CN202565889U - Full-automatic irrigation control system - Google Patents

Full-automatic irrigation control system Download PDF

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Publication number
CN202565889U
CN202565889U CN201220152480XU CN201220152480U CN202565889U CN 202565889 U CN202565889 U CN 202565889U CN 201220152480X U CN201220152480X U CN 201220152480XU CN 201220152480 U CN201220152480 U CN 201220152480U CN 202565889 U CN202565889 U CN 202565889U
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CN
China
Prior art keywords
electrically
programmable logic
logic controller
plc
plc programmable
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CN201220152480XU
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Chinese (zh)
Inventor
张兵
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Changzhou Institute of Technology
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Changzhou Institute of Technology
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Priority to CN201220152480XU priority Critical patent/CN202565889U/en
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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 provides a full-automatic irrigation control system, comprising a PC (Personal Computer), a communication interface circuit, a PLC (programmable logic controller), a power source, a humidity sensor, an A/D (analogue-to-digital) converting circuit, a rainfall sensor, a start/stop push button, an indicator lamp, an electromagnetic valve, a water pump motor and an alarm, wherein the PC is in two-way communication electric connection with the PLC; the power source supplies power for the PLC; the humidity sensor is electrically connected with the corresponding port of the PLC through the A/D converting circuit; the rainfall sensor is electrically connected with the corresponding input port of the PLC; the start/stop push button is electrically connected with the corresponding input port of the PLC; and the control ends of the indicator lamp, the electromagnetic valve, the water pump motor and the alarm are all electrically connected with the corresponding ports of the PLC respectively. The system is used for controlling irrigation, so that water and electricity can be saved.

