KR20200076155A - Sub-surface drip irrigation control system - Google Patents

Abstract

The present invention relates to an underground irrigation control system. According to an embodiment of the present invention, provided is an underground drip irrigation control system, comprising: one or more first drip irrigation hoses buried in a first buried portion of a field and having holes formed to allow water to come in and out; one or more second drip irrigation hoses buried in a second buried portion of a field, and having holes formed to allow water to come in and out; a first distribution pipe connected to one end of the first drip irrigation hose; a first water collection pipe connected to the other end of the first drip irrigation hoses; a second distribution pipe connected to one end of the second drip irrigation hoses; a second water collection pipe connected to the other end of the second drip irrigation hoses; a water tank for supplying water to the first and second distribution pipes; a first irrigation valve connected to the first distribution pipe to open and close a connection with the water tank; a second irrigation valve connected to the second distribution pipe for opening and closing a connection with the water tank; a pump disposed between the first and second irrigation valves and the water tank; first and second sensors buried in the first and second buried portions, respectively, to measure moisture information of soil; and a control unit for controlling opening/closing of the irrigation valves and operation of the pump by determining whether to irrigate land according to information measured in each of the sensors.

Description

Underground drip irrigation control system {SUB-SURFACE DRIP IRRIGATION CONTROL SYSTEM}

The present invention relates to an underground drip irrigation control system.

For cropland (field) for growing field crops, drainage and irrigation (or irrigation) are important. In general, surface drainage and underground drainage are used for drainage. Surface drainage is a method of draining excess water in arable land after rainfall by using the slope of the surface. In order to promote surface drainage, there is a method of installing a drainage ditch on the ground. Underground drainage is a method that promotes underground drainage by removing residual water from the surface and gravity water in the soil after being drained into open ditch or culvert, and subsurface drainage. Is used.

The culvert is installed with the purpose of quickly discharging surface residual water and gravitational water in the ground that cannot be excluded by surface drainage only by burying materials such as soil pipe, PVC pipe, gravel, and rice straw in the ground to control soil moisture. It is facility to become.

In addition, as the irrigation method (or irrigation method), furrow irrigation, hose irrigation, drip irrigation, fountain irrigation, sprinkler irrigation, mist irrigation, underground irrigation, and the like are used.

Furrow irrigation is a method of supplying water to the furrows of arable land, and hose irrigation is a method of supplying water using a hose, which is mainly used in Korea. In addition, drip irrigation is a method of irrigating a small hole in a tube or plastic pipe and making a nozzle or a fine water outlet at the tip of a slender pipe connected to this hole so that water drips and seeps in small amounts. Fractional irrigation is irrigated by jetting water into the perforated tube, sprinkler irrigation is irrigated by spraying water using a nozzle, and mist irrigation is a method of irrigating water by fine washing with a mist device. Underground drip irrigation is a method of supplying water to the roots of crops with irrigation pipes buried underground.

On the other hand, in the case of a field, drainage and irrigation should be adjusted differently in consideration of soil conditions and cultivated crops, but these parts have not been reflected in the past.

An object of the present invention is to solve the problem of providing an underground irrigation control system capable of providing an optimal environment for growing crops by effectively controlling drainage and irrigation in consideration of the condition of arable land, cultivated crops, and weather conditions.

In order to solve the above problems, according to an aspect of the present invention, buried in the first buried portion of the field, one or more first drip irrigation hoses with holes formed to allow water in and out, and the second buried portion of the field One or more second drip irrigation hoses that are buried and have holes formed to allow water to enter and exit, a first distribution pipe connected to one end of the first drip irrigation hose, and a first connection to the other end of the first drip irrigation hose Supply water to the water collecting pipe, the second distribution pipe connected to one end of the second drip irrigation hose, the second collecting pipe connected to the other end of the second drip irrigation hose, and the first and second distribution pipes A water tank to be connected, a first irrigation valve connected to the first distribution pipe to open and close the connection to the water tank, and a second irrigation valve connected to the second distribution pipe to open and close the connection to the water tank, and Pumps disposed between the first and second irrigation valves and the water tank, and first and second sensors buried in the first and second buried portions to measure moisture in the soil, and information measured by each sensor An underground drip irrigation control system is provided that includes a control unit for determining whether irrigation is performed according to irrigation valve opening and closing and operation of the pump.

