CN105580716A - Large-area multi-field-piece automatic water-saving irrigation three-level control system and use method thereof - Google Patents

Large-area multi-field-piece automatic water-saving irrigation three-level control system and use method thereof Download PDF

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Publication number
CN105580716A
CN105580716A CN201610108364.0A CN201610108364A CN105580716A CN 105580716 A CN105580716 A CN 105580716A CN 201610108364 A CN201610108364 A CN 201610108364A CN 105580716 A CN105580716 A CN 105580716A
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CN
China
Prior art keywords
water
irrigation
monitor terminal
monitoring station
control system
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CN201610108364.0A
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Chinese (zh)
Inventor
霍孟友
罗彦铭
顾雯雯
郑亚鹏
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山东大学
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Priority to CN201610108364.0A priority Critical patent/CN105580716A/en
Publication of CN105580716A publication Critical patent/CN105580716A/en

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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G25/00Watering gardens, fields, sports grounds or the like
    • A01G25/16Control of watering
    • A01G25/167Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/22Improving land use; Improving water use or availability; Controlling erosion
    • Y02A40/23Improving water use or availability; Controlling erosion
    • Y02A40/235Improving water use or availability; Controlling erosion in irrigated agriculture
    • Y02A40/237Efficient irrigation techniques, e.g. drip irrigation, sprinkler or spray irrigation
    • Y02A40/238Irrigation information systems

Abstract

The invention relates to a large-area multi-field-piece automatic water-saving irrigation three-level control system and a use method thereof. The three-level control system comprises a remote monitoring platform, at least one monitoring station and a plurality of monitoring terminals; the remote monitoring platform and the monitoring stations conduct data communication in a GPRS mode, and the monitoring stations and the monitoring terminals conduct data communication through a ZigBee network. Temperature and humidity data of field pieces is collected through temperature and humidity sensors of the monitoring terminals and compared with temperature and humidity threshold values pre-stored in ZigBee modules of the monitoring terminals; when conditions are met, an irrigation request is sent to the monitoring stations, and meanwhile management personnel can modify the temperature and humidity threshold values through the remote monitoring platform and issue the modified temperature and humidity threshold values to the monitoring stations. The three-level control system can achieve control over automatic water-saving irrigation of multiple field pieces in a large area, manpower cost is saved, water resources are saved, manual intervention can be carried out, and the purpose of reasonable water-saving irrigation is achieved.

Description

Large region many fields automatic water-saving irrigation three-stage control system and using method thereof

Technical field

The present invention relates to a kind of large region many fields automatic water-saving irrigation three-stage control system and using method thereof, belong to automaticIrrigation technique field.

Background technology

Day by day deficient and the progressively increase of human cost of freshwater resources make automatic water-saving irrigation technology become modernizationAgriculture, woods, herd, the important directions of sideline production water Irrigation Development. At present, for China agricultural large area land transformation, closeManage the length and breadth of land particularly the agriculture such as the Northeast, the Northwest, woods, herd, sideline production base, how to realize large region manyThe control of field automatic water-saving irrigation has been the outstanding problem that needs solution.

In recent years, the research of correlation irrigation control technology and method has obtained certain progress, wherein Chinese patent literatureCN102037888A discloses one " distributed network automatic irrigation control system and irrigation using method thereof ", this invention structureBuilt the two-stage distributed control system being made up of CSRC computer and irrigating unit, publication number is CN1951170APatent patent " remote controlled automated irrigation system based on public communication network and using method " has built with center-control levelWith the two-stage irrigation automation system of field controlled stage composition, but the subordinate's control system in these technical methods is only usedSingle-processor (CPU) completes the tasks such as the detection of field all the sensors, solenoid control, data communication, the asking of existenceTopic: (1) distribution line more and cause layout adjust difficulty; (2) existing controller hardware resource-constrained and fixing, expandsExhibition difficulty, not too suitable large area field is used; (3) lack important iirigation water source water supply as entire system and regulate controlLink processed, cannot realize the constant pressure water of water supply line and supply with.

In addition, when in for large region, plantation has multiple field of different crops, existing irrigation technique cannot be accomplishedSet different Irrigations according to different crops, apply comparatively single. Therefore, need design badly a kind of for greatlyThe irrigation system of region many fields different crops.

Summary of the invention

For the deficiencies in the prior art, the invention provides a kind of large region many fields automatic water-saving irrigation three-stage control system.

