Automatic pesticide spraying machine for sunlight greenhouse

Abstract

The invention discloses an automatic pesticide spraying machine for a sunlight greenhouse, and belongs to the technical field of atomization devices.The pesticide spraying machine for the sunlight greenhouse has the functions of spraying pesticide, applying fertilizer to leaves and cooling the leaves, and the pesticide spraying machine, the leaf fertilization and the leaf cooling can be automatically switched according to the growth requirements of plants; meanwhile, the spray valve in the sunlight greenhouse pesticide sprayer also has a lifting function and can be automatically lifted according to the growth height of the plant, so that spray can completely cover the leaf of the plant, and in addition, the sunlight greenhouse pesticide sprayer has an automatic flow control function and can automatically adjust the flow according to the growth width of the leaf of the plant, so that the pesticide spraying efficiency is improved. The functional diversity and the spraying effect of the solar greenhouse pesticide sprayer are improved, and water resources are saved.

Description

TECHNICAL FIELD

[0001] The application is a kind of sunlight greenhouse automatic pesticide spraying machine, belonging to the technical field of atomization device. BACKGROUND

[0002] In the planting of sunlight greenhouse, spraying pesticide to the leaves of plants through atomization device is a common maintenance operation, which has high absorption efficiency and quick effect.

[0003] In reality, the types of plants planted in a sunlight greenhouse are different, and the plant height and leaf size of plants are also different in different growth periods. The existing sunlight greenhouse spraying pesticide machine has single structure and function, and can only automatically spray pesticide, but cannot automatically switch between leaf fertilization and leaf cooling, and cannot automatically adjust the pesticide spraying height according to the plant height, resulting in poor coverage of plants and poor spraying effect. In addition, it does not have the function of automatically adjusting the flow of pesticide spraying, thereby causing waste of water resources. Therefore, some technicians in this field have developed a kind of sunlight greenhouse automatic pesticide spraying machine to overcome the above problems. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a kind of sunlight greenhouse automatic pesticide spraying machine, which can automatically switch between spraying pesticide, leaf fertilization and leaf cooling. The spraying valve of the sunlight greenhouse pesticide spraying machine has the functions of lifting and flow automatic adjustment, and can automatically lift the spraying valve according to the height and leaf width of the plants, and also can adjust the flow of the spraying valve in real time, thereby improving the pesticide spraying effect of the plants and saving water resources.

[0005] To solve the above technical problems, the following technical solutions are adopted: A kind of sunlight greenhouse automatic pesticide spraying machine, comprising a sunlight greenhouse, the threaded columns are evenly distributed between the room walls at both ends of the sunlight greenhouse, the threaded columns are fixedly connected with servo motors at the ends, the servo motors are located on the outer surface of the room wall at one end of the sunlight greenhouse, a moving body is arranged on the threaded column, the moving body is in the shape of a cylinder, an annular recess is arranged on the surface of the moving body, a gear ring is arranged in the annular recess of the moving body, the gear ring can rotate in the annular recess of the moving body, teeth are arranged on the upper and lower surfaces of the gear ring, a lifting gear is arranged on the upper surface of the gear ring, the gear ring and the lifting gear are engaged through the teeth, a stepping motor is fixedly connected with the center of the lifting gear, and the stepping motor is located in the moving body.

[0006] Further, a rotating column is arranged below the gear ring, the rotating column is located in the moving body, an intermediate gear is fixedly connected to the surface of the rotating column, and the intermediate gear is engaged with the gear ring through the teeth.

[0007] Further, the mobile body is further provided with a pesticide spraying disc below, and a lower rotating shaft is arranged on the side of the pesticide spraying disc.

[0008] Further, the pesticide spraying disc is hollow, and a visual camera is fixed to the center of the lower surface of the pesticide spraying disc, and a plurality of spray valves are uniformly distributed on the lower surface of the pesticide spraying disc.

[0009] Further, the pesticide spraying disc is hollow, and a visual camera is fixed to the center of the lower surface of the pesticide spraying disc, and a plurality of spray valves are uniformly distributed on the lower surface of the pesticide spraying disc.

[0010] Further, the mobile body is further provided with a pesticide spraying disc below, and a lower rotating shaft is arranged on the side of the pesticide spraying disc.

