CN209991960U - Tree diameter at breast height monitoring devices - Google Patents
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Abstract
The utility model discloses a tree breast diameter monitoring device, belonging to the technical field of tree monitoring, which comprises a sensor device and a control module which are interconnected, the sensor device is used for monitoring the breast-height diameter of the tree and transmitting a monitoring signal to the control module, the control module processes the monitoring signal, the sensor device comprises a linear displacement sensor, a movable ruler and a fixed ruler, a spring is connected between the movable ruler and the fixed ruler, the linear displacement sensor comprises a slide sheet and a slide rail, the slide rail of the linear displacement sensor is arranged on the fixed length, linear displacement sensor's gleitbretter is established on the movable ruler, linear displacement sensor's gleitbretter can follow the slide rail and make a round trip to slide, the utility model discloses device structural design is simple ingenious, is applicable to multiple required range scope in the monitoring of trees chest footpath, can provide accurate trees chest footpath monitoring.
Description
Technical Field
The utility model belongs to the technical field of the trees monitoring, specifically relate to a trees diameter at breast height monitoring devices.
Background
In forest resource investigation, the breast diameter is important forest stand measurement data, and is one of the most basic factors reflecting the quality and growth of active trees. The tree breast diameter can take place natural shrinkage and expansion when trunk moisture changes, in addition, when the trunk has fixed carbon dioxide and then arouses that the tree grows, the breast diameter also can change. The tree breast-height diameter is monitored online for a long time, the short-term diameter change, the long-term growth amount and the growth rate change rule of the tree are facilitated to be known, and the method has important significance for forest cultivation, forest accumulation amount investigation and the like.
The most original and direct measuring mode of the tree breast diameter is that the bust ruler is used for manual measurement, the traditional tree breast diameter measurement is mainly realized by the bust diameter bust ruler and the tree breast diameter caliper, the two tools are still manual reading, artificial errors exist, time and labor are consumed, the efficiency is low, and on the other hand, the method can not accurately measure the variation of the breast diameter and is inconvenient for on-line monitoring of the tree breast diameter.
Current trees breast-height diameter monitoring facilities adopts 4 supports of mutually perpendicular to clamp linear displacement sensor to the trunk more, when the breast-height diameter changes, promotes the gleitbretter among the linear displacement sensor and slides on the slide rail, causes resistance to change, thereby obtains the change of trunk breast-height diameter according to the measurement of resistance change volume to carry out long-term on-line monitoring to trees breast-height diameter. But the narrow measuring range is the defect of the bracket type tree breast-height diameter measuring instrument. The trees chest diameter also changes and the change volume is unknown along with the change of objective environmental factor, and when the scope of trees chest diameter was broad, the trees chest diameter changed when great moreover, and the diameter of some big ancient trees name trees can reach 1 meter to 2 meters, because the size of support is fixed, hardly makes the instrument of wide range, is more difficult to be applicable to the monitoring when later stage trees chest diameter changes.
Chinese patent CN104006784A proposes a precision measurement device for the growth amount of tree diameter, which comprises a support, a grid ruler, a sensor clamp, a micron-sized displacement sensor and a signal transmission processing circuit. The diameter of the support is measured by a three-point method, a V-shaped body with an included angle of 90-150 degrees is assembled by two parts, and the measurement of the tree diameter is realized by combining a micro-displacement sensor arranged at the position coincident with the diagonal line of the V-shaped angle. The micron displacement sensor and the magnetic grid ruler carry out remote data transmission with an upper computer through the signal transmission processing circuit. The device monitors data of two parts, wherein the first part is reading of a grid ruler, the second part is reading of a micron-sized displacement sensor, the sum of the two parts is a final measurement result, and finally, a data signal is transmitted through a signal transmission circuit to obtain target data. Although tree diameters can be measured, accuracy cannot be achieved because only a portion of the data can be accurate to the micron level; on the other hand, the device is installed on the tree by utilizing the support and the caliper in a matching mode, the stability of the device during measurement cannot be guaranteed, and therefore inaccuracy of data monitoring is caused.
