CN117397447A

CN117397447A - Irrigation device for agricultural planting and application method thereof

Info

Publication number: CN117397447A
Application number: CN202311724038.9A
Authority: CN
Inventors: 李慧蓉; 何江; 胡荣山; 董阿梅; 秦峰
Original assignee: Puxian Ecological Product R&d Technology Service Center
Current assignee: Puxian Ecological Product R&d Technology Service Center
Priority date: 2023-12-15
Filing date: 2023-12-15
Publication date: 2024-01-16
Anticipated expiration: 2043-12-15
Also published as: CN117397447B

Abstract

The invention relates to the technical field of monitoring and early warning, in particular to an irrigation device for agricultural planting and a use method thereof. And (5) carrying out mixed irrigation on the farmland by using the reclaimed water and natural water. Alternatively, the natural water can be natural water fully mixed with fertilizer to finish irrigation of farmlands; the labor capacity of workers is effectively reduced, and the efficiency is improved. The acuity of monitoring and early warning for farmland is improved.

Description

Irrigation device for agricultural planting and application method thereof

Technical Field

The invention relates to the technical field of monitoring and early warning, in particular to an irrigation device for agricultural planting and a use method thereof.

Background

Drought in farmlands means that soil moisture in farmlands is severely insufficient to supply moisture required for normal growth of crops within a certain period of time. Drought is a natural disaster that can have serious impact on agricultural production and farmer life-time. The reclaimed water is waste water which can be reused after being treated or purified to a certain extent, and mainly comes from urban domestic sewage, industrial waste water, rural domestic sewage and the like. The regenerated water irrigates farmlands, which is an effective water resource utilization mode, can relieve the problem of water resource shortage, improve the water efficiency and reduce the influence of wastewater discharge on the environment. However, since industrial wastewater may contain heavy metals, if these wastewater is not sufficiently treated or the treatment effect is poor, the heavy metals may enter farmlands through the reclaimed water and be deposited in the soil. The long-term use of reclaimed water containing heavy metals can pose risks to farmland soil quality and crop safety.

The farmland waterlogging can cause insufficient oxygen in soil and oxygen deficiency in root systems, and the normal respiration and nutrient absorption of plants are affected, so that the growth of plants is inhibited. After the plants are damaged by waterlogging, the plants grow slowly, and the leaves yellow, die and even die.

In order to ensure the normal growth of crops, obtain high and stable yield, the crops must be supplied with sufficient moisture and fertilizer. At present, people usually adopt a mode of independent fertilization and independent irrigation, and the working efficiency is lower.

In summary, soil moisture balance has an important impact on crop growth and yield.

CN114467716a discloses a farmland drought and flood monitoring method and system, which comprises obtaining water content values at two ends and two sides of farmland; comparing the four moisture values to obtain a maximum moisture value and a minimum moisture value; then judging whether the maximum moisture value is smaller than or equal to a preset first moisture threshold value, and if so, outputting an irrigation signal; then, based on irrigation signals, irrigating farmlands at positions corresponding to the moisture values according to priorities from small moisture values to large moisture values; judging whether the minimum water content value is larger than a preset second water content threshold value, and if so, outputting a water drainage signal; wherein the second moisture threshold is greater than the first moisture threshold; then, based on the drainage signal, draining the farmland at the position corresponding to the water content value according to the priority from the water content value to the low water content value; it follows that the prior art has the following problems: the comprehensive detection of each detection area in the farmland is not considered, when the soil state of a single detection area does not meet the preset standard, corresponding solving measures are not considered according to the specific conditions of the environment of the farmland, the soil condition of the farmland is not detected in the use process of reclaimed water, and the pertinence of the warning information of farmland monitoring and early warning is influenced, and meanwhile the acuity of the warning for farmland monitoring and the early warning is further influenced.

Disclosure of Invention

Therefore, the invention provides an irrigation device for agricultural planting and a use method thereof, which are used for solving the problems that in the prior art, comprehensive detection is not considered for each detection area in a farmland, corresponding solving measures are not considered according to the specific conditions of the environment where a farmland is located when the soil state of a single detection area does not meet preset standards, the soil condition of the farmland is detected in the use process of reclaimed water, the pertinence of alarm information of farmland monitoring and early warning is influenced, and meanwhile the acuity of farmland monitoring and early warning is further influenced.

In one aspect, the present invention provides an irrigation device for agricultural planting, comprising: the data processing module is used for storing data information of farmlands to be detected and dividing the farmlands into a plurality of detection areas according to distribution of irrigation channels in the farmlands; the data information comprises historical data of specific areas, relief trends, irrigation canal distribution and precipitation in farmland areas.

The detection module comprises a plurality of detection mechanisms which are respectively embedded in each detection area, wherein each detection mechanism comprises a fixed rod fixed in the soil, and a humidity detector for acquiring the humidity of the soil is arranged outside the fixed rod; the upper end of the fixed rod is connected with an extension rod which extends upwards to the outside of the soil, and an ultrasonic water level gauge for acquiring the water level height in the detection area is arranged at the top of the extension rod.

The central control module is respectively connected with the data processing module and corresponding parts in the detection module and is used for judging whether the soil state of each detection area meets the preset standard according to the humidity acquired by the humidity detector, controlling the water pump to adjust the irrigation quantity of the farmland to a corresponding value by combining the humidity of each detection area and the historical data of the precipitation quantity in the farmland area when judging that the soil state of the single detection area does not meet the preset standard, or adjusting the opening of the irrigation canal gate in the irrigation canal adjacent to the single detection area to the corresponding value, and judging whether alarm information is sent according to the humidity of the single detection area acquired again by the humidity detector under the condition that the adjustment of the opening of the irrigation canal gate is completed.

And the alarm module is connected with the central control module and used for sending out corresponding alarm information according to the judging result of the central control module.

