compression and duplicate removal on the pre-processed storage data; and optimizing a query path for the preprocessed storage data based on index establishment and a caching technology. According to the method, the data structure is remarkably simplified by adopting a field-level associated storage mode. According to the method, a lengthy and complex table structure in a traditional data model is disassembled, fields are used as basic units for storage, and an efficient association index is established according to the logic relation between the fields. The data storage efficiency is greatly improved, the data writing and reading speed is remarkably increased, and a solid foundation is laid for subsequent data processing and analysis.

The invention discloses a chip security access control method, device and system and a chip. The control method comprises the following steps: when the chip is coupled with access equipment through a debugging interface, detecting an access request through the debugging interface and acquiring an access object of the access request; obtaining a first verification key or a second verification key based on an access object of the access request, and executing first verification or executing second verification based on the first verification; wherein the first verification key and the second verification key are generated based on a unique user identifier of an electronic device of the chip, the first verification key is associated with the first safety circuit, and the second verification key is associated with the second safety circuit; and controlling the first safety circuit or the second safety circuit to be switched on or switched off according to a result of the first verification or the second verification.

The utility model discloses a robot. The robot includes: an action mechanism that causes the robot to have a translational degree of freedom on a horizontal plane; the action mechanism is connected to the rack through a lifting mechanism, so that the rack has the translational degree of freedom in the vertical direction; the robot further comprises a mounting mechanism, and the mounting mechanism comprises at least one magnetic and / or negative pressure adsorption plane and / or at least one fixed mounting position arranged on the rack. Therefore, the robot is improved in the technical level and the application level.

The invention provides a storage device, a host and a data processing method of the storage device and the host. The data processing method of the storage device may include: the storage device receiving input data to be processed by the storage device; in response to a parameter update request in model training of the host, the storage device calculates deep neural network model parameters by using the input data; and the storage device sends at least a part of the calculated deep neural network model parameters to a host.