CN210071280U - Wind tree dynamic behavior detection device - Google Patents

Wind tree dynamic behavior detection device Download PDF

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CN210071280U
CN210071280U CN201920891564.7U CN201920891564U CN210071280U CN 210071280 U CN210071280 U CN 210071280U CN 201920891564 U CN201920891564 U CN 201920891564U CN 210071280 U CN210071280 U CN 210071280U
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resistor
circuit
capacitor
tlv2333
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云挺
薛联凤
潘家辉
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Hangzhou Wanlin digital chain Technology Service Co., Ltd
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Nanjing Forestry University
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Abstract

The utility model discloses a trees dynamics action detection device in wind, including MUP6050 acceleration sensor, pressure sensor, signal conditioning circuit, ADC sampling circuit, singlechip circuit and USB commentaries on classics serial circuits, MUP6050 acceleration sensor is connected with singlechip circuit, pressure sensor is connected with signal conditioning circuit, signal conditioning circuit passes through ADC sampling circuit and singlechip circuit connection, the circuit of singlechip and USB commentaries on classics serial circuits are connected, USB commentaries on classics serial circuits is used for passing through the USB interface and is connected with the host computer; the MUP6050 acceleration sensor and the pressure sensor are fixed on an object to be measured. The utility model discloses can measure in order to obtain audio-visual data through acceleration sensor and pressure sensor to can go deep into the action dynamics of understanding trees under the effect of wind-force load.

