CN203261929U - Agricultural irrigation monitoring system based on Internet of Things - Google Patents

Agricultural irrigation monitoring system based on Internet of Things Download PDF

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Publication number
CN203261929U
CN203261929U CN2013202227398U CN201320222739U CN203261929U CN 203261929 U CN203261929 U CN 203261929U CN 2013202227398 U CN2013202227398 U CN 2013202227398U CN 201320222739 U CN201320222739 U CN 201320222739U CN 203261929 U CN203261929 U CN 203261929U
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soil moisture
moisture content
monitoring
internet
node
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CN2013202227398U
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陈勇
易润忠
郭宇
高尚
罗俊海
朱玉全
刘传清
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NANJING LONGYUAN MICROELECTRONIC TECHNOLOGY Co Ltd
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NANJING LONGYUAN MICROELECTRONIC TECHNOLOGY Co Ltd
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    • 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

Abstract

The utility model discloses an agricultural irrigation monitoring system based on the Internet of Things. The agricultural irrigation monitoring system comprises a plurality of soil moisture status monitoring nodes arranged within a field monitoring range, wherein each soil moisture status monitoring node comprises a plurality of soil moisture content sensors which are buried at different depths underground and a soil moisture status signal processing module. Each soil moisture status signal processing module sends control information to a subordinate fine drop irrigation control node through the Internet of Things. Each fine drop irrigation control node comprises a ZigBee low-power-consumption short-distance wireless communication module, a single chip microcomputer and a control execution unit. The system can carry out three-dimensional monitoring on the different-depth soil moisture content of plant roots underground, achieves measurement and control of fine drop irrigation operations without support of a fixed network, has the advantages of being quick to carry out, strong in damage-proof performance and the like, and is low in communication cost when used in a large scale, convenient to install and maintain and especially suitable for rural areas with poor signal coverage.