[0011] Further, the 10th pin of the chip U1 is connected with one end of the resistor R4, and the other end of the resistor R4 is connected with the 1st pin of the chip U2, the chip U2 is an optical coupler, the model of the chip U2 is TLP521, the 2nd pin of the chip U2 is connected with a ground wire, the 3rd pin of the chip U2 is connected with one end of the resistor R5, the other end of the resistor R5 is connected with a +36V power supply, and the 4th pin of the chip U2 is connected with a voltage signal DJ3. The 11th pin of the chip U1 is connected with one end of the resistor R6, the other end of the resistor R6 is connected with the 1st pin of the chip U3, the chip U3 is an optical coupler, the model of the chip U3 is TLP521, the 2nd pin of the chip U3 is connected with a ground wire, the 3rd pin of the chip U3 is connected with one end of the resistor R7, the other end of the resistor R7 is connected with a +24V power supply, and the 4th pin of the chip U3 is connected with a voltage signal YSF.

[0012] Further, the 12-pin of the chip U1 is connected with one end of the resistor R8, the other end of the resistor R8 is connected with the 1-pin of the chip U4, the chip U4 is an optical coupler, the model of the chip U4 is TLP521, the 2-pin of the chip U4 is connected with a ground wire, the 3-pin of the chip U4 is connected with one end of the resistor R9, the other end of the resistor R9 is connected with a +24V power supply, the 4-pin of the chip U4 is connected with a voltage signal WSF. The 13-pin of the chip U1 is connected with one end of the resistor R10, the other end of the resistor R10 is connected with the 1-pin of the chip U5, the chip U5 is an optical coupler, the model of the chip U5 is TLP521, the 2-pin of the chip U5 is connected with a ground wire, the 3-pin of the chip U5 is connected with one end of the resistor R11, the other end of the resistor R11 is connected with a +24V power supply, the 4-pin of the chip U5 is connected with a voltage signal FSF.

[0013] Further, the 20-pin of the chip U1 is connected with the 1-pin of the intermediate relay K1, the 2-pin of the intermediate relay K1 is connected with a ground wire, the 3-pin of the intermediate relay K1 is connected with a +48V power supply, the 4-pin of the intermediate relay K1 is connected with a voltage signal DJ1. The 21-pin of the chip U1 is connected with the 1-pin of the intermediate relay K2, the 2-pin of the intermediate relay K2 is connected with a ground wire, the 3-pin of the intermediate relay K2 is connected with a +48V power supply, the 4-pin of the intermediate relay K2 is connected with a voltage signal DJ2.

[0014] Further, the 22-pin of the chip U1 is connected with one end of the resistor R13 and the 2-pin of the chip U6, the model of the chip U6 is LM358, the other end of the resistor R13 is connected with a ground wire, the 3-pin of the chip U6 is connected with one end of the resistor R12 and a current signal I0, the current signal I0 is from the output signal of the flow meter, the other end of the resistor R12 is connected with a ground wire, the 8-pin of the chip U6 is connected with a +5V power supply, the 4-pin of the chip U6 is connected with a ground wire, the 1-pin of the chip U6 is connected with one end of the resistor R14, the other end of the resistor R14 is connected with the base of the triode Q1, the collector of the triode Q1 is connected with a +10V power supply, the emitter of the triode Q1 is connected with an adjusting valve voltage signal TJF and one end of the resistor R15, the other end of the resistor R15 is connected with a ground wire.

[0015] Compared with the prior art, the above technical scheme has the following technical effects: 1、The sunlit greenhouse pesticide spraying machine has the functions of spraying pesticide, leaf fertilization and leaf cooling, can automatically switch according to the growth needs of plants, and improves the functional diversity of the sunlit greenhouse pesticide spraying machine.

[0016] 2、The spraying valve in the sunlit greenhouse pesticide spraying machine has a lifting function, can automatically lift the spraying valve according to the growth height of the plants, can completely cover the plant leaves with spraying, and improves the spraying effect of the pesticide spraying machine.

[0017] 3. The sprayer for greenhouses of this invention has an automatic flow control function, which can automatically adjust the flow rate according to the leaf growth width of the plant, thus saving water resources. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale and orientation.

