Crop field water-fertilizer integrated intelligent managing and control system and method based on Multi-source Information Fusion
Technical field
The present invention relates to a kind of crop field water-fertilizer integrated intelligent managing and control system based on Multi-source Information Fusion and method, belong to
The Integration of Water into Fertilizer field.
Background technology
Water-fertilizer integral microspray irrigation technology is the new agricultural technology that microspray irrigation combines together with fertilising.It is will to irrigate
Both are fully combined together and fundamentally save irrigation water, at utmost improve the practicality side of utilization rate of fertilizer with fertilising
Formula.Currently in order to saving artificial and saving irrigation water, utilization rate of fertilizer is improved, gradually started using field water fertilizer integrally in crop field
Change system, and it is increasingly becoming a kind of important trend of agriculture Production of Large Fields from now on.But most application masters in practical operation
The cultivation experience of user is relied on, even if some field water fertilizer integral systems realize a certain degree of automation, but still
The opportunity that so there is a problem of irrigation volume, dose, irrigation and fertilising is all not easily accomplished optimized control.It is wherein topmost
Be, in actual applications due to the situation of future weather, farmland and environmental data and plantation agronomy cannot be combined, carry out it is comprehensive,
Effectively, the administration decision-making for carrying out crop field water-fertilizer integral of water-saving and electricity-saving.
Found through the literature search to prior art, Chinese invention patent " Intelligent water saving fertigation system and controlling party
Method " (201110034371.8) is disclosed to be realized the energy-saving and water-saving of irrigation system, remote control, unattended, automatic alarm, pours
Fill the functions such as fertilising guidance.Chinese invention patent " one kind surveys moisture in the soil and irrigates liquid manure integrated intelligent control system and control method "
(CN201510673554.2), disclose by soil moisture content acquisition station, the central control unit of the information on soil moisture that is stored with and
The apparatus system of irrigating unit composition, and intensity of illumination detection circuit, aerial temperature and humidity detection electricity are additionally arranged in the controls
Road and fertigation unit.Above patent relates separately to fertigation link, soil temperature and humidity and the farmland of water-fertilizer integral management
The collection link and intelligent control method of meteorological data.But above-mentioned patent is not directed to reference to weather forecast information, specially
Family's decision system and site environment test data, thus accurate fertigation decision-making can not be made.And above patent is fitted
For liquid fertilizer, the cost of fertilising is increased for the conventional granular fertilizer of crop field fertilising.
With the proposition of precision agriculture, the requirement that water-fertilizer integrated intelligent prediction is irrigated also is gradually stepped up, in the urgent need to
A kind of field water fertilizer integral intelligent managing and control system and method based on Multi-source Information Fusion, with realize collection weather forecast query,
Crop cloud computing platform, farmland meteorology Real-time Collection, solid granulates fertilizer are quickly dissolved, mother liquor real-time monitoring and regulating, irrigation are applied
Fertile status monitoring and online fault detect and fertigation are irrigated and fertilising in the intelligent predicting of the field water fertilizer integration of one
Technology, this has the meaning of important reality to improving water-fertilizer integral efficiency and increasing grain yield.
The content of the invention
The present invention is directed to deficiencies of the prior art, there is provided a kind of field water fertilizer one based on Multi-source Information Fusion
Bodyization intelligence managing and control system and method, using the teaching of the invention it is possible to provide weather forecast query, the inquiry of crop cloud computing platform, farmland meteorology are adopted in real time
Collection, solid fertilizer quickly dissolve, mother liquor real-time monitoring and regulating, fertigation status monitoring, online fault detect, fertigation
And long-distance intelligent control function is in the automation control system of one.
A kind of field water fertilizer integral intelligent managing and control system based on Multi-source Information Fusion, including weather forecast query is received
Subsystem, meteorological data acquisition-controlling subsystem, cloud computing platform, central control unit, fertigation control subsystem
With fertigation status monitoring and online fault detection system.
Described weather forecast query receiving subsystem can inquire about following several days weather condition, be to communicate mould using GPRS
Block, the data of weather forecast interface provided by National Meteorological Bureau accesses central meteorogical phenomena database, inquiry in fact from Chinese meteorological network
When weather forecast, receive data and be sent to weather forecast query receiving subsystem, then transferred data to by system bus
Centre control unit, makes fertigation decision-making and provides real-time weather forecast data for central control unit.
