CN104642063A - System for soil moisture measurement and intelligent irrigation - Google Patents

System for soil moisture measurement and intelligent irrigation Download PDF

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Publication number
CN104642063A
CN104642063A CN201310589614.3A CN201310589614A CN104642063A CN 104642063 A CN104642063 A CN 104642063A CN 201310589614 A CN201310589614 A CN 201310589614A CN 104642063 A CN104642063 A CN 104642063A
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CN
China
Prior art keywords
module
soil moisture
microprocessor
control module
soil
Prior art date
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Pending
Application number
CN201310589614.3A
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Chinese (zh)
Inventor
富强
于光
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Individual
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Individual
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Priority to CN201310589614.3A priority Critical patent/CN104642063A/en
Publication of CN104642063A publication Critical patent/CN104642063A/en
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Classifications

    • 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
    • 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

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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 present invention relates to a system for soil moisture measurement and intelligent irrigation. The present invention belongs to the field of measuring and testing, and particularly relates to an improvement of the system for soil moisture measurement and intelligent irrigation. The system for soil moisture measurement and intelligent irrigation, provided by the invention, has the characteristics of simplicity, convenience, and measurement accuracy. The system comprises a detection module, an A/D conversion module, an amplifier module, a memory chip, a comparison module, a microprocessor, a power supply, a wireless transceiver module, an irrigation control module, an actuator, a display control module, and a display module. The system is characterized in that: the detection module, the A/D conversion module, the amplifier module, the memory chip, the comparison module are connected with input ports of the microprocessor, and the microprocessor is also connected with the power supply, the wireless transceiver module, the irrigation control module, the actuator, the display control module, and the display module.

Description

A kind of measurement of soil moisture and intelligent irrigation system
Technical field
the invention belongs to measurement; Field tests, especially relates to a kind of measurement of soil moisture and the improvement of intelligent irrigation system.
Background technology
soil moisture, soil moisture determines the moisture supply situation of crops.Soil moisture is too low, forms soil drought, and effect photosynthesis can not normally carry out, and reduces the yield and quality of crop; Serious water shortage causes crop wilting and dead.Soil moisture is too high, worsens soil aeration, affects the activity of edaphon, the vital movements such as the breathing of crop root, growth are hindered, thus affects the normal growth of crop field upper part, cause excessive growth, lodging, disease to grow.The number of soil moisture also affects field tillage control measure and seeding quality, and affects the height of soil temperature.
as a fundamental physical quantity of reflect soil state, to production and the life of the mankind, especially there is very important meaning to agricultural.The definition of soil moisture has two kinds: a kind of is the percentage containing water quality in certain mass soil.Another kind is the percentage of moisture volume in certain volume soil, represents with PCT, and scope is 0 to 50%.The assay method of soil moisture content, from traditional oven drying method, to electrical measuring method, until the nuclear technique means etc. in modern times, has tens kinds, and all with the oven drying method after Field sampling for standard method of measurement.But these methods are mostly the DYNAMIC DISTRIBUTION of ocean weather station observation soil moisture year in year out.For the instant measurement of soil moisture, never have a kind of simple and effective and accurate method.
Summary of the invention
the present invention is exactly for the problems referred to above, provides a kind of convenience succinct and measures measurement and the intelligent irrigation system of accurate a kind of soil moisture.
for achieving the above object, the present invention adopts following technical scheme, the present invention includes detection module, A/D modular converter, amplification module, memory chip, comparison module, microprocessor, power supply, radio receiving transmitting module, irrigation control module, executing agency, display control module and display module; It is characterized in that: described detection module, A/D modular converter, amplification module, memory chip, comparison module are connected with the input port of microcontroller; Microprocessor is also connected with display module with power supply, radio receiving transmitting module, irrigation control module, executing agency, display control module.
as a kind of preferred version, microprocessor of the present invention is single-chip microcomputer.
beneficial effect of the present invention.
detection module of the present invention, A/D modular converter, amplification module, memory chip, comparison module are connected with the input port of microcontroller; Microprocessor is also connected with display module with power supply, radio receiving transmitting module, irrigation control module, executing agency, display control module.Use the method for resistance-frequency (R-F) change-over circuit measuring soil moisture, programming device or SCM system is utilized to measure shaping side's wave frequency of chip NE555 generation, achieve the instant measurement to channel frequency, ensure that the accuracy measuring soil moisture simultaneously.It is worth mentioning that, when soil moisture is lower, method in this paper overcomes the drawback that traditional four electrode method surveys soil resistivity method, by measuring frequency indirect inspection electric resistance of soil, avoid the lability caused owing to directly measuring electric resistance of soil, improve the sensitivity of measurement.
Accompanying drawing explanation
in order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with the drawings and the specific embodiments, the present invention is further elaborated.Should be appreciated that embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
fig. 1 is schematic block circuit diagram of the present invention.
Embodiment
as shown in the figure, the present invention includes detection module, A/D modular converter, amplification module, memory chip, comparison module, microprocessor, power supply, radio receiving transmitting module, irrigation control module, executing agency, display control module and display module; It is characterized in that: described detection module, A/D modular converter, amplification module, memory chip, comparison module are connected with the input port of microcontroller; Microprocessor is also connected with display module with power supply, radio receiving transmitting module, irrigation control module, executing agency, display control module.
microprocessor of the present invention is single-chip microcomputer.
electric resistance of soil value is relevant with its humidity, and time moist, resistance value is little, and time dry, resistance value is large, therefore weighs its humidity size by measuring electric resistance of soil value.But as directly measured with conventional DC electrical method, stable resistance value cannot be recorded.Because the moisture in soil can be considered electrolyte, will polarize under DC voltage effect, cause separation and the gathering of zwitterion, thus make electric resistance of soil value can not the humidity of reflect soil.
electric resistance of soil AR and inside circuit electric capacity 1 cform RC loop, form complete oscillating circuit with NE555 again; Meanwhile, the output signal due to NE555 is data signal, and the waveform shaping being equivalent to RC to vibrate is pulse signal, is convenient to be connected with numerical control system with measuring circuit frequency of oscillation, reaches the object measuring humidity.BR is the fixed resistance of inside circuit.According to the operation principle of NE555, we can know, as CCCU1/3V1<, 3 ends export as high level, and 7 ends are equivalent to open circuit, and electric capacity 1C is in charged state, and voltage raises gradually; As CCCU2/3V 1>, 3 ends export as low level, and 7 ends are equivalent to by a triode ground connection, and electric capacity 1C is in discharge condition, and voltage reduces gradually.Work as CCCU1/3V1<, 3 ends export high level again, and 7 ends are equivalent to open circuit, and electric capacity 1C is in charged state, and voltage raises gradually.
be understandable that, above about specific descriptions of the present invention, the technical scheme described by the embodiment of the present invention is only not limited to for illustration of the present invention, those of ordinary skill in the art is to be understood that, still can modify to the present invention or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meet.

