CN104969708A - Variable irrigating fertilizing device, and control method thereof - Google Patents
Variable irrigating fertilizing device, and control method thereof Download PDFInfo
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- CN104969708A CN104969708A CN201510376413.4A CN201510376413A CN104969708A CN 104969708 A CN104969708 A CN 104969708A CN 201510376413 A CN201510376413 A CN 201510376413A CN 104969708 A CN104969708 A CN 104969708A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000012452 mother liquor Substances 0.000 claims abstract description 325
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 88
- 239000003337 fertilizer Substances 0.000 claims abstract description 47
- 238000003973 irrigation Methods 0.000 claims abstract description 30
- 230000002262 irrigation Effects 0.000 claims abstract description 29
- 238000010926 purge Methods 0.000 claims description 29
- 238000005406 washing Methods 0.000 claims description 24
- 235000015097 nutrients Nutrition 0.000 claims description 14
- 230000003993 interaction Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 238000009835 boiling Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 6
- 230000001186 cumulative effect Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000004720 fertilization Effects 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 239000003621 irrigation water Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000002420 orchard Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The invention relates to a variable irrigating fertilizing device, and a control method thereof, and belongs to the technical field of irrigation fertilization. The variable irrigating fertilizing device comprises a water flow solenoid valve, a flow transmitter, a mixing buffer tank, three mother liquor tanks, three mother liquor solenoid valves, a cleaning solenoid valve, and a controller; a water inlet of the mixing buffer tank is connected with an outlet end of the flow transmitter; an inlet end of the flow transmitter is connected with an outlet end of the water flow solenoid valve; an inlet end of the water flow solenoid valve is connected with a water source main pipe; a water outlet of the mixing buffer tank is connected with an inlet of a micro-irrigation pipe network; a cleaning outlet of the mixing buffer tank is connected with an inlet end of the cleaning solenoid valve; and the water flow solenoid valve, the flow transmitter, the three mother liquor solenoid valves, and the cleaning solenoid valve are connected with the controller respectively. The variable irrigating fertilizing device is simple in structure, and is capable of realizing automatic controlling of simultaneous irrigation and fertilize of a plurality of fertilizer solutions; fertilizing concentration and fertilizing amount are not influenced by inlet water flow; no external powder is need for water-fertilizer mixing; and energy consumption is low.
Description
Technical field
The present invention relates to a kind of variable irrigation fertilizer apparatus and control method thereof, belong to fertigation technical field.
Background technology
Irrigation system has the important function become increasingly conspicuous in development industrialized agriculture, water-saving agriculture and the ecological agriculture etc., and fertigation, as the main contents of irrigation system, is the important technical realizing high crop yield, efficient and high-quality.
At present, conventional both at home and abroad fertigation mode has machinery pouring-in, hydro powered proportion expression fertilizing pump, pressure differential tank and Development of Venturi Fertilizer Applicator etc.Machinery is pouring-in has the uniform advantage of input fertilizer solution concentration, but needs pump and power set, and equipment investment and energy consumption are comparatively large, and need carry out management and utilization to it; Hydro powered proportion expression fertilizing pump utilizes the water body entering pump to form pressure reduction head as power, solution is injected irrigation conduit by driven plunger or barrier film, fertilising precision is high, working stability, but its Application Ratio only depends on pipeline pressure and flow, be difficult to control fertilising concentration by fertilizing pump itself, and its cost is very high; The structure of pressure differential tank is simple, cost is low, but there is the pre-large post-small shortcoming of fertilising concentration, namely in fertigation process, constantly enters in liquid fertilizer basin and fertilizer concentration in tank is reduced gradually, thus have a strong impact on fertilization effect along with irrigation water; Development of Venturi Fertilizer Applicator because structure is simple, cost is low, easy to use and do not need the advantages such as external impetus and be widely used, its shortcoming is fertilizer-sucting quantity main acceptor's tube inlet water currents, and fertilizer applicator itself can not active adjustment fertilising concentration.And, above-mentioned fertigation mode is except machinery is pouring-in, be difficult to realize automatic control, and can only apply fertilizer in real time to single fertilizer solution or nutrient solution, to use multiple solution or nutrient solution, timesharing can only carry out or in advance by manually by multiple fertilizer solution or nutrient solution mixing, waste time and energy, easily cause the waste of premix solution.
In sum, the weak point in current fertigation field is that cost performance is not high-leveled and difficult to apply or inconvenient automatic ration regulated fertilization concentration.
Summary of the invention
The technical problem to be solved in the present invention is: the invention provides a kind of low cost, low-power consumption, the variable irrigation fertilizer apparatus that can simultaneously apply fertilizer to multiple solution or nutrient solution and control method thereof, and the cost performance for solving current fertigation field is not high-leveled and difficult to apply or the problem of inconvenient automatic ration regulated fertilization concentration.
