CN209455003U - A kind of unmanned plane variable farm chemical applying control device - Google Patents

Abstract

The utility model discloses a kind of unmanned plane variable farm chemical applying control device, including executive module, executive module includes the amplifying circuit for controlling the ball electromagnetic valve of unmanned plane medicine-chest opening angle, for controlling the folding of ball electromagnetic valve；Ball electromagnetic valve and ball electromagnetic valve connection；The ball electromagnetic valve include for controlling the medicine-chest valve of medicine-chest grug transportation tube flow, the ball valve motor for controlling medicine-chest valve openings angle, ball valve motor connect by route with amplifying circuit；The amplifying circuit includes resistance R1, resistance R2, NPN type triode Q1, NPN type triode Q2, relay RL, double-point double-throw switch SW, power supply VCC.Automatic adjustment application flow size may be implemented in the utility model, and real-time monitoring feeds back the flying speed, height and application situation of unmanned plane during application, environmental pollution is reduced while saving pesticide, achieve the purpose that uniform application, brings great contribution to unmanned plane agricultural application field.

Description

A kind of unmanned plane variable farm chemical applying control device

Technical field

The utility model relates to unmanned plane field more particularly to a kind of unmanned plane variable farm chemical applying control devices.

Background technique

Unmanned plane in terms of agriculture application using more and more common, but the effect of application is difficult to grasp.Due to farmland It is irregular shape mostly, and barrier is more, therefore the speed of unmanned plane of unmanned plane during application, height need Changed according to farm environment.If application flow cannot according to speed, height variation and change, cause spraying medicine concentration not Uniform phenomenon, the height of spraying medicine concentration will have a direct impact on pesticide supplying effect, the too low purpose that may do not have plant protection of concentration；Concentration mistake Height, it will cause pesticide waste and environmental pollutions.

Summary of the invention

The utility model aim is in view of the deficiencies of the prior art, to provide a kind of unmanned plane variable farm chemical applying control device.

To achieve the goals above, the technical solution of the utility model is:

A kind of unmanned plane variable farm chemical applying control device, including executive module, the executive module include for controlling nobody The ball electromagnetic valve of machine medicine-chest opening angle, the amplifying circuit for controlling the folding of ball electromagnetic valve；Ball electromagnetic valve and spherical shape Solenoid valve connection；The ball electromagnetic valve includes for controlling the medicine-chest valve of medicine-chest grug transportation tube flow, for controlling medicine The ball valve motor of case valve openings angle, ball valve motor are connect by route with amplifying circuit；The amplifying circuit includes Resistance R1, resistance R2, NPN type triode Q1, NPN type triode Q2, relay RL, double-point double-throw switch SW, fuse FU, electricity Source VCC；One end of the resistance R1 is connect with the base stage of NPN type triode Q1, the collector and power supply of NPN type triode Q1 VCC is electrically connected, and the transmitting collection of NPN type triode Q1 is connect with after the series connection of the left side coil of relay RL with ground wire；Resistance R2 One end connect with the base stage of NPN type triode Q2, the collector of NPN type triode Q2 and power supply VCC are electrically connected, NPN type The transmitting collection of triode Q2 is connect with after the series connection of the right coil of relay RL with ground wire；The other end point of resistance R1, resistance R2 It is not electrically connected with signal output end；The first binding post and the 4th binding post and power supply the VCC electricity of the double-point double-throw switch SW Property connection, the second binding post and third binding post are connect with ground wire；The double-pole of double-point double-throw switch SW respectively with ball valve motor Both ends connection.

Further, the unmanned plane variable farm chemical applying control device further includes information collection component, control assembly, and information is adopted Collect component and passes through control assembly and executive module connection；The information collection component includes being arranged in unmanned plane cabinet Pressure-altitude sensor, is arranged in unmanned plane medicine-chest loading the airspeed transducer that unmanned plane body outside top is arranged in Turbine flow transducer on pipe；The control assembly includes single-chip microcontroller；The input terminal serial ports of single-chip microcontroller is separately connected air pressure height Spend the signal output end of sensor, airspeed transducer, turbine flow transducer；Single-chip microcontroller signal output serial ports respectively with Resistance R1, resistance R2 in amplifying circuit are electrically connected.

Further, the control assembly further includes operation display board, and the body of aircraft is arranged in the operation display board It outer top and is bi-directionally connected with the input and output serial ports of single-chip microcontroller.