Description

Wind tree dynamic behavior detection device
Technical Field
The utility model relates to a trees action dynamics detection area, concretely relates to trees dynamics action detection device in wind.
Background
During the production process of trees, air and sunlight are indispensable, but the influence of wind power on the trees is also great.
The method is particularly important for detecting the dynamic behavior of the tree, particularly detecting the acceleration change condition of the tree under the action of wind power and the pressure condition of the tree caused by the wind power, so as to quantitatively know the influence of the wind power on the tree.
Disclosure of Invention
The utility model aims to solve the technical problem that not enough to above-mentioned prior art provides a trees dynamics action detection device in wind, and this trees dynamics action detection device in wind can measure in order to obtain audio-visual data through acceleration sensor and pressure sensor to can go deep into the action dynamics of understanding trees under the effect of wind-force load.
In order to realize the technical purpose, the utility model discloses the technical scheme who takes does:
a dynamic behavior detection device for trees in wind comprises an MUP6050 acceleration sensor, a pressure sensor, a signal conditioning circuit, an ADC (analog-to-digital converter) sampling circuit, a single chip microcomputer circuit and a USB (universal serial bus) to serial port circuit, wherein the MUP6050 acceleration sensor is connected with the single chip microcomputer circuit, the pressure sensor is connected with the signal conditioning circuit, the signal conditioning circuit is connected with the single chip microcomputer circuit through the ADC sampling circuit, the circuit of the single chip microcomputer is connected with the USB to serial port circuit, and the USB to serial port circuit is used for being connected with an upper computer through a USB interface; the MUP6050 acceleration sensor and the pressure sensor are fixed on an object to be measured.
As the utility model discloses further modified technical scheme, singlechip circuit adopts STC89C52 singlechip, and the pin 24 of MUP6050 chip of MUP6050 acceleration sensor is connected with the pin 12 of STC89C52 singlechip, the pin 23 of MUP6050 chip is connected with the pin 13 of STC89C52 singlechip.
As the utility model discloses further modified technical scheme, pressure sensor adopts resistance-type film pressure sensor.
As a further improved technical solution of the present invention, the signal conditioning circuit includes resistors R1 to R5, resistors R7 to R10, capacitor C2, capacitor C4, capacitor C5, clamping diode D1, clamping diode D2 and operational amplifier TLV2333, the output end of the pressure sensor is connected to one ends of resistors R3 and R7, respectively, the other end of the resistor R3 is connected to the anode of clamping diode D1 and the cathode of clamping diode D2, the cathode of the clamping diode D2 is connected to one end of resistor R2 and pin 6 of operational amplifier TLV2333, the other end of the resistor R2 is connected to pin 7 of operational amplifier TLV2333 and one end of resistor R4, the one end of the capacitor C4, the cathode of clamping diode D1 and pin 8 of operational amplifier TLV2333 are all connected to the power supply, the other end of the resistor R7, the other end of the capacitor C4 and the anode of clamping diode D2 are all connected to the ground, the pin 5 of the operational amplifier TLV2333 is connected with a ground wire through a resistor R8, the pin 3 of the operational amplifier TLV2333 is connected with the ground wire through a resistor R9, the other end of the resistor R4 is respectively connected with one end of a pin 2 of the operational amplifier TLV2333, a resistor R1 and one end of a capacitor C2, the other ends of the resistor R1 and the capacitor C2 are simultaneously and respectively connected with one end of a pin 1 of the operational amplifier TLV2333, a resistor R10 and one end of a resistor R5, the other ends of the pin 4 and the resistor R10 of the operational amplifier TLV2333 are both connected with the ground wire, the other end of the resistor R5 is respectively connected with one end of the capacitor C5 and the ADC sampling circuit, and the other end.
As the utility model discloses further modified technical scheme, ADC sampling circuit adopts chip ADC0804, chip ADC 0804's pin 6 is connected with resistance R5 in the signal conditioning circuit, chip ADC 0804's pin 20 connects the power VCC, chip ADC 0804's pin 19 loops through resistance R6 and electric capacity C3 and connects the ground wire, chip ADC 0804's pin 4 passes through electric capacity C3 and connects the ground wire, chip ADC 0804's pin 7, pin 8 and pin 10 all connect the ground wire, chip ADC 0804's pin 1, pin 2, pin 3, pin 5, pin 11 to pin 18 all are connected with STC89C52 singlechip.
As the utility model discloses further modified technical scheme, USB changes serial ports circuit and adopts chip CH340, and pin T2IN of chip CH340 is connected with the pin 11 of STC89C52 singlechip, and pin R2OUT and the pin 10 of STC89C52 singlechip of chip CH340 are connected, pin T2OUT and the USB interface connection of chip CH340, pin R2IN and the USB interface connection of chip CH 340.
