Laser caliper and method for measuring tree diameter by laser caliper

A caliper and laser technology, applied in the field of laser caliper and its measurement of tree diameter, can solve the problems of large size, inaccurate measurement, inconvenient use, etc., and achieve the effects of high measurement accuracy, convenient viewing, and simple and convenient operation

Inactive Publication Date: 2017-05-10
湖南创研工业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There are some problems in the existing tree diameter measurement

Method used

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  • Laser caliper and method for measuring tree diameter by laser caliper
  • Laser caliper and method for measuring tree diameter by laser caliper

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The forest area is a fast-growing forest, the estimated maximum tree diameter is 50cm, the threshold of the laser 7 is set to 60cm, the step angle T of the stepping motor 6 is 1.8, the subdivision multiple x is 1, and the circumference L of the motor shaft is 1.8cm , the pulse number n of rotation is 5000, and the diameter d=n×L÷[(360÷t)×x]=45cm of the tree.

Embodiment 2

[0035] The forest area is a fast-growing forest, the estimated maximum tree diameter is 50cm, the threshold of the laser 7 is set to 60cm, the step angle T of the stepping motor 6 is 0.9, the subdivision multiple x is 2, and the circumference L of the motor shaft is 1.8cm , the pulse number n of rotation is 184000, and the diameter d=n×L÷[(360÷t)×x]=41.4cm of the tree.

Embodiment 3

[0037] The method for measuring the diameter of a tree using a diameter measuring laser caliper comprises the following steps:

[0038] (1) insert the tip 2 of the lower part of the caliper support 1 into the ground near the tree to be measured, adjust the level according to the level 10, and the position of the caliper support 1 is as close as possible to the tree to be measured;

[0039](2) Turn on the power key in the button area 9, set the measurement threshold of laser 7 according to the predicted maximum tree diameter, generally the setting threshold is larger than the maximum tree diameter by 10cm;

[0040] (3) Press the measurement key in the button area 9, and the distance measuring box 5 moves horizontally on the cross rail 4, and completes the tree diameter measurement and displays the data on the display screen 8;

[0041] (4) The staff presses the confirmation key in the button area 9 after confirming that it is correct, and the tree path data is uploaded to the m...

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Abstract

The invention relates to the field of a distance measurement device and particularly relates to a laser caliper and a method for measuring a tree diameter by the laser caliper. According to the method provided by the invention, a movable laser point on the diameter-measuring laser caliper correspondingly irradiates an object; when the laser point moves to an edge of the object, a laser degree exceeds a pre-set threshold value; the thickness of the object is obtained through measuring the movement amount of the laser point on the caliper; and the laser caliper can be applied to the aspects of measuring the thickness of the object, measuring the diameter of a cylinder and the like, and is particularly applied to the aspect of measuring the tree diameter. The laser caliper has the beneficial effects that the device is reasonable in structure, high in reliability, high in measurement precision, and simple and convenient to operate; a single person can operate when the laser caliper is used for measuring the tree diameter, the laser caliper can be used for automatically measuring when a measuring key is pressed, and then a liquid crystal screen is used for displaying in real time and automatically recording; the equipment cost is low so that the laser caliper can be popularized in a large range; the device can also be applied to measurement works of other fields; and when the laser caliper is used for measuring the tree diameter, data is stored into the cloud simultaneously, so that data backup is carried out and people of a far terminal can conveniently check the data.

Description

technical field [0001] The invention relates to the field of distance measuring devices, in particular to a laser caliper and a method for measuring tree diameters thereof. Background technique [0002] In forestry work, it is often necessary to measure tree diameter and other data. Now it mainly relies on the staff to use tools such as rulers to measure. In large-scale measurement, this method is too inefficient. Therefore, it is easy to install and measure, easy to operate and easy to develop. The tree diameter measurement device with high precision has very important significance and research value. [0003] An automatic measuring device for tree diameter growth in the Chinese patent library (CN201110365933.7), which realizes real-time monitoring of the real-time growth and growth status of tree diameter through a wireless network node remote monitoring device; includes a device fixing module and a measuring module; the device is fixed The module fixes the measurement mo...

Claims

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Application Information

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IPC IPC(8): G01B7/12
CPCG01B7/12
Inventor 镇方超
Owner 湖南创研工业技术研究院有限公司
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