Further, the control assembly further includes gsm communication module, cell phone application；The gsm communication module and monolithic The input and output serial ports of machine is bi-directionally connected, and gsm communication module and cell phone application are wirelessly connected.

Compared with prior art, the utility model has the advantages and positive effects of:

The utility model using the flying height of height sensor real-time detection unmanned plane, with velocity sensor real-time detection The flying speed of unmanned plane, with the spray flow of flow sensor real-time detection unmanned plane, then sensor is adopted with single-chip microcontroller The flying height of collection, flying speed, required spraying medicine concentration signal carry out integrated treatment, and according to grading control theory, output phase is answered Control signal, realize flow automatic regulation size, and the real-time monitoring feedback flying speed of unmanned plane, height during application Degree and application situation, reduce environmental pollution while saving pesticide, have achieved the purpose that uniform application, give unmanned plane agricultural Application field brings great contribution.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the frame construction drawing of the utility model；

Fig. 2 is the signal acquisition component of the utility model and the circuit diagram of executive module；

Block flow diagram when Fig. 3 is utility model works.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, any modification, equivalent replacement, improvement and so on should be included in the utility model Within protection scope.

As shown in Figure 1, Figure 2 and Figure 3, it is the flying height for detecting unmanned plane that the utility model, which is using height sensor, The flying speed of velocity sensor real-time monitoring unmanned plane, flow sensor real-time monitoring application flow.By single-chip microcontroller information Fusion treatment is carried out to control flow valve openings size in conjunction with the required spraying medicine concentration of input.

A kind of unmanned plane variable farm chemical applying control device, including signal acquisition component, control assembly and executive module；

The signal acquisition component includes multiple sensors；The signal acquisition component is acquired according to multiple sensors Flying height, flying speed and the application flow signal of unmanned plane；The signal output end of the signal acquisition component respectively with Input terminal P1.2, P1.3, P1.4 serial ports of single-chip microcontroller connects.

Optionally, the signal acquisition component includes pressure-altitude sensor, airspeed transducer, turbine flow biography Sensor；

The pressure-altitude sensor, the utility model use the high-precision baroceptor of model BMP280, if It sets in the cabinet of aircraft, for acquiring the flying height of aircraft in real time；

The airspeed transducer, the utility model use the Pitot tube anemobiagraph of model TEST0512, setting The top outside the body of aircraft, for acquiring the flying speed of aircraft in real time；

The turbine flow transducer, the utility model use the liquid turbine flow sensor of model LWGY, if It sets on the perfusion tube of the unmanned plane medicine-chest, for acquiring application flow in real time.

The control display module includes operation display board, gsm communication module, cell phone application and a SCM system； The single-chip microcomputer input is connect with the signal acquisition component, and the single-chip microcomputer output and the operation are shown Plate, gsm communication module are connected with executive module；The signal that the single-chip microcontroller is used to obtain signal acquisition component integrates Processing carries out integrated treatment according to information such as flying height, flying speed and required spraying medicine concentrations, in conjunction with hierarchical control method, Export grading control signal, the corresponding angle of flow regulating valve.

Optionally, the operation display board, the utility model use 3.97 cun of full view IPS touch screens, the behaviour Make display board, carry out input and output with the P1.6 serial ports of the single-chip microcontroller and be bi-directionally connected, top outside the body of aircraft is set, It includes two parts that it, which is acted on: (1) input and adjusting flying height, flying speed, spraying medicine concentration information.(2) show flying height, The information such as flying speed, spraying medicine concentration and electromagnetic valve opening angle.The cell phone application passes through the gsm communication module It is bi-directionally connected with the single-chip microcontroller, acts on biconditional operation display board.

The gsm communication module, the utility model use the gsm communication module of model A9, the gsm communication mould Block carries out input and output with the single-chip microcontroller P1.7 serial ports and is bi-directionally connected, effect be information by 4G wireless network into The transmission of row remote signal.

The executive module includes amplifying circuit and ball electromagnetic valve.The amplifying circuit effect is the list The control signal amplification of piece machine output.

Optionally, the ball electromagnetic valve, the utility model use model ZB miniature electric ball valve, are arranged in medicine-chest Bottom is connect with flow sensor, and the control signal that can be exported according to the single-chip microcontroller adjusts opening angle.

