CN111442734A - Non-contact trees chest footpath measuring device based on line laser - Google Patents
Non-contact trees chest footpath measuring device based on line laser Download PDFInfo
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- CN111442734A CN111442734A CN202010436345.7A CN202010436345A CN111442734A CN 111442734 A CN111442734 A CN 111442734A CN 202010436345 A CN202010436345 A CN 202010436345A CN 111442734 A CN111442734 A CN 111442734A
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- 238000000034 method Methods 0.000 claims abstract description 13
- 210000000481 breast Anatomy 0.000 claims description 57
- 230000001960 triggered effect Effects 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 210000000038 chest Anatomy 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000000605 extraction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
A non-contact trees chest diameter measuring device based on line laser includes: the tree-planting system comprises a smart phone, laser emitting equipment and handheld equipment, wherein the laser emitting equipment is arranged on the side surface of the smart phone, the direction of emitted light is the same as the direction of a camera of the smart phone, the laser emitting equipment emits light to a tree to be measured, 2 point lasers and a horizontal laser line are formed on a trunk, a connecting line of the 2 point lasers is perpendicular to the horizontal light, and the horizontal light is perpendicular to the growth extension direction of the tree to be measured; the method comprises the steps of collecting a tree breast-height diameter picture to be measured with 2 laser points and horizontal light, carrying out image processing on the picture, finding out the positions of the 2 laser points in the picture and the width of the horizontal light in the picture out of the tree breast-height diameter, and further obtaining the tree breast-height diameter to be measured. The device in the embodiment of the invention is simple and convenient to carry, and can improve the tree breast-height diameter measurement rate.
Description
Technical Field
The invention relates to the technical field of forestry measurement, in particular to a non-contact tree breast height diameter measuring device based on line laser.
Background
The breast height is an important basis for measuring the price of the nursery stock, and the measurement of the breast height of the tree is extremely important in the breast height inventory of the tree in the nursery.
The existing measurement technologies can be divided into two main categories: contact measurement and non-contact measurement. The contact measurement mainly passes through the breast diameter chi, and around the trunk a week, the person of measuring must be close to the trunk, and measurement efficiency is very low, for many hundreds of thousands of nursery stocks quantity, the measurement of nursery stock breast diameter is difficult to accomplish. In a non-contact measuring device, a measuring system using the principles of triangulation, laser ranging and the like needs a relatively stable platform for measurement; in addition, the measuring device using image acquisition and processing cannot avoid measuring the distance between the image acquisition point and the tree to be measured by using a ranging rod, the measuring speed is relatively slow, and the measuring device cannot be applied to the measuring environment with large nursery stock quantity.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a non-contact tree breast height diameter measuring device based on line laser, which can realize accurate measurement of the tree breast height diameter without a fixed platform, a laser range finder and a ranging rod.
The technical scheme of the invention is as follows: a non-contact trees chest diameter measuring device based on line laser includes: the system comprises a smart phone, laser emission equipment and handheld equipment, wherein the handheld equipment is used for installing the smart phone and the laser emission equipment; the laser emitting device is used for emitting laser, and comprises 2 point lasers and a horizontal light laser, wherein a connecting line of the 2 laser points is perpendicular to the horizontal light, and the direction of the laser is the same as the photographing direction of the smart phone; the smart phone is used for collecting tree breast-height diameter images, the laser emitting device simultaneously emits laser during collection, and the smart phone is also provided with a measurement software program used for carrying out data calculation processing on the collected images and obtaining the breast-height diameter.
Further, the measurement software program comprises an inclination inspection program, a picture acquisition program and an image processing program, the laser emission device emits laser to the tree to be measured, the measurement software program is started through the smart phone, and the following method is executed: the inclination inspection program acquires the current inclination of the smart phone through a gyroscope inside the smart phone, when the inclination is 0, the image acquisition program is triggered, the smart phone acquires the tree breast diameter image to be measured with 2 point lasers and 1 horizontal light, the image acquisition is completed, and the image processing program is triggered to further process the image to acquire the breast diameter.
Preferably, the 2 laser points emitted by the laser emitting device are located in the middle of the trunk of the tree to be measured, and the horizontal light is perpendicular to the growth extension direction of the tree.
