KR20020061906A - Pumping Control Method of Water for Agriculture and System thereof - Google Patents

Abstract

PURPOSE: Provided are a control method of agricultural water supply and a system useful for the same to determine variation of water level by detecting water pressure and to control a pumping device to display the variation and/or automatically regulate activation/rest of the pumping device. CONSTITUTION: The control system comprises a water supply reservoir(10) driven by power application and having a pumping device(12) for introducing water through a water pipe; a controller(20) for adjusting the pumping device(12); a water pressure detection component(16) positioned near bottom portion of the reservoir(10) or in parallel to the pumping device(12) to determine water level in the reservoir(10); and a display(22) to show the detected value in a water pressure mode such as kg/cm¬2. The controller(20) has a setup portion to set the water level in the reservoir(10) and the on/off condition of the pumping device(12); a control portion to store and control input value from the setup portion; and a memory(29) to store determined volume of information data.

Description

Pumping Control Method of Water for Agriculture and System

The present invention relates to a method for controlling the intake of agricultural water and a system thereof, and more particularly, to a method and a system for controlling the water intake for agriculture by developing ground water.

Conventionally, agricultural water had to draw water from rivers, rivers or reservoirs to farmland, and in order to draw water, it was possible to install water in the corresponding farmland by installing farm roads, pipelines, or water pumps. . Such agricultural water may be used in abundance according to geographical conditions, but there was a problem in that agricultural water was not easily used when farmland and agricultural water were not in close proximity to the reservoir.

For this reason, conventionally, groundwater, such as wells or wells, is located in close proximity to farmland to allow water to be applied to the corresponding farmland. That is, as illustrated in FIG. 1, a water well 1 having a predetermined depth is developed, a water pump 2 is installed in the water well 1, and a commercial power source (AC 110-) is provided through the switching means 3 in the water pump 2. 220V) is connected, and the water pump 2 is connected to the water pipe (4). Water pipe 4 is to be connected to the farmland you want to intake directly or a separate pipe further to be intake in a long distance.

In this way, when the groundwater is developed and used for agricultural water, the user turns on the switching means 3 installed on the ground, and the commercial power drives the submersible pump 2, and the intake well 1 is driven by the submersible pump 2. The water accumulated in the inside is supplied and discharged through the water pipe 4. In addition, when the user blocks the discharge of agricultural water, the switching means 3 is turned off to stop the driving of the submersible pump 2. Instead of the submersible pump (2) may be used by connecting the ground vacuum pump. In addition, the water supply pipe 4 is equipped with an on-off valve 5 for adjusting the amount of raw water.

However, the user must turn on or off the switching means when the agricultural water of the intake well is collected or shut off.In addition, the raw water in the intake well has been lowered due to the low water level due to various conditions, namely, the depletion of groundwater due to drought or the sudden pumping. When not in use, the submersible pump could not be taken with the raw water and could only be driven by a sense of overpowering the submersible pump, and the current level in the well could not be known exactly. Therefore, the user was inconvenient to constantly monitor the water intake situation of the raw water.

In addition, there is only a function to turn on / off the operation of the submersible pump has a lot of difficulties in the normal intake of agricultural water.

The present invention has been made in order to solve the above problems, by installing a pressure sensing means in the water intake well for the intake of agricultural water to detect the water level in the well to control the operation of the underwater pump, the loss of the underwater pump due to excessive driving It is an object of the present invention to provide a method and a system for controlling the intake of agricultural water by visually displaying the water level in the intake well and automatically collecting the set amount of raw water.

1 is a configuration diagram of a device for withdrawal of conventional agricultural water,

2 is a block diagram of a control system for the intake of agricultural water according to the present invention,

3 is a block diagram showing the configuration of a controller of the present invention;

4 shows another embodiment of the display means;

5 is a flow chart related to the intake of agricultural water according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

10: water intake well 12: pumping means

14: water pipe 15: power line

16: pressure sensing means 17: signal line

20: controller 21: control unit

22, 23: display section 24: light emitting display means

25: setting unit 26: on / off switch

27: automatic switch 28: manual switch

29: memory unit 30: power supply unit

In order to achieve the above object, the present invention provides a step of installing a pressure sensing means and a pumping means in the formation of a water intake well for intake of raw water, selecting automatic or manual, and on-switch when the automatic is selected. Determining whether or not is inputted; setting and displaying the current level of the water well at the input of the on-switch by detecting the pressure sensing means; and starting pumping of the raw water simultaneously with setting the natural level. Detecting the level of the water intake well from the pressure sensing means after pumping the raw water; determining whether the raw water in the water well is fixed at the fixed water level while the raw water is being pumped; Stopping the driving of the pump, and determining whether the raw water in the intake well is a fixed water level after stopping the driving of the pumping means; Restarting the pumping means when the raw water in the intake well is at a fixed level, determining whether an off switch is input during intake of the raw water, and stopping the driving of the pumping means when there is an input of the off switch. It is characterized by including the step.