Another commonly used method for monitoring the breast-height diameter of the tree is to measure the circumference of the trunk by using a pull rope sensor, and then convert the circumference into a tree breast-height diameter variation value. The method comprises the steps that the rope type sensor winds the trunk for one circle or a plurality of circles, when the breast diameter of the tree changes, the rope is stretched, the output electric signal of the sensor changes, and accordingly the breast diameter variation of the tree is obtained, and the system principle is as described in the article (Chenjinxing, Zhao Ping, and the like). The method can change the range of the instrument only by changing the length of the rope, and is more suitable for designing a tree breast-height diameter monitoring instrument with wide range. However, when the designed measuring range is too large, the resolution of the instrument is not high and the change of the tree breast-height diameter cannot be accurately measured when the limited number of bits of the analog-digital converter corresponds to a large-range displacement due to the fixed number of bits of the analog-digital converter in the circuit system. In fact, the tree breast diameter is large but limited in a short time, and the tree breast diameter is small but large in a short time, so that the span design meets a large bottleneck.
Therefore, how to design a tree breast diameter monitoring device or provide a tree breast diameter monitoring method is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
The purpose of the invention is as follows: in order to overcome the not enough that exists among the prior art, the unsuitable trees chest diameter monitoring of various range scope of prior art, trees chest diameter monitoring precision is low, the utility model provides a trees chest diameter monitoring devices is applicable to various required range scopes in the monitoring of trees chest diameter, can provide accurate trees chest diameter monitoring.
The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a trees breast-height diameter monitoring devices, including the sensor device and the control module of interconnection, sensor device is used for monitoring trees breast-height diameter and gives control module with monitor signal transmission, handles monitor signal by control module.
Further, the sensor device comprises a linear displacement sensor, a movable ruler and a fixed ruler, a spring is connected between the movable ruler and the fixed ruler, the linear displacement sensor comprises a slip sheet and a slide rail, the slide rail of the linear displacement sensor is arranged on the fixed ruler, the slip sheet of the linear displacement sensor is arranged on the movable ruler, and the slip sheet of the linear displacement sensor can slide back and forth along the slide rail.
Furthermore, a fixed-size end binding belt is arranged on the fixed size, a movable-size end upper belt is arranged on the movable size, and the fixed-size end binding belt and the movable-size end upper belt can be connected in a matched mode.
Furthermore, a first connecting piece is arranged on the fixed ruler end binding band, a second connecting piece is arranged on the movable ruler end binding band, the positions of the first connecting piece and the second connecting piece are adjustable, and the first connecting piece and the second connecting piece are connected in a matched mode.
Further, the control module comprises a sensor interface circuit, a single chip microcomputer and a communication module, the sensor interface circuit is connected with the sensor device, and the sensor interface circuit and the communication module are connected with the single chip microcomputer.
Further, the control module comprises a sensor interface circuit, a single chip microcomputer and a communication module, the sensor interface circuit is connected with the linear displacement sensor, and the sensor interface circuit and the communication module are connected with the single chip microcomputer.
Furthermore, the control module comprises a power management circuit, the power management circuit comprises a lithium battery and a boost-buck circuit which are sequentially connected, and the boost-buck circuit is respectively connected with the single chip microcomputer, the communication module and the sensor interface circuit.
Further, the control module comprises a temperature and humidity sensor connected with the single chip microcomputer, and the voltage increasing and decreasing circuit is connected with the temperature and humidity sensor.
Further, the power management circuit comprises an MOS tube control circuit, the MOS tube control circuit comprises a group of MOS tubes, and the MOS tube control circuit is respectively connected with the single chip microcomputer, the communication module and the sensor interface circuit.