The image processing program, when executed, implements the method of: searching the positions of 2 point lasers in the acquired picture through the characteristic points, and calculating the shooting distance of the breast diameter of the tree to be measured according to the actual distances between the positions of the 2 laser points in the picture and the 2 laser points of the laser emitting device; and acquiring the length of the horizontal light and the breast diameter of the tree in the picture through an image processing algorithm, acquiring the actual length of the horizontal light according to the shooting distance, and further acquiring the actual breast diameter length.
The laser emitting apparatus includes: 2 point lasers, 1 horizontal line laser and 1 fixed plate; the 2 point lasers are fixed in distance and emit 2 beams of parallel laser, and the horizontal line laser is arranged in the middle of the 2 point lasers; horizontal line laser that the horizontal line laser instrument launched is perpendicular with 2 point laser lines that 2 point lasers launched, the fixed plate is equipped with 3 equidistant mounting bases and is used for fixing 3 lasers.
The handheld device comprises a grab handle and a support, the support is used for bearing the laser emission device and the smart phone, and a power supply is arranged in the grab handle and used for supplying power to the laser emission device and/or the smart phone.
The effective benefits of the invention are: the non-contact tree breast height diameter measuring device and system can effectively measure the breast height diameter of a tree by means of a laser under the condition of not contacting the tree, and the speed of tree breast height diameter measurement is improved.
Drawings
Fig. 1 is a schematic view of a device for measuring the breast height diameter of a tree according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of a method for measuring the breast height diameter of a tree according to an embodiment of the present invention.
Fig. 3 is a schematic flow chart of image processing in tree breast-height diameter measurement according to an embodiment of the present invention.
Detailed Description
The invention relates to a non-contact tree breast height diameter measuring device based on line laser, which comprises: the system comprises a smart phone, laser emission equipment and handheld equipment, wherein the handheld equipment is used for installing the smart phone and the laser emission equipment; the laser emitting device is used for emitting laser, and comprises 2 point lasers and a horizontal light laser, wherein a connecting line of the 2 laser points is perpendicular to the horizontal light, and the direction of the laser is the same as the photographing direction of the smart phone; the smart phone is used for collecting tree breast-height diameter images, the laser emitting device simultaneously emits laser during collection, and the smart phone is also provided with a measurement software program used for carrying out data calculation processing on the collected images and obtaining the breast-height diameter.
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a device for measuring the diameter at breast height of a tree according to an embodiment of the present invention, and the embodiment of the present invention is described in detail below with reference to fig. 1.
As shown in fig. 1, the apparatus for measuring the breast height diameter of a tree in a non-contact manner provided by this embodiment includes: the system comprises a smart phone 1, laser emitting equipment 2 and handheld equipment 3, wherein the smart phone 1 and the laser emitting equipment 2 are arranged on the handheld equipment 3; the camera of the smart phone 1 faces the same direction as the laser emitting device 2, and the laser emitting device 2 is used for emitting laser to the tree to be measured when the smart phone 1 collects the breast diameter picture of the tree to be measured so as to form 2 laser points and a horizontal light perpendicular to the growth extension direction of the tree in the obtained breast diameter picture of the tree to be measured.
Specifically, the embodiment of the invention provides a device for measuring the tree breast height diameter in a non-contact mode, which comprises a handheld device 3, wherein a groove is formed in the handheld device, the groove is equivalent to a support and used for placing a smart phone device 2, and a laser emitting device is arranged on the left side of the smart phone. Wherein smart mobile phone camera and laser emission equipment transmitting surface are towards same direction to when the smart mobile phone gathered the image, laser emission equipment includes 2 point laser instrument 6 and 1 horizontal line laser instrument 7, connects on handheld device 3 through the fixed plate, and laser emission equipment launches 2 point laser and 1 horizontal light to the trees of awaiting measuring. After the laser emitting device shoots 2 point lasers and 1 horizontal line laser on the tree to be measured, the smart phone collects a tree breast diameter picture to be measured with the 2 point lasers and the horizontal light, the 2 point lasers are used for calculating the actual distance of pixel points, the horizontal light is used as a reference object, and the breast diameter parameter of the tree to be measured is calculated. As shown in fig. 1, the laser emitting device is disposed around the smartphone camera, as long as the smartphone camera and the laser emitting device are not shielded from each other, so as to ensure that the smartphone can collect 2 points of laser and horizontal light formed by the laser emitting device on the tree to be measured, and the specific position of the smartphone is not specifically limited in the embodiment of the present invention.