Further, the central control module periodically monitors each detection area, determines whether the soil state of the single detection area meets a preset standard according to the humidity acquired by the humidity detector arranged in the detection area aiming at the central control module of the single detection area, determines the treatment mode of the soil of the single detection area according to the humidity of each detection area under the condition that the soil state of the single detection area is not met with the preset standard, or performs secondary determination whether the soil state of the single detection area meets the preset standard according to the water level acquired by the ultrasonic water level gauge in the single detection area under the condition that the soil state of the single detection area is not met with the preset standard.

Further, the central control module calculates the difference between the average value of the humidity of each detection area and the humidity of the single detection area, and marks the difference as a humidity difference, and the central control module determines the treatment mode of the soil of the single detection area according to the obtained humidity difference, wherein the central control module controls the water pump to adjust the irrigation quantity of the farmland to a corresponding value according to the difference between the first preset humidity and the humidity of the single detection area obtained by the humidity detector, or adjusts the opening of each irrigation canal gate in the irrigation canal adjacent to the single detection area to a corresponding value according to the difference between the humidity difference and the preset humidity difference.

Further, the central control module is provided with a plurality of adjustment modes aiming at the opening degree of each irrigation canal gate in the irrigation canal around the single detection area according to the gate difference value, and the adjustment modes are different in adjustment amplitude aiming at the opening degree of each irrigation canal gate in the irrigation canal around the single detection area.

The gate difference value is the difference value between the humidity difference value and a preset humidity difference value.

And under the condition that the opening degree of the irrigation canal gate is adjusted, the central control module controls the humidity detector to reacquire the humidity of the single detection area, and if the acquired humidity of the single detection area is smaller than or equal to the first preset humidity, the central control module controls the alarm module to send out alarm information for blocking the irrigation canal.

If the acquired humidity for the single detection area is larger than the first preset humidity, the central control module judges that the irrigation canal gate keeps the current operation parameters to operate.

Further, the central control module is provided with a regulation mode aiming at the irrigation quantity of the farmland based on the difference value of the first preset humidity and the humidity of the single detection area acquired by the humidity detector, and the regulation amplitude of each regulation mode aiming at the irrigation quantity of the farmland is different.

The central control module acquires the current month and calculates the average precipitation of the current month in each year in the historical data under the condition of completing the adjustment of the irrigation quantity of the farmland, and is provided with a plurality of correction modes for the irrigation quantity of the farmland based on the average precipitation, wherein the correction amplitudes of the correction modes for the irrigation quantity of the farmland are different.

And (3) carrying out mixed irrigation on the farmland by using the regenerated water and natural water.

Further, the central control module determines whether the soil state of the single detection area meets a preset standard or not based on the water level height obtained by the ultrasonic water level gauge arranged in the single detection area, and when the soil state of the single detection area is primarily determined to meet the preset standard, the central control module performs secondary determination on whether the soil state meets the preset standard or not according to the topography condition of the single detection area, or when the soil state of the single detection area is determined not to meet the preset standard, the opening degree of each irrigation canal gate in irrigation canals around the single detection area is adjusted to a corresponding value according to the difference value between the water level height obtained by the ultrasonic water level gauge in the single detection area and the first preset water level height.

Further, the central control module is provided with a plurality of correction modes aiming at the first preset water level height based on the height difference value, and the correction amplitudes of the correction modes aiming at the first preset water level height are different.

The height difference value is the height difference value between the to-be-detected farmland topography high point stored in the data processing module and the topography high point in the single detection area.

The central control module judges whether the soil state of a single detection area accords with a preset standard or not according to the corrected first preset water level height under the condition of finishing the correction of the first preset water level height, if the water level height obtained by the ultrasonic water level meter is smaller than or equal to the corrected first preset water level height, the central control module judges that the soil state of the single detection area accords with the preset standard, and marks the detection area as a qualified detection area; if the water level obtained by the ultrasonic water level gauge is greater than the corrected first preset water level, the central control module adjusts the opening of each irrigation canal gate in the irrigation canal around the single detection area to a corresponding value according to the difference value between the water level obtained by the ultrasonic water level gauge in the single detection area and the first preset water level.

Further, the central control module is provided with a plurality of adjusting modes aiming at the opening degree of each irrigation canal gate in the irrigation canal around the single detection area based on the water level difference value, and the adjusting modes are different in adjusting amplitude aiming at the opening degree of each irrigation canal gate in the irrigation canal around the single detection area.

The water level difference is the difference between the water level height obtained by the ultrasonic water level gauge in the single detection area and the first preset water level height.

Further, the central control module acquires the total content of each heavy metal of the soil with preset quality in the farmland by using the heavy metal detector under the condition that the judgment of whether the soil state of each detection area in the farmland to be detected meets the preset standard is completed, so as to determine whether the irrigation mode of the farmland to be detected meets the preset standard according to the total content of each heavy metal, and when the irrigation mode of the farmland to be detected is judged not to meet the preset standard, adjusts the proportion of the reclaimed water to the natural water to a corresponding value according to the difference value of the total content of each heavy metal and the total content of the first preset heavy metal, or controls the alarm module to send alarm information for soil abnormality when the irrigation mode of the farmland to be detected is judged not to meet the preset standard.

Further, the central control module is provided with a plurality of adjustment modes aiming at the proportion of the reclaimed water to the natural water based on the difference value between the total content of each heavy metal and the total content of the first preset heavy metal, and the adjustment amplitudes of the adjustment modes aiming at the proportion of the reclaimed water to the natural water are different.

