12results about How to "Avoid imprecision" patented technology

The invention provides a spray head assembly correction method, electronic equipment and a computer storage medium. The nozzle assembly correction method is applied to the 3D printing equipment. The nozzle assembly correction method comprises the following steps: controlling an acquisition assembly to acquire a printing platform printed with a corrected object to obtain an initial grayscale image; establishing a rectangular plane coordinate system based on the initial grayscale image; image processing is carried out on the initial grayscale image to obtain a target grayscale image, and a first line segment in the target grayscale image is parallel to any coordinate axis of the rectangular plane coordinate system; acquiring a pixel characteristic curve matched with the target grayscale image, a first length of the first line segment and a second length of the second line segment; calculating nozzle correction parameters based on the pixel characteristic curve, the first length and the second length; the showerhead assembly is corrected using the showerhead correction parameter. According to the method and the device, the spray head assembly can be accurately corrected, and the problem of unqualified printing quality caused by deviation of the uncorrected spray head assembly during printing of the spray head assembly is avoided.

The invention relates to the technical field of hub wire drawing machines, in particular to an automatic positioning method for machining of a hub wire drawing machine. The method is a positioning method for a turning tool nose and a hub first machining point, an automatic hub positioning system comprises a laser distance measuring sensor, a turning tool, a tool setting gauge and an automatic rotating tool table, the turning tool is installed on the automatic rotating tool table, the automatic rotating tool table can rotate by 360 degrees, and therefore the turning tool is driven to be switched in the directions of four positions, and the hub first machining point is obtained. The laser distance measuring sensor is located at a specific position on the automatic rotating tool table, a hub is arranged on one side of the automatic rotating tool table, the laser distance measuring sensor dynamically scans outer contour data of the hub, the first machining point coordinate A (x1, y1) of the hub is determined, the target position B (x2, y2) of a turning tool nose is calculated in combination with a deviation positioning distance parameter delta p set by the system, and finally the target position B (x0, y2) of the turning tool nose is calculated from the specific position of (x0, y2) to the specific position of (x0, y2). And the operation quantities of moving the target position point B (x2, y2) to the target position point B (x0, y0) are x'and y '.

The application relates to the field of automatic driving of an automobile, and discloses a vehicle lateral control method and device, computer equipment and a storage medium, the method comprising the following steps: acquiring vehicle preset parameters, space prediction parameters and prediction custom parameters, and configuring a state prediction model according to the prediction custom parameters; processing the vehicle preset parameters and the space prediction parameters through the state prediction model to obtain a prediction state quantity; acquiring a path reference sequence, determining a position prediction error according to the path reference sequence and the prediction state quantity; acquiring a custom weighting matrix, and determining a control gain according to the custom weighting matrix and the prediction state quantity; determining a prediction control increment according to the position prediction error and the control gain; acquiring a current control quantity, and determining a target control quantity according to the prediction control increment and the current control quantity. The application can improve the accuracy and stability of vehicle lateral control.

A cavity clamp includes a base. The cavity clamp further comprises a mounting guide seat, a lifting frame, a pressing guide pin and a power lifter. The mounting guide seat is fixed below the base, and the mounting guide seat is used for being detachably fixed on a cavity mounting plate; the lifting frame is mounted on the base, and the height of the lifting frame is adjustable; the pressing guide pin is fixed to the lifting frame and extends from the lifting frame to the base. The power elevator is arranged on the base and is opposite to the pressing guide pin; the power elevator is used for being started to abut against the lower surface of the flange when the installation guide seat is fixed to the cavity installation plate and the installation pressing guide pin is adjusted through the lifting frame until the distance between the power elevator and the pressing guide pin is larger than the thickness of the flange of the cavity when the power elevator does not work. Therefore, the power elevator is matched with the pressing guide pin to clamp the flange of the cavity. Therefore, the device can adapt to cavities with different height specifications; when the multiple cavity clamps clamp the flange of the cavity, the clamping force is consistent.

The invention relates to a cloud design decoration design system and method, and the method comprises the following steps: S1, carrying out basic parameter setting before design, including 1-meter line setting; s2, drawing an original house type; s3, restoring original point locations of the house type according to the field data; s4, hard decoration is conducted, wherein ground engineering, ceiling engineering, wall engineering and water and electricity engineering are included; s5, soft installation is carried out, and corresponding product models are placed according to the design point positions; and S6, generating a quotation list. According to the decoration design system, the whole process work of design, order splitting, order placing and purchasing, supplier distribution and the like is completed according to field measurement data, the decoration design efficiency is high, the personalized design requirements of users can be met, the decoration budget is clear, and the decoration cost of the users is saved.

The invention discloses a grooving test device for processing a conveyor belt, and relates to the technical field of conveyor belt processing, comprising a base frame, the top of the base frame is provided with a supporting plate, the bottom of the supporting plate is connected to the bottom inner side of the base frame through a No. 1 electric push rod, and a column frame is slidably arranged on the front and rear sides of the top of the base frame, and side plates are installed on the left and right sides of the two column frames, and the protruding blocks at the outer ends of the side plates are threadedly connected with a threaded rod, and the threaded rod is installed on the left and right outer sides of the base frame through a motor, and a sliding bar is arranged between the upper ends of the two side plates, and the upper ends of the sliding bars are slidably connected with a sliding bar, and the front end of the sliding bar is sleeved and connected with a sliding plate, and the lower end of the sliding plate is limitedly slidably arranged on the inner side of a No. 1 sliding groove, and the No. 1 sliding groove is opened on the front side of the upper end of the base frame. By arranging the cooperation of the column frame, the sliding plate, the transverse movement component, and the oil regulating component, when clamping the conveyor belt, the pulley is limited to improve the detection accuracy, and the conveyor belt can be applied to the detection of conveyor belts of different specifications.