[0019] Figure 1 This is a schematic diagram of the structural connection of the present invention; Figure 2 The circuit connection principle of this invention Figure 1 ; Figure 3 The circuit connection principle of this invention Figure 2 ; Figure 4 The circuit connection principle of this invention Figure 3 .

[0020] Figure 1 Components: 1-Sunlight greenhouse, 2-Threaded column, 3-Servo motor, 4-Moving body, 5-Lifting gear, 6-Stepper motor, 7-Gear ring, 8-Rotating column, 9-Intermediate gear, 10-Spraying disc, 11-Lower rotating shaft, 12-Intermediate rotating shaft, 13-Spray valve, 14-Vision camera, 15-Regulating valve, 16-Inlet pump, 17-Medicine tank, 18-Warm water tank, 19-Fertilizer tank, 20-Inlet pipe, 21-Medicine valve, 22-Warm water valve, 23-Fertilizer valve, 24-Folding rod, 25-Flow meter. Detailed Implementation

[0021] like Figure 1 As shown, an automatic pesticide spraying machine for a solar greenhouse includes a solar greenhouse 1. Threaded columns 2 are evenly distributed between the two end walls of the solar greenhouse 1. A servo motor 3 is fixedly connected to the end of each threaded column 2. The servo motor 3 is located on the outer surface of one end wall of the solar greenhouse 1. A movable body 4 is provided on the threaded column 2. The movable body 4 is cylindrical in shape and has an annular recess on its surface. A toothed ring 7 is provided inside the annular recess of the movable body 4. The toothed ring 7 can rotate within the annular recess of the movable body 4. Teeth are provided on both the upper and lower surfaces of the toothed ring 7. A lifting gear 5 is provided on the upper surface of the toothed ring 7. The toothed ring 7 and the lifting gear 5 mesh with each other through the teeth. A stepper motor 6 is fixedly connected to the center of the lifting gear 5 and is located inside the movable body 4.

[0022] The tooth ring 7 is also provided below the rotating column 8, which is located in the moving body 4 and can rotate in the moving body 4. The rotating column 8 is provided in pairs on the surface of the moving body 4. The intermediate gear 9 is fixed on the surface of the rotating column 8 and is engaged with the tooth ring 7 through the teeth.

[0023] The moving body 4 is also provided below the spray disc 10. The spray disc 10 is provided with a lower rotating shaft 11 on the side. The lower rotating shaft 11 has four, and the lower rotating shaft 11 is provided in pairs on the surface of the spray disc 10. The folding rod 24 is connected between the end of the rotating column 8 and the lower rotating shaft 11. The intermediate rotating shaft 12 is also provided on the folding rod 24. When the step motor 6 is started and rotated in a certain direction, the lifting gear 5 rotates to drive the tooth ring 7 to rotate in the annular recess on the surface of the moving body 4. The rotation of the tooth ring 7 drives the intermediate gear 9 and the rotating column 8 to rotate. The rotating column 8 rotates to drive the upper end of the folding rod 24 to rotate. The folding rod 24 is folded upward around the intermediate rotating shaft 12 and the lower rotating shaft 11, which causes the lower end of the folding rod 24 to rise upward, driving the lower end of the spray disc 10 to shrink and gather upward. Conversely, when the step motor 6 rotates in the opposite direction, it will cause the spray disc 10 to descend.

[0024] The spray disc 10 is hollow inside. The visual camera 14 is fixed on the center of the lower surface of the spray disc 10. The spray disc 10 is also uniformly distributed with spray valves 13 on the lower surface. The visual camera 14 is used to shoot the growth status of the plants below the spray disc 10.

