CN104642065A - Solar full automatic irrigation water pump allowing wireless remote measure and control of soil moisture content - Google Patents

Solar full automatic irrigation water pump allowing wireless remote measure and control of soil moisture content Download PDF

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Publication number
CN104642065A
CN104642065A CN201410283900.1A CN201410283900A CN104642065A CN 104642065 A CN104642065 A CN 104642065A CN 201410283900 A CN201410283900 A CN 201410283900A CN 104642065 A CN104642065 A CN 104642065A
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water source
full
water pump
soil humidity
water
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CN201410283900.1A
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CN104642065B (en
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阮树成
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Shandong Torch Zhongyuan Technology Market Management Co ltd
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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
    • 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
    • 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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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental Sciences (AREA)
  • Soil Sciences (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The invention relates to the technical field of electronics, in particular to a solar full automatic irrigation water pump allowing wireless remote measure and control of soil moisture content. The water pump comprises a soil humidity sensor, a wireless transmitter, a water source detection sensor, a water source optical coupler control switch, a wireless receiver and a single-phase motor water pump. The solar power supply wireless remote measure and control soil humidity water pump achieves full automatic irrigation in the crop field where an altering current power supply is inconvenient to lay, especially in the crop field far away from a water source, insufficient in water source and with uneven terrain, enables different crops to be in the optimum growth state, and greatly improves the agriculture planting production level. The soil humidity sensor and the water source detection sensor adopt electrode sine wave sensing, and effectively prevent electrolytic etching and prolong service life. The water pump has the advantages of wireless receiving/transmitting crystal oscillators, high stable frequency remote measure and control, pulse coding, high coding capacity, high anti-interference and stable reliable operation in adjacent crop fields without interference. The water pump is widely applied to crop field irrigation to ensure soil humidity and meet the crop growth requirement.

Description

The full-automatic irrigation pump of solar energy radio remote measuring and controlling soil moisture content
Technical field
The present invention relates to electronic technology field, specifically the full-automatic irrigation pump of a kind of solar energy radio remote measuring and controlling soil moisture content.
Background technology
The soil of growing plant needs to keep certain humidity, both inaccurate by Artificial Control soil moisture, and the amount of labour is large again, is not suitable for modern agricultural production requirement.Especially the rare arid poor ridge area insufficient water sources of rainwater or dried up source are far, or physical features is uneven, and the inconvenience of AC power electrical network is laid, and affects agricultural production.
Summary of the invention
The object of this invention is to provide the farmland that AC network inconvenience is laid, measure soil wet dry information wireless launch, electromagnetic wave space is transferred to the wireless receiver at water source, determines the full-automatic irrigation pump of a kind of solar energy radio remote measuring and controlling soil moisture content of irrigating humidity and water supply coverage.
The technology of the present invention solution: comprise two groups of sun-generated electric powers, full-bridge inverter, soil humidity sensor, soil humidity measuring electric bridge, low frequency crystal oscillator, buffer amplifier, active band-pass filter, differential amplifier, accurate wave detector, power amplifier, modulator, wireless launcher, water source detection signal generator, water source detecting sensor, water source optocoupler gauge tap, wireless receiver, monostable time delay relay, A.C. contactor, monophase machine water pump, wherein, low frequency crystal oscillator sine wave output signal is through buffer amplifier, active band-pass filter filtering higher hamonic wave connects soil humidity measuring electric bridge input, and soil humidity measuring bridge measurement brachium pontis connects soil humidity sensor, and soil humidity measuring electric bridge exports through differential amplifier, accurate wave detector, power amplifier driven modulator carries soil humidity measuring information to wireless launcher primary modulation, wireless launcher pulse code secondary modulation single channel encryption is by antenna transmission, electromagnetic wave through space propagation to wireless receiver, wireless receiver pulse decoding channel is deciphered, demodulation soil humidity measuring information controls water pump and irrigates, and wireless receiver is by water source detection signal generator output low frequency sine wave access water source detecting sensor, water source optocoupler gauge tap provides transducing signal, and water source detection signal generator is vibrated by RC Wien bridge circuit, diode VD 7, VD 8fixed