CN104904571A - Intelligent farmland irrigation device and control method thereof - Google Patents
Intelligent farmland irrigation device and control method thereof Download PDFInfo
- Publication number
- CN104904571A CN104904571A CN201510356262.6A CN201510356262A CN104904571A CN 104904571 A CN104904571 A CN 104904571A CN 201510356262 A CN201510356262 A CN 201510356262A CN 104904571 A CN104904571 A CN 104904571A
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- Prior art keywords
- chip microcomputer
- irrigation
- soil
- soil humidity
- converter
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Classifications
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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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Soil Sciences (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses an intelligent farmland irrigation device, which comprises a microcontroller, a human-computer interaction interface, an acoustic-optic alarm unit, a display unit, a soil humidity sensor, a wireless electromagnetic, an external data storage device, a meteorology monitoring system and an irrigation timer, wherein the external data storage device is connected to a three-state output locking storage device; the invention also discloses an intelligent farmland irrigation device control method; the soil humidity sensor is used to transmit the soil humidity information to an AD converter connected to the microcontroller through wireless network; after the soil humidity information is converted into digital signals by the AD converter, the digital signals are respectively transmitted to the microcontroller, the external data storage device and the three-state output locking storage device; if the soil humidity is lower than the lowest humidity value set by the human-computer interaction interface, the microcontroller is used to further judge the future rainfall capacity through the meteorology monitoring system; the irrigation time is controlled by the irrigation timer; and at last, the control signals are sent to a wireless electromagnetic valve through the wireless network, starting the irrigation device.
Description
Technical field
The present invention relates to a kind of intelligent farmland irrigating device, also relate to a kind of control method of intelligent farmland irrigating device, belong to agriculture automatic control technology field.
Background technology
Once had data statistics to show, China per capita year water resource be 2,000 liang of hectosteres, far below world's per capita share; China has huge population, is also quite large to the demand of water.China's water consumption agriculturally has four hundred billion cubic meters, and accounting for total water consumption about has 80 percent, only accounts for world agriculture total amount 1 17.Farmland irrigation water accounts between agricultural water total amount ten to percent 9 percent 95, although large percentage, agricultural irrigation is lack of water still.Although there is a large amount of water resources to be used on farmland, because technology is not in place, and serious waste water resource, cause its availability to only have 43 percent, far below developed country.
On October 09th, 2013, Chinese patent database disclosed the utility model patent that 1 name is called " a kind of wireless irrigation valve controller ", its application number is: 201320121493.5, it comprises microprocessor, with microprocessor connected power source module, memory module, information acquisition module, GPRS transmission module, drive control module and state acquisition module; Drive control module connects impulse electromagnetic valve, state acquisition model calling feedback of status switch; Information acquisition module comprises soil temperature-moisture sensor and meteorological station; Power module is also connected with GPRS transport module with memory module, information acquisition module, drive control module.Microprocessor is connected with antenna, and antenna is located on ground.Realize measuring the collection of soil, environment weather parameter in region by wireless sensor network, and pass to remote control center, control centre is by the decision-making of irrigation management software automatic analysis, scene is irrigated to the equipment such as magnetic valve and carry out remote controlled in wireless, the status information of gathered sensor information and magnetic valve is shown in real time at monitor terminal simultaneously, scientific guidance carries out timely and appropriate discovery irrigation, thus realize the sustainable use of water resource, and irrigation automation and intellectuality.Its weak point is: do not possess alarm unit, cannot output alarm when system malfunctions, is unfavorable for supervision and management; Do not possess human-computer interaction interface, sets itself parameter can not be needed according to different regions and crops, be not easy to promote the use of.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of intelligent farmland irrigating device, solving farm irrigation system in prior art can not effectively supervise, and restricted application, is not easy to the technical problem promoted the use of.
For solving the problems of the technologies described above, the intelligent farmland irrigating device of one provided by the present invention, comprise the single-chip microcomputer being positioned at Control Room, the human-computer interaction interface be connected with single-chip microcomputer, for the acousto-optic warning unit of fault alarm, for data and the display unit of malfunction coefficient, the soil humidity sensor be distributed in farmland, the irrigation rig be communicated with water system and the radio magnet valve that opens and closes for control irrigation device; Described single-chip microcomputer is also connected with external data memory, weather monitoring system and irrigation timer, described external data memory is connected with ternary output latch;
Soil humidity information is transferred to the a/d converter be connected with single-chip microcomputer by described soil humidity sensor by wireless network, after soil humidity information is converted to data signal by a/d converter, transfer to single-chip microcomputer, external data memory, ternary output latch respectively; If soil moisture is lower than the minimum humidity value set by human-computer interaction interface, then single-chip microcomputer judges following rainfall further by weather monitoring system, by irrigating the timer control irrigation time, sending a control signal to radio magnet valve finally by wireless network, opening irrigation rig.
