CN110687912A - Liquid fertilizer field fertilizer distributor based on big data analysis - Google Patents
Liquid fertilizer field fertilizer distributor based on big data analysis Download PDFInfo
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- 239000003337 fertilizer Substances 0.000 title claims abstract description 197
- 239000007788 liquid Substances 0.000 title claims abstract description 187
- 238000007405 data analysis Methods 0.000 title claims abstract description 28
- 239000002689 soil Substances 0.000 claims abstract description 45
- 239000000575 pesticide Substances 0.000 claims abstract description 32
- 238000005507 spraying Methods 0.000 claims abstract description 32
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 210000003608 fece Anatomy 0.000 claims description 8
- 239000010871 livestock manure Substances 0.000 claims description 8
- 239000003814 drug Substances 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000004720 fertilization Effects 0.000 description 13
- 230000006872 improvement Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0255—Control of position or course in two dimensions specially adapted to land vehicles using acoustic signals, e.g. ultra-sonic singals
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/007—Metering or regulating systems
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/04—Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
- A01C23/047—Spraying of liquid fertilisers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0212—Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory
- G05D1/0223—Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory involving speed control of the vehicle
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- Environmental Sciences (AREA)
- Acoustics & Sound (AREA)
- Soil Sciences (AREA)
- Water Supply & Treatment (AREA)
- Aviation & Aerospace Engineering (AREA)
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Abstract
The invention discloses a liquid fertilizer field fertilizer applicator based on big data analysis, which comprises a liquid fertilizer storage tank, a traveling crane and a control system, wherein the liquid fertilizer storage tank is provided with a fertilizer filler for fertilizing a region to be fertilized, the traveling crane carries the liquid fertilizer storage tank to travel in the region to be fertilized, and the control system controls the liquid fertilizer field fertilizer applicator to perform pesticide spraying operation. The control system is provided with a database based on big data analysis, the database obtains the same soil property coefficient, the same crop coefficient and the ideal parameter set under different liquid levels through the big data analysis, so that corresponding operation parameters can be directly selected according to the soil property coefficient and the crop coefficient, other parameter values can be automatically matched according to different liquid levels, and meanwhile, the database of the fertilizer distributor is continuously updated through the newly generated spraying operation parameter set, so that the ideal speed, the opening and closing degree of the first ideal electric ball valve and the opening and closing degree of the second ideal electric ball valve of the fertilizer distributor under different liquid levels are more and more reasonable, and a self-adaptive function is realized.
Description
Technical Field
The invention relates to a fertilizer applicator in the field of agricultural equipment, in particular to a liquid fertilizer field fertilizer applicator based on big data analysis.
Background
China is a big agricultural country, a fertilization technology plays an important role in the growth of crops, the fertilization technology is developed from manual fertilization to machine fertilization along with the continuous development of science and technology, people generally use a fertilizer applicator to fertilize in field fertilization, but the fertilization efficiency cannot be accurately controlled, in the batch fertilization process, a farmer has limited large data information collection of the fertilization environment of the fertilizer applicator, and fertilization data parameters need to be adjusted according to different moments in the fertilization process, so that the operation is troublesome, the operation requirement on an operator is high, and the operator needs to be subjected to long-term experience training.
Disclosure of Invention
In order to solve the technical problems, the invention provides the liquid fertilizer field fertilizer applicator based on big data analysis, which has lower operation requirements on operators and is easy to popularize in vast rural areas based on big data analysis.
