38 results about "Simple computation" patented technology

The invention provides a power distribution area multi-source data fusion state evaluation method and system based on the Internet of Things, relates to the technical field of multi-source data fusion, and more specifically, multi-source data during operation of a power distribution area is collected, and a distributed edge-cloud cooperative computing architecture is used to evaluate the multi-source data fusion state of the power distribution area. Relatively simple calculations such as data preprocessing and feature extraction are processed based on a distributed edge calculation module; after processing, a corresponding result is output through an evaluation model of the cloud, so that the calculation efficiency is greatly improved, and the fault response speed is improved; in addition, the established evaluation model can adaptively adjust the weight so as to dynamically adapt to different scenes, and the evaluation accuracy of the model is improved.

The invention provides a vehicle target detection method based on lightweight YOLOv8, on the basis of a YOLOv8 model, related parts are innovated aiming at detection precision and speed, the method is named as HAF-YOLOv8, firstly, in order to avoid that a backbone network of a detector extracts redundant features, and then, the backbone network of the detector extracts the redundant features; the Faster Net containing the PConv is used for reducing redundant calculation and memory access and extracting spatial features more effectively at the same time; then, a focus modulation-based self-adaptive adjustment view field mechanism FocalNet is used for replacing an original SPPF method, and compared with a self-attention mechanism, the method has a simpler calculation process and lower complexity; and finally, selecting a converter Bi-Former of a double-layer routing dynamic sparse attention mechanism as a newly added module of the backbone network at the end of the backbone network, and filtering out the most irrelevant area to save the parameter quantity and the calculation quantity so as to realize more flexible and effective calculation distribution and content awareness.

To estimate a processing time and / or a calculation time at high speed using simple calculations, and update the processing time and / or calculation time with a high accuracy, although the calculation time is required. The machining time prediction device (1) includes a simple prediction unit (10) that reads and interprets an NC command and calculates a first block movement time based on at least the distance and feed rate or time for each block, a parameter acquisition unit (12) that acquires parameters used in driving and controlling a numerically controlled machine tool, a precise prediction unit (11) that calculates a second block movement time based on at least the NC command and the parameters, a block movement time update unit (13) that updates the first block movement time with the second block movement time to calculate a machining time, and a machining time output unit (14) that outputs the machining time, and the machining time output unit (14) outputs the machining time calculated by the block movement time update unit (13) by updating the first block movement time with the second block movement time under predetermined conditions.

The embodiment of the invention provides a house type distribution cover picture generation method and device, a storage medium and a program product. In the embodiment of the invention, the cover image of the virtual three-dimensional scene is generated based on the virtual three-dimensional scene of the target space object, and particularly, some simple calculation processing is carried out based on the space size of the target space object to determine the focus and the position of the virtual camera; the method comprises the following steps: directly shooting a target space object in a virtual three-dimensional scene by using a virtual camera to obtain an initial image, and adjusting a focus and a position of the virtual camera to optimize the image through a specified cover image boundary requirement until a target image meeting the requirement is shot as a cover image; therefore, an attractive and practical house type distribution cover picture is efficiently and accurately generated, and the experience of a user when the user browses real estate projects by using a virtual reality technology is improved.

According to the present invention, multiple parametrically encoded audio signals can be efficiently combined using an audio signal generator, which generates an audio output signal by combining the down-mix channels and the associated parameters of the audio signals directly within the parameter domain, i.e. without reconstructing or decoding the individual input audio signals prior to the generation of the audio output signal. This is achieved by direct mixing of the associated down-mix channels of the individual input signals. It is one key feature of the present invention that the combination of the down-mix channels is achieved by simple, computationally inexpensive arithmetic operations.

The utility model belongs to the field of nutrition intake calculation, and particularly relates to a multilayer disc for calculating daily intake potassium content, which comprises a caliper plate, a display plate rotatably connected to one side of the caliper plate, a first prompt plate and a second prompt plate fixedly connected to the top and the bottom of the display plate respectively, and a fixing rod fixedly connected to the top of the caliper plate. A fixing ring block is fixedly connected to the surface of the fixing rod, and a plurality of hollow grooves are formed in the top of the fixing ring block; according to the utility model, the rotating ring blocks at different positions are rotated to smoothly rotate the prompting blocks and the marking blocks corresponding to ingestion food to the bottoms of the fan-shaped blocks, and before use, the total potassium content of the selected food at the bottoms of the fan-shaped blocks is calculated, so that whether the food can be eaten or not is judged; by means of the method, it is convenient for people to calculate the potassium element taken every day, and the old can also conduct simple calculation and use.

