32results about How to "Reduce the difficulty of correction" patented technology

The invention discloses a gynecological nursing device with a pelvic floor correction function, comprising a trunk board and a lower limb board, wherein a bracket is connected to the bottom of the trunk board and the lower limb board, and the trunk board and the lower limb board can be connected between them. Hip pads are connected to move, armrests are respectively connected to the left and right sides of the trunk board, a headrest is connected to the surface of the trunk board, a protective cover is connected to the surface of the lower limb board, and a lower limb support is elastically connected to the inside of the protective cover. Two traction rope passage grooves are arranged on the surface of the protective cover, a traction rope is connected to the lower limb support, and a pull ring is connected to the bottom of the traction rope. The invention adds a lower limb support that can be controlled by a traction rope, which can assist the user to roll over the body and reduce the difficulty of correction.

The invention discloses a flow compensation method of a proportional control pump. When outlet pressure of the proportional control pump changes, by carrying out pressure compensation on the valve element end of a proportional control valve, compensation acting force generates a tilting tray angle increment value, and a proportional control pump output flow increment value generated by the tilting tray angle increment value compensates for a flow value lost due to the outlet pressure; a flow compensation device comprises an electric proportional control valve and a main pump provided with an oil absorbing opening and a working oil opening, the variable cylinder small end and the variable cylinder large end of the main pump are connected with the electric proportional control valve, and a pressure compensation valve is arranged at the tail end of the electric proportional control valve. By means of compensation, the influence on flow output by the main pump from pressure change is avoided, the load speed can be controlled stably, and accuracy is ensured.

The invention discloses a barcode tilt correction method based on multi-task target detection, comprising: constructing a single-stage target detector, the single-stage target detector includes a sequentially connected feature extraction basic network and a detection head network; Inputting the feature extraction basic network to extract a feature map; inputting the feature map into the detection head network, performing classification and position regression on the feature map, and obtaining a correction result. The present invention firstly classifies the degree of inclination of the barcode, and then performs angle regression, which effectively reduces the difficulty of barcode correction, and forms a multi-task target detection model by merging with a single-stage target detector, thereby improving the efficiency of detection and correction in parallel, and improving the translation efficiency. Code accuracy and speed play a better role in promoting.

The invention discloses a device and a method for correcting a deformed expansion joint, and belongs to the technical field of ship construction. The device comprises a first adjustment plate, a second adjustment plate and more than two adjustment screw rods, wherein the first adjustment plate is used for being fixed to an upper flange disc of the expansion joint to be corrected; the second adjustment plate is used for being fixed to a lower flange disc of the expansion joint to be corrected; the two ends of each adjustment screw rod are connected with the first adjustment plate and the secondadjustment plate separately; the distance between the first adjustment plate and the second adjustment plate can be adjusted by rotating nuts on the adjustment screw rods, and the expansion joint tobe corrected is compressed or stretched, so that the expansion joint to be corrected is corrected. During the correction, a protective cable is embedded into a deformed thread, so that the uniformityof the gap of the thread after the correction can be effectively ensured; and during the correction, the deformed thread is heated, so that the deformation of the expansion joint to be corrected is promoted, and the correction difficulty of the expansion joint to be corrected is lowered. The correction method is high in operability, and is an indispensable emergency handling means.

The invention provides a rectification method for an immersed tube tunnel. The rectification method comprises a step of mounting a jack group in a joint chamber, a step of controlling the jack group to jack up a tube section to be adjusted until completion, a step of backfilling at the two sides of the immersed tube, a step of removing the jacking force of the jack group, and a step of detaching the jack group. Due to the adopted steps, the jack group is mounted in the jointed chamber to perform fine adjustment rectification on the immersed tube in the chamber, and therefore, the rectification difficulty of the immersed tube under water can be reduced, the construction cost can be reduced and the rectification precision can be improved; air can be charged into the jointed chamber so that the total pressure in the joint chamber is basically equal to the sum of water pressure outside the tube section to be adjusted and the frictional force of a foundation bed, and therefore, the tube section to be adjusted is located in a dynamic-static critical state; rectification can be realized by just applying relatively low jacking force to the immersed tube by using the jack group of a relatively small size, and therefore, the size of the jack group is effectively reduced and then the jack group can be matched with the relatively small space of the joint chamber.

The invention belongs to the field of optical imaging, and particularly relates to a rotating type optical tomography system based on a linear array detector. The system comprises a reflector set, a cylindrical mirror and a linear array detector which are sequentially arranged in the front-face direction of the to-be-tested face of a to-be-tested object. The linear array detector is connected with a computer. The invention correspondingly provides a method utilizing the rotating type optical tomography system for imaging. By means of the rotating type optical tomography technology based on the linear array detector, meanwhile, the rotating type optical system is adopted, the single rotating device is arranged, the structure is simple, the rotating eccentric effect and the optical system off-focus effect during conical scanning are overcome, the algorithm correction difficulty during later period algorithm reconstruction is lowered, and the system stability is improved.

