CN206314343U - A kind of Fuzzy irrigation control system - Google Patents
A kind of Fuzzy irrigation control system Download PDFInfo
- Publication number
- CN206314343U CN206314343U CN201621387484.0U CN201621387484U CN206314343U CN 206314343 U CN206314343 U CN 206314343U CN 201621387484 U CN201621387484 U CN 201621387484U CN 206314343 U CN206314343 U CN 206314343U
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- Prior art keywords
- plc
- fuzzy
- control system
- irrigation
- irrigation control
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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
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Abstract
The utility model discloses a kind of Fuzzy irrigation control system, including PLC, power supply module, sensor assembly and photovoltaic water pump, wherein, the sensor assembly is connected with the PLC, the power supply module is that the PLC and the photovoltaic water pump are powered, the output end of the PLC connects the photovoltaic water pump by magnetic valve, and the magnetic valve connects fuzzy controller to control the electromagnetism valve opening to be irrigated.Using programmable controller PLC as control core, realized using fuzzy control technology and crop irrigation is controlled, to reduce system cost, improved and irrigate productivity effect, stability is high, and strong antijamming capability, service life is long.
Description
【Technical field】
The utility model belongs to automatic irrigation technical field, and in particular to a kind of Fuzzy irrigation control system.
【Background technology】
At present, China's field irrigation carries out irrigation and drainage or sprinkling irrigation using equipment such as water pumps mostly.In the greenhouse production of crop
In, using uncontrolled drip irrigation.In above-mentioned irrigation method, artificial operation is required for greatly, or control by the method for timing
Switch water valve processed, is likely to result in and waters not in time and cause Crops Drought, or is to pour dilutional hyponatremia to cause the big of water resource
Amount is wasted.And the pump power of agricultural irrigation is larger, it is desirable to provide electric power energy, it is generally the case that the vast rural area of China is needed
The region to be irrigated, farther out, it is necessary to build special line, or using modes such as diesel generations, not only trouble and is consumed apart from rural power grid
Substantial amounts of electric power resource, or enter action edge transmission using battery, and battery electric power storage cost is higher, and several years are accomplished by
Change once.
There is abundant solar energy resources in China, is mutually tied using these abundant solar energy resourceses and limited water resource
Close, carry out water-saving irrigation, be China's economy, society, an effective way of Ecological Sustainable Development.It is domestic by photovoltaic power supply skill
Art is combined that ken is relatively weak with water-saving irrigation technique, and the research field of China remains in small range, small
The greenhouse of scale.Compared with the developed country that economizes on water, the supporting hardware device of shortage and advanced management control technology irrigate skill
There is also many problems for art.Therefore, want to promote China's agricultural development, improve the high usage of water resource, realize agriculture
Industry is automated, and just must further develop the intelligent irrigation control system of suitable China's national situation, and rational filling
Control method is irrigate, to solve water resource and its energy problem.
【Utility model content】
Technical problem to be solved in the utility model is for above-mentioned of the prior art not enough fuzzy there is provided one kind
Irrigation control system, to solve the technology powered needed for the intelligent irrigation not high and from far-off regions of irrigation system in the prior art
Problem.
The utility model uses following technical scheme：
A kind of Fuzzy irrigation control system, including PLC, power supply module, sensor assembly and photovoltaic water pump, its
In, the sensor assembly is connected with the PLC, and the power supply module is the PLC and the photovoltaic
Water pump is powered, and the output end of the PLC connects the photovoltaic water pump by magnetic valve, and the magnetic valve connection is fuzzy
PID controller is irrigated to control the electromagnetism valve opening.
Further, the sensor assembly includes soil humidity sensor, level sensor and valve opening sensing
Device, the soil humidity sensor, level sensor and valve opening sensor pass through A/D modules and the PLC
Connection, for the soil humidity sensor is detected soil humidity information, level sensor detection cistern water level
Information and the magnetic valve opening information of valve opening sensor detection are transferred to the PLC.
Further, the soil humidity sensor is HA2001 type frequency domain reflectometers.
Further, the magnetic valve is also associated with automatic fertilization module, for the nutrient solution concentration EC values according to setting
Compare fertigation surely with pH value to carry out constant.
