65 results about "Target array" patented technology

The application provides a wideband target array calibration system, device and calibration method thereof, which comprises a master control module, a digital signal processing module, a frequency conversion module and a four-element antenna; the four-element antenna is connected with the frequency conversion module through a microwave cable; the frequency conversion module is connected with the digital signal processing module through a microwave cable and a serial cable; the digital signal processing module is connected with the master control module through an optical fiber; and the master control module, the digital signal processing module, the frequency conversion module and the four-element antenna are connected to form the wideband target array calibration system. The application independently completes the calibration work at each working frequency point in the wideband and the calibration work in the instantaneous bandwidth, and does not depend on high-end instruments, so that the defect of long time consumption in the traditional calibration using the sweep frequency mode is overcome, and the calibration time is reduced.

The application provides an X-ray communication device and method based on a laser-driven matrix photocathode. The device is applied to the technical field of X-ray tubes and comprises a laser control circuit, a matrix transmission photocathode array, a collimating microchannel plate, a matrix transmission anode target array, a vacuum tube shell and a beryllium window. The method comprises: generating a dynamic pattern, loading data information to be input into an optical signal; and exciting photoelectron emission with spatial resolution characteristics at a corresponding photocathode pixel area; each channel cluster is aligned with a single photocathode pixel at the front end; after the electrons enter the microchannel, continuous secondary electron emission occurs under the action of the electric field on the inner wall of the channel, and an avalanche effect is generated; and through mechanisms such as bremsstrahlung radiation, a bundle of microfocus X-rays is generated at each target point. In this way, the technical problems of the X-ray source in the prior art, such as the limitation in spatial coding capability, response speed, integration degree and communication dimension, can be solved.

The invention provides an X-ray communication device and method based on a laser driving matrix type photocathode. The device is applied to the technical field of X-ray tubes and comprises a laser control circuit, a matrix transmission type photocathode array, a collimation type structure micro-channel plate, a matrix transmission type anode target array, a vacuum tube shell and a beryllium window. The method comprises the following steps: generating a dynamic pattern, and loading data information to be input into an optical signal; photoelectron emission with spatial resolution characteristics is excited in a corresponding photocathode pixel area; each channel cluster is aligned with a single photocathode pixel at the front end; after the electrons enter the micro-channel, continuous secondary electron emission occurs under the action of an electric field on the inner wall of the channel, and an avalanche effect is generated; a beam of micro-focus X-rays is generated at each target spot through mechanisms such as tough-induced radiation. In this way, the technical problem that in the prior art, an X-ray source is limited in space coding capacity, response speed, integration degree and communication dimension can be solved.

The application relates to a service device and a database event processing method, which are applied to the technical field of databases, and the service device comprises a controller which is configured to: in the process of executing an SQL statement by a database process, enter a kernel state through a system call to execute a kernel function through a target CPU core; in the process of executing the kernel function, trigger a corresponding eBPF mounting point to run an eBPF program on the target CPU core; capture a target database event by executing the eBPF program; write target event data corresponding to the target database event into a target array buffer corresponding to the target CPU core; and in the case that event attribute information corresponding to the target array buffer meets a target condition, batch submit a plurality of event data in the target array buffer to a user state program. The performance overhead caused by frequent switching between the kernel state and the user state is reduced, and the running performance of the database itself is improved.

The application discloses an abnormal data identification method and device of a vehicle, an electronic device and a storage medium. The abnormal data identification method of the vehicle comprises the following steps: acquiring at least one set of to-be-identified arrays corresponding to a preset to-be-identified time period; comparing the to-be-identified arrays, determining the array difference degrees corresponding to each to-be-identified array; and if a target array with an array difference degree exceeding a preset difference degree threshold is detected in each to-be-identified array, determining the data in the target array as abnormal data. The application solves the technical problem of low accuracy of abnormal data identification in the prior art.

