A barks xylem interface intelligent scanning transmission detection system and method

Abstract

This invention belongs to the field of non-destructive testing technology for the internal structure of agricultural and forestry trees. Its purpose is to provide an intelligent scanning transmission detection system and method for the bark-xylem interface. The system includes a host computer, an X-ray beam-limiting scanning detection unit, and a walking mechanism. The host computer intelligently controls the walking mechanism, which in turn coordinates with the X-ray beam-limiting scanning detection unit to perform local transmission scanning of the bark along a preset path. The method includes: based on preset scanning requirements, intelligently and synchronously controlling the walking mechanism and the X-ray beam-limiting scanning detection unit to perform local high-speed, high-stability, and high-precision transmission imaging of the tree; processing the X-ray transmission image group according to an intelligent algorithm; and constructing a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface at the tens of micrometer level. This invention can achieve high-resolution, low-energy-consumption, and low-damage transmission detection of the bark-xylem interface while ensuring tree safety, for applications in rubber tapping, live detection of forest pests and diseases, and other fields.

Description

Technical Field

[0001] This invention belongs to the field of non-destructive detection technology of the internal structure of agricultural and forestry trees, specifically involving an intelligent scanning transmission detection system and method for the bark-xylem interface, which is applicable to scenarios such as intelligent rubber tapping of rubber trees and live detection of forest pests and diseases. Background Technology

[0002] Rubber tapping is a crucial step in the natural rubber production process. Traditional tapping typically relies on manual labor, with tappers using their experience to control the depth and trajectory of the tapping blade, aiming to reach the water sac layer between the bark and xylem. However, due to variations in bark thickness, tree age, and growing environment among different trees, manual experience often fails to precisely control the tapping depth, resulting in errors typically exceeding 2 millimeters. Furthermore, this over-reliance on manual experience increases the risk of misoperation. On one hand, tapping too deeply can damage the xylem and even kill the tree; on the other hand, tapping too shallowly leads to insufficient rubber yield, severely impacting rubber production efficiency.

[0003] To overcome the technical limitations of manual rubber tapping and achieve automated and high-precision control of rubber tree tapping operations, it is urgently necessary to accurately detect the interface structure between the bark and xylem to precisely identify the bark-xylem water sac layer interface, which is on the order of 1 millimeter in thickness. X-ray transmission imaging technology has the advantages of high resolution and good penetration. Therefore, existing technologies have developed schemes to obtain information about the internal structure of trees using X-ray transmission imaging. However, existing technologies generally use direct transmission of X-rays at a large cone angle for imaging. In using existing technologies, the inventors discovered the following drawbacks: First, due to the large divergence angle of X-rays, multiple interface superposition phenomena are easily generated when penetrating the bark and xylem, resulting in overlapping of the bark and xylem interfaces, making it difficult to accurately identify the true interface location; at the same time, the large cone angle transmission will produce a significant projection magnification effect, resulting in a large error in bark thickness measurement, making it difficult to meet the detection requirements of millimeter-level or even higher precision. Secondly, the large-angle scattering of rays results in a large amount of rays not being effectively utilized, leading to low energy utilization, which not only increases equipment power consumption but also increases equipment costs. Furthermore, large-area X-ray irradiation of living trees may cause strong ionizing damage, which is not conducive to long-term monitoring and application.

[0004] Therefore, how to achieve high-resolution, low-energy-consumption, and low-damage bark-xylem interface transmission detection technology while ensuring tree safety has become an urgent technical problem to be solved in the fields of intelligent rubber tapping of rubber trees and live detection of forest pests and diseases. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problems to at least a certain extent. The present invention provides an intelligent scanning transmission detection system and method for bark-xylem interface, which solves the problems of multiple bark-xylem interface superposition interference, insufficient accuracy of interface thickness measurement and waste of X-rays in the existing large cone angle X-ray direct transmission tree detection imaging method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides an intelligent scanning and transmission detection system for the bark-xylem interface, comprising a host control unit, an X-ray beam-limiting scanning detection unit, and a walking mechanism; wherein... The host controller is used to generate walking control commands and scanning control commands according to preset scanning requirements; wherein, the scanning requirements include at least scanning frequency and scanning path; The walking mechanism is installed on the tree and is communicatively connected to the host control computer. The walking mechanism is used to move along a preset scanning path according to the walking control command, so as to drive the X-ray beam-limiting scanning detection unit to perform local transmission scanning of the bark-xylem interface of the tree. The X-ray beam-limiting scanning detection unit includes a beam-limiting scanning light source and a detection plate arranged opposite to each other. Both the beam-limiting scanning light source and the detection plate are mounted on the walking mechanism, and both the beam-limiting scanning light source and the detection plate are communicatively connected to the host control computer. The beam-limiting scanning unit is used to perform local transmission scanning of the bark-xylem interface of the tree according to the scanning control command using a preset scanning frequency. The detection plate is used to acquire the X-ray transmission image group generated by the beam-limiting scanning unit after performing local transmission scanning of the tree, and send it to the host control computer. The host computer is also used to process the acquired X-ray transmission image set to construct a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of the tree.