The present invention updates a highly accurate operating time and / or machining time for which an operating time is required, while the operating time and / or machining time is quickly estimated by a simple calculation. A device for predicting machining time (1) comprises: a simple prediction unit (10) that reads and interprets an NC command and calculates a first block movement time based on at least the distance of each block and a feed rate or time; a parameter acquisition unit (12) that acquires a parameter used in the drive and control of a numerically controlled machine tool; a precision prediction unit (11) that calculates a second block movement time based on at least the NC command and the parameter; a block movement time update unit (13) that uses the second block movement time to update the first block movement time and thereby calculate a machining time; and a machining time output unit (14) that outputs the machining time.The output unit for processing time (14) outputs the processing time calculated as a result of the block movement time update unit (13), using the second block movement time to update the first block movement time under a predetermined condition.

To accurately evaluate data variability in flow cytometry using simple calculations. [Solution] The data processing device 12 is a signal processing device that processes the output of the photomultiplier tubes 11a to 11d and is equipped with a processor. The processor is configured to acquire, in a time series, the intensity signals output by the photomultiplier tubes 11a to 11d that detect signal light generated by flow cytometry using a flow cytometer targeting multiple test samples, aggregate the frequency distribution of the intensity signals based on the digital values ​​DN of the time series intensity signals to generate a histogram, fit the histogram using an exponential function to calculate a ρ value that represents the variation of each peak in the frequency distribution, and perform data analysis using the ρ value for the intensity signals output by the photomultiplier tubes 11a to 11d obtained by flow cytometry targeting multiple target samples.

The invention discloses a space attitude angle calculation method and device, electronic equipment and a storage medium. The method comprises the following steps: periodically acquiring system attitude information of a target mobile device; and reference state information and reference error information of the current period are determined, the reference state information is used for representing the spatial attitude of the target mobile device at the beginning of the period, and the reference error information is used for representing the error of the reference state information at the beginning of the period. And calculating target state information and target error information of the current period according to the system attitude information, the reference state information and the reference error information. And determining a space attitude angle of the target mobile device in the current period according to the target state information. According to the embodiment of the invention, the space attitude angle can be periodically detected in real time through a simple calculation process, and the reference state information and the reference error information are introduced in the detection process of each period to assist calculation, so that the precision of a calculation result is improved under the condition that the accuracy of the system attitude information is relatively low.

The present application provides a parameter estimation method, system, medium and equipment for a three-dimensional rock strength theory, which belongs to the technical field of testing or analyzing materials by measuring the chemical or physical properties of materials. First, the correlation between experimental data is determined based on the lateral confinement compression test and the lateral confinement tension test, and the three-dimensional rock strength theory is selected based on the correlation. Then, the three-dimensional strength theory is degenerated into a two-dimensional form, and the two degenerated forms are used to make a preliminary prediction of the rock strength of two boundary stress states under the same minimum principal stress, and the size relationship between the two predicted rock strengths is judged, and the size relationship is compared with the size relationship between the rock strengths obtained by the lateral confinement compression test and the lateral confinement tension test. According to the comparison result, one of the two groups of experimental data is selected to carry out three-dimensional parameter estimation. This method can achieve reliable estimation of the three-dimensional rock strength theory parameters by rationally utilizing experimental data and only requiring simple calculation tools.

The present invention relates to the field of wireless communication technologies, and particularly to a RIS-assisted co-cellular massive MIMO coexisting communication channel estimation method, including: deploying M access points (APs), K RISs, and K single-antenna users in a co-cellular massive MIMO network; in the uplink pilot transmission phase, all users simultaneously send pilot and data signals to all APs, and the data signals sent in each time slot are the same; the RIS also sends pilots simultaneously, and uses a binary phase shift keying method for simple processing, allowing the RIS to successively send pilots with two symbols of "+1" and "-1" to the APs. After each AP receives the signals from the direct link and the indirect link, a simple calculation process is performed on the signals received in the previous time slot and the next time slot, and then channel estimation is performed on both of them respectively. The present invention uses a smaller sequence to obtain better channel conditions, reduces the time slot overhead, and has low mean square error and low complexity.