As described above, the underground irrigation control system related to at least one embodiment of the present invention controls the drainage and irrigation control by reflecting the condition of cultivated land, cultivated crops and weather conditions, and thus provides an optimal environment for growing cultivated crops. Can provide.

1 is a view showing an exemplary underground irrigation control system of the present application applied to a field having two buried parts.
2 is a diagram showing an exemplary underground irrigation control system of the present application applied to a field having one buried portion.

When there are multiple terrains with different slopes or compositional conditions depending on the location of the field, or when it is difficult to irrigate the entire area at once due to the large area of the field when considering the pump capacity or the spacing and flow rate of drip irrigation hoses, etc. , Set up the buried part of the field in several. The underground drip irrigation control system of the present invention is applied to a field in which a plurality of buried portions are set as described above. For example, the drip irrigation control system according to the present application is for individually controlling irrigation of several buried parts.

Hereinafter, an underground drip irrigation control system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In addition, the same or corresponding components are assigned the same or similar reference numbers regardless of the reference numerals, and duplicate descriptions thereof will be omitted. For convenience of description, the size and shape of each component shown are exaggerated or reduced. Can be.

The underground drip irrigation control system of the present application can be applied to a field having at least two buried parts. 1 is a view showing an exemplary underground drip irrigation control system of the present application applied to a field having two buried parts. Referring to FIG. 1, an underground irrigation control system related to an embodiment of the present invention includes one or more agents. 1 drip irrigation hose 100a, one or more second drip irrigation hoses 100b, first distribution pipe 200a, first collection pipe 300a, second distribution pipe 200b, second collection pipe 300b , Water tank 400, a first irrigation valve 500a, a second irrigation valve 500b, a pump 600, a first sensor 700a, a second sensor 700b, and a control unit 800.

Specifically, the underground irrigation control system includes one or more first drip irrigation hoses 100a that are buried in the first buried portion A of the field and have holes formed to allow water in and out. In addition, it is buried in the second buried portion (B) of the field, and includes at least one second drip irrigation hose (100b) is formed with a hole to allow the entry and exit of water. In addition, it includes a first distribution pipe (200a) connected to one end of the first drip irrigation hose (100a), and a first collection pipe (300a) connected to the other end of the first drip irrigation hose (100a). In addition, it includes a second distribution pipe (200b) connected to one end of the second drip irrigation hose (100b), and a second collecting pipe (300b) connected to the other end of the second drip irrigation hose (100b). In addition, it includes a water tank 400 for supplying water to the first and second distribution pipes (200a, 200b). In addition, a first irrigation valve 500a connected to the first distribution pipe 200a to open and close a connection with the water tank 400 and a connection to the water tank 400 connected to the second distribution pipe 200b It includes a second irrigation valve (500b) for opening and closing. In addition, the pump 600 is disposed between the first and second irrigation valves 500a and 500b and the water tank 400. In addition, the first and second buried parts (A, B) are respectively buried in the first and second sensors 700a, 700b for measuring moisture information of the soil. In addition, the control unit 800 controls the opening and closing of the valves 500a and 500b and the operation of the pump 600 by determining irrigation according to the information measured by the respective sensors 700a and 700b.

In the above, "water content of soil" means the moisture content in the ground measured by the embedded sensor.

1 is only an exemplary view of an underground irrigation control system applied to two buried parts, but is not limited thereto, and the underground irrigation control system of the present application may be simultaneously applied to three, four, or more buried parts have. For example, when there is a first buried portion (A), a second buried portion (B), and a third buried portion (not shown) having different inclined surfaces, the drip irrigation hose, distribution pipe, and water collecting pipe are independent lines. It can be applied to the first buried portion, the second buried portion, the third buried portion. Specifically, the first drip irrigation hose 100a, the first distribution pipe 200a and the first collecting pipe 300a are applied to the first buried portion A, and the second drip irrigation hose 100b and the second The distribution pipe 200b and the second collection pipe 300b are applied to the second buried portion B, and the third drip irrigation hose (not shown), the third distribution pipe (not shown), and the third collection pipe (not shown) City) may be applied to the third buried part (not shown).