The present invention also provides a kind of making that above-mentioned large region many fields automatic water-saving irrigation three-stage control system irrigates of utilizingUse method.

Technical scheme of the present invention is as follows:

Large region many fields automatic water-saving irrigation three-stage control system, comprise remote monitoring platform, at least one monitoring station andSeveral monitor terminals; Between remote monitoring platform and monitoring station, carry out data communication in GPRS mode, monitoring station and monitoringBetween terminal, carry out data communication with ZigBee-network;

Described remote monitoring platform comprises server;

Described monitoring station comprises single-chip microcomputer, pump variable frequency controller, pressure of supply water sensor, GPRS module and ZigBeeModule; Single-chip microcomputer is connected with pump variable frequency controller, GPRS module and ZigBee module respectively by serial line interface, supplies waterPressure sensor is electrically connected with pump variable frequency controller;

Described monitor terminal comprises ZigBee module, soil temperature-moisture sensor, driving circuit for electromagnetic valve, magnetic valve; ZigBeeModule is electrically connected with soil temperature-moisture sensor, driving circuit for electromagnetic valve respectively, and driving circuit for electromagnetic valve and magnetic valve are electrically connectedConnect.

Preferably, described monitoring station also comprises three-phase electricity computation chip and teletransmission metering water meter, three-phase electricity computation chip and far awayPassing metering water meter is electrically connected with single-chip microcomputer respectively. The advantage of this design is, by installing the three-phase electricity computation chip of setting additionalWith teletransmission metering water meter, can make single-chip microcomputer obtain power consumption data and each irrigation water capacity or accumulative total water usage data,Be convenient to irrigation process.

Preferably, described monitor terminal also comprises solar panel, rechargeable battery and battery charging management circuit, the sunCan cell panel be connected with rechargeable battery by battery charging management circuit, rechargeable battery respectively with ZigBee module, soil temperatureHumidity sensor and driving circuit for electromagnetic valve electrical connection. The advantage of this design is, uses solar energy clean energy resource for monitoringTerminal provides electric power resource support.

Preferably, described single-chip microcomputer is selected STM32F103 chip. The benefit of this design is, the chip sexual valence of this modelThan high, with multiple serial line interfaces, measure and data communication control for water management, power consumption water consumption as iirigation water sourceSystem etc. has larger economic advantages.

Preferably, described pressure of supply water sensor is selected GB-3000FS pressure sensor. By the pressure sensor of this modelBe installed on the pressure of supply water in test lead road on vibration means for main pipe for supplying water road.

Preferably, described three-phase electricity computation chip is selected RN8302B chip. The benefit of this design is, single-chip microcomputer passes throughSPI serial ports obtains the power consumption data of monitoring station.

Preferably, described GPRS module is selected M35 module. The advantage of this design is, single-chip microcomputer utilize M35 module withRemote monitoring platform carries out data communication, irrigation control parameter, manual intervention instruction that receiving remote monitor supervision platform sends,Or send water measurement, power consumption information, status information of equipment, soil soil moisture content information etc. to monitor supervision platform.

Preferably, the ZigBee module in ZigBee module and the monitoring station in described monitor terminal is selected same modelZigBee module, ZigBee module is selected enhancement mode 8051CPU chip CC2530 module. The benefit of this design is,This model ZigBee module integrates 2.4GHzIEEE802.15.4, ZigBee and RF4CE several functions, monolithicMachine utilizes the ZigBee module networking on this model ZigBee module and several monitor terminals to carry out data communication, receivesThe irrigation solicited message of monitor terminal, status information, soil soil moisture content information, or to monitor terminal send irrigation control parameter,Irrigate instruction etc.

Preferably, described magnetic valve is selected IBV-101G DC electromagnetic valve. Utilize the DC electromagnetic valve of this model for fieldThe opening of one road water bypass line irrigation water, closing control.

Preferably, described driving circuit for electromagnetic valve is selected booster type translation circuit. The advantage of this design is, booster type changeChange circuit rechargeable battery energy storage is converted to electromagnetic valve work electricity consumption, the ZigBee module on monitor terminal is utilized an outputHold the output with level mode control driving circuit for electromagnetic valve, as: solenoid-driven electricity when output control terminal output high levelRoad output energy, opens battery valve, and solenoid-driven forbids exporting energy when output control terminal output low level, closesBattery valve.

