Intelligent annual ring width measuring device and measuring system

Abstract

The utility model discloses an intelligent annual ring width measuring device, and belongs to the technical field of forestry. Comprising a sliding table module; the objective table is arranged on the sliding table module; the microscope assembly is located at the top of the objective table, and the microscope assembly captures a high-definition image of the tree core sample and transmits the high-definition image to the computer for image processing and analysis; and the laser range finder is mounted at one end of the sliding table module and is used for measuring the moving distance of the objective table. The utility model further discloses an intelligent annual ring width measuring system which comprises the intelligent annual ring width measuring device. The high-definition image, captured by the microscope assembly, of the tree core sample is transmitted to the computer, and annual ring information of the image is collected, processed and stored through the data processing module; and the data analysis module is used for realizing analysis and control of the annual ring information. Through the measuring device and the measuring system, the tree ring information can be accurately and quickly obtained, the working intensity and the operation complexity are reduced, and the analysis precision and efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of forestry investigation, and in particular relates to an intelligent annual ring width measuring device and a measuring system. Background Art

[0002] Tree rings are important biological markers that record climate change and tree growth history. Accurate interpretation of their information is of great significance to research in multiple disciplines.

[0003] Tree ring information is basic research data in many fields. How to efficiently and accurately identify and calibrate tree ring lines, measure tree age and measure tree ring width is particularly important in analysis work.

[0004] At present, the mainstream methods for detecting annual rings are scanner method and X-ray method. However, both methods have certain limitations:

[0005] The scanning method can greatly improve the error of human measurement, and its accuracy and resolution are relatively high, but it has the defects of complex instrument structure, slow scanning speed (limited to one-dimensional case), small scanning area, inability to sample large samples for many years at one time, and complex and cumbersome image processing process and low efficiency.

[0006] The working principle of the X-ray method is to reflect the structural information of the object under test according to the change in the intensity of the X-ray when it penetrates the object under test. The material with high density absorbs strongly, and vice versa, the absorption is weak, so the annual ring structure image of the wood core can be constructed. However, the conditions for achieving X-rays are harsh and there is a radiation effect on the object under test. The device structure is complex and expensive, and the edge imaging effect is poor.

[0007] In addition, there are also studies that use image analysis technology to obtain reflected brightness data from tree ring cross-sections to reflect the difference in color between early and late wood in tree rings and clarify tree ring boundaries. This method also faces the problems of low efficiency, complicated operating steps, and high labor intensity. Utility Model Content

[0008] The utility model aims at the above problems existing in the prior art and proposes an intelligent tree ring width measuring device and measuring system which can accurately and quickly obtain tree ring information, reduce work intensity and operation complexity, and improve desorption efficiency.

[0009] The utility model can be realized through the following technical solutions:

[0010] An intelligent annual ring width measuring device, comprising:

[0011] Slide module;

[0012] A stage, which is arranged on the slide module and realizes the movement of its axis through the slide module;

[0013] A microscope assembly is located on the top of the stage. After the tree core sample is placed on the stage, the stage is moved to the bottom of the microscope assembly by the slide module. The microscope assembly captures a high-definition image of the tree core sample and transmits it to a computer for image processing and analysis.

[0014] A laser rangefinder is installed at one end of the slide module and is used to measure the moving distance of the stage.

[0015] As a further improvement of the present invention, the slide module comprises:

[0016] Support frame;

[0017] A lead screw and a linear guide rail, which are arranged on the support frame;

[0018] A motor, which is arranged at the end of the support frame, and the rotating shaft of the motor is connected to the screw rod through a coupling;

[0019] A slide is threadedly connected to the lead screw, and the linear guide rail passes through the slide.

[0020] As a further improvement of the present invention, the loading platform is mounted on the slide, and the motor drives the lead screw to rotate, thereby driving the slide to move and realizing synchronous movement of the loading platform.

[0021] As a further improvement of the utility model, the laser rangefinder is arranged on one side of the end of the support frame, and a laser rangefinder board is provided on the side of the slide, and the laser rangefinder measures the straight-line distance between the laser rangefinder and the laser rangefinder board.

[0022] As a further improvement of the utility model, the microscope assembly is integrated with an industrial camera, and the industrial camera is used to take images of tree core samples.

[0023] As a further improvement of the present invention, the microscope assembly is also integrated with an optical microscope, and the optical microscope is used to magnify the image of the tree core sample.

[0024] An intelligent annual ring width measurement system, comprising:

[0025] The above-mentioned intelligent annual ring width measuring device;

[0026] A data processing module, wherein the high-definition image of the tree core sample captured by the microscope assembly is transmitted to a computer, and the growth ring information of the image is collected, processed and stored by the data processing module;

[0027] The data analysis module is used to implement the analysis and control of tree ring information.

[0028] As a further improvement of the present invention, the data processing module adopts host computer software, and the host computer software is used to realize the functions of position calculation, motor control and image recognition.

[0029] As a further improvement of the present invention, the data analysis module adopts an electron microscopic positioning method, based on the laser rangefinder sensing the linear displacement of the slide to achieve annual ring width measurement.