[0025] A kind of sunlight greenhouse automatic spraying machine, it also includes liquid medicine tank 17, warm water tank 18 and fertilizer tank 19. The liquid inlet pipe 20 is also communicated below the liquid medicine tank 17, warm water tank 18 and fertilizer tank 19. The liquid inlet pipe 20 is a hose, and the end of the liquid inlet pipe 20 is connected with the hollow inside of the spray disc 10. The liquid medicine valve 21 is arranged between the liquid medicine tank 17 and the liquid inlet pipe 20. The warm water valve 22 is arranged between the warm water tank 18 and the liquid inlet pipe 20. The fertilizer valve 23 is arranged between the fertilizer tank 19 and the liquid inlet pipe 20. The adjusting valve 15, the medicine inlet pump 16 and the flow meter 25 are also arranged on the liquid inlet pipe 20. The adjusting valve 15 is a proportional adjusting valve. The medicine inlet pump 16 is used to extract the liquid in the liquid medicine tank 17, the warm water tank 18 and the fertilizer tank 19, and spray it onto the leaves of the plants through the spray valves 13 below the spray disc 10. The flow meter 25 is used to detect the flow of the liquid sprayed by the spray valves 13.

[0026] As Figure 2As shown in the drawings, the automatic pesticide spraying machine of the sunlight greenhouse further comprises a chip U1, the model of the chip U1 is STM32F1038CT6, the 2-pin of the chip U1 is connected with the 1-pin of the crystal oscillator Y1 and one end of the capacitor C1, the 3-pin of the chip U1 is connected with the 3-pin of the crystal oscillator Y1 and one end of the capacitor C2, the other end of the capacitor C1, the other end of the capacitor C2 and the 2-pin of the crystal oscillator Y1 are connected with the ground wire, the 4-pin of the chip U1 is connected with one end of the resistor R1 and one end of the button S1, the other end of the resistor R1 is connected with the +5V power supply, the other end of the button S1 is connected with one end of the capacitor C3, the other end of the capacitor C3 is connected with the ground wire, the 5-pin, 18-pin, 26-pin and 36-pin of the chip U1 are connected with the +5V power supply, the 1-pin, 6-pin, 19-pin and 27-pin of the chip U1 are connected with the ground wire.

[0027] The 8-pin of the chip U1 is connected with one end of the resistor R2, one end of the capacitor C4 and the communication signal ST, the other end of the resistor R2 and the other end of the capacitor C4 are connected with the ground wire, the 9-pin of the chip U1 is connected with one end of the resistor R3, one end of the capacitor C5 and the communication signal OU, the other end of the resistor R3 and the other end of the capacitor C5 are connected with the ground wire, the communication signal OU and the communication signal ST come from the visual camera, the visual camera shoots the growth condition of the plant leaf surface, and the growth condition is transmitted to the chip U1 through the 8-pin of the chip U1 and the 9-pin of the chip U1.

[0028] As shown in the drawings, Figure 2 and Figure 3 The 10-pin of the chip U1 is connected with one end of the resistor R4, the other end of the resistor R4 is connected with the 1-pin of the chip U2, the chip U2 is an optical coupler, the model of the chip U2 is TLP521, the 2-pin of the chip U2 is connected with the ground wire, the 3-pin of the chip U2 is connected with one end of the resistor R5, the other end of the resistor R5 is connected with the +36V power supply, the 4-pin of the chip U2 is connected with the voltage signal DJ3, the voltage signal DJ3 is the starting signal of the stepping motor, the 10-pin of the chip U1 outputs high level, the chip U2 is turned on, the voltage signal DJ3 is connected with the +36V power supply, and the stepping motor is started.

[0029] The 11-pin of the chip U1 is connected with one end of the resistor R6, the other end of the resistor R6 is connected with the 1-pin of the chip U3, the chip U3 is an optical coupler, the model of the chip U3 is TLP521, the 2-pin of the chip U3 is connected with the ground wire, the 3-pin of the chip U3 is connected with one end of the resistor R7, the other end of the resistor R7 is connected with the +24V power supply, the 4-pin of the chip U3 is connected with the voltage signal YSF, the voltage signal YSF is the starting signal of the pesticide valve, the 11-pin of the chip U1 outputs high level, the chip U3 is turned on, the voltage signal YSF is connected with the +24V power supply, and the pesticide valve is started.