Described audible-visual annunciator comprises loudspeaker and light emitting diode D1, and one end of loudspeaker is connected with the corresponding pin of single-chip microcomputer, and the other end is connected with power supply VCC, is connected after power supply VCC series limiting resistor R2, light emitting diode D1 with single-chip microcomputer.
Described single-chip microcomputer by expansion interface with for driving the drive circuit of display unit to be connected.
Described a/d converter selects ADC0809 chip, and the CLOCK pin of ADC0809 chip connects 74HC74 chip, as the clock circuit of ADC0809 chip.
Compared with prior art, a kind of intelligent farmland irrigating device provided by the invention reaches
beneficial effectbe: be provided with acousto-optic warning unit that, if irrigation time arrives, soil moisture is still less than minimum humidity value, or network signal bust this or soil moisture exceed most high humidity angle value, can output alarm in time, be beneficial to farmland supervision and management; Be provided with irrigation timer, in conjunction with following rainfall setting irrigation time, control more timely, convenient, effective; Be provided with human-computer interaction interface, can according to different regions, different crops need the minimum humidity value of sets itself and most high humidity angle value, applied widely, be beneficial to and promote the use of.
Another object of the present invention is to the control method that a kind of intelligent farmland irrigating device is provided, comprise the steps:
step one: initialize:minimum humidity value, the time of fire alarming of acousto-optic warning unit and the weather monitoring cycle of weather monitoring system is set by human-computer interaction interface;
step 2: data acquisition:soil humidity sensor gathers the soil moisture in farmland, by wireless network transmissions to the a/d converter be connected with single-chip microcomputer, soil humidity information is converted to digital data transmission and carries out Analysis of Policy Making to single-chip microcomputer by a/d converter, transfer to external data memory and ternary output latch simultaneously, latch for current data;
step 3: Analysis of Policy Making and execution:single-chip microcomputer by the data signal of soil moisture compared with the minimum humidity value of setting, if be less than minimum humidity value, then single-chip microcomputer transfers following rainfall from weather monitoring system further, by irrigating timer sets irrigation time, send a control signal to radio magnet valve finally by wireless network, open irrigation rig; Display unit shows farmland current soil humidity value in real time;
step 4: fault alarm:if irrigation time arrives, soil moisture is still less than minimum humidity value, or network signal bust this, acousto-optic warning unit output alarm.
Compared with prior art, the control method of intelligent farmland irrigating device provided by the invention reaches
beneficial effect: according to current soil humidity in conjunction with following rainfall, by setting irrigation time, realize field irrigation timely and appropriate discovery, there is higher automation and intelligent level; Possess fault alarm function, be convenient to the supervision and management in farmland.
Accompanying drawing explanation
Fig. 1 is the schematic block circuit diagram of intelligent farmland irrigating device provided by the invention.
Fig. 2 is the annexation circuit diagram of single-chip microcomputer and each unit.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, it is the schematic block circuit diagram of intelligent farmland irrigating device, comprise the single-chip microcomputer being positioned at Control Room, the human-computer interaction interface be connected with single-chip microcomputer, for the acousto-optic warning unit of fault alarm, for data and the display unit of malfunction coefficient, the soil humidity sensor be distributed in farmland, the irrigation rig be communicated with water system and the radio magnet valve that opens and closes for control irrigation device.Single-chip microcomputer is also connected with external data memory, weather monitoring system and irrigation timer, external data memory is connected with ternary output latch.
Soil humidity information is transferred to the a/d converter be connected with single-chip microcomputer by soil humidity sensor by wireless network, after soil humidity information is converted to data signal by a/d converter, transfer to single-chip microcomputer, external data memory, ternary output latch respectively.If soil moisture is lower than the minimum humidity value set by human-computer interaction interface, then single-chip microcomputer judges following rainfall further by weather monitoring system, by irrigating the timer control irrigation time, sending a control signal to radio magnet valve finally by wireless network, opening irrigation rig.
