6results about How to "Valid match" patented technology

This invention belongs to the field of near-infrared luminescent materials technology, and provides a tungstate-based broadband near-infrared luminescent material, its preparation method, and its applications. The preparation method includes: (1) weighing SrCO3, La2O3, WO3, and Bi2O3 raw material powders respectively; (2) grinding the weighed raw material powders in an agate mortar, obtaining a mixture after grinding, and pouring the mixture into a clean alumina crucible; (3) transferring the alumina crucible containing the mixture to a high-temperature box furnace for sintering to obtain the tungstate-based broadband near-infrared luminescent material. This tungstate-based broadband near-infrared luminescent material can achieve continuous control of luminescence behavior by adjusting the concentration of doped ions, the external field temperature, and the excitation wavelength. This tungstate-based luminescent material has wide applications and can be used in lighting, bioimaging, temperature sensing, anti-counterfeiting coding, multi-channel optical information storage / encryption, and many other fields.

The application discloses a kind of urban rail transit signal system risk refinement grading method, comprising: basic data preprocessing, the correlation of scene and risk point under the construction of different scenarios, the risk index of each risk point is calculated, high-risk transmission path and key risk node are identified, and the risk level result for different scenarios is formed by fine classification risk, update based on data update, scene change and equipment iteration trigger risk point set and the result of risk level dynamic update.The present application can provide the basis for the scene-based and refined risk classification of urban rail transit signal system, support the dynamic correction and iterative optimization of risk level.

This application discloses a method and system for matching electric vehicle charging and discharging stations with the electricity market. The method includes: collecting multi-day charging record data from multiple electric vehicle charging and discharging stations; obtaining the adjustable range for each electric vehicle charging and discharging station based on the multi-day charging record data; classifying each electric vehicle charging and discharging station into those eligible for market access and those not eligible for market access; establishing a calculation model for maximizing the revenue of each eligible station participating in various electricity markets; obtaining revenue datasets for each eligible station participating in various electricity markets based on the calculation model for maximizing the revenue of each eligible station participating in various electricity markets; establishing a station-electricity market matching model for each eligible market; and obtaining matching strategies for each eligible market and the electricity market based on the station-electricity market matching model for each eligible station. This application enables effective matching of electric vehicle charging and discharging stations with diversified electricity markets.

The invention discloses a heterogeneous SAR image high-precision connection point matching method. The method comprises the following steps: extracting object space connection points as region guidance according to object space SAR image data; determining an initial position and a guide area of an image space connection point based on an object-image conversion relation, searching a local optimal connection point, and extracting a supplementary feature point according to an exponential weighted mean ratio of an image texture structure; constructing SAR image feature descriptors according to a gradient statistical histogram and accurately matching the SAR image feature descriptors with image spaces; further eliminating wrong matching points through a similarity threshold value and a random sample consistency algorithm to obtain high-precision connection points; according to the invention, the problems in the prior art that the different-orbit SAR image connection point matching method has obvious defects in coping with the problems of image isomerism and object image conversion position deviation and is difficult to meet the application requirements of high-precision SAR images are solved.

The present application relates to the technical field of information matching, in particular to a past matching method and system based on multi-feature fusion natural language processing, which comprises the following steps: obtaining past description texts from two users respectively, calculating the scores of the two texts in five dimensions of semantic similarity, role complementary similarity, time entity similarity, place entity similarity and name gender similarity respectively, obtaining the comprehensive matching degree through weighted fusion, and completing matching determination and notification interaction based on the preset matching threshold. Through multi-dimensional feature fusion, especially the innovative role complementary similarity calculation mechanism, the accuracy and robustness of the past matching are greatly improved, without the need for the user to provide the accurate identity information of the other party, and the matching can be completed only through the common past description, which can be widely applied to the friend matching scene of social network platforms.

This invention discloses a visual buffer pick-and-place device and method for microneedles. The device includes a feeding assembly, a pick-and-place assembly, and a feeding assembly. The feeding assembly includes a vibrating plate and a visual screening unit. The vibrating plate disperses the vibration of the microneedles, and the visual screening unit acquires images of the microneedles, filters and identifies individual microneedles, and provides feedback on the position and orientation information of the individual microneedles. The feeding assembly includes a feeding seat and a pressure-adjusting buffer structure. The feeding seat has a feeding groove, and the pressure-adjusting buffer structure provides a buffer positive or negative pressure to the feeding groove. The pick-and-place assembly includes a suction head, a pressure-adjusting pick-and-place structure, and a driving structure. The suction head has several microholes communicating with the pressure-adjusting pick-and-place structure. By generating negative pressure at the microholes, the individual microneedles are picked up. The driving structure drives the suction head to reciprocate between the feeding assembly and the feeding assembly, and delivers the individual microneedles to the feeding groove according to the position and orientation information to complete the feeding operation.