On the other hand, the invention also provides a use method of the agricultural planting irrigation device, which comprises the steps of judging whether the soil state of a single detection area meets the preset standard according to the humidity acquired by a humidity detector in the detection area aiming at a single detection area central control module, and when judging that the soil state of the single detection area does not meet the preset standard, controlling a water pump to adjust the irrigation quantity aiming at farmlands to a corresponding value according to the difference value between the first preset humidity and the humidity of the single detection area acquired by the humidity detector according to the humidity judgment of each detection area, or adjusting the opening of each irrigation canal gate in an irrigation canal adjacent to the single detection area to the corresponding value according to the difference value between the humidity difference value and the preset humidity difference value.

And when the soil state of the single detection area is preliminarily judged to be not in accordance with the preset standard according to the humidity acquired by the humidity detector arranged in the detection area, carrying out secondary judgment on whether the soil state of the single detection area is in accordance with the preset standard according to the water level height acquired by the ultrasonic water level gauge in the single detection area.

And when the soil state of the single detection area is secondarily judged to be not in accordance with the preset standard, adjusting the opening degree of each irrigation canal gate in the irrigation canal around the single detection area to a corresponding value according to the difference value between the water level height acquired by the ultrasonic water level gauge in the single detection area and the first preset water level height.

And when the irrigation mode of the farmland to be detected is judged not to meet the preset standard, adjusting the proportion of the reclaimed water to natural water to a corresponding value according to the difference value between the total content of each heavy metal and the total content of the first preset heavy metal, or controlling an alarm module to send out alarm information for soil abnormality.

When the irrigation mode of the farmland to be detected is judged to meet the preset standard, the water pump is controlled to continuously operate by using the current operation parameters.

Compared with the prior art, the central control module detects each detection area one by one according to the humidity detector arranged in each detection area so as to acquire the soil condition in each detection area in detail; when the single detection area is detected and the humidity is too low as a result of detection, the soil in the single detection area is dried; when the detection result is that the humidity is too high, the situation that the single detection area is waterlogged is preliminarily judged, each area in the farmland to be detected is detected one by one, and the condition in the farmland is timely obtained, so that the acuity of monitoring and early warning of the farmland is further improved.

Further, when the humidity is too low as a result of detection for a single detection area, an average value of the humidity of each detection area in the farmland to be detected is obtained, and when the humidity of each detection area in the farmland is very low, the irrigation amount of the farmland is adjusted for insufficient irrigation amount of the farmland; the humidity of each detection area in the farmland is very high, the humidity of only a single detection area is low, and the preliminary judgment is that the gate opening of the irrigation canal around the single detection area is too small to fully irrigate the single detection area; and (3) comprehensively detecting each detection area in the farmland, so that when the soil state of the single detection area does not meet the preset standard, corresponding solving measures are adopted, and the agricultural automation level is effectively improved, and meanwhile, the acuity of monitoring and early warning for the farmland is further improved.

Further, the humidity in the single detection area is reacquired when the adjustment of the opening degree of the gate is completed, and the alarm module sends out alarm information for the blockage of the irrigation canal when the reacquired humidity is still too low.

Further, the central control module comprehensively considers the humidity state of farmland soil and the annual precipitation condition when adjusting the irrigation quantity of the farmland, so that the application universality and the application adaptability of the farmland monitoring and early warning device are further improved while the farmland monitoring and early warning device is effectively applied to the actual conditions of various places.

Further, when the single detection area is preliminarily judged to be waterlogged, the central control module acquires the water level in the single detection area, when the water level in the single detection area is higher, the central control module corrects the judgment standard of the water level according to the situation of the topography of the farmland, so that the tolerance of the water level is increased when the topography of the single detection area is higher, after finishing correcting the judgment standard, the central control module further judges according to the corrected judgment standard again, and when the water level is too high, the opening degree of each irrigation channel gate in the irrigation channels around the single detection area is high to cooperate with flood discharge, and the water pump is controlled to stop irrigation. The application universality and the adaptability of the farmland monitoring and early warning device are further improved while the detection areas are effectively monitored in a targeted manner according to the actual topography conditions of the detection areas.

Further, the method is used for irrigating the farmland by comprehensively using natural water and reclaimed water, when the determination of the soil state of each detection area in the farmland is completed, the heavy metal content in the farmland soil is obtained, whether the use specific gravity of the natural water and the reclaimed water is regulated or the alarm information for soil abnormality is sent out is judged according to the total content of each heavy metal in the soil with the detection preset quality, the corresponding alarm information is sent out according to the specific condition of the soil, the use condition of the reclaimed water is effectively monitored, corresponding measures are timely found and taken before the abnormality of the soil which is difficult to recover occurs, and the application universality and the adaptability of the farmland monitoring and early warning device are further effectively improved.

Drawings

FIG. 1 is a block diagram of an irrigation device for agricultural planting according to an embodiment of the present invention;

FIG. 2 is a flowchart of a soil determination method in which a central control module determines whether the soil status of a single detection area meets a preset standard according to the humidity acquired by a humidity detector disposed in the detection area;

FIG. 3 is a flowchart showing a processing mode of determining soil in a single detection area by a central control module according to a calculated humidity difference value;

FIG. 4 is a flowchart of a method for determining the opening degree of each irrigation ditch gate in the irrigation ditch around a single detection area by a central control module according to the obtained gate difference value;

fig. 5 is a flow chart of steps of a method for using the agricultural planting irrigation device according to an embodiment of the present invention.

Detailed Description

In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.

It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the block diagrams of the irrigation device for agricultural planting according to the embodiments of the present invention are shown, respectively, wherein the central control module determines whether the soil state of a single detection area meets a preset standard according to the humidity obtained by a humidity detector disposed in the detection area, the central control module determines a process flow chart of the soil of the single detection area according to the obtained humidity difference, the central control module determines an adjustment flow chart of the opening degree of each irrigation canal gate in irrigation canals around the single detection area according to the obtained gate difference, and the step flow chart of the usage method of the irrigation device for agricultural planting; the embodiment of the invention relates to an irrigation device for agricultural planting and a use method thereof, comprising the following steps: the treated or purified reclaimed water is used for irrigation of farmlands to relieve water resource shortage, improve water efficiency and reduce the influence of wastewater discharge on the environment. The opening degree of the irrigation canal gate is adjusted so as to adjust the irrigation quantity of each detection area, and the waste of water resources is reduced while the full irrigation of farmlands is ensured.