Description

A kind of agricultural irrigation monitoring system based on Internet of Things
Technical field
The utility model relates to the irrigation monitoring system of using in agricultural production process, particularly a kind of irrigation monitoring system based on Internet of Things.
Background technology
Agricultural irrigation is to solve one of effective scheme of and all kinds of disparities between supply and demand that cause day by day in short supply by water resource, it can be under the prerequisite that does not affect crop yield according to crop water information in good time, irrigate in right amount, thereby reach the purpose that significantly reduces agricultural water.In irrigation operation, the soil moisture content take soil moisture content as representative is to calculate an important indicator that needs water information.Therefore, the soil moisture content that comprises soil moisture content is carried out continuously, monitors in meticulous irrigation and water resources rational use on a large scale, accurately and have great importance.But, still there is following problem in actual applications in existing irrigation TT﹠C system: on measurement point, the measurement of soil moisture content generally is confined to the single degree of depth under the earth's surface, a plurality of deep soil moisture content of plant root under the measurement point earth's surface are not carried out stereoscopic monitoring, can't reflect complete and exactly the soil moisture situation of monitored area; The soil moisture content information source is single, easily is subjected to the impact of extraneous accidentalia, and unrealized soil moisture content information according to a plurality of measurement points under the earth's surface is carried out analysis-by-synthesis and carried out irrigation control according to result.Soil needs water information and drip irrigation on off control signal to transmit by wireless services such as WIFI, larger to the fixed communication network dependence, when using on a large scale, communications cost is higher, and installation and maintenance is all inconvenient, particularly cover relatively poor rural area, system's fluctuation of service at signal.
Summary of the invention
Technical problem to be solved in the utility model is for the deficiencies in the prior art, a kind of agricultural irrigation monitoring system based on Internet of Things is provided, this system can carry out stereoscopic monitoring to a plurality of deep soil moisture content of plant root under the earth's surface, does not need fixed network support realization to the observing and controlling of meticulous drip irrigation operation.
The utility model is achieved through the following technical solutions the utility model purpose:
A kind of agricultural irrigation monitoring system based on Internet of Things, comprise several soil moisture content monitoring nodes that are arranged in the monitor on field scope, each soil moisture content monitoring node comprises that soil moisture content signal processing module and several are embedded in the soil moisture content sensor of ground end different depth, described soil moisture content signal processing module is controlled node by Internet of Things to the meticulous drip irrigation of its subordinate and is sent control information, several adjacent soil moisture content monitoring nodes consist of one bunch, and each bunch comprises a cluster head node.
The signal processing module of soil moisture content described in the utility model comprises microprocessor, signal condition module and A/D module, described microprocessor is connected with signal condition module and A/D module, the pumping signal input of described soil moisture content sensor is connected with the output of signal condition module, and the measuring-signal output of soil moisture content sensor is connected with the input of A/D module; Described A/D module comprises 4 12 high-precision A/D ALT-CH alternate channels, and data signal sends to microprocessor by the mode of serial communication, and microprocessor is connected with wireless communication module with memory.Signal condition module in the utility model comprises 4 operational amplifiers, form respectively 4 followers, the input of described follower is connected with the pumping signal output of microprocessor, output is connected with several pumping signal pins that are embedded in the soil moisture content sensor of ground end different depth, microprocessor control signal conditioning module starts several soil moisture content sensors that are embedded in ground end different depth according to certain time interval successively with pumping signal after follower amplifies, to realize that the soil moisture content of different soil is carried out measurement in space
The node of cluster head described in the utility model can all upload to the cloud computing platform of remote server Internet of Things with the soil moisture content monitoring information that receives from described soil moisture content monitoring node by WIFI network or internet, cloud computing platform can dock with agriculture specialist system simultaneously.
Meticulous drip irrigation described in the utility model is controlled node and is comprised control performance element, ZigBee low-power consumption short-range wireless communication module and single-chip microcomputer, and described control performance element, ZigBee low-power consumption short-range wireless communication module are connected with single-chip microcomputer; Described control performance element comprises driving circuit for electromagnetic valve, magnetic valve and the water pipe for drip irrigation that is linked in sequence, described ZigBee low-power consumption short-range wireless communication module adopts the mode of the 2. 4GHz short distance low-consumption wireless communications meet Zigbee protocol to receive drip irrigation control information from higher level's soil moisture content monitoring node
Meticulous drip irrigation described in the utility model controls node and the cluster head node carries out wireless self-networking, thereby all nodes of whole agricultural irrigation booth are carried out convergence and data hop transmission.
Soil moisture content described in the utility model gathers Centroid and regularly sends networking information to the meticulous irrigation control node of its subordinate, after described meticulous drip irrigation control node was received the networking information of higher level's soil moisture content monitoring node, meticulous drip irrigation TT﹠C system entered the group net operation pattern.
Compared with prior art, the utlity model has following useful technique effect:
Adopt a plurality of wireless sensers that are arranged in different depth due to monitoring node, make meticulous drip irrigation TT﹠C system of the present utility model realize the soil moisture content of a plurality of different depths of plant root under the earth's surface is carried out stereoscopic monitoring at each measurement point, reflect more exactly the soil moisture situation of monitored area; System according to the soil moisture content information judgement crop water situation of a plurality of degree of depth under each measurement point earth's surface to carry out drip irrigation, can get rid of to a great extent the interference of accidentalia, control more stable, accurate, communication between each functional node of system passes on the mode of all communicating by letter by the 2. 4GHz high-frequency short-distance low-consumption wireless that meet Zigbee protocol to carry out with instruction, without any need for the support of fixed network, have the characteristics such as rapid deployment, survivability be strong.During extensive the use, communications cost is lower, and installation and maintenance is convenient, is specially adapted to signal and covers relatively poor rural area.
The irrigation control node possesses independently time acquisition capability, make the irrigation control system both can independent operating, also can carry out internet of things networking operation with the soil moisture content monitoring node, application mode is versatile and flexible, is specially adapted to that large-scale soil information obtains and meticulous drip irrigation is controlled occasion.Irrigation system can be docked with long-range server cloud computing platform simultaneously, thereby is convenient to the intervention of each agriculture specialist system.System's the utility model can make irrigation technique automatically regulate according to the lack of water situation of soil and irrigate start-stop time and duration, and effectively saving water resource, boost agricultural yield
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment:
Fig. 1 is that the utility model is based on the structural representation of the agricultural irrigation TT﹠C system of Internet of Things;