Further technical solution, the amplifying circuit include resistance R1, R2, NPN type triode Q1, Q2, relay RL, double-point double-throw switch SW, fuse FU, power supply VCC.One end of the resistance R1 and the single-chip microcomputer output P1.1 Serial ports connection, the other end are connect with the base stage of the NPN type triode Q1.The collector of the NPN type triode Q1 accesses The power supply VCC, the transmitter of the NPN type triode Q1 are grounded after connecting with the left side coil of the relay RL. One end of the resistance R2 is connect with the single-chip microcomputer output P1.0 serial ports, the other end and the NPN type triode The base stage of Q2 connects.The collector access of the NPN type triode Q2 power supply VCC, the hair of the NPN type triode Q2 It penetrates after machine is connected with the right coil of the relay RL and is grounded.The binding post 1 and binding post 4 of the double-point double-throw switch SW The access power supply VCC, binding post 2 and binding post 3 are grounded.The ball valve both ends motor M are double respectively at the double-pole The double-pole of throw switch SW connects.

The effect of described resistance R1, R2 and fuse FU are protection circuits, prevent from damaging component because of overload.

The effect of NPN type triode Q1, Q2 be to single-chip microcontroller P1.0 and P1.1 serial ports output control signal into Row amplification, to drive the relay RL.When the base stage of the NPN type triode Q1 receives the single-chip microcontroller When the high level signal of P1.1 output, NPN type triode Q1 conducting, electric current can flow to emitter from collector at this time.When described The base stage of NPN type triode Q2 when receiving the high level signal of the single-chip microcontroller P1.0 output, NPN type triode Q2 is led Logical, electric current can flow to emitter from triode Q2 collector at this time.

Respectively there are two coil, effect is to adjust the double-point double-throw switch SW double-pole for the left and right of the relay RL Position.When the right coil is powered, coil generating electromagnetic field, the effect of the double-pole of the double-point double-throw switch SW in magnetic field force Under, it is connect with binding post 2 and binding post 4.Electric current is flowed out from the power supply VCC at this time, flows through fuse FU to binding post 4, Then ball valve motor M is flowed through from right to left, then flows out to power cathode from binding post 2.Ball valve motor M is rotated forward at this time, valve Door is opened.When left side coil is powered, coil generating electromagnetic field, the effect of the double-pole of the double-point double-throw switch SW in magnetic field force Under, it is connect with binding post 1 and binding post 3.Electric current is flowed out from the power supply VCC at this time, flows through fuse FU to binding post 1, Then ball valve motor M is flowed through from left to right, then flows out to power cathode from binding post 3.Ball valve motor M is inverted at this time, valve Door is closed.

Further technical solution, the ball-shape electromagnetic valve main component are ball valve motor M, and effect is by electronic The positive and negative rotation of machine M changes the opening angle of valve.When ball valve motor M is rotated forward, valve openings angle increases；When ball valve electricity When motivation M is inverted, valve openings angle reduces.

The hierarchical control method: determine flying height, flying speed and the spraying medicine concentration of unmanned plane to flow first The weighted value of valve openings size, when flying height, flying speed and spraying medicine concentration change, according to weighted value and grading control The corresponding angle of flow valve is adjusted by hierarchical control method weighted formula in list.

The weighted value can be used analytic hierarchy process (AHP) and be determined, and it is 0.3 that the corresponding weight of flying height, which can be obtained, fly The corresponding weight of scanning frequency degree is 0.3, and the corresponding weight of spraying medicine concentration is 0.4.

The grading control list, specific to determine that method is as follows: flying height when unmanned plane is normally administered operation exists In the range of 1m-5m, the range that flying speed is in the range of 4m/s-6m/s, spraying medicine concentration is at 500ml/ mus -1000ml/ mus Interior, application flow is in the range of 20ml/s-35ml/s.Therefore flying height, flying speed, spraying medicine concentration and flow valve Opening angle is all divided into 5 grades, such as table 1, shown in level control table (LCT).

Wherein, flying height (h) is less than or equal to be set as level-one height when 1.5m；Flying height (h) is greater than 1.5m, but is less than Second level height is set as when equal to 2.5m；Flying height (h) is greater than 2.5m, but is less than or equal to be set as three-level height when 3.5m；Flight Highly (h) is greater than 3.5m, but is less than or equal to be set as level Four height when 4.5m；Flying height (h) is set as Pyatyi height when being greater than 4.5m Degree.

