CN105941101B - Intelligent irrigation and fertilization control method, device and system - Google Patents
Intelligent irrigation and fertilization control method, device and system Download PDFInfo
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- CN105941101B CN105941101B CN201610464737.8A CN201610464737A CN105941101B CN 105941101 B CN105941101 B CN 105941101B CN 201610464737 A CN201610464737 A CN 201610464737A CN 105941101 B CN105941101 B CN 105941101B
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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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/04—Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Abstract
The invention discloses an intelligent fertigation control method, device and system, wherein the method comprises the following steps: the controller acquires farming data through a soil moisture monitoring platform on the Internet; wherein, the farming data comprises water and fertilizer data required by crops and at least one item of the following data: weather prediction data, soil moisture content prediction data or farming specialty guidance data; the controller acquires soil data through a soil water salt sensor; the soil data includes soil moisture content and conductivity; the controller determines irrigation parameters and/or fertilization parameters according to the farming data and the soil data; and the controller controls the fertigation device to fertigate according to the irrigation parameters and/or the fertilization parameters. Soil moisture content monitoring platform through on the internet acquires the farming data, has improved intelligent fertigation's efficiency.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to an intelligent fertigation control method, device and system.
Background
The intelligent control of the existing intelligent fertigation machine is to set specific irrigation and fertilization parameters according to human experience parameters and soil conditions and to perform automatic fertigation according to the parameters.
The irrigation and fertilization mode mainly comprises the following steps: inputting water and fertilizer data required by crops in each period in advance, detecting the soil water content and the fertilizer content in an irrigation area in real time by using a sensor, and setting the maximum and minimum thresholds of the soil water content and the fertilizer by using a control device; when soil water content, fertilizer content are less than the minimum threshold value of settlement, controlling means opens the irrigation automatically, when soil water content, fertilizer content are higher than the minimum threshold value of settlement, controlling means self-closing irrigates. However, the irrigation and fertilization mode only relates to the influence of water and fertilizer required by crops and soil conditions on the crops, the condition for controlling irrigation and fertilization is single, and the irrigation and fertilization efficiency is low.
Aiming at the problems of single condition and low fertigation efficiency of the fertigation control, an effective solution is not provided at present.
Disclosure of Invention
In view of this, the present invention provides an intelligent fertigation control method, device and system, which improve the efficiency of intelligent fertigation.
In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:
in a first aspect, an embodiment of the present invention provides an intelligent fertigation control method, including: the controller acquires farming data through a soil moisture monitoring platform on the Internet; the agricultural data comprises water and fertilizer data required by crops, weather prediction data, soil moisture content prediction data and agricultural professional guidance data; the water and fertilizer data are required by the target crops in different periods; the controller acquires soil data through a soil water salt sensor; wherein the soil data comprises soil moisture content and conductivity; the soil water salt sensor adopts a dual-mode frequency domain reflection technology, determines the dielectric constant of soil according to the propagation frequency of electromagnetic waves in the soil, and obtains the water content and the salt content of the soil according to the dielectric constant; the controller determines irrigation parameters and/or fertilization parameters according to the farming data and the soil data; when the soil moisture content prediction data obtained by the controller shows that the soil moisture content of the local area tends to drought, and simultaneously, the weather prediction data shows that no precipitation exists, the temperature is high, and the transpiration amount of the reference crops is large, setting irrigation parameters higher than the irrigation parameters required by the crops; the controller controls the fertigation device to fertigate according to the irrigation parameters and/or the fertilization parameters; the controller acquires growth data of crops, corresponding soil data, irrigation parameters and fertilization parameters according to a set period; the controller uploads the obtained growth data of the crops, the corresponding soil data, irrigation parameters and fertilization parameters serving as reference data to the soil moisture content monitoring platform, wherein the reference data also carries geographical position information of the crops.