The data processing module is used for storing data information of farmlands to be detected and dividing the farmlands into a plurality of detection areas according to distribution of irrigation channels in the farmlands; the data information comprises historical data of specific areas, relief trends, irrigation canal distribution and precipitation in farmland areas.

The detection module comprises a plurality of detection mechanisms which are respectively embedded in each detection area, and each detection mechanism is provided with a humidity detector for acquiring the humidity of soil and an ultrasonic water level gauge for acquiring the water level height in the detection area.

The detection mechanism comprises a fixed rod fixed in the soil, and a humidity detector for acquiring the humidity of the soil is arranged outside the fixed rod; the upper end of the fixed rod is connected with an extension rod which extends upwards to the outside of the soil, and an ultrasonic water level gauge for acquiring the water level height in the detection area is arranged at the top of the extension rod.

Specifically, the central control module periodically monitors each detection area, and determines whether the soil state of the single detection area accords with a soil judgment mode of a preset standard according to the humidity acquired by the humidity detector in the detection area aiming at the single detection area central control module, wherein: the first soil judgment mode is that the central control module judges that the soil state of a single detection area does not accord with a preset standard, and determines the treatment mode of the soil of the single detection area according to the humidity of each detection area; the first soil judgment mode meets the condition that the humidity acquired by the humidity detector is smaller than or equal to first preset humidity.

The second soil judgment mode is that the central control module judges that the soil state of a single detection area meets a preset standard, and marks the detection area as a qualified detection area; the second soil judgment mode meets the condition that the humidity acquired by the humidity detector is smaller than or equal to second preset humidity and larger than first preset humidity, and the first preset humidity is smaller than the second preset humidity.

The third soil judgment mode is that the central control module preliminarily judges that the soil state of a single detection area does not accord with a preset standard, and judges whether the soil state of the single detection area accords with the preset standard or not for the second time according to the water level height obtained by the ultrasonic water level gauge in the single detection area; the third soil judgment mode satisfies that the humidity acquired by the humidity detector is greater than the second preset humidity.

Wherein the first preset humidity is 50%, and the second preset humidity is 80%.

The central control module detects each detection area one by one according to the humidity detector arranged in each detection area so as to acquire the soil condition in each detection area in detail; when the single detection area is detected and the humidity is too low as a result of detection, the soil in the single detection area is dried; when the detection result is that the humidity is too high, the situation that the single detection area is waterlogged is preliminarily judged, each area in the farmland to be detected is detected one by one, and the condition in the farmland is timely obtained, so that the acuity of monitoring and early warning of the farmland is further improved.

Specifically, the central control module calculates the difference between the average value of the humidity of each detection area and the humidity of a single detection area in the first soil judgment mode, and marks the difference as a humidity difference, and the central control module determines the treatment mode of the soil of the single detection area according to the obtained humidity difference, wherein: the first processing mode is that the central control module controls the water pump to adjust the irrigation quantity of the farmland to a corresponding value according to a difference value between a first preset humidity and the humidity of a single detection area acquired by the humidity detector; the first processing mode meets the condition that the humidity difference value is smaller than or equal to a preset humidity difference value.

The second processing mode is that the central control module adjusts the opening of each irrigation canal gate in the irrigation canal adjacent to the single detection area to a corresponding value according to the difference value of the humidity difference value and the preset humidity difference value; the second processing mode satisfies that the humidity difference is larger than a preset humidity difference, wherein the preset humidity difference is 20%.

When the humidity is too low and the detection result is that the single detection area is detected, acquiring an average value of the humidity of each detection area in the farmland to be detected, and when the humidity of each detection area in the farmland is very low, adjusting the irrigation quantity of the farmland for insufficient irrigation quantity of the farmland; the humidity of each detection area in the farmland is very high, the humidity of only a single detection area is low, and the preliminary judgment is that the gate opening of the irrigation canal around the single detection area is too small to fully irrigate the single detection area; and (3) comprehensively detecting each detection area in the farmland, so that when the soil state of the single detection area does not meet the preset standard, corresponding solving measures are adopted, and the agricultural automation level is effectively improved, and meanwhile, the acuity of monitoring and early warning for the farmland is further improved.

Specifically, the central control module calculates a difference value between a humidity difference value and a preset humidity difference value in the second processing mode, marks the difference value as a gate difference value, and determines an adjustment mode for opening degrees of all irrigation canal gates in irrigation canals around a single detection area according to the obtained gate difference value, wherein: the first opening adjustment mode is that the central control module uses a first preset opening adjustment coefficient to adjust the opening of each irrigation canal gate in the irrigation canal around the single detection area to a corresponding value; the first opening adjustment mode meets the condition that the gate difference value is smaller than or equal to a first preset gate difference value.

The second opening adjustment mode is that the central control module uses a second preset opening adjustment coefficient to adjust the opening of each irrigation canal gate in the irrigation canal around the single detection area to a corresponding value; the second opening adjustment mode meets the condition that the gate difference value is smaller than or equal to a second preset gate difference value and larger than the first preset gate difference value, and the first preset gate difference value is smaller than the second preset gate difference value.

The third opening adjustment mode is that the central control module uses a third preset opening adjustment coefficient to adjust the opening of each irrigation canal gate in the irrigation canal around the single detection area to a corresponding value; the third opening adjustment mode meets the condition that the gate difference value is larger than the second preset gate difference value.

