CN105842398A - Analysis device and method for plant growth fertilizer consumption - Google Patents
Analysis device and method for plant growth fertilizer consumption Download PDFInfo
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- CN105842398A CN105842398A CN201610185326.5A CN201610185326A CN105842398A CN 105842398 A CN105842398 A CN 105842398A CN 201610185326 A CN201610185326 A CN 201610185326A CN 105842398 A CN105842398 A CN 105842398A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The invention relates to an analysis device and method of plant growth fertilizer consumption. The difference of each nutrient component before entering and after leaving a culture solution is calculated, and the difference value is divided by time interval to obtain an average value. The process is continuous, an average consumption value of each ion in the whole time domain is obtained, and subjected to filtering integration, so as to obtain composition and dose ratio of the needed nutrient elements. The invention can obtain the composition and ratio of the fertilizer needed by the plant in different growth stages without any harm to the plant, and the measurement and analysis result has high precision.
Description
Technical field
The present invention relates to industrialized agriculture field, particularly a kind of plant growth fertilizer Consumption Analysis device and method.
Background technology
Industrialized agriculture is the seasonal disadvantage producing and living at the mercy of the elements of a kind of agricultural that can break traditions, by key elements such as land assembly, fund, technology and labour forces, with intensive capital, the intensive high-efficiency agriculture industry that technology-intensive, soil is efficiently utilized as principal character.These basic features of industrialized agriculture so that it is have high investment, high production, high benefit, save water and energy, sustainable development, the distinguishing feature of whole year production.Along with China's scientific and technological progress and the continuous decline of of the right age labouring population quantity, industrialized agriculture will occupy increasingly consequence in the agricultural production following in China.
It is an important modern installations agricultural technology that water-fertilizer integral allotment is irrigated.By the priori of fertilizer components needed for the every growth period of plant that has in expert system knowledge base with proportioning, bestow plant after nutritional solution allotment is accurately regulated, needed for both ensure that plant nutrient, effectively reduce again the waste of fertilizer.But this accurate regulation needs accurately that priori is as foundation, and the acquisition of the relevant priori of these fertilizer the most not yet has suitable device.Needed for the most how designing a set of acquisition plant different growth phases, the content of fertilizer and the automation equipment of proportioning just become one and have practical value and challenging problem.
Existing for the patent application of fertilizer needed for plant, all fail to accomplish the Non-Destructive Testing to plant, the invention of such as application number 201410640183.3 uses employing Sulfuric-acid-hydrogen-peroxide after plucking blade post-drying to disappear and boils, leaf total nitrogen content is measured by kelvin semimicro nitriding, by vanadium molybdenum Huang colorimetric method for determining blade content of tatal phosphorus, measure the full potassium content of blade by flare photometer, and plant leaf need to be destroyed and cannot accomplish to detect in real time by these methods.And the invention of application number 201210041294.3 is by accurately measuring the soil aspect data in a certain plot, then according to the plant planted, imitate growing process by computer model and carry out the method for virtual fertilising and determine the usage amount of this fertilizer.This method is by Computer Simulation rather than true experiment obtains data, it is clear that have worse accuracy and specific aim.
Summary of the invention
In view of this, the purpose of the present invention is to propose to a kind of plant growth fertilizer Consumption Analysis device and method, by calculating culture solution difference of each nutrition composition before and after turnover growth storehouse, obtain meansigma methods divided by time interval.This process is constantly carried out, and each ion obtained finally consumes in whole time domain integration after meansigma methods is filtered, thus obtains dosage and the proportioning of each desired nutritional elemental constituent.
Assembly of the invention employing below scheme realization: one plant growth fertilizer Consumption Analysis device, including preparing storehouse, plantation storehouse, measurement storehouse, the first ion transducer array being arranged in preparation storehouse, the second ion transducer array being arranged in measurement storehouse, control module, battery valve actuator；Described battery valve actuator includes several battery valves；The pipeline being all provided by electromagnetic valve between described plantation storehouse with described preparation storehouse, measurement storehouse is connected；Described control module is electrical connected with described first ion transducer array, the second ion transducer array, battery valve actuator.
Further, described preparation storehouse, plantation storehouse, the putting position in measurement storehouse are from high in the end.
Further, described ion transducer array includes the online ion transducer of nitrogen, phosphorus, potassium, calcium, magnesium, ferrum.
Further, described control module includes that single-chip microcomputer, described single-chip microcomputer are connected to described computer by communication interface.Control module microcontroller part is made up of Renesas's R5F100FCA single-chip microcomputer, and its core circuit is as shown in Figure 4.This single-chip microcomputer built-in high-precision crystal agitator, A/D converter (A/D), pulse-width modulator (PWA), intervalometer etc., be fully able to meet system requirements.
