CN106614473A - Direct injection type real-time concentration variation on-line pesticidesmixing spraying device and control method thereof - Google Patents
Direct injection type real-time concentration variation on-line pesticidesmixing spraying device and control method thereof Download PDFInfo
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- CN106614473A CN106614473A CN201611020511.5A CN201611020511A CN106614473A CN 106614473 A CN106614473 A CN 106614473A CN 201611020511 A CN201611020511 A CN 201611020511A CN 106614473 A CN106614473 A CN 106614473A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0025—Mechanical sprayers
- A01M7/0032—Pressure sprayers
- A01M7/0042—Field sprayers, e.g. self-propelled, drawn or tractor-mounted
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0089—Regulating or controlling systems
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
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- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- Catching Or Destruction (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The invention relates to a direct injection type real-time concentration variation on-line pesticidesmixing spraying device. The device comprises a water supply through-line module, a precision amount pesticide supply through-line module, a pesticide mixing applying module and a control module. The water supply through-line module and the precision amount pesticide supply through-line module are both connected with the pesticide mixing applying module. The control module is connected with the water supply through-line module to collect the flow and pressure signals of the water supply through-line module. The control module is connected with the precision amount pesticide supply through-line module to control the amount of the pesticides entering the pesticides mixing applying module based on the flow, pressure and the pesticide mixing ratio of the water supply through-line module. Water and pesticides are mixed in the pesticide mixing applying module, and sprayed out in time. The invention further relates to a control method for the direct injection type real-time concentration variation on-line pesticidesmixing spraying device. In the applying process, the injection amount of a variety of pesticides is controlled in a real-time mode, and the injected pesticides are mixed uniformly online. The device can be installed on any pre-mixing spraying machine, and has a simple and reliable structure.
Description
Technical field
The present invention relates to intelligent agricultural machinery technical field of plant protection machinery, the real-time Variable Composition of more particularly to a kind of direct injection exists
The variable-rate spraying device and its control method of the mixed medicine of line.
Background technology
Diseases and pests of agronomic crop is the staple crops disaster of China, with species it is many, affect big, easily outburst the spy such as to cause disaster
Point, if the national economy that not in time prevention and management can be to China, especially agricultural production cause heavy losses.Therefore
Strengthen crops field management, be the important measures for building high and stable yields farmland.The prevention and management of field crops pest and disease damage,
To crops grow and yield effect is very big.At present, the policy of the plant protection work of China is " to put prevention first, comprehensively prevent
Control ", this is the summary of experience that China working people struggles for a long time with diseases and pests of agronomic crop.Chemical pesticide is suppressing pest and disease damage
Also occur in that many problems simultaneously：Such as the residual of agricultural chemicals, the unreasonable caused resource wave of environment and Pesticide use is polluted
Take.At present mainly by the way of traditional premix, i.e., agricultural chemicals and water are sprayed again country's equipment for plant protection after stirring in medicine-chest
Apply.But this mixed prescription method cannot realize variable rate spray, it is impossible to change existing spraying machine and waste agricultural chemicals, pollution environment and mixing matter
The not high shortcoming of amount.
In the prior art, applicant does not have found to mix medicine sprayer unit online using the real-time Variable Composition of direct injection.It is right
Discovery when the existing patent of analogous technical enters line retrieval, a kind of patent " agricultural chemicals mixer with variable atomization " (application number
200820047346.7) flow of liquid is controlled using flowmeter and flow control valve, it is relatively costly；Patent is " a kind of automatically mixed
The variable-rate spraying device of medicine " (application number：201320285621.X) automatic variable spraying is realized, self-priming medicine mixer is arranged on dynamic
On pipeline between power pump and spray boom, the mixed medicine for having certain hour postpones.According to experimental study, in Teat pipette exit, mixed medicine postpones
Time about 10s, at spray boom front end mix medicine time delay be about 2s, illustrate mix medicine position from shower nozzle more close to its real-time it is better.
