CN104663368B - Feedback control-based farmland irrigation system and method - Google Patents
Feedback control-based farmland irrigation system and method Download PDFInfo
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- CN104663368B CN104663368B CN201510101748.5A CN201510101748A CN104663368B CN 104663368 B CN104663368 B CN 104663368B CN 201510101748 A CN201510101748 A CN 201510101748A CN 104663368 B CN104663368 B CN 104663368B
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- soil moisture
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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
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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
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Soil Sciences (AREA)
- Fertilizing (AREA)
Abstract
The invention relates to a feedback control-based farmland irrigation system and method. The method comprises the steps: storing parameters of crop types, crop growth stage division, each growth stage time T, a needed soil moisture content required value X of each growth stage, a needed soil moisture content required lower limit value Y of each growth stage, and an irrigation quota Z of each growth stage into a control center computer; calculating the current growth stage of crops by the control center computer. A soil moisture content sensor is used for collecting farmland soil moisture content information, and the control center computer is used for performing analytical judgment on the soil moisture content information and weather information and then controlling irrigation, so the aim of automatically irritating farmlands can be achieved. The method is simple and efficient in implementation, is intuitive in operation and easy to understand, and is obvious in water saving; compared with an extensive irrigation method, water is saved by more than 40 percent; few-person operation or unattended operation can be truly realized, and the labor cost is greatly reduced.
Description
Technical field
The present invention relates to irrigation and water conservancy areas of information technology, and in particular to a kind of farm irrigation system based on feedback control
And method.
Background technology
Used as large agricultural country, Water Consumption in Agriculture accounts for 80% of total water consumption or so for China, but due to agricultural irrigation efficiency
Universal low, the utilization rate of water resource is only 45%, and the high country of water utilization rate is up to 70%～80%, and China north
Square each province's water resource famine, for many years using traditional approach for plant water low not only efficiency, high cost and waste ten
Divide to weigh.Thus, agricultural irrigation water is solved the problems, such as, it is very important for the in short supply of water resource is alleviated.
Developed from traditional abundant irrigation to insufficient irrigation, forecast, actual dynamic management are monitored to Irrigation Water.
Soil tilth is monitored using sensor, the automation of irrigation management is realized.High-efficiency agriculture and precision agriculture require that we must
The utilization rate of water resource must be improved.The efficient of water resource is really realized, only voucher item water-saving irrigation technique is impossible to solve
's.
The content of the invention
The present invention is in order to overcome the shortcomings of above technology, there is provided one kind realizes Precision Irrigation, improves water utilization rate
The farm irrigation system based on feedback control and method.
The present invention overcomes the technical scheme that its technical problem is adopted to be：
This farmland irrigation method based on feedback control, comprises the following steps.
A) by crop species, crop growth stage division, each growth phase time T, soil needed for each growth phase
Soil moisture content required value X, soil moisture content needed for each growth phase require that lower limit Y and each growth phase irrigate the ginseng of limit Z
Number is stored to control centre's computer；
B) sowed, control centre's computer is with the sowing time as start time point recorded time value T1, control centre
Computer is compared each growth phase time T of time value T1 and crop, calculates according to the division of crop growth stage
Go out when the growth phase residing for preceding crop；
C) control centre's computer receives weather information, and obtaining having following n days has moderate rain or heavy rain or n days in future light rain or not
Carry out weather information value of the n days without rain；
If d) there is moderate rain or heavy rain n days in future, control centre's computer controls are connected to the closed electromagnetic valve for pouring water pipe,
Do not irrigated；
If e) n days in future having light rain, soil moisture content sensor measures in real time soil moisture content value X1, when the soil of real-time measurement
Earth soil moisture content value X1 is less than soil moisture content needed for the growth phase and requires lower limit Y or want more than soil moisture content needed for the growth phase
Seek lower limit Y and less than during soil moisture content required value X, control centre's computer controls are connected to watering pours water needed for the growth phase
The magnetic valve of pipe is opened, and is irrigated, until X1 is more than or equal to soil moisture content required value X needed for the growth phase and less than the life
When the long stage irrigates limit Z, control centre's computer controls closed electromagnetic valve stops irrigating；When the soil moisture content of real-time measurement
Value X1 is more than needed for the growth phase during soil moisture content required value X, and control centre's computer controls closed electromagnetic valve is not filled
Irrigate.