The application discloses a kind of frequency guidance-based array signal space-frequency information fusion processing method and device, applied to field programmable gate array (FPGA), by obtaining the multiple array signals for carrying out target detection received by target radar array;Any one of the multiple array signals is subjected to frequency detection, and at least one target frequency value is obtained;At least one target frequency value is subjected to frequency conversion filtering according to the multiple array signals, and at least one target array signal corresponding to at least one target frequency value is obtained;At least one target array signal is subjected to angle of arrival estimation, and at least one angle of arrival is obtained;According to at least one target frequency value and at least one angle of arrival, the corresponding relationship of target frequency value and angle of arrival is determined.The application utilizes single-channel signal to carry out frequency measurement, and then carries out filtering processing to multiple array signals and carries out angle of arrival estimation, and subsequent frequency retrieval is not necessary, and the FPGA resource utilization is improved.

The embodiment of the specification provides a satellite-borne phased array antenna beam control method, system and device, wherein the method comprises the following steps: determining initial array information and initial suppression information, and constructing an initial array model based on the initial array information, wherein the initial suppression information comprises a sidelobe suppression window function satisfying a sidelobe earth matching condition; calculating initial array excitation coefficients corresponding to the initial array model by using the initial suppression information, and determining radiation performance information of the initial array model through the initial array excitation coefficients; iteratively optimizing the initial array information and the initial suppression information based on the radiation performance information until a target array model satisfying the sidelobe earth matching condition and target array excitation coefficients of the target array model are obtained, the target array model is used for designing a target antenna array, and the target array excitation coefficients are used for controlling a communication beam of the target antenna array, so that the system and automatic antenna design is realized, and the radiated communication beam has strong anti-interference and compatibility.

The application provides a network data processing method and system based on RC4 encryption algorithm and XB algorithm, and relates to the field of data processing.The method comprises the following steps: accessing a target webpage based on a WinHttp module, and obtaining commodity information and video data information from the target webpage; performing deduplication and sorting processing on the video data information to obtain a first database; encrypting the data in the first database based on a preset RC4 algorithm program and XB algorithm program to obtain a second database; determining a target array from the second database based on second instruction information; and transmitting the data in the target array to a plurality of user homepages.The application pushes the data of the target array to a plurality of user homepages, the target array is attractive content selected from a large amount of video data information, and the target array is accurately delivered to a target audience group, so that the goods carrying efficiency and conversion rate are improved, and the integration of an e-commerce platform, a video website and live goods carrying is expanded.

A method for converting source radar data of a source configuration of a radar system into target radar data of a target configuration of the radar system includes the steps of: providing a two-dimensional or more-dimensional source array of grid cells for spatial coordinates of source reflection locations; determining and assigning the probability and / or frequency of one or more source reflection locations being located in the grid cell from the spatial coordinates of all source reflection locations for each grid cell; constructing a source tensor comprising at least a source array occupying the probability and / or frequency; transforming the source tensor into a target tensor comprising at least one target array of grid cells for spatial coordinates of target reflection locations, wherein the target array specifies for each grid cell the probability and / or frequency of a target reflection location being located in the corresponding grid cell when observing a scene using the target configuration; and sampling the spatial coordinates of the target reflection locations according to the probability and / or frequency in the target array to form target radar data.

The embodiment of the invention discloses a display method, device, equipment, system, medium and product. The method comprises the following steps: acquiring a preset configuration file; the preset configuration file comprises the number of icons corresponding to each display screen and the number of each icon; for any display screen, creating an initial array according to the number of icons corresponding to the display screen; based on the serial number of each icon in the display screen, filling a corresponding position of the initial array with a hardware cyclic redundancy check HWCRC value corresponding to each icon in a check value set to obtain a target array; transmitting the transmission message to a micro control unit (MCU) end through a communication interface, so as to drive the display screen to carry out icon display through the MCU end according to each HWCRC value in the transmission message; the transmission message is determined based on the target array. According to the technical scheme, the code maintenance difficulty is reduced, and the icon display accuracy is improved.

