CN111059986A - Tree breast-height diameter measuring scale with digital display and data storage functions - Google Patents
Tree breast-height diameter measuring scale with digital display and data storage functions Download PDFInfo
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- CN111059986A CN111059986A CN201911239831.3A CN201911239831A CN111059986A CN 111059986 A CN111059986 A CN 111059986A CN 201911239831 A CN201911239831 A CN 201911239831A CN 111059986 A CN111059986 A CN 111059986A
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- 238000013500 data storage Methods 0.000 title claims abstract description 21
- 210000000481 breast Anatomy 0.000 claims abstract description 16
- 210000000038 chest Anatomy 0.000 claims abstract description 11
- 230000009471 action Effects 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000004891 communication Methods 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims description 23
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- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 2
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 4
- 239000002028 Biomass Substances 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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Abstract
A tree breast-height diameter measuring scale with digital display and data storage functions comprises: the device comprises a measuring line retracting mechanism, an encoder, a circuit board, a display screen and a power supply; the measuring wire retracting mechanism is used for storing the measuring wire, releasing the measuring wire under the action of pulling force when measuring, and automatically retracting the measuring wire under the action of the spring after the pulling force is reduced or disappears; the encoder converts the length of the measuring wire which is pulled out into the rotation angle of the encoder, and the length of the measuring wire which is pulled out is calculated by the microprocessor; the core of the circuit board is a microprocessor which is responsible for processing data transmitted by each module, calculating the chest diameter value of the tree and realizing the function control of modules such as a power supply, a storage module, an encoder, a display module, a communication module and the like; the display screen displays the measured breast diameter value of the tree. The measured breast diameter value is automatically displayed on the liquid crystal display screen, manual reading is not needed, errors are reduced, and the precision is improved. The measured value is saved in the inside storage of chest footpath chi, has saved the manpower, raises the efficiency.
Description
Technical Field
The invention relates to a tree breast-height diameter measuring scale with digital display and data storage functions, belongs to the technical field of field monitoring of forestry, plant ecology and the like, and particularly relates to the research fields of tree growth and development, forest ecosystem monitoring and the like.
Background
The diameter at breast height, which is called the diameter at breast height, is the diameter of the tree which is 1.3m higher than the ground and parallel to the ground. The breast height is a key parameter for biomass estimation, the standing tree biomass can be estimated by combining a tree biomass model based on a breast height measurement value, the biomass of different levels of populations and communities can be further estimated, and the biomass plays a vital role in researches such as ecological system productivity, ecological functions and ecological system material circulation.
The traditional multipurpose breast diameter measuring tape and vernier caliper for breast diameter measurement need to manually read a measured value, are low in measurement efficiency and have errors caused by manual reading, and the breast diameter measurement and data recording need to be completed by two persons in a matching mode, so that the forest survey efficiency and the data accuracy are influenced. By means of the encoder, the microprocessor, the storage, the digital display and the communication technology, the accuracy, the precision and the automation degree of tree diameter-at-breast height measurement are improved, the tree diameter-at-breast height measurement method is an urgent requirement in the current tree measurement, and is a new technical means required by long-term monitoring of an ecosystem. The tree breast-height diameter measuring scale with the digital display and data storage functions researched and developed by the applicant is based on technical means such as an encoder, a microprocessor and digital display, the rapid and accurate measurement and data storage of the breast-height diameters of multiple trees are realized, the tree breast-height diameter monitoring data acquisition efficiency is improved, and the monitoring and scientific research capability of an ecological system is enhanced.
Disclosure of Invention
In order to overcome the defects of the existing tree breast-height diameter measuring method, the invention aims to provide the tree breast-height diameter measuring scale with the functions of digital display and data storage, so that the tree breast-height diameter can be measured quickly and accurately and the data can be stored automatically.
The invention provides a tree breast-height diameter measuring scale with digital display and data storage functions, which comprises: a measuring line retracting mechanism, an encoder, a circuit board, a display screen and a power supply part (shown in figure 1).
