CN111866462B - Low-altitude scanning pest and disease identification system and method based on aircraft - Google Patents
Low-altitude scanning pest and disease identification system and method based on aircraft Download PDFInfo
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- CN111866462B CN111866462B CN202010711249.9A CN202010711249A CN111866462B CN 111866462 B CN111866462 B CN 111866462B CN 202010711249 A CN202010711249 A CN 202010711249A CN 111866462 B CN111866462 B CN 111866462B
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- 241000607479 Yersinia pestis Species 0.000 title claims abstract description 38
- 201000010099 disease Diseases 0.000 title claims abstract description 25
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003079 width control Methods 0.000 claims abstract description 16
- 238000003384 imaging method Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 7
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- 238000005516 engineering process Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 238000013500 data storage Methods 0.000 claims description 4
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- 241000196324 Embryophyta Species 0.000 description 16
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- 238000005507 spraying Methods 0.000 description 1
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- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
- B64D47/08—Arrangements of cameras
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
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- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/56—Extraction of image or video features relating to colour
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/10—Terrestrial scenes
- G06V20/188—Vegetation
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/16—Electric signal transmission systems in which transmission is by pulses
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Abstract
The invention relates to the field of pest and disease identification systems, and discloses a low-altitude scanning pest and disease identification system based on an aircraft and a method thereof, wherein the low-altitude scanning pest and disease identification system comprises the following steps: the device comprises an acquisition control unit, a pulse width control unit, a wireless communication unit, an image processing unit and an imaging display unit; the invention utilizes the faults of the camera sensor to collect the plant conditions in the external farmland, simultaneously, when the camera sensor detects that the diseases and pests are, the collected signals pass through an internal image recognition matching system to carry out pre-matching and recognition of the disease and pest information, when the disease and pest information is confirmed, the recognition signals pass through a singlechip to generate output pulse signals, and pulse signal width modulation is carried out through a pulse width control unit; the invention can better observe the real-time condition of the plants in the farmland, can not cause the problem that the blind area cannot be detected, and simultaneously pre-identifies and matches the collected signals, thereby greatly improving the working efficiency and further improving the working efficiency.
Description
Technical Field
The invention relates to the field of pest and disease identification systems, in particular to a low-altitude scanning pest and disease identification system and method based on an aircraft.
Background
In recent years, the number of people in rural areas in China is getting smaller and smaller, the population of young people is more mobile, and the proportion of the population of old people is large, so the problem of aging of the population is serious. The level of mechanization of rural agricultural field is than lower, and unmanned aerial vehicle gets the automatic operation in the farmland, can let the peasant household of the abundance know the crop growth condition. Traditional manual planting's recruitment expense is high, and plant protection unmanned aerial vehicle is the typical representative that high-tech is applied to the agricultural, compares in manual work or traditional plant protection machinery, and its efficiency is 10~20 times of ground plant protection machinery, is 50 ~ 100 times of manual work. Although there is certain degree of difficulty in controlling plant protection unmanned aerial vehicle, nevertheless more has the advantage in farmland adaptability, can realize the task of spraying in all kinds of topography farmland through remote control.
With the development of the pest and disease identification system technology, the country pays more and more attention to agriculture, the machining technology level is continuously improved, a plurality of mechanized agricultural machinery are produced at the same time, pest and disease identification machinery is more and more advanced, with the increase of rural labor cost, the cost can be saved by effectively removing pests, the economic benefit is considerable, and in recent years, the aircraft scans for pest and disease identification. The working efficiency of seed metering is directly influenced by the working performance of the low-altitude scanning pest and disease identification system of the aircraft.
Farmland scanning plant diseases and insect pests identification system among the prior art is through setting up at a plurality of camera sensor in the farmland outside, carry out not equidirectional survey, but the overall situation in farmland can not be scanned completely like this, can't scan plant diseases and insect pests discernment to some plants of hiding surveying the blind area, this kind has very big harm to the plant species in the farmland, and prior art's scanning plant diseases and insect pests identification technology is all through gathering sending to control terminal and discerning, can not in time make work order like this, can cause further injury to plant species like this.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a low-altitude scanning pest and disease identification system based on an aircraft and a method thereof, and aims to solve the problems.
