3results about How to "Correction accuracy" patented technology

The invention discloses a road marking identifying and spraying method and system based on image processing, and the method comprises the steps: collecting a lane line image through a camera, and converting the lane line image into an aerial view; establishing rigid calibration of the pose relation between the nozzle and the camera to realize coordinate registration; converting the aerial view from an RGB space to an HSV space, introducing a self-adaptive threshold adjustment mechanism on this basis, and obtaining a lane marking area image from the lane line image according to self-adaptive segmentation; a lane image is converted from a pixel coordinate space to a parameter space, and automatic detection of lane edge lines and marked lines is realized through Hough transform; in combination with the detected lane marking area, the detection area is classified through a gray threshold value or a brightness feature, and the offset of a marking center line is calculated; the transverse position of the spraying mechanism is adjusted in real time according to the offset of the center line of the marked line, dynamic opening and closing control over the spraying head is achieved in combination with the vehicle running speed and the recognition signal state, and it can be guaranteed that the spraying track and the recognition center line are kept consistent.

The utility model discloses a kind of H-shaped steel group welding straightening integrated machine with pressing device, belong to H-shaped steel group welding straightening integrated machine technical field, comprising: support platform, truss is provided on it;Multiple first support wheel, it is arranged in rectangular array and hinged on the support platform;Multiple second support wheel, it is arranged in rectangular array and hinged on the truss;Welder, it is fixedly installed on the truss;The utility model is through multiple first support wheel and is located the opposite ends of horizontal steel plate on support platform, the movement of horizontal steel plate has guiding support effect, multiple second support wheel and are located the opposite sides of vertical steel plate, the movement of vertical steel plate has guiding support effect, pressing mechanism is under the action of first electric cylinder and initially presses vertical steel plate, and accurate pressing and deviation correction are carried out to vertical steel plate, even if the span of vertical steel plate is big, the limiting of vertical steel plate can be stabilized, to ensure the precision of welding.

This invention belongs to the field of simulator platform technology, and particularly relates to a multi-freedom flight simulation control system for flight-assisted training, comprising a fixed platform, a support platform, a movable platform, and a control system. The fixed platform includes a base, a top cover, and reinforcing members. The movable platform, located between the base and the top cover, is used to simulate flight motion. This movable platform includes a motor, a rotating platform, and a simulation platform. The motor drives the rotating platform to rotate in a planar direction; the lower end of the top cover is provided with multiple pulley supports that slide and engage with an annular groove on the outer circumference of the rotating platform. The rotating platform of the movable platform is equipped with a suspension system. Pitch and roll control of the simulation platform is achieved through the raising and lowering of drive cables and the coordinated raising and lowering of multiple cables. Simultaneously, the attitude of the simulation platform and the extension and retraction of the cables can be fed back through the cooperation of a first sensor and a second sensor, allowing for precise correction and adjustment.