Further, the controller controls the fertigation device to fertigate according to the irrigation parameters and/or the fertilization parameters, and the method comprises the following steps: when the crops need to be fertilized according to the fertilization parameters, the controller controls a fertilizer mixing device in the irrigation and fertilization device to adjust the pH value and the EC value of the fertilizer liquid according to the fertilization parameters.
Further, the controller controlling the fertigation device to fertigate according to the irrigation parameters and/or the fertilization parameters comprises: in the irrigation and fertilization process, the controller acquires current soil data in real time through the soil water salt sensor, and adjusts irrigation parameters and/or fertilization parameters according to the current soil data, so that the irrigation and fertilization device performs subsequent irrigation and fertilization according to the adjusted irrigation parameters and/or the adjusted fertilization parameters until the current soil data indicates that the water and fertilizer data required by crops are met.
In a second aspect, an embodiment of the present invention provides an intelligent fertigation control device, including: the wireless module is used for acquiring farming data through a soil moisture monitoring platform on the Internet; the agricultural data comprises water and fertilizer data required by crops, weather prediction data, soil moisture content prediction data and agricultural professional guidance data; the water and fertilizer data are required by the target crops in different periods; the soil data module is used for acquiring soil data through a soil water salt sensor; wherein the soil data comprises soil moisture content and conductivity; the soil water salt sensor adopts a dual-mode frequency domain reflection technology, determines the dielectric constant of soil according to the propagation frequency of electromagnetic waves in the soil, and obtains the water content and the salt content of the soil according to the dielectric constant; the parameter determining module is used for determining irrigation parameters and/or fertilization parameters according to the farming data and the soil data; the fertigation module is used for controlling the fertigation device to fertigate according to the irrigation parameters and/or the fertilization parameters; the data collection module is used for acquiring growth data of crops, corresponding soil data, irrigation parameters and fertilization parameters according to a set period; when the soil moisture content prediction data obtained by the parameter determining module shows that the soil moisture content of the local area tends to drought, and simultaneously, the weather prediction data shows no precipitation, high temperature and large amount of transpiration of reference crops, the irrigation parameters higher than the requirements of the crops are set; and the data uploading module is used for uploading the obtained growth data of the crops, the corresponding soil data, irrigation parameters and fertilization parameters serving as reference data to the soil moisture monitoring platform, wherein the reference data also carries the geographical position information of the crops.
Further, the fertigation module comprises: and the fertilizer liquid adjusting module is used for controlling a fertilizer mixing device in the irrigation and fertilization device to adjust the pH value and the EC value of the fertilizer liquid according to the fertilization parameters when the crop needs to be fertilized according to the fertilization parameters.
Further, the fertigation module comprises: and the parameter adjusting module is used for acquiring current soil data in real time through the soil water salt sensor in the fertigation process, and adjusting irrigation parameters and/or fertilization parameters according to the current soil data so that the fertigation device performs subsequent fertigation according to the adjusted irrigation parameters and/or the adjusted fertilization parameters until the current soil data indicates that the water and fertilizer data required by crops are met.
In a third aspect, the embodiment of the invention provides an intelligent fertigation control system, which comprises a controller, a soil water and salt sensor and a fertigation device, wherein the controller comprises any one of the devices; the soil water salt sensor is used for acquiring soil data; wherein the soil data comprises soil moisture content and conductivity; and the fertigation device is used for fertigation according to the irrigation parameters and/or the fertilization parameters.
Further, fertigation device is including being used for the mixed fertilizer device of mixed fertilizer and the irrigation equipment that is used for irrigating, is provided with pH sensor and soluble salt concentration sensor in the mixed fertilizer device.