Described meteorological data acquisition-controlling subsystem includes that meteorological real-time data acquisition controller, soil moisture are passed
Sensor, air velocity transducer, air-temperature sensor, optical sensor and rain sensor.Described real-time data acquisition controller is used
Central control unit is sent to by system bus in each farmland real time meteorological data of collection and by data, by weather monitoring
Support is arranged on the earth's surface of crop field;Described soil moisture sensor is existing existing slotting now survey type, can be to top layer and deep layer
Soil carries out fixed point monitoring and the on-line measurement of soil moisture content;Described air velocity transducer, air-temperature sensor, optical sensor and rainfall
Sensor is installed on support frame and is connected with real-time data acquisition controller by sensor data acquisition bus, for adopting
The data of collection crop field wind speed, temperature, illumination and rainfall, and real time data is transferred data to by sensor data acquisition bus
Acquisition controller.
Described cloud computing platform is to calculate the comprehensive cloud computing platform taken into account with data storage processing, for calculating and depositing
Gas storage is as the data and the life of field crop anniversary of data acquisition-controlling subsystem and weather forecast query receiving subsystem
Length needs water fertilizer requirement, the historical data of fertigation time, and central control unit is transferred data to by GPRS communication module
Fertigation intelligent decision expert system software module, be that fertigation intelligent decision expert system software module makes irrigation
Fertilization Decision provides the growth of crop anniversary and needs water fertilizer requirement data.
Described central control unit is used to run intelligent predicting fertigation control system software, can perform data communication
Treatment, fertigation intelligent decision, fault diagnosis, the error handle for setting up fertigation Mathematical Modeling and fertigation state;
Intelligent predicting fertigation control system software includes data communication and treatment software module, fertigation intelligent decision expert system
System software module, fertigation model and precision irrigation fertilising algorithm software module and automated system error handle software module
(intelligent predicting fertigation control system software can be according to prior art program).Described data communication and treatment software module
By the data of system bus reception cloud computing platform and simple data operation and Treatment Analysis can be carried out, be fertigation intelligence
Energy Decision-making Expert System software module makes a policy and provides data foundation;Described fertigation intelligent decision expert system software
Module can according to cloud computing platform transmission come data make the decision-making of fertigation, specific decision-making includes:According to real-time weather
With big Tanaka's soil moisture, wind speed, temperature, illumination, with reference to weather forecast prediction, various crop fields are stored in foundation cloud computing platform
The growth of crop anniversary needs water fertilizer requirement, fertigation time, and expert, kind landlord grow fertilization time to the crop anniversary and irrigation is applied
Fertilizer amount makes a policy, and then controls fertigation time and fertigation amount;Described fertigation model and precision irrigation are applied
The decision-making that fertile algorithm software module can be made according to fertigation intelligent decision expert system software module set up fertigation with
And fertilizer mother liquor dynamic regulation Mathematical Modeling, so that it is determined that optimization algorithm realizes that precision irrigation applies fertilizer;Described Department of Automation
System error handle software module is passed according to the signal detection pressure that fertigation status monitoring and online fault detection system are fed back
The true registration of sensor, flow sensor, it is determined that abort situation occur and overhauled, to ensure pressure and flow in pipeline
Normally.
Described fertigation control subsystem can be according to the decision-making of fertigation intelligent decision expert system software module
To perform fertigation operation, including fertigation execution unit and fertigation controller.