Flying speed (v) is less than or equal to be set as first-order rate when 3m/s；Flying speed (v) is greater than 3m/s, but is less than or equal to Second order rate is set as when 4m/s；Flying speed (v) is greater than 4m/s, but is less than or equal to be set as three step velocitys when 5m/s；Flying speed (v) it is greater than 5m/s, but is less than or equal to be set as level Four height when 6m/s；Flying speed (v) is set as five step velocitys when being greater than 6m/s.

Spraying medicine concentration (c) is less than or equal to be set as first order concentration at 500ml/ mus；Spraying medicine concentration (c) be greater than 500ml/ mus, but Second order rate is set as when less than or equal to 650ml/ mus；Spraying medicine concentration (c) is greater than 650ml/ mus, but is less than or equal to set at 800ml/ mus For three step velocitys；Spraying medicine concentration (c) is greater than 800ml/ mus, but is less than or equal to be set as level Four height at 950ml/ mus；Spraying medicine concentration (c) five step velocitys are set as when being greater than 950ml/ mus.

Valve openings angle (α), since application flow is in the range of 20ml/s-35ml/s, and valve openings angle model 0 ° -90 ° are trapped among, therefore relationship can be converted into changes in flow rate range the variation range of valve openings angle in proportion, as 51 ° of 90 °/35ml/s*20ml/s ≈, therefore valve angle variation range can be set between 50 ° -90 °.That is valve openings angle It spends (α) and is more than or equal to 50 °, but less than 55 ° when is set as level-one angle；More than or equal to 55 °, but less than 65 ° when is set as second level angle； More than or equal to 65 °, but less than 75 ° when is set as three-level angle；More than or equal to 75 °, but less than 85 ° when is set as level Four angle；It is greater than Pyatyi angle is set as when equal to 85 °.Wherein level-one angle can specifically subdivide 5 grades, i.e., 1.5 grades -1.9 grades；Second level angle, Three-level angle, level Four angle can specifically subdivide 10 grades, i.e., 2.0 grades -2.9 grades, and 3.0 grades -3.9 grades, 4.0 grades -4.9 grades. Pyatyi angle can specifically subdivide 6 grades, i.e., 5.0 grades -5.5 grades.Such as table 2, shown in valve openings angle hierarchical subdivision table.

1 level control table (LCT) of table

2 valve openings angle hierarchical subdivision table of table

Shown in the following formula of hierarchical control method weighted formula (1):

Flying height grade * 0.3+ flying speed grade * 0.3+ spraying medicine concentration grade * 0.4=valve angle grade.(1)

The opening angle of electromagnetic valve is determined further according to the corresponding valve angle value of valve angle grade.Such as aircraft is in Level Four flying height, three-level flying speed, second level spraying medicine concentration, calculation formula 4*0.3+3*0.3+2*0.4=2.9, so Corresponding valve angle grade is 2.9 grades of angles, 64 ° of corresponding valve angle.

Unmanned plane application operation is carried out using the hierarchical control method in the utility model；

Prepare before flight: first returning to zero before take-off to sensor, guarantees the accuracy of multiple information acquisition.

Be administered operation: driver is defeated flying height, flying speed, spraying medicine concentration by operation display board or cell phone application Enter into system, system can determine electromagnetic valve opening angle according to hierarchical control method.After taking off, driver not only may be used Accurately to observe flying height, flying speed, spraying medicine concentration and the electricity of aircraft in real time by operation display board or cell phone application The information such as magnet valve door opening angle；The flight that driver can also regulate and control aircraft manually by operation display board or cell phone application is high Degree, flying speed, spraying medicine concentration, and then change electromagnetic valve opening angle.Driver can also directly be open to electromagnetic valve Angle is regulated and controled manually.

Application operation is being carried out to farmland, if flying height is 3m, flying speed 4.5m/s, spraying medicine concentration 700ml/ Mu.According to level control table (LCT): flying height is three-level height, and flying speed is three step velocitys, and spraying medicine concentration is that three-level is dense Degree.: 3*0.3+3*0.3+3*0.4=3 is obtained according to the weighted formula of hierarchical control method is to get valve openings angle grade 3.0 grades, then know that the corresponding opening angle of valve at this time is 65 ° by level control table (LCT).I.e. system can automatically control solenoid valve Door opens 65 ° of angle.