[0030] As a further improvement of the present invention, the data analysis module is based on the electron microscopy positioning method and combines image recognition and motor control algorithms to assist in interpreting the growth ring lines.

[0031] Compared with the prior art, the utility model has the following beneficial effects:

[0032] 1. Strong practicability: The system can accurately and quickly obtain tree ring information, reducing work intensity and operation complexity;

[0033] 2. Low work fatigue: Through automated control and image recognition technology, manual operations are reduced and work intensity is lowered;

[0034] 3. Low cost: The system costs less than 10,000 yuan and has high economic value;

[0035] 4. Broad application prospects: The system has the prospect of promotion and application in many disciplines, such as dendrochronology, climatology, ecology, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the intelligent annual ring width measuring device of the utility model;

[0037] Figure 2 It is a principle diagram of the intelligent annual ring width measurement system of the utility model.

[0038] In the figure, 100, slide module; 101, support frame; 102, lead screw; 103, linear guide; 104, motor; 105, slide; 106, laser rangefinder; 110, stage; 120, microscope assembly; 130, laser rangefinder. DETAILED DESCRIPTION

[0039] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical method of the present invention, but the present invention is not limited to these embodiments.

[0040] like Figure 1 As shown, the utility model provides an intelligent annual ring width measuring device, comprising:

[0041] Slide module 100;

[0042] The stage 110 is arranged on the slide module 100 and its axis movement is realized by the slide module 100. The tree core sample to be tested is placed on the stage 110. Through the movement of the slide module 100, the sample can be placed under the focusing area of ​​the microscope assembly 120;

[0043] The microscope assembly 120 is located on the top of the stage 110 and has high-definition imaging capability. After the tree core sample is placed on the stage 110 and moved into position, the microscope assembly 120 can take detailed photos of the growth ring details on the surface of the sample. The obtained high-definition images are then transmitted to a computer for subsequent image processing and analysis.

[0044] The laser rangefinder 130 is installed at one end of the slide module 100, and its function is to monitor and measure the linear displacement of the stage 110 in real time. Since the tree core sample moves with the stage 110, the distance between the tree rings, that is, the annual ring width, can be indirectly calculated by accurately recording the moving distance of the slide 105;

[0045] The measuring device in this embodiment is the hardware part. The entire hardware part realizes the automatic collection of tree core samples and high-definition image transmission, while the computer software part conducts in-depth analysis of the received image data, uses image recognition technology to accurately calibrate the annual ring lines, and generates detailed annual ring analysis charts.

[0046] The advantage of this intelligent measuring device is that it greatly improves the accuracy and efficiency of acquiring tree ring data, simplifies the operating process, reduces labor costs and technical barriers, and is particularly suitable for research applications in multiple disciplines such as dendrochronology, climatology, and ecology.

[0047] Preferably, the slide module 100 includes:

[0048] Support frame 101;

[0049] The lead screw 102 and the linear guide rail 103 together constitute the core transmission and guide system of the slide module 100;

[0050] The motor 104 is arranged at the end of the support frame 101, and the rotating shaft of the motor 104 is connected to the screw rod 102 through a coupling;

[0051] The slide 105 is threadedly connected to the lead screw 102 , and the linear guide rail 103 passes through the slide 105 .

[0052] The mechanical transmission process is as follows: when the shaft of the motor 104 rotates, the screw 102 is driven to rotate through the coupling, and the screw 102 drives the slide 105 to perform linear motion in a threaded manner. Therefore, the laser ranging sensor measures the linear displacement of the slide 105, which is equivalent to the annual ring width.

[0053] Preferably, the laser rangefinder 130 is arranged on one side of the end of the support frame 101, and a laser rangefinder plate 106 is provided on the side of the slide 105, wherein when the slide 105 moves linearly along the ball screw and the linear guide 103 driven by the motor 104, the laser rangefinder 130 continuously monitors and records the change in the linear distance between it and the laser rangefinder plate 106.

[0054] This design achieves indirect and accurate measurement of tree ring width by mapping the position change of the slide 105 measured by the laser rangefinder 130 to the annual ring spacing on the tree core sample.

[0055] Specifically, the annual ring width is achieved by measuring the difference between the two moving position values ​​of the slide 105 through the sensor. The principle is the traditional linear measurement method. The linear measurement method controls the motor 104 to rotate and drives the screw 102 to rotate, and obtains the displacement distance of the two annual ring lines of the annual ring. The position value of the slide 105 before and after the two displacements is directly obtained through the laser ranging sensor, and then the absolute difference between the two is calculated to obtain the annual ring width Tw: Tw = |d1-d2|.

[0056] Preferably, the microscope assembly 120 integrates an industrial camera and an optical microscope, wherein:

[0057] The industrial camera is installed inside the microscope assembly 120 and is used to capture the image of the tree core sample placed on the stage 110 in real time. Thanks to the high performance and high resolution characteristics of the industrial camera, the extremely fine texture and structural details of the tree core sample can be captured;

[0058] Optical microscopes are used to magnify the microstructure of the tree core samples, making the annual rings and the subtle changes between them more clearly visible. Through the magnification function of optical microscopes, even very small annual ring widths can be effectively visually identified.