[0007] In one possible design, the host control unit includes an intelligent control unit and a communication unit. The intelligent control unit communicates with the beam-limiting scanning light source, the detection plate, and the walking mechanism through the communication unit. The intelligent control unit is used to generate scanning control commands and walking control commands according to preset scanning requirements. The intelligent control unit is also used to process the acquired X-ray transmission image group to construct a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of the tree.

[0008] In one possible design, the beam-limited scanning light source includes an X-ray generator, a focusing cavity, and a beam-limiting box. The focusing cavity and the beam-limiting box are arranged sequentially along the light emission direction of the X-ray generator. The focusing cavity and the beam-limiting box are used to shape the X-rays output by the X-ray generator to obtain scanning beams with various beam widths and emission angles. The shaping process includes at least one of beam limiting, grazing, refraction, and reflection. The scanning beam includes at least one of narrow slit beams, point beams, and large slit beams, depending on the beam width.

[0009] In one possible design, the focusing cavity adopts a glass-polished inner curved surface gold-plated structure for focusing X-rays with a divergence angle greater than 40° in the X-rays output by the X-ray generator. The beam-limiting box has two first strip-shaped slits on its two sides along the light output direction of the X-ray generator. The interior of the beam-limiting box has at least one partition, and the partition has a second strip-shaped slit opposite to the first strip-shaped slit. The partition is provided with an adjustment plate for adjusting the length of the second strip-shaped slit.

[0010] In one possible design, the beam-limiting scanning light source performs a localized transmission scan of the tree with a width greater than the thickness of the bark and less than the radius of the trunk.

[0011] In one possible design, the walking mechanism includes a mounting frame and a main control circuit. The mounting frame is mounted on a tree and has a circumferential rotating assembly mounted on it. The circumferential rotating assembly carries an axial lifting assembly, both of which are electrically connected to the main control circuit. The main control circuit is mounted on the mounting frame and is communicatively connected to a host computer. The circumferential rotation component is used to drive the axial lifting component to rotate synchronously around the circumference of the tree; The axial lifting assembly is used to drive the beam-limiting scanning light source and the detection plate in the X-ray beam-limiting scanning detection unit to move synchronously up and down along the axial direction of the tree.

[0012] In one possible design, both the circumferential rotation component and the axial lifting component are driven by motors; correspondingly, the main control circuit includes a controller, a communication module, a first driver, and a second driver, all of which are electrically connected to the controller; the controller communicates with the host computer through the communication module; the first driver is used to drive the motor of the circumferential rotation component, and the second driver is used to drive the motor of the axial lifting component.

[0013] In one possible design, a U-shaped frame is mounted on the axial lifting assembly, the beam-limiting scanning light source is mounted on one arm of the U-shaped frame, and the detection plate is mounted on the other arm of the U-shaped frame.

[0014] Secondly, the present invention provides a method for intelligent scanning and transmission detection of the bark-xylem interface, implemented based on a host computer in the intelligent scanning and transmission detection system for the bark-xylem interface described in any of the above claims, the method comprising: Based on preset scanning requirements, walking control commands and scanning control commands are generated; wherein, the scanning requirements include at least scanning frequency and scanning path; The walking control command is sent to the walking mechanism so that the walking mechanism moves along a preset scanning path according to the walking control command, and drives the X-ray beam-limiting scanning detection unit to perform local transmission scanning of the bark-xylem interface of the tree. The scanning control command is simultaneously sent to the beam-limiting scanning light source in the X-ray beam-limiting scanning detection unit, so that the beam-limiting scanning unit performs local transmission scanning of the bark-xylem interface of the tree according to the scanning control command using a preset scanning frequency, and the detection plate acquires the X-ray transmission image group generated after the beam-limiting scanning unit performs local transmission scanning of the tree. The system receives a set of X-ray transmission images sent by the detection plate and constructs a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of the tree based on the set of X-ray transmission images.