ampllitude, triode VT 4emitter following exports through Capacitance Coupled water receiving source detecting sensor exploring electrode, diode VD 5, VD 6detection, capacitor filtering, current-limiting resistance are to triode VT 2current amplifier drives water source optocoupler gauge tap light emitting diode, and phototriode and wireless RF receivers decoding export and drives monostable time delay relay triode VT 3be connected in series, monostable time delay relay J 1contact connects A.C. contactor K coil and full-bridge inverter out-put supply, ac contactor contact K -1, K -2connect monophase machine water pump and full-bridge inverter out-put supply, monophase machine water pump connects overload protection electrothermal relay, one group of sun-generated electric power connects full-bridge inverter power input, and through voltage-stablizer water receiving source detection signal generator, water source optocoupler gauge tap, wireless receiver power end, another group sun-generated electric power connects soil surveying wireless launcher, and loading engineering plastic magazine with soil surveying wireless launcher, soil humidity sensor, note fills with epoxy sealing,
Soil humidity sensor is at least by two cylinders or oblate graphite or stainless steel electrode, its lower end is that sharp cone distal inserts soil, upper end is drawn by wire bonds, be provided with spacing between electrode and be injection molded into one by engineering plastics, be bonded at the bottom of wireless launcher engineering plastic magazine, electrode is drawn wire and is connected soil humidity measuring bridge measurement brachium pontis;
Water source detecting sensor establishes spaced two graphite or stainless steel exploring electrode by cross section in one section of plastic water pipe, shielded cable pin connects draws, extraction place is provided with moisture proof outer sheath tube, electrode is drawn shielded cable and is connected water source detection signal generator, water source optocoupler gauge tap, and water source detecting sensor plastic water pipe connects water source water inlet pipe and water pump;
Wireless launcher is made up of radio frequency crystals oscillator, radio-frequency power amplifier, pulse coder, modulator, antenna, radio frequency crystals oscillator exports and connects radio-frequency power amplifier, radio-frequency power amplifier and modulator feed are connected in series, the coded pulse of modulator input termination pulse coder, modulator power end drives, through antenna transmission by carrying soil humidity measuring power of information amplifier;
Wireless receiver is accessed by aerial signal that radio frequency is highly put, mixing, the machine crystal oscillation signal access frequency mixer, extract after mixing intermediate-freuqncy signal through amplification, demodulation, lowly put to pulse decoder, pulse decoder exports through driving monostable time delay relay triode and water source optocoupler gauge tap phototriode to be connected in series, monostable time delay relay J 1contact J 1-1connect A.C. contactor K coil and full-bridge inverter out-put supply, ac contactor contact K -1, K -2connect monophase machine water pump and full-bridge inverter out-put supply, monophase machine water pump connects overload protection electrothermal relay, and demodulation soil humidity measuring information controls monophase machine water pump and opens or stop irrigating;
Two groups of sun-generated electric powers are respectively by photovoltaic battery panel E 1export through blocking diode VD 10, relay J 2contact J 2-1meet accumulator E 2, accumulator E 2cross pressure-controlled sampling and meet potentiometer RP 4, adjustable termination window voltage comparable chip ICa positive input terminal, under-voltage control sampling meets potentiometer RP 3, adjustable termination window voltage comparable chip IC bnegative input end, window voltage comparable chip ICa negative input end and window voltage comparable chip IC bpositive input terminal is through resistance R 47, R 48divide crimping voltage-stabiliser tube VD 15voltage makes reference, and window voltage compares output through triode contact relay J 2, accumulator E 2serial connection quick acting fuse F, and be connected to anti-reverse diode VD 11, one group of sun-generated electric power connects full-bridge inverter power input, and connects soil surveying wireless launcher through voltage stabilizing water receiving source detection signal generator, water source optocoupler gauge tap, wireless receiver power end, another group sun-generated electric power;
Full-bridge inverter is by insulated gate power triode VT 5, VT 6, VT 7, VT 8composition PWM pulsewidth modulation bridge type inverse, four pipe grids connect PWM controller signal voltage respectively, and collector and emitter fly-wheel diode in parallel suppresses transformer to produce backward voltage, VT 5emitter stage series connection VT 6colelctor electrode connection transformer T primary inductance TL 1one end, VT 7emitter stage series connection VT 8colelctor electrode connection transformer primary inductance TL 1the other end, sun-generated electric power positive pole meets VT 5, VT 7colelctor electrode, sun-generated electric power negative pole meets VT 6, VT 8emitter stage, transformer secondary output inductance TL 2as full-bridge inverter out-put supply, by wireless receiver monostable time delay relay J 1contact J 1-1connect A.C. contactor K control coil and full-bridge inverter out-put supply, A.C. contactor K -1, K -2order phase motor and water pump, transformer PL penetrates load pickup current signal feedback and connects PWM controller pulsewidth modulation.
