CN108770660A - A kind of automatic accurate drip irrigation system of mountainous region subregion and method based on photovoltaic power supply - Google Patents
A kind of automatic accurate drip irrigation system of mountainous region subregion and method based on photovoltaic power supply Download PDFInfo
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- CN108770660A CN108770660A CN201810476119.4A CN201810476119A CN108770660A CN 108770660 A CN108770660 A CN 108770660A CN 201810476119 A CN201810476119 A CN 201810476119A CN 108770660 A CN108770660 A CN 108770660A
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/16—Control of watering
- A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
Abstract
The present invention provides a kind of automatic accurate drip irrigation system of mountainous region subregion and method based on photovoltaic power supply, the system comprises trickle irrigation submodules, solar powered submodule, soil moisture content detection sub-module, liquid crystal display submodule, central processing unit submodule, wirelessly communicate submodule and remote server, the solar powered submodule respectively with trickle irrigation submodule, liquid crystal display submodule, central processing submodule is connected with wireless communication submodule, the central processing submodule also with wireless communication submodule, soil moisture content detection sub-module, liquid crystal display submodule and the connection of trickle irrigation submodule, the wireless communication submodule connection passes through wireless connection with remote server.It realizes and irrigates on demand, avoid overirrigation and waste water resource, and introduce meteorologic factor, trickle irrigation is controlled whether according to meteorologic factor to reach with this, reduce unnecessary water resource loss and energy consumption, reduce the workload of staff.
Description
Technical field
The present invention relates to water-saving irrigation field, especially a kind of mountainous region subregion based on photovoltaic power supply accurate trickle irrigation system automatically
System and method.
Background technology
China is located at the east in the world's largest continent-Eurasia, while being close to the world's largest ocean-peace again
Ocean, Land sea thermal contrast protrude, and deep effect is produced to China's weather.From southeastern coast toward Northwest inland, weather it is big
Property character in land gradually increases, and occurs moistening, semi-moist, semiarid, dry climate area successively.
In view of the climate characteristic in China, southwest will almost meet with dry season weather every year, the most prominent with Chongqing.This
The agricultural irrigation technologies in a little areas extremely fall behind, and almost only maintain existence by rainfall, when suffering from natural calamity as the dry season
When, seriously affect the harvest of crops.For this area, implements mountainous region and irrigate the certainty for having become water development.But it is real
When applying mountainous region and irrigating, due to by the mountainous region gradient, soil multifactor impacts such as area, soil property and irrigation method in flakes, because
And big more options from press sprinkler irrigation technique, from pressure pipe irrigation technology, drip irrigation by gravity technology and canal irrigation technology.
Currently, mountainous region irrigation system belongs to supplement irrigation and unified irrigation scope, unification is typically chosen during irrigating
All implement to irrigate, cannot carry out dividing region Precision Irrigation according to specific mountain soil water content, crops is caused to subtract
Production.
Invention content
The object of the present invention is to provide a kind of automatic accurate drip irrigation system of mountainous region subregion and method based on photovoltaic power supply, purport
It is irrigated solving existing mountainous region since the mountainous region gradient cannot achieve Precision Irrigation with height difference difference and lead to asking for crop production reduction
Topic is realized Precision Irrigation and is irrigated in real time, saves cost, and advantage is provided for the growth of crops.
To reach above-mentioned technical purpose, the present invention provides a kind of mountainous region subregion based on photovoltaic power supply accurate trickle irrigation automatically
System, including trickle irrigation submodule, solar powered submodule, soil moisture content detection sub-module, liquid crystal display submodule, center
Processor submodule, wireless communication submodule and remote server, the solar powered submodule respectively with trickle irrigation submodule,
Liquid crystal display submodule, central processing submodule with wireless communication submodule connect, the central processing submodule also with wirelessly
Communicate submodule, soil moisture content detection sub-module, liquid crystal display submodule and the connection of trickle irrigation submodule, the wireless communication
Submodule is connected passes through wireless connection with remote server.
Preferably, the trickle irrigation submodule includes water source project, water source main valve, check-valves, filter, solenoid valve and output
Kong Guan, water source is followed by the water source project, water source main valve, check-valves, filter, solenoid valve and delivery outlet pipe, the electricity
Magnet valve and delivery outlet pipe are respectively set multiple, and are separately positioned on different regions.
Preferably, the solar powered submodule includes solar panel, solar controller and accumulator, described
Solar panel is connected to solar controller, and the solar controller is respectively connected to accumulator and load, the storage
Battery is additionally coupled to load.