Preferably, described soil temperature-moisture sensor is selected STH11 type temperature, humidity integrated transducer. This design goodBe in, temperature, humidity integrated transducer are arranged on the typical sampled point that corresponding water branch road irrigates land to monitoringZigBee module in terminal reads the soil moisture, the humidity information of temperature, the perception of humidity integrated transducer institute by serial ports,Control opening or closing of this way solenoid valve with this, adopt that integrated soil temperature-moisture sensor integrated level is high, cost is low,Convenient construction is installed, and saves the engineering time.

Preferably, described solar panel is selected the cell panel of polycrystalline silicon material. The benefit of this design is, solar-electricityPond working stability, cost are low, and the amount of capacity of solar panel depends on the work power consumption of magnetic valve.

Preferably, described rechargeable battery is selected lithium polymer battery. The benefit of this design is, lithium battery capacity is high, bodyLong-pending little, lightweight, security is good.

Preferably, described battery charging management circuit is selected the charging valve with solar cell MPPT maximum power point tracking functionReason integrated circuit. The benefit of this design is that the maximum power point of tracking solar cell panel automatically, realizes efficientlySolar energy is to the electric energy conversion of rechargeable battery.

Further preferred, described battery charging management circuit is selected CN3791 Charge Management integrated circuit.

A using method for large region many fields automatic water-saving irrigation three-stage control system, comprises the following steps:

(1) temperature, the humidity data in the soil temperature-moisture sensor Real-time Collection field of sampled point, and by temperature, humidity numberReportedly be defeated by the ZigBee module of monitor terminal;

(2) the ZigBee module of monitor terminal receives after temperature, humidity data and is stored in monitor terminal ZigBee moduleIn soil moisture upper and lower limit threshold value and the comparison of soil moisture upper limit threshold, when exceed soil moisture upper limit threshold or lower thanWhen soil moisture lower threshold, monitor terminal is sent and irrigates solicited message to monitoring station by ZigBee module;

(3) whether the solicited message decision-making that monitoring station sends according to monitor terminal starts irrigation water supply, need to enter if be judged to beWhen row is irrigated, monitoring station sends and irrigates order and send and start work order, water to pump variable frequency controller to monitor terminalPump frequency conversion controller drives pump motor to carry the irrigation water of setting pressure to vibration means for main pipe for supplying water road, receives to irrigate to start to refer toThe monitor terminal that order and soil moisture do not reach soil moisture upper limit threshold is all opened water and is propped up way solenoid valve and irrigate behaviourDo;

(4), in the time that monitor terminal detects that soil moisture reaches soil moisture upper limit threshold, monitor terminal is closed water and is propped upWay solenoid valve also sends and irrigates ending message to monitoring station, and monitoring station judges whether to need according to the irrigation ending message receivingFinish irrigation process, if desired finish to irrigate process monitoring station and stop to pump variable frequency controller transmission power cut-off orderOnly irrigation water supply.

Preferably, remote monitoring platform issues amended soil moisture upper and lower limit by GPRS network communication to monitoring stationThreshold value and soil moisture upper limit threshold, monitoring station receives on amended soil moisture upper and lower limit threshold value and the soil moistureAfter limit threshold value, be stored in ZigBee module, monitoring station utilizes the ZigBee module of self to send and repair to monitor terminal simultaneouslySoil moisture upper and lower limit threshold value after changing and soil moisture upper limit threshold are also stored in the ZigBee module of monitor terminal.

Preferably, remote monitoring platform is provided with networking client access function, has the administrative staff of authority can be at any oneCan on the computer of online, login remote monitoring platform interface, the some time according to weather forecast situation manual amendment by rainfallBetween some field soil moisture upper and lower limit threshold value in section, or some field in certain time period by rainfall is establishedPut irrigation inhibit command, and send in requisition for the monitoring station of adjusting or irrigating forbidden control by GPRS network communication.

Beneficial effect of the present invention is:

The present invention set up one formed by remote monitoring platform, at least one monitoring station and several monitor terminals fromMoving water-saving irrigation three-stage control system, a remote monitoring platform can be managed hundreds and thousands of monitoring stations, a monitoring stationBe responsible for the iirigation water source of regional area and supply with control, several monitor terminals complete the irrigation control of an independent field, because ofThis, three-stage control system can be realized the automatic water-saving irrigation control of the many fields in large region, has saved human cost, savingWater resource.

