CN113367046A - Method for intelligently identifying water demand degree of soil and intelligently controlling irrigation water outlet duration based on irrigation system - Google Patents
Method for intelligently identifying water demand degree of soil and intelligently controlling irrigation water outlet duration based on irrigation system Download PDFInfo
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- CN113367046A CN113367046A CN202110440514.9A CN202110440514A CN113367046A CN 113367046 A CN113367046 A CN 113367046A CN 202110440514 A CN202110440514 A CN 202110440514A CN 113367046 A CN113367046 A CN 113367046A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 239000002689 soil Substances 0.000 title claims abstract description 71
- 230000002262 irrigation Effects 0.000 title claims abstract description 25
- 238000003973 irrigation Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003621 irrigation water Substances 0.000 title claims description 4
- 238000009835 boiling Methods 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 9
- 230000001960 triggered effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000001413 cellular effect Effects 0.000 claims 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000001419 dependent effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
- A01G25/023—Dispensing fittings for drip irrigation, e.g. drippers
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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
- A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental Sciences (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a method for intelligently identifying the water demand degree of soil and realizing intelligent control of the water outlet duration of irrigation based on an irrigation system, and aims to solve the problem that the water resource waste is caused because the water outlet duration of the irrigation fields such as gardens and the like is completely dependent on the sense or excessively depends on personal experience and cannot be scientifically and reasonably controlled. The method has the characteristics of being applied to greening planting areas with any shapes and sizes, being capable of measuring the water-needed duration of soil in the irrigation management area and the correlation between the water-needed duration and the water-boiling duration of the water valve controller automatically with low cost and high efficiency, and calculating important data support of the watering duration needed by the area for the intelligent irrigation system.
Description
Technical Field
The invention relates to the field of garden industry, in particular to a method for intelligently identifying the water demand degree of soil and realizing intelligent control of irrigation water outlet duration based on an irrigation system.
Technical Field
In the current garden watering industry field, the watering mode mainly depends on a timing switch valve or senses the soil humidity through a sensor, when the soil humidity is reduced to a certain threshold value, an automatic watering switch is triggered, and a determined watering duration mode is set for proceeding. Although the execution mode can relieve the problem of water demand of the soil to a certain extent, the watering duration is set almost by tapping a head bag or completely through experience and feel of people, the real water demand degree of the soil cannot be scientifically reflected, and the randomness is strong. Meanwhile, the water yield set by the method exceeds the requirement of soil moisture, so that no-reason waste of water resources is caused.
Because the planting and greening areas of garden plants have irregularity, the spraying range and variety of the spray heads and the unfixed mounting mode of the spray heads, no solidification and relatively scientific mode is available for measuring and calculating the water demand degree of soil and controlling the water yield of the water valve switch.
Disclosure of Invention
The invention aims to solve the problems that in the application of the irrigation industry in the garden field, due to the uncertain factors, the water-needed degree of soil cannot be estimated, the watering time is random, the water resource utilization rate is low, the water resource is wasted, and the like. The method has the characteristics of being applied to greening planting areas with any shapes and sizes, being capable of measuring the water-needed duration of soil in the irrigation management area and the correlation between the water-needed duration and the water-boiling duration of the water valve controller automatically with low cost and high efficiency, and calculating important data support of the watering duration needed by the area for the intelligent irrigation system.
In a first aspect of the invention, embodiments include a plant growing area, which may be a growing area with a defined boundary or a virtual grid management area in a large continuous growing area. One or more soil moisture sensors are included in the area, and one or more water emitters are connected to the water circuit and controlled to emit water by a water valve switch controller connected to a source of water having a constant or perceived nearly constant water pressure.
Furthermore, there is a data processing end that can connect this regional soil humidity transducer and water valve switch controller and carry out data communication transmission, and this data processing end can be integrated on water valve switch controller, also can be the service in high in the clouds.
In a second aspect of the invention, the soil moisture sensor may record the relative moisture of the soil at different times and transmit the data to the data processing end as required by the data processing end.
Further, the water valve switch controller can receive the switch valve instruction of the data processing end and execute the switch valve operation at the corresponding time.
Furthermore, after the water valve switch is opened, one or more spray heads of the water valve switch controller are connected, the spray heads have similar water yield in unit time, and plants in the area are watered according to the spraying range characteristics of the spray heads.
In the third aspect of the present invention, the soil moisture sensor is installed within the spray coverage of the nozzle to which the water valve controller is connected, and may be installed at any position within the spray coverage.
Furthermore, the number of soil humidity sensors related to the data of the regional water valve switch controller can be one, or a plurality of soil humidity sensors can be provided, and the soil humidity sensors can be managed and subjected to data analysis and calculation by the data processing end.