[0059] The organic combination of the two enables the device to more accurately obtain high-definition image data of tree core samples. These image data are then transmitted to the computer system. After professional image processing and analysis software, they can accurately identify the annual ring boundaries, calculate the annual ring width, and generate detailed annual ring analysis charts, ultimately achieving scientific research on the growth history of trees and environmental changes. This design greatly improves the automation and accuracy of annual ring information collection and reduces the impact of manual operation and subjective errors.

[0060] like Figure 2 As shown, the utility model also provides an intelligent annual ring width measurement system, comprising:

[0061] The above-mentioned intelligent annual ring width measuring device;

[0062] The data processing module transmits the high-definition image of the tree core sample captured by the microscope assembly 120 to the computer, and performs a series of operations such as image preprocessing, annual ring line recognition, and position calculation through the data processing module to convert the collected raw image data into annual ring related information that can be analyzed and stored;

[0063] The data analysis module is used to implement the analysis and control of tree ring information.

[0064] Preferably, the data processing module uses a host computer software, which is designed based on C# language and OpenCvSharp toolkit, and realizes the functions of position calculation, motor 104 control and image recognition by communicating with industrial cameras, collectors and controllers.

[0065] Preferably, the data analysis module uses two methods to analyze the annual ring information, namely, electron microscopy positioning method and image processing aided method, so as to improve the measurement accuracy of annual ring width and the recognition accuracy of annual ring lines.

[0066] Specifically, the electron microscopy positioning method is based on the conventional microscopy positioning method and uses the laser rangefinder 130 to sense the linear displacement of the slide 105 to achieve the measurement of the annual ring width.

[0067] The image-assisted method combines advanced image recognition technology and motor 104 control algorithm on the basis of electron microscopy positioning method, and interprets tree ring images in real time through industrial cameras and display screens. This can not only help identify the boundaries of annual rings, but also further improve the analysis efficiency and reliability of measurement results by precisely controlling the movement of the slide 105.

[0068] This intelligent tree-ring width measurement system overcomes the limitations of traditional tree-ring measurement methods with its precise hardware configuration and innovative software algorithms, greatly improving the speed, accuracy and convenience of acquiring tree-ring information. It has wide applicability and extremely high scientific research value, especially in many fields such as dendrochronology, climatology, ecology, etc. It has far-reaching application prospects.

[0069] Compared with the prior art, the measuring device combined with the measuring system of the present application has at least the following advantages:

[0070] 1. Strong practicability: The system can accurately and quickly obtain tree ring information, reducing work intensity and operation complexity;

[0071] 2. Low work fatigue: Through automated control and image recognition technology, manual operations are reduced and work intensity is lowered;

[0072] 3. Low cost: The system costs less than 10,000 yuan and has high economic value;

[0073] 4. Broad application prospects: The system has the prospect of promotion and application in many disciplines, such as dendrochronology, climatology, ecology, etc.

[0074] The technical means disclosed in the scheme of the utility model are not limited to the technical means disclosed by the above technical means, but also include technical solutions composed of any combination of the above technical features. The above is a specific implementation method of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

[0075] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0076] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0077] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. An intelligent annual ring width measuring device, characterized in that: include: Slide module; A stage, which is arranged on the slide module and realizes the movement of its axis through the slide module; A microscope assembly is located on the top of the stage. After the tree core sample is placed on the stage, the stage is moved to the bottom of the microscope assembly by the slide module. The microscope assembly captures a high-definition image of the tree core sample and transmits it to a computer for image processing and analysis. A laser rangefinder is installed at one end of the slide module and is used to measure the moving distance of the stage.

2. The intelligent annual ring width measuring device according to claim 1, characterized in that: The slide module comprises: Support frame; A lead screw and a linear guide rail, which are arranged on the support frame; A motor, which is arranged at the end of the support frame, and the rotating shaft of the motor is connected to the screw rod through a coupling; A slide is threadedly connected to the lead screw, and the linear guide rail passes through the slide.

3. The intelligent annual ring width measuring device according to claim 2, characterized in that: The loading platform is mounted on the slide, and the motor drives the lead screw to rotate, thereby driving the slide to move and realizing synchronous movement of the loading platform.

4. The intelligent annual ring width measuring device according to claim 2, characterized in that: The laser rangefinder is arranged on one side of the end of the support frame, and a laser rangefinder plate is arranged on the side of the slide, and the laser rangefinder measures the straight-line distance between the laser rangefinder and the laser rangefinder plate.

5. The intelligent annual ring width measuring device according to claim 1, characterized in that: The microscope assembly is integrated with an industrial camera, and the industrial camera is used to take images of tree core samples.

6. The intelligent annual ring width measuring device according to claim 1, characterized in that: The microscope assembly is also integrated with an optical microscope for magnifying the image of the tree core sample.

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