According to the intelligent fertigation control method, the intelligent fertigation control device and the intelligent fertigation control system, the soil moisture content monitoring platform on the Internet is used for acquiring the farming data, the farming data comprises at least one of water and fertilizer data required by crops and weather prediction data, soil moisture content prediction data or farming specialty guidance data, and when the irrigation parameters and the fertilization parameters are determined according to the water and fertilizer conditions required by the crops and the soil conditions, the influence of the weather prediction data, the soil moisture content prediction data or the farming specialty guidance data on the irrigation parameters and the fertilization parameters is considered at the same time, so that the fertigation parameters more suitable for the current conditions of the crops are acquired, and the intelligent fertigation efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a flow chart illustrating an intelligent fertigation control method according to a first embodiment of the invention;
fig. 2 is a block diagram illustrating the structure of an intelligent fertigation control device according to a second embodiment of the invention;
fig. 3 shows a block diagram of an intelligent fertigation control system according to a third embodiment of the invention;
fig. 4 shows a schematic structural diagram of a fertigation device provided by a third embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Example 1
Fig. 1 shows a flowchart of an intelligent fertigation control method according to a first embodiment of the present invention. It should be understood that in other embodiments, the order of some steps in the method may be interchanged according to actual needs, or some steps may be omitted or deleted.
The specific flow of the intelligent fertigation control method shown in fig. 1 will be described in detail below. The method comprises the following steps:
and step S110, the controller acquires farming data through a soil moisture monitoring platform on the Internet.
Specifically, various farming data are published on this soil moisture content monitoring platform, and this farming data mainly includes: water and fertilizer data, weather forecast data, soil moisture forecast data or agricultural professional guidance data required by various crops in different periods. The meteorological forecast data comprises sunshine hours, highest air temperature, lowest air temperature, precipitation, relative humidity, wind speed at 2m, effective accumulated temperature and reference crop transpiration amount of the future days; the soil moisture content prediction data comprises the future soil moisture content change condition; the agricultural professional guidance data comprises professional suggestions of the experts for the agricultural affairs according to the actual conditions of each region.
The controller and the soil moisture content monitoring platform can realize data connection through GPRS, CDMA, 3G, 4G, 5G, Wi-Fi and other public wireless communication networks.
And step S120, the controller acquires soil data through the soil water salt sensor.
Specifically, the soil data includes soil moisture content and conductivity. The soil water salt sensor adopts a dual-mode frequency domain reflection principle, and measures the dielectric constant of soil according to the propagation frequency of electromagnetic waves in the soil, so as to obtain the volume water content and the salt content of the soil. The soil has different water content, salt content and frequency.
Step S130, the controller determines irrigation parameters and/or fertilization parameters according to the farming data and the soil data.
Specifically, when the controller determines irrigation parameters and fertilization parameters, soil data and farming data are considered at the same time, namely irrigation and fertilization are determined not only through the soil condition obtained in real time singly, and weather prediction data, soil moisture content prediction data and farming specialty guidance are combined, so that irrigation and fertilization efficiency is improved. For example: when the controller displays that the precipitation of the area is large in the next two days according to weather forecast data obtained from the soil moisture monitoring platform, and simultaneously the soil data displays that the water content is lower than the water amount required by crops, a small amount of irrigation or no irrigation can be performed, so that the superposition of irrigation and natural precipitation is avoided, the irrigation efficiency is improved, and the cost is saved; when the soil moisture content prediction data obtained by the controller shows that the soil moisture content of the local area tends to drought, and simultaneously, the weather prediction data shows that no precipitation exists, the temperature is high, and the transpiration amount of the reference crops is large, the irrigation parameters higher than the needs of the crops can be set, so that the water lost by transpiration of the crops can be effectively supplemented; when the professional guidance obtained by the controller shows that the yield can be effectively improved by adding the potassium element in the fruit expanding period of the crop, the fertilization parameters of the fertilizer content higher than the fertilizer content normally required by the crop can be set. The agricultural professional guidance is provided by experts according to scientific achievements and practices, can be updated at any time, and is different from the prior art that empirical data of a controller is input in advance.
By combining the soil data and the farming data to determine the irrigation parameters and the fertilization parameters, the efficiency of fertilization and irrigation is greatly improved, the timeliness of production guidance is accepted, and the purposes of reducing cost and improving yield are achieved.