The invention discloses a voice collection method, device and equipment and a storage medium, and relates to the technical field of audio processing, and the voice collection method comprises the steps: carrying out the feature extraction of microphone data collected by a target array microphone according to beam splitting, and obtaining a plurality of beam sound features; performing feature extraction on the voice data acquired by the voice processing unit based on a target person to obtain voiceprint features of the target person; performing similarity comparison on each wave beam sound feature and the target person voiceprint feature, and selecting a target wave beam with the maximum similarity in each wave beam sound feature; and encoding the voice signal corresponding to the target beam and uploading the encoded voice signal to a target terminal. Through the mode, voice signals are acquired through a collaborative acquisition mechanism of the beam forming array and the near-field VPU sensor, the signals with the optimal beams are selected to be processed and transmitted, and the accuracy and effect of voice acquisition are improved.

The invention relates to the technical field of phased-array antenna arrays, in particular to a random uniform sparse algorithm for a phased-array antenna. Comprising the following steps: carrying out minimum unit sub-array grid division on working characteristics of a target array antenna, and carrying out uniform grid partitioning; obtaining possible sparse structures of all basic unit antennas in the antenna sub-array by taking the sub-array as a basic unit; according to preset antenna performance parameters and screening criteria, the sparse structures are combined step by step, and all possible sparse mechanisms of the k-th-level antenna sub-array are obtained; taking the k-level sub-array as a unit, and according to a screening criterion, sequentially and randomly combining to form an antenna whole array; screening the randomly combined antenna whole array according to a screening criterion; and performing array pattern traversal simulation on the screened whole array, and screening an optimal sparse structure. The invention provides a random uniform sparse algorithm for a phased-array antenna, which reduces the sidelobe level, improves the generation speed and economy, and ensures the beam robustness.

Embodiments of the present application disclose a fine adjustment distance determination method and device and electronic equipment. The method comprises: determining an array boundary and a column foot boundary according to initial boundaries of a to-be-installed roof and roof information; determining a target array corner point set and a plurality of column foot points according to a photovoltaic array; determining an array boundary movable distance according to the array boundary and the target array corner point set; determining a column foot boundary movable distance according to the column foot boundary and each column foot point; and determining a fine adjustment distance of a photovoltaic array installation position according to the array boundary movable distance and the column foot boundary movable distance. The method determines the array boundary of the photovoltaic array and the column foot boundary of the column foot, and then determines the movable distance of the array boundary and the column foot boundary according to the array corner point and the column foot point, so as to determine the fine adjustment distance for fine adjustment of the photovoltaic array installation position based on the movable distance, thereby achieving fine adjustment of the photovoltaic array installation position.

The application discloses a kind of based on bit-level sparsity software and hardware collaborative acceleration method and FPGA architecture, the method includes: based on bit-level serial arithmetic unit composition target array, based on coarse-grained coding method, operand is converted into the encoding representation for bit-level sparse calculation;Bit-level serial arithmetic unit is designed in cooperation with coarse-grained coding method;Based on lookup table resource characteristics, bit-level serial arithmetic unit is optimized;Based on target array, the product accumulation operation for encoding representation is executed;Based on distributed controller, through micro load balancing communication strategy, data flow and calculation scheduling in target array are managed.Based on coarse-grained coding method and the use of bit-level serial arithmetic unit, while maintaining the accuracy of calculation, information processing density and hardware resource utilization are improved;Based on micro load balancing communication strategy, the uncertainty of calculation time and load imbalance are improved, and then the product accumulation operation efficiency and resource utilization of FPGA platform are improved.

The application relates to a die-cut label photoelectric threshold automatic calibration method, a system, a medium and an electronic device, and relates to the technical field of die-cut labels.The method comprises the following steps: acquiring N actual photoelectric values; arranging the actual photoelectric values in a forward collection sequence and adding the actual photoelectric values to a preset first array; determining first derivative data according to the first array, wherein the first derivative data is data reflecting the change rate of the actual photoelectric values; updating the first array to obtain a target array, and determining the target array as the first array; repeatedly executing the step of determining the first derivative data according to the first array until N first derivative data are obtained, and the target array contains N photoelectric values; determining second derivative data corresponding to the photoelectric values collected by the photoelectric sensor according to the first derivative data; and determining a target photoelectric threshold corresponding to a label to be printed according to the first derivative data and the second derivative data.The application has the effect of improving the photoelectric threshold and label adaptability.