Described fertigation execution unit includes essence amount with fertile device and head pivot device.Described accurate fertilizing dress
Put including essence amount fertilizer mechanism and agitator, for essence amount fertilizer and the controllable mother liquor of configuration concentration;Described essence amount fertilizer machine
The fertilizer mechanism that structure is assembled into from existing screw auger;Described agitator is used to blending, dissolve and filtering granular fertilizer.It is described
Head pivot device can be using existing equipment (such as a kind of portable microspray irrigation liquid manure one of Application No. 201610539657.4
Body total management system and its management-control method);Head pivot device includes main pipeline, water pump, non-return valve, pressure gauge, filtering
The fertile pump of device, magnetic valve, mother liquor tank, note, mother liquor tank water inlet pipe and mother liquor tank drain pipe;Head pivot device is used for water source water intaking and adds
Pressure, and for the controllable mother liquor of configuration concentration provides clear water, through filtration treatment, be responsible for the pressurization of whole Irrigation and fertilization system, water supply,
Filtering, measurement task;
The data that described fertigation controller can be measured according to sensor assembly are fertile to control essence to measure fertilizer mechanism, note
Pump, agitator and electromagnetism valve events realize the configuration of essence amount fertilizer and concentration controllable mother liquor;Fertigation controller includes essence
The fertile pump controller of amount fertilizer mechanism controller, agitator controller, note, sensor assembly and system human-computer interaction module;Institute
The fertigation controller stated selects STM32 type single-chip microcomputers;Described sensor assembly includes EC sensors, PH sensors, pressure
Force snesor and flow sensor, and mutually communication is connected with fertigation controller by sensor data acquisition bus;Institute
The EC sensors and PH sensors stated are arranged on mother liquor tank bottom sides, EC values and pH value for detecting mother liquor in mother liquor tank;
Described pressure sensor is arranged on main pipeline end, the pressure for detecting main pipeline;Described flow sensor is pacified respectively
On mother liquor tank water inlet pipe, mother liquor tank drain pipe and main pipeline, the flow for detecting turnover mother liquor tank and main pipeline;It is described
Essence amount fertilizer mechanism controller one end connection fertigation controller, other end connection essence amount fertilizer mechanism, fertigation control
Device output signal control essence amount fertilizer mechanism action processed;Described agitator controller one end connection fertigation controller, separately
One end connects agitator motor, the control stirring motor action of fertigation controller output signal;Described note fertilizer pump controller
One end connects fertigation controller, and the fertile pump of other end connection note, fertigation controller output signal adjusts the defeated of the fertile pump of note
Outflow.Described system human-computer interaction module can realize man-machine interaction, be easy to expert and kind landlord that crop growing state is defeated at any time
Enter to central control unit so that fertigation intelligent decision expert system software module makes decisions, system human-computer interaction module
Including host computer, liquid crystal display, keyboard and mouse, described host computer is used to install each software of central control unit;
Described liquid crystal display, keyboard and mouse are connected by data wire with host computer.
Described fertigation status monitoring and online fault detection system are applied for real-time detection whole system in irrigation
State in the process of fertilizer and failure and central control unit, the Department of Automation of central control unit are fed back to by system bus
System error handle software module is made corresponding operation and is alarmed by fertigation control subsystem again.
A kind of control method of the field water fertilizer integral intelligent managing and control system based on Multi-source Information Fusion of the present invention, step
It is as follows:
1) weather forecast query reception work:When weather forecast query is received, operating personnel utilize GPRS communication module, lead to
The data of weather forecast interface of National Meteorological Bureau's offer is provided, is accessed central meteorogical phenomena database from Chinese meteorological network, inquired about real-time day
Gas forecasts, receives data and be sent to weather forecast query receiving subsystem, then transfer data to central control by system bus
Unit processed, makes fertigation decision-making and provides real-time weather forecast data for central control unit.
2) meteorological real-time data acquisition work:During meteorological real-time data acquisition, soil moisture sensor, wind speed are passed
Sensor, air-temperature sensor, optical sensor and rain sensor are conveyed by the data that sensor data acquisition bus will be gathered
To in real-time data acquisition controller, it is single that real-time data acquisition controller sends data to center control by system bus
Unit, the fertigation intelligent decision expert system software module of central control unit makes fertigation decision-making.
3) fertigation decision-making work:Fertigation decision-making is according to real-time weather and big Tanaka's soil moisture, wind speed, gas
Temperature, illumination, with reference to weather forecast prediction, need the water to need fertilizer according to the various field crop anniversaries growths of historical storage in cloud computing platform
Amount, fertigation time and the scene description to crop growing state, fertigation intelligent decision expert system software module is by four
Data collaborative treatment is planted, optimization produces optimal fertigation decision-making, and four kinds of data collaboratives are using eca rule treatment mechanism.
It is a triple to define an eca rule, is defined as R=(E, C, A).Wherein, E is to activate the regular thing
Part;C is condition set, is used to reflect the different situations in environment;A is operation set (or set of actions).C is commonly referred to as object herein
Variable.Object variable is the characteristic or parameter of the influence workflow flow path selection being related in data flow, abbreviation variable.Variable is with xi
To represent, variables collection is designated as X={ x1,x2,…,xk}.Variable xiSpan be domain, use symbol DiTo represent.