Technical solution of the present invention is: a kind of variable irrigation fertilizer apparatus, comprises current magnetic valve 1, flow transmitter 2, mixing baffle-box 3, mother liquor tank, mother liquor magnetic valve, solenoid purge valve 6 and controller 7; Described mixing baffle-box 3 is provided with water inlet 34, delivery port 35, first mother liquor entrance 31, second mother liquor entrance 32, the 3rd mother liquor entrance 33, washing outlet 36; Described mother liquor tank comprises the first mother liquor tank 41, second mother liquor tank 42 and the 3rd mother liquor tank 43; Described mother liquor magnetic valve comprises the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 and the 3rd mother liquor magnetic valve 53; Described controller 7 comprises single-chip microcomputer MSP430F2132, driving circuit for electromagnetic valve and man-machine interaction unit;
The water inlet 34 of described mixing baffle-box 3 is connected with the port of export of flow transmitter 2, the arrival end of flow transmitter 2 is connected with the port of export of described current magnetic valve 1, the arrival end of current magnetic valve 1 is connected with water source main pipe, and the delivery port 35 of mixing baffle-box 3 is connected with the entrance of micro-inertial devices; First mother liquor entrance 31, second mother liquor entrance 32 and the 3rd mother liquor entrance 33 are connected with the port of export of the 3rd mother liquor magnetic valve 53 with the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 respectively, first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 is connected with the outlet of the 3rd mother liquor tank 43 with the first mother liquor tank 41, second mother liquor tank 42 respectively with the arrival end of the 3rd mother liquor magnetic valve 53, and the washing outlet 36 of mixing baffle-box 3 is connected with the arrival end of solenoid purge valve 6;
Described current magnetic valve 1, first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 are connected with the output of described driving circuit for electromagnetic valve respectively with the control end of solenoid purge valve 6, the input of driving circuit for electromagnetic valve is connected with the I/O port of single-chip microcomputer MSP430F2132, and the output of described flow transmitter 2 is connected with the external interrupt port of single-chip microcomputer MSP430F2132.
Described mixing baffle-box 3 is the cylindrical shape of horizontal positioned, be made up of PVC material integrated molding, the length of mixing baffle-box 3 is 3 times of its cross-sectional diameter, water inlet 34 on it, delivery port 35, mother liquor entrance and washing outlet 36 are pipe interface, mother liquor entrance comprises the first mother liquor entrance 31, second mother liquor entrance 32, 3rd mother liquor entrance 33, the caliber of water inlet 34 and delivery port 35 is 1/3 of mixing baffle-box 3 cross-sectional diameter, the caliber of three mother liquor entrances is identical and be no more than 1/2 of water inlet 34 caliber, the caliber of washing outlet 36 is not more than the caliber of water inlet 34 and is not less than the caliber of mother liquor entrance, water inlet 34 and delivery port 35 are installed vertically on two bottom surfaces of mixing baffle-box 3 cylindrical structure respectively, and make the center of circle of water inlet 34 and delivery port 35 be all arranged in bottom surface perpendicular to horizontal direction diametrically and apart from 1/3 place on mixing baffle-box 3 top, three mother liquor entrances are equidistantly located at directly over mixing baffle-box 3, and make the first mother liquor entrance 31 be positioned at apart from mixing 5cm place, baffle-box 3 entrance bottom surface, and the position of the 3rd mother liquor entrance 33 on mixing baffle-box 3 is no more than 2/3 of mixing baffle-box 3 total length, such structural design, flows out through delivery port 35 after water and fertilizer mother liquor or nutrient solution can be made fully to mix in mixing baffle-box 3 again.Washing outlet 36 to be located at immediately below mixing baffle-box 3 and near delivery port 35, for draining remaining solution in mixing baffle-box 3 or cleaning fluid.
Described flow transmitter 2 for operating voltage be DC12V, output signal is the electromagnetic flow transmitter of 0 ~ 1kHz.Without stifled stream unit, to entrance current almost without the pressure loss, the output of electromagnetic flow transmitter is connected with the external interrupt INT0 port of single-chip microcomputer MSP430F2132, utilize the detection of the external counting functional realiey electromagnetic flow transmitter output frequency of single-chip microcomputer, be then scaled the flow of entrance current according to the output frequency of electromagnetic flow transmitter and the relation of flow.The connection of single-chip microcomputer and electromagnetic flow transmitter and routine techniques is to the detection of frequency.
Described current magnetic valve 1, first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 and solenoid purge valve 6 are impulse electromagnetic valve, the ON/OFF action of its valve only needs forwards/reverse can be completed by the DC pulse voltage that a width is about 30ms, amplitude is 3 ~ 9V, and the open/close state of valve maintains without the need to electric energy, belongs to low energy-consumption electronic device; The size of each valve should adapt with the caliber of its interface, and wherein the specification of the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 is identical.