In addition, the device in the embodiment of the invention further comprises a handle and a power supply, wherein the power supply 5 is arranged in the handle of the handheld device, and the power supply 5 is connected with the laser emitting device. The device is provided with a grab handle which is convenient for a user to hold and collect the breast diameter picture of the tree to be measured, and a power supply 5 is arranged in the grab handle, and the power supply 5 is used for supplying power to the laser emission equipment. As shown in fig. 1, a switch 4 can be further arranged on a handle of the handheld device, when the tree breast diameter needs to be measured, the switch 4 is firstly pressed, the laser emitting device emits 2 point lasers and horizontal light to the tree to be measured, and the smart phone shoots a picture with the 2 point lasers and the horizontal light.
The laser emission device comprises 2 point lasers and 1 horizontal line laser. Because the red laser is relatively distinct with respect to the tree color, 2 red point lasers and 1 red line laser may be used in embodiments of the present invention. Of course, other laser emitting devices, such as 2 blue spot lasers, may also be used according to the needs, and the embodiment of the present invention is not limited in particular.
Specifically, the invention provides a device for measuring the breast diameter of a tree and correspondingly configured measuring software thereof, wherein the software is used for controlling the shooting of a breast diameter picture of the tree to be measured and carrying out image processing on the picture to further obtain the breast diameter.
On the basis of the above embodiment, the specific measurement software includes a picture acquisition module and an image processing module, and is used for executing the acquisition and processing flow of pictures. The image acquisition module is used for acquiring a breast diameter picture of the tree to be measured; the image processing module is used for positioning the positions of the 2 point lasers in the breast diameter picture and the length of the horizontal light, calculating the actual distance corresponding to one pixel point according to the actual distance of the 2 point lasers and the distance of the 2 point lasers in the picture, and further acquiring the breast diameter of the tree to be measured according to the number of the horizontal light pixel points.
In the image processing, the image processing comprises feature point searching and horizontal ray extraction; the characteristic point searching module is used for searching the positions of 2 point lasers in the tree breast-height diameter picture to be measured, and obtaining the shooting distance of the tree breast-height diameter to be measured according to the positions of the 2 laser points and the actual distance of the 2 lasers, wherein the characteristic point searching specifically comprises the following steps: extracting a white part of the collected picture, extracting a part with the same color as the point laser, performing expansion operation on the two parts, and extracting the intersection of the two parts after the expansion operation; and searching a circle in the middle image of the intersection, and acquiring the corresponding positions of the 2 laser points. The horizontal light extraction module is used for obtaining the length of the horizontal light on the trunk of the tree to be measured, and further obtaining the length of the breast height according to the length of the horizontal light on the tree. The horizontal light extraction method comprises the steps of cutting collected images according to 2 laser points found by searching for characteristic points, obtaining an image area where the horizontal light is located, extracting pixel points with the same color as that of a horizontal line laser in the image area where the horizontal light is located, and forming a horizontal line intermediate image; finding the longest line segment in the horizontal line middle image, and further acquiring the breast diameter of the tree to be measured according to the length of the line segment.
The device, the system and the method for measuring the tree breast height diameter provided by the embodiment of the invention have the advantages that the structure is simple, the carrying is convenient, the 2 point lasers and the 1 horizontal line laser are used, the smart phone can quickly and accurately acquire the tree breast height diameter to be measured after acquiring the tree breast height diameter picture to be measured, and the tree breast height diameter measuring efficiency and precision are improved.
