Abstract: A cross-platform standardized maintenance method for a power plant, including: construct the historical maintenance behavior of the corresponding power plant, set maintenance tags, carry out the behavioral consistency analysis on the tag setting results, then determine a plurality of first maintenance representations in the comprehensive maintenance set of consistent sub-behaviors, and extract high probability common representations from all the first maintenance representations corresponding to the same comprehensive maintenance set to construct standardized representations for the same consistent sub-behaviors; determine independent maintenance representations for inconsistent sub-behaviors based on the corresponding power generation platform, and construct the corresponding standardized representation based on the platform switching relationship; when maintenance is required, the maintenance switching mapping table with storage results consistent with that of the power plant to be maintained is automatical

Abstract: A multi-dimensional precision spot inspection method and system for thermal power equipment, and the method includes: determine the equipment requiring precision spot inspection and the initial test period of the equipment to be inspected; acquire the historical precision spot inspection information of the equipment to be inspected, adjust the initial test period of the equipment to be inspected according to the historical precision spot inspection information, and obtain the first test period; perform the precise spot inspection on the equipment to be inspected according to the first test period, obtain the precision spot inspection result within the first test period, and adjust the first test period to obtain the second test period when the precision spot inspection result is more than or equal to the standard value. In the invention, the test period of the thermal power equipment is adjusted, effectively improving the effectiveness and accuracy of the test period.

Abstract: A registration method and an electronic device for visual navigation in dental implant surgery, comprising obtaining a three-dimensional model of a target tooth to be registered, an entity model of the target tooth and a second model of the target tooth, obtaining a position and attitude matrix of the three-dimensional model in a virtual coordinate system according to the coordinates of at least three points on a three-dimensional model of a substrate after the registration of the three-dimensional model in the virtual coordinate system, mounting the entity model of the target tooth onto a registration standard board, obtaining a position and attitude matrix of the entity model in the visual coordinate system according to three optical marks and the points on the entity model corresponding to the three points, and obtaining a correspondence between the virtual coordinate system and the visual coordinate system according to two position and attitude matrices.

Abstract: Disclosed is a denture tray for visual marking and a manufacturing method thereof. The method comprises: establishing a three-dimensional model of a target dentition of a target patient; obtaining a three-dimensional model of a substrate of a denture tray based on the three-dimensional model of the target dentition; providing a through hole at a preset position on the three-dimensional model of the substrate of the denture tray; establishing a three-dimensional model of a fixed connection portion on an outer side surface of the three-dimensional model of the substrate of the denture tray to form a three-dimensional model of the denture tray, wherein the three-dimensional model of the fixed connection portion is integrally connected with the three-dimensional model of the substrate of the denture tray; and manufacturing the denture tray based on the three-dimensional model of the denture tray.

Abstract: A registration method and an electronic device for visual navigation in dental implant surgery, comprising obtaining a three-dimensional model of a target tooth to be registered, an entity model of the target tooth and a second model of the target tooth, obtaining a position and attitude matrix of the three-dimensional model in a virtual coordinate system according to the coordinates of at least three points on a three-dimensional model of a substrate after the registration of the three-dimensional model in the virtual coordinate system, mounting the entity model of the target tooth onto a registration standard board, obtaining a position and attitude matrix of the entity model in the visual coordinate system according to three optical marks and the points on the entity model corresponding to the three points, and obtaining a correspondence between the virtual coordinate system and the visual coordinate system according to two position and attitude matrices.

Abstract: Disclosed is a denture tray for visual marking and a manufacturing method thereof. The method comprises: establishing a three-dimensional model of a target dentition of a target patient; obtaining a three-dimensional model of a substrate of a denture tray based on the three-dimensional model of the target dentition; providing a through hole at a preset position on the three-dimensional model of the substrate of the denture tray; establishing a three-dimensional model of a fixed connection portion on an outer side surface of the three-dimensional model of the substrate of the denture tray to form a three-dimensional model of the denture tray, wherein the three-dimensional model of the fixed connection portion is integrally connected with the three-dimensional model of the substrate of the denture tray; and manufacturing the denture tray based on the three-dimensional model of the denture tray.