As shown in FIG. 1, the drip irrigation hose, the distribution pipe, and the water collecting pipe respectively applied to the two buried portions may have independent lines from each other. The buried portion may have different levels of water repair or drainage depending on the condition of the soil. The state of the soil may correspond to a slope angle of the soil, a composition state of the soil, and the like. Underground irrigation control system according to the present application, by applying the drip irrigation hoses, distribution pipes and water collecting pipes with independent lines as described above separately to two buried portions, simultaneously controlling effective drainage and irrigation of buried portions with different soil conditions can do.

The first drip irrigation hose 100a and the second drip irrigation hose 100b may be installed in the first and second buried portions A and B, respectively, at a constant depth and interval. The depth and spacing may be appropriately selected in consideration of the size of the buried portion, the type of cultivated crop, and the like.

In the first and second drip irrigation hoses 100a and 100b, water stored in the water tank 400 flows in, and when the pressure in the drip irrigation hose rises above a certain level by the introduced water, water is supplied to the buried side. Can supply. On the other hand, when the external pressure of the drip irrigation hoses 100a and 100b rises above a certain level, that is, when the moisture contained in the soil is more than necessary (excess water), the moisture in the soil drips through the hole. It may be introduced into (100a, 100b), and may be drained.

The first and second distribution pipes 200a and 200b have independent lines from each other, and are respectively connected to one end of the first and second drip irrigation hoses 100a and 100b, so that the water stored in the water tank 400 is first And second drip irrigation hoses 100a and 100b, respectively.

The first and second collecting pipes 300a and 300b have independent lines from each other and are connected to the other ends of the first and second drip irrigation hoses 100a and 100b, and serve to drain excess water from the buried portion to the outside. The other ends of the first and second collecting pipes 300a and 300b may be connected to a drainage channel, and excess water may be drained to the drainage channel through the first and second collecting pipes 300a and 300b.

Specifically, the first and second collecting pipes 300 may include first and second drain valves 310a and 310b, respectively. The first and second drain valves 310a and 310b are provided to control the amount of excess water that is drained toward the drainage channel, and the control unit 800 determines whether to drain or not according to the information measured by each sensor, and then the drain valve The opening and closing can be adjusted. For example, when the moisture of the first buried portion (A) is greater than the required amount of moisture in the growth of the crop, the controller 800 determines the drainage of the first buried portion (A), and the first drainage valve (310a) Can be opened. When the first drain valve 310a is opened, excess water of the first buried portion may be drained out through the hole of the drip irrigation hose 200a. The controller 800 may determine drainage for removing foreign substances present in the drip irrigation hose 200a other than removing excess water. For example, as the drip irrigation hose 200a is restricted during use during a non-cultivation period, such as in winter, foreign substances may accumulate inside the drip irrigation hose 200a. After the non-cultivation period has passed, the control unit 800 may determine the drainage before using the drip irrigation hose to remove foreign substances accumulated in the drip irrigation hose 200a. In addition, if there is too much moisture in the second buried portion (A) or if it is necessary to remove foreign substances, the draining procedure may be equally applied.

The water tank 400 supplies water to the first and second distribution pipes 200a and 200b. The water tank can be used to pump and store groundwater using a groundwater pump. The groundwater stored in the water tank 400 may be individually adjusted to the inflow amount flowing into the distribution pipes 200a and 200b through the first and second irrigation valves 500a and 500b.

The first and second irrigation valves 500a and 500b may be separately provided in the first and second distribution pipes 200a and 200b having independent lines, respectively. The opening and closing of the first and second irrigation valves 500a and 500b may be controlled by the control unit 800, but is not limited thereto, and may be manually adjusted by an operator.

The water tank 400 may be formed by extending a discharge pipe 200c for discharging stored water to a predetermined length. The discharge pipe 200c may be branched at one end to form first and second distribution pipes 200a and 200b having independent lines. The above-described pump 600 may be disposed in the discharge pipe 200c. Unless otherwise stated herein, the lines of the first and second distribution pipes 200a and 200c are interpreted to include the discharge pipe 200c.

The first and second sensors 700a and 700b may be one or plural. When the first and second sensors are one, they may be buried at representative points of the buried part, respectively. The representative point may be selected in consideration of soil conditions and cultivated crops. On the other hand, in the case of a plurality, it is buried at an arbitrary point in the buried part, and the controller can control the opening and closing of the valve and the operation of the pump by calculating the average value of the moisture information measured by the plurality of sensors.