Described first mother liquor tank 41, second mother liquor tank 42 is identical with the specification of the 3rd mother liquor tank 43, be made up of transparent organic glass material integrated molding, comprise upper and lower two large divisions, upper part is cylindrical shape, and be provided with a diameter in this cylinder upper bottom surface center be that the circle of upper bottom surface diameter 1/3 is uncovered, for adding fertilizer mother liquor or nutrient solution mother liquor in mother liquor tank, lower part is funnel-form, is easy to the fertilizer mother liquor in mother liquor tank or the outflow of nutrient solution mother liquor, first mother liquor tank 41, the fertilizer mother liquor of the second mother liquor tank 42 and the 3rd mother liquor tank 43 difference splendid attire heterogeneity or nutrient solution mother liquor, and stand vertically the first mother liquor entrance 31 being installed on mixing baffle-box 3 respectively, on second mother liquor entrance 32 and the 3rd mother liquor entrance 33, three mother liquor tank (the first mother liquor tanks 41, second mother liquor tank 42 and the 3rd mother liquor tank 43) respectively by three mother liquor magnetic valves (the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 and the 3rd mother liquor magnetic valve 53) and three mother liquor entrance (the first mother liquor entrances 31, second mother liquor entrance 32 and the 3rd mother liquor entrance 33) be connected, outflow mother liquor in each mother liquor tank can be controlled separately like this, when corresponding mother liquor magnetic valve is opened, mother liquor in mother liquor tank flows out under gravity voluntarily, because mother liquid flow rate is relatively little, each moment of mother liquor flow under gravity can approximately equal, thus mother liquor stream output can be controlled according to the opening time of mother liquor magnetic valve.Under different mother liquor entrance caliber, mother liquor flow under gravity draws by test.
Further, according to the practical situations of fertigation, mixing baffle-box 3 can set up mother liquor entrance, correspondingly sets up mother liquor tank and mother liquor magnetic valve simultaneously.
Further, described man-machine interaction unit is made up of segment liquid crystal display module HT1621 and 4 button, be mainly used in setting fertilising concentration, fertilizing amount and control mode etc., and show the information such as current fertilising concentration, current fertilizing amount and fertilising state.The connection of described single-chip microcomputer and LCD MODULE HT1621 and 4 button, and to display and the process of button, be routine techniques, visible " design of venturi variable fertilizer applicator and test based on PWM " literary composition, does not describe in detail at this.
Further, described driving circuit for electromagnetic valve comprises 5 identical H-bridge circuit be made up of metal-oxide-semiconductor, and each H-bridge circuit is for controlling a magnetic valve.The brachium pontis of H-bridge circuit is connected with the I/O port of single-chip microcomputer respectively, by conducting and the cut-off of the I/O port controlling metal-oxide-semiconductor of single-chip microcomputer, thus realizes the control of electromagnetic valve switch action.The composition of H-bridge circuit, the connection of H-bridge circuit and single-chip microcomputer, magnetic valve, and single-chip microcomputer is to the control of H-bridge circuit, is routine techniques, visible patent ZL 201110191987.6 " Water-fertilizer integrated drop irrigation automatic control device used in orchard and control method thereof ", does not describe in detail at this.
A kind of variable irrigation fertilizer apparatus control method, the concrete steps of described method are as follows:
1) by the fertigation information such as man-machine interaction unit setting Fertilizer Type, fertilising concentration, fertilizing amount and control mode of controller 7;
2) if when control mode is for pouring water, then only to be fetched boiling water manifold solenoid valve 1 by controller 7, and enable flow transmitter 2 and detect an inlet water flow each second, then in water-pouring process, discharge is added up to calculate irrigation quantity, then close current magnetic valve 1 by controller 7 when irrigation quantity reaches setting value and forbid flow transmitter 2, stopping pouring water;
3) if when control mode is fertigation, first to be fetched boiling water manifold solenoid valve 1 by controller 7, and enable flow transmitter 2 and detect inlet water flow in real time, then calculate the water yield once flowing into mixing baffle-box 3 every 5 seconds according to flow detection information;
4) according to Fertilizer Type and the fertilising concentration of setting, flow into based on the water yield of mixing baffle-box 3 by every 5 seconds, calculate the fertilizer mother liquor in the first mother liquor tank 41, second mother liquor tank 42 and the 3rd mother liquor tank 43 or nutrient solution mother liquor stream output, then according to testing the mother liquor flow under gravity drawn, control whether opening and opening time of the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 and the 3rd mother liquor magnetic valve 53 respectively, make corresponding mother liquor flow into mixing baffle-box 3 and mix with water;
5) in fertigation process, the mother liquor stream output in every 5 seconds is carried out cumulative to obtain fertilizing amount, and compare with the fertilizing amount of setting, when fertilizing amount reaches setting value, then close the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 and current magnetic valve 1 by controller 7, stop fertigation;
6) solenoid purge valve 6 is opened by controller 7, remaining solution in mixing baffle-box 3 is discharged from washing outlet 36, close solenoid purge valve 6 after 2 minutes and make current magnetic valve 1 open 30 seconds, make current enter mixing baffle-box 3 to rinse it, and then solenoid purge valve 6 is opened closedown after 2 minutes.
