A device for non-destructive and continuous measurement of rubber tree bark thickness and its measurement method

Abstract

The invention discloses a device for non-destructively and continuously measuring the thickness of rubber tree bark and a measuring method thereof. Firstly, non-destructive measurement can be achieved by means of ultrasonic technology, thereby achieving the purpose of not damaging the rubber tree during the measurement process, protecting the rubber tree, and alleviating many inconveniences of traditional measurement. Secondly, by cleverly combining ultrasonic measurement and intelligent analysis technology, not only can the measurement accuracy be improved, so that the measurement error is less than 0.1 mm, but also the measurement is more efficient and continuous measurement can be achieved. Moreover, all thicknesses of the entire rubber tree cross section can be accurately calculated by means of an analysis system. Simultaneously, due to the waterproof and dustproof design of an integral shell, the device can adapt to work under various climatic conditions, is simpler to operate and use, and does not require very high technical requirements for use. Finally, by using wireless charging technology, the device can be charged anytime and anywhere, is convenient for staff to carry and use outdoors, and is convenient for charging, thereby maximizing practicality and having extremely high promotion and application value.

Description

Technical Field

[0001] The invention relates to the technical field of forestry measurement, in particular to a device for non-destructively and continuously measuring the thickness of rubber tree bark and a measuring method thereof. Background Art

[0002] Natural rubber is an important industrial raw material, widely used in the fields of medicine, industry, transportation, construction, etc. With the development of global industrialization, the demand for natural rubber continues to increase, so the production and supply of natural rubber has also become a significant industry.

[0003] In the production of natural rubber, tapping is a very important step. Tapping refers to the process of using knives to cut the bark and rubber of rubber trees to obtain natural rubber.

[0004] Rubber bark measurement is a very important part of rubber tapping production. Its importance is reflected in the following aspects:

[0005] 1. Ensure the efficiency and quality of rubber tapping: By measuring the thickness of the rubber bark, we can understand the growth and change trend of the rubber bark, so as to adjust the depth and position of the tapping knife in time to ensure the efficiency and quality of rubber tapping.

[0006] 2. Protecting the growth and development of rubber trees: Rubber bark is an important component of rubber trees and has a significant impact on their growth and development. By measuring the rubber bark, we can prevent damage to the bark caused by tapping knives, thus protecting the growth and development of rubber trees.

[0007] 3. Improve production efficiency and economic benefits: By measuring the rubber bark, the rubber tapping production process can be monitored and controlled, thereby improving production efficiency and economic benefits.

[0008] Based on the above, there are many measuring feeler gauges on the market with various technical principles, including mechanical scale gauges and digital display gauges. The most basic principle is to use a handheld handle to push the feeler gauge and a spring to reset the feeler gauge, but they generally have the following defects and shortcomings:

[0009] 1. Damage to rubber trees caused by feeler gauges: The feeler gauge will pierce the water sac cortex of the rubber tree, which will cause local dead bark of the tree.

[0010] 2. Low efficiency: The existing feeler gauges have relatively high technical requirements, and the strength of each person's hand varies greatly, so the measurement adaptability is very poor.

[0011] 3. The existing digital display feeler gauge uses precise grating technology, which is not capable of coping with the harsh agricultural environment and is not widely applicable.

[0012] 4. The measurement accuracy is very poor. The requirements for spring reset and force during measurement are relatively high. The error is more than 1mm. The thickness of the main rubber-producing area of ​​the rubber tree is about 2mm.

[0013] 5. Continuous measurement cannot be achieved, and only measurement points can be taken and the average value can be calculated manually.

[0014] Therefore in view of the above defects, it is necessary to design a device and a measuring method for non-destructive continuous measurement of rubber bark thickness. Summary of the Invention

[0015] The technical problem to be solved by the present invention is to provide a device for non-destructively and continuously measuring the thickness of rubber bark and a measuring method thereof, so as to solve the problems raised in the background technology.

