Train compartment cargo volume and bulk density detection method based on point cloud data processing

A technology of point cloud data and volume density, which is applied in the direction of measuring devices, specific gravity measurement, instruments, etc., can solve the problems of high cost and high price

Active Publication Date: 2018-12-18
河北燕大燕软信息系统有限公司
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AI Technical Summary

Problems solved by technology

In the intelligent production process, based on this technology, the most widely used equipment in the industrial field to obtain the surface shape information of the measured bulk cargo train carriage is the 3D laser scanner, which is easy to operate and has high measurement accuracy, but it is expensive. Higher costs are required for large quantities of applications

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  • Train compartment cargo volume and bulk density detection method based on point cloud data processing
  • Train compartment cargo volume and bulk density detection method based on point cloud data processing
  • Train compartment cargo volume and bulk density detection method based on point cloud data processing

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Embodiment Construction

[0035] Step 1. Use two high-precision two-dimensional laser scanners installed at the centerline of the top centerline of the entrance and exit of the dumper room to obtain the state of the heavy vehicle and the state of the empty vehicle loaded with bulk cargo in the three-dimensional space of the x-axis and z-axis. Two sets of distance probe data on the axes.

[0036] Two high-precision two-dimensional laser scanners are respectively installed at the top centerline of the entrance of the dumper room for heavy vehicles and the exit of empty vehicles on the other side, and use the movement of the measured bulk cargo train carriage along the y-axis direction to scan it in real time , to obtain two sets of distance detection data on the x-axis and z-axis in the three-dimensional space of the heavy vehicle state and the empty state of the measured bulk cargo train carriage.

[0037] Step 2. According to the OPC_Client system, collect the motion state information of the measured b...

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Abstract

The invention discloses a detection method for a cargo volume and a bulk density of a train compartment, comprising the following steps of: obtaining two sets of distance detection data on an x-axis and a z-axis of the train compartment by using a two-dimensional scanner; performing a united computation on motion data of the car along the y-axis direction calculated by an OPC-Client system and thetwo sets of distance detection data to obtain the two sets of three-dimensional point cloud data; performing a down sampling and an irrelevant point removal processing on the obtained three-dimensional point cloud data to obtain two sets of streamlined three-dimensional point cloud data of the train compartment; creating a Delaunay triangulation network for two sets of streamlined three-dimensional point cloud data to obtain the top surface and the bottom surface of the train compartment; transforming a total volume of cargo in the train compartment into an aggregate form by a projection processing; calculating the volume of the transformed aggregate, performing a summation processing to obtain a total volume of the cargo in the train compartment; calculating a bulk density parameter of the cargo carried and judging the stability by using the calculated total volume of the cargo and the weight data provided by a rail weighbridge.

Description

【Technical field】 [0001] The invention relates to the field of reverse engineering, is suitable for automatic detection of port goods, and in particular relates to a method for detecting the cargo volume and body density quality of train carriages based on point cloud data processing. 【Background technique】 [0002] With the rapid development of science and technology, the industrial production process is developing in the direction of automation, intelligence and speed. Ports play a pivotal role in connecting the inland economic hinterland and promoting the development of maritime transportation. The degree of intelligence is directly related to the economic development of the entire region. The key to automated production between ports is the high-precision detection of train carriages loaded with bulk cargo entering and leaving the port. As a high-precision detection method, laser radar detection technology has received extensive attention. The development of this techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01N9/02
CPCG01B11/00G01N9/02G01N2009/022
Inventor 孔德明张娜沈阅陈鹏谷美娜
Owner 河北燕大燕软信息系统有限公司
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