The technical scheme is as follows: a low latitude scanning pest identification system based on aircraft includes:
the collecting control unit is used for collecting and identifying the pest and disease damage images of the plants in the farmland by utilizing the camera shooting component arranged outside the aircraft, and transmitting the identification signals;
a pulse width control unit for outputting the identification signal by using the PWM wave;
the wireless communication unit transmits the identification signal acquired by the aircraft to the control terminal through a wireless technology by utilizing the technology of the Internet of things;
the image processing unit receives the acquired signals by using a receiver arranged on the control terminal and processes and decodes the acquired signals;
and the imaging display unit is used for acquiring signals and outputting the signals and the display so as to image the externally scanned image.
In one embodiment, the acquisition control unit includes: the system comprises a singlechip U1, a capacitor C1, a crystal oscillator tube X1, a button S1, a capacitor C3, a resistor R1, a camera sensor U2, an inverter U3, a driving chip U5, a capacitor C10, a capacitor C9, an inductor L1, a resistor R5, a resistor R6, a triode Q2, a capacitor C8, a capacitor C11, an emitter U6 and a capacitor C7; wherein, 19 # of the single chip microcomputer U1 is connected with one end of the capacitor C1 and the pin No. 1 of the crystal oscillator tube X1, 18 # of the single chip microcomputer U1 is connected with one end of the capacitor C2 and the pin No. 2 of the crystal oscillator tube X1, the other end of the capacitor C1 is connected with the other end of the capacitor C2 and grounded, the pin No. 9 of the single chip microcomputer U1 is connected with one end of the button S1, one end of the capacitor C3 and one end of the resistor R1, the other end of the button S1 is connected with one end of the capacitor C3, the other end of the resistor R1 is grounded, the pin No. 1 of the single chip microcomputer U1 is connected with the pin No. 2 of the inverter U3, the pin No. 1 of the inverter U3 is connected with the pin No. 2 of the image sensor U2, the pin No. 3 of the image sensor U2 inputs voltage, and the pin No. 1 of the image sensor U2 is grounded, no. 21 pin of the single chip microcomputer U1 is connected with No. 5 pin of the drive chip U5, No. 22 pin of the single chip microcomputer U1 is connected with No. 7 pin of the drive chip U5, No. 23 pin of the single chip microcomputer U1 is connected with No. 10 pin of the drive chip U5, No. 24 pin of the single chip microcomputer U1 is connected with No. 12 pin of the drive chip U5, No. 25 pin of the single chip microcomputer U1 is connected with No. 6 pin of the drive chip U5, No. 26 pin of the single chip microcomputer U1 is connected with No. 11 pin of the drive chip U5, No. 9 pin of the drive chip U5 is connected with No. 4 pin, No. 1 pin, No. 15 pin and No. 8 pin of the drive chip U5 are connected and grounded, No. 2 pin of the drive chip U5 is output, No. 3 pin of the drive chip U5 is output, No. 10 pin of the single chip U1 is connected with one end of the capacitor C10, the other end of the capacitor C10 is connected to both one end of the capacitor C9 and one end of the inductor L1, the other end of the capacitor C9 is connected to both one end of the resistor R6 and the base of the transistor Q2, the collector of the transistor Q2 is connected to both one end of the capacitor C8 and one end of the resistor R5, the pin No. 2 of the emitter U6 is connected with the other end of the capacitor C8, the pin No. 6 of the emitter U6 is connected with one end of the capacitor C7, the emitter of the transistor Q2 is connected to the other end of the inductor L1 and the pin No. 4 of the transmitter U6, and the pin No. 4 of the transmitter U6 is grounded, the other end of the resistor R5 is connected with the other end of the resistor R6 and one end of the capacitor C11 at the same time, the other end of the capacitor C11 is grounded, and the No. 3 pin of the transmitter U6 is connected with one end of the capacitor C11 and inputs a voltage.