Define X={ x1,x2,x3,x4};x1It is local real time meteorological data, x2It is the historical data of crop growth, x3For
Data of weather forecast, x4It is the scene description data of crop growing state.
D1={ data such as sensor detection crop field temperature, humidity, intensity of illumination, wind speed };
D2={ growth of crop anniversary in former years needs water fertilizer requirement, the data of fertigation time };
D3={ data such as weather forecast temperature, rainfall, humidity, illumination, wind speed };
D4={ scene such as the growth of cereal crop seedlings, growing way, pest and disease damage to crops description data };
{ essence amount fertilizer motor speedup, essence amount fertilizer decelerating through motor, the fertile pump of note open, note fertile pump pass, magnetic valve opens A=, electromagnetism
Valve is closed, stirring motor is opened, stirring motor is closed }
E={ strategy 1, strategy 2, strategy 3 }
Strategy 1:Irrigate:Weather is normal, and soil moisture reaches default lower limit value, starts to irrigate;When humidity reaches crop
After the suitable appropriateness of growth, stop irrigating.
Strategy 2:Fertigation:The water is needed to need fertilizer according to the various field crop anniversaries growths of historical storage in cloud computing platform
Amount, fertigation time and the scene description to crop growing state, carry out the control of dose, to the time of applying fertilizer is needed, need
Apply fertilizer, crop growing state is bad, it is necessary to apply fertilizer, fertilising is carried out in the case of irrigation.
Strategy 3:Following three days weather conditions of weather forecast, rainy and precipitation meets the water requirement of plant growth, no
Irrigated, the water requirement of plant growth is unsatisfactory for without rain or rainy but precipitation, irrigated.
Statistical average temperature T0, humidity H0, intensity of illumination L0, wind speed V0 in the same time in nearly 3 years;Weather forecast
Data temperature T2, wind speed V2, humidity H2, intensity of illumination L2, air pressure P2;The real-time parameter temperature T1 that measures, humidity H1, illumination are strong
Degree L1, wind speed V1, air pressure P1.According to equation below
Data to measuring are processed, wherein K1Situations such as to have sleet on the same day in nearly 3 years weighted value (value model
Enclose 1-10), K2Situations such as having sleet for weather forecast weighted value (span 1-10), K3It is historical data weighted value (1-10),
K4It is data of weather forecast weighted value (span 1-10).
Setting judges the critical value S0 of change in weather.
Work as S<During S0, represent that weather is normal, can be irrigated or fertigation.
As S >=S0, change in weather is represented, have the probability of sleet big, do not irrigated or fertigation.
4) fertigation execution work:During fertigation execution work, the filling in central control unit is first passed through
Irrigate fertilising intelligent decision expert system software module and make fertigation decision-making, fertigation model and precision irrigation fertilising algorithm
Software module sets up fertigation and fertilizer further according to the decision-making that fertigation intelligent decision expert system software module is made
Mother liquor dynamic regulation Mathematical Modeling, so that it is determined that optimization algorithm realizes that precision irrigation applies fertilizer;Central control unit applies irrigation
Fertilizer and fertilizer mother liquor dynamic regulation Mathematical Modeling send fertigation control subsystem, fertigation control to by system bus
The fertigation controller control essence amount fertilizer distributor and head pivot device of subsystem complete specific fertigation operation.
Beneficial effects of the present invention:
1) present invention can consider weather forecast, cloud computing platform, meteorological Real-time Collection and plant growth
The factors such as the growing way situation in journey, make corresponding fertigation decision-making, accurately accomplish precision irrigation and accurate fertilizing.
2) simple structure of the present invention, automaticity is higher, high working efficiency, conveniently moving, without geographical restrictions.
3) present invention can realize water-fertilizer integral such as urea, potassium chloride, the potassium nitrate of the good granular fertilizer of solubility property
Deng, cost is greatly reduced, expand the range of application of the Integration of Water into Fertilizer.
4) present invention can realize that mother liquor, with arranging with matching somebody with somebody, improves the continuity of device work with automatic fertilizer compounding, time saving and energy saving.
5) present invention has good human-computer interaction interface, can accomplish to describe crop growing state in real time, long according to crop in time
Gesture carries out fertigation.
6) present invention with real-time detection fertigation state, inline diagnosis failure, and can timely respond.