The utility model has the advantages that: the utility model discloses a MUP6050 acceleration sensor measures the acceleration of trees in the wind, measures the pressure that trees received in the wind through pressure sensor, has accomplished the measurement to acceleration and pressure, can obtain accurate audio-visual data, through the data to these collections, can know the action dynamics of trees under the wind-force influence deeply. So as to quantitatively know the influence of wind on the trees. The whole device has accurate measurement, convenient installation, simple circuit and low cost.
Drawings
Fig. 1 is a schematic block diagram of the circuit of the present invention.
Fig. 2 is a schematic circuit diagram of the MUP6050 acceleration sensor of the present invention.
Fig. 3 is the schematic diagram of the circuit principle of the single chip microcomputer of the present invention.
Fig. 4 is a schematic diagram of the signal conditioning circuit and ADC sampling circuit of the present invention.
Fig. 5 is the schematic diagram of the USB-to-serial port circuit principle of the present invention.
Detailed Description
The following further description of embodiments of the present invention is made with reference to fig. 1 to 5:
referring to fig. 1, the device for detecting dynamic behavior of trees in wind comprises a MUP6050 acceleration sensor, a pressure sensor, a signal conditioning circuit, an ADC (analog to digital converter) sampling circuit, a single chip microcomputer circuit and a USB (universal serial bus) to serial port circuit, wherein the MUP6050 acceleration sensor is connected with the single chip microcomputer circuit, the pressure sensor is connected with the signal conditioning circuit, the signal conditioning circuit is connected with the single chip microcomputer circuit through the ADC sampling circuit, the single chip microcomputer circuit is connected with the USB to serial port circuit, and the USB to serial port circuit is used for being connected with an upper computer through a USB interface.
Wherein, the MUP6050 acceleration sensor and the pressure sensor are both used for being fixed on an object to be measured. When the tree is checked for behavior by using the present embodiment, the MUP6050 acceleration sensor and the pressure sensor can be respectively fixed to the tip end (or the upper part of the trunk) of the tree to be checked. When the tree is blown by wind, the acceleration sensor and the pressure sensor return data to the single chip microcomputer circuit, the data are processed by the single chip microcomputer circuit and then transmitted to an upper computer (such as a computer) to be displayed, and therefore the required wind power parameters are obtained. Wherein the acceleration sensor MPU6050 chip adopts I2C mode to work. The single chip microcomputer circuit reads out data from the acceleration sensor according to the I2C protocol and processes the data.
Referring to fig. 3, the single chip microcomputer circuit adopts an STC89C52 single chip microcomputer (U4). And the external crystal oscillator circuit and the reset circuit are connected. The crystal oscillator circuit comprises a 12M crystal oscillator X1, a capacitor C13 and a capacitor C14. The reset circuit includes button S1, resistor R11, and capacitor C11. Pins P0.0 to P0.7 of the STC89C52 singlechip are connected with a power supply VCC through a pull-up resistor R13. The P1.0 pin of the STC89C52 singlechip is connected with a power supply VCC through a light emitting diode D3 and a resistor R12 in sequence.
Referring to fig. 2, the MUP6050 acceleration sensor (M1) of the present embodiment operates in I2C mode; the SDA pin (pin 24) of the MUP6050 chip is connected with the P3.2 pin (pin 12) of the STC89C52 singlechip, and the SCL pin (pin 23) of the MUP6050 chip is connected with the P3.3 pin (pin 13) of the STC89C52 singlechip. And the STC89C52 single chip microcomputer reads data from the MUP6050 acceleration sensor according to an I2C protocol and processes the data.
The pressure sensor of the present embodiment employs an IMS resistive membrane pressure sensor. The pressure sensor is connected with an ADC0804 of the ADC sampling circuit through the signal conditioning circuit. ADC0804 is connected with P0 pin, P3.4 pin, P3.5 pin, P3.6 pin and P3.7 pin of STC89C52 singlechip respectively.
Specifically, referring to fig. 4, the signal conditioning circuit includes resistors R1 to R5, resistors R7 to R10, a capacitor C2, a capacitor C4, a capacitor C5, a clamping diode D1, a clamping diode D2, and an operational amplifier TLV2333(U2A, U2B), the output terminals of the pressure sensor are respectively connected to one ends of a resistor R3 and a resistor R7, the other end of the resistor R3 is respectively connected to the anode of the clamping diode D1 and the cathode of the clamping diode D2, the cathode of the clamping diode D2 is respectively connected to one end of a resistor R2 and a pin 6 of the operational amplifier TLV2333, the other end of the resistor R23328 is respectively connected to a pin 7 of the operational amplifier TLV 3 and a pin 7 of the resistor R4, one end of the capacitor C4, the cathode of the clamping diode D1, and a pin 8 of the operational amplifier 2333 are