In one embodiment, the pulse width control unit includes: the circuit comprises a resistor R4, a diode D4, a triode Q1, a capacitor C4, a Schottky diode D3, a resistor R3, a resistor R2, a diode D1, a diode D2, an adjustable resistor RV1, a capacitor C5 and an integrated circuit U4; pin 7 of the integrated circuit U4 is connected to one end of the resistor R2 and the control end of the adjustable resistor RV1, pin 2 and pin 6 of the integrated circuit U4 are connected to the negative electrode of the diode D1, the positive electrode of the diode D2 and one end of the capacitor C5, the positive electrode of the diode D1 is connected to the other end of the resistor R2, the negative electrode of the diode D2 is connected to one end of the adjustable resistor RV1, the other end of the adjustable resistor RV1 is connected to one end of the resistor R3, pin 5 and pin 1 of the integrated circuit U4 are connected to one end of the capacitor C6, pin 1 of the integrated circuit U4 is connected to the other end of the capacitor C6 and the other end of the capacitor C5 and is grounded, pin 3 of the integrated circuit U4 is connected to the base of the triode Q1, and pin 4 of the integrated circuit U4 is connected to the control end of the transistor Q1, No. 8 pin connection and simultaneously with resistance R3's the other end with Schottky diode D3's negative pole is connected, electric capacity C4's one end simultaneously with resistance R4's one end with Schottky diode D3's negative pole is connected, electric capacity C4's the other end with Schottky diode D3's anodal connection and ground connection, triode Q1's projecting pole input signal and ground connection, triode Q1's collecting electrode with diode D4's anodal connection and output drive signal, resistance R4's the other end with diode D4's negative pole is connected and input voltage and output drive signal.
In one embodiment, the model of the single chip microcomputer U1 is AT89C52, the model of the driving chip U5 is L298, and the model of the integrated circuit U4 is NE 555.
In one embodiment, the image processing unit receives the identification signal through the receiver, performs I/O detection on the data through the data storage module, performs data analysis when the data meets the storage condition, and finally performs output storage and I/O output at the same time.
In one embodiment, the imaging display unit comprises at least one display.
A method for a low-altitude scanning pest and disease identification system based on an aircraft is characterized in that when a camera sensor U2 collects external images, the interior of the system firstly identifies and matches collected signals, and the method comprises the following specific steps:
step 2, after the collected signals are matched with the pest information base and the problem database, pulse signals can be generated through a single chip microcomputer U1 of the collection control unit, and meanwhile the pulse signals are subjected to pulse signal width modulation through the pulse width control unit, so that the signals are converted into high-frequency signals, and meanwhile, the transmitters are used for conducting wireless transmission.
In one embodiment, according to step 1, it is indicated that when the acquisition signal is input to the acquisition control unit, the signal needs to be preprocessed, so that:
and 6, matching the pest information base with the image signal, and transmitting the matching signal to a database for database identification if the matching is in accordance with the matching, so as to identify whether the pest causes damage to the plant, and simultaneously, wirelessly transmitting the identification signal through a transmitter.
In one embodiment, the identification signal is transmitted to the single-chip microcomputer U1, and the single-chip microcomputer U1 generates a PWM signal and transmits the PWM signal to the pulse width control unit to perform width modulation of the pulse signal, so that the signal meets the transmission standard, and the transmitter is used for wireless communication transmission.
In one embodiment, when the receiver of the control terminal receives the signal format, the collected signal is processed and decoded, and is simultaneously transmitted to a display in the imaging display unit for further imaging and observation.
Has the advantages that: the invention sets a plurality of camera sensors on the aircraft, simultaneously collects the plant conditions in the external farmland by using the faults of the camera sensors, simultaneously, when the camera sensors detect diseases and pests, the collected signals pass through an internal image identification matching system to carry out pre-matching and identification of disease and pest information, when the disease and pest information is confirmed, the identification signals pass through a singlechip to generate output pulse signals, and pulse signal width modulation is carried out by a pulse width control unit, so that the output signals can be transmitted more quickly, meanwhile, a transmitter is used for carrying out wireless transmission, thereby a control terminal and simultaneously control signals are stored, and finally, an imaging display unit is used for outputting the signals to a display for imaging observation; therefore, the invention can better observe the real-time situation of the plants in the farmland, can not cause the problem that the blind area cannot be detected, and simultaneously pre-identifies and matches the collected signals, thereby greatly improving the working efficiency, better making deinsectization instructions and improving the working efficiency.