The present invention produces good effect: solar energy radio remote measuring and controlling agricultural land soil humidity is automatically irrigated, especially dried up source is comparatively far away, insufficient water sources and the uneven field irrigation of physical features, solve AC network inconvenience to lay, soil moisture keeps in setting range, Different Crop can be in optimum growh state, the time saving and energy saving agricultural planting of the raising greatly level of production.Soil humidity sensor, water source detecting sensor electrode are all set as the effective safeguard procedures of AC sine wave sensing, avoid producing electrolysis polarization corrosion because of direct current sensing electrode, ensure that wireless telemetering remote control water pump uses reliably and with long-term, a wireless receipts/crystal oscillator height frequency stabilization remote measuring and controlling, pulse code decoding capacity are large, strong interference immunity, adjacent farmland is stable, reliable, does not interfere with each other.
Accompanying drawing explanation
Fig. 1 technical solution of the present invention theory diagram
Fig. 2 soil humidity sensor schematic diagram
Fig. 3 soil humidity measuring wireless transmitter circuits
Fig. 4 water source detects sensing wireless receiver circuits
Fig. 5 full-bridge inverter and monophase machine water pump circuit
Fig. 6 solar-electricity source control circuit
Embodiment
With reference to Fig. 1, 2, 3, 4, 5, 6, the specific embodiment of the invention and embodiment, comprise two groups of sun-generated electric powers 18, full-bridge inverter 17, soil humidity sensor 6, soil humidity measuring electric bridge 5, low frequency crystal oscillator 1, buffer amplifier 2, active band-pass filter 3, differential amplifier 4, accurate wave detector 7, power amplifier 8, modulator 9, wireless launcher 10, water source detection signal generator 15, water source detecting sensor 16, water source optocoupler gauge tap 12, wireless receiver 11, monostable time delay relay 13, A.C. contactor 14, monophase machine water pump 19, wherein, low frequency crystal oscillator 1 sine wave output signal is through buffer amplifier 2, active band-pass filter 3 filtering higher hamonic wave connects soil humidity measuring electric bridge 5 input, and soil humidity measuring electric bridge 5 is measured brachium pontis and connected soil humidity sensor 6, and soil humidity measuring electric bridge 5 exports through differential amplifier 4, accurate wave detector 7, power amplifier 8 driven modulator 9 to wireless launcher 10 primary modulation carries soil humidity measuring information, wireless launcher 10 pulse code secondary modulation single channel encryption is by antenna transmission, electromagnetic wave through space propagation to wireless receiver 11, wireless receiver 11 pulse decoding channel is deciphered, demodulation soil humidity measuring information controls water pump and irrigates, and wireless receiver 11 is by water source detection signal generator 15 output low frequency sine wave access water source detecting sensor 16, water source optocoupler gauge tap 12 provides transducing signal, and water source detection signal generator 15 is vibrated by RC Wien bridge circuit, diode VD 7, VD 8fixed ampllitude, triode VT 4emitter following exports through Capacitance Coupled water receiving source detecting sensor 16 exploring electrode, diode VD 5, VD 6detection, capacitor filtering, current-limiting resistance are to triode VT 2current amplifier drives water source optocoupler gauge tap 12 light emitting diode, and phototriode and wireless receiver 11 decoding export and drives monostable time delay relay triode VT 3be connected in series, relay 13 contact J 1-1connect A.C. contactor K14 coil and full-bridge inverter out-put supply, ac contactor contact K -1, K -2connect monophase machine water pump 19 and full-bridge inverter 17 out-put supply, monophase machine water pump 19 meets overload protection electrothermal relay FR, and one group of sun-generated electric power 18 exports+V through switch S 1connect full-bridge inverter 17 power input, and through voltage stabilizing water receiving source detection signal generator 15, water source optocoupler gauge tap 12, wireless receiver 11 power end, another group sun-generated electric power 18 exports+V through switch S 1connect soil surveying wireless launcher 10, and load engineering plastic magazine with soil surveying wireless launcher 10, soil humidity sensor 6, note fills with epoxy sealing.