Brief description of the drawings
Fig. 1 is the field water fertilizer integral intelligent managing and control system structural representation based on Multi-source Information Fusion
Fig. 2 is the field water fertilizer integral intelligent managing and control system functional flow diagram based on Multi-source Information Fusion
Fig. 3 is the theory diagram of the field water fertilizer integral intelligent managing and control system based on Multi-source Information Fusion
Specific embodiment:
Patent of the present invention is further detailed below in conjunction with the accompanying drawings.The present invention is a kind of based on Multi-source Information Fusion
Field water fertilizer integral intelligent managing and control system, as shown in Figure 1, 2, 3.Intelligent predicting Irrigation and fertilization system includes weather forecast query
Receiving subsystem, meteorological data acquisition-controlling subsystem, cloud computing platform, central control unit, fertigation control
System and fertigation status monitoring and online fault detection system.
A kind of field water fertilizer integral intelligent managing and control system based on Multi-source Information Fusion of the present invention is looked into including weather forecast
Ask receiving subsystem, meteorological data acquisition-controlling subsystem, cloud computing platform, central control unit, fertigation control
Subsystem and fertigation status monitoring and online fault detection system.
Described weather forecast query receiving subsystem can inquire about following several days weather condition, be to communicate mould using GPRS
Block, the data of weather forecast interface provided by National Meteorological Bureau accesses central meteorogical phenomena database, inquiry in fact from Chinese meteorological network
When weather forecast, receive data and be sent to weather forecast query receiving subsystem, then transferred data to by system bus
Centre control unit, makes fertigation decision-making and provides real-time weather forecast data for central control unit.
Described meteorological data acquisition-controlling subsystem includes that meteorological real-time data acquisition controller, soil moisture are passed
Sensor, air velocity transducer, air-temperature sensor, optical sensor and rain sensor.Described real-time data acquisition controller is used
Central control unit is sent to by system bus in each farmland real time meteorological data of collection and by data, by weather monitoring
Support is arranged on the earth's surface of crop field;Described soil moisture sensor carries out the fixed point monitoring of soil moisture content to top layer and deep soil
And on-line measurement, the corresponding position under earth's surface;Described air velocity transducer, air-temperature sensor, optical sensor and rain
Quantity sensor is installed on support frame and is connected with real-time data acquisition controller by sensor data acquisition bus, is used for
The data of collection crop field wind speed, temperature, illumination and rainfall, and real-time number is transferred data to by sensor data acquisition bus
According to acquisition controller.
Described cloud computing platform is to calculate the comprehensive cloud computing platform taken into account with data storage processing, for calculating and depositing
Gas storage is as the data and the life of field crop anniversary of data acquisition-controlling subsystem and weather forecast query receiving subsystem
Length needs water fertilizer requirement, the historical data of fertigation time, and central control unit is transferred data to by GPRS communication module
Fertigation intelligent decision expert system software module, be that fertigation intelligent decision expert system software module makes irrigation
Fertilization Decision provides the growth of crop anniversary and needs water fertilizer requirement data.
Described central control unit is used to run intelligent predicting fertigation control system software, can perform data communication
Treatment, fertigation intelligent decision, fault diagnosis, the error handle for setting up fertigation Mathematical Modeling and fertigation state,
Systems soft ware includes data communication and treatment software module, fertigation intelligent decision expert system software module, fertigation
Model and precision irrigation fertilising algorithm software module and automated system error handle software module.Described data communication and place
Reason software module can by system bus receive cloud computing platform data and carry out simple data operation and Treatment Analysis, be
Fertigation intelligent decision expert system software module makes a policy and provides data foundation;Described fertigation intelligent decision is special
Family's system software module can according to cloud computing platform transmission come data make the decision-making of fertigation, specific decision-making includes:Root
According to real-time weather and big Tanaka's soil moisture, wind speed, temperature, illumination, with reference to weather forecast prediction, deposited in foundation cloud computing platform
Storing up various field crop anniversary growths needs water fertilizer requirement, fertigation time, and expert, kind landlord grow when applying fertilizer to the crop anniversary
Between and fertigation amount make a policy, and then control fertigation time and fertigation amount;Described fertigation model and
The decision-making that precision irrigation fertilising algorithm software module can be made according to fertigation intelligent decision expert system software module is set up
Fertigation and fertilizer mother liquor dynamic regulation Mathematical Modeling, so that it is determined that optimization algorithm realizes that precision irrigation applies fertilizer;It is described
The letter that can be fed back according to fertigation status monitoring and online fault detection system of automated system error handle software module
Corresponding operation number is made, mainly detects whether just pressure and flow in pipeline by pressure sensor, flow sensor
Often work.
