17results about How to "Efficient reading" patented technology

The invention provides a high-density RFID tag group scanning system based on a multi-antenna array and beam forming, and relates to the technical field of the Internet of Things. The system comprises a multi-antenna array, an RFID reader-writer, a beam forming unit, a signal processing unit, a feedback unit and a data management unit. Through a digital beam forming technology, the system dynamically adjusts the direction and width of a beam, and achieves the precise scanning of a target area. And in combination with real-time signal feedback, a density peak clustering algorithm and a gradient descent algorithm are adopted to optimize beam parameters, so that the recognition efficiency is improved. The system further utilizes an anti-collision algorithm to dynamically adjust frame parameters, and performs logic grouping based on spatial positions and type characteristics of tags, so that signal collision and missed reading rates are remarkably reduced. Meanwhile, the data management unit stores and outputs the label data in a classified mode, and intelligent management capacity is provided for multi-scene application.

The embodiment of the invention discloses a data storage method and device, equipment, a medium and a program product. The method comprises the steps of obtaining to-be-stored target data; based on multiple first compression modes, performing parallel compression processing on the target data, and based on the actual compression speed of each first compression mode, determining a target first compression mode corresponding to the target data and a first compressed file compressed based on the target first compression mode; determining a first index value corresponding to the first compressed file, wherein the first index value comprises identification information of a first storage bucket allocated at the time; and based on the first index value, storing the first compressed file into a first storage bucket in the object storage service, establishing a target mapping relationship between the first index value and the identification information of the target data, and storing the target mapping relationship into a database. Through the technical scheme of the embodiment of the invention, the data storage cost can be effectively reduced, and the data storage efficiency and management convenience are improved.

The invention relates to the technical field of automatic driving, and discloses an automatic driving simulation 3D model radar reflectivity storage and reading method, and the method comprises the steps: collecting and calculating the real reflectivity of an object in an automatic driving related scene; embedding the real reflectivity of an automatic driving related scene object into a texture map on the surface of the 3D model; and calculating and reading radar reflection intensity feedback data. According to the method, the radar reflectivity field is embedded in the 3D model texture, the radar reflection characteristics of different objects are accurately simulated, the influence of environmental factors on radar reflection is considered, and efficient storage and reading of data are realized, so that the support capability of an automatic driving simulation system on an end-to-end test is improved, and the authenticity and effectiveness of simulation are enhanced.

The invention discloses a low-loss anti-aging orbital angular momentum RFID (Radio Frequency Identification Device) array antenna which sequentially comprises N array units, a first dielectric substrate, a metal grounding plate, a second dielectric substrate and a feed network from top to bottom, the N array units are in central symmetry and are distributed on the upper surface of the first layer of dielectric substrate at equal angular intervals along the circumference, the feeding amplitudes of the array units are the same, and the phase difference between two adjacent array units in the clockwise direction meets # imgabs0 #, l is an orbital angular momentum mode required by a radiation beam, and the number of the array units meets the condition that-N / 2 < l < N / 2; each array unit is of a circular structure, one or more strip-shaped gaps are additionally formed in each array unit, and the center position of each strip-shaped gap is located at the center position of the array unit; the metal grounding plate is provided with strip-shaped gaps corresponding to the center positions of the array units, the feed network feeds through the gaps in the metal grounding plate, the feed amplitudes of the array units are the same, and vortex electromagnetic waves are generated.

The present invention proposes a multi-core processor and a method for centralized cache consistency management thereof, which relates to the field of data processing technology. Data exchange and information access between various components are performed through the connection of a central exchange block, a system main memory and a core module; cache information of each core is recorded through the core module; data read application information is obtained, core data holding information is obtained according to the data read application information, and a core that sends a data read request is converted according to the core data holding information; core update cache demand information is obtained, a cache management unit updates a memory data block, and resets a cache management table. Through a unique central exchange block and high-speed memory design, etc., a more flexible and efficient cache consistency solution is provided, which is suitable for more multi-core processor application scenarios.