Preferably, the soil moisture content detection sub-module includes soil moisture sensor, optical sensor, Vegetation canopy
Humidity sensor, carbon dioxide sensor and analog-digital converter.
Preferably, the wireless communication submodule communicates for realizing with the data of remote server, receives remote service
The following precipitation and precipitation time information in nearly a period of time that device is obtained by internet.
The present invention also provides a kind of mountainous region subregion based on photovoltaic power supply accurate drip irrigation method automatically, utilizes above system
It realizes, includes the following steps：
S101, the current soil moisture content data for obtaining each area；
S102, the precipitation in acquisition following a period of time and precipitation time；
S103, according to current moisture content data and rainfall and precipitation time, calculate the following soil moisture content；
S104, the following moisture content of comparison and trickle irrigation threshold interval decide whether to carry out trickle irrigation.
Preferably, the calculation formula of the following soil moisture content is as follows：
RNot=RIt is modern(1+rQT)
RNotFor the soil moisture content after following a period of time；RIt is modernFor current soil moisture content；R is that soil moisture content experience refers to
Number, Q are the precipitation in following a period of time；T is the precipitation time in following a period of time.
Preferably, the step S104 is specially：
If the future soil moisture content is less than trickle irrigation bottom threshold value, trickle irrigation is carried out；When the following soil contains
When water rate is more than trickle irrigation upper threshold value, without carrying out trickle irrigation.
Preferably, the soil moisture content empirical index number by operating acquisition as follows：
M groups different regions are set, N number of time point is set, above system is taken to be carried out at the same time data acquisition in different regions,
The soil moisture content of different time points and different regions is obtained, and counts precipitation and precipitation time in adjacent time point, is counted
Empirical index number is calculated, and the empirical index number under different regions and different time points is averaged, the experience after obtaining averagely refers to
Number, and as soil moisture content empirical index number.
Preferably, described following a period of time is following 1 day or 2 days following.
The effect provided in invention content is only the effect of embodiment, rather than invents all whole effects, above-mentioned
A technical solution in technical solution has the following advantages that or advantageous effect：
Compared with prior art, the present invention is examined by the way that trickle irrigation submodule, solar powered submodule, soil moisture content is arranged
Submodule, liquid crystal display submodule, central processing unit submodule and wireless communication submodule are surveyed, is realized through microcontroller to trickle irrigation
Process carries out real-time control, and central processing unit beats Push And Release according to the exact value of collected soil moisture content to control solenoid valve
It closes, is irrigated on demand to realize, avoid overirrigation and waste water resource, and introduce meteorologic factor, reached according to gas with this
As because usually controlling whether trickle irrigation, reducing unnecessary water resource loss and energy consumption, reducing the workload of staff.
By using solar powered, solve the problems, such as that mountain area power supply is difficult and environmentally protective, realize sustainable profit
With.
By the way that subregion is arranged, fully considers that the humidity condition of different regions, subregion are irrigated, save water resource, and be conducive to agriculture
Plant growth.
In addition gauge is carried out from punching to output channel, enabling soil, maximum area is irrigated and maximum in a short time
Irrigated in degree it is uniform, reduce soil it is uneven because irrigating due to the case where causing water resource waste.
Submodule is sent to client in time to irrigating information by radio communication, realizes the real-time prison to irrigating process
Control.
Description of the drawings
Fig. 1 is a kind of automatic accurate drip irrigation system of mountainous region subregion based on photovoltaic power supply provided in the embodiment of the present invention
Structure diagram；
Fig. 2 is a kind of trickle irrigation sub-modular structure block diagram provided in the embodiment of the present invention；
Fig. 3 is a kind of driving circuit for electromagnetic valve figure provided in the embodiment of the present invention；
Fig. 4 is a kind of solar powered sub-modular structure block diagram provided in the embodiment of the present invention；
Fig. 5 is a kind of reduction voltage circuit figure provided in the embodiment of the present invention；
Fig. 6 is a kind of method flow diagram of mountainous region subregion accurate trickle irrigation automatically provided in the embodiment of the present invention.
Specific implementation mode
In order to clearly illustrate the technical characterstic of this programme, below by specific implementation mode, and its attached drawing is combined, to this
Invention is described in detail.Following disclosure provides many different embodiments or example is used for realizing the different knots of the present invention
Structure.In order to simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.In addition, the present invention can be with
Repeat reference numerals and/or letter in different examples.This repetition is that for purposes of simplicity and clarity, itself is not indicated
Relationship between various embodiments and/or setting is discussed.It should be noted that illustrated component is not necessarily to scale in the accompanying drawings
It draws.Present invention omits the descriptions to known assemblies and treatment technology and process to avoid the present invention is unnecessarily limiting.