In the embodiment of the invention, the system firstly senses the soil relative humidity data through the soil humidity sensor, a watering time instruction is issued by the water supply valve switch controller at the data processing end, the relation coefficient between the humidity variation and the water valve boiling time is recorded through the acquired relative humidity variation condition, and the subsequent watering time of the whole embodiment area is controlled by the relation coefficient and the watering target humidity, so that the intelligent and automatic watering control is realized, and the aims of efficiently utilizing water resources and saving water can be more scientifically realized.
Drawings
FIG. 1 is a schematic diagram of the system operation of the present invention;
FIG. 2 is a schematic diagram of a number of possible installation arrangements for which the present invention is suitable;
Detailed Description
In the embodiment, a set of intelligent irrigation equipment is installed in a plant growing area 101, which is a target area for realizing intelligent irrigation management and comprises a soil humidity sensor 104, water outlet nozzles (102, 110, 112, 114) and spraying coverage areas (103, 111, 113, 115) thereof, a water valve switch controller 105, a water source 108 with water pressure, a water flow direction 107, a water channel 109 between the water valve controller and the nozzles, and a data processing end 106.
The intelligent irrigation system of the plant growing area 101 is installed and the association relationship between the soil moisture sensor 104 and the water valve switch controller 105 is established at the data processing end 106.
At the time of initial use, the system will automatically determine the soil moisture coefficient, K: i.e. when the K value recorded in the data processing side is absent. Since the initial determination condition for intelligent irrigation is not triggered when the relative soil humidity of the soil humidity sensor 104 is above 50%, the initial determination standard needs to satisfy that the relative humidity data H0 of the currently determined soil humidity sensor is less than 50%. And if the measured current soil relative humidity is more than 50%, reducing the waiting soil humidity data to be within 50%.
After the determination condition is met, a first boiling water time instruction T1 is sent to the water valve switch controller 105 by the data processing end 106, and the default T1 value of the system is 60 seconds.
When the watering operation at the time of T1 is finished, the soil relative humidity H1 of the current soil humidity sensor 104 is obtained, and if the relative humidity difference H1-H0 before and after watering is more than or equal to 20%, the soil moisture coefficient K can be recorded:
if the relative humidity change is less than 20% when measuring K1, further K value measurement is needed: k2To KnThe water boiling time is as follows: t is2＝T1*2、T3＝T1*3……Tn＝T1N and so on until the first change in relative humidity is greater than 20%, and recording the KnThe value is the final K value;
if at the measurement of K1Relative humidity H after completion of watering1And (3) more than or equal to 100%, further K value measurement and calculation are required: k2To KnTime for boiling water T2＝T1/2、T3＝T1/3……Tn＝T1N until the first relative humidity H is determined1Less than 100%, recording the KnThe final K value;
the soil moisture coefficient K can be measured and calculated by one soil humidity sensor, for more accurately measuring the K value, a plurality of soil humidity sensors can be arranged in the spray head water spraying coverage area of the area, the K value of each soil humidity sensor is measured and calculated, and the watering time precision of the area is improved by taking the average value.
In order to increase the accuracy of the measured K value, the K value may be measured several times and the accuracy may be improved by taking an average value.
The data processing end 106 sets and stores a soil relative humidity critical value La and a soil relative humidity target value Lm after irrigation of an embodiment area, the soil humidity sensor 104 sends current soil relative humidity data H to the data processing end at regular intervals, the data processing end compares the magnitude relation between the soil relative humidity H collected every time and the humidity critical value La, when the returned soil relative humidity H is smaller than the humidity critical value La, an irrigation condition is triggered, the data processing end 106 calculates the irrigation time t, the irrigation time t is sent to the water valve controller 105 in a watering time period, and irrigation operation is executed, when the time t of secondary irrigation is calculated in the following mode:
fig. 2 shows various installation and deployment modes of the equipment, 200 is a boundary of an area for landscaping, 201, 202, 203 and 204 are 4 different management areas divided by virtual boundary lines 210 and 211, and each management area is provided with a water spraying nozzle 221, a soil humidity sensor 222, a water valve switch controller 223 and a data processing end 224, and the dotted line range of 225 is a spraying coverage surface of the nozzle.
201. 202, 203, 204 management area, the spraying direction range and the soil moisture sensor number are all different, which represents different variables which may occur in different installation and deployment fields.
Fig. 2 is only a few examples of possible installation deployments to facilitate understanding of the intended meaning of the invention, but the example diagram does not fully outline all possibilities for deployment.
It is easy to find that the intelligent watering control system can be used for intelligently identifying the water demand degree of soil and realizing the intelligent control of the watering duration of the watering system no matter changing the installation position of the soil humidity sensor, adjusting the installation mode of the spray head, and changing the type and the spraying range of the spray head as long as the soil humidity sensor is in the spray coverage range of the spray head.