In addition, the present invention, in the intake well for intake of raw water, the pumping means is installed in the water well to pump the raw water; Pressure sensing means installed in the intake well and configured to sense pressure of raw water; A setting unit for setting an on / off state of the pumping means and the water level of the raw water in the well, a control unit for storing and controlling a setting value input from the setting unit, and calculating and controlling data input from the pressure sensing means; A memory unit for inputting and storing information data of a predetermined capacity, a display unit for visually displaying the water level in the water well with the control signal of the control unit, the commercial power applied to the pumping means under the control of the control unit and for its own driving A controller including a power supply unit for turning on or off driving power; It can be achieved by providing a water intake control system for agricultural water comprising a water pipe connected and installed to transport the raw water pumped by the pumping means to a predetermined position.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a configuration diagram of the intake control system for agricultural water according to the present invention, Figure 3 is a configuration of the controller of the present invention, Figure 4 shows another embodiment of the display unit.

The water intake well 10 for intake of raw water includes pumping means 12 for supplying raw water through the water supply pipe 14 by driving the applied power to supply raw water, and the intake well 10 may intake the raw water. In the present invention, the groundwater is withdrawn from the basement excavated to a predetermined depth.

The controller 20 for controlling the pumping means 12 of the water intake well 10 is configured, the controller 20 includes an electrical or electronic circuit for the control. In particular, the controller 20 preferably includes a microcomputer (or microprocessor) for controlling input and output signals. The power line 15 is connected to allow the controller 20 to supply or cut off power for controlling the driving of the pumping means 12.

The pumping means 12 is installed in the intake well 10 to pump raw water, and the pumping means 12 preferably applies an underwater pump installed in water, and may apply a vacuum pump installed on the ground. . The power supply line 15 is connected to the pumping means 12 so as to receive power applied through the controller 20.

The pressure sensing means 16 is installed in the intake well 10 to sense the pressure of the raw water, the pressure sensing means 16 is to detect the level of the water in the intake well 10, that is, the degree of groundwater leaking out. The pressure sensing means 16 is at the bottom of the water well 10, for example just below the pumping means 12, near the bottom of the water well 10, in parallel with the pumping means 12 or above the pumping means 12. To be installed in place. In addition, the pressure detecting means 16 detects the water pressure of the water intake well 10 and converts the detected value into an electrical signal and inputs it to the controller 20. At this time, the value detected by the pressure sensing means 16 is converted by the controller 20 and displayed in the form of water pressure (for example, kg / cm ² ) through the display unit 22.

The setting unit 25 included in the controller 20 is for setting the on / off state of the pumping means 12 and the water level of the raw water in the water well 10, and the setting unit 25 is used to control the controller 20. On / off switch 26 for driving and driving of the pumping means 12, automatic switch 27 for automatic driving by the control of the control unit 21 and manual switch for allowing the user to drive arbitrarily ( 28).

The control unit 21 included in the controller 20 stores and controls the setting value input from the setting unit 25, and calculates and controls the data input from the pressure sensing means 16, and controls the control unit 21. It is preferable to apply a microcomputer, and moreover, the control unit 21 converts the value detected from the pressure sensing means 16 to input to the display unit 22 or to turn on or off the power applied to the pumping means 12. .

The memory unit 29 included in the controller 20 is for inputting and storing information data having a predetermined capacity, and the memory unit 29 is for storing data input from the control unit 21 or outputting stored data. . As the memory unit 29, an EPROM, an EEPROM, or the like is preferably applied.

The display unit 22 visually displays the water level in the water extraction well 10 by the control signal of the control unit 21. The display unit 22 applies a 7-segment array having a predetermined number of digits so that the user can easily recognize a numerical value. To display. In addition, the display unit 22 also includes a plurality of light emitting display means 24 as shown in the display unit 23 of FIG. 4 to visually display the water level in the water extraction well 10. Further, the light emitting display means 24 may be made of a light emitting diode or the like, and may display colors according to the water level.