It is automatically accurate that it is provided for the embodiments of the invention a kind of mountainous region subregion based on photovoltaic power supply below in conjunction with the accompanying drawings
Drip irrigation system and method are described in detail.
As shown in Figure 1, the embodiment of the invention discloses a kind of mountainous region subregion based on photovoltaic power supply accurate trickle irrigation system automatically
System, including trickle irrigation submodule, solar powered submodule, soil moisture content detection sub-module, liquid crystal display submodule, centre
Manage device submodule and wireless communication submodule, the solar powered submodule respectively with trickle irrigation submodule, liquid crystal display submodule
Block, central processing submodule with wireless communication submodule connect, the central processing submodule also with wirelessly communicate submodule, soil
Earth moisture content detection sub-module, liquid crystal display submodule and the connection of trickle irrigation submodule, wireless communication submodule connection and
Remote server passes through wireless connection.
The trickle irrigation submodule is for controlling trickle irrigation process；
The solar powered submodule is used to be powered load using solar energy；
The soil moisture content detection sub-module is for detecting the current moisture content of soil；
The liquid crystal display submodule is for showing each department soil moisture content data；
Work of the central processing unit submodule for other each modules of control system；
The wireless communication submodule is used to receive the following precipitation and precipitation that remote server is obtained by internet
Temporal information.
As shown in Figure 2,3, the trickle irrigation submodule includes water source project, water source main valve, check-valves, filter, solenoid valve
With delivery outlet pipe, the quantity of solenoid valve and corresponding delivery outlet pipe is can be set according to actual needs, and is placed on different areas,
Four-way solenoid valve is individually positioned in the area of the four corners of the world four in embodiments of the present invention, delivery outlet pipe is exported with solenoid valve
Hold the water pipe of equidistant punching processing below the work of connection.The solenoid valve is that rated voltage is the electricity that 12V rated power is 2W
Magnet valve controls solenoid valve using the relay with low level triggering and 15V power supplies as solenoid valve control switch with this
Break-make.
As shown in Figure 4,5, the solar powered submodule includes solar panel, solar controller and electric power storage
Pond, the solar panel are connected to solar controller, and the solar controller is respectively connected to accumulator and load,
The accumulator is additionally coupled to load.It is described load include trickle irrigation submodule, liquid crystal display submodule, central processing submodule and
Wirelessly communicate submodule.When daytime is sunny, solar panel is charged by solar controller to load, is collected into
Extra electricity can also simultaneously charge to accumulator, it is automatic by solar controller after accumulator is fully charged
Stop charging process, when night or rainy weather, solar energy is insufficient, accumulator can be utilized to be powered load,
In the course of work, the display screen of solar controller can be with the charged state of real-time display accumulator and accumulator terminal electricity
Pressure.The voltage power supply parameter of the solar panel, solar controller and accumulator is in 12V or so.
The solar powered submodule further includes reduction voltage circuit.Since liquid crystal display submodule drives for 5V voltages in system
It is dynamic, therefore 12V voltages are carried out by decompression processing using reduction voltage circuit, it is down to 5V, so that liquid crystal display submodule carries out driving work
Make.
The soil moisture content detection sub-module includes soil moisture sensor, optical sensor, Vegetation canopy humidity biography
Sensor, carbon dioxide sensor and analog-digital converter.The probe of soil moisture sensor is inserted into underground, the signal that will be got
It is sent to analog-digital converter, the analog-digital converter is converted to digital quantity by the analog quantity that soil moisture sensor measures,
Data are handled so that central processing submodule is convenient.It is to vegetation using soil moisture sensor as main monitoring means
No water shortage carries out status monitoring.
The optical sensor, Vegetation canopy humidity sensor, carbon dioxide sensor for monitoring location in real time
The water evaporation quantity of domain vegetation realizes the monitoring to vegetation growth state, passes through optical sensor, Vegetation canopy humidity sensor
The photosynthetic efficiency, the effciency of respiratory and evaporation efficiency that device, carbon dioxide sensor monitor vegetation respectively carry out fast slowdown monitoring, can be with
Know whether vegetation is in exsiccosis, whether water shortage carries out status monitoring to vegetation as supplementary means to realize it.
The liquid crystal display submodule uses the LCD MODULE of model 12864, the module to be driven for 5V voltages,
The threshold value of the moisture content in each area pre-set soil moisture content is shown when work.
The central processing unit submodule is the microcontroller of model STC89C52RC, possess 8 dexterous bit CPUs and
System programmable flash, using flexible, range are wider.