Has the advantages that: compared with the prior art, the utility model, the advantage that has is:
1. the tree breast-height diameter monitoring device of the utility model is mutually assisted by the sensor device and the control module, the sensor device is used for monitoring tree breast-height diameter change and sending the tree breast-height diameter change data signal to the control module, the control module converts the tree breast-height diameter change data signal from a voltage signal into an electric signal and finally transmits the electric signal to the background for monitoring tree breast-height diameter change in real time by the background, and the tree breast-height diameter change can be monitored with high precision in real time;
2. the utility model discloses a trees breast diameter monitoring devices, realize real-time supervision trees breast diameter change through the linear displacement sensor among the sensor device, linear displacement sensor's slide rail is established on the scale, linear displacement sensor's gleitbretter is established on the movable scale, linear displacement sensor's gleitbretter can slide back and forth along the slide rail, when trees breast diameter changes, linear displacement sensor's gleitbretter slides along the slide rail, thereby drive and produce the displacement between movable scale and the scale, thereby linear displacement sensor monitors the voltage signal of change, the device structural design is simple and ingenious, can realize real-time high accuracy monitoring trees breast diameter change;
3. the utility model discloses a tree breast diameter monitoring device, through design scale end bandage on the scale, design scale end bandage on the movable scale, design connecting piece one on the scale end bandage, design connecting piece two on the movable scale end bandage, connecting piece one and connecting piece two are all adjustable in position, when confirming target tree trunk a week direction, through connecting piece one on the scale end bandage and connecting piece two on the movable scale end bandage mutually supporting connection, realize the effective fixed of tree breast diameter monitoring device on the tree, thereby can be according to the link of movable scale and scale, effectively obtain trunk basis breast diameter data, can guarantee like this that movable scale end bandage and scale end bandage are on same horizontal plane, avoid the measuring error that two bandage directions are different and lead to, further guaranteed that the high accuracy monitors the change of breast diameter of tree; on the other hand, the positions of the first connecting piece and the second connecting piece are adjustable, so that the measuring range can be conveniently adjusted, and the monitoring device can be used for measuring trees with large diameter at breast height and trees with small diameter at breast height;
4. the utility model discloses a trees breast diameter monitoring devices accomplishes the function that the monitoring data uploaded the backstage through the communication module among the control module, and linear displacement sensor monitors the voltage signal that changes at first, and the sensor interface circuit who is connected with linear displacement sensor converts voltage signal into digital signal to send digital signal to the singlechip, and the communication module who is connected with the singlechip accomplishes and uploads this monitoring data signal to the backstage, can realize that real-time high accuracy monitors trees breast diameter and changes;
5. the utility model discloses a trees breast-height diameter monitoring devices, power management circuit among the control module, through the buck-boost circuit with voltage adjustment to 5V and 3.3V, wherein 3.3V voltage is used for supplying power for the singlechip, 5V voltage is used for supplying power for communication module, temperature and humidity sensor, sensor interface circuit, MOS pipe control circuit controls the power supply of each sensor and communication module among the control module, supply power for each module once every 10 minutes, form low-power consumption power management circuit, the consumption of monitoring devices system has been showing to have reduced;
6. the tree breast-height diameter monitoring method of the utility model is installed and fixed on the tree through the tree breast-height diameter monitoring device, the tree breast-height diameter change is effectively monitored, and the tree breast-height diameter change can be monitored with high precision in real time;
7. the tree breast-height diameter monitoring device of the utility model aims at fast growing trees, the breast-height diameter of the fast growing trees can be greatly changed in a short period, for the situation, only a first connecting piece on the bandage with the fixed ruler end and a second connecting piece on the bandage with the movable ruler end need to be reselected, and the basic breast-height diameter parameter of the trees is reset on the control module, so that the monitoring can be continuously carried out, the monitoring instrument does not need to be replaced, the realization method is simple, and the change monitoring of the breast-height diameter of the trees with higher precision can still be ensured;
8. the utility model discloses method trees chest diameter monitoring devices changes the range through selecting different connecting piece positions, realizes the measurement of basic chest diameter, then utilizes linear displacement sensor to realize the high resolution measurement of trees chest diameter variation, even the chest diameter of trees is very big in the reality, its change in the short time is limited, consequently can concentrate on the variation part of trees chest diameter with limited analog to digital converter number of bits, has guaranteed the monitoring of trees chest diameter change of higher accuracy.
