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Method for nondestructively measuring three-dimensional space distribution of decay body in trunk

A three-dimensional, decaying technology, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, etc., can solve the problems of low resolution, heavy and unsuitable super stress wave equipment for field operations, etc., to improve the use efficiency, reduce the loss of life and property, Efficient effect

Inactive Publication Date: 2015-04-01
南京市测绘勘察研究院股份有限公司
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Problems solved by technology

In comparison, the superstress wave equipment is bulky and not suitable for field work, and the measurement resolution of the resistivity method is low

Method used

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  • Method for nondestructively measuring three-dimensional space distribution of decay body in trunk
  • Method for nondestructively measuring three-dimensional space distribution of decay body in trunk
  • Method for nondestructively measuring three-dimensional space distribution of decay body in trunk

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Embodiment Construction

[0036] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0037] according to figure 1 Described method flow, take "Nanjing street tree trunk decay measurement" as example, the present invention is further clarified:

[0038] The first step, according to the site conditions, determine to measure two sections, one is located 50 cm from the ground, and the other is 120 cm from the ground;

[0039] In the second step, the diameter of the tree is 68 cm, and it is determined as 8 measuring points. Taking the section at 120 cm as an...

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Abstract

The invention discloses a method for nondestructively measuring three-dimensional space distribution of a decay body in a trunk. According to the field condition, the number of measuring points is determined, metal probes on the measuring points are knocked, stress waves are formed by knocking pressure in a fluctuating mode and spread around, according to the transmission speed of the stress waves among the measuring points, the decay distribution of the corresponding section is calculated, a three-dimensional linear interpolation method is adopted, trunk decay body three-dimensional distribution data are generated, scientific data fundaments and bases are provided for tree health checks and improvement in wood use efficiency, wood use efficiency is improved, and life and property losses caused by dangerous trees in urban regions are reduced.

Description

technical field [0001] The invention relates to a method for non-destructively measuring the three-dimensional spatial distribution of decaying bodies inside a tree trunk, which belongs to the technical field of surveying and mapping science or measurement data processing technology, and is especially suitable for detecting hollows in large arbor trunks. Background technique [0002] Standing tree decay is one of the key factors leading to the reduction of timber output, quality and effective utilization rate, resulting in a huge loss of timber resources; the sudden dumping of trees on both sides of urban roads and landscaping due to internal decay poses a threat to people's lives and causes property loss. Therefore, it is of great significance to study the more accurate and simple internal decay detection technology of living trees, which is not only beneficial to the effective protection of forest resources, but also has great significance in reducing the loss of life and ...

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Application Information

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IPC IPC(8): G01N29/07
Inventor 韩文泉储征伟李勇肖玉华施一军
Owner 南京市测绘勘察研究院股份有限公司
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