Electronic angle gauge tree surveying apparatus and automatic tree survey method

A tree measuring instrument and angle gauge technology, applied in the field of forest resources sampling survey, can solve problems such as troubles and errors, inability to store, transmit and process image information.
CN1570557AInactive Publication Date: 2005-01-26BEIJING FORESTRY UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING FORESTRY UNIVERSITY
Publication Date
2005-01-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention discloses an automatic method of tree measuring and an electronic angle gage device for tree measuring that comprises optical angle gage and digital camera and locates the CCD surface (optical-to-electric transducer) (2) on the focal surface of the optical angle gage. So the image optical signal collected by telescope system and microsystem is transformed into electronic signal and is digitalized. And the signals are imported into database through communication cable, which can realize the information collecting and automatic recording. The said method is the combination of the process of tree measuring by the electronic angle gage and computer techniques. With the aid of the electronic tree-measuring device, it can realize the measuring, judging and total automatic calculation through the angle gage tree-measuring software to accomplish outdoor and indoor work synchronously and increases the working efficiency and lower intensity of labor.
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Description

technical field

[0001] The invention relates to an instrument and a method for sampling investigation of forest resources, in particular to an electronic angle gauge dendrometer and an automatic tree measuring method for sampling surveys of unequal forest resources. Its feature is that it can estimate fairly accurate standing volume or stand volume without measuring the tree height of standing trees or the average height of stands, and it can realize the automation from information collection to information processing in the whole tree measuring process. It can provide decision-making basis for rational management and sustainable development of forest resources. Background technique

[0002] 1 Theory and method

[0003] The theory of measuring trees with angular gauge was first created by Austrian forester Bitterlich W. in 1947. In 1952, American scholar Grosenbaugh, L.R., based on probability theory, further clarified from the perspective of sampling that angular gauge po...

Claims

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