Drawings
Fig. 1 is a schematic diagram of the operation of the present invention.
Fig. 2 is a circuit diagram of an acquisition control unit of the present invention.
Fig. 3 is a circuit diagram of a pulse width control unit of the present invention.
Fig. 4 is a schematic diagram of the identification and matching of the collected signals of the present invention.
Fig. 5 is a schematic diagram of pulse width modulation according to the present invention.
FIG. 6 is a schematic of the data storage of the present invention.
Detailed Description
In this embodiment, as shown in fig. 1, a low-altitude scanning pest identification system based on an aircraft and a method thereof include: the device comprises an acquisition control unit, a pulse width control unit, a wireless communication unit, an image processing unit and an imaging display unit.
In a further embodiment, the acquisition control unit comprises: the electronic device comprises a single chip microcomputer U1, a capacitor C1, a crystal oscillator tube X1, a button S1, a capacitor C3, a resistor R1, a camera sensor U2, an inverter U3, a driving chip U5, a capacitor C10, a capacitor C9, an inductor L1, a resistor R5, a resistor R6, a triode Q2, a capacitor C8, a capacitor C11, an emitter U6 and a capacitor C7.
In a further embodiment, 19 of the single chip microcomputer U1 is connected to one end of the capacitor C1 and the pin No. 1 of the crystal oscillator tube X1, 18 of the single chip microcomputer U1 is connected to one end of the capacitor C2 and the pin No. 2 of the crystal oscillator tube X1, the other end of the capacitor C1 and the other end of the capacitor C2 are connected to ground, the pin No. 9 of the single chip microcomputer U1 is connected to one end of the button S1, one end of the capacitor C3 and one end of the resistor R1, the other end of the button S1 is connected to one end of the capacitor C3, the other end of the resistor R1 is connected to ground, the pin No. 1 of the single chip microcomputer U1 is connected to the pin No. 2 of the inverter U3, the pin No. 1 of the inverter U3 is connected to the pin No. 2 of the image sensor U2, the pin No. 3 of the image sensor U2 inputs voltage, and the pin No. 1 of the image sensor U2 is connected to ground, no. 21 pin of the single chip microcomputer U1 is connected with No. 5 pin of the drive chip U5, No. 22 pin of the single chip microcomputer U1 is connected with No. 7 pin of the drive chip U5, No. 23 pin of the single chip microcomputer U1 is connected with No. 10 pin of the drive chip U5, No. 24 pin of the single chip microcomputer U1 is connected with No. 12 pin of the drive chip U5, No. 25 pin of the single chip microcomputer U1 is connected with No. 6 pin of the drive chip U5, No. 26 pin of the single chip microcomputer U1 is connected with No. 11 pin of the drive chip U5, No. 9 pin of the drive chip U5 is connected with No. 4 pin, No. 1 pin, No. 15 pin and No. 8 pin of the drive chip U5 are connected and grounded, No. 2 pin of the drive chip U5 is output, No. 3 pin of the drive chip U5 is output, No. 10 pin of the single chip U1 is connected with one end of the capacitor C10, the other end of the capacitor C10 is connected to both one end of the capacitor C9 and one end of the inductor L1, the other end of the capacitor C9 is connected to both one end of the resistor R6 and the base of the transistor Q2, the collector of the transistor Q2 is connected to both one end of the capacitor C8 and one end of the resistor R5, the pin No. 2 of the emitter U6 is connected with the other end of the capacitor C8, the pin No. 6 of the emitter U6 is connected with one end of the capacitor C7, the emitter of the transistor Q2 is connected to the other end of the inductor L1 and the pin No. 4 of the transmitter U6, and the pin No. 4 of the transmitter U6 is grounded, the other end of the resistor R5 is connected with the other end of the resistor R6 and one end of the capacitor C11 at the same time, the other end of the capacitor C11 is grounded, and the No. 3 pin of the transmitter U6 is connected with one end of the capacitor C11 and inputs a voltage.
In a further embodiment, the pulse width control unit comprises: the circuit comprises a resistor R4, a diode D4, a triode Q1, a capacitor C4, a Schottky diode D3, a resistor R3, a resistor R2, a diode D1, a diode D2, an adjustable resistor RV1, a capacitor C5 and an integrated circuit U4.