On the basis of the foregoing embodiments, an embodiment of the present invention provides a method for measuring a tree breast height diameter, fig. 2 is a schematic flow chart of the method for measuring a tree breast height diameter according to the embodiment of the present invention, and as shown in fig. 2, the method for measuring a tree breast height diameter according to the embodiment of the present invention includes: the laser emission equipment emits 2 point lasers and 1 horizontal light to the tree to be measured; the method comprises the following steps that measuring software in a smart phone conducts gradient calibration, and a tree breast diameter picture to be measured is collected; and the measurement software carries out picture processing on the collected picture, acquires 2 point laser positions and the length of the horizontal light, and acquires the breast diameter of the tree to be measured according to the 2 point laser positions and the length of the horizontal light.
Claims (8)
1. The utility model provides a non-contact trees chest footpath measuring device based on line laser, characterized by includes: the system comprises a smart phone, laser emission equipment and handheld equipment, wherein the handheld equipment is used for installing the smart phone and the laser emission equipment; the laser emitting device is used for emitting laser, and comprises 2 point lasers and a horizontal light laser, wherein a connecting line of the 2 laser points is perpendicular to the horizontal light, and the direction of the laser is the same as the photographing direction of the smart phone; the smart phone is used for collecting tree breast-height diameter images, the laser emitting device simultaneously emits laser during collection, and the smart phone is also provided with a measurement software program used for carrying out data calculation processing on the collected images and obtaining the breast-height diameter.
2. The non-contact tree breast diameter measuring device based on the line laser as claimed in claim 1, wherein the measuring software program comprises an inclination checking program, a picture collecting program and an image processing program, the laser emitting device emits laser to the tree to be measured, the measuring software program is started by a smart phone, and the following method is implemented: the inclination inspection program acquires the current inclination of the smart phone through a gyroscope inside the smart phone, when the inclination is 0, the image acquisition program is triggered, the smart phone acquires the tree breast diameter image to be measured with 2 point lasers and 1 horizontal light, the image acquisition is completed, and the image processing program is triggered to further process the image to acquire the breast diameter.
3. The non-contact tree breast diameter measuring device based on the line laser as claimed in claim 2, wherein 2 laser points emitted by the laser emitting device are located in the middle of the trunk of the tree to be measured, and the horizontal light is perpendicular to the extending direction of the tree.
4. The linear laser-based non-contact tree breast diameter measuring device of claim 2, wherein the image processing program is executed to implement the following method: searching the positions of 2 point lasers in the acquired picture through the characteristic points, and calculating the shooting distance of the breast diameter of the tree to be measured according to the actual distances between the positions of the 2 laser points in the picture and the 2 laser points of the laser emitting device; and acquiring the length of the horizontal light and the breast diameter of the tree in the picture through an image processing algorithm, acquiring the actual length of the horizontal light according to the shooting distance, and further acquiring the actual breast diameter length.
5. The non-contact tree breast diameter measuring device based on the line laser as claimed in any one of claims 1 to 4, wherein the laser emitting device comprises: 2 point lasers, 1 horizontal line laser and 1 fixed plate; the 2 point lasers are fixed in distance and emit 2 beams of parallel laser, and the horizontal line laser is arranged in the middle of the 2 point lasers; horizontal line laser that the horizontal line laser instrument launched is perpendicular with 2 point laser lines that 2 point lasers launched, the fixed plate is equipped with 3 equidistant mounting bases and is used for fixing 3 lasers.
6. The non-contact tree breast diameter measuring device based on the line laser as claimed in any one of claims 1 to 4, wherein the hand-held device comprises a handle and a support, the support is used for carrying the laser emitting device and the smart phone, and a power supply is arranged in the handle and is used for supplying power to the laser emitting device and/or the smart phone.
7. The line laser-based non-contact tree breast diameter measuring device according to claim 6, wherein the power supply is provided with a power switch.