The wireless communication submodule chooses the technical grade gsm module of model TC35I, supports Chinese short message intercommunication, leads to
It crosses AT instructions and realizes telecommunication.The communication module has that communication cost is low, reliability is high, good confidentiality and strong antijamming capability
The advantages that.The module communicates for realizing with the data of remote server, when remote server obtains nearly one section by internet
The interior following precipitation and precipitation time information, and it is sent to wireless communication submodule, for whether carrying out trickle irrigation progress
Analysis decision.
In embodiments of the present invention, according to preset setting for subregion trickle irrigation is carried out according to the area of all directions four
Meter, trickle irrigation submodule four-way solenoid valve in the block is distributed on the four direction of all directions, soil moisture content detection sub-module
It is detected in four tunnel of all directions.When system works, four regional sensors by the data of the soil moisture content detected and
The following precipitation data that wireless communication submodule obtains is sent to the microcontroller of central processing unit submodule, and microcontroller is to receiving
Data carry out analyzing processing, when soil moisture content be less than lower threshold when, the corresponding pin of microcontroller, which can be given, connects the pin
Relay signal wire be low level, relay due to low level trigger and so that switch is opened, solenoid valves work, work as soil
When earth moisture content is higher than upper limit value, relay switch is closed, and solenoid valve is stopped.Wirelessly communicate submodule opening solenoid valve
Off status is sent to client and is prompted.Liquid crystal display submodule shows the information such as the moisture content in each area in real time
Show, achievees the purpose that real time monitoring.
The embodiment of the present invention by be arranged trickle irrigation submodule, solar powered submodule, soil moisture content detection sub-module,
Liquid crystal display submodule, central processing unit submodule and wireless communication submodule, realize and are carried out to trickle irrigation process by microcontroller
Real-time control, central processing unit are opened and are closed to control solenoid valve according to the exact value of collected soil moisture content, to
Realize and irrigate on demand, avoid overirrigation and waste water resource, and introduce meteorologic factor, with this come reach according to meteorologic factor come
It controls whether trickle irrigation, reduces unnecessary water resource loss and energy consumption, reduce the workload of staff.
As shown in fig. 6, the embodiment of the invention also discloses a kind of mountainous region subregion based on photovoltaic power supply accurate trickle irrigation automatically
Method is realized using above system, is included the following steps：
S101, the current soil moisture content data for obtaining each area；
S102, the precipitation in acquisition following a period of time and precipitation time；
S103, according to current moisture content data and rainfall and precipitation time, calculate the following soil moisture content；
S104, the following moisture content of comparison and trickle irrigation threshold interval decide whether to carry out trickle irrigation.
In embodiments of the present invention, according to preset setting for subregion trickle irrigation is carried out according to the area of all directions four
Meter obtains the current moisture content information on the four direction of all directions respectively.
If being decided whether to carry out trickle irrigation according to current moisture content information, and without reference to weather conditions, tend to cause
Just terminate when trickle irrigation works, and rainfall occurred, has not only resulted in the waste of dripping irrigation water resource, especially water resource and obtain difficulty
Mountainous region area, and when rainfall is bigger or duration length causes waterlogging disaster, the health for being unfavorable for crops is raw
It is long.
Weather conditions, i.e. precipitation and precipitation time data are obtained by the wireless communication submodule in above system,
And current moisture content information is combined to calculate the following moisture content, calculation formula is as follows：
RNot=RIt is modern(1+rQT)
RNotFor the soil moisture content after following a period of time；RIt is modernFor current soil moisture content；R is that soil moisture content experience refers to
Number, Q are the precipitation in following a period of time；T is the precipitation time in following a period of time.
Variation of the soil moisture content after rainfall suffers from Seasonal influence, includes illumination, the wind in the season
Etc. factors, these factors the rate of soil water evaporation can be caused to change, therefore r empirically indexes are needed in Various Seasonal
Carry out experiment acquisition：
M groups different regions are set, N number of time point is set, above system is taken to be carried out at the same time data acquisition in different regions,
The soil moisture content of different time points and different regions is obtained, and counts precipitation and precipitation time in adjacent time point, is counted
Calculate empirical index number：
R=(RNot-RIt is modern)/QT
Empirical index number under different regions and different time points is averaged, the empirical index number after obtaining averagely, and
As soil moisture content empirical index number.
After obtaining the following soil moisture content, if the value is less than trickle irrigation bottom threshold value, above system is utilized with this
Trickle irrigation is carried out, when threshold value is more than trickle irrigation upper threshold value, without carrying out trickle irrigation operation.