As shown in Figure 2, AT89C51 single-chip microcomputer selected by single-chip microcomputer, because AT89C51 single-chip microcomputer internal reservoir is less, therefore the expansion selecting 6116 external data memories to come single-chip microcomputer in this design.P2.3 is as chip selection signal, and A10, A9, A8 are the data cells that the addressing of P2 port is selected.AT89C51 single-chip microcomputer is due to the limitation by number of pins, P0 port not only can be used as data wire and use, also can use as low eight bit address lines, in order to the two is well distinguished, need to add ternary output latch in the outside of single-chip microcomputer, select 74LS373 chip, it is a kind of latch with triple gate.When ALE exports trailing edge, the LE pin of 74LS373 receives trailing edge, and data are stored in ternary output latch, and P0 mouth uses as data/address bus afterwards.
Audible-visual annunciator comprises loudspeaker and light emitting diode D1, and one end of loudspeaker is connected with the corresponding pin of single-chip microcomputer, and the other end is connected with power supply VCC, is connected after power supply VCC series limiting resistor R2, light emitting diode D1 with single-chip microcomputer.Single-chip microcomputer by expansion interface with for driving the drive circuit of display unit to be connected.A/d converter selects ADC0809 chip, and the resolution of ADC0809 chip is 8, adopts single+5V to power, and does not need the adjustment carrying out zero point and full scale.A/d converter needs to start switching signal in external control just can carry out translation data, ADC0809 chip uses pulse to carry out startup analog-to-digital conversion, want the control conversion starting analog-digital converter, only need to be loaded into a sine pulse signal at START input pin, when for rising edge time, carry out reset operation to chip, when for trailing edge, the while that a/d converter just starting to carry out analog-to-digital conversion, eoc signal output is in low level; After analog-to-digital conversion terminates, EOC becomes high level, just can send signal to single-chip microcomputer, informs that single-chip microcomputer can read the digital quantity of transformation result.The CLOCK pin of ADC0809 chip connects 74HC74 chip, as the clock circuit of ADC0809 chip.
Present invention also offers a kind of control method of intelligent farmland irrigating device, comprise the steps:
step one: initialize:minimum humidity value, the time of fire alarming of acousto-optic warning unit and the weather monitoring cycle of weather monitoring system is set by human-computer interaction interface;
step 2: data acquisition:soil humidity sensor gathers the soil moisture in farmland, by wireless network transmissions to the a/d converter be connected with single-chip microcomputer, soil humidity information is converted to digital data transmission and carries out Analysis of Policy Making to single-chip microcomputer by a/d converter, transfer to external data memory and ternary output latch simultaneously, latch for current data;
step 3: Analysis of Policy Making and execution:single-chip microcomputer by the data signal of soil moisture compared with the minimum humidity value of setting, if be less than minimum humidity value, then single-chip microcomputer transfers following rainfall from weather monitoring system further, by irrigating timer sets irrigation time, send a control signal to radio magnet valve finally by wireless network, open irrigation rig; Display unit shows farmland current soil humidity value in real time;
step 4: fault alarm:if irrigation time arrives, soil moisture is still less than minimum humidity value, or network signal bust this, acousto-optic warning unit output alarm.
The present invention in conjunction with following rainfall according to current soil humidity, by setting irrigation time, realizes field irrigation timely and appropriate discovery, has higher automation and intelligent level; Possess fault alarm function, be convenient to the supervision and management in farmland.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (5)
1. an intelligent farmland irrigating device, it is characterized in that, comprise the single-chip microcomputer being positioned at Control Room, the human-computer interaction interface be connected with single-chip microcomputer, for the acousto-optic warning unit of fault alarm, for data and the display unit of malfunction coefficient, the soil humidity sensor be distributed in farmland, the irrigation rig be communicated with water system and the radio magnet valve that opens and closes for control irrigation device; Described single-chip microcomputer is also connected with external data memory, weather monitoring system and irrigation timer, described external data memory is connected with ternary output latch;
Soil humidity information is transferred to the a/d converter be connected with single-chip microcomputer by described soil humidity sensor by wireless network, after soil humidity information is converted to data signal by a/d converter, transfer to single-chip microcomputer, external data memory, ternary output latch respectively; If soil moisture is lower than the minimum humidity value set by human-computer interaction interface, then single-chip microcomputer judges following rainfall further by weather monitoring system, by irrigating the timer control irrigation time, sending a control signal to radio magnet valve finally by wireless network, opening irrigation rig.