8. The non-contact tree breast height diameter measuring device based on the line laser as claimed in claim 6, wherein the laser emitting device and the smart phone are mounted on the support in a plugging manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010436345.7A CN111442734A (en) | 2020-05-21 | 2020-05-21 | Non-contact trees chest footpath measuring device based on line laser |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010436345.7A CN111442734A (en) | 2020-05-21 | 2020-05-21 | Non-contact trees chest footpath measuring device based on line laser |
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| CN111442734A true CN111442734A (en) | 2020-07-24 |
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| CN202010436345.7A Pending CN111442734A (en) | 2020-05-21 | 2020-05-21 | Non-contact trees chest footpath measuring device based on line laser |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4837717A (en) * | 1986-02-04 | 1989-06-06 | Geotronics Ab | Device for measuring substantially vertical, circular-cylindrical objects |
| US7315794B1 (en) * | 2004-03-23 | 2008-01-01 | Willis Frank L | Timber survey process and apparatus |
| CN102095383A (en) * | 2010-11-24 | 2011-06-15 | 北京林业大学 | Quick tree-walk detection device based on machine vision |
| CN102589455A (en) * | 2012-02-14 | 2012-07-18 | 北京林业大学 | Standing wood diameter detection device based on laser and visual technology |
| CN102980510A (en) * | 2012-08-07 | 2013-03-20 | 孟繁志 | Laser optical ruler image tree measuring device and method thereof |
| CN103196382A (en) * | 2013-04-22 | 2013-07-10 | 北京林业大学 | Standing-tree diameter measuring device based on laser ranging and image technologies |
| CN104048614A (en) * | 2013-12-03 | 2014-09-17 | 南京森林警察学院 | Stumpage diameter measuring method and measuring equipment |
| CN205079766U (en) * | 2015-08-17 | 2016-03-09 | 广西电网有限责任公司电力科学研究院 | Hand -held type overhead transmission line passageway screen of trees information intelligent acquisition terminal |
| CN107084672A (en) * | 2017-05-08 | 2017-08-22 | 北京林业大学 | A kind of image collecting device for tree breast-height diameter, system and method |
| CN109990721A (en) * | 2019-04-10 | 2019-07-09 | 广东工业大学 | A kind of tree diameters automatic measurement system and measurement method based on line-structured light |
| CN110057291A (en) * | 2019-05-26 | 2019-07-26 | 苏州大学 | The tall delivery receiving acceptance method for filling plant specification in landscape engineering |
| CN110411360A (en) * | 2018-04-27 | 2019-11-05 | 北京林业大学 | A kind of smart phone surveys tree device and its tree survey method |
-
2020
- 2020-05-21 CN CN202010436345.7A patent/CN111442734A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4837717A (en) * | 1986-02-04 | 1989-06-06 | Geotronics Ab | Device for measuring substantially vertical, circular-cylindrical objects |
| US7315794B1 (en) * | 2004-03-23 | 2008-01-01 | Willis Frank L | Timber survey process and apparatus |
| CN102095383A (en) * | 2010-11-24 | 2011-06-15 | 北京林业大学 | Quick tree-walk detection device based on machine vision |
| CN102589455A (en) * | 2012-02-14 | 2012-07-18 | 北京林业大学 | Standing wood diameter detection device based on laser and visual technology |
| CN102980510A (en) * | 2012-08-07 | 2013-03-20 | 孟繁志 | Laser optical ruler image tree measuring device and method thereof |
| CN103196382A (en) * | 2013-04-22 | 2013-07-10 | 北京林业大学 | Standing-tree diameter measuring device based on laser ranging and image technologies |
| CN104048614A (en) * | 2013-12-03 | 2014-09-17 | 南京森林警察学院 | Stumpage diameter measuring method and measuring equipment |
| CN205079766U (en) * | 2015-08-17 | 2016-03-09 | 广西电网有限责任公司电力科学研究院 | Hand -held type overhead transmission line passageway screen of trees information intelligent acquisition terminal |
| CN107084672A (en) * | 2017-05-08 | 2017-08-22 | 北京林业大学 | A kind of image collecting device for tree breast-height diameter, system and method |
| CN110411360A (en) * | 2018-04-27 | 2019-11-05 | 北京林业大学 | A kind of smart phone surveys tree device and its tree survey method |
| CN109990721A (en) * | 2019-04-10 | 2019-07-09 | 广东工业大学 | A kind of tree diameters automatic measurement system and measurement method based on line-structured light |
| CN110057291A (en) * | 2019-05-26 | 2019-07-26 | 苏州大学 | The tall delivery receiving acceptance method for filling plant specification in landscape engineering |
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Application publication date: 20200724 |