2. utilize cheap many CPU wireless networking communication technology, field of prior art is utilized to a CPU pipeThe method that reason controls all data acquisitions, break-make control, communicate by letter with Surveillance center is improved, and adopts a monitor terminalOnly be responsible for a soil temperature-moisture sensor and detect and a water branch road solenoid control, drop into less equipment costOvercome in prior art and concentrated to a CPU length and cause layout apart from complicated line, adjust difficult problem.

3. the present invention adopts the building block system combination of many CPU networking, is not subject to irrigation water branch road to count quantitative limitation, fieldNo matter have how many water branch roads as long as the monitor terminal of the quantity such as installation carries out correspondence to be controlled, get final product resource without real lavishlyExisting automatic water-saving control, the automatic water-saving irrigation control that is very suitable for different area field, particularly large field is used,Expansion difficulty or wasting of resources problem that prior art fixedly causes because of product port resource are overcome.

4. the monitoring station in the present invention is for the varying speed and constant pressure feed water control of field main pipeline, in the time that field need to be irrigatedConstant pressure water supply is just provided, prevents that pipeline from may reduce because of long-term overvoltage the problem of working life, ensured each use simultaneouslyThe confession hydrologic(al) budget of water branch road, water saving, economize on electricity and guarantee irrigation effect are consistent. This technology is that prior art is short of.

5. worked out the irrigation water control based on artificial experience for the different growth phases of variety classes crop in different fieldsPlanning chart processed, changed and automatically adjusts soil temperature and humidity control parameter according to the time, realized the water saving that meets plant growth ruleIrrigation control.

Administrative staff all can to carry out client-access remote monitoring according to authority by any computer that can surf the Net flatPlatform, checks irrigation process, equipment state, and can carry out manual intervention to irrigation process according to rainfall weather forecast etc.,Reach the objects such as water saving and prevention waterlogging.

7. all monitor terminal utilizations have the solar powered of solar cell MPPT maximum power point tracking function, effectively solveMonitor terminal work powerup issue and high efficiency transfer problem.

8. remote monitoring platform is shown irrigation situation, is checked soil soil moisture content, equipment state, once occur asking with electronic chartTopic or fault are very clear, facilitate system maintenance; Remote monitoring platform only has just biography filling down while variation according to timing nodeIrrigate and control parameter to monitoring station, other working time recrive-only equipment fault messages etc., communication data flow is little, saves logicalLetter cost.

Brief description of the drawings

Fig. 1 is the structural principle schematic diagram of automatic water-saving irrigation three-stage control system of the present invention.

Wherein: 1 is remote monitoring platform; 2 is monitoring station; 3 is monitor terminal; 4 is GPRS module; 5 is single-chip microcomputer;6 is ZigBee module; 7 is three-phase electricity computation chip; 8 is pump variable frequency controller; 9 is pressure of supply water sensor; 10For teletransmission metering water meter; 11 is soil temperature-moisture sensor; 12 is ZigBee module; 13 is driving circuit for electromagnetic valve;14 is magnetic valve; 15 is solar panel; 16 is battery charging management circuit; 17 is rechargeable battery.

Detailed description of the invention

Below by embodiment, also the present invention will be further described by reference to the accompanying drawings, but be not limited to this.

Embodiment 1:

The present embodiment provides a kind of large region many fields automatic water-saving irrigation three-stage control system, is introduced with two fields.This three-stage control system comprises remote monitoring platform, at least one monitoring station and multiple monitor terminal; Wherein, remote monitoringBetween platform and monitoring station, carry out data communication in GPRS mode, between monitoring station and monitor terminal, enter with ZigBee-networkRow data communication.

Remote monitoring platform 1 is selected the server monitoring software being installed, being had public network IP. Wherein, monitoring software isUtilize the establishment of the technology such as database, form, electronic chart, networking client, network service for automatic water-saving irrigationThe management application program of controlling, is achieved as follows function: the position of 1. showing each independent field in irrigated area with the form of electronic chartPut, the icon of border and monitoring station 2, monitor terminal 3 present positions, wherein the color of monitor terminal 3 icons is according to sevenThe soil dry humidity degree of color color representation monitor terminal 3 positions, redness of the skin or complexion representative arid partially, and purple representative waterlogging partially,The color of icon periodically refreshes automatically according to the soil humidity information receiving; It is automatic when mouse moves to a certain iconEject further information, as crop species, growth phase, status information of equipment etc.; 2. with the form system of menu item formDetermine irrigation project control table, table content comprise each independent field soil property composition, crop species and growth phase,The timing node of soil Temperature and Humidity Control parameter (temperature upper limit, humidity upper and lower limit) and corresponding adjustment and irrigate electricity consumptionAmount, water consumption statistics data; 3. keeper to utilize any computer of surfing the Net all can login remote monitoring according to authority flatPlatform 1 carries out client network access, checks soil soil moisture content, facility information or amendment irrigation control parameter etc. (need explanation, writing of the exploitation of monitoring software and program is main taking traditional experimental data, expertise as basis).