[0016] To solve the above technical problems, the technical solution of the present invention is: a device for non-destructive and continuous measurement of rubber bark thickness and a measuring method thereof, comprising a rubber bark thickness signal acquisition system and a rubber bark thickness acquisition data analysis system, wherein the rubber bark thickness signal acquisition system is composed of a potting cabin and an ultrasonic transducer, the rubber bark thickness acquisition data analysis system is composed of a calculation and processing main control board and a touch display screen, the rubber bark thickness signal acquisition system is used to continuously collect the bark thickness of rubber trees, the rubber bark thickness acquisition data analysis system is connected to the rubber bark thickness signal acquisition system using an electrical signal, can receive the collected bark thickness signal input by the rubber bark thickness signal acquisition system and perform calculation and analysis on it, so as to achieve error compensation and correction to obtain an average thickness. The sealing cabin is used to seal and place a number of ultrasonic transducers to improve the signal recognition accuracy and waterproof and dustproof effect of the ultrasonic transducers. The number of the ultrasonic transducers is several, and they have the effect of sending and receiving signals. After the signal is sent, the transducers contact the rubber bark and receive the feedback signal to achieve the measurement of the thickness of the rubber bark. The computing and processing main control board is connected to the ultrasonic transducer using electrical signals, and can receive the feedback signal sent by the ultrasonic transducer and convert it into a digital signal. The measured bark thickness data is then obtained by calculating and analyzing the time difference of the ultrasonic signal propagating in different bark thicknesses. The touch display screen is connected to the computing and processing main control board using electrical signals, and can receive the measured bark thickness data obtained by the computing and processing main control board and display it in the form of a graph.

[0017] Furthermore, a shell is fixedly provided on the outside of the rubber tree bark thickness signal acquisition system and the rubber tree bark thickness acquisition data analysis system, and the shell is respectively connected to the rubber tree bark thickness signal acquisition system and the rubber tree bark thickness acquisition data analysis system by bolts.

[0018] Furthermore, a battery is fixedly installed at the middle end of the shell, and the battery is connected to the shell by a snap buckle, and the battery is electrically connected to the rubber bark thickness signal acquisition system and the rubber bark thickness acquisition data analysis system respectively.

[0019] Furthermore, a wireless charging coil plate is fixedly provided on one side of the interior of the shell. The wireless charging coil plate is connected to the shell by bolts, and the wireless charging coil plate is electrically connected to the battery.

[0020] Furthermore, a measuring and fitting groove is provided at the bottom of the shell, and the measuring and fitting groove is an arc-shaped groove.

[0021] A method for non-destructively and continuously measuring the thickness of rubber tree bark comprises the following steps:

[0022] Step 1: Determine the signal collection target: According to the characteristics of the rough bark, sand bark, yellow bark, water bag bark and wood in the rubber tree that can produce different reflections and diffractions of the signal, multiple collection targets are selected. The signal generated by the ultrasonic transducer reaches the rough bark as the t1 collection target, the signal generated by the ultrasonic transducer passes through the rough bark to reach the sand bark as the t2 collection target, the signal generated by the ultrasonic transducer passes through the rough bark and the sand bark to reach the yellow bark as the h collection target, the signal generated by the ultrasonic transducer passes through the rough bark and the sand bark and is reflected by the yellow bark and reaches the sand bark again as the t3 collection target, and the signal generated by the ultrasonic transducer passes through the rough bark and the sand bark and is reflected by the yellow bark and passes through the sand bark to reach the rough bark as the t4 collection target;

[0023] Step 2: Data acquisition and analysis: The main control board performs calculations on the multiple target data collected by the ultrasonic transducer in step 1. The time difference between the ultrasonic signal entering the bark of different thicknesses and the reflection propagation is calculated as Δt1 = (t3 + t4) - (t1 + t2). The measured thickness h1 is then obtained by reverse deduction.