Drawings
FIG. 1 is a view showing the structure of the tree breast-height diameter monitoring device of the present invention.
FIG. 2 is a schematic view of the tree breast-height diameter monitoring device of the present invention.
FIG. 3 is a graph showing the results of the experiment in the examples.
Reference numbers in the figures: 1. sizing; 2. moving the ruler; 3. a spring; 4. a linear displacement sensor; 5. a sizing end strap; 6. a movable ruler end binding band; 7. a first connecting piece; 8. a second connecting piece; 9. a control module; 10. a sensor device.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
The first embodiment is as follows:
the tree breast-height diameter monitoring device of this embodiment, refer to fig. 2 and 3, including interconnected sensor device 10 and control module 9, sensor device 10 is used for monitoring tree breast-height diameter and transmits monitoring signal for control module 9, is handled monitoring signal by control module 9 to with handling signal transmission to backstage, supply real-time supervision. Wherein the sensor device 10 comprises a linear displacement sensor 4, a movable ruler 2 and a fixed ruler 1, a spring 3 is connected between the movable ruler 2 and the fixed ruler 1, the linear displacement sensor 4 comprises a slip sheet and a slide rail, the slide rail of the linear displacement sensor 4 is arranged on the fixed ruler 1, the slip sheet of the linear displacement sensor 4 is arranged on the movable ruler 2, the slip sheet of the linear displacement sensor 4 can slide back and forth along the slide rail, the change of the breast diameter of the tree can be monitored in real time through the linear displacement sensor 4 in the sensor device 10, the slide rail of the linear displacement sensor 4 is arranged on the fixed ruler 1, the slip sheet of the linear displacement sensor 4 is arranged on the movable ruler 2, the slip sheet of the linear displacement sensor 4 can slide back and forth along the slide rail, when the breast diameter of the tree changes, the slip sheet of the linear displacement sensor 4 slides along the slide rail, thereby driving the movable ruler 2 and, therefore, the linear displacement sensor 4 monitors the changed voltage signal and sends the tree breast diameter change data signal to the control module, and the control module converts the tree breast diameter change data signal from the voltage signal to an electric signal and finally transmits the electric signal to the background.
Example two:
according to the first embodiment, referring to fig. 2 and fig. 3, the fixed scale 1 is provided with a fixed scale end binding band 5, the movable scale 2 is provided with a movable scale end binding band 6, the fixed scale end binding band 5 and the movable scale end binding band 6 can be mutually matched and connected, the fixed scale end binding band 5 is provided with a first connecting piece 7, the movable scale end binding band 6 is provided with a second connecting piece 8, both the first connecting piece 7 and the second connecting piece 8 can be adjusted in position, the first connecting piece 7 and the second connecting piece 8 are mutually matched and connected, when the trunk direction of a target tree is determined, the first connecting piece on the fixed scale end binding band and the second connecting piece on the movable scale end binding band are mutually matched and connected, so that the effective fixation of the tree breast diameter monitoring device on the tree is realized, the trunk basic breast diameter data can be effectively obtained according to the connecting ends of the movable scale binding band and the fixed scale binding band, and the movable scale end can be ensured on the same horizontal plane, measurement errors caused by different directions of the two binding bands are avoided, and the tree breast-height diameter change is further guaranteed to be monitored with high precision; on the other hand, the positions of the first connecting piece and the second connecting piece are adjustable, so that the measuring range can be conveniently adjusted, and the monitoring device can be used for measuring trees with large diameter at breast height and trees with small diameter at breast height. In this embodiment, the first connecting member 7 provided on the tape 5 at the fixed ruler end can be screw hole structure, the second connecting member 8 provided on the tape 6 at the movable ruler end can be screw or stud or other structure, by designing a group of equidistant screw holes on the tape 5 at the fixed ruler end, and designing a group of equidistant screws or equidistant studs corresponding to the equidistant screw holes on the tape 