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A non-contact measurement method of cabin capacity

A technology of non-contact measurement and measurement method, applied in the field of non-contact measurement of cabin capacity, can solve the problems of long measurement time, low measurement accuracy, poor working environment, etc., to improve resolution, increase measurement range, and avoid targets. matching difficult effects

Inactive Publication Date: 2019-07-05
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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Problems solved by technology

[0007] Aiming at the problem of non-contact measurement of the cabin capacity, the present invention provides a non-contact measurement method of the cabin capacity based on a linear array CCD camera and a line structured light projector, so as to solve the problem of long measurement time and low measurement accuracy in the existing measurement method. High, poor working environment and other issues

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  • A non-contact measurement method of cabin capacity
  • A non-contact measurement method of cabin capacity
  • A non-contact measurement method of cabin capacity

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Embodiment Construction

[0039] The specific implementation process of the present invention is described in detail below in conjunction with accompanying drawing of description:

[0040] A rapid measurement platform for cabin capacity such as figure 1 Shown: the linear array CCD camera 9 is installed on the pan-tilt 1 with two degrees of freedom, and the linear structured light projector 3 is installed on the pan-tilt 2 with one degree of freedom. The two gimbals are separated by a certain distance according to the actual situation of the measured object, and the distance between them is the so-called baseline distance. The baseline distance should be designed according to the actual situation of the measured object, and the size of the distance has a certain impact on the measurement accuracy.

[0041] The method of the measurement system uses the principle of optical triangulation, the optical center of the line array CCD camera 9, the optical center of the line structured light projector 3 and th...

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Abstract

The invention provides a non-contact measurement method and system for cabin capacity. According to the method, a linear array CCD camera and line-structure light are adopted for scanning a measured object cooperatively, then a scanned image is processed, and feature points of the image are extracted. A calculating method of deducing the feature points based on the optics triangle principle is used for calculating three-dimensional coordinates of the feature points and carrying out three-dimensional modeling, and then information about the cabin capacitance and the like is analyzed and calculated. According to the measurement method and system, the cabin capacitance can be measured fast and accurately in a non-contact mode, the measurement efficiency is improved, the working environment of workers is improved, and the problem that target matching is difficult in a binocular vision measurement method is avoided.

Description

technical field [0001] The invention relates to a non-contact measurement method of the cabin volume, specifically a fast and accurate non-contact measurement method for the cabin volume based on a linear array CCD camera and a line structured light projector. Background technique [0002] Capacity refers to the number of unit objects that an object or space can accommodate. The measurement of the cabin capacity is to determine the capacity of the cabin through certain methods and measuring devices, that is, the number of objects that the cabin can accommodate. [0003] For the international / domestic trade of bulk liquid cargo transported by ships, the determination of the quantity of liquid cargo is a major event related to the interests of all parties. For military ships, accurate fuel oil, fresh water storage information and the ballast ups and downs that affect the ship are important information to determine the seaworthiness of the ship. Therefore, from every point of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F17/00
Inventor 朱炜张跃华胡敏捷欧健张强漆光林田丽辛倩倩
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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