Therefore, at present online medicament-mixing device is limited to that medicinal liquid flow detection technique, mixed medicine postpone and the aspect such as adaptability is difficult to meet city
Field demand.
The content of the invention
For technical problem present in prior art, the purpose of the present invention is：There is provided a kind of direct injection to become in real time
Concentration mixes online the variable-rate spraying device and its control method of medicine, can be directly injected into mixed medicine, and changes spraying concentration in real time.It is fitted
It is for Modern Agricultural Machine and simple and reliable for structure, it is adaptable to various spraying machines.Can ensure that spray machinery in operation process
The uniform mixing of water medicine is completed, medicine is mixed under high pressure working condition, low cost, the response time is fast, and real-time is good, and can
Realize the mixed medicine ratio of large range of real-time regulation.
In order to achieve the above object, the present invention is adopted the following technical scheme that：
A kind of real-time Variable Composition of direct injection mixes online medicine sprayer unit, including water supply channel module, essence amount are logical for medicine
Road module, mixed medicine spray module, control module；Water supply channel module and essence amount spray module with mixed medicine respectively for medicine channel module
Connect；Control module and water supply channel module connect to gathering the flow and pressure signal of water supply channel module；Control module and
Essence amount connects for medicine channel module, to enter mixed medicine and spray according to the flow and pressure of water supply channel module, mixed medicine ratio control
The dose of module；Water and medicine spray module mixing and spray in time in mixed medicine.
Water supply channel module includes pressure sensor A and the water tank, filter, plunger displacement pump A, the excess flow tune that connect successively
Section valve, flowmeter and check valve A, check valve A access mixed medicine and spray module, and the pressure sensor A electrically connected with control module connects
Enter between excess flow regulating valve and flowmeter；Essence amount for medicine channel module include pressure sensor B and connect successively medicine-chest,
Essence amount plunger displacement pump B and check valve B, check valve B access mixed medicine and spray module, and the pressure sensor B electrically connected with control module connects
Enter medicine-chest, essence amount plunger displacement pump B connects with control module.After this structure, water tank is used for individually storage water, plunger displacement pump A from
Draw water in water tank, to adapt to different work requirement, pressure sensor A is examined for excess flow regulating valve adjustable spraying pressure and spray amount
The water pressure surveyed in water supply channel module, the discharge in flowmeter detection water supply channel module, check valve A prevents liquid from flowing backwards
To aqua region.Medicine-chest stores liquid, and the liquid pressure of pressure sensor B detection medicine-chests bottom, essence amount plunger displacement pump B pressurizes liquid
Afterwards module injection is sprayed in mixed medicine, check valve B prevents other liquids and aqueous reflux.Essence amount can simultaneously using many for medicine channel module
Road (such as three tunnels) is for medicine to meet multiple-medicinal-liquid while the job requirements for spraying.Essence amount need not install price for medicine channel module
High small flowmeter is capable of achieving real-time Variable Composition and mixes medicine spraying online.
The real-time Variable Composition of direct injection mixes online medicine sprayer unit and is arranged on agricultural machinery car body, plunger displacement pump A and agriculture
The power set connection of industry machinery car body, is driven by the power set, and for spraying power is provided.
Mixed medicine sprays module including spray boom, medicine mixer and shower nozzle；Water pipe and pencil are provided with spray boom, water pipe will be for water passage
Module and medicine mixer connect, and pencil is connected essence amount with medicine mixer for medicine channel module, and medicine mixer connects with shower nozzle.Using this
After structure, the water and liquid Jing shower nozzles after impingement mix in medicine mixer form droplet and spray to above object.Medicine mixer is preferred
The mixed medicine structure of the efficient short distance of employing, and close to shower nozzle, concentration realtime control is good.
The quantity of medicine mixer is multiple, and a medicine mixer installs a shower nozzle；Each medicine mixer access pencil in parallel, and and
The access water pipe of connection.