In view of irrigating interval time in number of days, and amount of communication data between remote monitoring platform 1 and each monitoring station 2Limited, select basic server product cheaply (as English letter NF3025M3) can meet hundreds and thousands of fields fromMoving water-saving irrigation control; As long as there is communication network to cover, monitoring station 2 can carry out data communication with remote monitoring platform 1,Realize automatic water-saving irrigation control.

Monitoring station 2 comprise single-chip microcomputer 5, pump variable frequency controller 8, pressure of supply water sensor 9, three-phase electricity computation chip 7,Teletransmission metering water meter 10, GPRS module 4 and ZigBee module 6.

Pressure of supply water sensor 9 is arranged on vibration means for main pipe for supplying water road for pump variable frequency controller 8 provides pressure feedback signal, singlySheet machine 5 utilizes the goal pressure parameter of UART serial port setting pump variable frequency controller 8 and sends and opens, stops work and make control commandDeng, the constant voltage that pump variable frequency controller 8 regulates the rotating speed of pump motor that the water source in motor-pumped well or dyke is become to main pipeline suppliesWater, wherein the operating pressure parameter of main pipeline is set to the target pressure value of pump variable frequency controller 8; Current-output typeThe optional model of pressure of supply water sensor 9 is GB-3000FS, and pressure test scope is 0-1.6MPa, can meet pipeline and pressPower test request; Selecting according to tubing pump " flow--lift--bore--power " type selecting pair of pump variable frequency controller 8First determine power of motor according to heading, then determine the model of pump variable frequency controller 8, such as: 15 meters of water sources of lift, irrigateDischarge requires as 30m3/ h, can select bore is the main pipeline of 65mm, water pump three phase electric machine power is 2.2kW, typeNumber can be used as pump variable frequency controller 8 for the frequency converter of VFG022M43D.

Teletransmission metering water meter 10, for measuring the water consumption of irrigation operation, is arranged on vibration means for main pipe for supplying water road, selects according to mainBe main pipeline caliber and flow, telemetering direct-reading metering water meter can meet general water metering, and single-chip microcomputer obtains by serial portsGet each irrigation water capacity or accumulative total water consumption. Single-chip microcomputer 5 obtains water consumption aggregate-value, remote transmitting direct reading by UART interfaceFormula metering water meter series has UART interface, is applicable to the water consumption metering of various flow rate specification, pipe diameter.

Three-phase electricity computation chip 7, for measuring the power consumption of monitoring station 2, utilizes RN8302B chip reality at low costExisting power consumption is measured, and single-chip microcomputer 5 obtains power consumption continuous data by SPI serial ports from RN8302B chip.

It is flat with remote monitoring that single-chip microcomputer 5 utilizes the GPRS module 4 model M35 of low price, stable performance to complete monitoring station 2Data communication between platform 1: irrigation control parameter that receiving remote monitor supervision platform 1 time passes, instruction or to remote monitoringPlatform 1 is uploaded soil condition of the injury information, status information of equipment etc.

The ZigBee of the CC2530 chip in the ZigBee module 6 that single-chip microcomputer 5 utilizes CC2530 chip and monitor terminal 3Module 12 networkings complete the transmission of irrigation control parameter, solicited message, soil soil moisture content information.

Monitor terminal 3 utilizes and is arranged on soil temperature, the humidity data that the irrigation of water branch road relates to region typical case's sampled point collectionWater supply switching to this water branch road is controlled, and comprises soil temperature-moisture sensor 11, ZigBee module 12, electromagnetismValve-driving circuit 13, magnetic valve 14, solar panel 14, rechargeable battery 17 and battery charging management circuit 16.