The invention discloses a speed-limiting tool for forming cone parts for a plate rolling machine and a method for forming the cone. The speed-limiting tool is processed on one side of the frame body of the plate rolling machine, and the speed-limiting tool is provided, including a tool body, a pin Shafts, speed limiting and bearings. During processing, place the plate to be rolled between the upper roller and the lower roller, and keep the side of the small head of the plate to be rolled in contact with the speed-limiting peripheral surface. When the plate rolling machine is started, when the plate to be rolled moves continuously along the speed-limiting axis , the frictional force will be generated between the plate to be coiled and the speed limit, so that the speed of the side of the plate to be coiled contacting the speed limit will be slower than the speed of the plate to be rolled away from the side away from the speed limit, so that the two opposite sides of the plate to be coiled will form a stable The speed difference ensures that the axis of the rolled cone is always centripetal and parallel to the roller axis, so as to achieve the purpose of forming the cone.

The invention relates to a rock mass pile foundation pore-forming preboring construction method, including: five hole sites are arranged at a drilled pile site, a center hole sit is arranged in the center of the drilled pile site, four surrounding hole sites are evenly distributed outside the center hole site, the distance between the center of each surrounding hole and the margin of the drilled hole site is equal, and an in-the-hole drill with a drill model number of Phi 140mm is used for drilling on the center hole site and the surrounding hole site. Another hole distribution mode includes:three hole sites are arranged at the drilled pile site, the distance between the center of each hole site and the center of the drilled hole pile site is equal and the connection lines of two adjacenthole site and the center form a 120 degrees angle, the distance between the center of the hole site and the margin of the drilled hole pile site is equal, and an in-the-hole drill with the model number of Phi 220mm is used for punching on the hole site. The method of the invention realizes that pore-forming efficiency of a punching drill is high, slant rock correction difficulty is reduced, construction quality is high, construction period is short and construction cost is low when rock bearing capacity at the foundation pile site of a bridge pile is more than 1000kPa or a slant rock is existed.

The invention discloses a manual l jacking pipe control method and control system. Two laser detection pipes are symmetrically arranged in the wall of each cement concrete pipe, a PSD sensor is arranged at the position, on the front end of a jacking pipe, in each laser detection pipe of each cement concrete pipe, a computer connected with the PSD sensors are arranged outside each cement concrete pipe, and laser emitters are arranged at the position, on the outer end of the jacking pipe, in the laser detection pipes of one cement concrete pipe, laser emitted by the laser emitters is irradiatedon the PSD sensors to form light spots, the PSD sensors collect and record information of light spot position changes, and the computer analyzes collected data, the straightness error of the cement concrete pipes can be evaluated. Through manual adjusting of a jack, the jacking direction of the cement concrete pipes can be adjusted; in the manual jacking pipe construction process, the extension deviation of a pipeline underground can be corrected, the jacking direction is effectively controlled, a deviation correcting control system and a jacking device are integrated, safety is improved, thedifficulty of pipeline deviation correcting in the pipeline jacking process can be effectively reduced, and the comprehensive cost is reduced.

The embodiment of the application discloses a lens, a camera and electronic equipment. Wherein, the lens is arranged on the camera head, and the optical distortion of the lens is a negative value, wherein the optical distortion of the lens satisfies a preset curve, and in the preset curve, the absolute value of the optical distortion of the lens and the field of view The angle is positively related. The embodiment of the present application adopts the above-mentioned technical solution to provide a negative distortion lens that satisfies the preset curve, and compensates the 3D distortion formed by shooting in a physical way, which replaces the way of compensation through the correction algorithm in the later stage, and reduces the loss of 3D distortion. The correction is difficult, and at the same time, it breaks the thinking of reducing the optical distortion of the lens in the prior art, and reduces the cost of optical distortion design in the lens production process.

The invention discloses an automatic parallel parking path planning method based on two second-order Bezier curves. The method determines the parking target position by obtaining the target parking space information, and establishes a global coordinate system with it as the origin to construct a parking space. The trajectory segmentation judgment model is used to determine the number of planned trajectory segments, plan the end position range of the first segment of the trajectory, determine the start and end points of each segment of the planned trajectory and the position of the control point, use the second-order Bezier curve for path planning, and monitor at regular intervals And use the method of dynamically adjusting the planned trajectory to adjust the planned trajectory. The present invention reduces the requirements for the initial pose of the vehicle to be parked, and improves the environmental adaptability of the path planning method; the vehicle can be artificially driven into the planned area through simple adjustments to reduce costs, and can be applied to middle and low-end vehicles; The control points of the vehicle trajectory planning are easy to determine, the trajectory generation algorithm is simple, and the path curvature is continuous; the difficulty of correcting the trajectory error is reduced, and the vehicle obstacle avoidance and parking efficiency are improved.