The invention is realized by adopting the following technical scheme: a liquid manure field fertilizer applicator based on big data analysis, comprising:
the liquid fertilizer storage tank is provided with a fertilizer filler for fertilizing a to-be-fertilized area;
the travelling crane is used for carrying the liquid fertilizer storage tank to travel in an area to be fertilized;
a control system mounted on the vehicle;
wherein the control system comprises:
a speed sensor for detecting a vehicle speed V of the traveling vehicle1；
The first electric ball valve is used for adjusting the oil output quantity of an oil way output pipeline of the travelling crane, and the oil output quantity determines the vehicle speed V1And with the vehicle speed V1Is in direct proportion;
a flow sensor for detecting the addition of the fertilizer injectorFlow rate Q1；
An electric ball valve II for adjusting the filling flow Q1；
A liquid level sensor for detecting the liquid level h in the liquid fertilizer storage tank1；
A controller for controlling the vehicle speed V1Performing compensation processing to obtain compensated vehicle speed V1Is a V1(1+f(X1)+f(X2)+f(h1) Wherein, f (X)1) For the speed V of soil mass pair in the area to be fertilized1The influence function of (a) is,X1is the soil property coefficient in the area to be fertilized,
the variance of the soil property coefficient in the liquid fertilizer storage tank is obtained; f (X)2) For the crops in the area to be fertilized to the speed V of the vehicle1The influence function of (a) is,
X2is the coefficient of the crops in the area to be fertilized,
the variance of the crop coefficient in the liquid fertilizer storage tank is obtained; f (h)1) As a variable, the liquid level h in the liquid fertilizer storage tank is characterized1For vehicle speed V1Influence function of f (h)1)＝Kh1K is a constant with a negative value; the controller is also used for judging the compensated vehicle speed V1Whether the vehicle speed is within a preset vehicle speed range or not, and when the controller judges the compensated vehicle speed V1When the vehicle speed is within the preset vehicle speed range, the filling flow Q is continuously judged1Whether the liquid fertilizer is in a preset filling flow range or not is judged, if so, the liquid fertilizer field fertilizer applicator is controlled to continue the current spraying operation mode; the controller judges the compensated vehicle speed V1When the vehicle is not in the preset vehicle speed range, the opening degree of the first electric ball valve is controlled until the vehicle is compensatedSpeed V1The vehicle speed is within the preset vehicle speed range; the controller judges the filling flow Q1When the current position is not within the preset filling flow range, the opening degree of the electric ball valve II is controlled until the filling flow Q is reached1Within the preset filling flow range;
the database is established based on big data analysis, and an idealized vehicle speed, the opening degree of an idealized electric ball valve I and the opening degree of an idealized electric ball valve II are designed according to the same soil property coefficient, the same crop coefficient and different liquid levels;
the controller is further configured to:
(1) when a corresponding liquid fertilizer field fertilizer applicator sprays a pesticide in any area to be fertilized, inquiring an idealized vehicle speed, the opening degree of an idealized electric ball valve I and the opening degree of an idealized electric ball valve II from the database according to the current soil property coefficient, the crop coefficient and different liquid levels;
(2) and controlling the liquid fertilizer field fertilizer applicator to spray pesticide according to the corresponding idealized vehicle speed, the opening degree of the idealized electric ball valve I and the opening degree of the idealized electric ball valve II under different liquid levels.
As a further improvement of the above, the controller is further configured to:
(3) and collecting the actual speed of the liquid fertilizer field fertilizer applicator, the actual opening degree of the first electric ball valve and the actual opening degree of the second electric ball valve in real time, and supplementing the actual speed, the actual opening degree of the first electric ball valve and the actual opening degree of the second electric ball valve into the database as a new group of pesticide spraying operation parameters so as to update the ideal speed, the ideal opening degree of the first electric ball valve and the ideal opening degree of the second electric ball valve under the same soil property coefficient, the same crop coefficient and different liquid levels.
As a further improvement of the above solution, the method for establishing the database includes the following steps:
(1) by using n1Platform liquid fertilizer field fertilizer applicator is at n2Spraying operation in the area where the block is to be fertilized, n1The number of the (C) is not less than one thousand, n2The number of the Chinese medicinal materials is not less than one thousand;
(2) gather every liquid fertile field fertilizer distributor and spout the medicine operation parameter group at the multiunit in each region of waiting to fertilize, every group spouts the medicine operation parameter and includes:
vehicle speed VijtThe speed of the ith liquid fertilizer field fertilizer applicator at the time of t when spraying the pesticide in the jth area to be fertilized;
liquid level hijtWhen the ith liquid fertilizer field fertilizer applicator sprays a pesticide in the jth area to be fertilized, the liquid level in a liquid fertilizer storage tank of the liquid fertilizer field fertilizer applicator at the moment t;
soil texture Xj1The soil property coefficient of the jth area to be fertilized is shown;
crop Xj2The coefficient is the crop coefficient in the jth area to be fertilized;
degree of opening Mij1The opening and closing degree of the first electric ball valve at the moment t when the ith liquid fertilizer field fertilizer applicator sprays the pesticide in the jth area to be fertilized;
degree of opening Mij2The opening degree of the second electric ball valve at the moment t when the ith liquid fertilizer field fertilizer applicator sprays the pesticide in the jth area to be fertilized;
(3) establishing a plurality of data set sets by taking the same soil property coefficient and the same crop coefficient as references;
(4) in each data group set, calculating the average vehicle speed under the same liquid level;
(5) in each data group set, searching and comparing data groups according to the average vehicle speed to find out the data group with the average vehicle speed;
(6) in the found data group with the average vehicle speed, average values of the opening degree of the electric ball valve I and the opening degree of the electric ball valve II are respectively taken;
(7) establishing an ideal spraying operation parameter set: designing an idealized vehicle speed, the opening degree of an idealized electric ball valve I and the opening degree of an idealized electric ball valve II under the conditions of the same soil property coefficient, the same crop coefficient and different liquid levels; the ideal vehicle speed is the corresponding average vehicle speed, the opening degree of the first ideal electric ball valve is the average value of the opening degree of the corresponding first electric ball valve, and the opening degree of the second ideal electric ball valve is the average value of the opening degree of the corresponding second electric ball valve.