6 at the movable ruler end, wherein the diameter of the equidistant screws or equidistant studs is not larger than the inner diameter of the equidistant screw holes, the number of the equidistant screw holes is far larger than the number of the equidistant screws or equidistant studs, the mutual matching connection between the equidistant screws or equidistant studs and the equidistant screw holes can be realized, when in use, the tape 6 at the movable ruler end and the tape 5 at the fixed ruler end are wound around the trunk for a circle, according to the perimeter of the trunk, the equidistant screw holes are selected for the equidistant screws or equidistant studs, and the equidistant screws, the movable ruler binding band can be fixed by a nut, namely, the selection of a measuring range is realized, and the movable ruler binding band 6 and the fixed ruler binding band 5 can be ensured to be on the same horizontal plane, so that the measuring errors caused by the different directions of the two binding bands are avoided.
Example three:
in the tree breast-height diameter monitoring device of the present embodiment, referring to fig. 2 based on the second embodiment, the control module 9 includes a sensor interface circuit, a single chip microcomputer and a communication module. In this embodiment, the communication module is a GPRS communication module, and the single chip microcomputer is an MSP430F149 single chip microcomputer. The sensor interface circuit and the communication module are both connected with the single chip microcomputer, the sensor interface circuit is connected with the sensor device 10, the sensor interface circuit is connected with the linear displacement sensor 4 in the sensor device 10 through a multi-core cable, and after the linear displacement sensor 4 monitors a voltage signal, the sensor interface circuit converts the voltage signal output by the linear displacement sensor into a digital signal and transmits the digital signal to the MSP430F149 single chip microcomputer; the control module 9 further comprises a temperature and humidity sensor connected with the single chip microcomputer, the temperature and humidity sensor is connected with the MSP430F149 single chip microcomputer through an SPI (serial peripheral interface), and the temperature and humidity sensor is used for measuring real-time environment temperature and humidity and providing basic data for researching the rules between tree growth and environment change and the like; the GPRS communication module is connected with the MSP430F149 single chip microcomputer through a UART circuit, the GPRS communication module sends a processing signal in the single chip microcomputer to a background, and uploads a monitoring data signal to the background, so that the tree breast-height diameter change can be monitored in real time with high precision, and an instruction sent by a remote control system can be received, so that system parameter setting, such as tree basic breast-height diameter and the like, is realized; the GPRS communication module also needs to complete the function of monitoring data uploading.
Example four:
according to the tree breast diameter monitoring device of the embodiment, based on the third embodiment, referring to fig. 2, the control module 9 includes a power management circuit, the power management circuit includes a lithium battery and a buck-boost circuit, which are connected in sequence, and the buck-boost circuit is connected with the single chip microcomputer, the communication module and the sensor interface circuit respectively; the control module 9 is powered by a 3.7V lithium battery, and the voltage is adjusted to 5V and 3.3V through a voltage increasing and decreasing circuit, wherein the 3.3V voltage is used for supplying power to the MSP430F149 single chip microcomputer, and the 5V voltage is used for supplying power to the GPRS communication module, the temperature and humidity sensor and the sensor interface circuit. The power management circuit comprises an MOS (metal oxide semiconductor) tube control circuit, the MOS tube control circuit comprises a group of MOS tubes, the MOS tube control circuit is respectively connected with the single chip microcomputer, the communication module, the sensor interface circuit and the temperature and humidity sensor, the power supply of each sensor and the GPRS communication module is controlled by the MOS tube in the system, the power supply of each module is supplied once every 10 minutes, the power consumption of the system is obviously reduced, the low-power-consumption power management circuit is realized, and in the embodiment, the MOS tube control circuit comprises 3 MOS tubes.