The irrigation parameters and the fertilization parameters can be determined separately or simultaneously according to the actual needs of the crops, such as only irrigation, or irrigation and fertilization simultaneously.
And step S140, controlling the fertigation device to fertigate according to the irrigation parameters and/or the fertilization parameters by the controller.
Specifically, after the irrigation parameters and/or the fertilization parameters are determined in step S130, the controller controls the fertigation device to fertigate. The method specifically comprises the following steps:
when the crops need to be fertilized are determined according to the fertilization parameters, the controller controls a fertilizer mixing device in the fertigation device to adjust the pH value and the EC value of the fertilizer liquid according to the fertilization parameters;
in the irrigation and fertilization process, the controller acquires current soil data in real time through the soil water salt sensor, and adjusts irrigation parameters and/or fertilization parameters according to the current soil data, so that the irrigation and fertilization device performs subsequent irrigation and fertilization according to the adjusted irrigation parameters and/or the adjusted fertilization parameters until the current soil data indicates that water and fertilizer data required by crops are met. The controller adjusts irrigation parameters and fertilization parameters through real-time soil data, and irrigation and fertilization precision is improved.
The intelligent fertigation control method provided by the first embodiment may further include a data acquisition and uploading step, specifically as follows:
the controller acquires growth data of crops, corresponding soil data, irrigation parameters and fertilization parameters according to a set period; and the controller uploads the obtained growth data of the crops, and the corresponding soil data, irrigation parameters and fertilization parameters as reference data to the soil moisture content monitoring platform, wherein the reference data also carries the geographical position information of the crops.
The data information is uploaded to an internet platform, data accumulation and experience accumulation in the region are carried out, local data can be acted on local crops conveniently, the guiding significance is achieved, meanwhile, typical planting modes and typical crops in various regions and soil, climate and planting modes and the like in the region are optimized and adjusted, a crop planting management system which accords with self planting soil, climate and farming operation habits in various regions is obtained, and crop planting management data which accords with economic benefit maximization to the greatest extent is formed.
The intelligent irrigation and fertilization control method provided by the first embodiment obtains the farm work data on the platform by performing data interaction with the soil moisture monitoring platform on the internet, determines the appropriate irrigation parameters and fertilization parameters jointly by combining the farm work data and the soil data of the soil water and salt sensor, improves the efficiency and precision of fertilization and irrigation, receives production guidance timeliness, and achieves the purposes of reducing cost and improving yield.
Example 2
Fig. 2 shows an intelligent fertigation control device in a second embodiment of the invention, which may be located on a controller. The device includes: the system comprises a wireless module 201, a soil data module 202, a parameter determination module 203 and an irrigation fertilization module 204.
And the wireless module 201 is used for acquiring the farming data through a soil moisture monitoring platform on the Internet.
Specifically, the farming data comprises water and fertilizer data required by crops and at least one of the following items: weather prediction data, soil moisture content prediction data or farming specialty guidance data; and the soil data module is used for acquiring soil data through the soil water salt sensor. The meteorological forecast data comprises sunshine hours, highest air temperature, lowest air temperature, precipitation, relative humidity, wind speed at 2m, effective accumulated temperature and reference crop transpiration amount of the future days; the soil moisture content prediction data comprises future soil moisture content change conditions; the agricultural professional guidance data comprises professional suggestions of the experts for the agricultural affairs according to the actual conditions of each region. The wireless module 21 and the soil moisture content monitoring platform can be connected with data through GPRS, CDMA, 3G, 4G, 5G, Wi-Fi and other public wireless communication networks.
And a soil data module 202, configured to acquire soil data through a soil water salt sensor.
Specifically, the soil data includes soil moisture content and conductivity. The soil water salt sensor adopts a dual-mode frequency domain reflection principle, and measures the dielectric constant of soil according to the propagation frequency of electromagnetic waves in the soil, so as to obtain the volume water content and the salt content of the soil. The soil has different water content, salt content and frequency.