Description

A kind of full-automatic irrigation control system
Technical field
The utility model relates to a kind of agricultural water-saving irrigation and controls system, is specifically related to a kind of full-automatic irrigation control system.
Background technology
Current, along with the development of electric information technology, Agricultural Information and automatization level also increase, and in field of agricultural irrigation, the automatic drip-irrigation technology has applied to industrialized agriculture, and progressively popularize to the land for growing field crops.But its control system of traditional automatic drip-irrigation technology generally can only carry out the irrigation control of fixed time sequence; Can not be according to the soil moisture state and Changes in weather such as whether rain control dynamically automatically; The accuracy of irrigating is not high, causes the waste to a certain degree of water resource and electricity consumption.
The utility model content
The purpose of the utility model is: the deficiency that overcomes prior art; A kind of full-automatic irrigation control system based on Programmable Logic Controller is provided; Can be according to the soil moisture state and situation such as whether rain start automatically or close the irrigation actuating unit, reach the purpose of energy-saving and water-saving.
The technical scheme of the utility model purpose is: the design feature of the full-automatic irrigation control system of the utility model is: comprise PC, communication interface circuit, PLC Programmable Logic Controller, power supply, humidity sensor, A/D change-over circuit, rain sensor, start-stop button, display lamp, magnetic valve, pump motor and alarm; Above-mentioned PC is electrically connected with the PORT COM of PLC Programmable Logic Controller is two-way through communication interface circuit; Power supply is electrically connected with PLC Programmable Logic Controller power end; Humidity sensor is electrically connected with the moisture signal input port of PLC Programmable Logic Controller through the A/D change-over circuit; Rain sensor is electrically connected with the rainfall signal input port of PLC Programmable Logic Controller; The start-stop button comprises start button and stop button, and start button is electrically connected with the enabling signal input port of PLC Programmable Logic Controller, and stop botton is electrically connected with the stopping signal input port of PLC Programmable Logic Controller; The control end of display lamp, magnetic valve, pump motor and alarm is electrically connected with the corresponding port of PLC Programmable Logic Controller respectively.
Further scheme is: above-mentioned communication interface circuit is the RS232 communication interface circuit.
Further scheme is: above-mentioned pump motor is for adopting the electromotor of Y/ △ start-up mode.
The utlity model has positive effect: (1) native system has full-automatic irrigation function, and the optimum humidity value contrast of humidity signal that can obtain according to soil humidity sensor and soil is implemented automatic irrigation, energy-saving and water-saving.(2) native system has manual set-up function, can set the timing irrigation time to a certain irrigated area according to customer requirements; (3) native system adopts the Y/ △ start-up mode under the PLC control to the start-up mode of pump motor, reduces the impact of pump motor to agricultural power network.
Description of drawings
Fig. 1 is the formation block diagram of the utility model;
Fig. 2 is the ladder diagram of the control program of the built-in manual irrigation pattern of system shown in Figure 1;
Fig. 3 is the ladder diagram of the control program of the built-in full-automatic irrigation pattern of system shown in Figure 1;
Fig. 4 is the ladder diagram of the Y/ △ pattern start-up control program of the pump motor in the system shown in Figure 1.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further detailed explanation:
(embodiment 1)
See Fig. 1; The full-automatic irrigation control system of present embodiment is made up of PC 1, communication interface circuit 2, PLC Programmable Logic Controller 3, power supply 31, humidity sensor 4, A/D change-over circuit 41, rain sensor 5, start-stop button 6, display lamp 7, magnetic valve 8, pump motor 9 and alarm 10.
PC 1 is electrically connected with the PORT COM of PLC Programmable Logic Controller 3 is two-way through communication interface circuit 2; Power supply 31 is electrically connected with the power end of PLC Programmable Logic Controller 3; Humidity sensor 4 is electrically connected with the moisture signal input port of PLC Programmable Logic Controller 3 through A/D change-over circuit 41; Rain sensor 5 is electrically connected with the rainfall signal input port of PLC Programmable Logic Controller 3; Start-stop button 6 comprises start button and stop botton, and start button is electrically connected with the enabling signal input port of PLC Programmable Logic Controller 3, and stop botton is electrically connected with the stopping signal input port of PLC Programmable Logic Controller 3; The control end of display lamp 7, magnetic valve 8, pump motor 9 and alarm 10 is electrically connected with the corresponding output end mouth of PLC Programmable Logic Controller 3 respectively.
In the present embodiment, PC 1 is selected microcomputer commonly used for use.PC 1 is arranged in the control room.PC 1 can be implemented management and control to many PLC Programmable Logic Controllers 3 as slave computer simultaneously through communication interface circuit.
Communication interface circuit 2 adopts the RS232 communication interface circuit.
Humidity sensor 4 is selected 2000YZ type soil B/P EGR Back Pressure Transducer EGR for use.
The model that rain sensor 5 employing Shanghai Greenland irrigation installation Co., Ltd produces is the RSD-BEx/RSD-CEx rain sensor.
Power supply 31 adopts the 24V dc source, for PLC Programmable Logic Controller 3 provides working power.
Start-stop button 6 is used for the startup of manual control of pump motor and stops.