The invention has the beneficial effects as follows: this apparatus structure is simple, the fixing quantity of irrigation water can be realized, the fertilizer mother liquor of multiple heterogeneity or nutrient solution mother liquor can be mixed with water again simultaneously and carry out fertigation and automatically control, and fertilising concentration and fertilizing amount are by the impact of entrance current, can automatically adjust mother liquor stream output according to the change of inlet water flow; The energy consumption of device is very little, and water mixes without the need to external impetus with mother liquor, only have controller 7 and to outside connect flow transmitter 2 and a little electric energy of impulse electromagnetic valve consumption; Separate fertilizer mother liquor or the nutrient solution mother liquor of splendid attire heterogeneity with multiple mother liquor tank, be convenient to water and can mix according to quantity as required in real time with mother liquor.
Accompanying drawing explanation
Fig. 1 is the structural representation of fertigation device of the present invention.
Each label in Fig. 1: 1-current magnetic valve, 2-flow transmitter, 3-mixing baffle-box, 31-first mother liquor entrance, 32-second mother liquor entrance, 33-the 3rd mother liquor entrance, 34-water inlet, 35-delivery port, 36-washing outlet, 41-first mother liquor tank, 42-second mother liquor tank, 43-the 3rd mother liquor tank, 51-first mother liquor magnetic valve, 52-second mother liquor magnetic valve, 53-the 3rd mother liquor magnetic valve, 6-solenoid purge valve, 7-controller.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1: as shown in Figure 1, a kind of variable irrigation fertilizer apparatus, comprises current magnetic valve 1, flow transmitter 2, mixing baffle-box 3, mother liquor tank, mother liquor magnetic valve, solenoid purge valve 6 and controller 7; Described mixing baffle-box 3 is provided with water inlet 34, delivery port 35, first mother liquor entrance 31, second mother liquor entrance 32, the 3rd mother liquor entrance 33, washing outlet 36; Described mother liquor tank comprises the first mother liquor tank 41, second mother liquor tank 42 and the 3rd mother liquor tank 43; Described mother liquor magnetic valve comprises the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 and the 3rd mother liquor magnetic valve 53; Described controller 7 comprises single-chip microcomputer MSP430F2132, driving circuit for electromagnetic valve and man-machine interaction unit;
The water inlet 34 of described mixing baffle-box 3 is connected with the port of export of flow transmitter 2, the arrival end of flow transmitter 2 is connected with the port of export of described current magnetic valve 1, the arrival end of current magnetic valve 1 is connected with water source main pipe, and the delivery port 35 of mixing baffle-box 3 is connected with the entrance of micro-inertial devices; First mother liquor entrance 31, second mother liquor entrance 32 and the 3rd mother liquor entrance 33 are connected with the port of export of the 3rd mother liquor magnetic valve 53 with the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 respectively, first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 is connected with the outlet of the 3rd mother liquor tank 43 with the first mother liquor tank 41, second mother liquor tank 42 respectively with the arrival end of the 3rd mother liquor magnetic valve 53, and the washing outlet 36 of mixing baffle-box 3 is connected with the arrival end of solenoid purge valve 6;
Described current magnetic valve 1, first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 are connected with the output of described driving circuit for electromagnetic valve respectively with the control end of solenoid purge valve 6, the input of driving circuit for electromagnetic valve is connected with the I/O port of single-chip microcomputer MSP430F2132, and the output of described flow transmitter 2 is connected with the external interrupt port of single-chip microcomputer MSP430F2132.