If f) without rain, soil moisture content sensor measures in real time soil moisture content value X2 within following 3 days, when the soil of real-time measurement
Soil moisture content value X2 is less than soil moisture content needed for the growth phase and requires lower limit Y or require more than soil moisture content needed for the growth phase
Lower limit Y and less than during soil moisture content required value X, control centre's computer controls are connected to pouring water pipe needed for the growth phase
Magnetic valve open, irrigated, until X2 is more than or equal to soil moisture content required value X needed for the growth phase and less than the growth
When stage irrigates limit Z, control centre's computer controls closed electromagnetic valve stops irrigating；When the soil moisture content value of real-time measurement
X2 is more than needed for the growth phase during soil moisture content required value X, and control centre's computer controls closed electromagnetic valve is not filled
Irrigate.
G) control centre's computer sues for peace time value T1 and n, obtains time value T2, and control centre's computer is by time value
T2 growth phase time Ts each with crop is compared, and recalculates according to the division of crop growth stage and draws and work as preceding crop
Residing growth phase；
H) step c) is repeated to step g).
N values are 3 in above-mentioned steps c).
In order to realize rational fertilising, water is chased after, each stage crop fertilization required value is stored to control in above-mentioned steps a)
Central computer processed, control centre's computer is judged before step b) and/or step according to each stage crop fertilization required value
B) fertilising whether is needed after, when fertilising is needed, soil moisture content sensor measures in real time soil moisture content value X3, is somebody's turn to do when X3 is less than
Section crop fertilization required value in soil moisture content value when, control centre's computer controls be connected to pour water pipe magnetic valve open, enter
Row is irrigated, until when X3 is equal to the 80% of the soil moisture content required value X needed for the long stage, control centre's computer controls are connected to
The closed electromagnetic valve of water pipe is poured, stops irrigating；When X3 is more than the soil moisture content value in the stage crop fertilization required value, in control
Heart computer controls are connected to the closed electromagnetic valve for pouring water pipe, are not irrigated.
In order to realize remotely control, also include passing through GPRS, 3G using remote control computer and/or intelligent movable equipment
Communication module is connected to control centre's computer and is calculated with obtaining soil moisture content measurement value sensor and remotely control control centre
The step of machine.
This based on feedback control farmland fill system, including Crop Information management module, environmental information management module and
Intelligent irrigation module；The Crop Information management module includes control centre's computer, its storage crop species, plant growth rank
Section division, each growth phase time, soil moisture content required value, soil moisture in the soil needed for each growth phase needed for each growth phase
Feelings require that lower limit and each growth phase irrigate the parameter of limit；The environmental information management module includes being arranged at farmland
In and the soil moisture content sensor of control centre's computer is connected to and by network connection in control by GPRS, 3G module
The weather information data center of central computer；The intelligent irrigation module include be arranged at pouring water pipe on and pass through GPRS,
3G module is connected to the magnetic valve of control centre's computer.
In order to realize remotely control, also include being connected to control centre's computer remote control by GPRS, 3G module
Computer.
In order to realize remotely control, also include being connected to the intelligent movable of control centre's computer by GPRS, 3G module
Equipment.
The invention has the beneficial effects as follows：Agricultural land soil soil moisture information is collected and by control centre's computer by soil
Earth soil moisture information is analyzed control after judgement and irrigates with weather information, and farmland can reach the purpose of automatic irrigation.This design side
Method realize it is simple efficiently operate visual and understandable, water saving is obvious, and comparing extensive irrigation can economize on water more than 40%.And can accomplish real
Few man on duty in meaning even unmanned, greatlys save cost of labor.
Description of the drawings
Fig. 1 is the system attachment structure schematic diagram of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings 1 the present invention will be further described.
This farmland irrigation method based on feedback control, comprises the following steps.