Further, the automatic fertilization module includes the fertile pump of note and acid filling pump, the magnetic valve and the fertile pump of the note and
Acid filling pump is connected, and the fertile pump of note and acid filling pump are connected by filter with the photovoltaic water pump, for automatic irrigation fertilising.
Further, EC values and pH value that EC/pH measuring instruments are used to measure fertilizer are provided with the filter, it is described
EC/pH measuring instruments are connected by A/D modules with the PLC, the input for controlling solution and acid solution.
Further, photoelectric coupling is provided between the PLC and the magnetic valve, for electrical isolation.
Further, the PLC is Siemens's s7-200 types.
Further, the PLC connects host computer by wireless data transmission module is used for remote monitoring.
Further, the power supply module includes solar panel and the electric power storage being connected with the solar panel
Pond.
Compared with prior art, the utility model at least has the advantages that：
The utility model controls irrigation system using PLC, and the magnetic valve is controlled by fuzzy controller
Aperture, the signal of the valve opening sensor is input in fuzzy PIC controller, irrigation volume can be more accurately controlled,
The intellectuality of irrigation system is substantially increased, intelligent water-saving irrigation is realized, improves system response time, reduce the reaction time.
Further, HA2001 types frequency domain reflectometer have handy and safe, quick and precisely, fixed point continuous, automation, wide amount
Journey, few demarcation, measurement accuracy are high, and dependable performance, it is ensured that normal work, operation and maintenance are simple.
Further, the system is also connected with automating fertilization control system, and full-automatic constant drop is carried out in drip irrigation form
Fill fertilising, it is desirable to the nutrient solution concentration EC values and pH value set according to user, meet the water needed for crops different growth phases
And fertilizer, liquid manure ratio, quantity delivered and service time are adjusted in good time, to reach the purpose of good quality and high output.
Further, setting photoelectric coupling is used for electrical isolation, improves system rejection to disturbance ability strong.
Further, remote mode and field mode can be divided into, both can be by host computer to solar energy automatic irrigation system
System carries out operational control, and field mode can be switched to again, all valves and motor are directly controlled at the scene, in order to system
Debugging, maintenance with safeguard.
Further, electric energy is provided for irrigation system using photovoltaic power supply module, has both solved and filled in irrigation region
Required energy problem is irrigate, there is good energy-saving and emission-reduction effect again, and protect ecological environment.
In summary, using programmable controller PLC as control core, realized using fuzzy control technology to crop irrigation
It is controlled, to reduce system cost, improves and irrigate productivity effect, stability is high, and strong antijamming capability, service life is long.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
【Brief description of the drawings】
Fig. 1 is the utility model system diagram；
Fig. 2 is the utility model PID controller schematic diagram.
【Embodiment】
In the utility model PLC as whole control system bottom floor units, to the data acquisition of whole control system and
Processing plays an important roll, and it completes the collection of soil moisture data, and the soil moisture data collected is changed by A/D
Module is changed, and the data changed are handled using fuzzy control technology, will output signal to magnetic valve, to realize
The purpose of automatic irrigation.Upper computer module monitors PLC internal data in real time simultaneously.
Refer to shown in Fig. 1, the utility model discloses a kind of Fuzzy irrigation control system, including PLC, power supply
Module, sensor assembly and photovoltaic water pump, wherein, the sensor assembly is connected with the PLC, the power supply module
It is that the PLC and the photovoltaic water pump are powered, the output end of the PLC connects the light by magnetic valve
Water pump is lied prostrate, the magnetic valve connects fuzzy controller to control the electromagnetism valve opening to be irrigated.
Wherein, the sensor assembly includes soil humidity sensor, level sensor and valve opening sensor, institute
Soil humidity sensor, level sensor and valve opening sensor is stated to be connected with the PLC by A/D modules,
For the soil humidity sensor is detected soil humidity information, level sensor detection cistern water level information with
And the magnetic valve opening information of valve opening sensor detection is transferred to the PLC.
Photoelectric coupling is provided between the PLC and the magnetic valve, for electrical isolation.The PLC controls
Device connects host computer by wireless data transmission module is used for remote monitoring.The power supply module include solar panel and with institute
State the battery of solar panel connection.