The preferred FP1 of the Panasonic series of the model present embodiment of PLC Programmable Logic Controller 3 C40C programmable controller PLC; This type PLC has 24 input interfaces (X0~X23); Export 16 points (Y0~Y15); Have RS232 interface and calendar/time clock feature, its power supply is that 24V direct current or 100 ~ 240V exchange, and present embodiment is selected direct current 24V power supply for use.This type PLC can control 4 road analog-digital conversion a/ds, 4 way moulds conversion D/A.System can expand I/O port easily, and except that the humidity sensor was analog signal, other input/output signal was switching value in the system, and each input/output end port distribution condition of PLC is as shown in table 1 below:
Display lamp 7 can be provided with a plurality of, is used for the duty of the corresponding each side of display system: like manual control model display lamp, automatic control mode display lamp, each magnetic valve run indicator, power supply indicator, system's run indicator, soil lack of water indicator lamp, soil lack of water indicator lamp and the excessive indicator lamp of soil moisture.Aforesaid demonstration or indicator lamp constitute the display lamp 7 of present embodiment jointly, and the control end of each display lamp 7 is corresponding respectively to be electrically connected with the corresponding output port of PLC Programmable Logic Controller 3.
Magnetic valve 8 is the performer that receives the control system control of present embodiment with pump motor 9.The number of magnetic valve 8 is according to the setting of enforcement needs, and present embodiment is provided with 3 magnetic valves 8, controls the irrigation in 3 irrigated areas respectively.The control end of the control end of magnetic valve 8 and pump motor 9 is electrically connected with the corresponding output port of PLC Programmable Logic Controller 3 respectively, accepts the control signal of PLC Programmable Logic Controller 3 during work and carries out corresponding actions with the control duty.Pump motor 9 in the present embodiment all adopts asynchronous motor.
Alarm 10 can be the warning flashing indicator light, also can be the warning electric bell.The present embodiment electric bell of preferably reporting to the police.The corresponding output port of PLC Programmable Logic Controller 3 is electrically connected with the control end of alarm 10.When rain sensor had signal, the warning electric bell can correspondingly send alarm signal.
The full-automatic irrigation control system of present embodiment generally adopts automatic control mode work, also is provided with manual control model simultaneously:
The full-automatic irrigation control system of present embodiment is under automatic control mode; The humidity signal that PLC Programmable Logic Controller 3 obtains according to humidity sensor 4; Compare with the soil moisture of setting that is suitable for plant growth; Whether decision irrigates then, closes with rising of corresponding solenoid valve 8 through PLC Programmable Logic Controller 3 built-in control program control of pump motors 9.As the 2000YZ type soil B/P EGR Back Pressure Transducer EGR measurement category of humidity sensor 4 be negative pressure value 0~-85Kpa; Basically in the need water scope of plant; Generally speaking, when soil suction greater than-70KPa value, soil just need be poured water; Otherwise can influence the growth of plant, this piezoresistance sensor is output as 0~50mv; Fathoming is 200mm~2000mm, and the below ground part is decided as required, and overall accuracy is about ± 2 %; Environment for use is 0~500 ℃.Wheat jointing to heading stage the soil optimum moisture content use the soil negative pressure means be-50Kpa~-60Kpa, promptly, open the valve of pouring water crop irrigated when soil negative pressure during less than-60Kpa.In the present embodiment, the soil moisture higher limits of setting in the PLC Programmable Logic Controller 3 be-50Kpa, and lower limit is-60Kpa, and when the soil lack of water or when suitable, indicator lamp can be lighted accordingly simultaneously.
The ladder diagram of the built-in automatic irrigation control program of PLC Programmable Logic Controller 3 at wheat jointing to heading stage is as shown in Figure 3.
Manually under the control model, system can have the opening time of each magnetic valve 8 of manual setting and the function of opening sequence according to user's demand, and corresponding indicator lamp is bright when certain magnetic valve 8 closure.When rain sensor 5 has signal, when promptly raining, will stop to irrigate; While rainfall alarm equipment alarm; Setting irrigation system in the present embodiment has three irrigated areas, need irrigate 10 minutes an irrigated area, opens No. 2 irrigated area magnetic valves 8 and pours water 5 minutes; Open No. 3 irrigated area magnetic valves 8 then and poured water 15 minutes, stop at last irrigating.The irrigation control software ladder diagram that is provided with in the PLC Programmable Logic Controller 3 is as shown in Figure 2.
Because agricultural power network is little, impact resistance is relatively poor, hopes simply smooth start of motor, but asynchronous machine is not if take any measure; Directly insert the electrical network starting, power factor is very low when then not only starting, and causes starting torque less; And starting current is very big, reaches 4~7 times of rated current, and startability is abominable; Power consumption is bigger, electrical network is impacted, and influence electrical machinery life.Thereby in the present embodiment, the originate mode of pump motor 9 adopts the Y/ △ start-up mode of electric motor starting, relay K M during startup YConnect, pump motor 9 is pressed the operation of Y type Starting mode, KM after 2 seconds YBreak off, Y type mode finishes relay K M Connect, pump motor 9 is pressed the operation of △ type getting type, promptly accomplishes Y/ △ and starts.The ladder diagram of the control program of PLC Programmable Logic Controller 3 control of pump motors 9 realization Y-△ Starting mode is as shown in Figure 4.
Above embodiment is the explanation to the embodiment of the utility model; But not to the restriction of the utility model; The technical staff in relevant technologies field is under the situation of spirit that does not break away from the utility model and scope; Can also make various conversion and variation and obtain the corresponding technical scheme that is equal to, so all technical schemes that are equal to all should be included into the scope of patent protection of the utility model.