The CC2530 chip that ZigBee module 12 is selected is to have 2.4GHzIEEE802.15.4, ZigBee and RF4CE concurrentlyThe enhancement mode 8051CPU single-chip microcomputer of several functions, utilizes serial line interface acquisition temperature, humidity integrated transducer STH11 to adoptThe Soil Temperature And Moisture degrees of data of collection is utilized the output of an output with level mode control driving circuit for electromagnetic valve 13 simultaneously;Driving circuit for electromagnetic valve 13 is selected chip MAX629, with boosting mode, rechargeable battery 17 energy storage is converted to magnetic valve 14Work electricity consumption; Model is the DC electromagnetic valve 14 of IBV-101G, and rated voltage DC24V, holding current 190mA, canMeet the control requirement of irrigation water branch road switching.

Monitor terminal 3 adopts working stability, polycrystalline silicon material solar panel 14 that cost is low to power, through having tooThe battery charging management circuit 16 of sun energy battery MPPT maximum power point tracking function, charge management circuit 16 is selected chip CN3791Charge Management integrated circuit, charge to lighium polymer rechargeable battery 17, and rechargeable battery 17 is given soil temperature and humidity sensing againDevice 11, ZigBee module 12 and driving circuit for electromagnetic valve 13 are powered. Magnetic valve 14 is main power consumptions of monitor terminal 3Parts, have determined the type selecting of solar panel 14 and rechargeable battery 17. To irrigate unconventional irrigation mould once every dayFormula is carried out type selecting: under standard illumination condition, selecting output rated voltage is the solar-electricity that 5V, rated current are 840mAPond group is that the lithium polymer battery group charging that 3.7V, capacity are 2Ah can obtain at most energy in 4 hours to rated voltageAmount 16800mAVh, can meet the electricity consumption requirement of irrigating at least two hours every day to the monitor terminal 3 of above-mentioned parts selection.

Embodiment 2:

The present embodiment provides the using method of a kind of large region many fields automatic water-saving irrigation three-stage control system. Realize great QuTerritory many fields variety classes crop is in the automatic water-saving irrigation control of different growth phases, and step is as follows:

(1) the monitoring software, on remote monitoring platform 1, according to expertise for the soil property in different fields, one-tenthPoint and crop species work out in different fields crop in different growth phase irrigation water capacity Planning Control Sheets, this control tableEssence be exactly the humidity of different field soil, the upper limit, the lower threshold parameter pair that temperature need to be controlled in different time sectionsShould show.

In the time that irrigation control system operates, the monitoring programme of remote monitoring platform 1 changes and automatically passes through according to system timeNetwork service the soil moisture upper limit threshold of needs amendments and soil moisture upper and lower limit threshold parameter send in requisition forThe monitoring station 2 of adjusting.

(2), monitoring station 2 is kept in touch with remote monitoring platform 1 all the time. Monitoring station 2 receives 1 of remote monitoring platformAfter the new amendment soil moisture upper limit threshold sending according to time point variation and soil moisture upper and lower limit threshold value, preserve related parameter,And the ZigBee module 6 of utilizing self sends irrigation control to relevant monitor terminal 3 and newly revises threshold parameter.

(3), monitor terminal 3 is receiving soil moisture upper limit threshold and the soil moisture upper and lower limit that monitor terminal 3 issuesThreshold parameter is stored in ZigBee memory. Monitor terminal 3 utilizes the temperature, the humidity sensor that are arranged on typical sampled pointDevice periodically gathers soil temperature, humidity information, and with storage soil moisture upper and lower limit threshold value and the soil moisture upper limitThreshold value comparison; In the time that soil detected temperatures exceedes upper limit threshold or humidity lower than lower threshold, send and irrigate to monitoring station 2Solicited message; The solicited message that monitoring station 2 sends according to monitor terminal 3 is counted decision-making and whether is started irrigation water supply; If judgeWhile irrigation for needs, monitoring station 2 sends and irrigates order and send and open to pump variable frequency controller 8 to monitor terminal 3Moving work order, pump variable frequency controller 8 drives pump motor to carry the irrigation water of setting pressure to vibration means for main pipe for supplying water road,At this moment receive and irrigate the monitor terminal 3 that enabled instruction and soil moisture do not reach upper limit threshold and all open water branch road electricityMagnet valve 14 is irrigated operation; In the time that monitor terminal 3 detects soil moisture and reaches upper limit threshold, close water branch road electricityMagnet valve 14 also sends and irrigates ending message to monitoring station 2, and monitoring station 2 judges whether according to the irrigation ending message receivingNeed to finish irrigation process, if desired finish to irrigate 2, process monitoring station and send power cut-off to pump variable frequency controller 8Order stops irrigation water supply, sends water consumption, the power consumption data of this irrigation to remote monitoring platform 1 simultaneously.