Described mixing baffle-box 3 is the cylindrical shape of horizontal positioned, be made up of PVC material integrated molding, the length of mixing baffle-box 3 is 3 times of its cross-sectional diameter, water inlet 34 on it, delivery port 35, mother liquor entrance and washing outlet 36 are pipe interface, mother liquor entrance comprises the first mother liquor entrance 31, second mother liquor entrance 32, 3rd mother liquor entrance 33, the caliber of water inlet 34 and delivery port 35 is 1/3 of mixing baffle-box 3 cross-sectional diameter, the caliber of three mother liquor entrances is identical and be no more than 1/2 of water inlet 34 caliber, the caliber of washing outlet 36 is not more than the caliber of water inlet 34 and is not less than the caliber of mother liquor entrance, water inlet 34 and delivery port 35 are installed vertically on two bottom surfaces of mixing baffle-box 3 cylindrical structure respectively, and make the center of circle of water inlet 34 and delivery port 35 be all arranged in bottom surface perpendicular to horizontal direction diametrically and apart from 1/3 place on mixing baffle-box 3 top, three mother liquor entrances are equidistantly located at directly over mixing baffle-box 3, and make the first mother liquor entrance 31 be positioned at apart from mixing 5cm place, baffle-box 3 entrance bottom surface, and the position of the 3rd mother liquor entrance 33 on mixing baffle-box 3 is no more than 2/3 of mixing baffle-box 3 total length, washing outlet 36 to be located at immediately below mixing baffle-box 3 and near delivery port 35.
Described flow transmitter 2 is electromagnetic flow transmitter, and its operating voltage is DC12V, and output signal is 0 ~ 1kHz, and the output of electromagnetic flow transmitter is connected with the external interrupt INT0 port of single-chip microcomputer MSP430F2132.
Described current magnetic valve 1, first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 and solenoid purge valve 6 are impulse electromagnetic valve, the caliber of the size of each valve and its interface adapts, and the specification of the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 is identical.
Described first mother liquor tank 41, second mother liquor tank 42 is identical with the specification of the 3rd mother liquor tank 43, be made up of transparent organic glass material integrated molding, comprise upper and lower two large divisions, upper part is cylindrical shape, and be provided with a diameter in this cylinder upper bottom surface center be that the circle of upper bottom surface diameter 1/3 is uncovered, lower part is funnel-form; First mother liquor tank 41, second mother liquor tank 42 and the 3rd mother liquor tank 43, stand vertically respectively and be installed on mixing the first mother liquor entrance 31, second mother liquor entrance 32 of baffle-box 3 and the 3rd mother liquor entrance 33.
A kind of variable irrigation fertilizer apparatus control method, the concrete steps of described method are as follows:
1) by the fertigation information such as man-machine interaction unit setting Fertilizer Type, fertilising concentration, fertilizing amount and control mode of controller 7;
2) if when control mode is for pouring water, then only to be fetched boiling water manifold solenoid valve 1 by controller 7, and enable flow transmitter 2 and detect an inlet water flow each second, then in water-pouring process, discharge is added up to calculate irrigation quantity, then close current magnetic valve 1 by controller 7 when irrigation quantity reaches setting value and forbid flow transmitter 2, stopping pouring water;
3) if when control mode is fertigation, first to be fetched boiling water manifold solenoid valve 1 by controller 7, and enable flow transmitter 2 and detect inlet water flow in real time, then calculate the water yield once flowing into mixing baffle-box 3 every 5 seconds according to flow detection information;
4) according to Fertilizer Type and the fertilising concentration of setting, flow into based on the water yield of mixing baffle-box 3 by every 5 seconds, calculate the fertilizer mother liquor in the first mother liquor tank 41, second mother liquor tank 42 and the 3rd mother liquor tank 43 or nutrient solution mother liquor stream output, then according to testing the mother liquor flow under gravity drawn, control whether opening and opening time of the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 and the 3rd mother liquor magnetic valve 53 respectively, make corresponding mother liquor flow into mixing baffle-box 3 and mix with water;
5) in fertigation process, the mother liquor stream output in every 5 seconds is carried out cumulative to obtain fertilizing amount, and compare with the fertilizing amount of setting, when fertilizing amount reaches setting value, then close the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 and current magnetic valve 1 by controller 7, stop fertigation;
6) solenoid purge valve 6 is opened by controller 7, remaining solution in mixing baffle-box 3 is discharged from washing outlet 36, close solenoid purge valve 6 after 2 minutes and make current magnetic valve 1 open 30 seconds, make current enter mixing baffle-box 3 to rinse it, and then solenoid purge valve 6 is opened closedown after 2 minutes.