[0030] The 12-pin of the chip U1 is connected with one end of the resistor R8, the other end of the resistor R8 is connected with the 1-pin of the chip U4, the chip U4 is an optical coupler, the model of the chip U4 is TLP521, the 2-pin of the chip U4 is connected with the ground wire, the 3-pin of the chip U4 is connected with one end of the resistor R9, the other end of the resistor R9 is connected with the +24V power supply, the 4-pin of the chip U4 is connected with the voltage signal WSF, the voltage signal WSF is the starting signal of the warm water valve, the 12-pin of the chip U1 outputs high level, the chip U4 is turned on, the voltage signal WSF is communicated with the +24V power supply, and the warm water valve is started.

[0031] The 13-pin of the chip U1 is connected with one end of the resistor R10, the other end of the resistor R10 is connected with the 1-pin of the chip U5, the chip U5 is an optical coupler, the model of the chip U5 is TLP521, the 2-pin of the chip U5 is connected with the ground wire, the 3-pin of the chip U5 is connected with one end of the resistor R11, the other end of the resistor R11 is connected with the +24V power supply, the 4-pin of the chip U5 is connected with the voltage signal FSF, the voltage signal FSF is the starting signal of the fertilizer water valve, the 13-pin of the chip U1 outputs high level, the chip U5 is turned on, the voltage signal FSF is communicated with the +24V power supply, and the fertilizer water valve is started.

[0032] The 20-pin of the chip U1 is connected with the 1-pin of the intermediate relay K1, the 2-pin of the intermediate relay K1 is connected with the ground wire, the 3-pin of the intermediate relay K1 is connected with the +48V power supply, the 4-pin of the intermediate relay K1 is connected with the voltage signal DJ1, the voltage signal DJ1 is the starting signal of the servo motor, the 20-pin of the chip U1 outputs high level, the intermediate relay K1 is turned on, the voltage signal DJ1 is communicated with the +48V power supply, and the servo motor is started.

[0033] The 21-pin of the chip U1 is connected with the 1-pin of the intermediate relay K2, the 2-pin of the intermediate relay K2 is connected with the ground wire, the 3-pin of the intermediate relay K2 is connected with the +48V power supply, the 4-pin of the intermediate relay K2 is connected with the voltage signal DJ2, the voltage signal DJ2 is the starting signal of the medicine feeding pump, the 21-pin of the chip U1 outputs high level, the intermediate relay K2 is turned on, the voltage signal DJ2 is communicated with the +48V power supply, and the medicine feeding pump is started.

[0034] As Figure 2 And Figure 4As shown, the 22-pin of the chip U1 is connected with one end of the resistor R13 and the 2-pin of the chip U6, the chip U6 is LM358, the other end of the resistor R13 is connected with the ground wire, the 3-pin of the chip U6 is connected with one end of the resistor R12 and the current signal I0, the current signal I0 is from the output signal of the flowmeter, the other end of the resistor R12 is connected with the ground wire, the 8-pin of the chip U6 is connected with the +5V power supply, the 4-pin of the chip U6 is connected with the ground wire, the 1-pin of the chip U6 is connected with one end of the resistor R14, the other end of the resistor R14 is connected with the base of the triode Q1, the collector of the triode Q1 is connected with the +10V power supply, the emitter of the triode Q1 is connected with the regulating valve pressure regulating signal TJF and one end of the resistor R15, the other end of the resistor R15 is connected with the ground wire.

[0035] The visual camera shoots the growth condition of the plant below, which is transmitted to the chip U1 through the 8-pin and the 9-pin of the chip U1, the chip U1 analyzes and judges the growth state of the plant, and analyzes whether the growth is normal, when the plant needs to be sprayed, the stepping motor starts, according to the growth height of the plant and the growth condition of the leaf surface, the pesticide spraying disc is adjusted to the appropriate height, the 22-pin of the chip U1 can output a certain duty ratio of PWM wave according to the growth height of the plant and the growth condition of the leaf surface, which flows into the ground wire through the resistor R13, the pesticide valve and the pesticide pump are opened, the liquid in the pesticide tank is sprayed to the leaf surface of the plant through the spraying valve, at the same time, the servo motor starts, the threaded column rotates, and the moving body moves from one end of the sunlight greenhouse to the other end, the plant below the spraying valve is sprayed, the output current signal I0 of the flowmeter flows into the ground wire through the resistor R12, the 2-pin of the chip U6 collects the voltage at the upper end of the resistor R13, the 3-pin of the chip U6 collects the voltage at the upper end of the resistor R12, when the voltage at the 2-pin of the chip U1 is greater than the voltage at the 3-pin of the chip U1, it indicates that the actual spraying valve flow value is less than the set spraying valve flow value, the 1-pin of the chip U6 outputs high level, the triode Q1 is turned on, the resistor R15 has an amplification current, the regulating valve pressure regulating signal TJF has a voltage signal output, and the regulating valve increases the opening degree, so that the size of the flow in the spraying valve can be adjusted in real time according to the actual flow value.