Embodiments of the present application disclose a cache control method, device, equipment and medium. The method comprises: obtaining a target access heat of cached data; controlling a storage address of the cached data to be added to a target array according to the target access heat; and updating the cached data in a cache area according to the storage address in the target array. The above scheme introduces the target access heat, updates the storage address in the target array, and then updates the cached data in the cache area in stages, thereby avoiding the influence of cache area avalanche on the database and reducing the access pressure of the database. Meanwhile, the above scheme reduces unnecessary occupation of cache resources, improves the use efficiency of cache resources, and is convenient to operate and has small computational complexity.

The invention discloses a road edge determination method and device and a storage medium, and relates to the technical field of automatic control. The road edge determination method comprises the following steps: determining a plurality of ground points from a plurality of laser radar points; grouping the plurality of ground points to obtain a plurality of target wire harnesses, each target wire harness including a plurality of ground points; a plurality of ground points in each target wire harness are sorted, a target array is obtained, and a plurality of items in the target array are arranged from small to large; a plurality of smoothness numerical values of a plurality of ground points in the plurality of target arrays are calculated, and each ground point corresponds to one smoothness numerical value; determining a plurality of target smoothness values from the plurality of smoothness values according to a preset smoothness value; and determining a target road edge according to a plurality of target ground points corresponding to the plurality of target smoothness values. The technical problem of inaccurate road edge extraction in the prior art is solved.

The application discloses a micro-light target device and an absolute radiation calibration method for a spaceborne micro-light load, and adopts a light source which is industrialized and customized and meets corresponding conditions in terms of spectral energy stability, waveband response, light source emission energy stability, light source emission energy uniformity in each direction and light source power as a calibration light source of the target, so that the problem that the light source in the prior art has great uncertainty due to the influence of lamp temperature and the narrow spectral range cannot meet the full spectral range calibration requirement can be overcome. In addition, the application arranges multiple targets with different openings to form an absolute radiation calibration target array of the spaceborne micro-light load, so that multi-point and full waveband radiation calibration can be realized, and through the combination of the micro-light targets with different openings, the measured target radiance, the atmospheric profile and the aerosol content and other parameters, and the simulation of the entrance pupil radiance of the spaceborne micro-light load at the top of the atmosphere by means of a radiation transmission model, high-precision absolute radiation calibration of the spaceborne micro-light load with different spatial resolutions can be realized.

The invention relates to a method for building a target array of trapped particles formed of particles trapped in N trapping sites positioned according to a target geometry, the method comprising: - determining an initial geometry for the positioning of N trapping sites, as a function of the target geometry, so as to fulfill a rearrangement criterion stating that trapping sites positioned according to the initial geometry enables to reduce the number of moves and / or the distance traveled by particles when rearranging particles stochastically loaded in such trapping sites, as compared to trapping sites positioned according to the target geometry, - computing a set of parameters for controlling a generator (22) of trapping sites, so as to transform the geometry of trapping sites from the initial geometry to the target geometry.

This disclosure provides a display panel, a pixel voltage lookup table acquisition method, an electronic device, and a medium. The display panel includes: a monochrome sub-pixel array; at least one of the monochrome sub-pixel arrays is a target array; the target array is composed of at least two types of sub-pixels arranged periodically; any two types of sub-pixels have different pixel characteristics; and the at least two types of sub-pixels have different pixel voltages at the same brightness. This embodiment improves the color separation display effect and helps to improve the lifespan and efficiency of sub-pixels by setting the pixel voltages of at least two types of pixel characteristics in the monochrome sub-pixel array to be different.