Further, the method for establishing the database further comprises the following steps:
and collecting the actual speed of the liquid fertilizer field fertilizer applicator, the actual opening degree of the first electric ball valve and the actual opening degree of the second electric ball valve in real time, and supplementing the actual speed, the actual opening degree of the first electric ball valve and the actual opening degree of the second electric ball valve into the database as a new group of pesticide spraying operation parameters so as to update the ideal speed, the ideal opening degree of the first electric ball valve and the ideal opening degree of the second electric ball valve under the same soil property coefficient, the same crop coefficient and different liquid levels.
As a further improvement of the above scheme, the control system detects the speed V of the travelling crane through a speed sensor1；
And/or;
the control system detects the filling flow Q of the fertilizer filler through a flow sensor1。
As a further improvement of the scheme, the control system detects the liquid level h in the liquid fertilizer storage tank through a liquid level sensor1。
Furthermore, the liquid level sensor adopts an ultrasonic liquid level transmitter, and the ultrasonic liquid level transmitter is installed on the inner side of the top wall of the fertilizer filler.
As a further improvement of the above scheme, the control system also judges the liquid level h1And if the value is less than a preset liquid level value, carrying out alarm prompt for too low liquid level.
Further, control system adopts the voice broadcast mode to carry out the liquid level and crosses low warning suggestion, perhaps adopts the buzzer mode to carry out the liquid level and crosses low warning suggestion, perhaps adopts the light scintillation mode to carry out the liquid level and crosses low warning suggestion.
As a further improvement of the above scheme, the first electric ball valve is mounted on the oil path output pipeline;
and/or;
and the electric ball valve II is arranged on a pipeline between the liquid fertilizer storage tank and the fertilizer filler.
The liquid fertilizer field fertilizer applicator is provided with a database based on big data analysis, and the database obtains the same soil property coefficient, the same crop coefficient and the ideal parameter set under different liquid levels through the big data analysis, so that the operation parameters of the fertilizer applicator can be selected according to the soil property coefficient and the crop coefficient, and the fertilizer application efficiency is improved. The fertilizer applicator can be directly and automatically matched with other parameter values according to different liquid levels in the fertilizing process, so that the operation of farmers is more convenient, the operation difficulty is reduced, only a steering wheel needs to be controlled, the farmer can spray the pesticide in the area to be fertilized, the vehicle speed, the filling amount and the like do not need to be considered artificially, and therefore, the pesticide spraying experience does not need to be very rich, and the popularization and the promotion in vast rural areas are easy.
For the liquid fertilizer field fertilizer applicator, the database of the liquid fertilizer field fertilizer applicator can be continuously updated by the newly generated spraying operation parameter group of the liquid fertilizer field fertilizer applicator, so that the ideal vehicle speed, the opening degree of the first ideal electric ball valve and the opening degree of the second ideal electric ball valve of the liquid fertilizer field fertilizer applicator at different liquid levels are more and more reasonable, and a self-adaptive function is realized.
The liquid fertilizer field fertilizer applicator can also upload the newly generated spraying operation parameter group of the fertilizer applicator to a server at the background, and the server integrates a plurality of fertilizer applicator data to update the whole original database, so that the ideal spraying operation parameter group of the liquid fertilizer field fertilizer applicator newly delivered from a manufacturer is continuously optimized, the user experience is improved, and the fertilizer application efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of functional modules of a liquid fertilizer field fertilizer applicator based on big data analysis.
Fig. 2 is a flowchart of a control method of the control system of fig. 1.
Fig. 3 is a flowchart of a method for creating the database in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the liquid fertilizer field fertilizer applicator of the present invention includes a liquid fertilizer storage tank 1, a traveling crane 2, and a control system. The control system comprises a speed sensor 3, a first electric ball valve 4, a flow sensor 5, a second electric ball valve 6, a liquid level sensor 7, a controller 8 and a database 10.