[0024] Step 3: Perform continuous high-frequency sampling: Move the rubber bark thickness signal acquisition system back and forth along the outer side of the rubber bark so that the ultrasonic transducer signal can be sent to different areas to obtain n number of sampling data;

[0025] Step 4: Compensation and correction of data acquisition errors: The main control board performs calculations on the n number of sampled data in step 3. The calculation formula is h = (h1+h2+h3…+hn) / n, and finally obtains the average thickness of the rubber bark after average calculation and compensation correction.

[0026] Compared with the prior art, the device for non-destructive and continuous measurement of rubber bark thickness and the measuring method thereof have the following advantages:

[0027] 1. First of all, ultrasonic technology can be used to achieve non-destructive measurement, so as not to damage the rubber trees during the measurement process, thereby protecting the rubber trees and alleviating many inconveniences of traditional measurement.

[0028] 2. Secondly, the ingenious combination of ultrasonic thickness measurement and intelligent analysis technology can not only improve the measurement accuracy, making the measurement error less than 0.1mm, but also make it more efficient and achieve continuous measurement. With the help of the analysis system, all the thicknesses of the entire rubber tree cross section can be accurately calculated and analyzed.

[0029] 3. At the same time, due to the waterproof and dustproof design of the overall shell, it can adapt to work under various climatic conditions. The operation and use are also simpler and do not require too high technical requirements.

[0030] 4. Finally, with the help of wireless charging technology, it can be charged anytime and anywhere, which is also convenient for staff to carry and charge outdoors, maximizing its practicality, so it has extremely high promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The invention relates to a device for non-destructively and continuously measuring the thickness of rubber tree bark and a measuring method thereof;

[0032] Figure 2 It is a device for non-destructive and continuous measurement of the thickness of rubber tree bark and its measurement method. A partial enlarged view of the rubber tree status;

[0033] Figure 3 This is a device for non-destructive and continuous measurement of the thickness of rubber bark.

[0034] Figure 4 A top view of a device for non-destructive and continuous measurement of rubber bark thickness;

[0035] Figure 5 A stereogram of a device for non-destructive and continuous measurement of the thickness of rubber bark;

[0036] Figure 6 This is a device for non-destructive and continuous measurement of the thickness of rubber bark. A cross-sectional view;

[0037] Figure 7 This is a flow chart of a measurement method for non-destructive and continuous measurement of rubber bark thickness.

[0038] Filling chamber 1, ultrasonic transducer 2, computing and processing main control board 3, touch screen 4, housing 5, battery 6, wireless charging coil board 7, measuring and fitting groove 8.

[0039] The following specific implementation manner will be further described in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0040] In the following text, numerous specific details are set forth in order to provide a thorough understanding of the concepts that form the basis of the described embodiments; however, it will be apparent to those skilled in the art that the described embodiments may be practiced without some or all of these specific details. In other instances, well-known processing steps are not specifically described.

[0041] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 As shown, a device for non-destructively and continuously measuring the thickness of rubber bark and a measuring method thereof include a potting cabin 1, an ultrasonic transducer 2, a computing and processing main control board 3, a touch screen 4, a housing 5, a battery 6, a wireless charging coil board 7, and a measuring and fitting groove 8;

[0042] In one embodiment, the potting chamber 1 is located at the lower end of the housing 5. Its main function is to facilitate the installation of a number of ultrasonic transducers 2 therein. This not only improves the signal recognition accuracy of the ultrasonic transducers, but also further enhances the waterproof and dustproof effect when combined with the housing 5, allowing the device to adapt to various climatic conditions.

[0043] In one embodiment, the ultrasonic transducer 2 is mainly composed of a transmitting end, a receiving end and a transducer connecting line. The transmitting end and the receiving end are combined into a group of ultrasonic transducers 2 to realize signal collection and reception of a certain area. Since the potting chamber 1 has multiple groups built in, the signal collection range and quantity are increased.