And the parameter determining module 203 is used for determining irrigation parameters and/or fertilization parameters according to the farming data and the soil data.
Specifically, when the controller determines irrigation parameters and fertilization parameters, soil data and farming data are considered at the same time, namely irrigation and fertilization are determined not only through the soil condition obtained in real time singly, and weather prediction data, soil moisture content prediction data and farming specialty guidance are combined, so that irrigation and fertilization efficiency is improved. By combining the soil data and the farming data to determine irrigation parameters and fertilization parameters, the efficiency of fertilization and irrigation is greatly improved, the timeliness of production guidance is accepted, and the purposes of reducing cost and improving yield are achieved.
The irrigation parameters and the fertilization parameters can be determined separately or simultaneously according to the actual needs of the crops, such as only irrigation, or irrigation and fertilization.
And the fertigation module 204 is used for controlling the fertigation device to fertigate according to the irrigation parameters and/or the fertilization parameters.
The fertigation module includes: the fertilizer liquid adjusting module is used for controlling a fertilizer mixing device in the irrigation and fertilization device to adjust the pH value and the EC value of the fertilizer liquid according to the fertilization parameters when the crop needs to be fertilized according to the fertilization parameters;
and the parameter adjusting module is used for acquiring current soil data in real time through the soil water salt sensor in the fertigation process, and adjusting irrigation parameters and/or fertilization parameters according to the current soil data so as to enable the fertigation device to perform subsequent fertigation according to the adjusted irrigation parameters and/or the adjusted fertilization parameters until the current soil data indicates that the water and fertilizer data required by crops are met. The controller adjusts irrigation parameters and fertilization parameters through real-time soil data, and irrigation and fertilization precision is improved.
The intelligent fertigation control device that the second embodiment provided can also include data collection module and data upload module, specifically as follows:
the data collection module is used for acquiring growth data of crops, corresponding soil data, irrigation parameters and fertilization parameters according to a set period; and the data uploading module is used for uploading the obtained growth data of the crops, the corresponding soil data, irrigation parameters and fertilization parameters serving as reference data to a soil moisture monitoring platform, and the reference data also carries the geographical position information of the crops. The geographical location information is obtained by a GPS module.
The data information is uploaded to an internet platform, data accumulation and experience accumulation of the region are carried out, local data can be favorably acted on local crops, the guiding significance is achieved, meanwhile, typical planting modes and typical crops of all regions and soil, climate and planting modes of the region are optimized and adjusted, a crop planting management system which accords with self planting soil, climate and farming operation habits of all regions is obtained, and crop planting management data which best accords with economic benefit maximization are formed.
The intelligent fertigation controlling means that the second embodiment provided carries out data interaction through the soil moisture content monitoring platform with on the internet, obtains the farming data on this platform, combines the soil data of farming data and soil water salt sensor to confirm suitable irrigation parameter and fertilization parameter jointly, has improved efficiency, the precision of fertigation irrigation, accepts the timeliness of production guidance, reaches reduce cost increase output's purpose.
Example 3
The intelligent fertigation control system in the third embodiment of the invention, as shown in fig. 3, comprises a controller, a soil water and salt sensor and a fertigation device. The controller comprises the intelligent fertigation control device in the second embodiment.
Specifically, the soil water salt sensor is used for acquiring soil data; the soil data includes soil moisture content and conductivity; the fertigation device is used for fertigation according to irrigation parameters and/or fertilization parameters.
The fertigation device comprises a fertilizer mixing device for mixing the fertilizer and an irrigation device for irrigation, wherein a pH sensor and a soluble salt concentration sensor (namely an EC sensor) are arranged in the fertilizer mixing device. And detecting the pH value and the EC value of the mixed liquid in the fertilizer mixing device by the pH sensor and the EC sensor.