In addition, the power supply unit 30 supplies the driving power of the controller 20 and turns on or off the commercial power applied to the pumping means 12 under the control of the controller 21, and is applied to the power supply unit 30. And means for switching a commercial AC power source, and converting means for converting the AC power source AC into a DC power source DC.

Water pipe 14 is connected and installed to transport the raw water pumped from the pumping means 12 to a predetermined position, the water pipe 14 to the position to supply the raw water taken to farmland, such as rice fields or fields It is preferred to extend.

The water intake control method of the agricultural water of the present invention thus made will be described.

First, referring to the flowchart of FIG. 5, in step S10, the pressure sensing means 16 and the pumping means 12 are installed by the formation of the water intake well 10 for intake of raw water. In this case, the pressure sensing means ( 16) and the position of the pumping means 12 will vary depending on the depth of the water well (10). Further, in step S10, the fixed water level S3 (see Fig. 4) of the water extraction well 10 is set, and this water level value is stored in the memory unit 29. In addition, the memory unit 29 is also stored in the memory unit 29 for the exhaustion level S4. When the exhaustion level S4 is used, the groundwater may be damaged due to an extreme drought or an underground abnormality such as a change or blocking of the groundwater channel. It can be displayed even when it is exhausted so that the user can easily recognize it.

In step S11, the on / off switch 26 is switched to the on position when the controller 20 and the pumping means 12 are selected to be in an automatic state or a manual state, and then in an automatic state in step S12. Or it is determined whether the input. In addition, when the on / off switch 26 is input to the on position in step S13, the pressure sensing means 16 detects the current level of the water well 10 and inputs it to the controller 20. Control unit 21 converts the input value to set and display the natural water level S0 through the display unit 23.

Referring to the embodiment of the display unit of FIG. 4, the natural water level S0 is a position of raw water rising on the water well 10 in the state of a normal water well 10, and in the rainy season such as rainy season, the ground water is increased. Due to the natural water level (S0) will rise to the rainy season (S1), when the rainfall is small, such as spring will fall to the drought level (S2). This means that when the user inputs the on / off switch 26, the water level value for the water pressure of the water intake well 10 in the pressure sensing means 16 is set to the initial natural water level S0 or S1 or S2. Therefore, the natural water level S0 is not a fixed value, but is a fluid value because the current highest water level becomes a natural water level according to the change of the water level in the intake well 10.

In step S14, the pumping means 12 is started by the power applied to the pumping means 12 through the controller 20 at the same time as the setting of the natural water level S0, and the pumping of the raw water is started. In (), since the level of the water intake well 10 is continuously detected from the pressure sensing means 16 after the pumping of the raw water, the change of the level according to the detected value is displayed on the display unit 22 or 23.

At this time, the controller 21 of the controller 20 determines whether the water level in the water well 10 has reached the fixed water level S4 which has already been set in step S16. This may be the case when the pumping means 12 is continuously driven and the speed of water intake is faster than the speed at which the groundwater is filled.

Therefore, when it is determined in step S17 that the raw water is a fixed water level (S3), the control unit 21 stops the driving of the pumping means 12 by cutting off the power applied to the pumping means (12). This is to prevent the pumping means 12 from ingesting the raw water properly and being idle or overloaded.

In step S18, after the driving stop of the pumping means 12, it is determined whether the water level of the raw water detected by the pressure sensing means 16 in the intake well 10 is a natural water level. It is detected that the safety level (S0) initially set as being filled, and furthermore, in case the water level in the water well (10) does not become a natural water level (S0), the control unit 21 is initially set to the natural water level (S0) If the water level rises to the bottom of several cm to several m (for example, 1 cm to 9.9 m), it can be determined that the natural level.

Therefore, in step S19, when the raw water in the water well 10 is the natural water level S0, the power applied to the pumping means 12 is switched on under the control of the controller 20 to switch on the pumping means 12. You will be restarted, so the water will continue.

Further, in step S20, the pumping means 12 determines whether the on / off switch 26 is switched to the off position and is input during the intake of raw water, and at this time, the on / off switch 26 is turned to the off position. If it is not switched, the process returns to the step S15 and performs the following steps, but the pumping means 12 when the on / off switch 26 is switched to the off position at the request of the user in step S21. Stop and driving of the controller 20 is turned off.