The invention discloses a frame rate control method, which belongs to the field of image acquisition, and comprises the step of adjusting the frame rate of a next frame image according to the motion state, speed and pixel change rate of a current frame image relative to a previous frame image. The motion state comprises integral movement and non-integral movement; firstly, whether overall movement occurs is judged; when the movement is overall movement, determining the initial frame rate of the next frame of image according to the speed of the current frame of image, and then determining the final frame rate of the next frame of image according to the pixel change rate of the current frame of image relative to the previous frame of image and the initial frame rate of the next frame of image; and if not, determining the final frame rate of the next frame of image directly according to the pixel change rate of the current frame of image relative to the previous frame of image. According to the method, the frame rate of the next frame of image can be dynamically adjusted only through simple calculation and judgment, good adaptability is achieved for a dynamic scene, and the collection quality of the next frame of image can be ensured so that back-end processing can be facilitated.

A determination method for a chroma intra prediction mode includes: performing a simple RDO calculation on a luminance value of each pixel of an image block to obtain multiple luminance candidate modes; determining multiple chroma candidate modes according to one of the luminance candidate modes and a chroma simple RDO result calculated by performing a simple RDO calculation on a chroma value of each pixel of the image block; performing a full RDO calculation of the multiple luminance candidate modes on the luminance value of each pixel in the image block to select a luminance target mode; performing a full RDO calculation of the multiple chroma candidate modes on the chroma value of each pixel of the image block to a obtain chroma full RDO result; and determining a chroma target mode according to the luminance target mode and the chroma full RDO result.

This application discloses a multi-attribute tunable three-dimensional mechanical metamaterial structure and its design method, relating to the field of mechanical metamaterials. This application provides a novel unit cell structure, and the properties of this three-dimensional mechanical metamaterial structure are related to the characteristic parameters of the unit cell structure. Therefore, by adjusting the characteristic parameters of the unit cell structure, the Poisson's ratio, compressibility coefficient, and coefficient of thermal expansion of the three-dimensional mechanical metamaterial structure can be adjusted. During the design process, through a combination of finite element analysis and theoretical analysis, and by simple calculation analysis and optimized selection of characteristic parameters, the three properties of the three-dimensional mechanical metamaterial structure can be individually controlled. This allows the three-dimensional mechanical metamaterial structure to possess the desired target properties, filling a gap in the industry and possessing significant industrial practical value. It can meet the actual needs of new advanced equipment with multiple functions and applications.

The present application discloses a motion platform compensation method that takes into account overall deviation, which relates to the field of industrial technology. The method places a standard calibration plate containing several calibration points with known theoretical positions on the motion platform of the device to be calibrated, uses the device to be calibrated to detect and determine the actual position of each calibration point on the standard calibration plate, and then calculates the lateral tilt angle and longitudinal tilt angle based on the actual position of each calibration point. The actual position of each calibration point is then rotated and sheared to obtain the actual position after compensation. The method performs overall error modeling on the motion platform of the device to be calibrated, considering the error characteristics of the motion platform as a whole, thereby improving the accuracy and reliability of calibration. The method achieves a higher calibration effect with a relatively simple calculation method and a lower cost. Based on the established model, the error trend under specific conditions can be predicted, so that measures can be taken in advance to prevent the occurrence or expansion of errors.

This invention discloses a verifiable federated learning method based on hybrid homomorphic encryption. Its key feature is that, on a centralized client-server architecture for federated learning, it employs hybrid homomorphic encryption technology supporting SIMD operations to encrypt data. While ensuring data privacy and correct aggregation, it leverages the advantages of symmetric encryption—simple computation and no ciphertext inflation—to overcome the shortcomings of public-key homomorphic encryption schemes, which are computationally complex and suffer from severe ciphertext inflation. A verification code is constructed using Lagrange interpolation, allowing the client to verify the aggregation results. Specifically, it includes steps such as system initialization, model training and data encryption, aggregation, aggregation result verification, and model updating. Compared with existing technologies, this invention ensures user gradient confidentiality, aggregation correctness, and the integrity of aggregation results during the federated learning aggregation process, while reducing the number of public-key encryption operations, alleviating computational and communication burdens, and significantly improving efficiency.