[0015] In one possible design, a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of a tree is constructed based on the X-ray transmission image set, including: Edge detection was performed on the X-ray transmission image group to obtain the bark boundary curve and xylem boundary curve of the tree; Construct a three-dimensional cylindrical coordinate system, and obtain the boundary coordinates of the bark boundary curve and the xylem boundary curve in the three-dimensional cylindrical coordinate system respectively; Based on the boundary coordinates of the bark boundary curve and the xylem boundary curve, a three-dimensional modeling process is performed to obtain a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of the tree within the local transmission scanning range.

[0016] Thirdly, the present invention provides an electronic device, comprising: Memory, used to store computer program instructions; and, A processor is configured to execute the computer program instructions to perform the operation of the intelligent scanning transmission detection method for the bark-xylem interface as described in any of the preceding claims.

[0017] Fourthly, the present invention provides a computer program product, including a computer program or instructions, wherein when the computer program or instructions are executed by a computer, they implement a smart scanning transmission detection method for the bark-xylem interface as described in any of the above claims.

[0018] The beneficial effects of this invention are as follows: 1) This invention uses a local transmission method to accurately cover the bark location, concentrates energy utilization, obtains bark information accurately and efficiently, and can reduce detection energy, greatly reducing radiation ionization damage to living trees. 2) Based on this invention, by performing three-dimensional reconstruction on the X-ray transmission image group obtained by scanning, and constructing a three-dimensional model of the bark-xylem interface with an accuracy of tens of micrometers, high-stability and high-resolution transmission imaging detection of the local internal structure of trees can be achieved. This can solve the problem of inaccurate thickness measurement caused by multiple interfaces in traditional large cone angle X-ray transmission, thereby effectively avoiding the problem of multiple interface overlap caused by existing large cone angle transmission technology, improving the interface recognition accuracy, and providing a reliable data foundation for subsequent automatic rubber tapping trajectory planning or forest pest and disease detection. It has important application prospects in rubber tapping operations and live detection of forest pests and diseases, and has huge economic benefits. 3) In the implementation of this invention, the walking mechanism can be directly installed on the tree without disassembly. When conducting tree detection operations, only the X-ray beam-limiting scanning detection unit and the host control computer need to be carried. These devices are small in size, making them easier to carry and install, thus improving the convenience and efficiency of the detection operation.

[0019] Other beneficial effects of the present invention will be further explained in the specific embodiments. Attached Figure Description

[0020] Figure 1 This is a block diagram of the intelligent scanning transmission detection system for the bark-xylem interface in Example 1; Figure 2 This is a schematic diagram of the internal structure of the beam-limiting scanning light source in Example 1; Figure 3 yes Figure 2 A schematic diagram of the beam-gathering structure in the beam-gathering cavity; Figure 4 This is a schematic diagram of the installation of the X-ray beam-limiting scanning detection unit and the walking mechanism in Example 1; Figure 5 yes Figure 4 Schematic diagram of the X-ray beam-limiting scanning detection unit and U-shaped frame; Figure 6 This is a schematic diagram of the X-ray beam-limiting scanning detection unit in Example 1; Figure 7This is a schematic diagram of the X-ray transmission image scanned by the X-ray beam-limiting scanning detection unit in Example 1; Figure 8 This is a flowchart of the intelligent scanning transmission detection method for the bark-xylem interface in Example 1.

[0021] In the diagram: 1-Host control unit; 2-Walking mechanism; 201-Mounting frame; 202-U-shaped frame; 203-Slide rail; 204-First rack; 205-Mounting frame; 206-First slider; 207-Second slider; 208-Second rack; 3-Beam-limiting scanning light source; 301-X-ray generator; 302-Beam-focusing cavity; 303-Beam-limiting box; 304-First strip-shaped slit; 305-Partition plate; 306-Second strip-shaped slit; 4-Detector plate. Detailed Implementation

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0023] Example 1: This embodiment discloses an intelligent scanning transmission detection system for the bark-xylem interface, such as... Figures 1 to 5 As shown, it includes a host control unit 1, an X-ray beam-limiting scanning detection unit, and a walking mechanism 2. It should be understood that the host control unit 1 can also be called a host computer. In this embodiment, the host control unit 1 is preferably an embedded computer, as embedded computers are more convenient to carry since the detection operation is outdoors. The host controller 1 is used to generate walking control commands and scanning control commands according to preset scanning requirements; wherein, the scanning requirements include at least scanning frequency and scanning path; specifically, in this embodiment, the host controller 1 can control the ray parameters of the beam-limiting scanning light source 3 in the X-ray beam-limiting scanning detection unit.