respectively connected to the power supply, the other end of the resistor R1, the VCC, the other end of the capacitor C1 and the anode of the clamping diode D1 are respectively connected to the ground pin 2335, the pin 3 of the operational amplifier TLV2333 is connected with a ground wire through a resistor R9, the other end of the resistor R4 is connected with one end of a pin 2 of the operational amplifier TLV2333, a resistor R1 and a capacitor C2 respectively, the other ends of the resistor R1 and the capacitor C2 are connected with one end of a pin 1 of the operational amplifier 233TLV 3, a resistor R10 and a resistor R5 respectively, the other ends of a pin 4 of the operational amplifier TLV2333 and the resistor R10 are connected with the ground wire, the other end of the resistor R5 is connected with one end of the capacitor C5 and the ADC sampling circuit respectively, and the other end of the capacitor C5 is connected with the ground wire.
A resistor R7 in the signal conditioning circuit is a sampling resistor, a resistor R3 and a capacitor C4 have a low-pass filtering effect, D1 and D2 are clamping diodes, R8 and R9 are balance resistors, C2 is used for phase compensation, R2 and R3 are used for first-stage amplification, and R1 and R4 are used for second-stage amplification.
Referring to fig. 4, an ADC sampling circuit adopts a chip ADC0804(U1), a pin 6 of the chip ADC0804 is connected with a resistor R5 in a signal conditioning circuit, a pin 20 of the chip ADC0804 is connected with a power VCC, a pin 19 of the chip ADC0804 is connected with a ground line sequentially through a resistor R6 and a capacitor C3, a pin 4 of the chip ADC0804 is connected with the ground line through a capacitor C3, a pin 7, a pin 8 and a pin 10 of the chip ADC0804 are all connected with the ground line, and a pin 1, a pin 2, a pin 3, a pin 5, a pin 11 to a pin 18 of the chip ADC0804 are all connected with an STC89C52 single chip microcomputer.
The electric signal of the pressure sensor of the embodiment is sent to a pin VIN of an ADC0804 chip through a signal conditioning circuit formed by TLV2333, a data pin of the ADC0804 is connected with a pin P0 of an STC89C52 singlechip, and the data is sent to the STC89C52 singlechip.
Referring to fig. 5, the USB serial-to-serial port circuit of this embodiment adopts a chip CH340(U3), a pin T2IN (pin 10) of the chip CH340 is connected to a pin P3.1 (pin 11) of an STC89C52 single chip microcomputer, a pin R2OUT (pin 9) of the chip CH340 is connected to a pin P3.0 (pin 10) of an STC89C52 single chip microcomputer, a pin T2OUT (pin 7) of the chip CH340 is connected to a USB interface (U5), and a pin R2IN (pin 8) of the chip CH340 is connected to the USB interface.
The USB interface of this embodiment is used for being connected with the host computer, and wherein the VCC end of USB interface can connect the host computer, for power supplies such as MUP6050 acceleration sensor, signal conditioning circuit, ADC sampling circuit, single chip circuit and USB commentaries on classics serial circuits.
In the embodiment, the acceleration sensor is fixed along the treetop direction, the treetop direction is taken as the X axis, and the upward direction perpendicular to the sensor is taken as the Z axis. When the branches swing under the action of wind, the acceleration sensor will return to X, Y the acceleration value a of the axial directionxayAnd the acceleration sensor follows an I2C protocol, and the STC89C52 singlechip reads data of the acceleration sensor in real time. Meanwhile, the pressure sensor detects a wind pressure signal V, the wind pressure signal V is sent to an ADC0804 chip through a signal conditioning circuit, and the ADC0804 sends data to an STC89C52 singlechip.
The STC89C52 singlechip makes the data non-directional to obtain:
Figure BDA0002094204380000051
the data is filtered because of noise interference.
Accumulate S values 20 times and then average and so on for the final filtered data.
Figure BDA0002094204380000052
Setting a threshold Sth
When S' is not less than SthWhen the tree tip swings, the tree tip swings once.
Setting valve time T to 1S
Calculating the number of wobbles in 1S then N can result in the frequency:
Figure BDA0002094204380000053
meanwhile, the pressure sensor can obtain an electric signal V of the wind pressure, and the actual wind pressure is obtained according to a piezoelectric curve provided by a manufacturer.
And finally, sending the obtained data to an upper computer for display in an STC89C52 singlechip through a USB-to-serial port circuit.
The embodiment can measure the acceleration of trees in the wind through the MUP6050 acceleration sensor, measure the pressure of trees in the wind through the pressure sensor, finish the measurement of acceleration and pressure, can obtain accurate audio-visual data, and can deeply understand the behavior dynamics of trees under the influence of wind power through the data to these collections. So as to quantitatively know the influence of wind on the trees. The whole device has accurate measurement, convenient installation, simple circuit and low cost.
The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that can be easily conceived by those skilled in the art made by the present technology all fall into the protection scope of the present invention.

