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Portable measuring instrument and measuring method capable of simultaneously measuring vegetation coverage and height

A technology of vegetation coverage and measuring instrument, applied in the direction of measuring devices, instruments, etc., can solve the problems of poor portability, poor operability, limited accuracy, etc., to solve the tediousness, improve portability, and maintain stability. Effect

Active Publication Date: 2016-04-27
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

The main problems of the existing photographic methods are: ①Multiple people are required to operate; ②The portability is not strong; ③The ability to obtain vegetation coverage in real time is weak; ④The wired transmission mode is cumbersome; ⑤The operability is not strong
[0004] Vegetation height measurement methods usually use visual inspection, ruler measurement and sensor measurement. Visual inspection is more subjective, ruler measurement is simple but requires manual statistics, and sensor measurement has high requirements for detection objects and limited accuracy.

Method used

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  • Portable measuring instrument and measuring method capable of simultaneously measuring vegetation coverage and height
  • Portable measuring instrument and measuring method capable of simultaneously measuring vegetation coverage and height
  • Portable measuring instrument and measuring method capable of simultaneously measuring vegetation coverage and height

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Embodiment Construction

[0026] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0027] The invention provides a portable measuring instrument that can simultaneously measure vegetation coverage and height, such as figure 1 As shown, it includes a cantilever beam support, an image acquisition and transmission device 7, a binary code disc 6 and a handheld terminal 11 (such as a tablet computer or a smart phone), wherein the image acquisition and transmission device 7 and the binary code disc 6 are fixed on the cantilever beam support On; the binary code disc 6 is perpendicular to the horizontal plane, and is located within the image acquisition range of the image acquisition and transmission device 7; the lower end surface of the binary code disc 6 is in contact with the ground; the image acquisition and transmission device (7) is wirelessly connected to the handheld terminal; The image collection and transmission device is used to coll...

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Abstract

The invention discloses a portable measuring instrument and a measuring method capable of simultaneously measuring vegetation coverage and height. The measuring instrument can simultaneously and real-timely obtain the vegetation height and coverage information, has simple structure and is convenient to carry. The measuring instrument comprises a cantilever beam frame, an image acquisition and transmission device, a binary coding disk and a hand-held terminal, wherein the binary coding disk is vertical to the horizontal plane and is arranged within the image acquisition range of the image acquisition and transmission device, and the lower end face of the binary coding disk is in touch with the ground surface; the image acquisition and transmission device collects images of an area to be measured including the binary coding disk and wirelessly transfers the image information to the hand-held terminal; the hand-held terminal extracts image information from the binary coding disk to calculate the vegetation height, and extracts pixel information from the images in combination with the vegetation height to calculate the coverage.

Description

technical field [0001] The invention relates to the technical field of vegetation information collection, in particular to a portable measuring instrument and a measuring method capable of simultaneously measuring vegetation coverage and height. Background technique [0002] The acquisition of vegetation coverage and height information is an important indicator to effectively reflect the growth of vegetation, and can provide basic information for the succession trend and production potential of vegetation. [0003] The measurement methods of small-scale vegetation coverage usually adopt visual and photographic methods. The visual method is more subjective, while the photographic method uses a camera to take photos of the quadrat, and then uses image processing technology and related algorithms to calculate vegetation coverage information. The law is guaranteed. Therefore, the photographic method has become the preferred method for vegetation coverage measurement. The main ...

Claims

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Application Information

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IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 宋萍翟亚宇
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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