The control unit 800 may determine whether irrigation is performed in consideration of moisture information measured by a sensor and a growth state of a crop. The control unit 800 determines irrigation when the moisture in the buried land is insufficient compared to the amount of moisture required by the growth of the crop, and opens the corresponding irrigation valves 500a and 500b so as to supply water to the buried land having insufficient moisture, and pump ( 600).

In one example, the underground drip irrigation system may include one or more weather sensors for measuring weather information. The weather information may be, for example, temperature, relative humidity, wind direction, wind speed, insolation, precipitation, and evapotranspiration. The control unit may determine irrigation by considering weather information measured by the weather sensor.

In one embodiment, the controller 800 may set the soil moisture threshold according to the depth in advance, and compare the set soil moisture threshold with the moisture information of the soil measured by the sensor to determine irrigation. When the moisture content of the soil measured by the sensor is less than the set moisture threshold, the control unit 800 opens the irrigation valve 500 and operates the pump 600 to control water to be supplied to the drip irrigation hose 100. Can.

In one embodiment, the moisture threshold of the soil may be set based on the demand for the cultivated crop and the condition of the soil. The control unit 800 may provide an optimal environment for growing crops by controlling opening and closing of the valve and operation of the pump 600 based on the moisture threshold of the set soil.

The first and second distribution pipes 200a and 200b may further include a measurement sensor 210 that measures a flow rate. Specifically, the pressure sensor may be provided in the discharge pipe 200c. The measurement sensor 210 may measure the flow rate flowing into the line when water stored in the water tank 400 is discharged to the first and second distribution pipes 200a and 200b through the discharge pipe 200c. The measurement sensor may be located between the pump 600 and the first and second irrigation valves 500a and 500b. The control unit 800 may control the irrigation amount based on the flow rate measured by the measurement sensor 210. The irrigation amount may be controlled through opening and closing of the first and second irrigation valves 500a and 500b and operation of the pump 600.

In one example, the first and second distribution pipes 200a and 200b may further include a pressure sensor 220 that measures hydraulic pressure. Specifically, the pressure sensor may be provided in the discharge pipe 200c. The pressure sensor 220 may be a sensor that measures the pressure applied to the line when water stored in the water tank 400 is discharged through the discharge pipe 200c to the first and second distribution pipes 200a and 200b. have. The pressure sensor 220 may be located between the pump 600 and the measurement sensor 210. The control unit 800 may control the irrigation amount based on the hydraulic pressure measured by the pressure sensor 220. The irrigation amount may be controlled through opening and closing of the first and second irrigation valves 500a and 500b and operation of the pump 600.

The underground irrigation control system may further include a water level sensor that measures the water level of the water tank 400. In addition, the controller 800 may compare the water level of the water tank measured by the water level sensor with a reference water level, and selectively supply ground water to the water tank 400 using the ground water pump 900. The reference water level is an index indicating the minimum content of water in the water tank 400 required for proper irrigation. When the water level of the water tank 400 is less than the reference level, the ground water pump 900 operates to supply the ground water to the water tank 400. The ground water pump 900 may be operated by the control unit 800. As described above, by adjusting the water level of the water tank 400 to a reference level or higher, proper irrigation can be effectively performed.

The present application also relates to an underground drip irrigation control system applied to a field having one buried portion. The underground irrigation control system includes a drip irrigation hose, a distribution pipe, a water collecting pipe, a water tank, a pump, a sensor, and a control unit applied to the first buried portion of the field described above, and the related descriptions are duplicated with the foregoing It will be omitted below.

2 is a diagram showing an exemplary underground irrigation control system of the present application applied to a field having one buried portion.

Referring to FIG. 2, the underground irrigation control system includes one or more drip irrigation hoses 100 buried in a buried portion of a field and formed with holes to allow water to enter and exit. And a distribution pipe 200 connected to one end of the drip irrigation hose 100. And a water collecting pipe 300 connected to the other end of the drip irrigation hose. It includes a water tank 400 for supplying water to the distribution pipe (200). It includes an irrigation valve 500 that is connected to the distribution pipe 200 to open and close the connection with the water tank 400. In addition, it includes a pump 600 disposed between the irrigation valve 500 and the water tank. In addition, it includes one or more sensors 700 buried at any point in the buried portion and provided to measure moisture information of the soil. It includes a control unit 800 for determining whether irrigation according to the information measured by the sensor 700 to control the opening and closing of the irrigation valve 500 and the operation of the pump 600.