The present application provides a mechanical oscillator quantum device based on an acoustic cavity, a preparation method thereof, and a room temperature reading device. The device includes: a thin film mechanical oscillator, including: a silicon substrate, including a silicon substrate body and an acoustic cavity, the silicon substrate body surrounding the acoustic cavity; a first thin film layer, arranged on the first surface of the silicon substrate body, and covering the acoustic cavity; a second thin film layer, arranged on the second surface of the silicon substrate body, and not covering the acoustic cavity; a first metallization layer, arranged on the first thin film layer, including a central portion arranged above the acoustic cavity, a main body portion arranged above the first surface of the silicon substrate body, and a connecting portion connecting the central portion and the main body portion; a bulk acoustic wave resonator, including: a sapphire substrate; a second metallization layer, arranged under the sapphire substrate; a piezoelectric layer, arranged under the second metallization layer, and connected to the first metallization layer through an indium column. The present application realizes efficient reading of the acoustic mode of a thin film mechanical oscillator through dissipative coupling in a room temperature vacuum environment.

The embodiment of the specification discloses a kind of dynamic pseudo-color rendering methods, equipment and medium of large image data, it is related to image rendering technical field, for solving the problem of low reading efficiency and low rendering precision of current large image data.Method includes: obtaining the source image data generated by semiconductor optical detection;Based on the resolution level corresponding to different scaling ratio, pyramid segmentation is carried out to source image data, and mixed tile data and its corresponding level row column index are constructed;Mixed tile data includes: raster base map tile data and vector overlay tile data;According to the scaling level and display area coordinates of current view, the corresponding level row column index is determined to load the corresponding target tile data;Target tile data is input into pre-training mapping model, and the corresponding pseudo-color mapping value generated by the pre-training mapping model is obtained, to be rendered and displayed based on pseudo-color mapping value.

The invention relates to a scale identification technology, and discloses an endoscope hose scale identification method and device, electronic equipment and a hose, and the method comprises the following steps: obtaining a scale image, and carrying out annular scale line type identification on the scale image to obtain multiple types of scale line marks; dividing the scale mark into a reference mark and an identification mark, and determining a mark relation corresponding to the identification mark and a target mark according to the reference mark; and generating an initial identification scale according to the target mark and the corresponding binary representation rule, and performing optimization identification on the initial identification scale by using the identification mark and the corresponding mark relationship to obtain a target scale. According to the invention, the scale of the hose can be accurately identified from multiple angles.

The invention relates to a metadata processing method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: extracting a system table of metadata of each database from a distributed database cluster; for a system table of any database, obtaining keys in a key value pair from a database identifier of the database, a system table identifier of the system table, an attribute identifier of a business data attribute of metadata and a business data identifier to which an attribute value corresponding to the attribute identifier belongs; taking the attribute value as a value in the key value pair to obtain an initial key value pair corresponding to each attribute value of each business data attribute; compressing the initial key value pair to obtain a target key value pair corresponding to each attribute value of each business data attribute; and writing the target key value pair into a metadata storage database corresponding to the distributed database cluster. By adopting the method, the metadata storage space can be saved.

The invention relates to the technical field of power line carrier communication, and particularly provides a power line carrier communication data processing method and device, and the method comprises the steps: carrying out the mapping of a plurality of target data through a first mapping rule, and writing the target data into a plurality of memories; in the reading stage of each iterative operation cycle, mapping the logic reading address according to a first mapping rule to obtain a physical reading address, and performing data reading on the corresponding target data according to the physical reading address; performing fast Fourier calculation according to the plurality of parallel radix-4 operation modules to obtain a calculation result; in a writing stage of a non-last iterative operation period, writing a calculation result back to an original physical address to cover original data according to a first mapping rule; and in the write-in stage of the last iterative operation period, generating a physical write-in address corresponding to the calculation result according to a second mapping rule, and writing the calculation result into the corresponding physical write-in address. According to the method, the calculation speed and the read-write speed are effectively improved, the processing time is shortened, and the timeliness is ensured.

The present invention provides a disc-type scaffolding plane intelligent layout and drawing system, comprising: a structure outer contour extraction module, an outer contour processing module, a scaffolding plane layout module and a plane drawing module. The present invention can realize fast and efficient reading of the structure outer contour, and on this basis determine the position of the scaffolding vertical pole and horizontal pole, and draw a complete scaffolding plane layout on the plane, so as to save the manpower of engineers and replace repeated labor.