[0036] The visual camera shoots the growth condition of the plant below, when fertilization is needed, the fertilizer valve is opened, when cooling is needed, the warm water valve is opened, the moving body moves from one end of the sunlight greenhouse to the other end, and the above-mentioned spraying process is repeated to complete the growth of the plant.

[0037] The description of the present application is given for the purpose of illustration and description, and is not exhaustive or limiting to the present application. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand the present application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. An automatic pesticide spraying machine for a solar greenhouse, characterized in that: The greenhouse includes a solar greenhouse (1). Threaded columns (2) are evenly distributed between the two walls of the solar greenhouse (1). A servo motor (3) is fixed to the end of the threaded column (2). The servo motor (3) is located on the outer surface of one wall of the solar greenhouse (1). A movable body (4) is provided on the threaded column (2). The movable body (4) is cylindrical. An annular recess is provided on the surface of the movable body (4). A toothed ring (7) is provided in the annular recess of the movable body (4). The toothed ring (7) can rotate in the annular recess of the movable body (4). Teeth are provided on both the upper and lower surfaces of the toothed ring (7). A lifting gear (5) is provided on the upper surface of the toothed ring (7). The toothed ring (7) and the lifting gear (5) mesh with each other through teeth. A stepper motor (6) is fixed to the center of the lifting gear (5). The stepper motor (6) is located inside the movable body (4).

2. The automatic pesticide spraying machine for a solar greenhouse as described in claim 1, characterized in that: A rotating column (8) is also provided below the toothed ring (7). The rotating column (8) is located on the moving body (4). An intermediate gear (9) is fixedly connected to the surface of the rotating column (8). The intermediate gear (9) meshes with the toothed ring (7) through its teeth.

3. The automatic pesticide spraying machine for a solar greenhouse as described in claim 2, characterized in that: Below the moving body (4) is a spraying disc (10), and a lower rotating shaft (11) is provided on the side of the spraying disc (10). A folding rod (24) is connected between the end of the rotating column (8) and the lower rotating shaft (11), and an intermediate rotating shaft (12) is provided on the folding rod (24).

4. The automatic pesticide spraying machine for a solar greenhouse as described in claim 3, characterized in that: The spraying disc (10) is hollow inside, and a vision camera (14) is fixedly connected to the center of the lower surface of the spraying disc (10). Spray valves (13) are also evenly distributed on the lower surface of the spraying disc (10).

5. The automatic pesticide spraying machine for a solar greenhouse as described in claim 1, characterized in that: It also includes a medicine tank (17), a warm water tank (18) and a fertilizer tank (19). The medicine tank (17), the warm water tank (18) and the fertilizer tank (19) are connected to an inlet pipe (20). A medicine valve (21) is provided between the medicine tank (17) and the inlet pipe (20). A warm water valve (22) is provided between the warm water tank (18) and the inlet pipe (20). A fertilizer valve (23) is provided between the fertilizer tank (19) and the inlet pipe (20). A regulating valve (15), a medicine pump (16) and a flow meter (25) are also provided on the inlet pipe (20).

