11results about How to "Avoid erasure" patented technology

The invention discloses a high-performance low-complexity LDPC (Low Density Parity Check) decoding method for satellite communication, and belongs to the field of digital signal processing. And performing iterative decoding on the received channel information based on a low density parity check (LDPC) code in the 5G standard. The implementation method comprises the following steps of: dynamically setting an erasing range by utilizing the amplitude of current check node information when a variable node is updated; the amplitude of check node information is gradually increased along with the increase of the number of iterations, the whole iteration process is divided into two parts, and the erasing range is set by adopting different parameters. And outputting the decoding result when the decoding result is correct or reaches the maximum number of iterations. According to the method, the reliability of variable node information is improved through the two points, reliable variable information is prevented from being erased, unreliable variable node information is prevented from being spread, and excellent decoding performance is achieved. Non-linear operation in a log-likelihood ratio belief propagation algorithm LLR-BPA does not exist in the decoding algorithm, and the decoding algorithm has the advantages of being high in decoding performance and low in decoding complexity.

The invention relates to the technical field of low-temperature casting, and discloses an automobile aluminum alloy hub low-temperature casting device which comprises a casting table, a supporting frame is fixedly connected to the upper surface of the casting table, a die-casting machine is fixedly connected to the upper surface of the supporting frame, and a linear motor is fixedly connected to the upper surface of the casting table. According to the hub casting device, the movable clamping block cannot be continuously fixed to the pressing plate after being not locked by the plug pin, so that the upper die base can be rapidly detached, then the upper die bases with different diameters are replaced according to the inner diameter of a hub needing to be cast, and the hub casting efficiency is improved. The upper die base can be rapidly installed on the pressing plate by pushing the plug pin to be inserted into the movable clamping block, the applicability of the device is improved, the use convenience is also improved, the movable lower die plate is pulled away from the clamping frame in advance, and the situation that the machining efficiency is reduced due to the fact that the upper die base cannot take up the hub blank due to adhesion of the hub blank and the movable lower die plate can be avoided.

Embodiments of the present application provide an IAP upgrading method, device, electronic equipment and storage medium. The IAP upgrading method comprises: during running a starting program, when a upgrading instruction is read, acquiring an application program; reading program storage occupation information of the starting program; determining a first physical address range corresponding to the starting program based on the program storage occupation information, the first physical address range comprising a first physical end address; and offsetting to the first physical end address to burn the application program. In the embodiments of the present application, the first physical address range corresponding to the starting program is determined based on the program storage occupation information of the starting program, the starting program and the application program are partitioned in the physical address, the application program is burned by offsetting to the end address, the physical address of the starting program is locked, the starting program is prevented from being erased by the application program, the invalidation risk of the starting program is reduced, the implementation of the upgrading process is ensured, and the IAP upgrading success rate is improved.

The present application relates to the technical field of image processing, in particular to a fisheye lens image pixel-level edge enhancement and denoising method, comprising: a data acquisition step: acquiring original fisheye image data and preset fisheye lens optical distortion parameters; a weight generation step: determining the distortion stretching rate of a pixel point according to the optical distortion parameters; and generating a spatial density weight map; a threshold determination and denoising step: determining a target denoising threshold according to the spatial density weight map; denoising the original fisheye image data to generate an intermediate denoising image; a convolution kernel generation step: generating an adaptive curved surface convolution kernel according to the optical distortion parameters; an edge enhancement step: using the adaptive curved surface convolution kernel to perform edge enhancement processing on the intermediate denoising image; and generating an enhanced image; the present application effectively avoids the risk of irreversible erasure of key semantic features in the edge field, and ensures high-reliability feature preservation in the extreme field.

This invention discloses a method for detecting minute defects in cigarette boxes based on a CDM-YOLOv8 network, comprising: Step 1, acquiring an image of the cigarette box surface and constructing a defect detection dataset; Step 2, performing feature extraction enhancement on the input image, extracting defect-related features through multi-branch convolution, deformable convolution, and spatial attention mechanisms; Step 3, dynamically fusing features at different scales, and performing frequency domain banding processing on the fused features during the downsampling stage, employing a differentiated downsampling strategy to preserve defect edge and texture information; Step 4, outputting the category and location information of the defects based on the detection head. This invention solves the problems of easy loss of minute defects in cigarette boxes during downsampling and easy missed detection in complex backgrounds. By enhancing feature representation capabilities and preserving high-frequency defect information while ensuring computational efficiency, it improves the detection accuracy of minute defects in cigarette boxes and reduces the missed detection rate.