The liquid fertilizer storage tank 1 is provided with a fertilizer injector 9 for fertilizing an area to be fertilized. The travelling crane 2 is used for carrying the liquid fertilizer storage tank 1 to travel in the area to be fertilized. The control system is used for controlling the fertilizing operation of the liquid fertilizer field fertilizer applicator in the area to be fertilized.
Referring to fig. 2, a specific control method of the control system includes the following steps.
a. The speed sensor 3 detects the speed V of the travelling crane 21. The speed sensors 3 are various and can be selected according to actual needs.
b. The oil output quantity of an oil way output pipeline of the travelling crane 2 is adjusted through the electric ball valve I4, and the oil output quantity determines the vehicle speed V1And with the vehicle speed V1Is in direct proportion. Oil output and vehicle speed V1The proportionality coefficient therebetween can be obtained by experiment. The electric ball valve I4 can be arranged on the oil path output pipeline as long as the electric ball valve I can be used for controlling the oil output quantity of the oil path output pipeline.
c. Detecting the filling flow Q of the fertilizer filler 9 by the flow sensor 51。
d. The filling flow Q is adjusted through the electric ball valve II 61. The electric ball valve II 6 can be arranged on a pipeline between the liquid fertilizer storage tank 1 and the fertilizer injector 9 as long as the electric ball valve II can be used for controlling the injection flow Q1And (4) finishing. The opening and closing degree of the electric ball valve is utilized, so that the oil quantity or the liquid fertilizer flow can be more accurately controlled.
e. Detect liquid level h in fertile storage tank 1 of liquid through level sensor 71. In this embodiment, the level sensor 7 may be an ultrasonic level sensor, which may be mounted inside the top wall of the fertilizer injector 9. Ultrasonic liquid levelThe sensor is developed by utilizing the characteristics of ultrasonic waves, the ultrasonic waves are mechanical waves with vibration frequency higher than that of sound waves, the ultrasonic waves are generated by the vibration of the transduction wafer under the excitation of voltage, and the sensor has the characteristics of high frequency, short wavelength, small diffraction phenomenon, particularly good directivity, capability of being used as rays and directionally propagating and the like. The ultrasonic wave has great penetrating power to liquid and solid, especially to opaque solid, and may penetrate several tens of meters deep. The ultrasonic wave can generate obvious reflection to form echo when contacting impurities or interfaces, and can generate Doppler effect when contacting moving objects, and the ultrasonic wave mainly comprises a piezoelectric wafer, can transmit ultrasonic wave and receive ultrasonic wave, has working frequency which is the resonance frequency of the piezoelectric wafer, and has the maximum output energy and the highest sensitivity when the frequency of alternating voltage applied to two ends of the piezoelectric wafer is equal to the resonance frequency of the wafer.
f. Controller 8 for vehicle speed V1Performing compensation processing to obtain compensated vehicle speed V1Is a V1(1+f(X1)+f(X2)+f(h1))。
Wherein, f (X)1) For the speed V of soil mass pair in the area to be fertilized1The influence function of (a) is,
X1the soil property coefficient is the soil property coefficient in the area to be fertilized, and can be obtained by carrying out experimental detection on the lands with different soil properties;
is the variance of the soil property coefficient; the soil quality coefficient in the area to be fertilized obeys Gaussian distribution, and the soil quality coefficient is too soft, too slow and too hard, which are not beneficial to the agricultural fertilizer spraying operation, so the speed needs to be compensated according to the actual condition.
f(X2) For the crops in the area to be fertilized to the speed V of the vehicle1The influence function of (a) is,
X2for the coefficient of the crop in the area to be fertilizedThe crop coefficient can be obtained by different crop experiments;
is the crop coefficient variance; the crop coefficient in the area to be fertilized obeys Gaussian distribution, the smaller the crop coefficient is, the smaller the crop height is, the shorter the crop is, the too fast speed is, the higher the crop is, the slower the speed is, the better the speed is, but the adverse effect on the agricultural fertilizer spraying is certainly, so the constant speed is required.
f(h1) As variable, the liquid level h in the liquid fertilizer storage tank is represented1For vehicle speed V1Influence function of f (h)1)＝Kh1K is a constant with a negative value; i.e. velocity with liquid level h1The change slope of (2) indicates that the speed is inversely proportional to the liquid level under the condition that other parameters are the same, and the higher the liquid level is, the larger the weight of the liquid fertilizer storage tank is, and the slower the travelling speed is.