Described fertigation control subsystem can be according to the decision-making of fertigation intelligent decision expert system software module
To perform fertigation operation, including fertigation execution unit and fertigation controller.
Described fertigation execution unit includes essence amount with fertile device and head pivot device.Described accurate fertilizing dress
Put including essence amount fertilizer mechanism and agitator, for essence amount fertilizer and the controllable mother liquor of configuration concentration;Described essence amount fertilizer machine
Structure is the fertilizer mechanism being assembled into from existing screw auger;Described agitator is used to blending, dissolve and filtering granular fertilizer.Institute
The head pivot device stated is used for water source water intaking pressurization, and for the controllable mother liquor of configuration concentration provides clear water, through filtration treatment, undertakes
The pressurization of whole Irrigation and fertilization system, waters supply, filtering, measurement task includes main pipeline, water pump, non-return valve, pressure gauge, filtering
The fertile pump of device, magnetic valve, mother liquor tank, note, mother liquor tank water inlet pipe and mother liquor tank drain pipe.
The data that described fertigation controller can be measured according to sensor assembly are fertile to control essence to measure fertilizer mechanism, note
Pump, agitator and electromagnetism valve events realize the configuration of essence amount fertilizer and concentration controllable mother liquor, including fertigation controller, essence
The fertile pump controller of amount fertilizer mechanism controller, agitator controller, note, sensor assembly and system human-computer interaction module.Institute
The fertigation controller stated selects STM32 type single-chip microcomputers;Described sensor assembly by sensor data acquisition bus with
Fertigation controller connection mutually communication, including EC sensors, PH sensors, pressure sensor and flow sensor, it is described
EC sensors and PH sensors be arranged on mother liquor tank bottom sides, EC values and pH value for detecting mother liquor in mother liquor tank;Institute
The pressure sensor stated is arranged on main pipeline end, the pressure for detecting main pipeline;Described flow sensor is respectively mounted
On mother liquor tank water inlet pipe, mother liquor tank drain pipe and main pipeline, the flow for detecting turnover mother liquor tank and main pipeline;Described
Essence amount fertilizer mechanism controller one end connection fertigation controller other end connection essence amount fertilizer mechanism, fertigation controller
Output signal control essence amount fertilizer mechanism action;Described agitator controller one end connection fertigation controller other end connects
Connect agitator motor, the control stirring motor action of fertigation controller output signal;Described note fertilizer pump controller one end connects
Connect the fertigation controller other end fertile pump of connection note, the output flow of the fertile pump of fertigation controller output signal regulation note.
Described system human-computer interaction module can realize man-machine interaction, be easy to expert and kind landlord that crop growing state is input into center at any time
Control unit is so that fertigation intelligent decision expert system software module makes decisions, including host computer, liquid crystal display, keyboard
And mouse, described host computer is used to install each software of central control unit;Described liquid crystal display, keyboard and mouse are equal
It is connected with host computer by data wire.
Described fertigation status monitoring and online fault detection system are applied for real-time detection whole system in irrigation
State in the process of fertilizer and failure and central control unit, the Department of Automation of central control unit are fed back to by system bus
System error handle software module is made corresponding operation and is alarmed by fertigation control subsystem again.
A kind of control method of the field water fertilizer integral intelligent managing and control system based on Multi-source Information Fusion of the present invention, step
It is as follows:
1) weather forecast query reception work:When weather forecast query is received, operating personnel utilize GPRS communication module, lead to
The data of weather forecast interface of National Meteorological Bureau's offer is provided, is accessed central meteorogical phenomena database from Chinese meteorological network, inquired about real-time day
Gas forecasts, receives data and be sent to weather forecast query receiving subsystem, then transfer data to central control by system bus
Unit processed, makes fertigation decision-making and provides real-time weather forecast data for central control unit.
2) meteorological real-time data acquisition work:During meteorological real-time data acquisition, soil moisture sensor, wind speed are passed
Sensor, air-temperature sensor, optical sensor and rain sensor are conveyed by the data that sensor data acquisition bus will be gathered
To in real-time data acquisition controller, it is single that real-time data acquisition controller sends data to center control by system bus
Unit, the fertigation intelligent decision expert system software module of central control unit makes fertigation decision-making.