[0024] Specifically, in this embodiment, the host control unit 1 includes an intelligent control unit and a communication unit. The intelligent control unit is connected to the beam-limiting scanning light source 3, the detection plate 4, and the walking mechanism 2 through the communication unit. The intelligent control unit is used to generate scanning control commands and walking control commands according to preset scanning requirements. The intelligent control unit is also used to process the acquired X-ray transmission image group to construct a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of the tree.

[0025] The X-ray beam-limiting scanning detection unit includes a beam-limiting scanning light source 3 and a detection plate 4 arranged opposite to each other. Both the beam-limiting scanning light source 3 and the detection plate 4 are mounted on the walking mechanism 2 and are communicatively connected to the host control computer 1. The beam-limiting scanning unit is used to perform local transmission scanning of the bark-xylem interface of a tree at a preset scanning frequency according to the scanning control command. The detection plate 4 is used to acquire the X-ray transmission image group generated after the beam-limiting scanning unit performs local transmission scanning of the tree and send it to the host control computer 1. It should be noted that the beam-limiting scanning unit can output a shaped scanning beam with a preset beam width. The detection plate 4 is arranged opposite to the emitting end of the beam-limiting scanning unit, so the detection plate 4 can receive the shaped X-rays as they pass through the bark-xylem interface, where the attenuation varies due to differences in material density, atomic number, and thickness, and convert these rays into local grayscale images. Multiple scans yield local grayscale images that constitute an X-ray transmission image group. In this embodiment, the resolution of the X-ray transmission image group reaches the pixel level.

[0026] like Figure 2 As shown, the beam-limited scanning light source 3 includes an X-ray generator 301, a focusing cavity 302, and a beam-limiting box 303. The focusing cavity 302 and the beam-limiting box 303 are arranged sequentially along the light output direction of the X-ray generator 301. The focusing cavity 302 and the beam-limiting box 303 are used to shape the X-rays output by the X-ray generator 301 to obtain scanning beams with various beam widths and emission angles. The shaping process includes at least one of beam limiting, grazing, refraction, and reflection. The scanning beam includes at least one of narrow slit beam, point beam, and large slit beam, depending on the beam width.

[0027] It should be noted that each type of scanning beam has different advantages. For example, the narrow slit beam has a smaller width, less transmission thickness to living trees, and less damage to living trees. The wide slit beam has a larger width than the narrow slit beam, greater transmission thickness to living trees, and higher scanning efficiency for living trees.

[0028] Specifically, in this embodiment, the focusing cavity 302 adopts a high-precision glass polished inner curved surface gold-plated structure, used to focus X-rays with a divergence angle greater than 40° in the X-rays output by the X-ray generator 301, so as to reduce the divergence angle; specifically, as... Figure 3 As shown, the focusing principle of the focusing cavity 302 is as follows: X-rays are focused at a speed less than the critical angle on the surface of a high atomic number material. θ C Grazing incidence produces total internal reflection; among which, the critical angle ,Z The atomic number of the coating of the focusing cavity 302 is [missing information]. For coating density, E Photon energy.

[0029] The beam-limiting box 303 has two first strip-shaped slits 304 on its two sides along the light output direction of the X-ray generator 301. The beam-limiting box 303 has at least one partition 305 inside. The partition 305 has a second strip-shaped slit 306 opposite to the first strip-shaped slit 304. The partition 305 is provided with an adjustment plate for adjusting the length of the second strip-shaped slit 306.

[0030] In this embodiment, the width of the local transmission scan of the tree by the beam-limited scanning light source 3 is greater than the thickness of the bark and less than the radius of the trunk. It should be noted that this setting ensures that the entire tree is not scanned during the scanning process of the beam-limited scanning light source 3, and the width of the local transmission scan is only slightly greater than the thickness of the bark. In this embodiment, by employing local transmission, the bark location is precisely covered, energy utilization is concentrated, bark information is obtained accurately and efficiently, and the ionization damage to living trees can be significantly reduced.

[0031] The walking mechanism 2 is installed on the tree and is communicatively connected to the host control unit 1. The walking mechanism 2 is used to move along a preset scanning path according to the walking control command, so as to drive the X-ray beam-limiting scanning detection unit to perform local transmission scanning of the bark-xylem interface of the tree.