Essence amount is multigroup for the quantity of medicine channel module, and each group is parallel with one another, and the quantity of pencil supplies medicine path mould with essence amount
The group number of block, and a pencil accesses one group of essence amount for medicine channel module；Each pencil access each medicine mixer in parallel.
Water inlet and feeding opening are respectively equipped with the middle of water pipe and pencil in spray boom, respectively with water supply channel module delivery port
With essence amount for the connection of medicine channel module, pencil and water pipe be provided with it is multigroup be distributed uniform medicine outlet and delivery port, and respectively with it is right
The feeding opening and water inlet for answering medicine mixer connects, and the feeding opening on a medicine mixer is equally distributed on same vertical direction；It is mixed
Medicine device does not have self-suction function.After this structure, water and agricultural chemicals inject spray boom internal pipeline in spray boom centre position.Uniform cloth
Putting can ensure the uniformity of water and medicine proportioning in medicine mixer, improve the uniformity that each shower nozzle sprays liquid.Agricultural chemicals injection pressure
Power ensures the quantitative mixing of agricultural chemicals and water more than hydraulic pressure.
Control module includes controller and display, flowmeter, pressure sensor A, pressure sensor B, essence amount plunger displacement pump B
It is connected with controller；Display for input and display parameters connects with controller.After using this structure, controller is adopted
Pressure sensor B signals of the pressure sensor A and flow meter signal and essence amount of collection water supply channel module for medicine channel module；
Medicinal liquid flow according to needed for supply channel hydraulic pressure and flow value and mixed medicine ratio calculate current time, by drive control
Essence amount pumps out a certain amount of liquid for the essence amount plunger displacement pump B of medicine channel module.Display is used to set pesticide variety, correspondence medicine-chest
The parameter such as numbering and spraying concentration and display pressure of supply water are believed with flow, for dose, medicine-chest dose, actual spraying concentration etc.
Breath.
The overflow passage of excess flow regulating valve connects with water tank；Essence amount plunger displacement pump B controls rotating speed and changes by control module
Become pump dose, and have the actual speed of Hall element Real-time Feedback essence amount plunger displacement pump B, it is ensured that liquid injection is accurate.
A kind of real-time Variable Composition of direct injection mixes online the control method of medicine sprayer unit, real-time using direct injection
Variable Composition mixes online medicine sprayer unit, comprises the steps：
S1, by display |input paramete, including pesticide variety, correspondence medicine-chest numbering and spraying concentration；
Pressure sensor A and flow meter signal in S2, controller collection water supply channel module, obtains water supply line current
Pressure x and water flow Q；
S3, controller collection essence amount obtain medicine-chest liquid pressure y, by pressing for the pressure sensor B signal of medicine channel module
Power volume-based model v=f (y) is calculated the residual volume v of medicine-chest Chinese medicine liquid；
S4, controller are counted according to the spraying concentration of water flow Q, water flow pressure x and user setting in water supply channel module
Amount of liquid medicine required for calculating current time, by the relation mould of the rotating speed n, water flow pressure x and medicinal liquid flow q of essence amount plunger displacement pump B
Type q=f (x, n) calculates the rotating speed n required for essence amount plunger displacement pump B；
The motor speed n of S5, controller output drive signal control essence amount plunger displacement pump B, is examined in real time using Hall element
The motor speed N of essence amount plunger displacement pump B is surveyed, and closed-loop control is formed with controller；
S6, formulation rate are input into controller by prescription map or real time sensor, and controller calculates mixed concentration and passes through again
Essence amount plunger displacement pump B pumps out liquid；
S7, real-time medicinal liquid flow q=f (x, N) is calculated according to rotating speed N, pressure x, medicinal liquid flow q models, in real time spray
Concentration C=q/Q, liquid residual volume v=f (y)；
S8, current water flow pressure x, water flow Q, liquid residual volume v, medicinal liquid flow q and real-time spraying concentration C are aobvious
Show in device and show；
S9, plunger displacement pump A and essence amount plunger displacement pump B extract all the time water and liquid from water tank and medicine-chest, and water and liquid injection are mixed
Medicine device, quick washing is sprayed after being well mixed by shower nozzle in medicine mixer.