Claims (3)

1. a full-automatic irrigation control system is characterized in that: comprise PC (1), communication interface circuit (2), PLC Programmable Logic Controller (3), power supply (31), humidity sensor (4), A/D change-over circuit (41), rain sensor (5), start-stop button (6), display lamp (7), magnetic valve (8), pump motor (9) and alarm (10); Described PC (1) is through PORT COM two-way be electrically connected of communication interface circuit (2) with PLC Programmable Logic Controller (3); Power supply (31) is electrically connected with the power end of PLC Programmable Logic Controller (3); Humidity sensor (4) is electrically connected with the moisture signal input port of PLC Programmable Logic Controller (3) through A/D change-over circuit (41); Rain sensor (5) is electrically connected with the rainfall signal input port of PLC Programmable Logic Controller (3); Start-stop button (6) comprises start button and stop button, and start button is electrically connected with the enabling signal input port of PLC Programmable Logic Controller (3), and stop botton is electrically connected with the stopping signal input port of PLC Programmable Logic Controller (3); The control end of display lamp (7), magnetic valve (8), pump motor (9) and alarm (10) is electrically connected with the corresponding output end mouth of PLC Programmable Logic Controller (3) respectively.
2. full-automatic irrigation control system according to claim 1 is characterized in that: described communication interface circuit (2) is the RS232 communication interface circuit.
3. full-automatic irrigation control system according to claim 1 is characterized in that: described pump motor (9) is for adopting the electromotor of Y/ △ start-up mode.
CN201220152480XU 2012-04-12 2012-04-12 Full-automatic irrigation control system Expired - Fee Related CN202565889U (en)

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Application Number Priority Date Filing Date Title
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103858731A (en) * 2014-03-17 2014-06-18 北京科泰兴达高新技术有限公司 Intelligent water-saving drip irrigation system using nanofiltration membrane water treatment equipment
CN103875508A (en) * 2014-03-11 2014-06-25 长安大学 Intelligent flower watering system controlled by mobile phone Bluetooth or PC and control method of intelligent flower watering system
CN104719101A (en) * 2015-02-06 2015-06-24 盐城工业职业技术学院 Intelligent soil irrigation device
CN105075809A (en) * 2015-04-20 2015-11-25 华北水利水电大学 Field identification irrigation system based on PLC automatic control
CN105409724A (en) * 2015-12-31 2016-03-23 江苏汇智知识产权服务有限公司 Intelligent drip irrigation system
CN105941100A (en) * 2016-06-21 2016-09-21 常州工学院 Novel constant-pressure sprinkling irrigation control system
CN106106060A (en) * 2016-06-21 2016-11-16 常州工学院 automatic water-saving irrigation controller
CN106106059A (en) * 2016-06-21 2016-11-16 常州工学院 A kind of intelligent irrigation control system
CN106465673A (en) * 2016-08-30 2017-03-01 中兴长天信息技术(南昌)有限公司 A kind of wisdom Agricultural Information monitoring method based on LORA and system
CN106613751A (en) * 2016-10-14 2017-05-10 河北省农林科学院粮油作物研究所 Method for adjusting and controlling florescence irrigation amount based on precipitation amount from winter wheat jointing to flowering stage

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103875508A (en) * 2014-03-11 2014-06-25 长安大学 Intelligent flower watering system controlled by mobile phone Bluetooth or PC and control method of intelligent flower watering system
CN103875508B (en) * 2014-03-11 2016-03-23 长安大学 The intelligent flower watering system that a kind of Bluetooth of mobile phone or PC control and control method thereof
CN103858731A (en) * 2014-03-17 2014-06-18 北京科泰兴达高新技术有限公司 Intelligent water-saving drip irrigation system using nanofiltration membrane water treatment equipment
CN104719101A (en) * 2015-02-06 2015-06-24 盐城工业职业技术学院 Intelligent soil irrigation device
CN105075809A (en) * 2015-04-20 2015-11-25 华北水利水电大学 Field identification irrigation system based on PLC automatic control
CN105409724A (en) * 2015-12-31 2016-03-23 江苏汇智知识产权服务有限公司 Intelligent drip irrigation system
CN105941100A (en) * 2016-06-21 2016-09-21 常州工学院 Novel constant-pressure sprinkling irrigation control system
CN106106060A (en) * 2016-06-21 2016-11-16 常州工学院 automatic water-saving irrigation controller
CN106106059A (en) * 2016-06-21 2016-11-16 常州工学院 A kind of intelligent irrigation control system
CN106465673A (en) * 2016-08-30 2017-03-01 中兴长天信息技术(南昌)有限公司 A kind of wisdom Agricultural Information monitoring method based on LORA and system
CN106613751A (en) * 2016-10-14 2017-05-10 河北省农林科学院粮油作物研究所 Method for adjusting and controlling florescence irrigation amount based on precipitation amount from winter wheat jointing to flowering stage

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EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121205

Termination date: 20150412