[0044] In one embodiment, the computing and processing main control board 3 is composed of a computing processor, a memory, and an A / D converter. The computing processor can perform computing and analysis, the memory can record the data after computing and analysis for easy retrieval and use, and the A / D converter can realize the conversion between electrical signals and digital signals.

[0045] In one embodiment, the touch screen 4 is composed of a touch module, a display module, and a PCB circuit board. The touch module facilitates touch operation, the display module can display images, and the PCB circuit board can receive and process signals from the main control board 3 and control the display image of the display module, thereby displaying the bark thickness in a graphical form, which is convenient for staff to grasp more intuitively.

[0046] In one embodiment, the housing 5 mainly fixes and protects the potting cabin 1, ultrasonic transducer 2, computing and processing main control board 3, touch screen 4, battery 6, and wireless charging coil board 7, and enhances waterproof, dustproof, and impact-proof effects. The measuring and fitting groove 8 at the bottom of the housing 5 is an arc-shaped groove structure, which is conducive to fitting on the outside of the rubber bark, making it easier for workers to move the device back and forth along the outside of the bark, thereby enhancing operability.

[0047] In one embodiment, the battery 6 can supply power to the ultrasonic transducer 2, the computing and processing main control board 3, and the touch screen 4. In combination with the wireless charging coil board 7, wireless charging can be achieved, thereby improving convenience and solving the problem of traditional wired charging affecting the waterproof effect.

[0048] Specifically, when measuring the thickness of the rubber bark, the measuring fitting groove 8 at the bottom of the shell 5 is tightly attached to the outside of the rubber bark, so that the sealing cabin 1 area is located close to the outside of the rubber bark, which is beneficial for the signal from the transmitting end of the ultrasonic transducer 2 to be injected into the bark and the receiving end to receive the reflected signal. According to the characteristics of the rough bark, sand bark, yellow bark, water bag bark and wood in the rubber tree, they can produce different reflections and diffractions of the signal, and the outer side of the yellow bark is sand bark, while the inner side is water bag bark, which will cause a strong difference in the reflection and diffraction of the signal. Therefore, it is convenient to select the collection signals of different cortexes. When the A / D converter in the main control board 3 for computing and processing receives the electrical signal input from the receiving end in the ultrasonic transducer 2, it can convert it into a corresponding digital signal and send it. The relevant calculation and analysis are carried out in the computing processor, that is, the measured bark thickness data h1 is obtained by calculating and analyzing the time difference of the ultrasonic signal propagating in different bark thicknesses; at the same time, the staff moves the device back and forth on the outside of the rubber bark, so that the signal of the ultrasonic transducer can be sent to different areas, thereby obtaining n high-frequency sampling data, and then the computing processor performs average calculation and compensation correction on the n high-frequency samples, and finally obtains the required average thickness of the rubber bark, and then the PCB circuit board in the touch display screen 4 can receive the signal input by the computing and processing main control board 3 and control the display module to display the bark thickness status in the corresponding graphical form, which is ultimately convenient for the staff to grasp more intuitively.

[0049] The present invention is not limited to the above-mentioned specific implementation methods. Various changes made by ordinary technicians in this field based on the above-mentioned concept without creative work are all within the scope of protection of the present invention.