Generally speaking, the invention has the advantages that：
1st, the real-time Variable Composition of direct injection of the invention mixes online medicine sprayer unit, and water supply channel module is by agricultural machinery
Car body (such as tractor machines) provides power, you can installs additional on existing spraying machine spraying system and forms, and may be mounted at and appoints
On a premixed spraying machine, low cost, applicable existing market main product.
2nd, the real-time Variable Composition of direct injection of the invention mixes online medicine sprayer unit, and by essence amount plunger displacement pump B medicine is realized
Liquid accurately injects, without the need for high pressure high accuracy liquid Minor flow sensor, it is ensured that reduces while the stability of a system and is
System cost.
3rd, the real-time Variable Composition of direct injection of the invention mixes online medicine sprayer unit, by from the nearest position of shower nozzle
Liquid is directly injected in current, Jing shower nozzles atomization immediately after being well mixed is sprayed to target top, water and one or more liquids
On-line mixing, and concentration control response is fast, real-time is good, realizes real-time Variable Composition spraying, meets variable and sprays demand.
4. simple and reliable for structure, medicine and water are individually stored, and the injection rate of real-time control Multiple Pesticides is simultaneously during spraying
On-line mixing is uniform.
Description of the drawings
Fig. 1 is the structure principle chart of the present invention.
Fig. 2 is that in Fig. 1, mixed medicine sprays the partial enlarged drawing of module.
Wherein, 1- water tanks, 2- filters, 3- displays, 4- plunger displacement pump A, 5- controllers, 6- excess flow regulating valves, 7-
Medicine-chest, 8- pressure sensor B, 9- check valves A, 10- essence amount plunger displacement pump B, 11- pressure sensor A, 12- check valve B, 13- flow
Meter, 14- medicine mixers, 15- shower nozzles, 16- spray booms.A is water inlet, and b1, b2, b3 are feeding opening, and c is mixture export.
Specific embodiment
Come that the present invention will be further described in detail below.
A kind of real-time Variable Composition of direct injection mixes online medicine sprayer unit, including water supply channel module, essence amount are logical for medicine
Road module, mixed medicine spray module, control module.The present embodiment is to apply the present invention to high-clearance sprayer JKB18C, is constituted
The online spraying system of high-clearance, atomisation pressure is 1-2.5Mpa.Wherein, water tank, filter, excess flow regulating valve, shower nozzle, post
Plug pump A is the original configuration of spraying machine, and plunger displacement pump A drives other for present invention assembling by power plants of spraying.
Water supply channel module includes pressure sensor A and the water tank, filter, plunger displacement pump A, the excess flow tune that connect successively
Section valve, flowmeter and check valve A, check valve A access the water pipe that mixed medicine is sprayed in the spray boom of module, the controller with control module
The pressure sensor A of electrical connection is accessed between excess flow regulating valve and flowmeter, detects the hydraulic pressure of water supply channel module.Overflow
The overflow passage of flow control valve connects with water tank, so as to unnecessary water is back to water tank.
Medicine-chest, essence amount plunger displacement pump B and check valve B that essence amount includes pressure sensor B and connects successively for medicine channel module,
Check valve B accesses the pencil that mixed medicine is sprayed in the spray boom of module, and the pressure sensor B electrically connected with the controller of control module connects
Enter medicine-chest, essence amount plunger displacement pump B connects with the controller of control module.Essence amount in the present embodiment has three groups for medicine channel module,
It is mutually juxtaposed, three pressure sensor B and three essences measure plunger displacement pump B parallel connection access controllers；Three check valve B are each accessed
A piece pencil.To three medicine-chest numberings, correspondence adds three kinds of agricultural chemicals, by controller dose is controlled out, and to dose proportioning is carried out.This
In embodiment, essence amount plunger displacement pump B type selectings are TRS series rotary ceramic plunger displacement pumps.