A) by crop species, crop growth stage division, each growth phase time T, soil needed for each growth phase
Soil moisture content required value X, soil moisture content needed for each growth phase require that lower limit Y and each growth phase irrigate the ginseng of limit Z
Number is stored to control centre's computer；
B) sowed, control centre's computer is with the sowing time as start time point recorded time value T1, control centre
Computer is compared each growth phase time T of time value T1 and crop, calculates according to the division of crop growth stage
Go out when the growth phase residing for preceding crop；
C) control centre's computer receives weather information, and obtaining having following n days has moderate rain or heavy rain or n days in future light rain or not
Carry out weather information value of the n days without rain；
If d) there is moderate rain or heavy rain n days in future, control centre's computer controls are connected to the closed electromagnetic valve for pouring water pipe,
Do not irrigated；
If e) n days in future having light rain, soil moisture content sensor measures in real time soil moisture content value X1, when the soil of real-time measurement
Earth soil moisture content value X1 is less than soil moisture content needed for the growth phase and requires lower limit Y or want more than soil moisture content needed for the growth phase
Seek lower limit Y and less than during soil moisture content required value X, control centre's computer controls are connected to watering pours water needed for the growth phase
The magnetic valve of pipe is opened, and is irrigated, until X1 is more than or equal to soil moisture content required value X needed for the growth phase and less than the life
When the long stage irrigates limit Z, control centre's computer controls closed electromagnetic valve stops irrigating；When the soil moisture content of real-time measurement
Value X1 is more than needed for the growth phase during soil moisture content required value X, and control centre's computer controls closed electromagnetic valve is not filled
Irrigate.
If f) without rain, soil moisture content sensor measures in real time soil moisture content value X2 within following 3 days, when the soil of real-time measurement
Soil moisture content value X2 is less than soil moisture content needed for the growth phase and requires lower limit Y or require more than soil moisture content needed for the growth phase
Lower limit Y and less than during soil moisture content required value X, control centre's computer controls are connected to pouring water pipe needed for the growth phase
Magnetic valve open, irrigated, until X2 is more than or equal to soil moisture content required value X needed for the growth phase and less than the growth
When stage irrigates limit Z, control centre's computer controls closed electromagnetic valve stops irrigating；When the soil moisture content value of real-time measurement
X2 is more than needed for the growth phase during soil moisture content required value X, and control centre's computer controls closed electromagnetic valve is not filled
Irrigate.
G) control centre's computer sues for peace time value T1 and n, obtains time value T2, and control centre's computer is by time value
T2 growth phase time Ts each with crop is compared, and recalculates according to the division of crop growth stage and draws and work as preceding crop
Residing growth phase；
H) step c) is repeated to step g).
N values are 3 in step c).For most of crop, typically judged in 3 days weather information whether rainfall with
The comparison of soil moisture content value can meet control accuracy, and being able to ensure that again does not affect the growth of crop.By model above construction,
Farmland can reach the purpose of automatic irrigation.This method for designing realizes that simply efficiently operation is visual and understandable, and water saving is obvious, compares slightly
Putting type and irrigate can economize on water more than 40%.And few man on duty truly or even unmanned can be accomplished, greatly save artificial
Cost.
Each stage crop fertilization required value can also be stored to control centre's computer, control centre's meter in step a)
Calculation machine judges fertilising whether is needed before step b) and/or after step b) according to each stage crop fertilization required value, when need
When applying fertilizer, soil moisture content sensor measures in real time soil moisture content value X3, when X3 is less than the moisture in the soil in this section of crop fertilization required value
During feelings value, control centre's computer controls are connected to the magnetic valve unlatching for pouring water pipe, are irrigated, until X3 is equal to the long rank
Duan Suoxu soil moisture content required value X 80% when, control centre's computer controls be connected to pour water pipe closed electromagnetic valve, stop
Only irrigate；When X3 is more than the soil moisture content value in the stage crop fertilization required value, control centre's computer controls are connected to pouring
The closed electromagnetic valve of water pipe, is not irrigated.It is achieved that to being sentenced according to soil moisture content during crop fertilization and fertilising
It is disconnected whether to need to chase after the purpose of water, further increase this multifunctionality based on the farmland irrigation method of feedback control.
Can also include connecting by GPRS, 3G communication module using remote control computer and/or intelligent movable equipment
The step of control centre's computer is to obtain soil moisture content measurement value sensor and remotely control control centre computer.Remotely
Control computer and intelligent movable equipment can pass through the soil moisture content shape that GPRS, 3G module obtain farmland from control centre's computer
State, while magnetic valve open and close can be realized with remotely control control centre computer, to realize remotely control field irrigation,
Change the purpose of field irrigation state.Further ensure that the controllability to farmland moisture condition.