This invention provides a method and related products for converting payload files in heterogeneous databases. The method includes: in response to a conversion command, obtaining a payload file from the heterogeneous database; parsing the payload file to obtain a parsing result; obtaining an ordered index list corresponding to a target file in a local database, the target file being used to store the converted payload file; determining the target file to be written based on the ordered index list; converting the parsing result to obtain a conversion result recognizable by the local database; and writing the conversion result to the target file. This method enables the conversion of payload files between heterogeneous databases, thereby supporting further processing of payload files by domestic databases.

The present application discloses a flight parameter data parsing method, device, electronic device and storage medium, the method includes: a data reading module maps the original flight parameter data file to the computer memory; the data reading module is composed of a single thread; the data reading module obtains the first interface control document data; the first interface control document data contains the data frame identification of the flight parameter data to be parsed; the data reading module determines the target frame position of the target data frame of the flight parameter data to be parsed in the computer memory according to the data frame identification, and obtains the target frame header information of the target data frame; the data parsing module obtains the target frame data corresponding to the target data frame according to the target frame position and the target frame header information; the data parsing module is composed of several threads; the data parsing module parses the target frame data according to the second interface control document data to obtain the target flight parameter parameter value. It can improve the efficiency of flight parameter data parsing, reduce the time of flight parameter data parsing, and can be widely used in the field of data processing technology.

The present application relates to a kind of round steel peeling machine " five heart coaxiality " detection and adjustment method for the coaxiality of blank feeding roller, front guide, rotary cutter head, rear guide and clamping trolley five components of large-scale round steel peeling machine, install front and rear support sleeve, with the reference of front support sleeve, detect and adjust the coaxiality error of front guide and cutter head, install test bar, detect and adjust feeding roller, detect and adjust rear guide, detect and adjust trolley, avoid the quality problem of processing product caused by the large error of equipment " five heart coaxiality " error, through special tooling, support test bar, and test bar is in good stress state, clamping roller does not clamp test bar, which is beneficial to maintain the accuracy of test bar, and the detection and adjustment process is reasonable, and the detection and adjustment precision is high, and the efficiency is high.

The invention relates to the technical field of communication, in particular to a data packet capturing, storing and playback method and device under a high-speed scenario, and the method comprises the following steps: before starting to capture data, a configuration unit identifies the number of available disks, tests the sequential read-write performance of the disks, counts the input flow, and stores the input flow; automatically or manually configuring the corresponding relationship between the data packet input queues and the disks, and grouping and distributing the input queues to appropriate disks according to traffic; when a storage data packet is captured, a packet receiving unit directly receives a data packet in a network card queue in a user mode, and places data packet information into the queue according to a queue disk corresponding relation, and the data packet information is assembled and written into a disk by a storage unit; when the data packet is played back at a high speed, the configuration unit identifies the number of disks and additional write-in information, the reading unit reads disk sequence blocks in a user mode according to configuration analyzed by the configuration unit, the read data blocks are put into a playback queue, and the playback unit reads data in the playback queue.

The utility model provides a modularized ion detection device for an ion trap and quantum computing equipment, and the device comprises a rigid cavity, and an objective lens, a first plano-convex lens, a diaphragm, a combined lens, a second plano-convex lens and a multi-channel photomultiplier which are arranged in the rigid cavity, the objective lens collects fluorescence emitted by a plurality of ions linearly arranged in an ion trap arranged outside the rigid cavity through an opening or a window at one end of the rigid cavity; collected fluorescence of a plurality of ions sequentially passes through the first plano-convex lens, the diaphragm, the combined lens and the second plano-convex lens in a free space and is respectively projected into a plurality of linearly arranged channels in the multi-channel photomultiplier for detection. According to the utility model, quantum bit information can be accurately and efficiently read from fluorescence emitted by a plurality of ions which are trapped in the ion trap and are linearly arranged in the ion trap in the quantum computing equipment based on the ion trap.