The length measurement of the invention adopts a pull wire type, namely a measurement wire is pulled out from a breast diameter ruler for measurement. The measuring line retracting mechanism is used for storing the measuring line, when the measuring line is measured, the measuring line can be released under the action of pulling force, and when the pulling force is reduced or disappears, the measuring line can be automatically retracted under the action of the spring.
The encoder is an important part of the breast diameter ruler, the measuring line bypasses a free rotating shaft of the encoder, when the measuring line is pulled out or retracted, the encoder shaft rotates by a corresponding angle, the encoder identifies the angle, and a signal is uploaded to the circuit board.
After receiving the data uploaded by the encoder, the circuit board converts the rotation angle of the encoder shaft into the length of the measuring wire pulled out or retracted, and the breast-height diameter and the circumference of the tree are displayed on the display screen. The circuit board has the functions of processing data and storing the data, and can download the stored data to a computer through a download interface for further processing.
Four keys on the circuit board are operated, namely power on/off, storage/return, clearing and browsing, so that the chest diameter ruler can be turned on/off, and the measured data can be stored, browsed and deleted.
The power supply provides the amount of power required during the measurement process.
The parts and functions of the tree breast-height measuring scale with digital display and data storage functions are detailed as follows:
power switch button: turning on or off the power supply;
data save and return button: saving the measured data or returning to the measurement;
data clear button: deleting the measured data;
data browse key: browsing historical measurement data;
USB interface: linking the USB line and exporting data;
an outlet: the measuring line is pulled out through the line outlet;
a display screen: displaying the measured breast diameter value of the tree;
a circuit board: the core of the circuit board is a microprocessor which is responsible for processing data transmitted by each module and calculating the chest diameter value of the tree, and meanwhile, the circuit board has the functions of controlling modules such as a power supply, a storage module, an encoder, a display module, a communication module and the like;
base: other components are fixed through a limiting part on the base;
a driving wheel: the fixed encoder drives the encoder to rotate through the traction of the measuring line;
an encoder: converting the length of the measuring wire to the rotation angle of the encoder, and calculating the length of the measuring wire by a microprocessor;
a guide wheel: the measuring line is guided to be better wired, the contact area between the measuring line and the driving wheel is increased, further the friction force is increased, the measuring line and the driving wheel are ensured not to slip, and the measuring precision is improved;
wire spool: a member for storing the measuring wire;
a spring: withdrawing the pulled measuring wire to the wire spool;
a battery compartment: storing four No. 7 disposable dry batteries;
measuring line fixing key: the measuring line is clamped and fixed at a certain length.
The base (9) is of a basic fixed structure, and the circuit board (8), the encoder (11), the wire spool (13), the guide wheel (12), the spring (14) and the like are fixed through a limiting part on the base (9).
The wire spool (13) is a part for storing the measuring wire, and has a groove on the outer cylindrical surface thereof, around which the measuring wire can be wound. One end of the measuring line can penetrate through the two small holes in the groove, one end of the measuring line is fixed on the wire spool (13), and the other end of the measuring line is pulled out through the guide wheel (12). The cylindrical space inside the wire spool (13) is used for installing a clockwork spring (14), and the pulled measuring wire can be retracted into the wire spool (13) under the action of the clockwork spring. Four spacing archs on the wire reel lid can insert four spacing grooves that correspond on the wire reel, seal clockwork spring inside the wire reel, ensure that clockwork spring can not be in disorder in the measurement process.
The effect of guide wheel (12) is that the guide measuring line walks the line better, and the measuring line comes out from wire reel (13), twines on drive wheel (10) behind first guide wheel, again through the second, third guide wheel (12), first, second guide wheel (12) are for increasing the area of contact between measuring line and drive wheel (10), and then increase frictional force, ensure that measuring line and drive wheel (10) do not skid, improve measurement accuracy. The third guide wheel (12) serves to better guide the measuring wire coming from the second guide wheel (12) into the outlet opening (6). The guide wheel (12) adopts an independent design, can rotate around the stand column instead of replacing the guide wheel with the stand column, and has the advantages of reducing the friction between the measuring line and the guide wheel, ensuring that the measuring line is not easily worn, prolonging the service life of the measuring line and simultaneously ensuring that the measuring line is more easily pulled out and withdrawn.