[0032] like Figure 4 and Figure 5 As shown, the walking mechanism 2 includes a mounting frame 201 and a main control circuit. The mounting frame 201 is mounted on a tree. A circumferential rotation component is mounted on the mounting frame 201, and an axial lifting component is mounted on the circumferential rotation component. Both the circumferential rotation component and the axial lifting component are electrically connected to the main control circuit. The main control circuit is located on the mounting frame 201 and is communicatively connected to the host controller 1. The circumferential rotation component is used to drive the axial lifting component to rotate synchronously around the circumference of the tree; The axial lifting assembly is used to drive the beam-limiting scanning light source 3 and the detection plate 4 in the X-ray beam-limiting scanning detection unit to move up and down synchronously along the axial direction of the tree.

[0033] It should be noted that in this embodiment, the circumferential rotation component can be used to drive the X-ray scanning detection unit to rotate around the tree circumferentially, and the axial lifting component can be used to drive the X-ray scanning detection unit to move along the tree axial direction. During use, the mounting bracket 201 can be directly installed on the tree without disassembly. Only the X-ray beam-limiting scanning detection unit and the host control unit 1 need to be carried during operation. This type of equipment is small in size, effectively improving the convenience and efficiency of the detection operation.

[0034] In this embodiment, both the circumferential rotation component and the axial lifting component are driven by motors. Correspondingly, the main control circuit includes a controller, a communication module, a first driver, and a second driver. The communication module, the first driver, and the second driver are all electrically connected to the controller. The controller communicates with the host computer 1 through the communication module. The first driver drives the motor of the circumferential rotation component, and the second driver drives the motor of the axial lifting component. In this embodiment, the controller may be a microprocessor such as a single-chip microcomputer, and the first driver and the second driver may use conventional motor drive circuits in the art, such as H-bridge drive circuits, which are not limited here.

[0035] Specifically, such as Figure 4 As shown, the top and bottom of the mounting frame 201 are both arc-shaped, and both are equipped with slide rails 203 and first racks 204. The circumferential rotation assembly includes a mounting frame 205, and the top and bottom of the mounting frame 205 are provided with first sliders 206. Two first sliders 206 are slidably connected to the slide rails 203. Each first slider 206 is equipped with a first drive motor, and gears are installed on the drive shafts of the two first drive motors, respectively meshing with the corresponding first racks 204. The main control circuit can drive the first mounting frame to move circumferentially on the outside of the tree by controlling the first drive motors. In addition, in this embodiment, the host controller 1 is installed in the cavity of the first slider 206.

[0036] The axial lifting assembly includes a second slider 207 slidably connected to the mounting frame 205. A second rack 208 is provided on both inner sides of the mounting frame 205. A gear set and a second drive motor are housed within the second slider 207. The gear set meshes with the second rack 208, and the second drive motor is connected to the gear set for transmission. The main control circuit controls the second drive motor, which in turn drives the second slider 207 to move up and down on the mounting frame. With the cooperation of the circumferential rotation assembly and the axial lifting assembly, the second slider 207 can drive the X-ray scanning detection unit to perform an arc-shaped upward or downward movement on the outer side of the tree.

[0037] Specifically, a U-shaped frame 202 is mounted on the axial lifting assembly. The beam-limiting scanning light source 3 is mounted on one arm of the U-shaped frame 202, and the detection plate 4 is mounted on the other arm of the U-shaped frame 202. This allows for local scanning of the rubber-tapping area of ​​the tree, significantly reducing the scanning range and minimizing damage to the living tree. Specifically, during implementation, the U-shaped frame surrounds the tree, with the tree positioned between the beam-limiting scanning light source 3 and the detection plate 4. The detection plate 4 can acquire X-ray transmission images generated after the beam-limiting scanning light source 3 performs a local transmission scan of the tree along the scanning path, and upload the X-ray transmission images to the host control computer 1.

[0038] It should be understood that the system in this embodiment can be applied not only to rubber tree tapping operations, but also to the detection and scanning of other living trees, making it highly versatile and practical.