Two groups of solar-electricity source control circuits are identical, and Soil K+adsorption, wireless transmission use small-power solar cell and accumulator, and wireless receiving, full-bridge inverter and monophase machine water pump are by big-power solar battery and storage battery power supply.Solar cell E 1also to accumulator E while the work of daylight supply-water pump 2charging, night is by accumulator E 2power supply turn on pump, round the clock drought control irrigation.Window voltage comparable chip IC a, Ic boutput level is through triode VT 9drive relay J 2control under-voltage, the overvoltage of charging, protection accumulator E 2normal operation.Under-voltage control is at accumulator E 2when voltage is lower than window voltage comparable chip ICa reference voltage, relay J 2adhesive, contact J 2-1connect accumulator E 2charging, as accumulator E 2voltage is sufficient, and overvoltage control voltage is higher than window voltage comparable chip IC breference voltage, relay J 2releasing contact J 2-1, cut off solar cell E 1to accumulator E 2charging.Turn on pump power consumption reduces accumulator E 2voltage, sun-generated electric power recovers charging.
Relay J in parallel 2two ends diode VD 14suppress backward voltage.Voltage-stabiliser tube VD 15and resistance R 46, electric capacity C 15voltage stabilizing ensures that under-voltage, overvoltage accurately controls.Window voltage comparable chip IC selects LM358 double operational.
Low frequency crystal JT oscillator IC 1aproduce stable low-frequency sine, through buffer amplifier IC 1bimpedance matching, active band-pass filter IC 1cfiltering higher hamonic wave provides measuring bridge high-quality signal source, and the resistivity acting on soil humidity sensor RS sensing soil moisture changes electric bridge characteristic, reaches testing goal.
Regulator potentiometer RP 1if wait to fill with soil moisture, make bridge balance, differential amplifier IC 1doutput is zero, wave detector IC 2b, IC 2c, power discharging IC 2dnon-output signal, wireless launcher does not launch telecommand, and therefore wireless receiver does not have decoded signal to export, triode VT 3cut-off, monostable time delay relay contact J 1-1normally closed connection A.C. contactor K, contact K -1, K -2connect motor M and open pump operation pumping irrigation; Soil moisture reaches setting value, namely reduces soil resistivity measuring bridge disequilibrium, differential amplifier IC 1doutput signal is through wave detector IC 2b, IC 2c, power discharging IC 2d, VT 1drive wireless launcher primary modulation to carry soil humidity measuring information, radio frequency transmitter pulse code secondary modulation single channel encryption is by antenna A 1launch, electromagnetic wave through space propagation to antenna A 2, wireless receiver, wireless receiver pulse decoding channel is deciphered, and demodulation soil humidity measuring information controls monostable time delay relay contact J 1-1release A.C. contactor K, contact K -1, K -2disconnect motor M water pump to stop irrigating, complete setting and supply water.When monostable time delay prevents soil critical humidity for 5 ~ 10 seconds, the frequent start-stop of water pump is beated.Potentiometer RP 2regulate remote measuring and controlling sensitivity.
Wireless RF receivers water source detecting sensor detects water inlet pipe JSG water source soil moisture content, and sensor electrode of having abundant water resources is by IC 1lM741 low-frequency oscillation alternated sine-wave conducts electricity, through capacitance C 6, C 11, diode VD 5, VD 6detection, electric capacity C 7filtering, triode VT 2current amplifier drives optocoupler ELD, wireless receiver decoding output signal drive IC 3555 monostable time delay relay J 1, A.C. contactor K controls motor M pumping for water pump and irrigates; As water inlet pipe JSG cuts off the water supply, water source detecting sensor electrode is opened a way, optocoupler ELD, triode VT 2cut-off monostable time delay relay releasing contact J 1-1disconnect A.C. contactor K, ac contactor contact K -1, K -2disconnect motor M power supply, guarantee that motor M has a power failure, water pump stops pumping, and prevents water pump from dallying impaired, and running prevents from motor M overload to be connected to electrothermal relay FR protecting.
Soil humidity sensor, water source detecting sensor electrode are all set as AC sine wave sensing safeguard procedures, effectively avoid producing electrolysis polarization corrosion because of direct current sensing electrode, ensure that wireless telemetering remote control water pump uses reliably and with long-term.Soil humidity measuring device IC 1a ~ d, IC 2a ~ dadopt two panels four high guaily unit LM234, wherein IC 2apositive input terminal resistance R 18, R 19dividing potential drop, exports 1/2 supply voltage as IC 1a ~ d, IC 2c ~ breference voltage, makes it be operated in the range of linearity separately, so that single supply powered battery.Differential amplifier IC 1dpositive and negative input amplitude limit parallel diode VD 1, VD 2prevent signal overloading from affecting certainty of measurement.Wireless receiver power supply by sun-generated electric power through Three-end voltage stabilizer IC 2, capacitor filtering C 12, C 13power supply.
