10results about How to "Reduce positioning accuracy" patented technology

This invention relates to the field of pile foundation testing, and more particularly to a pile foundation testing device and method for civil engineering construction. The device includes a tamping apparatus for testing the pile body and testing components. In this invention, when the pile body tilts, the light spot undergoes vertical and / or lateral displacement on the receiving plane. If the tilt causes the light spot to move upward or downward, it may partially or completely enter the light aperture range of adjacent adjustment apertures. For example, when the top of the pile tilts to the right, due to the clockwise rotation of the transmitting end, the projection point of the 45° beam moves upward on the receiving end plane. The light spot originally illuminating the middle adjustment aperture may simultaneously cover the edge of the light aperture of one or two upper adjustment apertures. If the tilt angle is large, the center of the light spot may completely move out of the original aperture and into the adjacent aperture area, or even cross multiple apertures. Therefore, the tilt amount of the pile body can be determined by monitoring the number of infrared receivers that have sensed infrared radiation.

Paper currencies are appropriately transported. A banknote transport diverting mechanism 1 includes: a switching gate 10 that is rotatable about a shaft 22 to predetermined multiple positions for switching transport paths 34 by connecting a set of transport passages among transport passages 30 to 32; a switching actuator 40 that rotates the switching gate 10; a contact portion that comes into contact with the switching gate to restrict a rotation range of the switching gate; a sensor that detects the switching gate in a switching position where a direction in which the switching gate rotates is switched; a control portion that controls the switching actuator and records a detection signal output from the sensor, an action amount in an abutment direction for moving the switching gate toward the contact portion, and an action amount in a search direction for returning to the switching position from a stop position of the switching gate that has moved by the action amount in the abutment direction. The control portion calculates, on the basis of the action amount in the abutment direction and the action amount in the search direction in a state in which the action amount in the abutment direction is greater than the action amount in the search direction, the phase between the contact portion and the switching position.

The application relates to a positioning mechanism and a conveying system, which comprises a mounting base provided with a guide sliding hole penetrating through two ends, a positioning driver arranged on the mounting base, a positioning blocking shaft, the length direction of the positioning blocking shaft is provided with a connecting end and a positioning end respectively, the connecting end is connected with a telescopic shaft of the positioning driver, and the positioning blocking shaft is movably arranged in the guide sliding hole, and a matching block used for being mounted on a conveying trolley, the matching block is provided with a matching hole, and when the positioning driver drives the positioning blocking shaft to extend, the positioning end can be inserted into the matching hole. The strength of the positioning blocking shaft is enhanced, so that the positioning blocking shaft is not prone to bending deformation even if frequently impacted by the conveying trolley, the positioning precision of the positioning mechanism to the conveying trolley is ensured, the conveying trolley cannot accurately convey materials to a specified station, and the normal machining problem is solved.

The large die spotting machine with the rotary workbench comprises a base, a left machine frame, a right machine frame, a sliding table, an upper platform, a lower platform, a movable table, the rotary workbench and the like, the left machine frame and the right machine frame are arranged at the two ends of the base respectively, and the upper end of the left machine frame and the upper end of the right machine frame are connected with a top cover. One end of the upper platform is hinged to one end of the sliding table through a hinge, the lower platform is arranged on the base, the moving table is arranged on the lower platform, a rotating shaft is arranged on the center bottom face of the rotating workbench, and the rotating workbench is rotationally installed on the moving table through the rotating shaft. According to the utility model, the positioning precision is less than 0.05, the maximum rotation capacity of the equipment reaches 40 tons, the maximum static pressure bearing capacity reaches 600 tons, the die assembly of single-color, double-color and three-color dies can be met, the multi-purpose of one machine is realized, and the production efficiency is improved. The problems that an existing mold closing machine cannot achieve mold closing of a single-color mold, a double-color mold and a three-color mold on one device and a traditional mold closing machine can only conduct mold closing on one mold at a time are solved.

The invention provides a multi-source data fused power equipment fault root cause analysis method and system. The method comprises the steps of performing credibility evaluation on multi-source power equipment data; the power equipment comprises sensing monitoring data, operation and maintenance record data and power grid topology data; calculating a fusion weight according to a credibility evaluation result; fusing the power equipment data by using the fusion weight to obtain an equipment fault feature vector; performing correlation calculation on the fault root causes and the key features to obtain a correlation matrix; performing root cause matching degree calculation and screening according to the incidence matrix and the equipment fault feature vector to obtain candidate root causes; constructing a Bayesian network according to the candidate root causes and the corresponding key features, dynamically initializing the conditional probability of the Bayesian network by using real-time data update factors according to an incidence matrix, and adjusting the Bayesian network by using fault reasoning knowledge of a fault knowledge graph; and performing root cause screening on the equipment fault feature vector by adopting a Bayesian network to obtain a power equipment matching fault root cause and a corresponding confidence coefficient. Through the scheme, the accuracy and the disposal efficiency of fault root cause analysis in a complex scene can be improved, and the operation and maintenance cost is reduced.