Single-chip microcontroller P1.0 serial ports exports high-level control signal at this time, and signal is by resistance R2 to the NPN type triode The base stage of Q2.NPN type triode Q2 base stage is connected after receiving high level signal, and current and power supply VCC flows out at this time, flows through insurance The collector of silk FU to triode Q2, then flows out to the coil on the right of relay RL from emitter.Line on the right of relay RL Circle generates electromagnetic field, and the double-pole of double-point double-throw switch SW is connect with binding post 2 and binding post 4 respectively.Electric current is from power supply at this time VCC outflow, flows through fuse FU to binding post 4, then flows through ball valve motor M from right to left, then flow out to electricity from binding post 2 Source cathode.Ball valve motor M is rotated forward at this time, and valve is opened, i.e., valve angle is gradually increased from 0 °.Pulse-width modulation method is quasi- Really control ball valve motor M working time, and then precision control valve door opening angle, when electromagnetic valve reaches 65 ° of angle, Single-chip microcontroller P1.0 serial ports exports low level control signal, and the voltage of NPN type triode Q2 base stage is low level signal at this time, due to Brownout, NPN type triode Q2 cut-off, then pass through, and then relay RL does not work without electric current, double-point double-throw switch SW's Double-pole, so motor stops working, makes valve openings angle maintain 65 ° for vacant state, not any binding post connection It is constant.

When encountering the barrier for needing to cross, need to improve flying height to clear the jumps, at this time flying height Increase, system can be automatically increased corresponding electromagnetic valve opening angle, according to hierarchical control method to keep unit area Formulation rate is constant.Such as flying height has increases to 5m by 3m, flying speed keeps 4.5m/s constant, and spraying medicine concentration is kept 700ml/ mus constant.According to level control table (LCT): flying height is risen to by three-level height as Pyatyi height, flying speed three Step velocity, spraying medicine concentration are three-level concentration.It is obtained according to the weighted formula of hierarchical control method: 5*0.3+3*0.3+3*0.4= 3.6 to get valve openings angle grade be 3.6 grades, then is by the corresponding opening angle of valve known to level control table (LCT) at this time 71°.I.e. system can automatically control the angle that electromagnetic valve opens 71 °.Just with reason control single chip computer control ball valve motor M Turn, electromagnetic valve opening angle is made to increase to 71 °, then controls ball valve motor M and stop working, maintain valve openings angle It is constant at 71 °.

If barrier is higher, such as trees, electric pole etc., then need to reduce flight height and flying speed, so as to safety Avoiding obstacles.At this time because reducing flying height and flying speed, system can automatically adjust phase according to hierarchical control method The electrical measurement valve openings angle answered, to keep the formulation rate of unit area constant.Such as flying height has and is reduced to 1m by 3m, Flying speed is reduced to 3m/s by 4.5m/s, and 700ml/ mus of spraying medicine concentration holding is constant.According to level control table (LCT): flight is high It is that three step velocitys are reduced to as first-order rate, spraying medicine concentration three that degree, which reduces most level-one height, flying speed by three-level height, Grade concentration.Obtained according to the weighted formula of hierarchical control method: 1*0.3+1*0.3+3*0.4=1.8 is to get valve openings angle etc. Grade is 1.8 grades, then the corresponding opening angle of valve known to level control table (LCT) at this time is 53 °.I.e. system can automatically control electricity Magnet valve door opens 53 ° of angle.

Single-chip microcontroller P1.1 serial ports exports high-level control signal at this time, and signal is by resistance R1 to the NPN type triode The base stage of Q1.NPN type triode Q1 base stage is connected after receiving high level signal, and current and power supply VCC flows out at this time, flows through insurance The collector of silk FU to triode Q1, then flows out to the coil on the left side relay RL from emitter.The line on the left side relay RL Circle generates electromagnetic field, and the double-pole of double-point double-throw switch SW is connect with binding post 1 and binding post 3 respectively.Electric current is from power supply at this time VCC outflow, flows through fuse FU to binding post 1, then flows through ball valve motor M from left to right, then flow out to electricity from binding post 3 Source cathode.Ball valve motor M is inverted at this time, is gradually reduced valve angle.When electromagnetic valve angle is reduced to 53 °, monolithic Machine P1.1 serial ports exports low level control signal, and the voltage of NPN type triode Q1 base stage is low level signal at this time, due to voltage Too low, NPN type triode Q1 cut-off, then without electric current by NPN type triode Q1, and then relay RL does not work, and double-pole is double The double-pole of throw switch SW, so motor stops working, makes valve openings angle for vacant state, not any binding post connection Maintain 53 ° it is constant.