The invention further relates to a kind of farmland fill system based on feedback control, including Crop Information management module, environment letter
Breath management module and intelligent irrigation module；The Crop Information management module includes control centre's computer, its storage crop
Species, crop growth stage division, each growth phase time, soil moisture content required value, per all one's life needed for each growth phase
Soil moisture content needed for the long stage requires that lower limit and each growth phase irrigate the parameter of limit；The environmental information management mould
Block includes being arranged in farmland and is connected to the soil moisture content sensor of control centre's computer by GPRS, 3G module and leads to
Network connection is crossed in the weather information data center of control centre's computer；The intelligent irrigation module includes being arranged at watering pours water
The magnetic valve of control centre's computer is connected on pipe and by GPRS, 3G module.The invention further relates to a kind of based on feedback control
The farmland fill system of system can realize the above-mentioned farmland irrigation method based on feedback control.The design of three modules can be significantly
The adaptability of extension irrigation system, by collecting different plant growth information and environmental information, irrigates with reference to reasonable disposition and limits
Condition processed, can reach the effect in the i.e. applicable most of farmland of easy configuration, greatly reduce cost of labor and use cost.And
Embedded development can be realized by Internet of Things technology, technology autgmentability is strong.
Can also include being connected to control centre's computer remote control computer by GPRS, 3G module and pass through
GPRS, 3G module are connected to the intelligent movable equipment of control centre's computer.Remote control computer and intelligent movable equipment
The soil moisture content state that GPRS, 3G module obtain farmland from control centre's computer can be passed through, while can be with remotely control control
Heart computer, realizes magnetic valve open and close, to realize remotely control field irrigation, changes the purpose of field irrigation state, section
Personnel cost is saved, it is convenient and practical.
Claims (4)
1. a kind of farmland irrigation method based on feedback control, it is characterised in that：Comprise the following steps：
A) by crop species, crop growth stage division, each growth phase time T, soil moisture content needed for each growth phase
Required value X, soil moisture content needed for each growth phase require that lower limit Y and each growth phase are irrigated the parameter of limit Z and deposited
Store up to control centre's computer；
B) sowed, with the sowing time as start time point recorded time value T1, control centre calculates control centre's computer
Machine is compared each growth phase time T of time value T1 and crop, calculates according to the division of crop growth stage and works as
Growth phase residing for preceding crop；
C) control centre's computer receives weather information, obtains having moderate rain or heavy rain or n days in future to have light rain or future n following n days
Day weather information value without rain；
If d) there is moderate rain or heavy rain n days in future, control centre's computer controls are connected to the closed electromagnetic valve for pouring water pipe, do not enter
Row is irrigated；
If e) n days in future having light rain, soil moisture content sensor measures in real time soil moisture content value X1, when the soil moisture in the soil of real-time measurement
Feelings value X1 is less than soil moisture content needed for the growth phase and requires lower limit Y or more than under soil moisture content requirement needed for the growth phase
Limit value Y and pour water pipe less than needed for the growth phase during soil moisture content required value X, control centre's computer controls are connected to
Magnetic valve is opened, and is irrigated, until X1 is more than or equal to soil moisture content required value X needed for the growth phase and less than the growth step
When section irrigates limit Z, control centre's computer controls closed electromagnetic valve stops irrigating；When soil moisture content value X1 of real-time measurement
More than during soil moisture content required value X, control centre's computer controls closed electromagnetic valve is not irrigated needed for the growth phase；
F) if 3 days futures are without rain, i.e. n=3, then soil moisture content sensor measures in real time soil moisture content value X2, when real-time measurement
Soil moisture content value X2 is less than soil moisture content needed for the growth phase and requires lower limit Y or more than soil moisture content needed for the growth phase
Require lower limit Y and less than during soil moisture content required value X, control centre's computer controls are connected to pouring needed for the growth phase
The magnetic valve of water pipe is opened, and is irrigated, until X2 is more than or equal to soil moisture content required value X needed for the growth phase and less than this
When growth phase irrigates limit Z, control centre's computer controls closed electromagnetic valve stops irrigating；When the soil moisture in the soil of real-time measurement
Feelings value X2 is more than needed for the growth phase during soil moisture content required value X, and control centre's computer controls closed electromagnetic valve is not carried out
Irrigate；
G) control centre's computer sues for peace time value T1 and n, obtains time value T2, control centre's computer by time value T2 with
The each growth phase time T of crop is compared, and recalculates according to the division of crop growth stage and draws when residing for preceding crop
Growth phase；
H) step c) is repeated to step g).