Wherein the first preset gate difference is 5%, the second preset gate difference is 11%, the first preset opening adjustment coefficient is 1.12, the second preset opening adjustment coefficient is 1.23, and the third preset opening adjustment coefficient is 1.29.

Specifically, the central control module calculates a difference value between a first preset humidity and the humidity of a single detection area acquired by the humidity detector in the first processing mode, marks the difference value as a detection difference value, and determines an adjustment mode of irrigation quantity of a farmland according to the obtained detection difference value, wherein: the first irrigation quantity adjusting mode is that the central control module uses a first preset irrigation adjusting coefficient to control the water pump to adjust the irrigation quantity of the farmland to a corresponding value; the first irrigation quantity adjusting mode meets the condition that the detection difference value is smaller than or equal to a first preset detection difference value.

The second irrigation quantity adjusting mode is that the central control module uses a second preset irrigation adjusting coefficient to control the water pump to adjust the irrigation quantity of the farmland to a corresponding value; the second irrigation quantity adjusting mode meets the condition that the detection difference value is smaller than or equal to a second preset detection difference value and larger than the first preset detection difference value, and the first preset detection difference value is smaller than the second preset detection difference value.

The third irrigation quantity adjusting mode is that the central control module uses a third preset irrigation adjusting coefficient to control the water pump to adjust the irrigation quantity of the farmland to a corresponding value; the third irrigation quantity adjusting mode meets the condition that the detection difference value is larger than the second preset detection difference value.

Wherein, first predetermine and detect the difference and be 10%, second predetermine and detect the difference and be 20%, first predetermine irrigation adjustment coefficient and be 1.1, second predetermine irrigation adjustment coefficient and be 1.2, third predetermine irrigation adjustment coefficient and be 1.3.

The central control module acquires the current month and calculates the average precipitation of the current month in each year in the historical data under the condition of completing the adjustment of the irrigation quantity of the farmland, and the central control module determines the correction mode of the irrigation quantity of the farmland according to the average precipitation, wherein: the first correction mode is that the central control module corrects the irrigation quantity of the farmland to a corresponding value by using a first preset correction coefficient; the first correction mode meets the condition that the average precipitation is smaller than or equal to a first preset average precipitation.

The second correction mode is that the central control module corrects the irrigation quantity of the farmland to a corresponding value by using a second preset correction coefficient; the second correction mode satisfies that the average precipitation is smaller than or equal to a second preset average precipitation and larger than the first preset average precipitation, and the first preset average precipitation is smaller than the second preset average precipitation.

The third correction mode is that the central control module corrects the irrigation quantity of the farmland to a corresponding value by using a third preset correction coefficient; the third correction mode satisfies that the average precipitation amount is larger than the second preset average precipitation amount.

And (5) carrying out mixed irrigation on the farmland by using the reclaimed water and natural water.

Wherein, the optional natural water can be natural water fully mixed with fertilizer to finish irrigation of farmlands. The labor capacity of workers is effectively reduced, and the efficiency is improved.

The central control module comprehensively considers the humidity state of farmland soil and the precipitation condition of the past year when adjusting the irrigation quantity of the farmland, so that the application universality and the application adaptability of the farmland monitoring and early warning device are further improved while the farmland monitoring and early warning device is effectively applied to the actual conditions of various places.

The first preset average precipitation amount is 10mm, the second preset average precipitation amount is 50mm, the first preset correction coefficient is 1.2, the second preset correction coefficient is 1.1, and the third preset correction coefficient is 0.85.

Specifically, the central control module determines whether the soil state of the single detection area meets a soil secondary judgment mode of a preset standard according to the water level height acquired by the ultrasonic water level gauge arranged in the single detection area in the third soil judgment mode, wherein: the first soil secondary judgment mode is that the central control module judges that the soil state of a single detection area meets a preset standard, and marks the detection area as a qualified detection area; the first soil secondary judgment mode meets the requirement that the water level height obtained by the ultrasonic water level gauge is smaller than or equal to a first preset water level height.

The second soil secondary judgment mode is that the central control module preliminarily judges whether the soil state of a single detection area meets a preset standard or not, and judges whether the soil state meets the preset standard or not according to the topography condition of the single detection area; the second soil secondary judgment mode meets the requirement that the water level height obtained by the ultrasonic water level gauge is smaller than or equal to the second preset water level height and larger than the first preset water level height, and the first preset water level height is smaller than the second preset water level height.

The third soil secondary judging mode is that the central control module judges that the soil state of a single detection area does not meet a preset standard, and the opening degree of each irrigation canal gate in the irrigation canal around the single detection area is adjusted to a corresponding value according to the difference value between the water level height obtained by the ultrasonic water level gauge in the single detection area and the first preset water level height; the third soil secondary judgment mode meets the condition that the water level height obtained by the ultrasonic water level gauge is larger than the second preset water level height.

Wherein the first preset water level height is 11mm, and the second preset water level height is 23mm.

Specifically, the central control module acquires the height difference between the farmland topography high point in the data processing module and the topography high point in the single detection area in the second soil secondary judgment mode, and the central control module determines a correction mode for the first preset water level height according to the obtained height difference, wherein: the first height correction mode is that the central control module corrects the first preset water level height to a corresponding value by using a first preset height adjustment coefficient; the first height correction mode meets the condition that the height difference value is smaller than or equal to a first preset height difference value.

The second height correction mode is that the central control module corrects the first preset water level height to a corresponding value by using a second preset height adjustment coefficient; the second height correction mode meets the condition that the height difference value is smaller than or equal to a second preset height difference value and larger than the first preset height difference value, and the first preset height difference value is smaller than the second preset height difference value.

The third height correction mode is that the central control module corrects the first preset water level height to a corresponding value by using a third preset height adjustment coefficient; the third height correction mode satisfies that the height difference is greater than the second preset height difference.