The invention provides a multi-pulse radar detection system and method for resisting harmonic deception jamming, and the method comprises the steps: transmitting pulse signals with a plurality of frequency modulation slopes through differential setting, and carrying out the pulse compression of received waves; according to the characteristic that the position of a real target is fixed and the position of a false target is shifted during pulse compression processing of radar signals with different parameters, the purposes of energy accumulation at the real target and false peak energy elimination at the false target are achieved by analyzing the time-domain characteristics after pulse compression processing of the signals and performing combined processing. According to the method, additional auxiliary judgment is not needed, self-adaptive processing capacity is achieved for position judgment and energy elimination of all pseudo peaks, meanwhile, simple calculation modes such as query, addition and subtraction are mainly adopted in the algorithm, and the method has the advantage of being small in calculation amount.

The present invention discloses a single-ended protection method and system for a multi-terminal DC system based on transient current variance. For a multi-terminal DC system, the sampling window of the protection method is determined according to the system parameters based on the principle that the sensitivity of the protection method is as high as possible and the transient variance current error is as small as possible; the protection threshold is set according to the system parameters and the sampling window length based on ensuring selectivity; the high-frequency energy of the current signal is extracted based on the transient variance. If it is greater than the protection threshold, it is judged as an in-zone fault and the protection action is executed; if it is less than the threshold, the protection action is not executed. This method does not rely on simulation, and uses simpler calculations to extract the high-frequency component of the electric quantity. The analytical solution of the protection threshold can be theoretically calculated, which ensures the selectivity of the protection method, has strong resistance to external noise, and has high sensitivity and good resistance to transition resistance.

The current control gain of a motor is adjusted with a simple configuration and simple calculation. [Solution] The electric motor control device according to the present disclosure includes a current command unit that generates a step-like current command value, a current control unit that controls the value of a current flowing through the electric motor so as to follow the current command value, and a gain calculation unit. The gain calculation unit compares the actual value of the current flowing through the electric motor when the time elapsed since the generation of the current command value becomes a reference time with a reference current value associated with the reference time, or compares the time elapsed since the generation of the current command value until the current flowing through the electric motor becomes the reference current value with the reference time associated with the reference current value, and calculates a control gain for the current control unit according to the comparison result.

The application discloses a monocular 3D target detection method based on deep dynamic center difference convolution, and belongs to the technical field of automatic driving. The application comprises the following steps: acquiring an image, determining an anchor frame pre-design, inputting the preprocessed image into a main feature extraction network, extracting semantic information, performing classification branch and regression branch on the output feature map, performing post-processing operation on the category information and regression information, and obtaining the category and 3D bounding box of the target in the RGB image. In the depth estimation of monocular 3D target detection, the deep dynamic center difference convolution is used to replace the traditional convolution, the deep dynamic operation makes the network consider the depth information, the local size information and the geometric information of each sample at the same time, the center difference further improves the refinement degree of the network at each pixel, and only simple calculation is used without occupying too much memory. The accuracy of depth estimation is improved, and the precision of monocular 3D target detection is finally improved.

The invention discloses a compiling method. The method comprises the following steps: designing a compiling framework of a target language; designing a class interface and a class of the target language; loading a compiling framework of a target language and a class interface definition; loading a source program to be compiled; performing semantic analysis on the source program and generating an abstract semantic tree; analyzing each node of the semantic tree, and analyzing each node into a plurality of codes of a target language according to definitions and rules in the compiling framework; the generated target code is optimized; and outputting and storing the target language code. The method has the beneficial effects that a computer language code with a complex grammar can be compiled from a computer language code with a simple grammar, so that the learning difficulty is reduced, the programming efficiency is improved, and the application field of a computer language is expanded.

The invention relates to a method for determining the construction status of a building, wherein the method is executed by a computer based on optically acquired measurement data of the building, the measurement data being processed as a point cloud with a horizontal plane as the sheet plane and a height axis perpendicular to the sheet plane, wherein the method comprises at least the following steps in the aforementioned order: a. creating at least one section in the horizontal or vertical plane from the point cloud; b. capturing point-free areas in each of the sections; and c. creating a boundary around each captured point-free area. With the method proposed here, an exact shape and position of the building structure can be determined using simple computer-aided means based on an optically generated point cloud.

According to the present invention, multiple parametrically encoded audio signals can be efficiently combined using an audio signal generator, which generates an audio output signal by combining the down-mix channels and the associated parameters of the audio signals directly within the parameter domain, i.e. without reconstructing or decoding the individual input audio signals prior to the generation of the audio output signal. This is achieved by direct mixing of the associated down-mix channels of the individual input signals. It is one key feature of the present invention that the combination of the down-mix channels is achieved by simple, computationally inexpensive arithmetic operations.