The invention relates to an urban public space quality intelligent evaluation method and system based on multi-source data, and the method comprises the steps: obtaining a to-be-evaluated urban public region and a current evaluation precision level, which are set on a space evaluation interface by a space quality query main body; obtaining a pre-stored traffic evaluation coefficient and a pre-stored social activity evaluation coefficient according to the urban public area to be evaluated; obtaining a to-be-evaluated area building model corresponding to the to-be-evaluated urban public area and corresponding basic model data, and generating an updated area building model and updated basic model data; extracting road traffic data, road use data and social activity data; and generating an urban space quality evaluation score. According to the invention, on the basis of meeting the requirements of the space quality query main body and meeting the attention dimension of the city space use main body in the city public area to be evaluated, the generation of the city space quality score is realized, and the intelligent and comprehensive intelligent evaluation is realized.

The invention discloses a device for monitoring centering deviation of a ship power device, and belongs to the field of centering deviation monitoring equipment. Comprising a workbench and a vertical fixing frame fixedly installed on the workbench, a transverse fixing rod is transversely and fixedly connected to the surface of the vertical fixing frame, the periphery of the transverse fixing rod is slidably sleeved with a sliding sleeve block, a mounting box is fixedly installed on the front face of the sliding sleeve block, and a laser range finder is fixedly installed in the mounting box; the workbench is connected with a pushing structure and a clamping and fixing component. An alignment assembly is installed on the side edge of the laser range finder. According to the invention, by arranging the alignment assembly, the periphery of the end part of the output shaft of the to-be-measured power device can be always aligned by the laser range finder, so that the inaccuracy caused by manual adjustment is avoided; and during the period, the rotating disc is matched, so that the output shaft of the to-be-detected power device does not generate friction with the Z-shaped plate, on one hand, inaccurate monitoring results caused by heat generated by friction are avoided, and on the other hand, loss caused by friction is avoided.

The utility model discloses a kind of green building construction wastewater recovery equipment, comprising: separation mechanism, including reaction tank, shunt box and lower intercommunication separation screen cylinder, the first rotating shaft is rotatably arranged in the reaction tank, stirring vane is installed on the rotating shaft outside, the inside of separation screen cylinder is rotatably arranged with spiral conveying blade, the spiral conveying blade is fixed on the output end of servo motor.The wastewater of the utility model is discharged into separation screen cylinder after preliminary treatment by reaction tank, large particle impurities are intercepted by screen cylinder, at this time, rotating spiral conveying blade will continuously push the impurities in screen cylinder inner wall and bottom to one end, finally automatically discharged through deslagging pipe, fall into the impurity collection box below, simultaneously, treated clean water passes through screen cylinder and flows into wastewater collection box below, and then without manual intervention, greatly reduce human burden, significantly improve cleaning efficiency, ensure that equipment continues stable operation.

The utility model discloses a bridge deflection deformation detection device, which comprises a measuring meter, a pointer of the measuring meter is used for indirectly measuring the deflection deformation value of a bridge, the bridge deflection deformation detection device further comprises a supporting assembly, the measuring meter is fixed on the supporting assembly, and the supporting assembly is fixed on the ground through a tripod and is leveled; and the top of the auxiliary assembly is fixed on the bottom surface of the bridge, and the bottom of the auxiliary assembly is provided with a measuring position matched with a pointer of the measuring meter. The movable tripod is adopted, the device can be conveniently applied to places with uneven bridge bottoms, and the whole device has the advantages of being convenient to position, easy to operate and clear and reliable in bridge detection data.

The present application relates to the field of oil and gas reservoir exploration technology, and specifically to a method, device, storage medium and electronic device for determining oil and gas reservoir reserves, which solves the problem that the existing technology cannot accurately determine the reserves of oil and gas reservoirs. The method includes: obtaining a three-dimensional geomechanical model and oil and gas reservoir engineering parameters of the target area; analyzing the three-dimensional geomechanical model to obtain local stress anomaly data within a preset range of the fault zone in the target area; the local stress anomaly data can accurately indicate the difference in oil content index of adjacent areas of the oil-bearing fault, and obtain the oil content segmentation results of the fault according to the local stress anomaly data, and finally gradually calculate and superimpose the geological reserves of multiple sections of oil-bearing reservoirs to accurately obtain the oil and gas reservoir reserves in the target area. In the case of uneven cave sizes in the strike-slip fault-controlled fracture-cavity oil and gas reservoir in the target area, the oil and gas reservoir reserves of the oil and gas reservoir can also be accurately calculated.

The utility model discloses tailoring equipment for casual clothes processing, and relates to the technical field of clothes processing, the tailoring equipment comprises a workbench and a cutting assembly, the surface of the workbench is provided with a cleaning mechanism, the cleaning mechanism comprises long groove plates fixedly installed on the left side and the right side of the surface of the workbench, and the front end of the left long groove plate is fixedly connected with a servo motor; a servo motor is arranged on the workbench, the output end of the servo motor is fixedly connected with a lead screw, the circumferential surface of the lead screw is in threaded connection with a first threaded sliding block, one side of the first threaded sliding block is fixedly connected with a fixing plate, and a cleaning brush is arranged on the surface of the side, close to the workbench, of the fixing plate. And a first threaded sliding block drives a fixing plate to slide, a cleaning brush cleans the surface of the workbench, two long groove plates are jacked up through four hydraulic rods, the cleaning brush makes contact with the surface of the clothes, and the surface of the clothes can be cleaned under the action of a servo motor.