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Portable vegetation coverage measuring instrument

A technology of vegetation coverage and measuring instrument, which is applied in the direction of measuring devices, instruments, and optical devices, can solve the problems of not being able to guarantee the level of camera shooting status, and achieve the effect of extracting vegetation coverage, scientific conception, and simple structure

Inactive Publication Date: 2009-05-27
BEIJING NORMAL UNIVERSITY
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a portable vegetation coverage measuring instrument, which overcomes the deficiency that the existing instruments cannot guarantee the level of the camera shooting state, realizes better levelness of the camera when taking pictures, and improves the stability of the camera level in field measurements , so that the instrument is easier to operate, more portable, and more universal. It can adapt to various field environments and extract vegetation coverage

Method used

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  • Portable vegetation coverage measuring instrument
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Embodiment Construction

[0028] See figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a portable vegetation coverage measuring instrument is composed of a support pole 1, a main pole 2, a camera platform 3 and a digital camera 4. ( figure 1 )

[0029] The support rod 1 ( figure 2 ) is a section of steel pipe on the top, and two spiked forks below, which are used to fix the instrument on the ground, and the two spikes below are easy to insert into the ground to keep the stability of the field instrument.

[0030] The main pole 2 is also a steel pipe, which is used to raise the camera platform 3 to a certain height. According to the difference of ground features, the main pole 2 can be extended. The main rod 2 and the supporting rod 1 are connected by pin shafts.

[0031] The camera platform 3 ( image 3 ) adopts the principle of the cloud platform, and is composed of a downward semicircular ring 5, a horizontal circular ring 6 and a horizontal square...

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Abstract

The invention relates to a portable plant coverage measuring instrument which includes a support bar, a main bar, a camera platform and a digital camera; wherein the support bar is a fork form member with an upper section of a steel pipe and a lower section of two spines, and is arranged on ground; the main bar is also a steel pipe, is used for lifting the camera platform to a certain height, and is connected with the support bar through a pin; the camera platform includes a downward semicircular ring, a horizontal circular ring and a horizontal square frame; and one end of the main bar is controlled by a surveyor, the other end is connected with the camera platform, and the camera platform can fast help the camera to recover horizon through the force of gravity. The camera platform is a key member of the present invention, is designed based on principle of holder, and can make the digital camera, which is shook arbitrarily, fixed on the square frame recover horizontal state once the digital camera is in horizontal state. The measuring instrument has advantages of scientific conception, simple structure and easy manufacture.

Description

(1) Technical field [0001] The invention is a portable vegetation coverage measuring instrument in geographical research, which is used to measure vegetation coverage in the field and belongs to the technical field of physical geographic systems. (2) Background technology [0002] Vegetation coverage is often used as a basic parameter or factor in the research of ecology, water conservation, soil, water conservancy, plants and other fields. The existing vegetation coverage measurement methods can be classified into three categories: visual estimation method, instrument measurement calculation method and remote sensing interpretation method. [1] [0003] The methods suitable for small-scale vegetation coverage measurement mainly include (1) visual measurement method: relying on personal experience for field interpretation, but human subjectivity is strong; (2) photographic method: the basic principle is to use a camera to obtain the area to be measured vertical imaging, and...

Claims

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Application Information

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IPC IPC(8): G01B11/28
Inventor 雷星松姚冬萍史海珍杨洁
Owner BEIJING NORMAL UNIVERSITY
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