The first preset height difference value is 20cm, the second preset height difference value is 50cm, the first preset height adjustment coefficient is 1.1, the second preset height adjustment coefficient is 1.2, and the third preset height adjustment coefficient is 1.3.

The larger the height difference between the farmland topography high point and the topography high point in the single detection area is, the steeper the local topography is, the faster the drainage speed is, so the larger the correction amplitude for the first preset water level height is.

Specifically, the central control module determines a gate adjustment mode for the opening degree of each irrigation canal gate in the irrigation canal around a single detection area according to the obtained water level difference value between the water level height obtained by the ultrasonic water level gauge in the single detection area and the first preset water level height and marks the difference value as a water level difference value, wherein: the first gate adjusting mode is that the central control module uses a first preset gate adjusting coefficient to adjust the opening of each irrigation canal gate in the irrigation canal around the single detection area to a corresponding value; the first gate adjusting mode meets the condition that the water level difference value is smaller than or equal to a first preset water level difference value.

The second gate adjusting mode is that the central control module uses a second preset gate adjusting coefficient to adjust the opening of each irrigation canal gate in the irrigation canal around the single detection area to a corresponding value; the second gate adjusting mode meets the condition that the water level difference value is smaller than or equal to a second preset water level difference value and larger than the first preset water level difference value, and the first preset water level difference value is smaller than the second preset water level difference value.

The third gate adjusting mode is that the central control module uses a third preset gate adjusting coefficient to adjust the opening of each irrigation canal gate in the irrigation canal around the single detection area to a corresponding value; the third gate adjusting mode meets the condition that the water level difference value is larger than the second preset water level difference value.

The first preset water level difference value is 11mm, the second preset water level difference value is 22mm, the first preset gate adjusting coefficient is 1.11, the second preset gate adjusting coefficient is 1.22, and the third preset gate adjusting coefficient is 1.33.

When the single detection area is preliminarily judged to have waterlogging, the central control module acquires the water level height in the single detection area, when the water level height of the single detection area is higher, the central control module corrects the judgment standard of the water level height according to the topography condition of a farmland, so that the tolerance of the water level height is increased when the topography height of the single detection area is higher, after finishing correcting the judgment standard, the central control module further judges according to the corrected judgment standard again, and when the water level height is too high, the opening degree of each irrigation channel gate in irrigation channels around the single detection area is high to cooperate with flood discharge, and the water pump is controlled to stop irrigation. The application universality and the adaptability of the farmland monitoring and early warning device are further improved while the detection areas are effectively monitored in a targeted manner according to the actual topography conditions of the detection areas.

Specifically, the central control module obtains the total content of each heavy metal of soil with preset quality in the farmland by using the heavy metal detector under the condition of completing the judgment of whether the soil state of each detection area in the farmland to be detected meets the preset standard, so as to determine whether the irrigation mode of the farmland to be detected meets the irrigation judgment mode of the preset standard according to the total content of each heavy metal, wherein: the first irrigation judging mode is that the central control module judges that the irrigation mode of the farmland to be detected meets a preset standard, and the water pump is controlled to continuously operate by using the current operation parameters; the first irrigation judgment mode meets the condition that the total content of each heavy metal is smaller than or equal to the total content of a first preset heavy metal.

The second irrigation judgment mode is that the central control module judges that the irrigation mode of the farmland to be detected does not meet a preset standard, and the proportion of the reclaimed water in the natural water is adjusted to a corresponding value according to the difference value between the total content of each heavy metal and the total content of the first preset heavy metal; the second irrigation judgment mode meets the condition that the total content of each heavy metal is smaller than or equal to the second preset heavy metal total content and larger than the first preset heavy metal total content, and the first preset heavy metal total content is smaller than the second preset heavy metal total content.

The third irrigation judgment mode is that the central control module judges that the irrigation mode of the farmland to be detected does not accord with a preset standard, and controls the alarm module to send out alarm information aiming at soil abnormality; the third irrigation judgment mode meets the condition that the total content of each heavy metal is larger than the total content of the second preset heavy metal.

A first water pump for controlling natural water to irrigate and a second water pump for controlling regenerated water to irrigate are respectively arranged in the process of conveying the natural water and the regenerated water to a farmland to be detected for irrigation, and the common output quantity of the first water pump and the second water pump is the irrigation quantity of the farmland; the central control module controls the first water pump and the second water pump to operate according to corresponding parameters so that the regenerated water and the natural water are output according to corresponding proportions, and therefore irrigation of farmlands is performed.

Wherein the total content of the first preset heavy metals is 65mg, and the total content of the second preset heavy metals is 120mg.

Specifically, the central control module calculates the difference between the total content of each heavy metal and the total content of the first preset heavy metal in the second irrigation judgment mode, marks the difference as a content difference, and determines an adjustment mode for the proportion of the reclaimed water to the natural water according to the obtained content difference, wherein: the first specific gravity adjusting mode is that the central control module uses a first preset specific gravity adjusting coefficient to adjust the specific gravity of the reclaimed water in natural water to a corresponding value; the first weight adjustment mode meets the condition that the content difference value is smaller than or equal to a first preset content difference value.

The second specific gravity adjusting mode is that the central control module uses a second preset specific gravity adjusting coefficient to adjust the specific gravity of the reclaimed water in the natural water to a corresponding value; the second specific gravity adjusting mode meets the condition that the content difference value is smaller than or equal to a second preset content difference value and larger than the first preset content difference value, and the first preset content difference value is smaller than the second preset content difference value.

The third specific gravity adjusting mode is that the central control module uses a third preset specific gravity adjusting coefficient to adjust the specific gravity of the reclaimed water in the natural water to a corresponding value; the third specific gravity adjusting mode meets the condition that the content difference value is larger than the second preset content difference value.