Embodiment 2: as shown in Figure 1, a kind of variable irrigation fertilizer apparatus, comprises current magnetic valve 1, flow transmitter 2, mixing baffle-box 3, mother liquor tank, mother liquor magnetic valve, solenoid purge valve 6 and controller 7; Described mixing baffle-box 3 is provided with water inlet 34, delivery port 35, first mother liquor entrance 31, second mother liquor entrance 32, the 3rd mother liquor entrance 33, washing outlet 36; Described mother liquor tank comprises the first mother liquor tank 41, second mother liquor tank 42 and the 3rd mother liquor tank 43; Described mother liquor magnetic valve comprises the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 and the 3rd mother liquor magnetic valve 53; Described controller 7 comprises single-chip microcomputer MSP430F2132, driving circuit for electromagnetic valve and man-machine interaction unit;
The water inlet 34 of described mixing baffle-box 3 is connected with the port of export of flow transmitter 2, the arrival end of flow transmitter 2 is connected with the port of export of described current magnetic valve 1, the arrival end of current magnetic valve 1 is connected with water source main pipe, and the delivery port 35 of mixing baffle-box 3 is connected with the entrance of micro-inertial devices; First mother liquor entrance 31, second mother liquor entrance 32 and the 3rd mother liquor entrance 33 are connected with the port of export of the 3rd mother liquor magnetic valve 53 with the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 respectively, first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 is connected with the outlet of the 3rd mother liquor tank 43 with the first mother liquor tank 41, second mother liquor tank 42 respectively with the arrival end of the 3rd mother liquor magnetic valve 53, and the washing outlet 36 of mixing baffle-box 3 is connected with the arrival end of solenoid purge valve 6;
Described current magnetic valve 1, first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 are connected with the output of described driving circuit for electromagnetic valve respectively with the control end of solenoid purge valve 6, the input of driving circuit for electromagnetic valve is connected with the I/O port of single-chip microcomputer MSP430F2132, and the output of described flow transmitter 2 is connected with the external interrupt port of single-chip microcomputer MSP430F2132.
Described mixing baffle-box 3 is the cylindrical shape of horizontal positioned, be made up of PVC material integrated molding, the length of mixing baffle-box 3 is 3 times of its cross-sectional diameter, water inlet 34 on it, delivery port 35, mother liquor entrance and washing outlet 36 are pipe interface, mother liquor entrance comprises the first mother liquor entrance 31, second mother liquor entrance 32, 3rd mother liquor entrance 33, the caliber of water inlet 34 and delivery port 35 is 1/3 of mixing baffle-box 3 cross-sectional diameter, the caliber of three mother liquor entrances is identical and be no more than 1/2 of water inlet 34 caliber, the caliber of washing outlet 36 is not more than the caliber of water inlet 34 and is not less than the caliber of mother liquor entrance, water inlet 34 and delivery port 35 are installed vertically on two bottom surfaces of mixing baffle-box 3 cylindrical structure respectively, and make the center of circle of water inlet 34 and delivery port 35 be all arranged in bottom surface perpendicular to horizontal direction diametrically and apart from 1/3 place on mixing baffle-box 3 top, three mother liquor entrances are equidistantly located at directly over mixing baffle-box 3, and make the first mother liquor entrance 31 be positioned at apart from mixing 5cm place, baffle-box 3 entrance bottom surface, and the position of the 3rd mother liquor entrance 33 on mixing baffle-box 3 is no more than 2/3 of mixing baffle-box 3 total length, washing outlet 36 to be located at immediately below mixing baffle-box 3 and near delivery port 35.
Described flow transmitter 2 is electromagnetic flow transmitter, and its operating voltage is DC12V, and output signal is 0 ~ 1kHz, and the output of electromagnetic flow transmitter is connected with the external interrupt INT0 port of single-chip microcomputer MSP430F2132.
Described current magnetic valve 1, first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 and solenoid purge valve 6 are impulse electromagnetic valve, the caliber of the size of each valve and its interface adapts, and the specification of the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 is identical.
Described first mother liquor tank 41, second mother liquor tank 42 is identical with the specification of the 3rd mother liquor tank 43, be made up of transparent organic glass material integrated molding, comprise upper and lower two large divisions, upper part is cylindrical shape, and be provided with a diameter in this cylinder upper bottom surface center be that the circle of upper bottom surface diameter 1/3 is uncovered, lower part is funnel-form; First mother liquor tank 41, second mother liquor tank 42 and the 3rd mother liquor tank 43, stand vertically respectively and be installed on mixing the first mother liquor entrance 31, second mother liquor entrance 32 of baffle-box 3 and the 3rd mother liquor entrance 33.
Further, according to the practical situations of fertigation, mixing baffle-box 3 can set up mother liquor entrance, correspondingly sets up mother liquor tank and mother liquor magnetic valve simultaneously.
Further, described man-machine interaction unit is made up of segment liquid crystal display module HT1621 and 4 button.
Further, described driving circuit for electromagnetic valve comprises 5 identical H-bridge circuit be made up of metal-oxide-semiconductor, and the brachium pontis of H-bridge circuit is connected with the I/O port of single-chip microcomputer respectively.