Grooves are formed in the guide wheel (12) and the transmission wheel (10), and the measuring line is limited in the grooves due to the tension. The measuring wire fixing key (16) can clamp the measuring wire to keep the measuring wire in a fixed state.
The core of the circuit board (8) part is a microprocessor which can realize the function control of modules such as a power supply, a storage module, an encoder module, a display module, a communication module and the like.
The power management module has two main functions: based on the batteries in the battery compartment (15), the switch (1) provides stable power supply and management power supply for the chip.
The microprocessor module is responsible for calculating the rotation angle data transmitted by the encoder (11), converting the rotation angle data into length data, receiving commands transmitted by keys such as a data storage and return key (2), a data clearing key (3) and a data browsing key (4) by microprocessor to complete related data processing tasks, and transmitting the measured data to the display screen (7).
The storage module is divided into two parts, one part is a ferroelectric memory, the other part is an SD card, and stored data can be transmitted to a computer through a USB interface (5).
The encoder module (11) is fixed on a rotating shaft of the driving wheel (10), the pulling of the measuring line drives the rotating shaft of the driving wheel (10) inside the breast diameter ruler, a synchronous encoder (11) is fixed on the shaft, and the length of the measuring line can be reversely deduced by measuring the rotating angle of the encoder (11).
The display module is a liquid crystal display (7), integrates a Chinese character library and an English character library, can display 2 lines of characters, is convenient to display measurement data and warning information, and is convenient for a user to read.
The communication module and the microprocessor are provided with TTL serial ports, and a computer can read data stored in the ferroelectric memory on the circuit through the USB port (5).
The invention has the advantages and beneficial effects that: (1) the measured chest diameter value can be automatically displayed on a liquid crystal display screen, the measured value does not need to be read manually, the human error can be effectively reduced, and the data precision is improved. (2) The chest diameter measured value can be preserved in the inside storage of chest diameter chi, need not to arrange the special messenger again and records the measured value, has saved the manpower, has promoted field survey's efficiency.
Drawings
Fig. 1 is a main module of the digital display breast diameter measuring scale of the invention.
FIG. 2 is a schematic diagram of the external form (in mm) of the digital display chest diameter ruler of the present invention.
FIG. 3 is a schematic diagram of the internal structure of the digital display chest diameter ruler of the invention.
FIG. 4 is a schematic view showing the display contents of the liquid crystal panel in the measurement state.
The numbers in the figures are specified below:
1. a power switch key; 2. a data save and return button; 3. a data clear button;
4. a data browsing key; 5. a USB interface; 6. an outlet; 7. a display screen; 8. a circuit board;
9. a base; 10. a driving wheel; 11. an encoder; 12. a guide wheel; 13. a wire spool; 14. a clockwork spring;
15. a battery compartment; 16. and measuring a wire fixing key.
Detailed Description
The functions of each part of the tree breast-height measuring scale with the functions of digital display and data storage are specifically described below with reference to fig. 2 and 3, and the technical scheme of the invention is further described with reference to the working principle and the using process.
1. Pressing a power switch key (1), electrifying the system and entering a working mode;
2. the measuring wire on the wire spool (13) is pulled out from the wire outlet (6) and surrounds the tree at the high position. The measuring line drives the encoder (11) to rotate through the guide wheel (12) and the transmission wheel (10) on the base in the pulling-out process, the rotating angle is transmitted to the microprocessor on the circuit board (8), the rotating angle of the shaft of the encoder (11) is converted into the pulling-out length of the measuring line by the microprocessor on the circuit board (8), and the breast diameter and the perimeter of the tree are displayed on the display screen (7) (figure 4). The measuring line fixing key (16) is pressed to keep the measuring line unretracted.
