High-speed and high-precision tank volume measurement method and device based on three-dimensional laser scanning

A three-dimensional laser and volume measurement technology, applied in measurement devices, optical devices, instruments, etc., can solve the problems of limited measurement points and low measurement result accuracy, and achieve short measurement time, high accuracy, and convenient data calculation. Effect

Inactive Publication Date: 2014-12-03
南京金创有色金属科技发展有限公司 +1
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  • Application Information

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Problems solved by technology

The average radius of the spherical tank is calculated according to the radius of each measuring station, and then the volume table of the spherical tank is compiled. However, due to the limited measurement points, the accuracy of the measurement results is low when the geometric model is irregular or the deformation is large.

Method used

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  • High-speed and high-precision tank volume measurement method and device based on three-dimensional laser scanning
  • High-speed and high-precision tank volume measurement method and device based on three-dimensional laser scanning
  • High-speed and high-precision tank volume measurement method and device based on three-dimensional laser scanning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: A tank volume measurement device based on three-dimensional laser scanning

[0038] A tank volume measuring device based on three-dimensional laser scanning, characterized in that the measuring device is composed of a three-dimensional laser scanning platform; wherein the three-dimensional laser scanning platform is composed of a three-dimensional laser scanner 1, a tripod 2, a computer 3 and a stitching target 4, The three-dimensional laser scanner 1 is erected on a tripod 2 and connected to a computer 3 through wires.

[0039] The tank volume measurement device based on three-dimensional laser scanning is characterized in that the three-dimensional laser scanner 1 is composed of a laser transmitter, a prism, a receiver synchronized with the prism, a host and a base.

[0040] The tank volume measuring device based on three-dimensional laser scanning is characterized in that the splicing targets 4 are arranged around the tank body 5, 3-6 splicing targets 4 fo...

Embodiment 2

[0044] Embodiment 2: Method for measuring with a fast and high-precision tank volume measuring device based on three-dimensional laser scanning

[0045] The method for measuring with a fast and high-precision tank volume measuring device based on three-dimensional laser scanning is characterized in that the measuring steps are as follows:

[0046] a. According to the shape characteristics of the tank, the spatial position and the accuracy required for scanning, etc., formulate corresponding experimental plans, in which the experimental plan includes determining the model of the scanner, determining the location of the station, scanning distance, scanning angle, scanning distance, and control data Acquisition quality in order to obtain efficient point cloud data in the shortest time, where tanks include tank trucks, storage tanks, and tank containers;

[0047] There are many reasons that affect the accuracy of 3D laser scanning. Among them, the scanning distance is the key fact...

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Abstract

The invention discloses a high-speed and high-precision tank volume measurement method and device based on three-dimensional laser scanning. The method comprises the steps of making an experimental scheme and controlling the data collection quality; collecting and acquiring three-dimensional point cloud data of the outer surface of a tank through a three-dimensional laser scanning platform; carrying out spatial three-dimensional modeling and establishing a three-dimensional model of the tank through the acquired three-dimensional point cloud data of the outer surface of the tank; analyzing the three-dimensional model of the tank and calculating the volume of the tank through the section method. According to the method, the volume of tanks such as tank trucks, storage tanks and tank containers can be quickly and accurately measured, operation is simple, the safety is high, the labor intensity is low, the data processing time is greatly shortened, influence of materials of the tanks and the like is reduced, and data calculation is convenient. The method can adapt to different work environments and is particularly suitable for the quality supervision department to calibrate and retest the volume of the tanks quickly.

Description

technical field [0001] The invention relates to a fast and high-precision tank volume measurement method and device based on three-dimensional laser scanning, belonging to the technical field of tank volume measurement. Background technique [0002] The tank body is the main transportation and storage tool for liquid, liquefied gas and other products in the petrochemical industry, and it is also a measuring tool for trade settlement. According to JJF1009-2006 "Terms and Definitions of Volume Measurement", volume meters include liquefied petroleum gas tank trucks, tank trucks, tanks and barrels, vertical metal tanks, horizontal metal tanks, spherical metal tanks, etc. Among them, automobile tank trucks and oil tank trucks are measuring instruments that are subject to national compulsory verification. The volume verification results are not only the basis for the national transportation authority to formulate safe loading volumes, but also can be used for oil product transfer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G01B11/00
Inventor 何丽梁斌夏志敏梁鹏于永亮
Owner 南京金创有色金属科技发展有限公司
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