9results about How to "Accurate projection" patented technology

The utility model discloses a spot lamp with an angle adjusting structure capable of being stretched at will, which comprises an outer ring and a lamp tube fixed at the top end of the outer ring, a spot lamp body is arranged in the lamp tube, an inner ring is arranged in the lamp tube, a plurality of round holes are arranged on the outer wall of the inner ring, and marbles are arranged in the round holes. A lamp arm is fixed to the bottom of the inner ring, and the spotlight body is rotatably connected to the bottom end of the lamp arm through a bolt. The inner ring is telescopically arranged in the lamp barrel through the marbles; the inner ring ascends in the lamp barrel, the spotlight body extends into the lamp barrel, the inner ring descends in the lamp barrel, and the spotlight body extends out of the bottom face of the outer ring and can rotate by an angle on the lamp arm with the bolt as the center. The LED spotlight is reasonable in structural arrangement, the spotlight body can be retracted into the lamp tube or extend out of the lamp tube, 360 degrees can be achieved through the inner ring, follow-up overhaul and maintenance are facilitated, the spotlight body can be flush with a ceiling after being retracted, the decoration effect of the whole structure can be improved, it is ensured that light is accurately projected on an exhibit, flexible light control is achieved, and the illumination effect is improved.

A laser-assisted positioning mechanism for spinning belongs to the technical field of mechanical processing. The mechanism aims to solve the problems of low precision and long calibration time in the traditional positioning method of multi-axis numerical control spinning equipment. It includes a sliding table module composed of a sliding table support and a sliding table body. The sliding table body is connected to the sliding table support through a linear guide rail. A servo motor drives the displacement of the sliding table body through a synchronous belt transmission mechanism, which includes a first synchronous wheel, a second synchronous wheel, and a closed-loop synchronous belt. The bottom of the sliding table body is fixed to the synchronous belt. A laser level is rigidly fixed to the side of the sliding table body through four symmetrical mounting holes and a mounting slot, projecting a laser reference line parallel to the axis of the spinning wheel. The bottom of the sliding table support is provided with a double fixed seat, which is rigidly connected to the processing platform through bolts. The mechanism realizes a displacement accuracy of 0.1 millimeters through closed-loop control of the servo motor, allowing the laser reference line to be dynamically adjusted along the axis of the spinning wheel.

This utility model relates to the field of automotive window tinting tools, specifically an auxiliary tool for automotive window tinting with positioning and supplemental lighting functions. It includes an outer moving part and an inner moving part. The outer moving part is located on the outer side of the automotive window glass, and the inner moving part is located on the inner side. The outer and inner moving parts are magnetically attracted to each other across the window glass. A light guide plate is detachably installed on one side of the inner moving part, and a light source is installed inside the inner moving part near the light guide plate. The light from the light source is guided by the light guide plate to illuminate the edge of the window. In this auxiliary tool for automotive window tinting with positioning and supplemental lighting functions, the outer and inner moving parts cooperate with each other through the window glass via magnetic attraction, enabling quick and accurate positioning, cutting, and application of the window tinting film. Compared to traditional positioning methods that rely on experience and simple measuring tools, this structure effectively avoids problems such as film misalignment.

Embodiments of the present disclosure disclose a digital tourism-based synthetic video derivation method, an electronic device and a readable medium. A specific implementation of the method includes: in response to determining that the video detection result represents no abnormality, controlling a video processor to perform cutout processing on user action video stream data, and performing fusion processing on the obtained user cutout video stream data and a preselected virtual background to obtain synthetic video stream data; in response to detecting that the theme rendering video stream data meets a preset target condition, controlling a video derivation device to generate a short chain of the theme rendering video stream data, and performing video derivation of the generated video short chain through a preset application channel to obtain a digital tourism synthetic video. The implementation shortens the time of video synthesis, and improves the processing capability and video quality of the derived synthetic video.