g. The controller 8 judges the compensated vehicle speed V1Whether it is within the preset vehicle speed range.
h. When the compensated vehicle speed V1When the vehicle speed is not within the preset vehicle speed range, the controller 8 can control the opening and closing degree of the first electric ball valve to the compensated vehicle speed V1Is located in the preset vehicle speed range. In the present embodiment, if the vehicle speed V is1If the vehicle speed is larger than the set vehicle speed range, the controller 8 reduces the opening degree of the electric ball valve I4, so that the oil supply amount is reduced, and the speed V is enabled to be higher than the set vehicle speed range1Dropping to the set vehicle speed range; if the vehicle speed V1If the speed is less than the set speed range, the controller 8 enlarges the opening and closing degree of the electric ball valve I4, so that the oil supply amount is increased, and the speed V is increased1To within the set vehicle speed range.
i. The controller 8 judges the filling flow Q1Whether the filling flow is within the preset filling flow range.
j. When the filling flow rate Q1When the water is not in the preset filling flow range, the controller 8 can control the opening degree of the electric ball valve II 6 until the filling flow Q1Within a preset filling flow range. In this embodiment, if the filling flow rate Q1Greater than preset fillIn the flow range, the controller 8 reduces the opening degree of the second electric ball valve 6, so that the filling flow Q is reduced1To the set vehicle speed range; if the filling flow rate Q1If the filling flow is smaller than the preset filling flow range, the controller 8 enlarges the opening degree of the electric ball valve II 6, so that the filling flow Q is improved1To the set vehicle speed range.
In other embodiments, the controller 8 may also determine the level h1If the value is less than a preset liquid level value, the controller 8 gives an alarm for too low liquid level. Like this when the fertile liquid of 1 inside of liquid fertile storage tank is less than preset liquid level value, can remind the user fertilizer not enough to increase fertilizer and continue to fertilize, prevent to the condition of 1 empty pump in liquid fertile storage tank. The controller 8 can adopt the voice broadcast mode to carry out the liquid level and cross low warning suggestion, also can adopt the buzzer mode to whistle and carry out the liquid level and cross low warning suggestion, also can adopt the light scintillation mode to carry out the liquid level and cross low warning suggestion. The user is prompted through different alarm modes, so that the user can know the real-time situation in the liquid fertilizer storage tank more quickly.
The database 10 is established based on big data analysis, and an idealized vehicle speed, the opening degree of an idealized electric ball valve I and the opening degree of an idealized electric ball valve II are designed according to the same soil property coefficient, the same crop coefficient and different liquid levels.
Referring to fig. 3, the method for establishing the database includes the following steps.
(1) By using n1Platform liquid fertilizer field fertilizer applicator is at n2Spraying operation in the area where the block is to be fertilized, n1The number of the (C) is not less than one thousand, n2The number of the blocks is not less than one thousand.
(2) And collecting the spraying operation parameter group of each liquid fertilizer field fertilizer applicator in each area to be fertilized.
Each group of spraying operation parameter group comprises:
vehicle speed Vijt1The speed of the ith liquid fertilizer field fertilizer applicator at the time of t when spraying the pesticide in the jth area to be fertilized;
liquid level hijt1The ith liquid fertilizer field fertilizer applicator is arranged in the jth area to be fertilizedWhen spraying pesticide in the field, the liquid level in a liquid fertilizer storage tank of the liquid fertilizer field fertilizer applicator at the time t;
soil texture Xj1The soil property coefficient of the jth area to be fertilized is shown;
crop Xj2The coefficient is the crop coefficient in the jth area to be fertilized;
degree of opening Mij1The opening and closing degree of the first electric ball valve at the moment t when the ith liquid fertilizer field fertilizer applicator sprays the pesticide in the jth area to be fertilized;
degree of opening Mij2And the opening degree of the second electric ball valve at the time t when the ith liquid fertilizer field fertilizer applicator sprays the pesticide in the jth area to be fertilized is used for controlling the filling flow.
(3) And establishing a plurality of data group sets by taking the same soil property coefficient and the same crop coefficient as references.
(4) In each data set, the average vehicle speed at the same liquid level is calculated. I.e. the average value of the vehicle speed of n1 fertilisers at the same level on n2 plots of land.
(5) And in each data group set, searching and comparing the data groups according to the average vehicle speed to find out the data group with the average vehicle speed.
(6) And in the found data group with the average vehicle speed, average values of the opening degree of the first electric ball valve and the opening degree of the second electric ball valve are respectively taken.