A kind of variable irrigation fertilizer apparatus control method, the concrete steps of described method are as follows:
1) by the fertigation information such as man-machine interaction unit setting Fertilizer Type, fertilising concentration, fertilizing amount and control mode of controller 7;
2) if when control mode is for pouring water, then only to be fetched boiling water manifold solenoid valve 1 by controller 7, and enable flow transmitter 2 and detect an inlet water flow each second, then in water-pouring process, discharge is added up to calculate irrigation quantity, then close current magnetic valve 1 by controller 7 when irrigation quantity reaches setting value and forbid flow transmitter 2, stopping pouring water;
3) if when control mode is fertigation, first to be fetched boiling water manifold solenoid valve 1 by controller 7, and enable flow transmitter 2 and detect inlet water flow in real time, then calculate the water yield once flowing into mixing baffle-box 3 every 5 seconds according to flow detection information;
4) according to Fertilizer Type and the fertilising concentration of setting, flow into based on the water yield of mixing baffle-box 3 by every 5 seconds, calculate the fertilizer mother liquor in the first mother liquor tank 41, second mother liquor tank 42 and the 3rd mother liquor tank 43 or nutrient solution mother liquor stream output, then according to testing the mother liquor flow under gravity drawn, control whether opening and opening time of the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52 and the 3rd mother liquor magnetic valve 53 respectively, make corresponding mother liquor flow into mixing baffle-box 3 and mix with water;
5) in fertigation process, the mother liquor stream output in every 5 seconds is carried out cumulative to obtain fertilizing amount, and compare with the fertilizing amount of setting, when fertilizing amount reaches setting value, then close the first mother liquor magnetic valve 51, second mother liquor magnetic valve 52, the 3rd mother liquor magnetic valve 53 and current magnetic valve 1 by controller 7, stop fertigation;
6) solenoid purge valve 6 is opened by controller 7, remaining solution in mixing baffle-box 3 is discharged from washing outlet 36, close solenoid purge valve 6 after 2 minutes and make current magnetic valve 1 open 30 seconds, make current enter mixing baffle-box 3 to rinse it, and then solenoid purge valve 6 is opened closedown after 2 minutes.
By reference to the accompanying drawings specific embodiments of the invention are explained in detail above, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.
Claims (6)
1. a variable irrigation fertilizer apparatus, is characterized in that: comprise current magnetic valve (1), flow transmitter (2), mixing baffle-box (3), mother liquor tank, mother liquor magnetic valve, solenoid purge valve (6) and controller (7); Described mixing baffle-box (3) is provided with water inlet (34), delivery port (35), the first mother liquor entrance (31), the second mother liquor entrance (32), the 3rd mother liquor entrance (33), washing outlet (36); Described mother liquor tank comprises the first mother liquor tank (41), the second mother liquor tank (42) and the 3rd mother liquor tank (43); Described mother liquor magnetic valve comprises the first mother liquor magnetic valve (51), the second mother liquor magnetic valve (52) and the 3rd mother liquor magnetic valve (53); Described controller (7) comprises single-chip microcomputer MSP430F2132, driving circuit for electromagnetic valve and man-machine interaction unit;
The water inlet (34) of described mixing baffle-box (3) is connected with the port of export of flow transmitter (2), the arrival end of flow transmitter (2) is connected with the port of export of described current magnetic valve (1), the arrival end of current magnetic valve (1) is connected with water source main pipe, and the delivery port (35) of mixing baffle-box (3) is connected with the entrance of micro-inertial devices; First mother liquor entrance (31), the second mother liquor entrance (32) and the 3rd mother liquor entrance (33) are connected with the port of export of the 3rd mother liquor magnetic valve (53) with the first mother liquor magnetic valve (51), the second mother liquor magnetic valve (52) respectively, first mother liquor magnetic valve (51), the second mother liquor magnetic valve (52) are connected with the outlet of the 3rd mother liquor tank (43) with the first mother liquor tank (41), the second mother liquor tank (42) respectively with the arrival end of the 3rd mother liquor magnetic valve (53), and the washing outlet (36) of mixing baffle-box (3) is connected with the arrival end of solenoid purge valve (6);
Described current magnetic valve (1), the first mother liquor magnetic valve (51), the second mother liquor magnetic valve (52), the 3rd mother liquor magnetic valve (53) are connected with the output of described driving circuit for electromagnetic valve respectively with the control end of solenoid purge valve (6), the input of driving circuit for electromagnetic valve is connected with the I/O port of single-chip microcomputer MSP430F2132, and the output of described flow transmitter (2) is connected with the external interrupt port of single-chip microcomputer MSP430F2132.