Fig. 2 is that soil moisture content monitoring node of the present utility model consists of schematic diagram;
Fig. 3 is that irrigation control node of the present utility model consists of schematic diagram.
Embodiment
As shown in Figure 1, the utility model comprises several soil moisture content monitoring nodes that are arranged in the monitor on field scope, and several irrigation control nodes and cluster head node soil moisture content monitoring node consist of as shown in Figure 1.The soil moisture content monitoring node comprises 4 soil moisture content sensors that are embedded in ground end different depth, msp430 microprocessor, signal condition module, memory, usb circuit, ZigBee wireless communication unit, A/D module, solar panel, charge control module, and solar cell.In the soil moisture content monitoring node, the msp430 microprocessor is connected with signal condition module and A/D module, four pumping signal inputs that are embedded in the soil moisture content sensor of ground end different depth are connected with the output of conditioning module, and the measuring-signal output is connected with the input of A/D module.The signal condition module mainly comprises 4 operational amplifiers, forms respectively 4 followers.The input of each follower is connected with the pumping signal output of msp430 microprocessor, output is connected with the pumping signal pin of soil moisture content sensor, msp430 microprocessor control signal conditioning module starts four soil moisture content sensors after according to certain time interval, pumping signal being amplified through follower successively, can realize the soil moisture content of 4 different soil is carried out measurement in space.Each sensor measurement signal is the aanalogvoltage form, after carrying out the A/D conversion by the A/D module, data signal is sent to msp430 microprocessor A/D module comprises 4 12 high-precision A/D ALT-CH alternate channels, data signal sends to msp430 microprocessor usb circuit to be connected with the msp430 microprocessor by the mode of serial communication, and the download and the online of metrical information that are used for control program are uploaded.
The msp430 microprocessor is connected with memory, each measure complete after the msp430 microprocessor soil moisture content information be stored in memory msp430 microprocessor be connected with the ZigBee wireless communication unit, the ZigBee wireless communication unit is in resting state at ordinary times, the msp430 microprocessor wakes the ZigBee wireless communication unit up according to certain time interval every day, adopts the mode of the 2. 4GHz short distance low-consumption wireless communications that meet Zigbee protocol that the information on soil moisture in memory is uploaded to the cluster head node by the ZigBee wireless communication unit.
The cluster head node regularly sends the data upload request to the soil moisture content monitoring node, if the soil moisture content monitoring node fails to receive the data upload request from the cluster head node after a plurality of RQ cycles, is considered as the cluster head joint.Point failure.The soil moisture content monitoring node is no longer uploaded monitoring information, then monitoring information is stored in the memory of self.After the cluster head node receives soil moisture content monitoring information from the soil moisture content monitoring node, can send ACK message to cloud computing platform, to inform its data transmission success of soil moisture content monitoring node that sends the soil moisture content monitoring information and to inform network that it is in the state of normal operation.
When the soil moisture content monitoring node sent monitoring information to the cluster head node simultaneously, the cluster head node abandoned the Monitoring Data bag of receiving when conflict occurs, and to all soil moisture content monitoring node broadcast collision information.The soil moisture content monitoring node is uploaded monitoring information to the cluster head node after delaying time according to certain agreement again, avoids the loss of data that causes due to communication contention aware.
Soil moisture content monitoring node and cluster head Node configuration have the independent solar supply module group that comprises solar panel, charge control module and rechargeable battery.Solar panel is connected with charge control module, and charge control module is connected with rechargeable battery.Charge control module realizes charging control according to the voltage connection of rechargeable battery or the charge circuit between cut-out solar panel and rechargeable battery.Rechargeable battery provides normal operation required power supply for the corresponding device in soil moisture content monitoring node and cluster head node.
The irrigation control node structure as shown in Figure 3.Meticulous drip irrigation is controlled node and is comprised the msp430 microprocessor, ZigBee low-power consumption short-range wireless communication module, 3. 6V battery, real-time clock, driving circuit for electromagnetic valve, magnetic valve, irrigation pipe, 3 LED and 9V power supply.Keyboard circuit is connected with msp430 microprocessor single-chip microcomputer, real-time clock is connected with msp430 microprocessor single-chip microcomputer, 3 LED are connected with msp430 microprocessor single-chip microcomputer, driving circuit for electromagnetic valve is connected with msp430 microprocessor single-chip microcomputer, magnetic valve is connected with driving circuit for electromagnetic valve, and irrigation pipe is connected with magnetic valve.
The msp430 microprocessor single-chip microcomputer of irrigation control node is connected with ZigBee low-power consumption short-range wireless communication module, receives the drip irrigation control information from higher level's soil moisture content monitoring node.The type node comprises independent working mode and networking mode of operation.
Under independent working mode, msp430 microprocessor single-chip microcomputer is in dormant battery saving mode; Real-time clock produced an interrupt signal in every 1 second, judged whether to be added to 30 seconds after msp430 microprocessor single-chip microcomputer wakes up, if not, directly enter battery saving mode; If 3 LED flickers once, normally move with characterization system, and judge whether system is in the irrigation state.If system is not in the irrigation state, msp430 microprocessor single-chip microcomputer reads the current time of real-time clock and compares with the start-up time of drip irrigation: if equate, the msp430 microprocessor microcontroller is controlled driving circuit for electromagnetic valve and is opened magnetic valve and irrigate with the conducting irrigation pipe.If the current time of real-time clock is unequal start-up time with irrigation, directly turn back to battery saving mode.If system is in the irrigation state, msp430 microprocessor single-chip microcomputer reads the current time of real-time clock and compares with the irrigation value finish time that calculates: if equate, the shut electromagnetic valve drive circuit stops drip irrigation, and the state of closing of drip irrigation is write EEPROM and returns to battery saving mode; If unequal, directly turn back to battery saving mode.
Under the networking mode of operation of Internet of Things, soil moisture content monitoring node msp430 microprocessor is processed the soil moisture content data that collect, if the soil moisture content that monitors is higher or lower than the standard value certain limit, send control information to its subordinate's irrigation control node by the ZigBee wireless communication unit, stop or starting irrigation.Under the networking mode of operation, the ZigBee low-power consumption short-range wireless communication module of irrigation control node receives from higher level's soil moisture content monitoring node and irrigates information, and the EEPROM that this information is sent to msp430 microprocessor single-chip microcomputer inside has been stored unique sequence number identified, if the sequence number in soil moisture content monitoring node control command is identical with self sequence number, the priority of wireless irrigation control order is higher than the timing drip irrigation, and msp430 controls the closure of driving circuit for electromagnetic valve to stop or starting irrigation according to this information.
The soil moisture content monitoring node regularly sends networking information to its subordinate's irrigation control node, and the irrigation control node enters the group net operation pattern after receiving the networking information of higher level's soil moisture content monitoring node.If meticulous irrigation control node exceeds the time limit not receive the information that exists from higher level's soil moisture content monitoring node, automatically change independent working mode into by networking model.

