8results about How to "Reduced measurement workload" patented technology

The invention discloses an indoor positioning method for constructing a fingerprint map based on multi-chain interpolation, and belongs to the technical field of wireless device positioning method research. The method comprises the following steps: sampling a sample target according to a sampling rule, and sampling to obtain a sampling point data set, wherein the sampling point data set comprises position coordinate information of the sampling point and an RSS value of the sampling point; inputting the sampling point data set into the system for constructing a fingerprint map based on multi-chain interpolation; the system for constructing a fingerprint map based on multi-chain interpolation performs internal processing to obtain a complete fingerprint map, wherein the complete fingerprint map comprises a sampling point data set and a data set of points to be inserted, wherein the data set of points to be inserted comprises position coordinate information of the points to be inserted and an RSS value of the points to be inserted; and obtaining the position coordinate information of the points to be detected through the complete fingerprint map and the RSS value of the points to be detected. Compared with a traditional indoor positioning method, the method of the invention improves positioning accuracy and stability.

The invention relates to a mask construction method applied to the field of panel production, which belongs to the technical field of display panel production and comprises the following steps: compensating a design layout into an old mask layout by using an experience compensation script; searching a position with inaccurate compensation in the old mask layout by using a model to obtain a difference between a simulation contour and a target boundary; carrying out data verification on the found position collection; if the simulation data are not consistent with the actual production data, optimizing the model by using the actual production data until the simulation data of all the positions which are not compensated in place are completely consistent with the actual production data; correcting the design layout by utilizing the optimized model and a correction tool; updating the compensation value of the inaccurate compensation position according to the correction result; forming a new mask layout; and carrying out manufacturability check on the new mask layout, and if the check is passed, carrying out mask production. According to the scheme, mask compensation quality inspection can be carried out on the panel design layout, the position with poor compensation is found, and the measurement workload is reduced.

A large-size structural plane first-order and second-order fluctuation grading sampling measurement method belongs to the technical field of geotechnical engineering, and comprises the following steps: measuring the length of a structural plane along a shearing direction, determining a frequency demarcation point of first-order and second-order fluctuation components according to an empirical formula, and determining a sampling interval of the first-order fluctuation components, performing sparse measurement on the large-size structural surface; the method comprises the following steps: arranging a plurality of small-size measurement areas on a structural plane, obtaining a two-dimensional contour line or a three-dimensional structural plane morphology, extracting a second-order fluctuation component through frequency domain filtering, calculating a fluctuation angle statistical characteristic, evaluating a measurement error based on a confidence interval, and adaptively determining the measurement number of small-size structural planes; and establishing a random field model of the second-order fluctuating component, generating the second-order fluctuating component with the same size as the large-size structural plane, and superposing the second-order fluctuating component with the actually measured first-order fluctuating component to obtain a structural plane digital model. On the premise of guaranteeing the measurement precision, the number of measurement points and the measurement workload are reduced, and the applicability of large-size structural plane measurement engineering is improved.

This invention relates to the field of template pre-assembly and discloses a template pre-assembly method, comprising the following steps: Step 1: Prepare the site, a 3D model, and several templates and horizontal connectors. Determine the planar position of the templates on the site and set several targets on the site, measuring the target coordinates with a total station; Step 2: Import the target coordinates into 3D software and import the 3D model according to the target coordinate positions; Step 3: Assemble the first-layer template and measure the corner points of the template with a total station for coarse adjustment; Step 4: Measure the target coordinates with a 3D scanner, convert the site coordinates into point cloud coordinates, collect the point cloud data of the template, and establish a point cloud model; Step 5: Compare the 3D model and the point cloud model for 3D deviation and fine-tune the template; Step 6: Connect the horizontal connectors in pairs with bolts, and weld each pair of horizontal connectors between adjacent templates to save on-site measurement time.

The utility model provides a kind of multi-point backrest type velocity tube, comprising: multiple velocity probes, positive pressure connecting pipe and negative pressure connecting pipe, each velocity probe includes: positive pressure measuring pipe and negative pressure measuring pipe fixedly arranged back to back;The positive pressure measuring pipe and negative pressure measuring pipe are hollow pipe;The first end of the positive pressure measuring pipe and negative pressure measuring pipe is inclined plane hole;The positive pressure measuring pipe of each velocity probe is sequentially arranged in head and tail, the negative pressure measuring pipe of each velocity probe is sequentially arranged in head and tail;The tail end of two adjacent positive pressure measuring pipes is communicated via the positive pressure connecting pipe being arranged between the two, the tail end of two adjacent negative pressure measuring pipes is communicated via the negative pressure connecting pipe being arranged between the two.The multi-point backrest type velocity tube provided by the utility model is simple and reliable in structure, and can improve the efficiency of measuring the wind speed of wind powder pipeline.

The invention provides a device for measuring the size of an aluminum alloy casting, which relates to the technical field of casting measurement, and comprises a workbench, a machine base, a gantry driving mechanism, a first laser sensor, and a side positioning assembly; the machine base is symmetrically arranged on the left and right sides of the workbench; the gantry driving mechanism is slidably connected to the machine base, and the gantry driving mechanism drives the first laser sensor to move above the workbench along three-axis directions; a plurality of side positioning assemblies are symmetrically installed at the openings of the left and right machine bases; the side positioning assembly comprises a driving electric cylinder and a positioning rod; the driving electric cylinder drives the positioning rod to pass through the opening to the top of the workbench, and the casting is reliably supported by the positioning rod, so that the casting is constrained to maintain a posture on the workbench that is convenient for size measurement, and at the same time, the scanning process is not interfered by the positioning rod, and the measurement of all dimensions around can be completed by one scan, thereby reducing the measurement workload of workers.

The invention discloses an air conditioner indoor unit rapid installation positioning system and method, and the system comprises a base box, the junction of the bottom surface and the side surface of the base box is used as a first reference point of the lower right corner of an air conditioner indoor unit; the first level gauge is mounted on the base box; the first distance measuring sensor is mounted on the bottom surface and faces the ground; the second distance measuring sensor is installed on the side face, and the second distance measuring sensor is arranged towards the second wall body; the controller is mounted on the base box and is in signal connection with the first distance measuring sensor and the second distance measuring sensor; the display is mounted on the base box and connected to the controller; the orifice positioner comprises a horizontal baffle and a vertical baffle, the lower end of the vertical baffle is connected to one end of the horizontal baffle, the joint of the vertical baffle and the horizontal baffle serves as a second datum point of the outer wall trepanning, and a second level gauge is installed on the orifice positioner. The problem that the measurement workload is large in the traditional installation process of the split wall-mounted air conditioner indoor unit is solved.