Meanwhile, when the user selects the manual state in the step S11 of selecting the automatic state or the manual state, it is determined whether the on / off switch 26 is input to the on position in step S22, and the input is made into the on position. In this case, the pumping means 12 is started at the same time as the input of the on position of the on / off switch 26 in step S23 to start and withdraw the pumping. This is when the user operates manually at random rather than making the intake of the raw water into an automatic state, so that the raw water can be taken and blocked by the user's operation. Therefore, it is determined whether the on / off switch 26 is switched to the off position and input during the starting of the pumping means 12 in step S24, so that the input of the on / off switch 26 has been switched to the off position. In this case, the start of the pumping means 12 is stopped.

Even in the case of the manual operation, the water level in the water intake well 10 is continuously displayed through the display unit 22 or 23, so that the user can easily determine and manipulate the water intake state.

According to the present invention as described above, to automatically detect and display the position of the raw water in the intake well for the intake of agricultural water, so that the pumping means can be automatically driven according to the set water level, the above-described embodiment and It is not limited to the scope but may be easily modified, substituted and changed by those skilled in the art.

As described above, the water intake control method and system of the present invention are provided with a pressure sensing means and a pumping means in the intake well for the intake of agricultural water, respectively, and the pressure sensing means and the pumping means in the water level in the intake well by the control of the controller It is possible to control the start and stop of pumping means automatically by displaying the change of water and prevent the loss of the underwater pump due to excessive driving of the underwater pump, and by setting the natural and fixed water level according to the change of groundwater It provides convenience to users for water intake, and can significantly reduce costs by securing and taking in stable agricultural water, and easy control and maintenance, so it can be applied not only for agriculture but also for home and industrial use. The field of application has a wide range of features and effects.

Claims (9)

Installing a pressure sensing means and a pumping means to form a water well for intake of raw water and setting a fixed water level; Selecting an automatic state or a manual state, Determining whether an on / off switch is input to an on position when the automatic state is selected; Setting and displaying the current level of the water intake well at the natural water level by sensing the pressure sensing means when the on / off switch is input to the on position; Starting pumping raw water simultaneously with setting the natural water level; Sensing the level of the water intake well from the pressure sensing means after pumping the raw water; Determining whether the raw water in the well is at a fixed level while the raw water is pumped; Stopping the driving of the pumping means when the raw water is at a fixed water level; Determining whether the raw water in the water well is in the natural water level after stopping the pumping means; Restarting the pumping means when the raw water in the intake well is at the natural water level; Judging whether the on / off switch is input to the off position during the intake of raw water; Stopping the driving of the pumping means when the on / off switch is input to the off position. The method of claim 1, wherein when the manual state is selected in the step of selecting the automatic state or the manual state, Determining whether the on / off switch is input to the on position; Starting pumping by starting pumping means simultaneously with the input of the on / off switch to the on position; Determining whether an on / off switch has been switched to an off position and input while the pumping means is being started; And stopping the starting of the pumping means when there is an input to the off position of the on / off switch. The water intake of agricultural water according to claim 1, wherein a water level of several cm to several m or less than the current water level is set and stored at the natural water level when the current water level in the intake well detected by the pressure sensing means is set to the natural water level. Control method. The method of claim 1, wherein the natural water level is set to be a rainy season level due to an increase in rainfall or a drought level due to a decrease in rainfall. 2. The method of controlling water intake of agricultural water according to claim 1, wherein when the natural water level is set lower than the fixed water level, when the raw water in the intake well is detected, the intake of raw water is not available. In the water well to intake raw water, Pumping means installed in the water well to pump raw water; Pressure sensing means installed in the intake well and configured to sense pressure of raw water; A setting unit for setting the on / off state of the pumping means and the water level of the raw water in the well; A control unit for storing and controlling a setting value input from the setting unit and calculating and controlling data input from the pressure sensing means; A memory unit for inputting and storing information data of a predetermined capacity; A display unit for visually displaying the water level in the water well by the control signal of the controller; A controller including a power supply unit for turning on or off the commercial power applied to the pumping means and driving power for its own driving under the control of the controller; Intake control system for agricultural water, characterized in that comprises a water supply pipe connected and installed to transport the raw water pumped from the pumping means to a predetermined position. 7. The intake control system for agricultural water according to claim 6, wherein the display portion is any one of a seven-segment for numerically displaying the water level or a light emitting display means for displaying the state of the water level. 7. The intake control system for agricultural water according to claim 6, wherein the pressure sensing means is installed at one side of the upper end or the lower end of the pumping means. 7. The apparatus of claim 6, wherein the setting unit includes an on / off switch for starting and stopping the system and the pumping means, an automatic switch and a manual switch for operating the pumping means in an automatic state or a manual state. Intake control system for agricultural water.