Example five:
the tree breast height diameter monitoring device of the embodiment is based on the fourth embodiment, referring to fig. 2 and 3, and the method comprises the following steps:
determining a target tree, and selecting a proper position to install the sensor device and the control module on the tree;
determining the direction of the trunk circumference by taking the position of the sensor device as an origin, setting the positions of a fixed ruler end binding band and a movable ruler end binding band in the sensor device in the direction of the trunk circumference, and mutually matching and connecting the fixed ruler end binding band and the movable ruler end binding band through a first connecting piece on the fixed ruler end binding band and a second connecting piece on the movable ruler end binding band;
obtaining tree base breast diameter data according to the position of a connecting end between a fixed ruler end binding band and a movable ruler end binding band in the trunk circumferential direction, and setting the tree base breast diameter data as initial tree base breast diameter data in a control module;
when the breast diameter of the tree changes, the fixed ruler and the movable ruler in the sensor device displace mutually, the linear displacement sensor in the sensor device monitors the mutual displacement between the fixed ruler and the movable ruler to obtain a tree breast diameter change data signal, the linear displacement sensor transmits the tree breast diameter change data signal to the control module, the single chip microcomputer of the control module processes the signal, the tree breast diameter monitoring device is installed and fixed on the tree, the tree breast diameter change is effectively monitored, and the tree breast diameter change can be monitored in real time with high precision.
Example six:
the tree breast height diameter monitoring device of the embodiment is based on the fifth embodiment, referring to fig. 2 and 3, when the tree breast height diameter changes, the fixed scale and the movable scale in the sensor device are displaced mutually, the linear displacement sensor in the sensor device monitors the mutual displacement between the fixed scale and the movable scale to obtain a tree breast diameter change data signal, the linear displacement sensor transmits the tree breast diameter change data signal to the control module, a singlechip of the control module processes the signal, when the breast diameter of the tree is greatly changed relative to the original basic breast diameter of the tree, the position of the sensor device is taken as the original point, the direction of the trunk is determined again, the positions of the fixed ruler end binding belt and the movable ruler end binding belt in the sensor device are respectively set again in the direction of the trunk circumference, the first connecting piece on the fixed-length end binding band and the second connecting piece on the movable-length end binding band are matched and connected with each other again; the method comprises the steps that the position of a connecting end between a fixed ruler end binding belt and a movable ruler end binding belt in the trunk circumferential direction is re-used, tree basic breast diameter data obtained through tree basic breast diameter data are re-arranged in a control module, the breast diameter of a fast growing tree can be greatly changed in a short period, for the situation, only a first connecting piece on the fixed ruler end binding belt and a second connecting piece on the movable ruler end binding belt need to be re-selected, tree basic breast diameter parameters can be re-arranged on the control module to be monitored continuously, the range can be changed through selecting different connecting piece positions, measurement of the basic breast diameter is achieved, and then high-resolution measurement of tree breast diameter variation is achieved through a linear displacement sensor.