[0039] In this embodiment, a schematic diagram of the X-ray beam-limiting scanning detection unit scanning trees is shown below. Figure 6 As shown, in Figure 6 The diagram illustrates the positions of the beam-limited scanning light source 3 and the detector plate 4, where a represents the scanning width, b represents the bark width, and c represents the distance between the bark and the wood core. The length units are mm. During scanning, the intelligent scanning transmission detection system for the bark-xylem interface operates according to... Figure 6 Move in the direction of the arrow in the image; the scanned image is as follows: Figure 7 As shown, it can achieve clear cortical imaging of the interface area between the bark and xylem.

[0040] The host computer 1 is also used to process the acquired X-ray transmission image set to construct a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of the tree. In this embodiment, the accuracy of the three-dimensional contour coordinate model is at the tens of micrometer level, which can display the internal perspective features of the bark-xylem interface. It should be understood that before rubber tapping, the rubber tapping trajectory of the rubber tree can be generated based on the three-dimensional contour coordinate model, such as the cutting depth and cutting direction, to provide guidance for achieving high-precision automated rubber tapping of the rubber tree.

[0041] This embodiment enables high-resolution, low-energy-consumption, and low-damage transmission detection of the bark-xylem interface while ensuring tree safety. Specifically, this embodiment uses a host control unit 1, an X-ray beam-limiting scanning detection unit, and a walking mechanism 2. The host control unit 1 intelligently controls the walking mechanism 2, which in turn links the X-ray beam-limiting scanning detection unit to perform local transmission scanning of the bark along a preset path. This obtains a set of X-ray transmission images generated after the local transmission scanning of the tree, and ultimately constructs a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface, enabling the accurate acquisition of the structural information of the bark-xylem interface. This embodiment employs a localized transmission method, precisely covering the bark location. This concentrated energy utilization results in accurate and efficient acquisition of bark information, while reducing detection energy and significantly minimizing X-ray ionization damage to living trees. Furthermore, based on this embodiment, three-dimensional reconstruction is performed on the scanned X-ray transmission images, constructing a three-dimensional model of the bark-xylem interface with tens of micrometers of precision. This enables highly stable, high-resolution transmission imaging detection of the tree's local internal structure, resolving the inaccurate thickness measurement problem caused by multiple interfaces in traditional large-cone-angle X-ray transmission. This effectively avoids the multiple interface overlap problem caused by existing large-cone-angle transmission technology, improving interface recognition accuracy and providing a reliable data foundation for subsequent automatic rubber tapping trajectory planning or forest pest and disease detection. It has significant application prospects and substantial economic benefits in rubber tapping operations and live forest pest and disease detection. Additionally, during implementation, the walking mechanism 2 can be directly installed on the tree without disassembly. When conducting tree detection operations, only the X-ray beam-limiting scanning detection unit and the host control unit 1 need to be carried. These devices are small in size, making them easier to carry and install, thus improving the convenience and efficiency of the detection operation.

[0042] Example 2: This embodiment discloses an intelligent scanning transmission detection method for the bark-xylem interface, implemented based on the host control computer 1 in the intelligent scanning transmission detection system for the bark-xylem interface described in any one of Embodiments 1. Figure 8 As shown, the method includes: S1. Generate walking control commands and scanning control commands according to preset scanning requirements; wherein, the scanning requirements include at least scanning frequency and scanning path; specifically, in this embodiment, the host control computer 1 runs dedicated application software of this method, which can configure scanning requirements such as scanning frequency and scanning path in the application software. The scanning frequency is the transmission operation performed by the X-ray beam-limiting scanning detection unit after moving a certain distance on the scanning path; the scanning path is the arc-shaped movement direction and distance of the X-ray beam-limiting scanning detection unit on the outside of the tree.

[0043] S2. Send the walking control command to the walking mechanism 2 so that the walking mechanism 2 moves along the preset scanning path according to the walking control command and drives the X-ray beam-limiting scanning detection unit to perform local transmission scanning of the bark-xylem interface of the tree. S3. The scanning control command is synchronously sent to the beam-limiting scanning light source 3 in the X-ray beam-limiting scanning detection unit, so that the beam-limiting scanning unit performs local transmission scanning of the bark-xylem interface of the tree according to the scanning control command and a preset scanning frequency, and the detection plate 4 acquires the X-ray transmission image group generated by the beam-limiting scanning unit after performing local transmission scanning of the tree; In this embodiment, when the X-ray beam-limiting scanning detection unit moves along the scanning path, the host controller 1 synchronously sends the scanning control command to the beam-limiting scanning light source 3 in the X-ray beam-limiting scanning detection unit, and the X-ray beam-limiting scanning detection unit responds to the intelligent synchronous scanning command and emits a beam-limiting scanning beam based on the scanning frequency to perform local transmission scanning of the tree on the scanning path.