The application discloses a signal reading method, system, device and medium for a multi-target array test strip, and relates to the technical field of fluorescent immunochromatographic detection. The method collects an RGB fluorescent image of the multi-target array test strip; a binary image is obtained through grayscale processing and adaptive threshold segmentation; an effective signal contour is extracted; a spatial position calibration and automatic sorting of discrete fluorescent signals are performed through an intelligent sorting algorithm combining DBSCAN clustering and principal component analysis; non-uniform background interference is removed through a robust local regression method to obtain a purified signal; and finally, real RG ratio signal values of each target point are extracted. The application solves the problems of difficulty in multi-target positioning and incomplete background removal of the existing array test strip signal reading method through an intelligent algorithm, realizes accurate positioning, automatic sorting and efficient purification of multi-target fluorescent signals, and significantly improves detection accuracy. The application is suitable for quantitative analysis of multi-target immunochromatographic test strips.

This invention discloses a method, prediction method, and apparatus for constructing a thermal stress field prediction model for a TSV array, relating to the field of three-dimensional integrated circuit technology. It addresses the problems of traditional TSV array thermal stress prediction methods relying on finite element simulation, which is computationally complex and time-consuming. The construction method includes: obtaining silicon via array parameter samples; performing thermal stress simulation on the silicon via array based on the silicon via array parameter samples to obtain thermal stress field simulation data; and training an initial model of the TSV array thermal stress field prediction model based on the silicon via array parameter samples and the thermal stress field simulation data to obtain a target TSV array thermal stress field prediction model. This invention provides a method for constructing a TSV array thermal stress field prediction model for high-precision and high-efficiency prediction of the thermal stress field of TSV arrays.

The invention discloses a reference data security access method and device, electronic equipment, a terminal, a storage medium and a product. The secure access method comprises the following steps: in response to a memory data access instruction, obtaining an instruction type and an operand; when it is determined that target access data needing to be accessed belongs to target reference data elements according to the instruction type and the operands, a target index matched with the target reference data and target array offset of the target access data in the target reference data are obtained; querying the target index in the reference data table, and when an effective target physical address is queried, obtaining target data attribute information of the target reference data from the target physical address; and performing security access check on the target access data according to the target data attribute information and the target array offset. According to the technical scheme of the embodiment of the invention, the novel reference data which is also used for storing the memory address of the data is provided, and the flexibility and the safety of memory data access are improved based on the reference.

The application discloses a screen pixel array control method and device and a computer readable storage medium, and the method comprises the following steps: in the image frame display process, each array which is divided in advance is scanned according to a preset time sequence; the response stage in which the pixel unit of the target array scanned is obtained; according to the stage type of the response stage, the current of the target array is turned off, or the current of the target array is turned on in combination with the target brightness of the target array. The application realizes a more efficient screen pixel array control scheme, has low implementation cost, can effectively improve dynamic blur, and does not cause significant brightness loss.

The invention relates to the technical field of quantum keys, and discloses a searchable encrypted document management method and device based on a quantum key and a medium. The method comprises the following steps: receiving a query request of a ciphertext carrying a keyword to be queried; determining a target array bit corresponding to the ciphertext of the to-be-queried keyword in the first array and verifying the target array bit; querying in a first character string array associated with the target array bit according to the ciphertext of the keyword to be queried; according to the queried target key value pair, verifying a corresponding array bit in a second array indicated by the target key value pair; and obtaining a document ciphertext in a storage position of a second character string array indicated by the target key value pair, and sending the document ciphertext to the first user, wherein the second character string array comprises at least one document ciphertext. Searchable encryption can be achieved based on the Bloom filter, and meanwhile misjudgment is avoided.

This invention discloses a photovoltaic power station cleaning method and system based on a transport vehicle. The method includes: receiving a cleaning task sent from a backend; driving a transport vehicle carrying a cleaning machine to a target array location based on the cleaning task; sending a cleaning command to the cleaning machine and determining whether the wireless communication connection between the transport vehicle and the cleaning machine is normal; if the wireless communication connection is abnormal, adjusting a first sensing structure on the transport vehicle so that a first proximity unit on the cleaning machine receives a cleaning signal, and the cleaning machine leaves the transport vehicle to begin cleaning; after the cleaning machine finishes cleaning, sensing whether the cleaning machine has returned to the transport vehicle through a second proximity unit on the transport vehicle; wherein the cleaning machine is equipped with a second sensing structure; after confirming that the cleaning machine has returned, driving the transport vehicle to the next target array. This invention allows the system to function normally even when communication between the transport vehicle and the cleaning machine is disrupted.