2. the farmland irrigation method based on feedback control according to claim 1, it is characterised in that：Will in the step a)
Each stage crop fertilization required value is stored to control centre's computer, and control centre's computer is according to each stage crop fertilization
Required value judges fertilising, when fertilising is needed, soil moisture content sensor reality whether are needed before step b) and/or after step b)
When measure soil moisture content value X3, when X3 be less than the stage crop fertilization required value in soil moisture content value when, control centre's computer control
System is connected to the magnetic valve unlatching for pouring water pipe, is irrigated, until X3 is equal to the soil moisture content required value X needed for the long stage
When 80%, control centre's computer controls are connected to the closed electromagnetic valve for pouring water pipe, stop irrigating；When X3 makees more than the stage
Thing fertilising required value in soil moisture content value when, control centre's computer controls be connected to pour water pipe closed electromagnetic valve, do not carry out
Irrigate.
3. the farmland irrigation method based on feedback control according to claim 1, it is characterised in that：N in the step c)
Value is 3.
4. the farmland irrigation method based on feedback control according to claim 1 and 2, it is characterised in that：Also include utilizing
Remote control computer and/or intelligent movable equipment are connected to control centre's computer to obtain by GPRS, 3G communication module
The step of soil moisture content measurement value sensor and remotely control control centre computer.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104904571A (en) * | 2015-06-25 | 2015-09-16 | 苏州工业职业技术学院 | Intelligent farmland irrigation device and control method thereof |
| CN105230450B (en) * | 2015-09-15 | 2020-11-17 | 中国农业大学 | Intelligent irrigation rapid diagnosis device and method |
| CN105684838A (en) * | 2015-10-28 | 2016-06-22 | 广西慧云信息技术有限公司 | Rotational irrigation system and method for plants according to environmental parameters |
| CN105389663B (en) * | 2015-11-20 | 2020-10-09 | 天津市农业技术推广站 | Farmland irrigation intelligent decision making system and method |
| CN105706860B (en) * | 2016-02-01 | 2018-08-31 | 云南俊联科技有限公司 | Water-saving irrigation based on cloud automatically controls and Information Management System |
| CN105941101B (en) * | 2016-06-21 | 2022-05-31 | 天津市土壤肥料工作站 | Intelligent irrigation and fertilization control method, device and system |
| CN106525636A (en) * | 2016-11-08 | 2017-03-22 | 广东省农业科学院蔬菜研究所 | Sensor for monitoring soil moisture content in real time, automatic irrigation system and irrigation method |
| CN106718694A (en) * | 2016-12-16 | 2017-05-31 | 华北水利水电大学 | Farmland irrigation method |
| CN108094370A (en) * | 2017-12-15 | 2018-06-01 | 河北省科学院应用数学研究所 | Control method of irrigation and device |
| CN108308005A (en) * | 2017-12-28 | 2018-07-24 | 合肥长天信息技术有限公司 | A kind of intelligence farm irrigation system |
| CN111158326B (en) * | 2020-01-03 | 2022-11-25 | 重庆特斯联智慧科技股份有限公司 | Intelligent water spray control method and system based on big data time-varying analysis |
| CN112598850A (en) * | 2020-12-25 | 2021-04-02 | 河南威盛润禾智能科技有限公司 | Irrigation area intelligent NFC charge control flow measurement method and device based on block chain |
| CN112868354A (en) * | 2021-01-15 | 2021-06-01 | 广州市粤诚农业科技有限公司 | Intelligent system for fertilization and irrigation |
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| CN1324949C (en) * | 2003-12-25 | 2007-07-11 | 中国农业大学 | Insufficient irrigation forecast and control method |
| JP2007097509A (en) * | 2005-10-05 | 2007-04-19 | Ntt Facilities Inc | All-weather water spray system |
| CN102487788A (en) * | 2011-12-15 | 2012-06-13 | 南京成风大气信息技术有限公司 | Intelligent spray irrigation discharge control system based on weather information services |
| CN103299882B (en) * | 2013-06-20 | 2015-11-25 | 北方民族大学 | Economize on water intelligent irrigation system in a kind of field, irrigated area |
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Address after: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 1 Building No. 6, Qilu Software Park (Business Plaza D block B515 room) Applicant after: Shandong pioneer Information Technology Co., Ltd. Address before: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 1 Building No. 6, Qilu Software Park (Business Plaza D block B515 room) Applicant before: SHANDONG FENGSHI AUTOMATIC SYSTEM CO., LTD. |
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