[0044] S4. Receive the X-ray transmission image set sent by the detector plate 4, and construct a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of the tree based on the X-ray transmission image set.

[0045] As a further optimization of this embodiment, a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of a tree is constructed based on the X-ray transmission image set, including: S401. Perform edge detection on the X-ray transmission image group to obtain the bark boundary curve and xylem boundary curve of the tree; S402. Construct a three-dimensional cylindrical coordinate system, and obtain the boundary coordinates of the bark boundary curve and the xylem boundary curve in the three-dimensional cylindrical coordinate system respectively; S403. Perform three-dimensional modeling based on the boundary coordinates of the bark boundary curve and the xylem boundary curve to obtain a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of the tree within the local transmission scanning range.

[0046] This embodiment uses X-ray transmission image sets to construct a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface at the tens of micrometer level. This facilitates the generation of the rubber tree tapping trajectory, such as cutting depth and cutting direction, based on the local perspective feature three-dimensional model, providing guidance for achieving high-precision automated tapping of rubber trees.

[0047] It should be noted that the technical details and effects of the method provided in this embodiment 2 can be found in embodiment 1, and will not be repeated here.

[0048] Example 3: Based on Embodiment 1 or 2, this embodiment discloses an electronic device, which may be a smartphone, tablet computer, laptop computer, or desktop computer, etc. The electronic device may be referred to as a user terminal, portable terminal, desktop terminal, etc., and includes: Memory, used to store computer program instructions; and, The processor is used to execute the computer program instructions to perform the operation of the intelligent scanning transmission detection method for the bark-xylem interface as described in any of Embodiment 2.

[0049] Example 4: Based on any one of Embodiments 1 to 3, this embodiment discloses a computer program product, including a computer program or instructions, which, when executed by a computer, implements a smart scanning transmission detection method for the bark-xylem interface as described in any one of Embodiments 2. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.

[0050] Obviously, those skilled in the art will understand that the modules or steps of the present invention described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby storing them in a storage device for execution by a computing device, or fabricating them separately as individual integrated circuit modules, or fabricating multiple modules or steps as a single integrated circuit module. Thus, the present invention is not limited to any particular hardware and software combination.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smart scanning transmission detection system for the bark-xylem interface, characterized in that, It includes a host control computer (1), an X-ray beam-limiting scanning detection unit, and a walking mechanism (2); among which, The host controller (1) is used to generate walking control commands and scanning control commands according to preset scanning requirements; wherein, the scanning requirements include at least scanning frequency and scanning path; The walking mechanism (2) is installed on the tree and is communicatively connected to the host control computer (1); the walking mechanism (2) is used to move along a preset scanning path according to the walking control command, so as to drive the X-ray beam-limiting scanning detection unit to perform local transmission scanning of the bark-xylem interface of the tree. The X-ray beam-limiting scanning detection unit includes a beam-limiting scanning light source (3) and a detection plate (4) arranged opposite to each other. The beam-limiting scanning light source (3) and the detection plate (4) are both mounted on the walking mechanism (2), and the beam-limiting scanning light source (3) and the detection plate (4) are both communicatively connected to the host computer (1). The beam-limiting scanning unit is used to perform local transmission scanning of the bark-xylem interface of the tree according to the scanning control command using a preset scanning frequency. The detection plate (4) is used to acquire the X-ray transmission image group generated after the beam-limiting scanning unit performs local transmission scanning of the tree, and send it to the host computer (1). The host computer (1) is also used to process the acquired X-ray transmission image group to construct a three-dimensional contour coordinate model of the internal perspective features of the bark xylem interface of the tree.

2. The system according to claim 1, characterized in that, The host control unit (1) includes an intelligent control unit and a communication unit. The intelligent control unit is connected to the beam-limiting scanning light source (3), the detection plate (4) and the walking mechanism (2) through the communication unit. The intelligent control unit is used to generate scanning control commands and walking control commands according to preset scanning requirements. The intelligent control unit is also used to process the acquired X-ray transmission image group to construct a three-dimensional contour coordinate model of the internal perspective features of the bark xylem interface of the tree.

