1 is shown. It uses the principle of laser ranging to record the three-dimensional coordinate information and reflectivity information of a large number of dense points on the surface of the measured object, and collect the three-dimensional data of various entities and real scenes into the computer completely, and then quickly reconstruct the measured Target 3D model and various map data such as lines, faces, and bodies. The generated point cloud data is the restoration of the actual size of the actual object. Combined with the high-resolution digital camera, the texture color information of the object object can be truly preserved, and the entire scan data is placed in a certain space coordinate in combination with the total station control measurement. Department.

Leica HDS 3D laser scanning pulse laser measurement principle LeicaHDS 3D laser scanner scanning principle This project, the field uses high-precision laser 3D scanner system to scan the point cloud data of the storage station, the industry pre-data in Cyclone software Processing, realizing the matching, modeling and gross error detection of point cloud data of the storage and distribution station. Then use software programming to process the section data of the tank and the pillar, and draw the relevant model of the tank and the pillar, and perform error analysis on the calculated data, and compare the sectional data and various perspectives to carry out the tank and The evaluation of the pillar deformation has formed a set of feasible applications, as shown.

Gas storage tank deformation monitoring data processing flow 2 Scan data processing analysis 2.1 Data preprocessing After the data scanning of each station in the field is completed, the storage format is imp format. The point cloud data is preprocessed by the random software Cyclone. There is a noise point in the data of each station, so the first step is to remove the noise points of each station data. In the internal processing, it is necessary to artificially judge the noise point, and the meter is deleted by the manual selection elimination method. After the noise point is deleted, the data needs to be extracted, and the data of each pillar and tank of each gas storage station is extracted and numbered.

2.2 Sectional section data After the analysis number is made, each pillar and tank body shall be sectioned and sliced. This process is automatically generated by the program. Extracted data Some point cloud data sets with X, Y, and Z coordinates. After reading a single pillar or tank file, the Z-coordinate (point elevation data) can be used to separate the pillar or tank into multiple sections. Then, according to the algorithm of center-center fitting, the coordinates of the center plane of each section are calculated, and the calculation results of each pillar or tank are separately saved into one file and are consistent with the pillar tank number. Read and save the file and cycle through the above steps to increase computational efficiency.

2.3 Tank and pillar deformation observation data analysis 2.3.1 Pillar data analysis The three-dimensional view of the pillar, the top view of the pillar center and the three-dimensional view are realized by programming the fitted pillar slice circle data. By amplifying the deformation value, the amount of deformation of each pillar can be visually seen. The deformation of the No. 1 pillar No. 1 of the No. 1 tank (schematic diagram). From the perspective of the deformation of the pillars, the overall deformation of the No. 1 tank No. 1 tank is small and there is no obvious bending. It can be seen that the change of the pillar in both the abscissa and the ordinate does not exceed 12 mm and 10 mm. And the change is the coordinate of the center of the pillar. It can be seen that the deformation of the pillar at the top of 8.5 m is relatively large.

3 Storage No. 1 tank No. 1 pillar three squints S By comparing the difference between these two coordinates, the overall deformation of the gas tank can be reflected, as shown. From the calculation situation analysis, the center coordinate of the tank body and the center coordinate of the pillar fitting tank are small.

104 3 Storage No. 1 Tank No. 1 pillar center top view pillar center overlooking storage No. 1 tank No. 1 pillar center three chick view Y coordinate unit (mm) 4 units (mm) pillar center three-dimensional view pillar three-dimensional view. 3.2 The difference between the center of the tank and the center of the pillar fitting is as shown in the figure. The center position of the tank is fitted through the discrete point file of the tank, and the coordinate point data of the center projection to the XY plane is obtained, and then passed through 8 single columns. The mean center coordinates of the discrete center points are fitted to the coordinate values ​​of the center point of the eight columns in the XY plane. Table 1 The center coordinates of the tank body and the center coordinates of the pillar fitting tanks Table tank number The tank center average coordinate pillar Fitting the center coordinate difference of the tank body. The storage number is empty and full. 2.3.3 Accuracy evaluation of the tank pillar observation results The fitting accuracy of the layered fitting circle can be expressed by the formula (1), which also reflects the scanning and point cloud stitching. Precision.

Since the design radii of all the pillars of each storage station are equal. Therefore, the design value should be consistent with the mathematical expectation of all our fitting radii, as in equation (2): where k is the total number of steel struts per storage station, m is the number of layers per steel struts, r is steel The average value of the pillar fitting radius is as follows: 3 Conclusion In this paper, the three-dimensional laser scanning technology is used to obtain the three-dimensional coordinate data of the gas cylinder pillar and the tank body, and the automatic elimination noise and the center coordinate calculation of the tank body and the cylinder are programmed. A graphical display of the results data was achieved. The experimental results show that compared with the common production methods, the method of this paper can quickly carry out the deformation monitoring of the gas storage tank, and the accuracy meets the normative standards, providing data support for the safety detection of the gas storage tank.

hydraulic sprayer for sanitary disinfection for high production contractor who are spraying outdoor / exterior painting, industrial protection coating and terrace paint. It is ideal solution for medium to large projects.Honda engine maintains the high performance. It can paint wear-resistant paint painting.

 Hydraulic Airless Sprayers Advantage

1)  Powerful high-performance pump

     The hydraulic piston pump can spray high viscosity materials easily.

2)    Hydraulic drive slow down the piston movement, which reduce the equipment abrasion

3)    High Capacity Cooling System

The premium cooling system allows the pump to run cooler and more efficiently

4)    Honda Engine

Honda engines are reliable, high-performance, and easy to start 

5)     Indoor and Outdoor Use

Gas engine enable the painter to move the equipment anywhere.

Hydraulic Airless Sprayers

Hydraulic Airless Sprayers,Hydraulic Airless Paint Sprayer,Airless Sprayer With Hydraulic Pump,Hydraulic High Pressure Airless Sprayer

Fuzhou HVBAN Mechanical Equipment Co., Ltd. , https://www.hi-sprayer.com