Visual accurate DBH (diameter at breast height) measuring device
By designing a visual diameter-at-breast-length (DBH) measurement device that combines a drive motor, an adjusting screw, and a miniature camera, the problem of inconvenient operation of existing tools is solved, and the automation, accurate measurement, and convenient operation of tree DBH are realized.
Patent Information
- Application Number
- CN202520321728.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing tools are inconvenient to operate when measuring tree diameter at breast height (DBH) and are difficult to accurately measure DBH on trees with abnormal shapes.
A visual and precise thorax measurement device was designed, which combines a drive motor, adjusting screw, fixed block, sliding block, miniature camera and display screen to achieve automated measurement, and displays the measurement results through a micro controller and camera.
It enables automated and accurate measurement of tree diameter at breast height (DBH), is suitable for trees with abnormal shapes, is easy to operate, and has high measurement efficiency.
Smart Images

Figure CN223636779U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tree breast height diameter measurement technical field, concretely is a visual accurate breast height diameter measuring device. BACKGROUND
[0002] Breast height diameter also is called diameter, refers to the diameter of arbor trunk chest height from ground surface, when cross section is abnormal, the average value of maximum value and minimum value is taken, the chest height of different arbor has difference, and the chest height of different countries has difference, and the chest height position of China and most countries is defined as 1.3 meters high above ground.
[0003] When measuring tree breast height diameter, often need to use measuring tools such as tape and caliper, tape and caliper need to be held to keep fixed, and operation is relatively inconvenient, and measurement efficiency is relatively low, and simultaneously, due to reasons such as growth environment, natural disaster or human intervention, the form of some trees is abnormal, in this case, the 1.3 meters of tree can not accurately reflect the true breast height diameter of tree, therefore, higher or lower position needs to be measured, but the existing tool is very inconvenient to operate when measuring higher or lower position. UTILITY MODEL CONTENT
[0004] In order to solve the above technical problem, the utility model provides a visual accurate breast height diameter measuring device, which has the advantages of convenient operation and accurate measurement.
[0005] In order to achieve the above purpose, the utility model is realized by the following technical scheme: a visual accurate breast height diameter measuring device, comprising a measuring scale provided with a scale on the upper side, characterized in that a fixing block is arranged on one side of the measuring scale, a sliding block is sleeved on the other side of the measuring scale, an adjusting screw is arranged on the upper side of the measuring scale, the adjusting screw is connected with a driving end of a driving motor arranged on one side of the fixing block, the sliding block is slidably connected with the adjusting screw on the upper side, and a connecting block is arranged on the other side of the measuring scale.
[0006] A microcontroller is arranged on the upper side of the connecting block, a micro camera corresponding to the scale is arranged on the upper side of the sliding block, an adjusting rod is rotatably connected with one side of the connecting block, a limiting assembly is inserted into the upper side of the adjusting rod and penetrates the front side of the connecting block, a handle is sleeved on the lower side of the adjusting rod, and a control button and a display screen are arranged on the upper side of the handle respectively.
[0007] Preferably, the limiting assembly comprises a plug rod, a ring of plug holes is arranged on the upper side of the adjusting rod, the plug rod penetrates the connecting block on one side and is inserted into the plug holes on the upper side of the adjusting rod, a first magnetic block is embedded on the front side of the connecting block, and a second magnetic block is arranged on the other side of the plug rod.
[0008] Preferably, the fixed block and the sliding block are provided with rubber blocks on the lower side, and the rubber blocks are internally embedded with pressure sensors.
[0009] Preferably, the measuring ruler is provided with limiting sliding ways on the upper and lower sides, and the upper side of the sliding block is in sliding connection with the limiting sliding ways.
[0010] Preferably, the adjusting rod is provided with a fastening bolt in the middle part.
[0011] In the above scheme, the front side of the second magnetic block is provided with a pull ring.
[0012] The beneficial effects of the present application are as follows:
[0013] 1. The driving motor, the adjusting screw rod, the fixed block and the sliding block are cooperated, and the electrical connection among the display screen, the miniature camera and the miniature controller is combined, so that the automatic and accurate visual measurement of the tree breast diameter is realized, and the measurement efficiency is high.
[0014] 2. The adjusting rod with adjustable length is rotationally connected to one side of the measuring ruler, so that the operator can conveniently measure the breast diameter of the tree with abnormal shape, and the operation is convenient and the application range is wide. DRAWINGS
[0015] Figure 1 It is a top view structural schematic diagram of the present application.
[0016] Figure 2 It is a front view structural schematic diagram of the present application.
[0017] Figure 3 It is a local sectional view enlarged structural schematic diagram of the present application.
[0018] Figure 4 It is a side view sectional view structural schematic diagram of the measuring ruler of the present application.
[0019] In the drawing: 1, measuring ruler, 2, fixed block, 3, sliding block, 4, adjusting screw rod, 5, driving motor, 6, connecting block, 7, miniature controller, 8, miniature camera, 9, adjusting rod, 10, handle, 11, control button, 12, display screen, 13, plug rod, 14, first magnetic block, 15, second magnetic block, 16, rubber block, 17, pressure sensor, 18, limiting sliding way, 19, fastening bolt, 20, pull ring. DETAILED DESCRIPTION
[0020] Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the present application.
[0021] For example, Figures 1-4As shown, a visual precise chest diameter measuring device comprises a measuring scale 1 provided with a scale on the upper side. The measuring scale 1 is provided with a fixed block 2 on one side, and a sliding block 3 is sleeved on the other side of the measuring scale 1. The upper side of the measuring scale 1 is provided with an adjusting screw 4. The adjusting screw 4 is connected with the driving end of a driving motor 5 provided on one side of the fixed block 2. The upper side of the sliding block 3 is in sliding connection with the adjusting screw 4. The other side of the measuring scale 1 is provided with a connecting block 6.