3. The system according to claim 1, characterized in that, The beam-limited scanning light source (3) includes an X-ray generator (301), a beam-focusing cavity (302), and a beam-limiting box (303). The beam-focusing cavity (302) and the beam-limiting box (303) are arranged sequentially along the light output direction of the X-ray generator (301). The beam-focusing cavity (302) and the beam-limiting box (303) are used to shape the X-rays output by the X-ray generator (301) to obtain scanning beams with various beam widths and emission angles. The shaping process includes at least one of beam limiting, grazing, refraction, and reflection. The scanning beam includes at least one of narrow slit beam, point beam, and large slit beam depending on the beam width.

4. The system according to claim 3, characterized in that, The focusing cavity (302) adopts a glass polished inner curved surface gold-plated structure, which is used to focus X-rays with a divergence angle greater than 40° in the X-rays output by the X-ray generator (301); The beam-limiting box (303) has two sides with first strip-shaped slits (304) respectively arranged along the light output direction of the X-ray generator (301). The beam-limiting box (303) has at least one partition (305) inside. The partition (305) has a second strip-shaped slit (306) opposite to the first strip-shaped slit (304). The partition (305) is provided with an adjustment plate for adjusting the length of the second strip-shaped slit (306).

5. The system according to claim 1, characterized in that, The beam-limited scanning light source (3) performs local transmission scanning of the tree with a width greater than the thickness of the bark and less than the radius of the trunk.

6. The system according to claim 1, characterized in that, The walking mechanism (2) includes a mounting frame (201) and a main control circuit. The mounting frame (201) is mounted on a tree. A circumferential rotation component is provided on the mounting frame (201). The circumferential rotation component is equipped with an axial lifting component. Both the circumferential rotation component and the axial lifting component are electrically connected to the main control circuit. The main control circuit is located on the mounting frame (201) and is communicatively connected to the host controller (1). The circumferential rotation component is used to drive the axial lifting component to rotate synchronously around the circumference of the tree; The axial lifting assembly is used to drive the beam-limiting scanning light source (3) and the detection plate (4) in the X-ray beam-limiting scanning detection unit to move up and down synchronously along the axial direction of the tree.

7. The system according to claim 6, characterized in that, Both the circumferential rotation component and the axial lifting component are driven by motors; correspondingly, the main control circuit includes a controller, a communication module, a first driver and a second driver, and the communication module, the first driver and the second driver are all electrically connected to the controller; the controller is connected to the host computer (1) through the communication module; the first driver is used to drive the motor of the circumferential rotation component and the second driver is used to drive the motor of the axial lifting component.

8. The system according to claim 6, characterized in that, A U-shaped frame (202) is installed on the axial lifting assembly, the beam-limiting scanning light source (3) is installed on one arm of the U-shaped frame (202), and the detection plate (4) is installed on the other arm of the U-shaped frame (202).

9. A method for intelligent scanning transmission detection of the bark-xylem interface, characterized in that, The method is implemented based on the host control computer (1) in the intelligent scanning and transmission detection system for the bark-xylem interface according to any one of claims 1-8, and the method includes: Based on preset scanning requirements, walking control commands and scanning control commands are generated; wherein, the scanning requirements include at least scanning frequency and scanning path; The walking control command is sent to the walking mechanism (2) so that the walking mechanism (2) moves along the preset scanning path according to the walking control command and drives the X-ray beam-limiting scanning detection unit to perform local transmission scanning of the bark-xylem interface of the tree. The scanning control command is simultaneously sent to the beam-limiting scanning light source (3) in the X-ray beam-limiting scanning detection unit, so that the beam-limiting scanning unit performs local transmission scanning of the bark-wood interface of the tree according to the scanning control command using a preset scanning frequency, and the detection plate (4) acquires the X-ray transmission image group generated after the beam-limiting scanning unit performs local transmission scanning of the tree. The X-ray transmission image set sent by the detection plate (4) is received, and a three-dimensional contour coordinate model of the internal perspective features of the bark xylem interface of the tree is constructed based on the X-ray transmission image set.

10. The method according to claim 9, characterized in that, Based on the aforementioned X-ray transmission image set, a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of a tree is constructed, including: Edge detection was performed on the X-ray transmission image group to obtain the bark boundary curve and xylem boundary curve of the tree; Construct a three-dimensional cylindrical coordinate system, and obtain the boundary coordinates of the bark boundary curve and the xylem boundary curve in the three-dimensional cylindrical coordinate system respectively; Based on the boundary coordinates of the bark boundary curve and the xylem boundary curve, a three-dimensional modeling process is performed to obtain a three-dimensional contour coordinate model of the internal perspective features of the bark-xylem interface of the tree within the local transmission scanning range.

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