3) fertigation decision-making work:Fertigation decision-making is according to real-time weather and big Tanaka's soil moisture, wind speed, gas
Temperature, illumination, with reference to weather forecast prediction, need the water to need fertilizer according to the various field crop anniversaries growths of historical storage in cloud computing platform
Amount, fertigation time and the scene description to crop growing state, fertigation intelligent decision expert system software module is by four
Data collaborative treatment is planted, optimization produces optimal fertigation decision-making, and four kinds of data collaboratives are using eca rule treatment mechanism.
Definition:One eca rule is a triple, is defined as R=(E, C, A).Wherein, E is to activate the regular thing
Part;C is condition set, is used to reflect the different situations in environment;A is operation set (or set of actions).C is commonly referred to as object herein
Variable.Object variable is the characteristic or parameter of the influence workflow flow path selection being related in data flow, abbreviation variable.Variable is with xi
To represent, variables collection is designated as X={ x1,x2,…,xk}.Variable xiSpan be domain, use symbol DiTo represent.
Define X={ x1,x2,x3,x4};x1It is local real time meteorological data, x2It is the historical data of crop growth, x3For
Data of weather forecast, x4It is the scene description data of crop growing state.
D1={ data such as sensor detection crop field temperature, humidity, intensity of illumination, wind speed };
D2={ growth of crop anniversary in former years needs water fertilizer requirement, the data of fertigation time };
D3={ data such as weather forecast temperature, rainfall, humidity, illumination, wind speed };
D4={ scene such as the growth of cereal crop seedlings, growing way, pest and disease damage to crops description data };
{ essence amount fertilizer motor speedup, essence amount fertilizer decelerating through motor, the fertile pump of note open, note fertile pump pass, magnetic valve opens A=, electromagnetism
Valve is closed, stirring motor is opened, stirring motor is closed }
E={ strategy 1, strategy 2, strategy 3 }
Strategy 1:Irrigate:Weather is normal, and soil moisture reaches default lower limit value, starts to irrigate;When humidity reaches crop
After the suitable appropriateness of growth, stop irrigating.
Strategy 2:Fertigation:The water is needed to need fertilizer according to the various field crop anniversaries growths of historical storage in cloud computing platform
Amount, fertigation time and the scene description to crop growing state, carry out the control of dose, to the time of applying fertilizer is needed, need
Apply fertilizer, crop growing state is bad, it is necessary to apply fertilizer, fertilising is carried out in the case of irrigation.
Strategy 3:Following three days weather conditions of weather forecast, rainy and precipitation meets the water requirement of plant growth, no
Irrigated, the water requirement of plant growth is unsatisfactory for without rain or rainy but precipitation, irrigated.
Statistical average temperature T0, humidity H0, intensity of illumination L0, wind speed V0 in the same time in nearly 3 years;Weather forecast
Data temperature T2, wind speed V2, humidity H2, intensity of illumination L2, air pressure P2;The real-time parameter temperature T1 that measures, humidity H1, illumination are strong
Degree L1, wind speed V1, air pressure P1.According to equation below
Data to measuring are processed, wherein K1Situations such as to have sleet on the same day in nearly 3 years weighted value (value model
Enclose 1-10), K2Situations such as having sleet for weather forecast weighted value (span 1-10), K3It is historical data weighted value (1-10),
K4It is data of weather forecast weighted value (span 1-10).
Setting judges the critical value S0 of change in weather.
Work as S<During S0, represent that weather is normal, can be irrigated or fertigation.
As S >=S0, change in weather is represented, have the probability of sleet big, do not irrigated or fertigation.
4) fertigation execution work:During fertigation execution work, the filling in central control unit is first passed through
Irrigate fertilising intelligent decision expert system software module and make fertigation decision-making, fertigation model and precision irrigation fertilising algorithm
Software module sets up fertigation and fertilizer further according to the decision-making that fertigation intelligent decision expert system software module is made
Mother liquor dynamic regulation Mathematical Modeling, so that it is determined that optimization algorithm realizes that precision irrigation applies fertilizer;Central control unit applies irrigation
Fertilizer and fertilizer mother liquor dynamic regulation Mathematical Modeling send fertigation control subsystem, fertigation control to by system bus
The fertigation controller control essence amount fertilizer distributor and head pivot device of subsystem complete specific fertigation operation.