Wherein the first preset content difference is 16mg, the second preset content difference is 27mg, the first preset specific gravity adjustment coefficient is 0.9, the second preset specific gravity adjustment coefficient is 0.85, and the third preset specific gravity adjustment coefficient is 0.8.

Irrigation to farmland is that using natural water and regeneration water to synthesize and use, when the judgement to the soil state of each detection zone in the farmland is accomplished, acquire the heavy metal content in the farmland soil, and judge whether to adjust or send out the unusual alarm information of soil to natural water and regeneration water's use proportion according to the total content of each heavy metal that detects preset quality soil, send out corresponding alarm information to the specific condition of soil, effectively monitor the in service condition to regeneration water, in order to in time discover and take corresponding measure before the unusual emergence of soil is difficult to retrieve, further effectively improved wide and the adaptability of farmland monitoring early warning device application.

Specifically, whether the soil state of the single detection area meets the preset standard is judged according to the humidity acquired by the humidity detector in the detection area aiming at the single detection area central control module, and when the soil state of the single detection area is judged not to meet the preset standard, the water pump is controlled to adjust the irrigation quantity aiming at farmlands to the corresponding value according to the difference value of the first preset humidity and the humidity of the single detection area acquired by the humidity detector according to the judgment of the humidity of each detection area, or the opening degree of each irrigation canal gate in an irrigation canal adjacent to the single detection area is adjusted to the corresponding value according to the difference value of the humidity difference value and the preset humidity difference value.

Example 1

The data processing module takes an irrigation canal in a farmland as a limit, the humidity detector obtains that the humidity of a single detection area is 42%, the central control module calculates the average value of the humidity of each detection area to be 46% in the first soil judging mode, the humidity difference value is 4%, the central control module calculates the difference value between the first preset humidity 50% and the humidity 42% obtained by the humidity detector to be 8%, the central control module uses the first preset irrigation adjustment coefficient 1.1 to control a water pump to adjust the irrigation quantity of the farmland to a corresponding value, the central control module obtains that the current month is 5 months, calculates the average precipitation of the current month in each year in historical data to be 29mm, the central control module uses the second preset correction coefficient 1.1 to correct the irrigation quantity of the farmland to a corresponding value, obtains that the humidity of the single detection area is 51% for the single detection area, and the central control module marks the detection area as a qualified detection area.

Example 2

The data processing module uses irrigation canal in farmland as boundary to make farmland a plurality of detection areas, humidity detector obtains that the humidity of single detection area is 82%, and the ultrasonic water level gauge in the single detection area obtains that the water level height is 13mm, obtains that the altitude difference of farmland topography high point in the data processing module and the topography high point in the single detection area is 23cm, and the central control module uses second preset altitude adjustment factor 1.2 to revise first preset water level height 11mm to corresponding value 1.32, and the soil condition of single detection area is satisfied with the preset standard in the first preset water level height central control module after the water level height that the ultrasonic water level gauge obtained is less than or equal to the revision to mark this detection area as qualified detection area.

Example 3

When the central control module completes the judgment of whether the soil state of each detection area in the farmland to be detected meets the preset standard or not, the heavy metal detector is used for acquiring that the total content of each heavy metal in the farmland soil is smaller than or equal to 11mg and smaller than 65mg of the total content of the first preset heavy metal, the central control module judges that the irrigation mode of the farmland to be detected meets the preset standard, and the water pump is controlled to continuously use the current operation parameters for operation.

Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.

The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An irrigation device for agricultural planting, comprising:

the data processing module is used for storing data information of farmlands to be detected and dividing the farmlands into a plurality of detection areas according to distribution of irrigation channels in the farmlands; the data information comprises historical data of specific areas, trend of terrains, distribution of irrigation channels and precipitation in farmland areas;

the detection module comprises a plurality of detection mechanisms which are respectively embedded in each detection area, wherein each detection mechanism comprises a fixed rod fixed in the soil, and a humidity detector for acquiring the humidity of the soil is arranged outside the fixed rod; the upper end of the fixed rod is connected with an extension rod which extends upwards to the outside of the soil, and the top of the extension rod is provided with an ultrasonic water level gauge for acquiring the water level height in the detection area;

the central control module is respectively connected with the data processing module and corresponding parts in the detection module, and is used for judging whether the soil state of each detection area meets the preset standard according to the humidity acquired by the humidity detector, controlling the water pump to adjust the irrigation quantity of the farmland to a corresponding value by combining the humidity of each detection area and the historical data of the precipitation quantity in the farmland area when judging that the soil state of the single detection area does not meet the preset standard, or adjusting the opening of an irrigation channel gate in an irrigation channel adjacent to the single detection area to the corresponding value, and judging whether alarm information is sent according to the humidity of the single detection area acquired again by the humidity detector under the condition that the adjustment of the opening of the irrigation channel gate is completed;

2. The agricultural irrigation device according to claim 1, wherein the central control module periodically monitors each detection area, determines whether the soil status of the single detection area meets a preset standard according to the humidity acquired by the humidity detector provided in the detection area for the single detection area central control module, determines the treatment mode of the soil of the single detection area according to the humidity of each detection area under the condition that the soil status of the single detection area is determined not to meet the preset standard,

or under the condition that the soil state of the single detection area is primarily judged to be not in accordance with the preset standard, carrying out secondary judgment on whether the soil state of the single detection area is in accordance with the preset standard according to the water level height obtained by the ultrasonic water level gauge in the single detection area.

3. The agricultural irrigation device according to claim 2, wherein the central control module calculates a difference between an average value of the humidity of each detection area and the humidity of the individual detection area, and marks the difference as a humidity difference, and the central control module determines a treatment mode of the soil of the individual detection area based on the obtained humidity difference, comprising,

Controlling the water pump to adjust the irrigation quantity of the farmland to a corresponding value according to the difference value between the first preset humidity and the humidity of the single detection area acquired by the humidity detector,

or adjusting the opening of each irrigation canal gate in the irrigation canal adjacent to the single detection area to a corresponding value according to the difference value of the humidity difference value and the preset humidity difference value.