Mixed medicine sprays module including spray boom, medicine mixer and shower nozzle.A water pipe and three pencils are provided with spray boom, water pipe will
Water supply channel module and medicine mixer connect, and pencil is connected essence amount with medicine mixer for medicine channel module, and medicine mixer connects with shower nozzle
And correspond.Spray boom is provided with multiple equally distributed delivery ports and multiple equally distributed medicine outlets, and delivery port is water pipe
One end, medicine outlet for pencil one end；Each medicine mixer is equipped with three feeding openings, and these three feeding openings are equally distributed on together
On one vertical direction；Medicine mixer does not have self-suction function.In the present embodiment, the quantity of medicine mixer and shower nozzle is eight, and eight are mixed
Medicine device every pencil of access in parallel, and the access water pipe of parallel connection.This connected mode being evenly arranged, it is ensured that medicine mixes
Uniformly, uniform spraying.Liquid and water uniformly mix in medicine mixer, discharge in the mixture export of medicine mixer, timely Jing shower nozzles
Spray.In the present embodiment, medicine mixer type selecting is SK type static mixers.
Control module includes controller and display, flowmeter, pressure sensor A, pressure sensor B, essence amount plunger displacement pump B
It is connected with controller, the data of Real-time Feedback monitoring, while essence amount plunger displacement pump B controls rotating speed by controller changes pump medicine
Amount, and have the actual speed of Hall element Real-time Feedback essence amount plunger displacement pump B, it is ensured that liquid injection is accurate.For being input into and showing
The display for showing parameter connects with controller.
A kind of real-time Variable Composition of direct injection mixes online the control method of medicine sprayer unit, real-time using direct injection
Variable Composition mixes online medicine sprayer unit, comprises the steps：
S1, by display |input paramete, including the information such as pesticide variety, correspondence medicine-chest numbering and spraying concentration；
Pressure sensor A and flow meter signal in S2, controller collection water supply channel module, obtains water supply line current
Pressure x and water flow Q；
S3, controller collection essence amount obtain medicine-chest liquid pressure y, by pressing for the pressure sensor B signal of medicine channel module
Power volume-based model v=f (y) is calculated the residual volume v of medicine-chest Chinese medicine liquid；
S4, controller are counted according to the spraying concentration of water flow Q, water flow pressure x and user setting in water supply channel module
Amount of liquid medicine required for calculating current time, by the relation mould of the rotating speed n, water flow pressure x and medicinal liquid flow q of essence amount plunger displacement pump B
Type q=f (x, n) calculates the rotating speed n required for essence amount plunger displacement pump B；
The motor speed n of S5, controller output drive signal control essence amount plunger displacement pump B, is examined in real time using Hall element
The motor speed N of essence amount plunger displacement pump B is surveyed, and closed-loop control is formed with controller；
S6, formulation rate are input into controller by prescription map or real time sensor, and controller calculates mixed concentration and passes through again
Essence amount plunger displacement pump B pumps out liquid；In the step, " formulation rate is input into controller, controller meter by prescription map or real time sensor
Calculate mixed concentration " it is prior art；
S7, real-time medicinal liquid flow q=f (x, N) is calculated according to rotating speed N, pressure x, medicinal liquid flow q models, in real time spray
Concentration C=q/Q, liquid residual volume v=f (y)；
S8, current water flow pressure x, water flow Q, liquid residual volume v, medicinal liquid flow q and real-time spraying concentration C are aobvious
Show in device and show；
S9, plunger displacement pump A and essence amount plunger displacement pump B extract all the time water and liquid from water tank and medicine-chest, and water and liquid injection are mixed
Medicine device, quick washing is sprayed after being well mixed by shower nozzle in medicine mixer.
