7results about How to "Correction accuracy" patented technology

The invention relates to the field of electric digital data processing, in particular to a nitrogen and phosphorus pollution source analysis method based on pollution load integration, which comprises a point source nitrogen and phosphorus pollution load accounting step, a non-point source nitrogen and phosphorus pollution load accounting step, an integrated model parameter calibration step and a nitrogen and phosphorus pollution load calculation step. And calculating the nitrogen and phosphorus pollution load of the industrial wastewater, calculating the nitrogen and phosphorus pollution load of the urban domestic wastewater, and then accounting the nitrogen and phosphorus pollution load of the point source. Calculating the dissolved nitrogen and phosphorus pollution load capacity, then calculating the adsorbed nitrogen and phosphorus pollution load capacity, and then calculating the non-point source nitrogen and phosphorus pollution load. And calculating the comprehensive nitrogen and phosphorus pollution load according to the total amount of the point source nitrogen and phosphorus pollution load and the non-point source nitrogen and phosphorus pollution load. According to the method, the point source and non-point source nitrogen and phosphorus pollution load calculation modes are integrated, and the correction RUSLE soil erosion general equation is combined to calculate the nitrogen and phosphorus pollution loads in various phase states, so that the accuracy and the reliability in nitrogen and phosphorus pollution comprehensive source analysis can be obviously improved.

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 invention discloses a method and application for constructing an aircraft wing damage determination model based on the electrical conductivity characteristics of CFRP materials. A rectangular coordinate system is constructed with the center position of the connection point between the fuselage and the wing as the coordinate origin, the wing span direction as the X-axis, the wing heading direction as the Y-axis, and the wing vertical direction as the Z-axis. The electrical conductivity in the X, Y and Z directions is derived based on the anisotropy of the CFRP material on the cross section, and the influence of influencing factors such as force and temperature on the electrical conductivity of the CFRP component in the aircraft wing is considered, so as to respectively construct the damage influencing factors of force and temperature. Thus, a damage determination model of the aircraft during operation is obtained; and the structural health monitoring of the CFRP component in the aircraft wing is performed using the damage determination model.

The invention relates to the technical field of fixing devices, and particularly discloses a glass slide rotating, aligning and fixing device of an optical pathological section scanner, which comprises a scanner, the scanner comprises a base and a lens arm fixedly mounted at the top of the base, and a lens barrel and an objective table which are distributed up and down are fixedly mounted on the front side of the lens arm. According to the application, the travel that the moving frame continues to move downwards after the mounting frame abuts against the rotating disc is utilized, the extrusion control assembly controls the four L-shaped clamping plates to approach synchronously, four-point constraint is formed on the glass slide, and when the L-shaped clamping plates gradually approach and make contact with the glass slide, the vertical guide alignment unit is arranged on the outer side of the lens barrel. According to the technical scheme, uniform pressure from four directions is applied to the glass slide, and the uniform pressure forces the glass slide to generate tiny displacement in the horizontal direction until the glass slide is centered, so that rotary alignment, accurate centering deviation correction, clamping and fixing of the glass slide are realized, and the glass slide can be positioned right below an objective lens for scanning.

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.

The invention discloses an intelligent correction cleaning robot device with a gyroscope matched with a stepping motor, and the device comprises the gyroscope which is installed on a middle support and is used for monitoring the relative horizontal position of an upper transmission part and a lower transmission part in real time; the stepping motor is mounted on the upper and lower transmission brackets, is connected in series with the walking wheels through a transmission shaft and is used for driving the cleaning robot to advance; the control panel receives an offset signal of the gyroscope, performs offset training based on an LSTM neural network model, and generates a stride frequency adjustment instruction; the helical gear pair is installed on the transmission shaft, and the motion direction of the stepping motor is changed to adapt to different path requirements. The walking wheels and the depended wheels provide advancing power and assist in deviation correction. The device can effectively cope with deviation caused by topographic relief and inclination in the cleaning process, the stability of a cleaning path and the cleaning efficiency are remarkably improved, and the device has the advantages of being compact in structure and convenient and fast to install and is suitable for intelligent cleaning application to various complex terrains.