4. The agricultural planting irrigation device according to claim 3, wherein the central control module is provided with a plurality of adjustment modes for the opening degree of each irrigation canal gate in the irrigation canal around the single detection area according to the gate difference value, and the adjustment modes are different in adjustment amplitude for the opening degree of each irrigation canal gate in the irrigation canal around the single detection area;

the gate difference value is the difference value between the humidity difference value and a preset humidity difference value;

the central control module controls the humidity detector to reacquire the humidity of the single detection area under the condition that the opening degree of the irrigation canal gate is adjusted, and if the acquired humidity of the single detection area is smaller than or equal to the first preset humidity, the central control module controls the alarm module to send alarm information for blocking the irrigation canal;

5. The agricultural planting irrigation device according to claim 4, wherein the central control module is provided with adjustment modes for irrigation quantity of farmlands based on a difference value between a first preset humidity and a humidity of a single detection area obtained by the humidity detector, and adjustment ranges of the adjustment modes for irrigation quantity of farmlands are different;

the central control module acquires the current month and calculates the average precipitation of the current month in each year in the historical data under the condition of completing the adjustment of the irrigation quantity of the farmland, and is provided with a plurality of correction modes aiming at the irrigation quantity of the farmland based on the average precipitation, wherein the correction amplitudes of the correction modes aiming at the irrigation quantity of the farmland are different;

6. The agricultural irrigation device according to claim 5, wherein the central control module determines whether the soil state of the single detection area meets a preset standard based on the water level height obtained by the ultrasonic water level gauge provided in the single detection area, and performs a secondary determination as to whether the soil state meets the preset standard according to the topography of the single detection area when the soil state of the single detection area is preliminarily determined to meet the preset standard,

Or when the soil state of the single detection area is judged to be not in accordance with the preset standard, the opening degree of each irrigation canal gate in the irrigation canal around the single detection area is adjusted to a corresponding value according to the difference value between the water level height obtained by the ultrasonic water level gauge in the single detection area and the first preset water level height.

7. The agricultural planting irrigation device according to claim 6, wherein the central control module is provided with a plurality of correction modes aiming at the first preset water level height based on the height difference, and the correction amplitudes of the correction modes aiming at the first preset water level height are different;

the height difference value is obtained by acquiring the height difference value between the high point of the farmland to be detected and the high point of the farmland in a single detection area, which are stored in the data processing module;

8. The agricultural planting irrigation device according to claim 7, wherein the central control module is provided with a plurality of adjustment modes for the opening degree of each irrigation canal gate in the irrigation canal around the single detection area based on the water level difference, and the adjustment modes are different in adjustment amplitude for the opening degree of each irrigation canal gate in the irrigation canal around the single detection area;

9. The agricultural irrigation device according to claim 8, wherein the central control module obtains the total content of each heavy metal of the soil of the preset mass in the farmland by using the heavy metal detector under the condition that the determination of whether the soil state of each detection area in the farmland to be detected meets the preset standard is completed, determines whether the irrigation manner of the farmland to be detected meets the preset standard according to the total content of each heavy metal, and adjusts the proportion of the reclaimed water to the natural water to the corresponding value according to the difference between the total content of each heavy metal and the total content of the first preset heavy metal when the irrigation manner of the farmland to be detected is determined not to meet the preset standard,

Or when judging that the irrigation mode of the farmland to be detected does not meet the preset standard, controlling the alarm module to send out alarm information aiming at soil abnormality;

the central control module is provided with a plurality of adjustment modes aiming at the proportion of the reclaimed water to the natural water based on the difference value between the total content of each heavy metal and the total content of the first preset heavy metal, and the adjustment ranges of the adjustment modes aiming at the proportion of the reclaimed water to the natural water are different.

10. A method of using the agricultural planting irrigation device of any of claims 1-9, comprising,

judging whether the soil state of a single detection area meets preset standards according to the humidity acquired by a humidity detector in the detection area aiming at the single detection area central control module, and when judging that the soil state of the single detection area does not meet the preset standards, controlling a water pump to adjust the irrigation quantity aiming at farmlands to a corresponding value according to the difference value between the first preset humidity and the humidity of the single detection area acquired by the humidity detector according to the humidity judgment of each detection area, or adjusting the opening of each irrigation canal gate in an irrigation canal adjacent to the single detection area to the corresponding value according to the difference value between the humidity difference value and the preset humidity difference value;

When the soil state of the single detection area is preliminarily judged to be not in accordance with the preset standard according to the humidity acquired by the humidity detector arranged in the detection area, carrying out secondary judgment on whether the soil state of the single detection area is in accordance with the preset standard according to the water level height acquired by the ultrasonic water level gauge in the single detection area;

when the soil state of the single detection area is judged to be not in accordance with the preset standard for the second time, the opening degree of each irrigation canal gate in the irrigation canal around the single detection area is adjusted to a corresponding value according to the difference value between the water level height obtained by the ultrasonic water level gauge in the single detection area and the first preset water level height;

when the judging result is finished, marking the judging soil states meeting the preset standard as qualified detection areas, or when the adjustment of the detection areas is finished according to the judging result, judging whether the irrigation mode of the farmland to be detected meets the preset standard according to the total content of each heavy metal, and when the irrigation mode of the farmland to be detected is judged not to meet the preset standard, adjusting the proportion of the reclaimed water to natural water to a corresponding value according to the difference value between the total content of each heavy metal and the total content of the first preset heavy metal, or controlling an alarm module to send alarm information for soil abnormality;