The embodiment of the invention discloses a hyperspectral image processing method and device, electronic equipment and a storage medium. The method comprises the following steps: obtaining crop images of a target crop, wherein the crop images comprise a first color image and a first depth image collected by a color depth camera and a first hyperspectral image collected by a hyperspectral camera; obtaining target joint calibration parameters of the color depth camera and the hyperspectral camera; and performing three-dimensional point cloud reconstruction on the first color image and the first depth image by using the target joint calibration parameter, and determining depth information corresponding to the first hyperspectral image based on first point cloud data obtained by reconstruction, the depth information being used for representing a first distance between the hyperspectral camera and the target crop when the hyperspectral camera collects the first hyperspectral image. According to the scheme, information of the color depth camera and information of the hyperspectral camera can be fused, and the first distance between the hyperspectral camera and the target crop is accurately determined when the hyperspectral camera collects the first hyperspectral image.

This utility model discloses a lighting bracket for underground mining operations, including a bracket assembly, connecting rods, and a base. The bracket assembly is T-shaped and includes a lamp holder, a suspension groove, and a support rod. The lamp holder is located at the upper end of the support rod, and a fixing plate is provided above the lamp holder. Several screw holes are evenly distributed on both sides of the fixing plate for fastening with bolts. A limit groove is provided at the bottom, and a suspension groove is provided on one side of the middle of the bracket. The base is L-shaped and includes a base and a fixing box. The base is T-shaped and includes a horizontal groove and a vertical groove. One end of the horizontal groove is welded to the middle of the vertical groove, and the lower end of the support rod is welded to the top of the vertical groove. The frame of the fixing box is welded to the top of the horizontal groove. The connecting rods are triangularly symmetrically distributed. The right end of the connecting rod is welded to the support rod, and the left end of the connecting rod is welded to the fixing box. A power supply is placed inside the fixing box, the lamp is fixed to the lamp holder, and a video recorder is fixed in the suspension groove.

The application relates to the technical field of aviation equipment maintenance, and particularly discloses an aircraft wing carbon fiber skin ultrasonic automatic scanning system and method, which comprises a movable gantry frame and an industrial mechanical arm. The movable gantry frame comprises a plurality of stands and two bed bodies, the plurality of stands are respectively arranged at the bottom ends of the two bed bodies, the top portions of the two bed bodies are jointly provided with a movable cross beam, the top portion of the movable cross beam is provided with a horizontal sliding table, the top portion of the horizontal sliding table is provided with a vertical sliding saddle, the industrial mechanical arm is arranged at the bottom end of the vertical sliding saddle, the bottom end of the industrial mechanical arm is provided with a scanning probe, a limiting mechanism and a transfer trolley are arranged below the movable cross beam, and a control box is arranged below one of the bed bodies. In the application, the automatic lifting type automatic loading and unloading of the composite material wing component is realized through the automatic control technical means of the detection rack and the movable platform, the manual lifting risk is reduced, the labor intensity of the personnel is greatly reduced, and the risk of occupational diseases is reduced.

The invention relates to the technical field of precise pesticide application of agricultural unmanned aerial vehicles, and discloses a precise pesticide application method and system of a pesticide spraying unmanned aerial vehicle. According to the method, field information is dynamically collected according to a field digital base map and a mobile sensor network, and target plaques are identified through iterative comparison with a pathological knowledge map. And according to the plaque features, carrying out adaptive fine-grained region division by adopting a bionic fractal rule, and generating hierarchical pesticide application units. And for each unit, reasoning the liquid medicine demand and planning the nozzle action in parallel to form an instruction set for driving the variant spray boom. And the unmanned aerial vehicle executes the instruction to adjust the attitude and flow of the spray boom, and performs rolling optimization on subsequent instructions by fusing real-time environment data. According to the method, natural distribution forms of diseases and insect pests are matched through fractal division, precise targeted pesticide application in a three-dimensional space is achieved through the variant spraying rod, and the space accuracy and environmental adaptability of pesticide liquid putting are improved.

The invention discloses a projection control method of a projection system and a related device, and relates to the technical field of projection system calibration, and the method comprises the steps: obtaining factory calibration data of the projection system and a calibration pattern projected by a projection device at a user side of the projection system, and resolving a sensing device-projection device external parameter matrix of the projection system, and obtaining projection control parameters corresponding to the target projection object. According to the method, system calibration is carried out based on the geometric parameters of the projection system, calibration of the projection system can be carried out in different user side scenes, the projection content can be projected to the target projection object more accurately in different user side scenes, and the method is suitable for projection calibration in a non-fixed user side scene.