(7) Establishing an ideal spraying operation parameter set: designing an idealized vehicle speed, the opening degree of an idealized electric ball valve I and the opening degree of an idealized electric ball valve II under the conditions of the same soil property coefficient, the same crop coefficient and different liquid levels; the ideal vehicle speed is the corresponding average vehicle speed, the opening degree of the first ideal electric ball valve is the average value of the opening degree of the corresponding first electric ball valve, and the opening degree of the second ideal electric ball valve is the average value of the opening degree of the corresponding second electric ball valve, which is equivalent to the average value of the filling flow under the same condition.
When the corresponding liquid fertilizer field fertilizer applicator sprays the pesticide in any one area to be fertilized, the controller 8 inquires the idealized vehicle speed, the opening degree of the idealized electric ball valve I and the opening degree of the idealized electric ball valve II from the database according to the current soil property coefficient, the crop coefficient and different liquid levels.
And the controller 8 controls the liquid fertilizer field fertilizer applicator to realize pesticide spraying operation according to the corresponding ideal vehicle speed, the opening degree of the first ideal electric ball valve and the opening degree of the second ideal electric ball valve under different liquid levels.
The controller 8 also collects the actual speed of the liquid fertilizer field fertilizer applicator, the actual opening degree of the electric ball valve I and the actual opening degree of the electric ball valve II in real time, and supplements the parameters into the database as a new group of pesticide spraying operation parameters so as to update the idealized speed of the liquid fertilizer field fertilizer applicator, the opening degree of the idealized electric ball valve I and the opening degree of the idealized electric ball valve II under the same soil property coefficient, the same crop coefficient and different liquid levels.
The liquid fertilizer field fertilizer applicator adopts the database based on big data analysis, and the database obtains the same soil property coefficient, the same crop coefficient and the ideal parameter group under different liquid levels through big data analysis, so that a farmer can directly select the operation parameters of the fertilizer applicator according to the soil property coefficient and the crop coefficient, thereby improving the fertilizer application efficiency.
The fertilizer applicator can directly and automatically adjust other parameter values according to different liquid levels in the fertilizer application process, the operation of farmers is more convenient, the operation difficulty is reduced, only a steering wheel needs to be controlled, the farmer can spray the pesticide in a region to be fertilized, the vehicle speed, the injection amount and the like do not need to be considered artificially, so that the pesticide spraying experience is not rich, the popularization and the popularization in vast rural areas are easy, the fertilizer applicator can also continuously update a database by spraying a pesticide operation parameter group newly generated by the fertilizer applicator, the deviation of large data analysis is corrected, the real-time error of the fertilizer applicator is reduced, and the fertilizer application efficiency is further improved.
Of course, the newly generated spraying operation parameter group of the fertilizer applicator can also be uploaded to a server at the background, and the server integrates a plurality of fertilizer applicator data to update the whole original database. For example, the actual speed of the liquid fertilizer field fertilizer applicator, the actual opening degree of the electric ball valve I and the actual opening degree of the electric ball valve II are collected in real time and are used as a new group of pesticide spraying operation parameters to be supplemented into a database so as to update the ideal speed, the opening degree of the ideal electric ball valve I and the opening degree of the ideal electric ball valve II under the same soil property coefficient, the same crop coefficient and different liquid levels.
Therefore, when any one liquid fertilizer field fertilizer applicator sprays a pesticide in any one to-be-fertilized area, the idealized vehicle speed, the opening degree of the idealized electric ball valve I and the opening degree of the idealized electric ball valve II are inquired from a database according to the current soil property coefficient, the crop coefficient and different liquid levels; and then, controlling the liquid fertilizer field fertilizer applicator to spray pesticide according to the corresponding ideal vehicle speed, the opening degree of the first ideal electric ball valve and the opening degree of the second ideal electric ball valve under different liquid levels.