In a further embodiment, pin 7 of the integrated circuit U4 is connected to one end of the resistor R2 and a control end of the adjustable resistor RV1, pin 2 and pin 6 of the integrated circuit U4 are connected to a cathode of the diode D1, an anode of the diode D2 and one end of the capacitor C5, an anode of the diode D1 is connected to the other end of the resistor R2, a cathode of the diode D2 is connected to one end of the adjustable resistor RV1, the other end of the adjustable resistor RV1 is connected to one end of the resistor R3, pin 5 of the integrated circuit U4 is connected to one end of the capacitor C6, pin 1 of the integrated circuit U4 is connected to the other end of the capacitor C6 and the other end of the capacitor C5 and is grounded, pin 3 of the integrated circuit U4 is connected to a base of the transistor Q1, integrated circuit U4's pin No. 4, pin No. 8 connect and simultaneously with resistance R3's the other end with schottky diode D3's negative pole is connected, electric capacity C4's one end simultaneously with resistance R4's one end with schottky diode D3's negative pole is connected, electric capacity C4's the other end with schottky diode D3's anodal connection and ground connection, triode Q1's projecting pole input signal and ground connection, triode Q1's collecting electrode with diode D4's anodal connection and output drive signal, resistance R4's the other end with diode D4's negative pole is connected and input voltage and output drive signal.
In a further embodiment, when the identification signal is transmitted to the single chip microcomputer U1 in the acquisition control unit, the program flow chart is a program flow chart for setting pulse width modulation; after the start, the system is initialized, then the required duty ratio is set, and the method of counting is repeated until the counting times is more than or equal to 100, and the required PWM waveform is output.
In a further embodiment, data storage occurs when the receiver receives the signal; firstly, initializing a system, wherein a data receiving port is required to be inquired all the time when data is received, and the data receiving state is immediately started when a high level is found; after the high level appears, the inquiry waits until the receiving port appears the low level, sets up a breakpoint simultaneously, stores the positional information immediately, sends to the aircraft through the wireless communication unit.
The working principle is as follows: when the aircraft works, the camera sensor U2 arranged outside works, and through the camera work, the collected signals are input into the singlechip U1 through the inverter U3, and the capacitor C1, the capacitor C2, the crystal oscillator tube X1 and the singlechip U1 form a clock circuit; the button S1 cooperates with the capacitor C3, the resistor R1 and the singlechip U1 to form a reset circuit, at the moment, an acquired signal is input, firstly, the signal is detected, the color of an image is mainly divided into three colors of RGB, and other colors are all in the proportion of the saturation of RGB, so that firstly, the RGB occupancy of the acquired image signal is judged, whether the R component is greater than the G component and the B component is judged, and meanwhile, a for-loop statement and an if comparison statement are adopted to extract the color characteristic; secondly, extracting a binary image so as to conveniently extract information in the image, wherein the binary image can increase the identification efficiency when being identified, and finally performing mask operation with an original image to mark a pest region; extracting the edges of the collected image; by analyzing the matrix of the edge image, corresponding pixel points of the edge of the object to be detected in the image are reserved, then, partial derivatives of effective pixels in the original image are calculated to obtain a gradient matrix of the effective pixels in the original image, and finally, the gradient matrix is analyzed to obtain a matching standard of edge gradients; secondly, matching the pest information base with image signals, if the matching accords with the condition that the matching signals are transmitted to a database for database identification, thereby identifying whether the pests cause damage to plants, meanwhile, the identification signals are transmitted to a pulse width control unit for signal modulation, a singlechip U1 converts the identification signals into pulse signals with adjustable pulse width, and transmits the pulse signals to the pulse width control unit through a driving chip U5, the signals are input through an emitter of a triode Q1, at the moment, the triode Q1 is conducted, the frequency of the pulse signals is controlled through a pin 2 and a pin 6 of an integrated circuit U4 matched with a resistor R2 and an adjustable resistor RV1, simultaneously, a diode D1 and a diode D2 carry out amplitude stabilization, and the modulated signals are output through a resistor R3, a Schottky diode D3 matched with a capacitor C4 to absorb clutter in a circuit, thereby, the modulated signals are output through a pin 3 of the integrated circuit U4, so that the transistor Q1 is conducted, and the diode D4 conducts and outputs;