Claims (2)

1. the measurement of soil moisture and an intelligent irrigation system, comprise detection module, A/D modular converter, amplification module, memory chip, comparison module, microprocessor, power supply, radio receiving transmitting module, irrigation control module, executing agency, display control module and display module; It is characterized in that: described detection module, A/D modular converter, amplification module, memory chip, comparison module are connected with the input port of microcontroller; Microprocessor is also connected with display module with power supply, radio receiving transmitting module, irrigation control module, executing agency, display control module.
2. a kind of measurement of soil moisture and intelligent irrigation system according to claim 1, is characterized in that: described microprocessor is single-chip microcomputer.
CN201310589614.3A 2013-11-21 2013-11-21 System for soil moisture measurement and intelligent irrigation Pending CN104642063A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310589614.3A CN104642063A (en) 2013-11-21 2013-11-21 System for soil moisture measurement and intelligent irrigation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310589614.3A CN104642063A (en) 2013-11-21 2013-11-21 System for soil moisture measurement and intelligent irrigation

Publications (1)

Publication Number Publication Date
CN104642063A true CN104642063A (en) 2015-05-27

Family

ID=53234125

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310589614.3A Pending CN104642063A (en) 2013-11-21 2013-11-21 System for soil moisture measurement and intelligent irrigation

Country Status (1)

Country Link
CN (1) CN104642063A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105432428A (en) * 2016-01-22 2016-03-30 福建师范大学福清分校 ARM-based water-saving irrigation intelligent system and implementation method thereof
CN106561417A (en) * 2016-10-31 2017-04-19 江西师范大学 Intelligent household pot culture watering system
CN111708396A (en) * 2020-07-12 2020-09-25 深圳市富世特智能科技有限公司 Plant automated inspection soil moisture nutrient fertilization lighting system that waters
EP3923704A4 (en) * 2019-02-15 2022-11-16 AgResearch Limited Ground surface condition sensing in irrigation systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105432428A (en) * 2016-01-22 2016-03-30 福建师范大学福清分校 ARM-based water-saving irrigation intelligent system and implementation method thereof
CN106561417A (en) * 2016-10-31 2017-04-19 江西师范大学 Intelligent household pot culture watering system
EP3923704A4 (en) * 2019-02-15 2022-11-16 AgResearch Limited Ground surface condition sensing in irrigation systems
CN111708396A (en) * 2020-07-12 2020-09-25 深圳市富世特智能科技有限公司 Plant automated inspection soil moisture nutrient fertilization lighting system that waters

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Application publication date: 20150527

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