CN103256906B - A kind of precise calculation method for electronic theodolite stumpage timber volume - Google Patents
A kind of precise calculation method for electronic theodolite stumpage timber volume Download PDFInfo
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- CN103256906B CN103256906B CN201310122017.XA CN201310122017A CN103256906B CN 103256906 B CN103256906 B CN 103256906B CN 201310122017 A CN201310122017 A CN 201310122017A CN 103256906 B CN103256906 B CN 103256906B
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Abstract
The invention discloses a kind of precise calculation method for electronic theodolite stumpage timber volume, the present invention is the method on forest inventory investigation, and it belongs to the volume of timber measuring method that a kind of nothing cuts down lossless trunk.It is characterized in that：Diameter at standing tree ground diameter and 1.3 meters is measured first with diameter of a cross-section of a tree trunk 1.3 meters above the ground chi, secondly finally standing volume is calculated using sectional measurement to the horizontal sextant angle and zenith distance of treetop using diameter at electronic theodolite 1.3 meters of trunk of measurement.This method take full advantage of electronic theodolite high precision, it is flexible and inexpensive the characteristics of, reduce the cost of field investigation, improve standing volume field survey operation and interior industry treatment efficiency.It is demonstrated experimentally that this method can substitute felled tree sectional measurement completely.
Description
First, technical field
The present invention is the method on forest inventory investigation, especially with regard to a kind of method that standing volume is precisely calculated.
2nd, technical background
Stem volume is one of important foundation information of forest survey, and these data are determined by conventional method can be to me
Bring that certainty of measurement is not high, restrictive condition is more, the inconvenience such as cumbersome.There are thousands of forest farms in China at present, carries out within every ten years
Forestry resource survey, will so cut down nearly 300,000 trees and carry out revised Volume table every time.It is this to cut down after standing tree and then profit
Although being asked with sectional measurement formula, the method ratio of precision for calculating standing volume is higher, the damage to China's Forest Resources is too big, is not inconsistent
Close the objective that we preserve the ecological environment.
Maturation and popularization with surveying and mapping technology, electronic theodolite are gradually applied to its high accuracy, the advantage of low cost
All trades and professions.Application of the electronic theodolite in assize, not only increases assize speed, precision and efficiency.More importantly not
Forest and climbed tree with cuting down, do not have to forest any infringement just can automatically, obtain factors of enumeration in real time.This method is exactly at this
Produced under the background of sample.
3rd, the content of the invention
The purpose of the present invention be under the principle do not cuted down, do not destroy trees the accurate diameter of a cross-section of a tree trunk 1.3 meters above the ground for obtaining tree trunk, upper diameter,
The factors of enumeration such as any place height and realize observation automation, it is data acquisition and control automatization, data-storing communication automation, single
Strain timber product calculation automation.
BROAD SUMMARY：
1. a kind of need to measure the horizontal sextant angle of trunk and zenith distance and treetop at the diameter of a cross-section of a tree trunk 1.3 meters above the ground, ground diameter, diameter of a cross-section of a tree trunk 1.3 meters above the ground any of the above
The method that zenith distance just can accurately calculate standing volume.
2. the acquisition of any place trunk diameter and the height of tree.
3. the height of tree and volume of timber computation model are set up.
The present invention has advantages below：
(1) precision of related data is substantially increased, because this research employs high accuracy instrument of surveying and mapping --- electronics is passed through
Latitude instrument has the raising of the order of magnitude as metadata acquisition tool, more traditional tree survey method precision, and the data being achieved in that are used as assize
Factor data is originated, and necessarily greatly improves the precision of these data；
(2) operating efficiency of forest inventory investigation is significantly improved, in traditional forest inventory investigation, survey data needs pen
Note, and coordinate calculator to be calculated, tedious process.This has researched and developed supporting assize software, it is possible to achieve the reality of data
When collection, treatment and preserve, substantially increase the automaticity of field work；
(3) noninvasive measurement to trees is realized, conventional method is generally all taken bottom class's normal wood and does analytic tree
Approach, intricate operation, and forest is damaged.It is not right without cuting down forest and climbing tree by electronic theodolite and diameter of a cross-section of a tree trunk 1.3 meters above the ground chi
Forest have it is any infringement just can automatically, obtain factors of enumeration in real time.This is honest for current China to push capable forest can hold
Continuous business policy is particularly important.
4th, illustrate
The present invention is further described with example below in conjunction with the accompanying drawings.
Fig. 1 is operating process schematic diagram of the present invention.Fig. 2 is oblique distance measuring principle schematic diagram of the present invention.Fig. 3 sets for the present invention
Bole integration segment Computing Principle schematic diagram.