The invention of the present invention uses below scheme to realize: a kind of method according to plant growth fertilizer Consumption Analysis device mentioned above, specifically includes following steps;
Step S1: concentrated nutrient solution is mixedly configured into water in preparing storehouse the nutritional solution of normal concentration；
Step S2: the nutritional solution of normal concentration step S1 configured injects plantation storehouse, through the plantation of a bit of time, makes the various nutrients in plant absorption nutritional solution；
Step S3: inject plant storehouse used nutritional solution measure storehouse carry out the measurement of each constituent content after the scheduled time arriving；
Step S4: by measure the data that record of storehouse and prepare storehouse normal concentration nutrient solution concentration data between difference can obtain the Expenditure Levels of each element of nutritional solution in this period of time；
Step S5: repeat step S1 to S4, obtain nutritional solution the element Expenditure Levels of multiple period, obtains plant nutrient Expenditure Levels in whole time domain by the result statistics of all periods, integration.
Further, after the nutritional solution planting storehouse described in planting enters described measurement storehouse, immediately the nutritional solution in described preparation storehouse is imported described plantation storehouse, then in described preparation storehouse, new nutritional solution is configured, so that being carved with solution soaking during plant in described plantation storehouse, and make the data measured can be continuous in time domain.
Further, in described step S3, the measurement data obtained is filtered smoothing processing by extended Kalman filter (Extended Kalman Filter, EFK).The basic thought of EKF is by nonlinear system linearisation, then carries out Kalman filtering (Kalman Filtering, KF).Kalman filtering is that one utilizes linear system state equation, observes data by system input and output, system mode carries out the algorithm of optimal estimation.Owing to observation data include the impact of the noise in system and interference, so optimal estimation is also considered as filtering.This process can predicted and two stages of renewal.At forecast period, wave filter uses the estimation of laststate, makes the estimation to current state.In the more new stage, wave filter utilizes the predictive value that the observation optimization to current state obtains at forecast period, to obtain a more accurate new estimation value.Fig. 5 show the flow chart of EKF.Can significantly cut down the error in measured fertilizer parameter by being extended Kalman filtering, make result more approaching to reality value.
Further, the allotment of described preparation storehouse Middle nutrition liquid by being diluted allotment by the method that prewired for high concentration various nutritional solutions mix clear water in proportion, wherein the flow of high concentration nutritional liquid entrance warehouse can be realized by the aperture of regulating cell valve, and the aperture of battery valve regulates realization by the PWM controller that the single-chip microcomputer in control module is built-in.
Further, in described step S1 to the measurement of constituent content each in nutritional solution by described first ion transducer array.
Further, in described step S3 to the measurement of each constituent content in the solution measuring storehouse by the second ion transducer array.
Compared with prior art, the present invention has a following beneficial effect: the present invention can obtain content and the proportioning of fertilizer needed for plant different growth phases, does not causes any harm plant itself simultaneously, i.e. can accomplish the Non-Destructive Testing to plant.The measurement analysis result of the present invention has the highest accuracy.
Accompanying drawing explanation
Fig. 1 is the overall framework figure of the present invention.
Fig. 2 is one-shot measurement schematic flow sheet of the present invention.
Fig. 3 is apparatus of the present invention structural representations.
Fig. 4 is control module micro controller core circuit diagram of the present invention.
Fig. 5 EKF of the present invention schematic flow sheet.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the present invention will be further described.
As shown in Figure 1, present embodiments provide one plant growth fertilizer Consumption Analysis device, including preparing storehouse, plantation storehouse, measuring storehouse, the first ion transducer array being arranged in preparation storehouse, the second ion transducer array being arranged in measurement storehouse, control module, battery valve actuator；Described battery valve actuator includes several battery valves；The pipeline being all provided by electromagnetic valve between described plantation storehouse with described preparation storehouse, measurement storehouse is connected；Described control module is electrical connected with described first ion transducer array, the second ion transducer array, battery valve actuator.
As it is shown on figure 3, in the present embodiment, described preparation storehouse, plantation storehouse, the putting position in measurement storehouse are from high in the end.When control module opens the battery valve of corresponding pipeline, solution can flow into next pipeline according to potential energy.Nutritional solution is implanted sequentially preparation storehouse, plantation storehouse by flow process and measures storehouse；But this flow process is to carry out in the way of assembly line work, i.e. after plantation storehouse solution enters and measures storehouse, storehouse solution will be prepared immediately and import plantation storehouse, then new solution is configured in preparing storehouse, so that plantation storehouse is carved with during plant solution soaking, and make measure data can be continuous in time domain.