2. variable irrigation fertilizer apparatus according to claim 1, it is characterized in that: the cylindrical shape that described mixing baffle-box (3) is horizontal positioned, be made up of PVC material integrated molding, the length of mixing baffle-box (3) is 3 times of its cross-sectional diameter, water inlet (34) on it, delivery port (35), mother liquor entrance and washing outlet (36) are pipe interface, mother liquor entrance comprises the first mother liquor entrance (31), second mother liquor entrance (32), 3rd mother liquor entrance (33), the caliber of water inlet (34) and delivery port (35) is 1/3 of mixing baffle-box (3) cross-sectional diameter, the caliber of three mother liquor entrances is identical and be no more than 1/2 of water inlet (34) caliber, the caliber of washing outlet (36) is not more than the caliber of water inlet (34) and is not less than the caliber of mother liquor entrance, water inlet (34) and delivery port (35) are installed vertically on two bottom surfaces of mixing baffle-box (3) cylindrical structure respectively, and make the center of circle of water inlet (34) and delivery port (35) be all arranged in bottom surface perpendicular to horizontal direction diametrically and apart from mixing 1/3 place on baffle-box (3) top, three mother liquor entrances are equidistantly located at directly over mixing baffle-box (3), and making the first mother liquor entrance (31) be positioned at apart from mixing 5cm place, baffle-box (3) entrance bottom surface, the position of the 3rd mother liquor entrance (33) in mixing baffle-box (3) is no more than 2/3 of mixing baffle-box (3) total length, washing outlet (36) to be located at immediately below mixing baffle-box (3) and near delivery port (35).
3. variable irrigation fertilizer apparatus according to claim 1, is characterized in that: described flow transmitter (2) for operating voltage be DC12V, output signal is the electromagnetic flow transmitter of 0 ~ 1kHz.
4. variable irrigation fertilizer apparatus according to claim 1, it is characterized in that: described current magnetic valve (1), the first mother liquor magnetic valve (51), the second mother liquor magnetic valve (52), the 3rd mother liquor magnetic valve (53) and solenoid purge valve (6) are impulse electromagnetic valve, the caliber of the size of each valve and its interface adapts, and the specification of the first mother liquor magnetic valve (51), the second mother liquor magnetic valve (52), the 3rd mother liquor magnetic valve (53) is identical.
5. variable irrigation fertilizer apparatus according to claim 1, it is characterized in that: described first mother liquor tank (41), the second mother liquor tank (42) are identical with the specification of the 3rd mother liquor tank (43), be made up of transparent organic glass material integrated molding, comprise upper and lower two large divisions, upper part is cylindrical shape, and be provided with a diameter in this cylinder upper bottom surface center be that the circle of upper bottom surface diameter 1/3 is uncovered, lower part is funnel-form; First mother liquor tank (41), the second mother liquor tank (42) and the 3rd mother liquor tank (43), stand vertically respectively be installed on mixing baffle-box (3) the first mother liquor entrance (31), on the second mother liquor entrance (32) and the 3rd mother liquor entrance (33).
6. a variable irrigation fertilizer apparatus control method, is characterized in that: the concrete steps of described method are as follows:
1) by the fertigation information such as man-machine interaction unit setting Fertilizer Type, fertilising concentration, fertilizing amount and control mode of controller (7);
2) if when control mode is for pouring water, then only to be fetched boiling water manifold solenoid valve (1) by controller (7), and enable flow transmitter (2) each second and detect an inlet water flow, then in water-pouring process, discharge is added up to calculate irrigation quantity, then close current magnetic valve (1) by controller (7) when irrigation quantity reaches setting value and forbid flow transmitter (2), stopping pouring water;
3) if when control mode is fertigation, first to be fetched boiling water manifold solenoid valve (1) by controller (7), and enable flow transmitter (2) detection inlet water flow in real time, then calculate the water yield once flowing into mixing baffle-box (3) every 5 seconds according to flow detection information;
4) according to Fertilizer Type and the fertilising concentration of setting, flow into based on the water yield of mixing baffle-box (3) by every 5 seconds, calculate the fertilizer mother liquor in the first mother liquor tank (41), the second mother liquor tank (42) and the 3rd mother liquor tank (43) or nutrient solution mother liquor stream output, then according to testing the mother liquor flow under gravity drawn, control whether opening and opening time of the first mother liquor magnetic valve (51), the second mother liquor magnetic valve (52) and the 3rd mother liquor magnetic valve (53) respectively, make corresponding mother liquor flow into mixing baffle-box (3) and mix with water;
5) in fertigation process, the mother liquor stream output in every 5 seconds is carried out cumulative to obtain fertilizing amount, and compare with the fertilizing amount of setting, when fertilizing amount reaches setting value, then close the first mother liquor magnetic valve (51), the second mother liquor magnetic valve (52), the 3rd mother liquor magnetic valve (53) and current magnetic valve (1) by controller (7), stop fertigation;
6) open solenoid purge valve (6) by controller (7), close solenoid purge valve (6) after 2 minutes and make current magnetic valve (1) open 30 seconds, and then solenoid purge valve (6) is opened closedown after 2 minutes.
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