When the mixed liquid ion concentration EC value or pH value of the fertilizing tank is too high, the sensor obtains a value higher than a suitable concentration value for crop growth, the corresponding fertilizer liquid tank electromagnetic valve is controlled to be closed, the fertilizer solution in the fertilizing tank is diluted by irrigation water in the main pipeline, and damage to crop roots caused by too high concentration or pH value is avoided. Otherwise, when the EC value and the PH value in the mixed liquid are too low, the mixed liquid sensor obtains a crop growth appropriate concentration value with the value lower than that set by the internal control program, the electromagnetic valve of the water inlet pipe is controlled to be closed, and the concentration of the fertilizer liquid in the fertilizer application tank is increased, so that the appropriate concentration for the growth of the crops is achieved.
Simultaneously, the soil water salt sensor of the soil near the root system of the crop is combined, the water salt condition of the crop terminal is monitored in real time, irrigation parameters and fertilization parameters are corrected in time according to the water salt parameters of the soil with different depths, which are set in the controller by different crops, new parameters are adjusted and executed, and the water content of the soil near the root system of the crop and the concentration of the fertilizer liquid are always kept in the range suitable for the growth of the crop.
Fig. 4 shows a schematic structural diagram of the fertigation device, wherein 3 kinds of stock solution flow channels are taken as an example, and more or fewer stock solution flow channels can be arranged according to actual needs.
Wherein 3 raw liquid fertilizer barrels A, B, C (namely fertilizer liquid tanks) are arranged; 1 mixed liquid fertilizer barrel D (namely a fertilizer application tank); a plurality of filters 41, 42, 43, 44; a plurality of stainless steel solenoid valves 21, 22, 23, 24, 25; a plurality of flow meters 31, 32, 33, 34, 35, 36; a pH sensor 61; an EC sensor 62; a plurality of venturi- type fertilizer applicators 11, 12, 13. The mixed liquid fertilizer barrel D is provided with a circulating pump for mixing the mixed liquid fertilizer, and the raw liquid fertilizer supply is controlled by an acid-alkali-resistant stainless steel solenoid valve.
The fertigation apparatus shown in fig. 4 has a dual pump system, including a water inlet pump 51 and a water discharge pump 52, which can either actively draw water from the basin or utilize an existing water supply pump from a water source.
In summary, the intelligent fertigation control method, device and system provided by the embodiments of the present invention obtain the pesticide data through the soil moisture monitoring platform on the internet, and determine the irrigation parameters and the fertilization parameters together according to the pesticide data and the soil condition, so as to improve the efficiency and the precision of fertigation and irrigation, receive the timeliness of production guidance, and achieve the purposes of reducing cost and improving yield.
In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An intelligent fertigation control method, characterized in that the method comprises:
the controller acquires farming data through a soil moisture monitoring platform on the Internet; the agricultural data comprises water and fertilizer data required by crops, weather prediction data, soil moisture content prediction data and agricultural professional guidance data; the water and fertilizer data are water and fertilizer data required by target crops in different periods;
the controller acquires soil data through a soil water salt sensor; wherein the soil data comprises soil moisture content and conductivity; the soil water salt sensor adopts a dual-mode frequency domain reflection technology, determines the dielectric constant of soil according to the propagation frequency of electromagnetic waves in the soil, and obtains the water content and the salt content of the soil according to the dielectric constant;
the controller determines irrigation parameters and/or fertilization parameters according to the farming data and the soil data; when the soil moisture content prediction data obtained by the controller shows that the soil moisture content of the local area tends to drought, and simultaneously the weather prediction data shows no precipitation, high temperature and large transpiration amount of reference crops, setting irrigation parameters higher than the irrigation parameters required by the crops;
the controller controls the fertigation device to fertigate according to the irrigation parameters and/or the fertilization parameters;
the controller acquires growth data of the crops, and corresponding soil data, irrigation parameters and fertilization parameters according to a set period;
and the controller uploads the obtained growth data of the crops and the corresponding soil data, irrigation parameters and fertilization parameters serving as reference data to the soil moisture content monitoring platform, wherein the reference data also carries the geographical position information of the crops.