Before fertilization, corresponding soil property coefficients and crop coefficient parameters are selected firstly, liquid level parameters in the liquid fertilizer storage tank are obtained through a liquid level sensor, and parameters of an idealized vehicle speed, the degree of opening of an idealized electric ball valve I and the degree of opening of an idealized electric ball valve II can be obtained according to the parameters. When the liquid level changes, parameters of the idealized vehicle speed, the opening degree of the idealized electric ball valve I and the opening degree of the idealized electric ball valve II automatically change to adapt to the fertilizing amount under different liquid levels, so that the fertilizer applicator can ensure that the vehicle speed and the filling flow are the same all the time, and the fertilizer can be applied more effectively and reasonably. Therefore, the automatic fertilization can be conveniently, effectively and quickly carried out on the farmland, the data in the database can be updated at any time through the database updating system, the data are fed back to the control system, and the data are updated in real time, so that the real-time error of the data is reduced, and the fertilization efficiency is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A liquid manure field fertilizer applicator based on big data analysis, comprising:
the liquid fertilizer storage tank is provided with a fertilizer filler for fertilizing a to-be-fertilized area;
the travelling crane is used for carrying the liquid fertilizer storage tank to travel in an area to be fertilized;
characterized in that, liquid fertilizer field fertilizer distributor still including install control system on the driving a vehicle, control system includes:
a speed sensor for detecting a vehicle speed V of the traveling vehicle1；
The first electric ball valve is used for adjusting the oil output quantity of an oil way output pipeline of the travelling crane, and the oil output quantity determines the vehicle speed V1And with the vehicle speed V1Is in direct proportion;
a flow sensor for detecting the filling flow Q of the fertilizer filler1；
An electric ball valve II for adjusting the filling flow Q1；
A liquid level sensor for detecting the liquid level h in the liquid fertilizer storage tank1；
A controller for controlling the vehicle speed V1Performing compensation processing to obtain compensated vehicle speed V1Is a V1(1+f(X1)+f(X2)+f(h1) Wherein, f (X)1) For the speed V of soil mass pair in the area to be fertilized1The influence function of (a) is,
X1is the soil property coefficient in the area to be fertilized,
the variance of the soil property coefficient in the liquid fertilizer storage tank is obtained; f (X)2) For the crops in the area to be fertilized to the speed V of the vehicle1The influence function of (a) is,
X2is to be administeredThe coefficient of the crop in the fertilizer area,
the variance of the crop coefficient in the liquid fertilizer storage tank is obtained; f (h)1) As a variable, the liquid level h in the liquid fertilizer storage tank is characterized1For vehicle speed V1Influence function of f (h)1)＝Kh1K is a constant with a negative value; the controller is also used for judging the compensated vehicle speed V1Whether the vehicle speed is within a preset vehicle speed range or not, and when the controller judges the compensated vehicle speed V1When the vehicle speed is within the preset vehicle speed range, the filling flow Q is continuously judged1Whether the liquid fertilizer is in a preset filling flow range or not is judged, if so, the liquid fertilizer field fertilizer applicator is controlled to continue the current spraying operation mode; the controller judges the compensated vehicle speed V1When the vehicle speed is not within the preset vehicle speed range, the opening and closing degree of the first electric ball valve is controlled until the compensated vehicle speed V1The vehicle speed is within the preset vehicle speed range; the controller judges the filling flow Q1When the current position is not within the preset filling flow range, the opening degree of the electric ball valve II is controlled until the filling flow Q is reached1Within the preset filling flow range;
the database is established based on big data analysis, and an idealized vehicle speed, the opening degree of an idealized electric ball valve I and the opening degree of an idealized electric ball valve II are designed according to the same soil property coefficient, the same crop coefficient and different liquid levels;
wherein the controller is further configured to:
(1) when a corresponding liquid fertilizer field fertilizer applicator sprays a pesticide in any area to be fertilized, inquiring an idealized vehicle speed, the opening degree of an idealized electric ball valve I and the opening degree of an idealized electric ball valve II from the database according to the current soil property coefficient, the crop coefficient and different liquid levels;
(2) and controlling the liquid fertilizer field fertilizer applicator to spray pesticide according to the corresponding idealized vehicle speed, the opening degree of the idealized electric ball valve I and the opening degree of the idealized electric ball valve II under different liquid levels.
2. The liquid manure field fertilizer applicator based on big data analysis of claim 1, wherein: the controller is further configured to:
(3) and collecting the actual speed of the liquid fertilizer field fertilizer applicator, the actual opening degree of the first electric ball valve and the actual opening degree of the second electric ball valve in real time, and supplementing the actual speed, the actual opening degree of the first electric ball valve and the actual opening degree of the second electric ball valve into the database as a new group of pesticide spraying operation parameters so as to update the ideal speed, the ideal opening degree of the first electric ball valve and the ideal opening degree of the second electric ball valve under the same soil property coefficient, the same crop coefficient and different liquid levels.