6. The automatic pesticide spraying machine for a solar greenhouse as described in claim 1, characterized in that: This also includes chip U1, model STM32F1038CT6. Pin 2 of chip U1 is connected to pin 1 of crystal oscillator Y1 and one end of capacitor C1. Pin 3 of chip U1 is connected to pin 3 of crystal oscillator Y1 and one end of capacitor C2. The other ends of capacitor C1, capacitor C2, and pin 2 of crystal oscillator Y1 are connected to ground. Pin 4 of chip U1 is connected to one end of resistor R1 and one end of button S1. The other end of resistor R1 is connected to a +5V power supply. The other end of button S1 is connected to one end of capacitor C3. The other end of C3 is connected to a ground wire. Pins 5, 18, 26, and 36 of chip U1 are connected to a +5V power supply. Pins 1, 6, 19, and 27 of chip U1 are connected to a ground wire. Pin 8 of chip U1 is connected to one end of resistor R2, one end of capacitor C4, and the communication signal ST. The other end of resistor R2 and the other end of capacitor C4 are connected to a ground wire. Pin 9 of chip U1 is connected to one end of resistor R3, one end of capacitor C5, and the communication signal OU. The other end of resistor R3 and the other end of capacitor C5 are connected to a ground wire.

7. The automatic pesticide spraying machine for a solar greenhouse as described in claim 6, characterized in that: Pin 10 of chip U1 is connected to one end of resistor R4, and the other end of resistor R4 is connected to pin 1 of chip U2. Chip U2 is an optocoupler, and the model of chip U2 is TLP521. Pin 2 of chip U2 is connected to ground. Pin 3 of chip U2 is connected to one end of resistor R5, and the other end of resistor R5 is connected to a +36V power supply. Pin 4 of chip U2 is connected to voltage signal DJ3. Pin 11 of chip U1 is connected to one end of resistor R6, and the other end of resistor R6 is connected to pin 1 of chip U3. Chip U3 is an optocoupler, and the model of chip U3 is TLP521. Pin 2 of chip U3 is connected to ground. Pin 3 of chip U3 is connected to one end of resistor R7, and the other end of resistor R7 is connected to a +24V power supply. Pin 4 of chip U3 is connected to a voltage signal YSF.

8. An automatic pesticide spraying machine for a solar greenhouse as described in claim 6, characterized in that: Pin 12 of chip U1 is connected to one end of resistor R8, and the other end of resistor R8 is connected to pin 1 of chip U4. Chip U4 is an optocoupler, and the model of chip U4 is TLP521. Pin 2 of chip U4 is connected to ground. Pin 3 of chip U4 is connected to one end of resistor R9, and the other end of resistor R9 is connected to a +24V power supply. Pin 4 of chip U4 is connected to a voltage signal WSF. Pin 13 of chip U1 is connected to one end of resistor R10, and the other end of resistor R10 is connected to pin 1 of chip U5. Chip U5 is an optocoupler, and the model of chip U5 is TLP521. Pin 2 of chip U5 is connected to ground. Pin 3 of chip U5 is connected to one end of resistor R11, and the other end of resistor R11 is connected to a +24V power supply. Pin 4 of chip U5 is connected to a voltage signal FSF.

9. An automatic pesticide spraying machine for a solar greenhouse as described in claim 6, characterized in that: Pin 20 of the chip U1 is connected to pin 1 of the intermediate relay K1, pin 2 of the intermediate relay K1 is connected to the ground wire, pin 3 of the intermediate relay K1 is connected to the +48V power supply, and pin 4 of the intermediate relay K1 is connected to the voltage signal DJ1. Pin 21 of the chip U1 is connected to pin 1 of the intermediate relay K2, pin 2 of the intermediate relay K2 is connected to the ground wire, pin 3 of the intermediate relay K2 is connected to the +48V power supply, and pin 4 of the intermediate relay K2 is connected to the voltage signal DJ2.

10. An automatic pesticide spraying machine for a solar greenhouse as described in claim 6, characterized in that: Pin 22 of chip U1 is connected to one end of resistor R13 and pin 2 of chip U6. Chip U6 is an LM358. The other end of resistor R13 is connected to ground. Pin 3 of chip U6 is connected to one end of resistor R12 and current signal I0, which comes from the output signal of the flow meter. The other end of resistor R12 is connected to ground. Pin 8 of chip U6 is connected to a +5V power supply. Pin 4 of chip U6 is connected to ground. Pin 1 of chip U6 is connected to one end of resistor R14. The other end of resistor R14 is connected to the base of transistor Q1. The collector of transistor Q1 is connected to a +10V power supply. The emitter of transistor Q1 is connected to the regulating valve voltage regulation signal TJF ​​and one end of resistor R15. The other end of resistor R15 is connected to ground.

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