3. The display of the display screen (7) in the measuring state is: the data of the diameter is displayed on the left side of the first row, and the data of the diameter is displayed on the right side of the first row, wherein the data of the diameter is displayed in an M mode, and the data of the diameter is in a measuring state; the middle of the second row shows the measurement data as the length of the pull wire (fig. 4).
4. When a data clearing key (3) is pressed, the measured data is cleared; pressing a data browsing key (4) to enter a browsing state; the data is saved by pressing a data save and return button (2).
5. After the measurement is finished, the measuring wire is contracted back to the inside under the action of the clockwork spring (14).
6. The USB cable is used for connecting the computer and the USB interface of the invention, and data can be exported to the computer.
Claims (10)
1. The utility model provides a trees chest diameter dipperstick that possesses digital display and data storage function which characterized in that: the method comprises the following steps: the device comprises a measuring line retracting mechanism, an encoder, a circuit board, a display screen and a power supply;
the measuring wire retracting mechanism is used for storing the measuring wire, releasing the measuring wire under the action of pulling force when measuring, and automatically retracting the measuring wire under the action of the spring after the pulling force is reduced or disappears;
the encoder converts the length of the measuring wire which is pulled out into the rotation angle of the encoder, and the length of the measuring wire which is pulled out is calculated through the microprocessor;
the core of the circuit board is a microprocessor and is responsible for processing data transmitted by each module, calculating the chest diameter value of the tree and realizing the function control of modules such as a power supply, a storage module, an encoder, a display module, a communication module and the like;
the display screen displays the measured breast diameter value of the tree;
the power supply provides the amount of power required during the measurement process.
2. The tree breast-height measuring ruler with digital display and data storage functions as claimed in claim 1, wherein: the measuring line retracting mechanism further comprises: the wire outlet, the transmission wheel, the guide wheel, the wire spool, the spring and the measuring wire fixing key; the outlet is a measuring line outlet; the driving wheel fixes the encoder and drives the encoder to rotate through the traction of the measuring line; the guide wheel guides the measuring line to run, the contact area between the measuring line and the driving wheel is increased, the friction force is further increased, the measuring line and the driving wheel are ensured not to slip, and the measuring precision is improved; the wire spool is a component for storing the measuring wire; the spring retracts the pulled measuring wire to the wire spool; the measuring line fixing key clamps the measuring line to fix the measuring line at a certain length.
3. The tree breast-height measuring ruler with digital display and data storage functions as claimed in claim 1 or 2, wherein: also comprises a base; the base is fixed knot structure, and circuit board, encoder, wire reel, guide wheel, clockwork spring all fix through the spacing part on the base.
4. The tree breast-height measuring ruler with digital display and data storage functions as claimed in claim 1, wherein: the USB interface is linked with the USB line and used for exporting data.
5. The tree breast-height measuring ruler with digital display and data storage functions as claimed in claim 1 or 2, wherein: there are four buttons on the operating circuit board, do respectively: power switch button: for turning on or off the power supply; data save and return button: for saving the measured data or returning to the re-measurement; data clear button: for deleting the measured data; data browse key: for browsing historical measurement data.
6. The tree breast-height measuring ruler with digital display and data storage functions as claimed in claim 2, wherein: the wire spool is a component for storing the measuring wire, and the outer cylindrical surface of the wire spool is provided with a groove on which the measuring wire is wound; one end of the measuring wire penetrates through the two small holes in the groove, one end of the measuring wire is fixed on the wire spool, and the other end of the measuring wire is pulled out through the guide wheel; the cylindrical space inside the wire spool is used for installing a clockwork spring, and the pulled measuring wire is retracted into the wire spool under the action of the clockwork spring; four spacing archs on the wire reel lid insert four spacing grooves that correspond on the wire reel, seal clockwork spring inside the wire reel, ensure that clockwork spring can not be in disorder in the measurement process.