Claims (8)
1. A method for intelligently identifying the water demand degree of soil and intelligently controlling the irrigation water outlet time based on an irrigation system is characterized by comprising the following steps:
based on an irrigation system, the irrigation system comprises a soil humidity sensor, a water valve switch controller, a water outlet spray head, a water path, a water source and a data processing end;
the soil humidity sensor, the water valve switch controller associated with the soil humidity sensor, the water outlet spray head and the water path are installed completely, and the spraying area of the water outlet spray head can cover the soil humidity sensor associated with the water valve switch controller for controlling the water outlet of the spray head;
based on current relative humidity data H of a soil humidity sensor sensing end and soil humidity critical data L of a management area of a data processing endaWatering target humidity data Lm；
Based on the soil moisture coefficient K;
water boiling time T based on water valve switch controller1；
The soil moisture coefficient K is measured by the following calculation formula:
in the above formula, H0For determining the relative humidity, T, of a soil moisture sensor before switching on and off of a K-value water valve switch controller1For determining the water-boiling time of the water valve operated by K, H1Is boiled water T1After the time, obtaining the relative humidity of the soil-entering humidity sensor;
when the K value of the data processing end of the area does not exist or needs to be measured again, the data processing end automatically records H0、H1Sending the watering time T1And recording the calculated K value;
when the relative humidity data monitored by the soil humidity sensor is lower than the soil humidity critical data L of the areaaWhen the water is boiled, sending a command of water boiling time t to a water valve switch controller for managing the water outlet spray head of the area;
the calculation formula of the issued boiling water time t is as follows:
in the above formula, LmWatering the target humidity of the area, wherein H is the relative humidity of the current soil sensor, and K is the measured soil moisture coefficient of the last time;
2. the method as recited in claim 1, wherein: the data processing end determines the K value, including the initial soil relative humidity H when the K value is determined again0<The automatic determination behavior is triggered when the K value is determined 50%, and the following conditions are also met when the K value is determined: initial time T in the measurement of K1Is 60 seconds (in T)1The provisional K value of the time measurement is recorded as K1) And the measured relative humidity change value H of the soil1-H0Need more than 20%, and water T1Implemented soil relative humidity H1If it needs to be less than 100%, recording the K1The value is a finally measured value K and is recorded to a data processing end;
if at the measurement of K1And then, if the relative humidity variation is less than 20%, further K value measurement needs to be carried out: k2To KnThe water boiling time is as follows: t is2＝T1*2、T3＝T1*3……Tn＝T1N and so on until the first change in relative humidity is greater than 20%, and recording the KnThe value is the final K value;
if at the measurement of K1Relative humidity H after completion of watering1And (3) more than or equal to 100%, further K value measurement and calculation are required: k2To KnTime for boiling water T2＝T1/2、T3＝T1/3……Tn＝T1N until the first relative humidity H is determined1Less than 100%, recording the KnThe final K value;
3. the method as set forth in claim 1, wherein the obtained post-watering soil relative humidity H is obtained after the end of the watering performed when the K value is measured due to the diffusivity of water in the soil1Can be obtained immediately after watering is finished, and the relative humidity H can be obtained after a period of time1The accuracy of measurement is more facilitated;
4. the method of claim 1, wherein the data processing terminal is a cloud service or a data processor integrated with a water valve switch controller, and data transmission is performed wirelessly, including but not limited to Wifi, bluetooth, zigbee, Lora, and cellular data;
5. the method of claim 1, wherein the soil moisture sensor and the water valve switch controller are either two separate devices or are integrated into a single device;
6. the method of claim 1, wherein a soil moisture sensor can be used as a data reference in a management area, and data of a plurality of soil moisture sensors can also be used for common reference judgment;
7. the method of claim 1, wherein the target irrigation humidity is LmAcquiring the target humidity of the plant type from the data processing end, wherein the target humidity can be solidified relative humidity data or the plant type planted in the area;
8. the method of claim 2, wherein the measured K value is periodically re-measured and updated by the system automatically or manually.
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| CN202110440514.9A CN113367046A (en) | 2021-04-26 | 2021-04-26 | Method for intelligently identifying water demand degree of soil and intelligently controlling irrigation water outlet duration based on irrigation system |
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| CN202110440514.9A CN113367046A (en) | 2021-04-26 | 2021-04-26 | Method for intelligently identifying water demand degree of soil and intelligently controlling irrigation water outlet duration based on irrigation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115380806A (en) * | 2022-08-08 | 2022-11-25 | 中国电信股份有限公司 | Multi-stage irrigation method and device, electronic equipment and storage medium |
| CN115931043A (en) * | 2022-11-07 | 2023-04-07 | 河北北方学院 | Full-automatic intelligent control greenhouse for breeding potato breeder seeds |
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Cited By (3)
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| CN115380806A (en) * | 2022-08-08 | 2022-11-25 | 中国电信股份有限公司 | Multi-stage irrigation method and device, electronic equipment and storage medium |
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