The invention discloses an array signal space-frequency information fusion processing method and device based on frequency guidance, and the method and device are applied to a field programmable gate array (FPGA). The method comprises the steps: obtaining a plurality of paths of array signals which are received by a target radar array and are used for target detection; performing frequency detection on any path of array signal in the multiple paths of array signals to obtain at least one target frequency value; performing frequency conversion filtering on the multi-path array signal according to the at least one target frequency value to obtain at least one target array signal corresponding to the at least one target frequency value; performing direction of arrival estimation on the at least one target array signal to obtain at least one direction of arrival; and according to the at least one target frequency value and the at least one direction of arrival, determining a corresponding relationship between the target frequency value and the direction of arrival. According to the invention, after frequency measurement is carried out on the single-channel signals, filtering processing is carried out on the multi-channel array signals, then direction of arrival estimation is carried out, frequency retrieval does not need to be carried out subsequently, and the FPGA resource utilization rate is improved.

The invention relates to the technical field of suspended graphene film materials, in particular to a self-supporting graphene array and a preparation method, application and device thereof. The invention provides a preparation method of a self-supporting graphene array, which comprises the following steps: S1, placing a graphene film with a growth substrate in an etching solution, and etching to remove the growth substrate to obtain a graphene film floating on the surface of the etching solution; s2, the graphene film floating on the surface of the etching liquid is transferred to a self-supporting ring, and then air pressure difference is generated on the two sides of the graphene film; a target array substrate is attached to the surface of the graphene film on the low-pressure side, and the self-supporting graphene array is obtained. According to the preparation method provided by the invention, the binding force between the graphene film and the target array substrate is effectively improved, so that the graphene film can be attached to the target array substrate, and the suspension rate is effectively improved.

This application discloses a tunnel scanning method, apparatus, equipment, and medium, relating to the field of tunnel scanning. The method acquires scanning data from any target at each station. The tunnel target array includes a preset target arranged in a closed loop on the tunnel plane and at least two targets to be measured, with the preset target located outside the tunnel entrance and each station positioned between corresponding adjacent targets. Measurement data of the preset target is obtained using a closed-loop scanning method. Translational correction values ​​for each target are obtained from the measurement data and the actual data of the preset target. An angle correction value is obtained from the coordinate transformation matrix of two adjacent targets. The translational and angle correction values ​​are used to correct the scanning data to obtain corrected scanning data. The corrected scanning data provides the coordinate information of each target in an initial coordinate system. The initial coordinate system is constructed with the location of the preset target as the origin. This application can accurately scan tunnels.

The invention discloses an FPV system design method based on forward wave performance, and belongs to the technical field of floating type photovoltaic systems, and the method comprises the following steps: S1, collecting and processing key design elements of an FPV system, S2, calculating the boundary and step length of a design variable by using a dimensionless parameter analysis normal form, S3, calculating the related data of working conditions and forward wave performance, and S4, calculating the design parameters of the FPV system. The method comprises the steps of S1, calculating a working condition name table and a wave-following property table according to the working condition name table and the wave-following property table, S2, calculating a local wave-following property map and an overall wave-following property map of a target array of the FPV system according to the content of the working condition name table and the wave-following property table, S5, obtaining a design interval of FPV system parameters through a map analysis method, S6, limiting the design interval in combination with specific conditions to obtain specific values of design elements of the FPV system, and S5, calculating the wave-following property of the target array of the FPV system according to the specific values of the design elements of the FPV system. By the adoption of the method, the response characteristics of the FPV system when the FPV system deals with the wave load are reflected along the wave, and meanwhile optimization design of key parameters of the FPV system is reversely guided.