This invention discloses a video action recognition method using a time-progressive feature fusion token dictionary modeling approach, comprising: acquiring an original video frame sequence; generating multiple multi-scale video segments containing different time scales based on a time-progressive strategy; processing the multi-scale video segments separately using a feature extraction model to extract local spatiotemporal features corresponding to each time scale; progressively interacting the local spatiotemporal features of each scale with a pre-initialized auxiliary token dictionary in ascending order of time scale, dynamically updating the auxiliary token dictionary in each interaction to generate enhanced spatiotemporal features corresponding to each scale; dynamically generating fusion weights for the enhanced spatiotemporal features of multiple scales and performing feature fusion to obtain global multi-scale fused features; and outputting action classification results using a classification model based on these features. This invention solves the technical problems of insufficient long-term dependency modeling, semantic drift, and interference from complex backgrounds in existing technologies.

The invention relates to an electric power machine patrol image enhancement method and device based on semantic consistency and reinforcement learning. The method comprises the following steps: acquiring an original electric power inspection image, inputting the original electric power inspection image into a semantic segmentation network, and extracting noise components in the original electric power inspection image; component carrying information of the noise component is collected, and the information missing degree of the denoised original electric power inspection image is determined; collecting shielding information of noise components, and determining an artifact introduction degree of the de-noised original electric power inspection image; determining an associated image of the original electric power inspection image, and calculating a linkage observation degree between the de-noised original electric power inspection image and the associated image; and based on the information missing degree, the artifact introduction degree and the linkage observation degree, determining the de-noising degree of the de-noised original electric power inspection image, and performing enhancement processing on the original electric power inspection image according to the de-noising degree. By adopting the method, the reliability of image enhancement processing can be improved.

The invention relates to a log sending method and device of an electronic control unit and a storage medium. The method comprises the following steps: receiving a log calibration instruction sent by an upper computer; the log calibration instruction comprises a target log unit type and a target log state type; storing an original log corresponding to the target electronic control unit into a target cache region; adding mark information to the original log in the target cache region; the unit type of the target log is a target log unit type, and the state type of the target log is a target log state type; receiving a log output instruction of the upper computer; the log output instruction comprises a log output initial address; and starting to send the target log carrying the first mark information from the log output initial address. According to the method and the device, the running logs of different states of each software module of the electronic control unit can be output, so that a user can record the state of each software module in real time in a development process or a problem positioning process.

The invention relates to the technical field of image processing, in particular to a fisheye lens image pixel-level edge enhancement and denoising method, which comprises the following steps: a data acquisition step: acquiring original fisheye image data and preset fisheye lens optical distortion parameters; a weight generation step: determining the distortion stretch rate of the pixel points according to the optical distortion parameters; generating a spatial density weight map; a threshold determination and denoising step: determining a target denoising threshold according to the spatial density weight map; de-noising the original fisheye image data to generate an intermediate de-noised image; a convolution kernel generation step: generating a self-adaptive curved surface convolution kernel according to the optical distortion parameters; an edge enhancement step of performing edge enhancement processing on the intermediate de-noised image by using an adaptive curved surface convolution kernel; generating an enhanced image; the risk that key semantic features of the edge view field are irreversibly erased is effectively avoided, and it is ensured that high-reliability feature retention is achieved in the extreme view field.

The present invention belongs to the technical field of transmission shaft detection, and discloses a high-damping composite material transmission shaft dynamic performance testing machine; it comprises a processing table, and a detection machine is fixedly connected to the top of the processing table. The device can start the hydraulic cylinder to push the lower cleaning plate, the L-shaped rod and the first rack to move upward by arranging a cleaning component, and the gear, the rotating rod and the connecting plate are driven to rotate by the first rack, so that the upper cleaning plate can be driven to flip to the top of the lower cleaning plate, so that the plug is inserted into the socket, and then the pump is started to pump water in the water tank into the upper cleaning plate and the lower cleaning plate, so that the surface of the transmission shaft body at the center can be washed, and the impurities attached to the outer wall of the transmission shaft body can be washed clean, and the cleaning component is driven to move back and forth by the driving component, so as to prevent the attached impurities from affecting the detection result of the transmission shaft, and solve the problem that the impurities attached to the surface of the transmission shaft affect the test result.

The present invention discloses a test circuit and method for changing flash read protection, comprising the following steps: (1) completing the test circuit connection work; (2) burning the test program into SRAM and starting it; (3) judging whether the register FLASH_OBR is the initial value, if so, writing the content into the flash, and writing the mark value to restart the program; (4) judging whether the register is the written mark value, if so, modifying the value of the read protection bit to restart the program; (5) judging whether the value of the read protection bit is the modified value, if so, detecting the written content; (6) judging whether the written content is erased, if so, verifying that the change of the flash read protection level will cause the program to be erased. The present invention burns the test program into the SRAM of the chip, and starts from the SRAM, so as to avoid erasing the test program in the flash, and by writing the mark value into the register, the program can be prevented from entering an endless loop of continuous restarting.