In addition, the underground drip irrigation system may include the above-described flow sensor and pressure sensor. Descriptions related thereto will be omitted below. The preferred embodiments of the present invention described above are disclosed for the purpose of illustration, and those skilled in the art having various knowledge of the present invention will be able to make various modifications, changes, and additions within the spirit and scope of the present invention. And additions should be considered to fall within the scope of the following claims.

100: drip irrigation hose
200: distribution pipe
210: measurement sensor
220: pressure sensor
300: catchment pipe
310: drain valve
400: water tank
500: irrigation valve
600: pump
700: sensor
800: control
900: groundwater pump

Claims (11)

One or more first drip irrigation hoses buried in the first buried portion of the field and having holes formed to allow water to enter and exit;
One or more second drip irrigation hoses buried in the second buried portion of the field and having holes formed to allow water to enter and exit;
A first distribution pipe connected to one end of the first drip irrigation hose;
A first collecting pipe connected to the other end of the first drip irrigation hose;
A second distribution pipe connected to one end of the second drip irrigation hose;
A second collecting pipe connected to the other end of the second drip irrigation hose;
A water tank supplying water to the first and second distribution pipes;
A first irrigation valve connected to the first distribution pipe to open and close a connection with a water tank;
A second irrigation valve connected to the second distribution pipe to open and close a connection with a water tank;
A pump disposed between the first and second irrigation valves and a water tank;
First and second sensors respectively buried in the first and second buried portions to measure soil moisture information; And
Underground drip irrigation control system comprising a control unit for controlling the opening and closing of the irrigation valve and the operation of the pump by determining whether or not irrigation according to the information measured by each sensor. The underground drip irrigation control system of claim 1, further comprising one or more weather sensors for measuring weather information. The underground drip irrigation control system of claim 1, wherein the control unit pre-sets the soil moisture threshold according to the depth, and compares the set soil moisture threshold with the moisture information of the soil measured by the sensor to determine irrigation. The underground drip irrigation control system according to claim 3, wherein the soil moisture threshold is set based on the demand for cultivated crops and the condition of the soil. The method of claim 1, wherein the first and second distribution pipes further include a measurement sensor for measuring the flow rate,
The control unit is an underground drip irrigation control system that controls the irrigation amount based on the flow rate measured by the measurement sensor. The method of claim 1, wherein the first and second distribution pipes further include a pressure sensor for measuring the hydraulic pressure,
The control unit is an underground drip irrigation control system for controlling irrigation amount based on hydraulic pressure measured by a pressure sensor. The method of claim 1, further comprising a water level sensor for measuring the water level of the water tank,
The control unit compares the water level of the water tank measured by the water level sensor with a reference water level, and an underground drip irrigation control system that selectively supplies ground water to the water tank using a ground water pump. The underground drip irrigation control system according to claim 7, wherein when the water level of the water tank is less than the reference level, the ground water pump is operated to supply ground water to the water tank. The method of claim 1, wherein the first and second collecting pipes include first and second drain valves, respectively.
The control unit determines whether or not to drain according to the information measured by each sensor, to control the opening and closing of the drain valve. The underground drip irrigation control system of claim 9, wherein when the drain valve is opened, excess water in the buried portion is drained out through the hole of the drip irrigation hose. One or more drip irrigation hoses buried in the buried portion formed in the field and having holes formed to allow water to enter and exit;
A distribution pipe connected to one end of the drip irrigation hose;
A water collecting pipe connected to the other end of the drip irrigation hose;
A water tank supplying water to the distribution pipe;
An irrigation valve connected to the distribution pipe to open and close a connection with a water tank;
A pump disposed between the irrigation valve and the water tank;
One or more sensors buried at any point of the buried part and configured to measure soil moisture information; And
Underground drip irrigation control system comprising a control unit for determining whether or not irrigation according to the information measured by the sensor to control the opening and closing of the irrigation valve and the operation of the pump.

Images