Wireless receipts/send out crystal oscillator height frequency stabilization remote measuring and controlling, pulse code decoding capacity is large, strong interference immunity, and adjacent area farmland is stable, reliably do not interfere with each other.Wireless telemetering remote control distance arranges carrier frequency, transmitting power and antenna radiation characteristics and receiving sensitivity by farmland under irrigation and water source distance, carrier frequency uses ISM frequency 2.45GHz, transmitting power 15mdb, receiving sensitivity-100mdb, 1/4 wavelength antennas transmitting/receiving, controls tens of rice and irrigates to hundreds of meters of distances.Sun-generated electric power full-bridge inverter power output 5kw mesh power 4.7kw monophase machine water pump, pump-out 5000L/nin, irrigates 20 hectares of farmlands.Large area field irrigation may be combined with team control wireless telemetering and receives/send out irrigation, promotes irrigation effect.
Sun-generated electric power wireless telemetering remote control agricultural land soil humidity of the present invention is automatically irrigated, solve AC network inconvenience to lay, especially dried up source is far away, insufficient water sources and the uneven field irrigation of physical features, moisture reaches sufficient or enough moistens and stops supplying water, lack of water again turn on pump supplies water, the shutdown of moisture abundance, with this Auto Power On that circulates, shutdown, need not manual operation, avoid lack of water or oversupplied water, fully-automatic intelligent high-efficiency water-saving economizes on electricity, agricultural land soil humidity is made to remain in prescribed limit, make different crops can be in optimum growh state, the time saving and energy saving agricultural planting of the raising greatly level of production.

Claims (7)

1. the full-automatic irrigation pump of solar energy radio remote measuring and controlling soil moisture content, is characterized in that: comprise two groups of sun-generated electric powers, full-bridge inverter, soil humidity sensor, soil humidity measuring electric bridge, low frequency crystal oscillator, buffer amplifier, active band-pass filter, differential amplifier, accurate wave detector, power amplifier, modulator, wireless launcher, water source detection signal generator, water source detecting sensor, water source optocoupler gauge tap, wireless receiver, monostable time delay relay, A.C. contactor, monophase machine water pump, wherein, low frequency crystal oscillator sine wave output signal is through buffer amplifier, active band-pass filter filtering higher hamonic wave connects soil humidity measuring electric bridge input, and soil humidity measuring bridge measurement brachium pontis connects soil humidity sensor, and soil humidity measuring electric bridge exports through differential amplifier, accurate wave detector, power amplifier driven modulator carries soil humidity measuring information to wireless launcher primary modulation, wireless launcher pulse code secondary modulation single channel encryption is by antenna transmission, electromagnetic wave through space propagation to wireless receiver, wireless receiver pulse decoding channel is deciphered, demodulation soil humidity measuring information controls water pump and irrigates, and wireless receiver is by water source detection signal generator output low frequency sine wave access water source detecting sensor, water source optocoupler gauge tap provides transducing signal, and water source detection signal generator is vibrated by RC Wien bridge circuit, diode VD 7, VD 8fixed ampllitude, triode VT 4emitter following exports through Capacitance Coupled water receiving source detecting sensor exploring electrode, diode VD 5, VD 6detection, capacitor filtering, current-limiting resistance are to triode VT 2current amplifier drives water source optocoupler gauge tap light emitting diode, and phototriode and wireless RF receivers decoding export and drives monostable time delay relay triode VT 3be connected in series, monostable time delay relay J 1contact connects A.C. contactor K coil and full-bridge inverter out-put supply, ac contactor contact K -1, K -2connect monophase machine water pump and full-bridge inverter out-put supply, monophase machine water pump connects overload protection electrothermal relay, one group of sun-generated electric power connects full-bridge inverter power input, and through voltage-stablizer water receiving source detection signal generator, water source optocoupler gauge tap, wireless receiver power end, another group sun-generated electric power connects soil surveying wireless launcher, and loading engineering plastic magazine with soil surveying wireless launcher, soil humidity sensor, note fills with epoxy sealing.
2. the full-automatic irrigation pump of a kind of solar energy radio remote measuring and controlling soil moisture content according to claim 1, it is characterized in that: soil humidity sensor is at least by two cylinders or oblate graphite or stainless steel electrode, its lower end is that sharp cone distal inserts soil, upper end is drawn by wire bonds, be provided with spacing between electrode and be injection molded into one by engineering plastics, be bonded at the bottom of wireless launcher engineering plastic magazine, electrode is drawn wire and is connected soil humidity measuring bridge measurement brachium pontis.
