9results about How to "Avoid low accuracy" patented technology

This invention relates to a method, apparatus, medium, device, and product for intelligent mail delivery. The method includes: acquiring electronic mail from citizens to be delivered; extracting features from the electronic mail to obtain mail feature data; extracting keywords from the electronic mail; determining candidate delivery departments based on the mail feature data and the keywords; selecting a target delivery department from the candidate departments; and delivering the electronic mail to the target delivery department. This application can improve the accuracy and efficiency of mail delivery.

A modular pin needle visual detection method, a detection server, a medium and a product relate to the field of machine vision detection. The method comprises: acquiring a standard model of a connector; acquiring a product image through a visual detection module; calculating a first actual coordinate of an anchor point in the product image through an image recognition algorithm; calculating an actual offset angle of the placement position of the connector according to the first actual coordinate and the first standard coordinate of the anchor point; establishing a detection coordinate system according to the actual offset angle and the actual coordinate system; determining a scanning path of the visual detection module; acquiring scanning images of each pin needle through the visual detection module according to the scanning path; calculating second actual coordinates of each pin needle according to the detection coordinate system and the scanning images; and performing abnormal detection on each pin needle to obtain a detection result. The technical scheme of the present application effectively improves the detection accuracy of the pin needle and avoids the problem of reduced detection accuracy of the pin needle caused by the deviation of the placement position of the connector.

This application discloses a method, apparatus, and electronic device for placing goods using an AGV, to improve the accuracy of goods placement by the AGV. The method includes: determining, based on a captured image, the horizontal distance between the AGV and a first reference line, and a first angle between the AGV and the first reference line; wherein the captured image is an image captured by an image acquisition device; determining whether the horizontal distance is less than a first threshold and whether the first angle is less than a second threshold; if so, controlling the AGV to enter a correction area until the distance between the AGV and a stop indicator in the ground markings is less than a third threshold, and placing the goods in a target area within the correction area; wherein the correction area includes the ground markings.

This invention relates to material testing, specifically to a method for detecting defects in steel pipe columns used for foundation reinforcement. The method includes: acquiring echo signals received after emitting acoustic waves onto the steel pipe column; dividing the echo signals into multiple periodic segments; determining the probability of anomalies in each periodic segment based on its own waveform characteristics and the waveform characteristic differences between adjacent periodic signals; determining the multipath difference value between each periodic segment and the first periodic signal based on the multipath characteristics of the signal; determining the degree of distortion in each periodic segment based on the probability of anomalies and the multipath difference value; and determining the defects in the steel pipe column based on the degree of distortion of each periodic signal. This method can improve the accuracy of defect detection in steel pipe columns used for foundation reinforcement.

The utility model discloses a power transmission line tree obstacle detection device, and relates to the technical field of tree obstacle detection, the power transmission line tree obstacle detection device comprises an unmanned aerial vehicle, a connecting part and a detection mechanism used for detecting the tree obstacle distance, the detection mechanism is connected with the unmanned aerial vehicle through the connecting part, and the gravity centers of the connecting part and the detection mechanism are located under the gravity center of the unmanned aerial vehicle; the unmanned aerial vehicle is used for carrying the detection mechanism to detect the tree barrier distance, the convenience is improved compared with a heavy theodolite, the problem that the precision is low when the tree barrier distance is manually judged can be avoided through the arrangement of the detection mechanism, and the detection effect is improved; in addition, the gravity centers of the connecting part and the detection mechanism are located under the gravity center of the unmanned aerial vehicle, the flight stability of the unmanned aerial vehicle can be guaranteed, and the detection effect of the detection mechanism can be improved along with improvement of the flight stability.

Embodiments of the present application provide a kind of server attack determination method, device, storage medium and electronic device, wherein the method comprises: when obtaining first data packet set, determine the first quantity of data packet in first data packet set, wherein first data packet set includes the data packet that front end acquisition equipment transmits to back-end server in first period;When the difference between first quantity and second quantity is greater than or equal to first predetermined threshold, determine the third quantity of data packet in first data packet subset in first data packet set, second quantity indicates the data packet quantity that front end acquisition equipment transmits to back-end server in second period, and the length of data packet in first data packet subset is within the preset length range;According to third quantity and second predetermined threshold, judge whether back-end server is attacked.Through the embodiments of the present application, the technical problem that the accuracy of determining whether the server is attacked in the related art is low is solved.

The application discloses a clothes material information acquisition method and a washing and protecting device. The clothes material information acquisition method comprises the following steps: acquiring the near-infrared spectrum of a detection area in an empty cylinder state; and after clothes are put into the cylinder, acquiring the near-infrared spectrum of the detection area for multiple times. The near-infrared spectrum acquired after the clothes are put in is analyzed, the spectrum close to the near-infrared spectrum acquired in the empty cylinder state is excluded, and the remaining near-infrared spectrum is analyzed. The clothes material information acquisition method of the application excludes the interference of the near-infrared spectrum of the empty cylinder on the near-infrared spectrum of the clothes, and the clothes material information detected and acquired is high in accuracy, simple and convenient, and harmless to the fabric. The washing and protecting device has the characteristics of improved washing and protecting effect, reduced energy consumption and higher intelligence.

This application provides a target monitoring method and system based on a low-altitude economic drone, relating to the field of image detection technology. In this application, firstly, target area monitoring video frames are acquired from the low-altitude economic drone; then, the target area monitoring video frames are denoised using non-local means to obtain denoised region monitoring video frames. During the non-local means denoising process, noise perception truncation is performed, ensuring that the similarity weights of video frame pixels with Euclidean distances greater than a predetermined reference distance are set to 0, thus preventing dissimilar video frame pixels from participating in the mean processing; finally, anomaly detection is performed on the denoised region monitoring video frames to obtain region anomaly detection results, reflecting whether abnormal behavior exists in the target area. Based on the above, the relatively low accuracy of anomaly monitoring in existing technologies can be improved.

This invention relates to the field of evaluation management, specifically to a method and platform for standard performance management based on dynamic evaluation. The platform includes: a standard publishing system, a standard evaluation management system, and a standard performance work system. The standard publishing system is used by standard evaluation units to input standard content, standard evaluation requirements, standard dynamic evaluation requirements, and standard dynamic evaluation rules. The standard evaluation management system automatically determines the compliance of corresponding standard evaluation data, generates and stores the standard evaluation results, and sends it to the standard performance work system of the evaluation entity. Then, it generates an evaluation digital identifier QR code based on the standard evaluation results and sends it to the evaluation entity client. The standard performance work system is used by the evaluation entity client to submit dynamic performance execution data, automatically determines the compliance of the dynamic performance execution data, and then automatically updates the latest dynamic evaluation result information to the information recorded in the evaluation digital identifier QR code.