Claims (6)

1. The device for detecting the dynamic behavior of trees in wind is characterized by comprising an MUP6050 acceleration sensor, a pressure sensor, a signal conditioning circuit, an ADC (analog to digital converter) sampling circuit, a single chip microcomputer circuit and a USB (universal serial bus) to serial port circuit, wherein the MUP6050 acceleration sensor is connected with the single chip microcomputer circuit, the pressure sensor is connected with the signal conditioning circuit, the signal conditioning circuit is connected with the single chip microcomputer circuit through the ADC sampling circuit, the single chip microcomputer circuit is connected with the USB to serial port circuit, and the USB to serial port circuit is used for being connected with an upper computer through a USB interface; the MUP6050 acceleration sensor and the pressure sensor are fixed on an object to be measured.
2. The apparatus according to claim 1, wherein the single chip microcomputer circuit is an STC89C52 single chip microcomputer, pin 24 of a MUP6050 chip of the MUP6050 acceleration sensor is connected to pin 12 of an STC89C52 single chip microcomputer, and pin 23 of the MUP6050 chip is connected to pin 13 of the STC89C52 single chip microcomputer.
3. The apparatus according to claim 2, wherein the pressure sensor is a resistive film pressure sensor.
4. The detection apparatus for dynamic behavior of trees in wind as claimed in claim 2, wherein said signal conditioning circuit comprises resistors R1 to R5, R7 to R10, a capacitor C2, a capacitor C4, a capacitor C5, a clamping diode D1, a clamping diode D2 and an operational amplifier TLV2333, the output terminal of said pressure sensor is connected to one end of resistor R3 and resistor R7, respectively, the other end of said resistor R3 is connected to the positive terminal of clamping diode D1 and the negative terminal of clamping diode D2, the negative terminal of clamping diode D2 is connected to one end of resistor R2 and pin 6 of operational amplifier TLV2333, respectively, the other end of said resistor R2 is connected to pin 7 of operational amplifier TLV2333 and one end of resistor R4, the one end of said capacitor C4, the negative terminal of clamping diode D1 and pin 8 of operational amplifier TLV2333 are connected to a power supply, the other end of resistor R6342 VCC, the other end of capacitor C5928 and the positive terminal of clamping diode D2 are connected to ground, the pin 5 of the operational amplifier TLV2333 is connected with a ground wire through a resistor R8, the pin 3 of the operational amplifier TLV2333 is connected with the ground wire through a resistor R9, the other end of the resistor R4 is respectively connected with one end of a pin 2 of the operational amplifier TLV2333, a resistor R1 and one end of a capacitor C2, the other ends of the resistor R1 and the capacitor C2 are simultaneously and respectively connected with one end of a pin 1 of the operational amplifier TLV2333, a resistor R10 and one end of a resistor R5, the other ends of the pin 4 and the resistor R10 of the operational amplifier TLV2333 are both connected with the ground wire, the other end of the resistor R5 is respectively connected with one end of the capacitor C5 and the ADC sampling circuit, and the other end.
5. The device for detecting dynamic behavior of trees in wind according to claim 4, wherein the ADC sampling circuit is a chip ADC0804, a pin 6 of the chip ADC0804 is connected with a resistor R5 in the signal conditioning circuit, a pin 20 of the chip ADC0804 is connected with a power supply VCC, a pin 19 of the chip ADC0804 is sequentially connected with a ground wire through a resistor R6 and a capacitor C3, a pin 4 of the chip ADC0804 is connected with the ground wire through a capacitor C3, a pin 7, a pin 8 and a pin 10 of the chip ADC0804 are all connected with the ground wire, and a pin 1, a pin 2, a pin 3, a pin 5, a pin 11 to a pin 18 of the chip ADC0804 are all connected with an STC89C52 single chip microcomputer.
6. The device according to claim 4, wherein the USB-to-serial port circuit employs a chip CH340, a pin T2IN of the chip CH340 is connected to a pin 11 of an STC89C52 single chip microcomputer, a pin R2OUT of the chip CH340 is connected to a pin 10 of the STC89C52 single chip microcomputer, a pin T2OUT of the chip CH340 is connected to a USB interface, and a pin R2IN of the chip CH340 is connected to the USB interface.
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Effective date of registration: 20200806

Address after: Room 614, bonded building, west side of bonded Road, Hangzhou Airport Economic Zone, Jingjiang street, Xiaoshan District, Hangzhou City, Zhejiang Province

Patentee after: Hangzhou Wanlin digital chain Technology Service Co., Ltd

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Patentee before: NANJING FORESTRY University

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Address after: 310051 room 1802-1, building 1, Zhongying international business building, No. 998, Binhe Road, Changhe street, Binjiang District, Hangzhou City, Zhejiang Province

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Address before: Room 614, bonded building, west of bonded Road, Hangzhou Airport Economic Zone, Jingjiang street, Xiaoshan District, Hangzhou City, Zhejiang Province

Patentee before: Hangzhou Wanlin digital chain Technology Service Co.,Ltd.