7. The tree breast-height measuring ruler with digital display and data storage functions as claimed in claim 2, wherein: the measuring wire comes out of the wire spool, is wound on the driving wheel after passing through the first guide wheel, and passes through the second guide wheel and the third guide wheel, wherein the first guide wheel and the second guide wheel are used for increasing the contact area between the measuring wire and the driving wheel, so that the friction force is increased, the measuring wire and the driving wheel are ensured not to slip, and the measuring precision is improved; the third guide wheel is used for leading the measuring wire coming from the second guide wheel into an outlet better; the guide wheel adopts independent design, rotates around the stand, and instead of replacing the guide wheel with the stand, reduces the friction between measuring line and the guide wheel for the measuring line is difficult by wearing and tearing, makes the measuring line more easily pulled out and withdraws.
8. The tree breast-height measuring ruler with digital display and data storage functions as claimed in claim 2, wherein: grooves are formed in the guide wheel and the transmission wheel, and the measuring line can be limited in the grooves under the action of tension; the measuring wire fixing key clamps the measuring wire to keep the measuring wire in a fixed state.
9. The tree breast-height measuring ruler with digital display and data storage functions as claimed in claim 1 or 2, wherein: the circuit board converts the rotation angle of the encoder shaft into the length of the measuring wire pulled out or retracted, and the breast-height diameter and the circumference of the tree are displayed on the display screen; the circuit board has the functions of processing data and storing the data, and the stored data is downloaded to a computer through the download interface for further processing.
10. The tree breast-height measuring ruler with digital display and data storage functions as claimed in claim 1, wherein: the power supply part is a battery compartment for storing four No. 7 disposable dry batteries.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911239831.3A CN111059986A (en) | 2019-12-06 | 2019-12-06 | Tree breast-height diameter measuring scale with digital display and data storage functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911239831.3A CN111059986A (en) | 2019-12-06 | 2019-12-06 | Tree breast-height diameter measuring scale with digital display and data storage functions |
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| CN111059986A true CN111059986A (en) | 2020-04-24 |
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| CN201911239831.3A Pending CN111059986A (en) | 2019-12-06 | 2019-12-06 | Tree breast-height diameter measuring scale with digital display and data storage functions |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692949A (en) * | 2020-05-27 | 2020-09-22 | 北京安海之弋园林古建工程有限公司 | Electric controller for measuring tree diameter |
| CN111879202A (en) * | 2020-07-15 | 2020-11-03 | 广西财经学院 | Forest size measuring instrument |
| CN111895886A (en) * | 2020-07-16 | 2020-11-06 | 上海辰山植物园 | Portable tree breast height diameter measuring device |
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| CN108007412A (en) * | 2017-11-23 | 2018-05-08 | 北京林业大学 | A kind of self-operated measuring unit and system of the standing tree diameter of a cross-section of a tree trunk 1.3 meters above the ground |
| CN208282740U (en) * | 2018-06-20 | 2018-12-25 | 南京林业大学 | A kind of tree breast-height diameter device |
| CN211234229U (en) * | 2019-12-06 | 2020-08-11 | 中国科学院植物研究所 | Digital display tree breast-height diameter measuring scale |
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2019
- 2019-12-06 CN CN201911239831.3A patent/CN111059986A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103335624A (en) * | 2013-05-20 | 2013-10-02 | 浙江农林大学 | Stumpage diameter at breast height accurate real-time automatic measuring device |
| CN206248001U (en) * | 2016-12-06 | 2017-06-13 | 武汉大学 | A kind of trees diameter measurer and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692949A (en) * | 2020-05-27 | 2020-09-22 | 北京安海之弋园林古建工程有限公司 | Electric controller for measuring tree diameter |
| CN111879202A (en) * | 2020-07-15 | 2020-11-03 | 广西财经学院 | Forest size measuring instrument |
| CN111879202B (en) * | 2020-07-15 | 2022-01-28 | 广西财经学院 | Forest size measuring instrument |
| CN111895886A (en) * | 2020-07-16 | 2020-11-06 | 上海辰山植物园 | Portable tree breast height diameter measuring device |
| CN111895886B (en) * | 2020-07-16 | 2022-11-18 | 上海辰山植物园 | Portable tree breast height diameter measuring device |
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