The present application provides a channel quantization table construction method, an indoor visible light communication system and an electronic device, wherein the channel quantization table construction method comprises: dividing the receiving plane into N sub-areas; quantizing the actual channel gain values ​​of each point in the N sub-areas into the same channel gain value according to a preset rule; and constructing a channel quantization table of an indoor visible light communication system according to the N sub-areas and the quantized gain values ​​corresponding to each sub-area. The technical solution provided by the present application is that the transmitting end can quickly obtain the channel information between the user and each light source through table lookup and simple calculation based on the location information fed back by the terminal and the stored light source information, thereby reducing the computational complexity of channel information acquisition.

Embodiments of the application provide a thin-walled section torsion center determination method and device, electronic equipment and storage medium, relating to the torsion center determination field, the method comprises: determining the section data of the thin-walled section to be calculated, wherein the section data comprises the height of the thin-walled section to be calculated, the width of the thin-walled section to be calculated, the web wall thickness of the thin-walled section to be calculated, the upper and lower wall thickness of the thin-walled section to be calculated, the wing plate wall thickness of the thin-walled section to be calculated, and the area of the thin-walled section to be calculated, obtaining the first parameter, the second parameter and the third parameter of the torsion center calculation algorithm based on the section data of the thin-walled section to be calculated, calculating the first ratio of the first parameter and the second parameter, and calculating the second ratio of the first ratio and the third parameter as the torsion center of the thin-walled section to be calculated, the application directly calculates the torsion center of the thin-walled section based on a simple calculation method, improving the efficiency of determining the torsion center.

The invention provides a gesture recognition method and system based on electromyographic signals. The method comprises the steps that the electromyographic signals generated when a wrist or an arm executes gesture actions are converted into signal segments based on a window cutting method; clustering the signal segments based on an unsupervised learning method, and dividing the signal segments into a plurality of clusters; extracting an optimal feature from each cluster based on an optimal path search algorithm; and obtaining a gesture category according to the optimal feature of each cluster based on an SVM classifier. According to the method, the accuracy of gesture recognition is effectively improved through multi-stage optimization of signal processing and classification steps, and more efficient and more accurate gesture recognition can be realized by using a simple computing environment in a complex environment.

The utility model relates to the technical field of tunnel detection equipment, in particular to a tunnel construction steel frame installation space size and gradient inspection device which comprises a cross rod with a cavity, a vertical rod located in the center of the cross rod and perpendicularly connected with the cross rod, and baffles arranged at the two ends of the cross rod in a sliding mode. A measuring assembly is arranged in the vertical rod and used for measuring the distance between the two baffles. According to the utility model, the baffle plates move outwards by sliding the adjusting rod upwards, so that the distance between the two baffle plates is enlarged until the baffle plates abut against the edge of the arch frame, the reading of the graduated scale is observed, the measuring line value can be measured through simple calculation, namely the design length of a 2X + original instrument, the structure is simple, the cost is low, and mass production can be realized.

The application discloses a method for calibrating a convex quadrilateral in an image, an electronic device and a computer readable medium. In a software calibration stage, coordinates of four vertices of a nearest neighbor rectangle of the convex quadrilateral in the image are calibrated in sequence, and step residuals of four edges are calculated. In a hardware calibration stage, processing is performed in an image raster scan order, and a rectangular region is calibrated according to the four vertices of the nearest neighbor rectangle. Step residuals of the four edges of the convex quadrilateral are used to sequentially calibrate difference regions between each edge and the rectangle. The nearest neighbor rectangular region is excluded from the difference regions, and the remaining convex quadrilateral is the required calibration. Therefore, the function of calibrating the convex quadrilateral in the image can be realized by simple calculation, and the multiplier is not required in the hardware to calibrate the convex quadrilateral, so that the hardware implementation area is greatly saved.

To adjust a current control gain of a motor by performing simple calculation, with a simple configuration.SOLUTION: A controller of a motor according to the present disclosure comprises a current command part for generating a stepwise current command value, a current control part for controlling a current value flowing to the motor so as to follow the current command value, and a gain calculation part. The gain calculation part calculates a control gain at the current control part according to a comparison result obtained by comparing an actual current value flowing to the motor when an elapsed time from generation of the current command value becomes a reference time with a reference current value associated with the reference time, or by comparing another elapsed time till the current flowing to the motor becomes the reference current value from the generation of the current command value with the reference time associated with the reference current value.SELECTED DRAWING: Figure 1