5th, specific embodiment
Diameter at standing tree ground diameter and 1.3 meters is measured first with diameter of a cross-section of a tree trunk 1.3 meters above the ground chi, secondly trunk 1.3 is measured using electronic theodolite
Diameter finally calculates standing volume to the horizontal sextant angle and zenith distance of treetop using sectional measurement at rice, comprises the following steps that：
(1) ground diameter d is measured using diameter of a cross-section of a tree trunk 1.3 meters above the ground chi0, diameter d at the height of tree 1.31；
(2) dispose electronic theodolite, from 1.3 meters of the height of tree to treetop, segmentation aims at trunk edge successively in order, obtain
Electronic theodolite telescope sight line aim at standing tree left edge, it is right along when horizontal sextant angle α1, α2..., αi..., αn-1, αnIt is vertical with aiming at
Wood it is right along when zenith distance γ1, γ2..., γi..., γn-1, γn, wherein subscript i is fragment number；
(3) by digital-to-analogue 1. H=L [tan (90 ° of-γn)-tan(90°-γ1)]+1.3 height of tree H is tried to achieve, wherein flat away from L
By digital-to-analogue 2.Try to achieve；By digital-to-analogue 3. hi=L [tan (90 ° of-γi)-tan(90°-γi-1)] (i=2,
3 ..., n) try to achieve trunk any place height of lift；By digital-to-analogue 4.Try to achieve any place
Diameter Di；
(4) by digital-to-analogue 5.
Try to achieve standing volume V.
Claims (1)
1. a kind of precise calculation method for electronic theodolite stumpage timber volume, it is characterized in that：Standing tree ground diameter is measured first with diameter of a cross-section of a tree trunk 1.3 meters above the ground chi
With 1.3 meters at diameter, secondly using electronic theodolite measurement 1.3 meters of trunk at diameter to treetop horizontal sextant angle and zenith distance,
Standing volume finally is calculated using sectional measurement, is comprised the following steps that：
(1) ground diameter d is measured using diameter of a cross-section of a tree trunk 1.3 meters above the ground chi0, diameter d at the height of tree 1.31；
(2) dispose electronic theodolite, from 1.3 meters of the height of tree to treetop, segmentation aims at trunk edge successively in order, obtain electronics
Theodolite telescope sight line aim at standing tree left edge, it is right along when horizontal sextant angle α1, α2..., αi..., αn-1, αnIt is right with standing tree is aimed at
Along when zenith distance γ1, γ2..., γi..., γn-1, γn, wherein subscript i is fragment number；
(3) by digital-to-analogue 1. H=L [tan (90 ° of-γn)-tan(90°-γ1)]+1.3 height of tree H is tried to achieve, wherein flat pass through away from L
Digital-to-analogue is 2.Try to achieve；By digital-to-analogue 3. hi=L [tan (90 ° of-γi)-tan(90°-γi-1)] (i=2,
3 ..., n) try to achieve trunk any place height of lift；By digital-to-analogue 4.Try to achieve any place
Diameter Di；
(4) by digital-to-analogue 5.
Try to achieve standing volume V.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310122017.XA CN103256906B (en) | 2013-04-10 | 2013-04-10 | A kind of precise calculation method for electronic theodolite stumpage timber volume |
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| CN201310122017.XA CN103256906B (en) | 2013-04-10 | 2013-04-10 | A kind of precise calculation method for electronic theodolite stumpage timber volume |
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| CN103256906A CN103256906A (en) | 2013-08-21 |
| CN103256906B true CN103256906B (en) | 2017-05-31 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136106B (en) * | 2015-08-14 | 2017-03-08 | 北京林业大学 | One kind can not the point of arrival forest electricity through the accurate observation procedure of method |
| CN106123816A (en) * | 2016-06-03 | 2016-11-16 | 北京林业大学 | A kind of standing volume unrelated with seeds automatic accurate measurement method |
| CN110455264A (en) * | 2018-05-07 | 2019-11-15 | 北京林业大学 | A kind of photogrammetric method for establishing tree species Volume table of smart phone |
| CN113310534A (en) * | 2021-07-02 | 2021-08-27 | 唐源盛 | Automatic forest resource checking and reporting system and method |
| CN116677211A (en) * | 2023-06-06 | 2023-09-01 | 中国十七冶集团有限公司 | Construction method for accurately paying off building facades |
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| CN1603742A (en) * | 2004-11-10 | 2005-04-06 | 北京林业大学 | Electronic theodolite measurement system and tree survey method therefor |
| CN101298979A (en) * | 2008-07-01 | 2008-11-05 | 北京林业大学 | Estimate survey technique using metric camera cooperating with theodolite |
| GB2463520A (en) * | 2008-09-17 | 2010-03-24 | Gordon James Hunt | Tape measure comprising two lasers set at 45 degrees to measure height |
| CN102261903A (en) * | 2011-06-14 | 2011-11-30 | 北京林业大学 | Method for measuring forest based on electronic theodolite and total station |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004170429A (en) * | 2003-12-01 | 2004-06-17 | Asahi Koyo Kk | Method and apparatus for generating three-dimensional information |
| WO2010032495A1 (en) * | 2008-09-16 | 2010-03-25 | 株式会社アドイン研究所 | Tree information measuring method, tree information measuring device, and program |
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| CN1603742A (en) * | 2004-11-10 | 2005-04-06 | 北京林业大学 | Electronic theodolite measurement system and tree survey method therefor |
| CN101298979A (en) * | 2008-07-01 | 2008-11-05 | 北京林业大学 | Estimate survey technique using metric camera cooperating with theodolite |
| GB2463520A (en) * | 2008-09-17 | 2010-03-24 | Gordon James Hunt | Tape measure comprising two lasers set at 45 degrees to measure height |
| CN102261903A (en) * | 2011-06-14 | 2011-11-30 | 北京林业大学 | Method for measuring forest based on electronic theodolite and total station |
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| 天地空立体化森林精准自动计测技术研究;董斌等;《北京林业大学学报》;20080331;第30卷;第173-177页 * |
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