2. The method of claim 1, wherein the controller controls the fertigation device to fertigate in accordance with the irrigation parameters and/or the fertilization parameters, comprising:
and when the crop needs to be fertilized according to the fertilization parameters, the controller controls a fertilizer mixing device in the irrigation and fertilization device to adjust the pH value and the EC value of the fertilizer liquid according to the fertilization parameters.
3. The method of claim 1, wherein the controller controlling the fertigation device to fertigate in accordance with the irrigation parameters and/or the fertilization parameters comprises:
in the irrigation and fertilization process, the controller acquires current soil data in real time through the soil water and salt sensor, and adjusts the irrigation parameters and/or the fertilization parameters according to the current soil data, so that the irrigation and fertilization device performs subsequent irrigation and fertilization according to the adjusted irrigation parameters and/or the adjusted fertilization parameters until the current soil data indicate that the water and fertilizer data required by the crops are met.
4. An intelligent fertigation control device, the device comprising:
the wireless module is used for acquiring farming data through a soil moisture monitoring platform on the Internet; the agricultural data comprises water and fertilizer data required by crops, weather prediction data, soil moisture content prediction data and agricultural professional guidance data; the water and fertilizer data are water and fertilizer data required by target crops in different periods;
the soil data module is used for acquiring soil data through a soil water salt sensor; wherein the soil data comprises soil moisture content and conductivity; the soil water salt sensor adopts a dual-mode frequency domain reflection technology, determines the dielectric constant of soil according to the propagation frequency of electromagnetic waves in the soil, and obtains the water content and the salt content of the soil according to the dielectric constant;
the parameter determining module is used for determining irrigation parameters and/or fertilization parameters according to the farming data and the soil data;
the fertigation module is used for controlling the fertigation device to fertigate according to the irrigation parameters and/or the fertilization parameters;
the data collection module is used for acquiring growth data of the crops, and the corresponding soil data, the irrigation parameters and the fertilization parameters according to a set period; when the soil moisture content prediction data obtained by the parameter determination module shows that the soil moisture content of the local area tends to drought, and meanwhile, the weather prediction data shows no precipitation, high temperature and large transpiration amount of reference crops, the irrigation parameters higher than the requirements of the crops are set;
and the data uploading module is used for uploading the obtained growth data of the crops and the corresponding soil data, irrigation parameters and fertilization parameters to the soil moisture content monitoring platform as reference data, wherein the reference data also carries the geographical position information of the crops.
5. The apparatus of claim 4, wherein the fertigation module comprises:
and the fertilizer liquid adjusting module is used for controlling a fertilizer mixing device in the irrigation and fertilization device to adjust the pH value and the EC value of the fertilizer liquid according to the fertilization parameters when the crop needs to be fertilized according to the fertilization parameters.
6. The apparatus of claim 4, wherein the fertigation module comprises:
and the parameter adjusting module is used for acquiring current soil data in real time through the soil water and salt sensor in the fertigation process, and adjusting the irrigation parameters and/or the fertilization parameters according to the current soil data so as to enable the fertigation device to perform subsequent fertigation according to the adjusted irrigation parameters and/or the adjusted fertilization parameters until the current soil data indicates that the water and fertilizer data required by the crops are met.
7. An intelligent fertigation control system, the system comprising a controller, a soil water salt sensor, and a fertigation device, wherein the controller comprises the device of any of claims 4-6; the soil water and salt sensor is used for acquiring soil data; wherein the soil data comprises soil moisture content and conductivity; and the fertigation device is used for fertigation according to the irrigation parameters and/or the fertilization parameters.
8. The system according to claim 7, wherein the fertigation device comprises a fertilizer mixing device for mixing fertilizer and an irrigation device for irrigating, and a pH sensor and a soluble salt concentration sensor are arranged in the fertilizer mixing device.
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