Embodiment 3:

The present embodiment provides a kind of implementation method that large area field automatic water-saving irrigation three-stage control system is described.

Comparatively common a kind of situation is that the irrigation water of large area field or multiple fields only has a water source, place (as motor-pumped wellOr dyke), need the branch road of irrigation water many especially, thereby the monitor terminal 3 using is many especially. For this situation,Utilize a monitoring station 2 control and implement rotation flow successively monitor terminal 3 sums of while irrigation operation, can be comparativelySupply equipment drops into the irrigation control problem that solves large area field or many fields cheaply.

Calculate the unit interval water consumption of irrigation operation with irrigated area, minimum rotation flow interval time, determine and select water with thisWhen the power of pump motor selects pump variable frequency controller 8 to carry out irrigation operation again, a fairly large number of monitor terminal 3 proposes to fill withIrrigate request, still, monitoring station 2 is numbered according to monitor terminal 3, only allows the adjacent monitor terminal in some and position 3Implement to irrigate operation, the monitor terminal 3 that reaches irrigation humidity requirement in irrigation operation process is withdrawn from irrigation operation, and monitorsThe monitor terminal 3 that closes on that 2 open request of standing are irrigated starts irrigation operation, ensures the monitor terminal 3 of irrigation operation simultaneouslySum is substantially constant; Continue to supply water and monitor terminal 3 irrigation operation rotations through monitoring station 2, can realize large area fieldThe control of piece automatic water-saving irrigation.

Embodiment 4:

The present embodiment provides a kind of and illustrates that weather forecast is in the situation of irrigation control intervention, three grades of controls of this automatic water-saving irrigationThe using method of system processed.

If close on rainfall particularly heavy showers carry out again irrigation operation, crop damage caused by waterlogging also can be caused in the source of not only wasting water, because ofThis, need manual intervention especially, and method is as follows:

(1), remote monitoring platform 1 is provided with networking client access function, has the administrative staff of authority can be at any energyOn the computer of online, login remote monitoring platform 1, check soil soil moisture content, equipment state or do irrigating according to sky forecastIndustry is carried out manual intervention.

Rainy weather forecasts that when particularly heavy showers weather forecast occurs, administrative staff send soil moisture content to monitoring station 2 and look intoAsk instruction, 2 of monitoring stations send to remote monitoring platform 1 the condition of the injury information of the relevant field of collecting, administrative staff byWhether the distribution of color of electronic chart checking monitoring terminal 3 icons is manually dry to irrigation process in conjunction with the growth phase of crop againCarry out in advance decision-making; If judge some monitoring station 2 need at a time between forbidden irrigation operation in section, to these monitoring stations 2Send the forbidden instruction of irrigation in certain period; If need to reduce irrigation water capacity, revise in certain time period by rainfallSome field soil moisture upper and lower limit control threshold value.

(2), monitoring station 2 receives after the control parameter that manual amendment reduces irrigation water capacity, is transmitted to the prison of management and control at onceControl terminal 3, monitor terminal 3 is controlled irrigation process according to new parameter; If monitoring station 2 is received remote monitoring platformThe 1 forbidden instruction of irrigation sending, 2 of monitoring stations are closed irrigation water supply within the corresponding time period, to relevant monitor terminal 3The irrigation request instruction sending is ignored.

Claims (10)