This disclosure provides an elevator positioning method and an elevator positioning device that can suppress the reduction in positioning accuracy of the landing sills of each floor. In the elevator positioning method, in the target floor setting step (S5), the floor immediately above the reference floor where the positioned landing sill is located is set as the target floor. In the sill positioning step (S6), the target sill (3b) of the target floor is positioned with reference to the reference sill (3a) of the reference floor. The sill positioning step (S6) includes a light emitter step, a light receiver step, and an adjustment step. In the light emitter step, a light emitter (51) is installed on the reference sill (3a), and in the light receiver step, a light receiver (52) is installed on the target sill (3b). In the adjustment step, after the light emitter step and the light receiver step, the position of the target sill (3b) relative to the reference sill (3a) is adjusted based on the amount of light received by the light receiver (52) that receives the laser emitted from the light emitter (51).

The utility model discloses an energy accumulator, which relates to the technical field of fluid energy storage equipment and comprises an energy accumulator body, a piston, a heavy hammer and an air bag, the energy accumulator body comprises an energy accumulator cylinder body; the lower portion of the energy accumulator cylinder body is provided with an oil inlet connector, an oil discharge connector and an oil supply port, and the upper portion of the energy accumulator cylinder body is provided with an oil recovery port. The piston, the heavy hammer and the air bag are arranged in the energy accumulator cylinder body; the heavy hammer is arranged above the piston; an air bag is arranged in a central groove in the lower part of the piston; the piston lifting device comprises a driving unit and a pulley mechanism; the driving unit is connected with the pulley mechanism, and the pulley mechanism is connected with the piston, so that when the piston, the air bag and the heavy hammer act together, the effect of the heavy hammer energy accumulator which assists in increasing the pressure regulating reaction speed through the air bag is achieved; or when the driving unit, the pulley mechanism, the piston, the heavy hammer and the air bag act together, the effect of the heavy hammer energy accumulator which can adjust the output pressure through the driving unit and can assist in improving the pressure adjusting reaction speed through the air bag is achieved.

The present application relates to a kind of intensity adjustable wide spectrum light source device, including solar tracking system, secondary mirror array system, sample support.Solar tracking system receives and reflects sunlight to secondary mirror array system, secondary mirror array system is reflected to secondary reflection, secondary reflection light is focused to the irradiation experimental sample fixed by sample support on it.This application also relates to a kind of light intensity time-varying adjustment method, including the steps of sun tracking, light intensity adjustment, irradiation experiment.The present application can realize automatic sun tracking, ensure the accurate positioning of the irradiation area of the light spot formed by secondary reflection light, and the positioning accuracy is less than 1mrad.The intensity of secondary reflection light irradiated to sample can be adjusted, the irradiation light spot is uniform, the power consumption is small, the maintenance is simple, the use efficiency is high, the floor area is smaller, and the use requirements in laboratory environment are met.

The application discloses a kind of visual positioning method and system for building robot.The visual positioning method includes: obtaining the positioning image of positioning target, judging whether the target image in positioning image is complete based on pre-constructed identification model, when target image is not complete, it is defined as broken target;Based on the pre-stored complete target, the broken target is corrected and completed to generate a completed image;According to the completed image and the parameters of the robot itself, the position and posture of the robot are calculated;Two-way pose data are obtained based on the inner code and outer code of the completed image respectively, each way of pose data is information scored according to the preset parameters, and the position and posture of the robot are adjusted according to the information score, wherein the completed image includes outer code and inner code arranged in outer code.The technical scheme of the application can effectively improve the visual positioning accuracy of the robot in complex engineering environment and reduce safety accidents.

The application discloses an UWB error compensation positioning method based on Vegas+ algorithm improvement, relates to the technical field of indoor accurate positioning, and mainly comprises the following steps: obtaining a preliminary sample set by preprocessing original collected data, obtaining a complete sample set by using a VEGAS+ algorithm for secondary sampling, constructing a space error function by using a sparse polynomial to obtain an error model, and performing error prediction and compensation on UWB real-time positioning results to obtain a corrected position signal. The UWB error compensation positioning method based on Vegas+ algorithm improvement can reduce delay and positioning error, and improve long-term stability and environmental adaptability of the system.