In the present embodiment, described ion transducer array includes the online ion transducer of nitrogen, phosphorus, potassium, calcium, magnesium, ferrum.
In the present embodiment, described control module includes that single-chip microcomputer, described single-chip microcomputer are connected to described computer by communication interface.Control module microcontroller part is made up of Renesas's R5F100FCA single-chip microcomputer, and its core circuit is as shown in Figure 4.This single-chip microcomputer built-in high-precision crystal agitator, A/D converter (A/D), pulse-width modulator (PWA), intervalometer etc., be fully able to meet system requirements.
As in figure 2 it is shown, the present embodiment additionally provides a kind of method according to plant growth fertilizer Consumption Analysis device mentioned above, specifically include following steps;
Step S1: concentrated nutrient solution is mixedly configured into water in preparing storehouse the nutritional solution of normal concentration；
Step S2: the nutritional solution of normal concentration step S1 configured injects plantation storehouse, through the plantation of a bit of time, makes the various nutrients in plant absorption nutritional solution；
Step S3: inject plant storehouse used nutritional solution measure storehouse carry out the measurement of each constituent content after the scheduled time arriving；
Step S4: by measure the data that record of storehouse and prepare storehouse normal concentration nutrient solution concentration data between difference can obtain the Expenditure Levels of each element of nutritional solution in this period of time；
Step S5: repeat step S1 to S4, obtain nutritional solution the element Expenditure Levels of multiple period, obtains plant nutrient Expenditure Levels in whole time domain by the result statistics of all periods, integration.
In the present embodiment, after the nutritional solution planting storehouse described in planting enters described measurement storehouse, immediately the nutritional solution in described preparation storehouse is imported described plantation storehouse, then in described preparation storehouse, new nutritional solution is configured, so that being carved with solution soaking during plant in described plantation storehouse, and make the data measured can be continuous in time domain.
In the present embodiment, in described step S3, the measurement data obtained is filtered smoothing processing by extended Kalman filter (Extended Kalman Filter, EFK).As it is shown in figure 5, the basic thought of EKF is by nonlinear system linearisation, then carry out Kalman filtering (Kalman
Filtering, KF).Kalman filtering is that one utilizes linear system state equation, observes data by system input and output, system mode carries out the algorithm of optimal estimation.Owing to observation data include the impact of the noise in system and interference, so optimal estimation is also considered as filtering.This process can predicted and two stages of renewal.At forecast period, wave filter uses the estimation of laststate, makes the estimation to current state.In the more new stage, wave filter utilizes the predictive value that the observation optimization to current state obtains at forecast period, to obtain a more accurate new estimation value.Fig. 5 show the flow chart of EKF.Can significantly cut down the error in measured fertilizer parameter by being extended Kalman filtering, make result more approaching to reality value.
In the present embodiment, the allotment of described preparation storehouse Middle nutrition liquid by being diluted allotment by the method that prewired for high concentration various nutritional solutions mix clear water in proportion, wherein the flow of high concentration nutritional liquid entrance warehouse can be realized by the aperture of regulating cell valve, and the aperture of battery valve regulates realization by the PWM controller that the single-chip microcomputer in control module is built-in.
In the present embodiment, in described step S1 to the measurement of constituent content each in nutritional solution by described first ion transducer array.
In the present embodiment, in described step S3 to the measurement of each constituent content in the solution measuring storehouse by the second ion transducer array.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent and modification, all should belong to the covering scope of the present invention.
Claims (10)
1. a plant growth fertilizer Consumption Analysis device, it is characterised in that: include preparing storehouse, plantation storehouse, measuring storehouse, the first ion transducer array being arranged in preparation storehouse, the second ion transducer array being arranged in measurement storehouse, control module, battery valve actuator；Described battery valve actuator includes several battery valves；The pipeline being all provided by electromagnetic valve between described plantation storehouse with described preparation storehouse, measurement storehouse is connected；Described control module is electrical connected with described first ion transducer array, the second ion transducer array, battery valve actuator.
A kind of plant growth fertilizer Consumption Analysis device the most according to claim 1, it is characterised in that: described preparation storehouse, plantation storehouse, the putting position in measurement storehouse are from high in the end.
A kind of plant growth fertilizer Consumption Analysis device the most according to claim 1, it is characterised in that: described ion transducer array includes the online ion transducer of nitrogen, phosphorus, potassium, calcium, magnesium, ferrum.
A kind of plant growth fertilizer Consumption Analysis device the most according to claim 1, it is characterised in that: described control module includes that single-chip microcomputer, described single-chip microcomputer are connected to described computer by communication interface.