Example seven:
the tree breast diameter monitoring device of the embodiment is based on the sixth embodiment, referring to fig. 2 and fig. 3, in the tree breast diameter monitoring, a fixed size end binding band 5 is arranged on a fixed size 1, a movable size end binding band 6 is arranged on a movable size 2, the fixed size end binding band 5 and the movable size end binding band 6 can be mutually matched and connected, a first connecting piece 7 is arranged on the fixed size end binding band 5, a second connecting piece 8 is arranged on the movable size end binding band 6, the positions of the first connecting piece 7 and the second connecting piece 8 can be adjusted, the first connecting piece 7 and the second connecting piece 8 are mutually matched and connected, when the trunk direction of a target tree is determined, the first connecting piece on the fixed size end binding band and the second connecting piece on the movable size end binding band are mutually matched and connected, so that the tree breast diameter monitoring device can be effectively fixed on the tree, and basic breast diameter data can be effectively obtained according to the connecting ends, therefore, the movable ruler end binding belt and the fixed ruler end binding belt can be ensured to be on the same horizontal plane, the measurement error caused by different directions of the two binding belts is avoided, and the change of the breast diameter of the tree can be further monitored with high precision; on the other hand, the positions of the first connecting piece and the second connecting piece are adjustable, so that the measuring range can be conveniently adjusted, and the monitoring device can be used for measuring trees with large diameter at breast height and trees with small diameter at breast height. In this embodiment, the first connecting member 7 provided on the tape 5 at the fixed ruler end can be screw hole structure, the second connecting member 8 provided on the tape 6 at the movable ruler end can be screw or stud or other structure, by designing a group of equidistant screw holes on the tape 5 at the fixed ruler end, and designing a group of equidistant screws or equidistant studs corresponding to the equidistant screw holes on the tape 6 at the movable ruler end, wherein the diameter of the equidistant screws or equidistant studs is not larger than the inner diameter of the equidistant screw holes, the number of the equidistant screw holes is far larger than the number of the equidistant screws or equidistant studs, the mutual matching connection between the equidistant screws or equidistant studs and the equidistant screw holes can be realized, when in use, the tape 6 at the movable ruler end and the tape 5 at the fixed ruler end are wound around the trunk for a circle, according to the perimeter of the trunk, the equidistant screw holes are selected for the equidistant screws or equidistant studs, and the equidistant screws, the movable ruler binding band can be fixed by a nut, namely, the selection of a measuring range is realized, and the movable ruler binding band 6 and the fixed ruler binding band 5 can be ensured to be on the same horizontal plane, so that the measuring errors caused by the different directions of the two binding bands are avoided. In the embodiment, the number of the equidistant screws or the equidistant studs is 3, firstly, the binding band is wound around the trunk for a circle, a proper screw hole is selected according to the circumference of the trunk, the studs or the screws penetrate through the screw hole, and then the studs or the screws are fixed by nuts; according to the sizes of the fixed-scale end binding belt and the movable-scale end binding belt and the positions of screw holes at the connecting part, the breast diameter of the tree foundation can be obtained, and the breast diameter of the tree foundation is arranged in the control module 9; the MSP430F149 single chip microcomputer in the control module 9 completes the monitoring of the tree breast-height diameter change and the data uploading every 10 minutes. The remote server receives the data sent by the communication module in the control module 9.
Example eight:
the tree breast diameter monitoring device of the embodiment is based on the seventh embodiment, referring to fig. 2 and fig. 3, a tree growth tree breast diameter change monitoring device is designed, the range of the linear displacement sensor is 75mm, the distance between screw holes on the fixed-size end binding band 5 is 25mm, the diameter of the screw holes is phi 5mm, 3 equidistant screws or studs or screws are welded on the movable-size end binding band 6, the distance between the equidistant screws or studs or screws is 25mm, the designed monitoring device is installed on a pine tree with the breast diameter of about 100 mm, measurement is performed every 10 minutes for 24 hours, and the tree breast diameter data is obtained and shown in fig. 3. As can be seen in fig. 3, the diameter at breast height of the tree is influenced by environmental factors (temperature, humidity, soil moisture content, etc.) and exhibits large fluctuations within 24 hours. The tree breast-height diameter is monitored, and the method has important significance for researching the tree growth speed, the tree cultivation method and the like, the tree breast-height diameter value can be accurate to 3 decimal points, and the measurement result is more accurate.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (9)
1. The tree breast diameter monitoring device is characterized by comprising a sensor device (10) and a control module (9) which are interconnected, wherein the sensor device (10) is used for monitoring the breast diameter of a tree and transmitting a monitoring signal to the control module (9), and the monitoring signal is processed by the control module (9).