Claims (5)

1. agricultural irrigation monitoring system based on Internet of Things, it is characterized in that: comprise several soil moisture content monitoring nodes that are arranged in the monitor on field scope, each soil moisture content monitoring node comprises that soil moisture content signal processing module and several are embedded in the soil moisture content sensor of ground end different depth, described soil moisture content signal processing module is controlled node by Internet of Things to the meticulous drip irrigation of its subordinate and is sent control information, several adjacent soil moisture content monitoring nodes consist of one bunch, and each bunch comprises a cluster head node.
2. a kind of agricultural irrigation monitoring system based on Internet of Things according to claim 1, it is characterized in that: described soil moisture content signal processing module comprises microprocessor, signal condition module and A/D module, described microprocessor is connected with signal condition module and A/D module, the pumping signal input of described soil moisture content sensor is connected with the output of signal condition module, and the measuring-signal output of soil moisture content sensor is connected with the input of A/D module; Described A/D module comprises 4 12 high-precision A/D ALT-CH alternate channels, and data signal sends to microprocessor by the mode of serial communication, and microprocessor is connected with wireless communication module with memory.
3. a kind of agricultural irrigation monitoring system based on Internet of Things according to claim 1 and 2, it is characterized in that: described cluster head node can all upload to the cloud computing platform of remote server Internet of Things with the soil moisture content monitoring information that receives from described soil moisture content monitoring node by WIFI network or internet, and cloud computing platform can dock with agriculture specialist system simultaneously.
4. a kind of agricultural irrigation monitoring system based on Internet of Things described according to claim 1, it is characterized in that: described meticulous drip irrigation is controlled node and is comprised control performance element, ZigBee short-range wireless communication module and single-chip microcomputer, and described control performance element, short-range wireless communication module are connected with single-chip microcomputer; Described control performance element comprises driving circuit for electromagnetic valve, magnetic valve and the water pipe for drip irrigation that is linked in sequence.
5. a kind of agricultural irrigation monitoring system based on Internet of Things according to claim 4, it is characterized in that: described meticulous drip irrigation controls node and the cluster head node carries out wireless self-networking, thereby all nodes of whole agricultural irrigation booth are carried out convergence and data hop transmission.
CN2013202227398U 2013-04-27 2013-04-27 Agricultural irrigation monitoring system based on Internet of Things Active CN203261929U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104303961A (en) * 2014-11-10 2015-01-28 中国科学院地理科学与资源研究所 Automatic irrigation control device and control method thereof
CN105284556A (en) * 2015-10-29 2016-02-03 桂林市腾瑞电子科技有限公司 Intelligent sprinkling irrigation system
CN106577191A (en) * 2015-10-14 2017-04-26 深圳市云海物联科技有限公司 Novel spraying irrigation control system
WO2018176239A1 (en) * 2017-03-28 2018-10-04 深圳市翼动科技有限公司 Intelligent control system for automatic irrigation of garden based on cloud computing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104303961A (en) * 2014-11-10 2015-01-28 中国科学院地理科学与资源研究所 Automatic irrigation control device and control method thereof
CN106577191A (en) * 2015-10-14 2017-04-26 深圳市云海物联科技有限公司 Novel spraying irrigation control system
CN105284556A (en) * 2015-10-29 2016-02-03 桂林市腾瑞电子科技有限公司 Intelligent sprinkling irrigation system
WO2018176239A1 (en) * 2017-03-28 2018-10-04 深圳市翼动科技有限公司 Intelligent control system for automatic irrigation of garden based on cloud computing

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