3. the full-automatic irrigation pump of a kind of solar energy radio remote measuring and controlling soil moisture content according to claim 1, it is characterized in that: water source detecting sensor establishes spaced two graphite or stainless steel exploring electrode by cross section in one section of plastic water pipe, shielded cable pin connects draws, extraction place is provided with moisture proof outer sheath tube, electrode is drawn shielded cable and is connected water source detection signal generator, water source optocoupler gauge tap, and water source detecting sensor plastic water pipe connects water source water inlet pipe and water pump.
4. the full-automatic irrigation pump of a kind of solar energy radio remote measuring and controlling soil moisture content according to claim 1, it is characterized in that: wireless launcher is made up of radio frequency crystals oscillator, radio-frequency power amplifier, pulse coder, modulator, antenna, radio frequency crystals oscillator exports and connects radio-frequency power amplifier, radio-frequency power amplifier and modulator feed are connected in series, the coded pulse of modulator input termination pulse coder, modulator power end drives, through antenna transmission by carrying soil humidity measuring power of information amplifier.
5. the full-automatic irrigation pump of a kind of solar energy radio remote measuring and controlling soil moisture content according to claim 1, it is characterized in that: wireless receiver is accessed by aerial signal that radio frequency is highly put, mixing, the machine crystal oscillation signal access frequency mixer, extract after mixing intermediate-freuqncy signal through amplification, demodulation, lowly put to pulse decoder, pulse decoder exports through driving monostable time delay relay triode and water source optocoupler gauge tap phototriode to be connected in series, monostable time delay relay J 1contact J 1-1connect A.C. contactor K coil and full-bridge inverter out-put supply, ac contactor contact K -1, K -2connect monophase machine water pump and full-bridge inverter out-put supply, monophase machine water pump connects overload protection electrothermal relay, and demodulation soil humidity measuring information controls monophase machine water pump and opens or stop irrigating.
6. the full-automatic irrigation pump of a kind of solar energy radio remote measuring and controlling soil moisture content according to claim 1, is characterized in that two groups of sun-generated electric powers are respectively by photovoltaic battery panel E 1export through blocking diode VD 10, relay J 2contact J 2-1meet accumulator E 2, accumulator E 2cross pressure-controlled sampling and meet potentiometer RP 4, adjustable termination window voltage comparable chip ICa positive input terminal, under-voltage control sampling meets potentiometer RP 3, adjustable termination window voltage comparable chip IC bnegative input end, window voltage comparable chip ICa negative input end and window voltage comparable chip IC bpositive input terminal is through resistance R 47, R 48divide crimping voltage-stabiliser tube VD 15voltage makes reference, and window voltage compares output through triode contact relay J 2, accumulator E 2serial connection quick acting fuse F, and be connected to anti-reverse diode VD 11, one group of sun-generated electric power connects full-bridge inverter power input, and connects soil surveying wireless launcher through voltage stabilizing water receiving source detection signal generator, water source optocoupler gauge tap, wireless receiver power end, another group sun-generated electric power.
7. the full-automatic irrigation pump of a kind of solar energy radio remote measuring and controlling soil moisture content according to claim 1, is characterized in that: full-bridge inverter is by insulated gate power triode VT 5, VT 6, VT 7, VT 8composition PWM pulsewidth modulation bridge type inverse, four pipe grids connect PWM controller signal voltage respectively, and collector and emitter fly-wheel diode in parallel suppresses transformer to produce backward voltage, VT 5emitter stage series connection VT 6colelctor electrode connection transformer T primary inductance TL 1one end, VT 7emitter stage series connection VT 8colelctor electrode connection transformer primary inductance TL 1the other end, sun-generated electric power positive pole meets VT 5, VT 7colelctor electrode, sun-generated electric power negative pole meets VT 6, VT 8emitter stage, transformer secondary output inductance TL 2as full-bridge inverter out-put supply, by wireless receiver monostable time delay relay J 1contact J 1-1connect A.C. contactor K control coil and full-bridge inverter out-put supply, A.C. contactor K -1, K -2order phase motor and water pump, transformer PL penetrates load pickup current signal feedback and connects PWM controller pulsewidth modulation.
CN201410283900.1A 2014-06-13 2014-06-13 Solar full automatic irrigation water pump allowing wireless remote measure and control of soil moisture content Active CN104642065B (en)

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CN203872718U (en) * 2014-06-13 2014-10-15 阮树成 Solar wireless remote measurement and remote control soil moisture content full-automatic irrigation water pump

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