2. intelligent farmland irrigating device according to claim 1, it is characterized in that, described audible-visual annunciator comprises loudspeaker and light emitting diode D1, one end of loudspeaker is connected with the corresponding pin of single-chip microcomputer, the other end is connected with power supply VCC, is connected after power supply VCC series limiting resistor R2, light emitting diode D1 with single-chip microcomputer.
3. intelligent farmland irrigating device according to claim 1, is characterized in that, described single-chip microcomputer by expansion interface with for driving the drive circuit of display unit to be connected.
4. intelligent farmland irrigating device according to claim 1, is characterized in that, described a/d converter selects ADC0809 chip, and the CLOCK pin of ADC0809 chip connects 74HC74 chip, as the clock circuit of ADC0809 chip.
5. a control method for intelligent farmland irrigating device, is characterized in that, comprises the steps:
step one: initialize:minimum humidity value, most high humidity angle value, the time of fire alarming of acousto-optic warning unit and the weather monitoring cycle of weather monitoring system is set by human-computer interaction interface;
step 2: data acquisition:soil humidity sensor gathers the soil moisture in farmland, by wireless network transmissions to the a/d converter be connected with single-chip microcomputer, soil humidity information is converted to digital data transmission and carries out Analysis of Policy Making to single-chip microcomputer by a/d converter, transfer to external data memory and ternary output latch simultaneously, latch for current data;
step 3: Analysis of Policy Making and execution:single-chip microcomputer by the data signal of soil moisture compared with the minimum humidity value of setting, if be less than minimum humidity value, then single-chip microcomputer transfers following rainfall from weather monitoring system further, by irrigating timer sets irrigation time, send a control signal to radio magnet valve finally by wireless network, open irrigation rig; Display unit shows farmland current soil humidity value in real time;
step 4: fault alarm:if irrigation time arrives, soil moisture is still less than minimum humidity value, or network signal bust this or soil moisture exceed most high humidity angle value, single-chip microcomputer by acousto-optic warning unit output alarm, and by display unit output display fault message.
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Cited By (9)
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|---|---|---|---|---|
| CN106106059A (en) * | 2016-06-21 | 2016-11-16 | 常州工学院 | A kind of intelligent irrigation control system |
| CN106359006A (en) * | 2016-08-30 | 2017-02-01 | 武汉泰同宇科技有限公司 | Automatic irrigation device capable of judging humidity by diurnal temperature difference method |
| CN106489675A (en) * | 2016-10-30 | 2017-03-15 | 苏州市克拉思科文化传播有限公司 | A kind of intelligent city's Greenland Irrigation system |
| CN106718700A (en) * | 2017-03-13 | 2017-05-31 | 渭南师范学院 | Multiple spot based on 51 single-chip microcomputers irrigates flower-watering system |
| CN107389130A (en) * | 2017-07-17 | 2017-11-24 | 西南交通大学 | Intelligent irrigation inspection car and irrigation method |
| CN107896929A (en) * | 2017-11-16 | 2018-04-13 | 桂林市安琪玫瑰农业发展有限公司 | A kind of water-saving irrigation method |
| CN109792941A (en) * | 2017-11-16 | 2019-05-24 | 长沙闽壹湖电子科技有限责任公司 | A kind of CAN bus based intelligent farm irrigation system |
| CN112352658A (en) * | 2020-11-10 | 2021-02-12 | 广州大学 | Intelligent irrigation control system capable of working synchronously |
| CN113406157A (en) * | 2021-06-02 | 2021-09-17 | 内蒙古农业大学 | Portable farmland drip irrigation leakage stoppage inspection system, method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106106059A (en) * | 2016-06-21 | 2016-11-16 | 常州工学院 | A kind of intelligent irrigation control system |
| CN106359006A (en) * | 2016-08-30 | 2017-02-01 | 武汉泰同宇科技有限公司 | Automatic irrigation device capable of judging humidity by diurnal temperature difference method |
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| CN112352658A (en) * | 2020-11-10 | 2021-02-12 | 广州大学 | Intelligent irrigation control system capable of working synchronously |
| CN113406157A (en) * | 2021-06-02 | 2021-09-17 | 内蒙古农业大学 | Portable farmland drip irrigation leakage stoppage inspection system, method and device |
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