5. the method for a plant growth fertilizer Consumption Analysis device according to claim 1, it is characterised in that: comprise the following steps;
Step S1: concentrated nutrient solution is mixedly configured into water in preparing storehouse the nutritional solution of normal concentration；
Step S2: the nutritional solution of normal concentration step S1 configured injects plantation storehouse, through the plantation of a bit of time, makes the various nutrients in plant absorption nutritional solution；
Step S3: inject plant storehouse used nutritional solution measure storehouse carry out the measurement of each constituent content after the scheduled time arriving；
Step S4: by measure the data that record of storehouse and prepare storehouse normal concentration nutrient solution concentration data between difference can obtain the Expenditure Levels of each element of nutritional solution in this period of time；
Step S5: repeat step S1 to S4, obtain nutritional solution the element Expenditure Levels of multiple period, obtains plant nutrient Expenditure Levels in whole time domain by the result statistics of all periods, integration.
A kind of plant growth fertilizer Consumption Analysis method the most according to claim 5, it is characterized in that: after the nutritional solution planting storehouse described in planting enters described measurement storehouse, immediately the nutritional solution in described preparation storehouse is imported described plantation storehouse, then in described preparation storehouse, new nutritional solution is configured, so that being carved with solution soaking during plant in described plantation storehouse, and make the data measured can be continuous in time domain.
A kind of plant growth fertilizer Consumption Analysis method the most according to claim 5, it is characterised in that: in described step S3, the measurement data of acquisition is filtered smoothing processing by extended Kalman filter.
A kind of plant growth fertilizer Consumption Analysis method the most according to claim 5, it is characterized in that: the allotment of described preparation storehouse Middle nutrition liquid by being diluted allotment by the method that prewired for high concentration various nutritional solutions mix clear water in proportion, wherein the flow of high concentration nutritional liquid entrance warehouse can be realized by the aperture of regulating cell valve, and the aperture of battery valve regulates realization by the PWM controller that the single-chip microcomputer in control module is built-in.
A kind of plant growth fertilizer Consumption Analysis method the most according to claim 5, it is characterised in that: to the measurement of constituent content each in nutritional solution by described first ion transducer array in described step S1.
A kind of plant growth fertilizer Consumption Analysis method the most according to claim 5, it is characterised in that: to the measurement of each constituent content in the solution measuring storehouse by the second ion transducer array in described step S3.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710766A (en) * | 2018-05-25 | 2018-10-26 | 福建农林大学 | A kind of hothouse plants liquid manure machine tune fertilizer calculation method of parameters based on growth model |
| CN110989704A (en) * | 2019-12-10 | 2020-04-10 | 曲靖师范学院 | Intelligent crop nutrition real-time supply and regulation system |
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| JPH0394622A (en) * | 1989-09-06 | 1991-04-19 | Toshiba Corp | Controlling equipment of culture by nutrient solution utilizing fuzzy control |
| CN2828813Y (en) * | 2005-07-01 | 2006-10-18 | 顾亭华 | Soilless culture nutrient solution investigating instrument |
| CN201967393U (en) * | 2010-10-09 | 2011-09-14 | 徐坤 | Vegetable seeding culture device |
| CN104705182A (en) * | 2015-02-10 | 2015-06-17 | 浙江大学 | Cultivating system and method based on plant nitrogen fertilizer application amount optimization |
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2016
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Patent Citations (5)
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| JPH0353824A (en) * | 1989-07-21 | 1991-03-07 | Toshiba Corp | Culturing solution-controlling device |
| JPH0394622A (en) * | 1989-09-06 | 1991-04-19 | Toshiba Corp | Controlling equipment of culture by nutrient solution utilizing fuzzy control |
| CN2828813Y (en) * | 2005-07-01 | 2006-10-18 | 顾亭华 | Soilless culture nutrient solution investigating instrument |
| CN201967393U (en) * | 2010-10-09 | 2011-09-14 | 徐坤 | Vegetable seeding culture device |
| CN104705182A (en) * | 2015-02-10 | 2015-06-17 | 浙江大学 | Cultivating system and method based on plant nitrogen fertilizer application amount optimization |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710766A (en) * | 2018-05-25 | 2018-10-26 | 福建农林大学 | A kind of hothouse plants liquid manure machine tune fertilizer calculation method of parameters based on growth model |
| CN108710766B (en) * | 2018-05-25 | 2022-06-21 | 福建农林大学 | Greenhouse plant liquid manure machine fertilizer regulation parameter calculation method based on growth model |
| CN110989704A (en) * | 2019-12-10 | 2020-04-10 | 曲靖师范学院 | Intelligent crop nutrition real-time supply and regulation system |
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