pulse signals are input through a filter circuit consisting of a capacitor C10, a capacitor C9 and an inductor L1, signals lower than the working frequency are filtered, then pre-amplification is carried out through a triode Q2 in cooperation with a resistor R5 and a resistor R6, and the amplified signals are sent to a transmitter U6 through the capacitor C8 to be output; when the receiver of the control terminal receives the signal mode, the collected signal is processed and decoded, and meanwhile, the collected signal is transmitted to a display in the imaging display unit for further imaging and observation.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (4)
1. The utility model provides a low latitude scanning pest identification system based on aircraft which characterized in that includes:
the collecting control unit is used for collecting and identifying the pest and disease images of the plants in the farmland by utilizing the camera shooting component arranged outside the aircraft, and transmitting the identification signals;
the acquisition control unit includes: the system comprises a singlechip U1, a capacitor C1, a crystal oscillator tube X1, a button S1, a capacitor C3, a resistor R1, a camera sensor U2, an inverter U3, a driving chip U5, a capacitor C10, a capacitor C9, an inductor L1, a resistor R5, a resistor R6, a triode Q2, a capacitor C8, a capacitor C11, an emitter U6 and a capacitor C7; wherein, 19 # of the single chip microcomputer U1 is connected with one end of the capacitor C1 and the pin No. 1 of the crystal oscillator tube X1, 18 # of the single chip microcomputer U1 is connected with one end of the capacitor C2 and the pin No. 2 of the crystal oscillator tube X1, the other end of the capacitor C1 is connected with the other end of the capacitor C2 and grounded, the pin No. 9 of the single chip microcomputer U1 is connected with one end of the button S1, one end of the capacitor C3 and one end of the resistor R1, the other end of the button S1 is connected with one end of the capacitor C3, the other end of the resistor R1 is grounded, the pin No. 1 of the single chip microcomputer U1 is connected with the pin No. 2 of the inverter U3, the pin No. 1 of the inverter U3 is connected with the pin No. 2 of the camera sensor U2, the pin No. 3 of the camera sensor U2 inputs voltage, and the pin No. 1 of the camera sensor U2 is grounded, no. 21 pin of the single chip microcomputer U1 is connected with No. 5 pin of the drive chip U5, No. 22 pin of the single chip microcomputer U1 is connected with No. 7 pin of the drive chip U5, No. 23 pin of the single chip microcomputer U1 is connected with No. 10 pin of the drive chip U5, No. 24 pin of the single chip microcomputer U1 is connected with No. 12 pin of the drive chip U5, No. 25 pin of the single chip microcomputer U1 is connected with No. 6 pin of the drive chip U5, No. 26 pin of the single chip microcomputer U1 is connected with No. 11 pin of the drive chip U5, No. 9 pin of the drive chip U5 is connected with No. 4 pin, No. 1 pin, No. 15 pin and No. 8 pin of the drive chip U5 are connected and grounded, No. 2 pin of the drive chip U5 is output, No. 3 pin of the drive chip U5 is output, No. 10 pin of the single chip U1 is connected with one end of the capacitor C10, the other end of the capacitor C10 is connected to both one end of the capacitor C9 and one end of the inductor L1, the other end of the capacitor C9 is connected to both one end of the resistor R6 and the base of the transistor Q2, the collector of the transistor Q2 is connected to both one end of the capacitor C8 and one end of the resistor R5, the pin No. 2 of the emitter U6 is connected with the other end of the capacitor C8, the pin No. 6 of the emitter U6 is connected with one end of the capacitor C7, the emitter of the transistor Q2 is connected to the other end of the inductor L1 and the pin No. 4 of the transmitter U6, and the pin No. 4 of the transmitter U6 is grounded, the other end of the resistor R5 is connected with the other end of the resistor R6 and one end of the capacitor C11 at the same time, the other end of the capacitor C11 is grounded, and the No. 3 pin of the transmitter U6 is connected with one end of the capacitor C11 and inputs voltage;
a pulse width control unit for outputting the identification signal by using the PWM wave;