2. The tree breast diameter monitoring device according to claim 1, wherein the sensor device (10) comprises a linear displacement sensor (4), a movable ruler (2) and a fixed ruler (1), a spring (3) is connected between the movable ruler (2) and the fixed ruler (1), the linear displacement sensor (4) comprises a sliding piece and a sliding rail, the sliding rail of the linear displacement sensor (4) is arranged on the fixed ruler (1), the sliding piece of the linear displacement sensor (4) is arranged on the movable ruler (2), and the sliding piece of the linear displacement sensor (4) can slide back and forth along the sliding rail.
3. The tree breast diameter monitoring device according to claim 2, wherein a fixed-size end binding belt (5) is arranged on the fixed size (1), a movable-size end upper belt (6) is arranged on the movable size (2), and the fixed-size end binding belt (5) and the movable-size end upper belt (6) can be connected in a matched mode.
4. The tree breast diameter monitoring device as claimed in claim 3, wherein the tape (5) at the fixed ruler end is provided with a first connecting piece (7), the tape (6) at the movable ruler end is provided with a second connecting piece (8), the first connecting piece (7) and the second connecting piece (8) are both adjustable in position, and the first connecting piece (7) and the second connecting piece (8) are mutually matched and connected.
5. The tree breast diameter monitoring device according to claim 1, wherein the control module (9) comprises a sensor interface circuit, a single chip microcomputer and a communication module, the sensor interface circuit is connected with the sensor device (10), and the sensor interface circuit and the communication module are both connected with the single chip microcomputer.
6. The tree breast diameter monitoring device according to claim 4, wherein the control module (9) comprises a sensor interface circuit, a single chip microcomputer and a communication module, the sensor interface circuit is connected with the linear displacement sensor (4), and the sensor interface circuit and the communication module are both connected with the single chip microcomputer.
7. The tree breast diameter monitoring device as claimed in claim 5 or 6, wherein the control module (9) comprises a power management circuit, the power management circuit comprises a lithium battery and a buck-boost circuit which are connected in sequence, and the buck-boost circuit is respectively connected with the single chip microcomputer, the communication module and the sensor interface circuit.
8. The tree breast diameter monitoring device according to claim 7, wherein the control module (9) comprises a temperature and humidity sensor connected with a single chip microcomputer, and the voltage increasing and decreasing circuit is connected with the temperature and humidity sensor.
9. The tree breast diameter monitoring device of claim 7, wherein the power management circuit comprises an MOS tube control circuit, the MOS tube control circuit comprises a set of MOS tubes, and the MOS tube control circuit is respectively connected with the single chip microcomputer, the communication module and the sensor interface circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822022746.9U CN209991960U (en) | 2018-12-04 | 2018-12-04 | Tree diameter at breast height monitoring devices |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822022746.9U CN209991960U (en) | 2018-12-04 | 2018-12-04 | Tree diameter at breast height monitoring devices |
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| CN209991960U true CN209991960U (en) | 2020-01-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443281A (en) * | 2018-12-04 | 2019-03-08 | 浙江农林大学 | A kind of tree breast-height diameter monitoring method and device |
| CN113670247A (en) * | 2021-08-17 | 2021-11-19 | 中国科学院生态环境研究中心 | Plant radial growth rhythm monitor |
-
2018
- 2018-12-04 CN CN201822022746.9U patent/CN209991960U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443281A (en) * | 2018-12-04 | 2019-03-08 | 浙江农林大学 | A kind of tree breast-height diameter monitoring method and device |
| CN113670247A (en) * | 2021-08-17 | 2021-11-19 | 中国科学院生态环境研究中心 | Plant radial growth rhythm monitor |
| CN113670247B (en) * | 2021-08-17 | 2022-02-11 | 中国科学院生态环境研究中心 | Plant radial growth rhythm monitor |
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