3. The liquid manure field fertilizer applicator based on big data analysis of claim 1, wherein: the database establishing method comprises the following steps:
(1) by using n1Platform liquid fertilizer field fertilizer applicator is at n2Spraying operation in the area where the block is to be fertilized, n1The number of the (C) is not less than one thousand, n2The number of the Chinese medicinal materials is not less than one thousand;
(2) gather every liquid fertile field fertilizer distributor and spout the medicine operation parameter group at the multiunit in each region of waiting to fertilize, every group spouts the medicine operation parameter and includes:
vehicle speed VijtThe speed of the ith liquid fertilizer field fertilizer applicator at the time of t when spraying the pesticide in the jth area to be fertilized;
liquid level hijtWhen the ith liquid fertilizer field fertilizer applicator sprays a pesticide in the jth area to be fertilized, the liquid level in a liquid fertilizer storage tank of the liquid fertilizer field fertilizer applicator at the moment t;
soil texture Xj1The soil property coefficient of the jth area to be fertilized is shown;
crop Xj2The coefficient is the crop coefficient in the jth area to be fertilized;
degree of opening Mij1The opening and closing degree of the first electric ball valve at the moment t when the ith liquid fertilizer field fertilizer applicator sprays the pesticide in the jth area to be fertilized;
degree of opening Mij2Which isOpening and closing degree of a second electric ball valve at time t when the ith liquid fertilizer field fertilizer applicator sprays a pesticide in the jth area to be fertilized;
(3) establishing a plurality of data set sets by taking the same soil property coefficient and the same crop coefficient as references;
(4) in each data group set, calculating the average vehicle speed under the same liquid level;
(5) in each data group set, searching and comparing data groups according to the average vehicle speed to find out the data group with the average vehicle speed;
(6) in the found data group with the average vehicle speed, average values of the opening degree of the electric ball valve I and the opening degree of the electric ball valve II are respectively taken;
(7) establishing an ideal spraying operation parameter set: designing an idealized vehicle speed, the opening degree of an idealized electric ball valve I and the opening degree of an idealized electric ball valve II under the conditions of the same soil property coefficient, the same crop coefficient and different liquid levels; the ideal vehicle speed is the corresponding average vehicle speed, the opening degree of the first ideal electric ball valve is the average value of the opening degree of the corresponding first electric ball valve, and the opening degree of the second ideal electric ball valve is the average value of the opening degree of the corresponding second electric ball valve.
4. A liquid manure field fertilizer applicator based on big data analysis as claimed in claim 3, characterized in that: the database establishing method further comprises the following steps:
and collecting the actual speed of the liquid fertilizer field fertilizer applicator, the actual opening degree of the first electric ball valve and the actual opening degree of the second electric ball valve in real time, and supplementing the actual speed, the actual opening degree of the first electric ball valve and the actual opening degree of the second electric ball valve into the database as a new group of pesticide spraying operation parameters so as to update the ideal speed, the ideal opening degree of the first electric ball valve and the ideal opening degree of the second electric ball valve under the same soil property coefficient, the same crop coefficient and different liquid levels.
5. The liquid manure field fertilizer applicator based on big data analysis of claim 1, wherein: the control system passes a speedThe speed sensor detects the speed V of the vehicle1；
And/or;
the control system detects the filling flow Q of the fertilizer filler through a flow sensor1。
6. The liquid manure field fertilizer applicator based on big data analysis of claim 1, wherein: the control system detects the liquid level h in the liquid fertilizer storage tank through a liquid level sensor1。
7. The liquid manure field fertilizer applicator based on big data analysis of claim 6, wherein: the liquid level sensor adopts an ultrasonic liquid level transmitter, and the ultrasonic liquid level transmitter is arranged on the inner side of the top wall of the fertilizer filler.
8. The method for fertilizing a liquid fertilizer field based on big data analysis according to claim 1, characterized in that: the control system also judges the liquid level h1And if the value is less than a preset liquid level value, carrying out alarm prompt for too low liquid level.
9. The method for fertilizing a liquid fertilizer field based on big data analysis of claim 8, characterized in that: control system adopts the voice broadcast mode to carry out the liquid level and crosses low warning suggestion, perhaps adopts the buzzer mode of whistling to carry out the liquid level and crosses low warning suggestion, perhaps adopts the light scintillation mode to carry out the liquid level and crosses low warning suggestion.
10. The method for fertilizing a liquid fertilizer field based on big data analysis according to claim 1, characterized in that: the first electric ball valve is arranged on the oil way output pipeline;
and/or;
and the electric ball valve II is arranged on a pipeline between the liquid fertilizer storage tank and the fertilizer filler.
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