When the situation that a certain region crops are luxuriant among to farmland or pest and disease damage is more carries out plant protection operation, need to mention High spraying medicine concentration, to guarantee preferable pesticide supplying effect.Such as flying height keeps 3m constant, scanning frequency degree keeps 4.5m/s constant, It is 1000ml/ mus that spraying medicine concentration is risen to by 700ml/ mus.According to level control table (LCT): flying height position three-level height, flight Speed is three step velocitys, and spraying medicine concentration is risen to by three-level concentration as Pyatyi concentration.It is obtained according to the weighted formula of hierarchical control method: 3*0.3+3*0.3+5*0.4=3.8 being 3.8 grades to get valve openings angle grade, then the valve known to level control table (LCT) at this time The corresponding opening angle of door is 73 °.I.e. system can automatically control the angle that electromagnetic valve opens 73 °.With reason control single chip computer It controls ball valve motor M to rotate forward, electromagnetic valve opening angle is made to increase to 71 °, then control ball valve motor M and stop working, Make valve openings angle maintain 71 ° it is constant.

Control process driver, which may be selected to automatically control also, may be selected regulation manually.System can be application feelings after the completion of application Condition is shown to driver's observation in a manner of data information, reaches quantization pesticide supplying effect, realizes variable farm chemical applying, reaches uniform application Purpose.

Claims (4)

1. a kind of unmanned plane variable farm chemical applying control device, including executive module, it is characterised in that: the executive module includes being used for Ball electromagnetic valve, the amplifying circuit for controlling the folding of ball electromagnetic valve for controlling unmanned plane medicine-chest opening angle；Ball electromagnetic Valve and ball electromagnetic valve connection；The ball electromagnetic valve includes for controlling the medicine-chest valve of medicine-chest grug transportation tube flow, using In the ball valve motor of control medicine-chest valve openings angle, ball valve motor is connect by route with amplifying circuit；The amplification Circuit includes resistance R1, resistance R2, NPN type triode Q1, NPN type triode Q2, relay RL, double-point double-throw switch SW, electricity Source VCC；One end of the resistance R1 is connect with the base stage of NPN type triode Q1, the collector and power supply of NPN type triode Q1 VCC is electrically connected, and the transmitting collection of NPN type triode Q1 is connect with after the series connection of the left side coil of relay RL with ground wire；Resistance R2 One end connect with the base stage of NPN type triode Q2, the collector of NPN type triode Q2 and power supply VCC are electrically connected, NPN type The transmitting collection of triode Q2 is connect with after the series connection of the right coil of relay RL with ground wire；The other end point of resistance R1, resistance R2 It is not electrically connected with signal output end；The first binding post and the 4th binding post and power supply the VCC electricity of the double-point double-throw switch SW Property connection, the second binding post and third binding post are connect with ground wire；The double-pole of double-point double-throw switch SW respectively with ball valve motor Both ends connection.

2. unmanned plane variable farm chemical applying control device as described in claim 1, it is characterised in that: the unmanned plane variable farm chemical applying control Device processed further includes information collection component, control assembly, and information collection component passes through control assembly and executive module connection； The information collection component includes the pressure-altitude sensor being arranged in unmanned plane cabinet, is arranged and pushes up on the outside of unmanned plane body The airspeed transducer in portion, the turbine flow transducer being arranged on unmanned plane medicine-chest grug transportation tube；The control assembly includes Single-chip microcontroller；The input terminal serial ports of single-chip microcontroller is separately connected pressure-altitude sensor, airspeed transducer, turbine flow transducer Signal output end；The signal output serial ports of single-chip microcontroller is electrically connected with resistance R1, the resistance R2 in amplifying circuit respectively.

3. unmanned plane variable farm chemical applying control device as claimed in claim 2, it is characterised in that: the control assembly further includes behaviour Make display board, top and the two-way company of input and output serial ports with single-chip microcontroller outside the body of aircraft is arranged in the operation display board It connects.

4. the unmanned plane variable farm chemical applying control device as described in Claims 2 or 3 is any, it is characterised in that: the control assembly It further include gsm communication module, cell phone application；The input and output serial ports of the gsm communication module and single-chip microcontroller is bi-directionally connected, and GSM is logical Believe that module and cell phone application are wirelessly connected.