In addition to the mode that the present embodiment is referred to, essence amount can basis for the quantity of medicine channel module, medicine mixer and shower nozzle
It is actually needed selection.These mapping modes are within the scope of the present invention.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention not by above-described embodiment
Limit, other any Spirit Essences without departing from the present invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of real-time Variable Composition of direct injection mixes online medicine sprayer unit, it is characterised in that：Including water supply channel module, essence
Amount sprays module, control module for medicine channel module, mixed medicine；Water supply channel module and essence amount for medicine channel module respectively with mixed medicine
Spray module to connect；Control module and water supply channel module connect to gathering the flow and pressure signal of water supply channel module；Control
Molding block and essence amount connect for medicine channel module, to be entered according to the flow and pressure of water supply channel module, mixed medicine ratio control
Mixed medicine sprays the dose of module；Water and medicine spray module mixing and spray in time in mixed medicine.
2. medicine sprayer unit is mixed online according to a kind of direct injection real-time Variable Composition described in claim 1, it is characterised in that：
Water supply channel module includes pressure sensor A and the water tank, filter, plunger displacement pump A, excess flow regulating valve, the stream that connect successively
Gauge and check valve A, check valve A accesses mixed medicine and sprays module, and the pressure sensor A electrically connected with control module accesses overflow stream
Between adjustable valve and flowmeter；Medicine-chest, essence amount plunger that essence amount includes pressure sensor B and connects successively for medicine channel module
Pump B and check valve B, check valve B access mixed medicine and spray module, and the pressure sensor B electrically connected with control module accesses medicine-chest, essence
Amount plunger displacement pump B connects with control module.
3. medicine sprayer unit is mixed online according to a kind of direct injection real-time Variable Composition described in claim 2, it is characterised in that：
The real-time Variable Composition of direct injection mixes online medicine sprayer unit and is arranged on agricultural machinery car body, plunger displacement pump A and agricultural machinery car
The power set connection of body, is driven by the power set.
4. medicine sprayer unit is mixed online according to a kind of direct injection real-time Variable Composition described in claim 1, it is characterised in that：
Mixed medicine sprays module including spray boom, medicine mixer and shower nozzle；Water pipe and pencil are provided with spray boom, water pipe is by water supply channel module and mixes
Medicine device connects, and pencil is connected essence amount with medicine mixer for medicine channel module, and medicine mixer connects with shower nozzle.
5. medicine sprayer unit is mixed online according to a kind of direct injection real-time Variable Composition described in claim 4, it is characterised in that：
The quantity of medicine mixer is multiple, and a medicine mixer installs a shower nozzle；Each medicine mixer is in parallel to access pencil, and access water in parallel
Pipe.
6. medicine sprayer unit is mixed online according to a kind of direct injection real-time Variable Composition described in claim 5, it is characterised in that：
It is multigroup that essence amount supplies the quantity of medicine channel module, and each group is parallel with one another, and quantity and the essence amount of pencil supply the group number of medicine channel module
It is identical, and a pencil accesses one group of essence amount for medicine channel module；Each pencil access each medicine mixer in parallel.
7. medicine sprayer unit is mixed online according to a kind of direct injection real-time Variable Composition described in claim 6, it is characterised in that：
Water inlet and feeding opening are respectively equipped with the middle of water pipe and pencil in spray boom, are supplied with water supply channel module delivery port and essence amount respectively
Medicine channel module connects, and pencil and water pipe are provided with the uniform medicine outlet of multigroup distribution and delivery port, and respectively with corresponding medicine mixer
Feeding opening and water inlet connect, the feeding opening on a medicine mixer is equally distributed on same vertical direction；Medicine mixer does not have
Self-suction function.
8. medicine sprayer unit is mixed online according to a kind of direct injection real-time Variable Composition described in claim 2, it is characterised in that：
Control module includes controller and display, flowmeter, pressure sensor A, pressure sensor B, essence amount plunger displacement pump B with control
Device connects；Display for input and display parameters connects with controller.