the pulse width control unit includes: the circuit comprises a resistor R4, a diode D4, a triode Q1, a capacitor C4, a Schottky diode D3, a resistor R3, a resistor R2, a diode D1, a diode D2, an adjustable resistor RV1, a capacitor C5 and an integrated circuit U4; pin 7 of the integrated circuit U4 is connected to one end of the resistor R2 and a control end of the adjustable resistor RV1, pin 2 and pin 6 of the integrated circuit U4 are connected to a negative electrode of the diode D1, a positive electrode of the diode D2 and one end of the capacitor C5, a positive electrode of the diode D1 is connected to the other end of the resistor R2, a negative electrode of the diode D2 is connected to one end of the adjustable resistor RV1, the other end of the adjustable resistor RV1 is connected to one end of the resistor R3, pin 5 of the integrated circuit U4 is connected to one end of the capacitor C6, pin 1 of the integrated circuit U4 is connected to the other end of the capacitor C6 and the other end of the capacitor C5 and grounded, pin 3 of the integrated circuit U4 is connected to a base of the transistor Q1, and pin 4 of the integrated circuit U4 is connected to a control end of the adjustable resistor C5, Pin 8 is connected and connected with the other end of the resistor R3 and the cathode of the schottky diode D3, one end of the capacitor C4 is connected with one end of the resistor R4 and the cathode of the schottky diode D3, the other end of the capacitor C4 is connected with the anode of the schottky diode D3 and grounded, the emitter of the transistor Q1 inputs a signal and grounded, the collector of the transistor Q1 is connected with the anode of the diode D4 and outputs a driving signal, and the other end of the resistor R4 is connected with the cathode of the diode D4 and inputs a voltage and outputs a driving signal;
the wireless communication unit transmits the identification signal acquired by the aircraft to the control terminal through a wireless technology by utilizing the technology of the Internet of things;
the image processing unit receives the acquired signals by using a receiver arranged on the control terminal and processes and decodes the acquired signals;
the image processing unit receives the identification signal through the receiver, performs I/O detection on data by using the data storage module, performs data analysis when the data meet storage conditions, and finally performs output storage and I/O output at the same time;
the imaging display unit acquires signals and outputs the signals to the display so as to image an externally scanned image; the imaging display unit comprises at least one display;
the model of the singlechip U1 is AT89C52, the model of the drive chip U5 is L298, and the model of the integrated circuit U4 is NE 555.
2. An identification method of an aircraft-based low altitude scanning pest identification system according to claim 1, wherein when the camera sensor U2 collects an external image, the interior firstly carries out identification and matching of a collected signal, and the specific steps are as follows:
step 1, firstly, working is carried out through one or more camera sensors arranged outside an aircraft, so that detection of plants in an external farmland is carried out, and meanwhile, detection signals are transmitted to an acquisition control unit for identification and matching;
and 2, after the acquired signals are matched and identified with the pest information base and the problem database, pulse signals are generated through a single chip microcomputer U1 of the acquisition control unit, and meanwhile the pulse signals are subjected to pulse signal width modulation through the pulse width control unit, so that the signals are converted into high-frequency signals, and meanwhile, the transmitters are used for wireless transmission.
3. The identification method of the low-altitude scanning pest identification system based on the aircraft according to claim 2, wherein the identification signal is transmitted to the single chip microcomputer U1, the single chip microcomputer U1 generates a PWM signal, and the PWM signal is transmitted to the pulse width control unit to perform width modulation on the pulse signal, so that the signal meets a transmission standard, and the transmitter is used for wireless communication transmission.
4. An identification method of an aircraft-based low altitude scanning pest identification system according to claim 3, wherein when the receiver of the control terminal receives the signal, the collected signal is processed and decoded and is simultaneously transmitted to a display in the imaging display unit for further imaging and observation.
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| CN202010711249.9A CN111866462B (en) | 2020-07-22 | 2020-07-22 | Low-altitude scanning pest and disease identification system and method based on aircraft |
| PCT/CN2020/105071 WO2022016568A1 (en) | 2020-07-22 | 2020-07-28 | System for identifying pests on basis of low-altitude scanning by aircraft and method therefor |
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