Determine input, the output variable of fuzzy controller：
In irrigation control system, field capacity is assign as irrigation critical point.According to the experience of man-made irrigation quota, with
Excessive water supply, adequate water supply, moderate water deficit, water deficit, serious water deficit as water supply judgment mechanism.Excessive moisture
Waning has serious inhibitory action to plant growth, and appropriate water deficit can strengthen plant and tree body osmotic adjustment function, limits
Consuming excessively for internal nutrient and energy is made, strengthens growth potential, and improve WUEL.Refer to shown in Fig. 2, at this
The control of greenhouse irrigation system is done in control system using two-dimensional fuzzy controller, is changed with soil moisture deviation and humidity deviation
Rate is used as two input variables for irrigating fuzzy controller.Soil moisture deviation is the soil moisture and work by the real-time Bian collection of system
What the optimum soil moisture of thing was relatively obtained.Make poor with soil moisture deviation and previous humidity sampled value deviation, then divided by
System communication cycle, obtains the deviation variation rate of soil moisture.In view of the actual conditions and control accuracy of greenhouse irrigation, soil
Relative humidity bound is respectively 85% and 75%, and optimum soil moisture takes median 80%, and soil humidity sensor is surveyed
The value obtained is mostly volume moisture content, and volumetric water content of soil and relative hydration magnitude relation are：Volume moisture content=field water holding
Amount × relative water content × soil weight.
The magnetic valve is also associated with automatic fertilization module, for entering according to the nutrient solution concentration EC values and pH value of setting
Row constant compares fertigation surely.The automatic fertilization module includes the fertile pump of note and acid filling pump, the magnetic valve and the fertile pump of the note
With the connection of acid filling pump, the fertile pump of note and acid filling pump are connected by filter with the photovoltaic water pump, for automatic irrigation fertilising.
EC values and pH value that EC/pH measuring instruments are used to measure fertilizer are provided with the filter, the EC/pH measuring instruments pass through A/D
Module is connected with the PLC, the input for controlling solution and acid solution.
Automatic fertilizing device specifically needs the major function met as follows：
(1) set-up function：EC values, pH value, fertilization time, the time for starting irrigation, the time interval time setting irrigated；
(2) timing controlled：Acid adding, the liquor charging of solution, stop liquid and be timed control；
(3) test function：Realize detection EC values, pH value in real time, and water-carrying capacity, fertile flow；
(4) online regulation and control：There is provided the suitable nutrient solution of crop for real-time monitoring EC values, pH value；
(5) control manually：It can be applied fertilizer with manually implemented individual irrigation；
(6) display function：Show the EC values currently measured, pH value in real time, can inquire about start irrigate time, irrigate
Time interval, present system time and irrigation time.
To carry out, constant is fixed to be applied the nutrient solution concentration EC values and pH value that the requirement of this control system is set according to user than drip irrigation
Fertilizer, adjusts liquid manure ratio, quantity delivered and service time, to reach good quality and high output in good time to meet crops different growth phases
Purpose.The fertile ratio of note is to carry out line closed loop regulation and control according to setting value by solution, acid (or alkali) liquid and irrigation water to realize, EC
Value and pH value control the running speed of the fertile pump of note and acid filling pump to control the input of solution and acid solution as feedback signal.System
Control parameter is EC values and pH value, and required precision EC values are ± 0.15mS/cm, and pH value is ± 0.15pH, 3 minutes stabilization time with
Interior, system overshoot is less than 15%.Automatic irrigation fertilising can accomplish that automatic irrigation is synchronous, can be realized and fill on time in units of minute
Fertilising is irrigate, control parameter is the time, and control accuracy is 10 seconds.
The nutrient solution mixed passes through the current signal through 4~20mA of transmitter output after EC, pH sensor measuring and amplifying
It is data signal to AD circuit conversions, PLC compares it with setting value SV, PLC is passed through according to deviation e
Control signal is converted into 4~20mA signals via D/A module after processing computing, variable-frequency governor is passed to, by Frequency Converter Control
The rotating speed n of ac motor, so as to realize nutrient solution EC values and pH value constant control.
It is preferred that, humidity sensor is HA2001 type frequency domain reflectometers, and the PLC control modules use siemens PLC
Series, the solar panel uses SHP200W-1P battery panel components, using the magnetic valve of rain bird PGA series, the light
Lie prostrate the photovoltaic water pump that water pump uses SHP0.7/30-24 models.