[0022] The upper side of the connecting block 6 is provided with a microcontroller 7. The upper side of the sliding block 3 is provided with a micro camera 8 corresponding to the scale. The connecting block 6 is rotatably connected with an adjusting rod 9 on one side. A limiting assembly is inserted through the front side of the connecting block 6 and connected with the upper side of the adjusting rod 9. The lower side of the adjusting rod 9 is sleeved with a handle 10. The upper side of the handle 10 is provided with a control button 11 and a display screen 12, respectively.
[0023] The limiting assembly comprises a plug rod 13. The upper side of the adjusting rod 9 is provided with a ring of insertion holes. The plug rod 13 is inserted through the connecting block 6 on one side and connected with the insertion holes on the upper side of the adjusting rod 9. The front side of the connecting block 6 is embedded with a first magnetic block 14. The other side of the plug rod 13 is provided with a second magnetic block 15.
[0024] The lower side of the fixed block 2 and the sliding block 3 is provided with a rubber block 16. The rubber block 16 is embedded with a pressure sensor 17.
[0025] It should be noted that when measuring the diameter of the tree, the operator first holds the handle 10 and keeps the measuring scale 1 horizontal. Then the inner side of the fixed block 2 is tightly attached to one side of the tree. Then the control button 11 is pressed. The driving motor 5 drives the adjusting screw 4 to rotate, so as to drive the sliding block 3 to move horizontally on the measuring scale 1. Then the measuring scale 1 is clamped at the trunk. With the movement of the sliding block 3, the pressure sensor 17 inside the rubber block 16 is extruded. When the value of the pressure sensor 17 reaches a certain value, the microcontroller 7 controls the driving motor 5 to stop running. At this time, the micro camera 8 operates and reads the scale on the upper side of the measuring scale 1, and visually displays it through the display screen 12.
[0026] The microcontroller 7 comprises a central processing unit, a memory, an input / output (I / O) interface, an analog / digital converter and a power management unit. The images collected by the micro camera 8 can be transmitted to the display screen 12, so as to facilitate the accurate measurement of the diameter of the tree and the visual display of the measurement data.
[0027] Some trees may be abnormal due to growth environment, natural disasters or human intervention, etc. In this case, the tree 1.3 meters may not accurately reflect the true diameter of the tree, so a higher or lower position needs to be measured. At this time, the operator can rotate the adjusting rod 9 and adjust the angle between the adjusting rod 9 and the measuring ruler 1, then use the plug rod 13 and the plug hole to plug, fix the angle between the adjusting rod 9 and the measuring ruler 1, at the same time, the second magnetic block 15 on the other side of the plug rod 13 and the first magnetic block 14 attract each other, which can prevent the plug rod 13 from falling off, then the length of the adjusting rod 9 can be adjusted, so as to measure the diameter of the tree at a higher or lower position, which is convenient for operation.
[0028] The limiting slide 18 is arranged on the upper and lower sides of the measuring ruler 1, and the upper side of the sliding block 3 is slidably connected with the limiting slide 18, so as to increase the stability of the movement of the sliding block 3 and prevent the measurement value from deviating.
[0029] The middle part of the adjusting rod 9 is provided with a fastening bolt 19, which is used to fix the length of the adjusting rod 9.
[0030] The second magnetic block 15 is provided with a pull ring 20 on the front side, which is convenient for the operator to pull out the plug rod 13.
[0031] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A visualized accurate chest diameter measuring device comprising a measuring scale provided with a scale on the upper side, characterized in that, The measuring scale is provided with a fixed block on one side, a sliding block is sleeved on the other side of the measuring scale, an adjusting screw is arranged on the upper side of the measuring scale, the adjusting screw is connected with a driving end of a driving motor arranged on one side of the fixed block, the sliding block is slidably connected with the adjusting screw, and a connecting block is arranged on the other side of the measuring scale; A microcontroller is arranged on the upper side of the connecting block, a micro camera corresponding to the scale is arranged on the upper side of the sliding block, an adjusting rod is rotatably connected with one side of the connecting block, a limiting component is inserted into the upper side of the adjusting rod and penetrates through the front side of the connecting block, a handle is sleeved on the lower side of the adjusting rod, and a control button and a display screen are arranged on the upper side of the handle.
2. A visualized accurate chest diameter measuring device according to claim 1, characterized in that, The limiting component comprises a plug rod, a plurality of plug holes are arranged on the upper side of the adjusting rod, the plug rod penetrates through the connecting block and is inserted into the plug holes on the upper side of the adjusting rod, a first magnetic block is embedded on the front side of the connecting block, and a second magnetic block is arranged on the other side of the plug rod.
3. A visualized accurate chest diameter measuring device according to claim 1, characterized in that, Rubber blocks are arranged on the lower sides of the fixed block and the sliding block, and a pressure sensor is embedded in the rubber blocks.
4. A visualized accurate chest diameter measuring device according to claim 1, characterized in that, Limiting slides are arranged on the upper and lower sides of the measuring scale, and the upper side of the sliding block is slidably connected with the limiting slides.
5. A visualized accurate chest diameter measuring device according to claim 1, characterized in that, A fastening bolt is arranged in the middle portion of the adjusting rod.
6. A visualized accurate chest diameter measuring device according to claim 2, wherein, A pull ring is arranged on the front side of the second magnetic block.