1. large region many fields automatic water-saving irrigation three-stage control system, is characterized in that, comprises remote monitoring platform, extremelyA few monitoring station and several monitor terminals; Between remote monitoring platform and monitoring station, carry out data communication in GPRS mode,Between monitoring station and monitor terminal, carry out data communication with ZigBee-network;
Described remote monitoring platform comprises server;
Described monitoring station comprises single-chip microcomputer, pump variable frequency controller, pressure of supply water sensor, GPRS module and ZigBeeModule; Single-chip microcomputer is connected with pump variable frequency controller, GPRS module and ZigBee module respectively by serial line interface, supplies waterPressure sensor is electrically connected with pump variable frequency controller;
Described monitor terminal comprises ZigBee module, soil temperature-moisture sensor, driving circuit for electromagnetic valve, magnetic valve; ZigBeeModule is electrically connected with soil temperature-moisture sensor, driving circuit for electromagnetic valve respectively, and driving circuit for electromagnetic valve and magnetic valve are electrically connectedConnect.
2. large region as claimed in claim 1 many fields automatic water-saving irrigation three-stage control system, is characterized in that instituteState monitoring station and also comprise three-phase electricity computation chip and teletransmission metering water meter, three-phase electricity computation chip and teletransmission metering water meter are respectivelyBe electrically connected with single-chip microcomputer.
3. large region as claimed in claim 1 many fields automatic water-saving irrigation three-stage control system, is characterized in that instituteState monitor terminal and also comprise solar panel, rechargeable battery and battery charging management circuit, solar panel is by electricityPond charge management circuit is connected with rechargeable battery, rechargeable battery respectively with ZigBee module, soil temperature-moisture sensor and electricityElectromagnetic valve driving circuit electrical connection.
4. large region as claimed in claim 1 many fields automatic water-saving irrigation three-stage control system, is characterized in that instituteState driving circuit for electromagnetic valve and select booster type translation circuit.
5. large region as claimed in claim 1 many fields automatic water-saving irrigation three-stage control system, is characterized in that instituteState soil temperature-moisture sensor and select STH11 type temperature, humidity integrated transducer.
6. large region as claimed in claim 3 many fields automatic water-saving irrigation three-stage control system, is characterized in that instituteState battery charging management circuit and select the Charge Management integrated circuit with solar cell MPPT maximum power point tracking function.
7. large region as claimed in claim 6 many fields automatic water-saving irrigation three-stage control system, is characterized in that instituteState battery charging management circuit and select CN3791 Charge Management integrated circuit.
8. making of the large region many fields automatic water-saving irrigation three-stage control system as described in claim 1-7 any oneBy method, comprise the following steps,
(1) temperature, the humidity data in the soil temperature-moisture sensor Real-time Collection field of sampled point, and by temperature, humidity numberReportedly be defeated by the ZigBee module of monitor terminal;
(2) the ZigBee module of monitor terminal receives after temperature, humidity data and is stored in monitor terminal ZigBee moduleIn soil moisture upper and lower limit threshold value and the comparison of soil moisture upper limit threshold, when exceed soil moisture upper limit threshold or lower thanWhen soil moisture lower threshold, monitor terminal is sent and irrigates solicited message to monitoring station by ZigBee module;
(3) whether the solicited message decision-making that monitoring station sends according to monitor terminal starts irrigation water supply, need to enter if be judged to beWhen row is irrigated, monitoring station sends and irrigates order and send and start work order, water to pump variable frequency controller to monitor terminalPump frequency conversion controller drives pump motor to carry the irrigation water of setting pressure to vibration means for main pipe for supplying water road, receives to irrigate to start to refer toThe monitor terminal that order and soil moisture do not reach soil moisture upper limit threshold is all opened water and is propped up way solenoid valve and irrigate behaviourDo;
(4), in the time that monitor terminal detects that soil moisture reaches soil moisture upper limit threshold, monitor terminal is closed water and is propped upWay solenoid valve also sends and irrigates ending message to monitoring station, and monitoring station judges whether to need according to the irrigation ending message receivingFinish irrigation process, if desired finish to irrigate process monitoring station and stop to pump variable frequency controller transmission power cut-off orderOnly irrigation water supply.
9. the using method of large region as claimed in claim 8 many fields automatic water-saving irrigation three-stage control system, its spyLevy and be, remote monitoring platform issues amended soil moisture upper and lower limit threshold value by GPRS network communication to monitoring stationAnd soil moisture upper limit threshold, monitoring station receives amended soil moisture upper and lower limit threshold value and soil moisture upper limit thresholdAfter value, be stored in ZigBee module, monitoring station utilizes the ZigBee module of self to send after amendment to monitor terminal simultaneouslySoil moisture upper and lower limit threshold value and soil moisture upper limit threshold and be stored in the ZigBee module of monitor terminal.
10. the using method of large region as claimed in claim 8 many fields automatic water-saving irrigation three-stage control system, itsBe characterised in that, remote monitoring platform is provided with networking client access function, has the administrative staff of authority can be at any energyOn the computer of online, login remote monitoring platform interface, certain time according to weather forecast situation manual amendment by rainfallSome field soil moisture upper and lower limit threshold value in section, or some field in certain time period by rainfall is arrangedIrrigate inhibit command, and send in requisition for the monitoring station of adjusting or irrigating forbidden control by GPRS network communication.
CN201610108364.0A 2016-02-28 2016-02-28 Large-area multi-field-piece automatic water-saving irrigation three-level control system and use method thereof CN105580716A (en)

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