9. medicine sprayer unit is mixed online according to a kind of direct injection real-time Variable Composition described in claim 2, it is characterised in that：
The overflow passage of excess flow regulating valve connects with water tank；Essence amount plunger displacement pump B controls rotating speed and changes pump dose by control module,
And having Hall element Real-time Feedback essence to measure the actual speed of plunger displacement pump B, it is ensured that liquid injection is accurate.
10. a kind of real-time Variable Composition of direct injection mixes online the control method of medicine sprayer unit, and usage right is required in 1 to 9
The real-time Variable Composition of direct injection described in any one mixes online medicine sprayer unit, it is characterised in that：Comprise the steps：
S1, by display |input paramete, including pesticide variety, correspondence medicine-chest numbering and spraying concentration；
Pressure sensor A and flow meter signal in S2, controller collection water supply channel module, obtains water supply line water flow pressure
X and water flow Q；
S3, controller collection essence amount obtain medicine-chest liquid pressure y, by pressure body for the pressure sensor B signal of medicine channel module
Product module type v=f (y) is calculated the residual volume v of medicine-chest Chinese medicine liquid；
S4, controller are calculated according to the spraying concentration of water flow Q, water flow pressure x and user setting in water supply channel module
Amount of liquid medicine required for current time, by the relational model q=of the rotating speed n, water flow pressure x and medicinal liquid flow q of essence amount plunger displacement pump B
F (x, n) calculates the rotating speed n required for essence amount plunger displacement pump B；
The motor speed n of S5, controller output drive signal control essence amount plunger displacement pump B, using Hall element real-time detection essence
The motor speed N of amount plunger displacement pump B, and form closed-loop control with controller；
S6, formulation rate are input into controller by prescription map or real time sensor, and controller calculates mixed concentration again by essence amount
Plunger displacement pump B pumps out liquid；
S7, real-time medicinal liquid flow q=f (x, N) is calculated according to rotating speed N, pressure x, medicinal liquid flow q models, sprayed in real time dense
Degree C=q/Q, liquid residual volume v=f (y)；
S8, current water flow pressure x, water flow Q, liquid residual volume v, medicinal liquid flow q and real-time spraying concentration C are in display
Middle display；
S9, plunger displacement pump A and essence amount plunger displacement pump B extract all the time water and liquid, water and liquid injection medicine mixer from water tank and medicine-chest,
Quick washing is sprayed after being well mixed by shower nozzle in medicine mixer.
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| CN201611020511.5A CN106614473B (en) | 2016-11-21 | 2016-11-21 | A kind of real-time Variable Composition of direct injection mixes medicine spraying device and its control method online |
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| CN107047519A (en) * | 2017-06-15 | 2017-08-18 | 湖南美奕机电科技有限公司 | Pesticide spray truck |
| CN107422701A (en) * | 2017-05-23 | 2017-12-01 | 江苏大学 | A kind of PWM variable farm chemical applying machines job state online evaluation and optimization system |
| CN107743937A (en) * | 2017-09-22 | 2018-03-02 | 江苏大学 | It is a kind of to preengage chemicals dosing plant on demand and method for the autonomous spraying machine in greenhouse |
| CN108450443A (en) * | 2018-03-06 | 2018-08-28 | 山东省农业科学院玉米研究所（山东省农业科学院玉米工程技术研究中心） | Device with the uniform spray structure of pesticide |
| CN109173761A (en) * | 2018-10-30 | 2019-01-11 | 湖南农业大学 | Based on the pouring-in online medicament-mixing device of minute-pressure and mixed prescription method |
| CN109224904A (en) * | 2018-10-30 | 2019-01-18 | 湖南农业大学 | Medicament-mixing device and mixed prescription method based on Multi-point jetting type |
| CN109907029A (en) * | 2019-03-15 | 2019-06-21 | 湖南福德电气有限公司 | A kind of spraying system |
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| CN113260254B (en) * | 2019-03-01 | 2023-08-22 | 精密种植有限责任公司 | agricultural spraying system |
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