Since the following soil moisture content is moisture content desired in following a period of time, by uncertain factor shadow
It rings, so following a period of time can choose smaller time interval, such as one day or two days time interval, can effectively reduce
Error.Trickle irrigation is controlled whether according to weather conditions, reduce unnecessary water resource loss and energy consumption, reduce with this to reach
The workload of staff.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of automatic accurate drip irrigation system of mountainous region subregion based on photovoltaic power supply, which is characterized in that including trickle irrigation submodule, too
Sun can power submodule, soil moisture content detection sub-module, liquid crystal display submodule, central processing unit submodule, wireless communication
Submodule and remote server, the solar powered submodule respectively with trickle irrigation submodule, liquid crystal display submodule, centre
Reason submodule and wireless communication submodule connect, the central processing submodule also with wirelessly communicate submodule, soil moisture content
Detection sub-module, liquid crystal display submodule and the connection of trickle irrigation submodule, the wireless communication submodule connection and remote service
Device passes through wireless connection.
2. a kind of automatic accurate drip irrigation system of mountainous region subregion based on photovoltaic power supply according to claim 1, feature exist
In, the trickle irrigation submodule include water source project, water source main valve, check-valves, filter, solenoid valve and delivery outlet pipe, water source according to
It is secondary to flow through the water source project, water source main valve, check-valves, filter, solenoid valve and delivery outlet pipe, the solenoid valve and delivery outlet
Pipe is respectively set multiple, and is separately positioned on different regions.
3. a kind of automatic accurate drip irrigation system of mountainous region subregion based on photovoltaic power supply according to claim 1, feature exist
In the solar powered submodule includes solar panel, solar controller and accumulator, the solar panel
It is connected to solar controller, the solar controller is respectively connected to accumulator and load, and the accumulator is additionally coupled to
Load.
4. a kind of automatic accurate drip irrigation system of mountainous region subregion based on photovoltaic power supply according to claim 1, feature exist
In, the soil moisture content detection sub-module include soil moisture sensor, optical sensor, Vegetation canopy humidity sensor,
Carbon dioxide sensor and analog-digital converter.
5. a kind of automatic accurate drip irrigation system of mountainous region subregion based on photovoltaic power supply according to claim 1, feature exist
In the wireless communication submodule communicates for realizing with the data of remote server, receives remote server and passes through internet
The following precipitation and precipitation time information of acquisition.
6. a kind of mountainous region subregion based on photovoltaic power supply accurate drip irrigation method automatically, described in claim 1-5 any one
System realize, which is characterized in that include the following steps：
S101, the current soil moisture content data for obtaining each area；
S102, the precipitation in acquisition following a period of time and precipitation time；
S103, according to current moisture content data and rainfall and precipitation time, calculate the following soil moisture content；
S104, the following moisture content of comparison and trickle irrigation threshold interval decide whether to carry out trickle irrigation.
7. accurate drip irrigation method, feature exist a kind of mountainous region subregion based on photovoltaic power supply according to claim 6 automatically
In the calculation formula of the future soil moisture content is as follows：
RNot=RIt is modern(1+rQT)
RNotFor the following soil moisture content；RIt is modernFor current soil moisture content；R is soil moisture content empirical index number, when Q is one section following
Interior precipitation；T is the precipitation time in following a period of time.
8. accurate drip irrigation method, feature exist a kind of mountainous region subregion based on photovoltaic power supply according to claim 6 automatically
In the step S104 is specially：
If the future soil moisture content is less than trickle irrigation bottom threshold value, trickle irrigation is carried out；When the following soil moisture content
When more than trickle irrigation upper threshold value, without carrying out trickle irrigation.
9. accurate drip irrigation method, feature exist a kind of mountainous region subregion based on photovoltaic power supply according to claim 6 automatically
In the soil moisture content empirical index number by operating acquisition as follows：
M groups different regions are set, N number of time point is set, takes above system to be carried out at the same time data acquisition in different regions, obtains
The soil moisture content of different time points and different regions, and precipitation and precipitation time in adjacent time point are counted, calculate warp
Index is tested, and the empirical index number under different regions and different time points is averaged, the empirical index number after obtaining averagely, and
As soil moisture content empirical index number.
10. accurate drip irrigation method, feature exist a kind of mountainous region subregion based on photovoltaic power supply according to claim 6 automatically
In described following a period of time is following 1 day or 2 days following.
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| CN107278832A (en) * | 2017-07-17 | 2017-10-24 | 桂东县山里青现代农业科技发展有限责任公司 | Farmland intelligent water-saving irrigation system and method |
| CN107980558A (en) * | 2017-12-07 | 2018-05-04 | 横琴七弦琴知识产权服务有限公司 | A kind of Precision Irrigation system |
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