Claims

1. A device for non-destructive and continuous measurement of rubber tree bark thickness, for measuring rubber tree bark thickness, characterized in that It includes a rubber bark thickness signal acquisition system and a rubber bark thickness acquisition data analysis system. The rubber bark thickness signal acquisition system is composed of a potting cabin and an ultrasonic transducer. The rubber bark thickness acquisition data analysis system is composed of a computing and processing main control board and a touch screen display. The rubber tree bark thickness signal acquisition system is used to continuously collect the bark thickness of rubber trees; The rubber tree bark thickness data acquisition and analysis system is connected with the rubber tree bark thickness signal acquisition system by an electrical signal, and can receive the collected bark thickness signal input by the rubber tree bark thickness signal acquisition system and perform a computational analysis on it, so as to achieve error compensation and correction to obtain an average thickness effect; The potting chamber is used to seal and place a number of ultrasonic transducers, thereby improving the signal recognition accuracy of the ultrasonic transducers and improving their waterproof and dustproof effects; The ultrasonic transducer has several pieces and has the effect of sending and receiving signals. After the signal is sent, it contacts the rubber bark and receives a feedback signal to measure the thickness of the rubber bark. The computing and processing main control board is connected to the ultrasonic transducer by an electrical signal, and can receive the feedback signal sent by the ultrasonic transducer and convert it into a digital signal, and then calculate and analyze the propagation time difference of the ultrasonic signal at different bark thicknesses to obtain the measured bark thickness data; The touch screen is connected to the calculation and processing main control board by an electrical signal, and can receive the measured bark thickness data obtained by the calculation and processing main control board and then display it in the form of a graph.

2. a kind of device of nondestructive continuous measurement rubber tree bark thickness as claimed in claim 1, is characterized in that The rubber tree bark thickness signal acquisition system and the rubber tree bark thickness acquisition data analysis system are further provided with a shell on the outside, and the shell is respectively connected to the rubber tree bark thickness signal acquisition system and the rubber tree bark thickness acquisition data analysis system by using bolts.

3. a kind of device of nondestructive continuous measurement rubber tree bark thickness as claimed in claim 2, is characterized in that A battery is also fixedly arranged at the middle end of the shell. The battery is connected to the shell by a snap buckle, and the battery is electrically connected to the rubber bark thickness signal acquisition system and the rubber bark thickness acquisition data analysis system respectively.

4. a kind of device of non-destructive continuous measurement rubber tree bark thickness as claimed in claim 3, is characterized in that A wireless charging coil plate is also fixedly provided on one side of the interior of the shell. The wireless charging coil plate is connected to the shell by bolts, and the wireless charging coil plate is electrically connected to the battery.

5. a kind of device of non-destructive continuous measurement rubber tree bark thickness as claimed in claim 2, is characterized in that The bottom of the shell is also provided with a measuring and fitting groove, which is an arc-shaped groove.

6. A method for measuring the thickness of a rubber tree bark without any loss of quality and continuously, for measuring the thickness of a rubber tree bark, characterized in that: The measuring method comprises the following steps: Step 1: Determine the signal collection target: According to the characteristics of the rough bark, sand bark, yellow bark, water bag bark and wood in the rubber tree that can produce different reflections and diffractions of the signal, multiple collection targets are selected. The signal generated by the ultrasonic transducer reaches the rough bark as the t1 collection target, the signal generated by the ultrasonic transducer passes through the rough bark to reach the sand bark as the t2 collection target, the signal generated by the ultrasonic transducer passes through the rough bark and the sand bark to reach the yellow bark as the h collection target, the signal generated by the ultrasonic transducer passes through the rough bark and the sand bark and is reflected by the yellow bark and reaches the sand bark again as the t3 collection target, and the signal generated by the ultrasonic transducer passes through the rough bark and the sand bark and is reflected by the yellow bark and passes through the sand bark to reach the rough bark as the t4 collection target; Step 2: Data acquisition and analysis: The main control board performs calculations on the multiple target data collected by the ultrasonic transducer in step 1. The time difference between the ultrasonic signal entering the bark of different thicknesses and the reflection propagation is calculated as Δt1 = (t3 + t4) - (t1 + t2). The measured thickness h1 is then obtained by reverse deduction. Step 3: Perform continuous high-frequency sampling: Move the rubber bark thickness signal acquisition system back and forth along the outer side of the rubber bark so that the ultrasonic transducer signal can be sent to different areas to obtain n number of sampling data; Step 4: Compensation and correction of data acquisition errors: The main control board performs calculations on the n number of sampled data in step 3. The calculation formula is h = (h1+h2+h3…+hn) / n, and finally obtains the average thickness of the rubber bark after average calculation and compensation correction.

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