Inverter selection uses Siemens MM3117 model frequency converters, and Siemens's MM3117 frequency converters are a high performance logical
Use frequency converter.It has an analog input end, five digital quantity inputs, be provided simultaneously with an analog output and it is multiple after
Electrical output terminal mouthful, communication interface is connected using RS485 with host computer.With very powerful overload capacity, when electric current mistake
When carrying 1.4 times, 3s can be continued；When overload capacity is 140% nominal load current, the duration is 3 seconds, works as overload current
For 1.1 times when, the duration be 60 seconds；Frequency converter also has the defencive function such as overheat, over-pressed, under-voltage simultaneously.
Above content is only explanation technological thought of the present utility model, it is impossible to limit protection model of the present utility model with this
Enclose, it is every according to the utility model proposes technological thought, any change done on the basis of technical scheme each falls within this reality
Within protection domain with new claims.
Claims (10)
1. a kind of Fuzzy irrigation control system, it is characterised in that：Including PLC, power supply module, sensor assembly and photovoltaic
Water pump, wherein, the sensor assembly is connected with the PLC, and the power supply module is the PLC and institute
State photovoltaic water pump to power, the output end of the PLC connects the photovoltaic water pump, the magnetic valve connection by magnetic valve
Fuzzy controller is irrigated to control the electromagnetism valve opening.
2. a kind of Fuzzy irrigation control system according to claim 1, it is characterised in that：The sensor assembly includes soil
Earth humidity sensor, level sensor and valve opening sensor, the soil humidity sensor, level sensor and valve
Door jaw opening sensor is connected by A/D modules with the PLC, for the soil for detecting the soil humidity sensor
The electromagnetism valve opening letter of humidity information, the water level information of the cistern of level sensor detection and the detection of valve opening sensor
Breath is transferred to the PLC.
3. a kind of Fuzzy irrigation control system according to claim 2, it is characterised in that the soil humidity sensor is
HA2001 type frequency domain reflectometers.
4. a kind of Fuzzy irrigation control system according to claim 1, it is characterised in that the magnetic valve is also associated with certainly
Dynamic fertilising module, for carry out constant comparing fertigation surely according to the nutrient solution concentration EC values and pH value of setting.
5. a kind of Fuzzy irrigation control system according to claim 4, it is characterised in that：The automatic fertilization module includes
The fertile pump of note and acid filling pump, the magnetic valve are connected with the fertile pump of the note and acid filling pump, and the fertile pump of note and acid filling pump are by filtering
Device is connected with the photovoltaic water pump, for automatic irrigation fertilising.
6. a kind of Fuzzy irrigation control system according to claim 5, it is characterised in that：It is provided with the filter
EC/pH measuring instruments are used for the EC values and pH value for measuring fertilizer, and the EC/pH measuring instruments pass through A/D modules and the PLC
Connection, the input for controlling solution and acid solution.
7. a kind of Fuzzy irrigation control system according to claim 1, it is characterised in that：The PLC with it is described
Photoelectric coupling is provided between magnetic valve, for electrical isolation.
8. a kind of Fuzzy irrigation control system according to claim 1, it is characterised in that：The PLC is west gate
Sub- s7-200 types.
9. a kind of Fuzzy irrigation control system according to claim 1, it is characterised in that：The PLC passes through nothing
Line number transmission module connection host computer is used for remote monitoring.
10. a kind of Fuzzy irrigation control system according to claim 1, it is characterised in that：The power supply module is included too
Positive energy cell panel and the battery being connected with the solar panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387484.0U CN206314343U (en) | 2016-12-16 | 2016-12-16 | A kind of Fuzzy irrigation control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621387484.0U CN206314343U (en) | 2016-12-16 | 2016-12-16 | A kind of Fuzzy irrigation control system |
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| Publication Number | Publication Date |
|---|---|
| CN206314343U true CN206314343U (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621387484.0U Expired - Fee Related CN206314343U (en) | 2016-12-16 | 2016-12-16 | A kind of Fuzzy irrigation control system |
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| CN (1) | CN206314343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107852933A (en) * | 2017-11-14 | 2018-03-30 | 王巧丽 | A kind of Fuzzy irrigation control system and its irrigation method based on PLC |
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2016
- 2016-12-16 CN CN201621387484.0U patent/CN206314343U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107852933A (en) * | 2017-11-14 | 2018-03-30 | 王巧丽 | A kind of Fuzzy irrigation control system and its irrigation method based on PLC |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20171216 |