JPH11220962A - Automatic control system for paddy field water level - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic control system of extremely high practicability for the water level of the paddy field that can maintain the water level in the paddy field by the computer-aided automatic control. SOLUTION: The information of the water level detection by the water level sensor 1 is input to a personal computer 4 for the control by means of a radio transmission unit 2 to compare the level detection information with the water level information in the controlling program. When the detected value is lower than the prescribed value of the water level information in the controlling program, the water-supplying control valve 5 that is set to the water- supplying outlet at the paddy field 3 is opened to feed water until the water level attains the prescribed value according the water level-controlling program and the water-feeding valve is closed at the time when the water level reaches the prescribed value in the paddy field 3. In the case where the water level detected value is higher than the prescribed value, the drain valve 6 set at the drain gate of the paddy field 3 is opened to drain the water until the water level falls down to the prescribed value according to the control program and the drain valve 6 is closed, when the water level in the paddy field 3 drops down to the prescribed value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paddy water level automatic control system.

[0002]

2. Description of the Related Art
In order to maintain the water level in the paddy field optimally, when the water level in the paddy field decreases, water is artificially supplied from the water supply port, and when the water level in the paddy field becomes optimal, the water supply is stopped, When the water level in the paddy field is too high, the water is artificially discharged from the drain port, and the discharge of water is stopped when the water level in the paddy field reaches an optimum state.

However, as described above, in order to maintain the water level in the paddy field to be always in an optimum state, supply and stop of water into the paddy field and discharge and stop of water from the paddy field are frequently performed. It is necessary, water level management of rice fields is very difficult, it is actually difficult to ensure frequent water level management, and it is usually not always possible to manage the water level of rice fields to be in the optimum state This is the actual situation.

Further, when the water level of a paddy field suddenly rises due to torrential rain, etc., it is not possible to immediately drain water from the paddy field, so that the water level of the paddy field cannot be maintained in an optimum state. Even if the water level in the paddy field drops abnormally due to abnormal water leakage from the paddy field at night, etc., water cannot be supplied to the paddy field immediately, and the water level in the paddy field should be maintained in an optimal state. Can not.

[0005] In addition, when the supply and stop of water to the paddy and the discharge and stop of water from the paddy are frequently performed so that the water level in the paddy is maintained at an optimum water level as much as possible, the water level management becomes extremely difficult. In addition to the labor required, the movement of water in the paddy field frequently occurs, and the water flow accompanying the movement of the water exerts a mechanical impact on the paddy rice, adversely affecting the growth of the paddy rice.

Further, in order to save labor for water level management, there is a case where so-called flushing of water is performed. In this case, excess water flows out from the drain port, resulting in wasteful use of water, and chronic Nowadays, when water shortages are occurring and water conservation is being shouted, wasteful use of water must be avoided.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and is a highly practical rice field which can always maintain the water level in the rice field in an optimum state by automatic control by a computer. An object of the present invention is to provide an automatic water level control system.

[0008]

The gist of the present invention will be described with reference to the accompanying drawings.

A water level sensor 1 for detecting a water level is provided in a paddy field 3, and water level detection information of the water level sensor 1 is input to a control personal computer 4 by a wireless transmission device 2, and the control personal computer 4 sends the water level in the paddy field 3 in advance. A control program created for controlling the water level to a predetermined water level is input, and the water level information of the control program is compared with the water level detection information input to the control personal computer 4, and the value of the water level detection information is controlled. If the water level is lower than the predetermined value according to the water level information of the control program, the water supply control valve 5 provided at the water supply port of the paddy field 3 is opened to supply water until the water level of the paddy field 3 reaches the predetermined value according to the water level information of the control program. When the water level of the paddy field 3 reaches a predetermined value, the control information is supplied to the water supply control valve 5 provided at the water supply port of the paddy field 3 by the control personal computer 4 via the wireless transmission device 2 so as to close the water supply control valve 5. When the value of the transmitted water level detection information is greater than a predetermined value based on the water level information of the control program, the drainage control valve 6 provided at the drainage port of the paddy field 3 is opened, and the water level of the paddy field 3 is adjusted to the water level of the control program. Drainage is performed until a predetermined value according to the information is reached, and when the water level of the paddy field 3 reaches the predetermined value, the drainage control valve 6 is closed by the control personal computer 4 through the wireless transmission device 2 to the drain port of the paddy field 3. The present invention relates to a paddy water level automatic control system which transmits control information to a provided drainage control valve 6.

In addition, the water level information of the control program is set centering on the optimum water level, and the water amount is larger than the upper limit water level at normal time when the water amount is larger than the optimum water level and the upper limit water level at the time of abnormality such as heavy rain. The upper and lower water levels are set by setting the upper and lower water levels and the lower water level lower than the optimum water level during normal operation and the lower water level lower than the lower water level under abnormal conditions such as abnormal drying. The water supply control valve 5 is opened to supply water into the paddy field 3 when the water level becomes below. When the water level in the paddy field 3 reaches the upper limit water level, the water supply control valve 5 is closed, and the water level in the paddy field 3 reaches the upper upper limit water level. The paddy water level according to claim 1, wherein the drainage control valve 6 is opened to drain the water in the paddy field 3, and the drainage control valve 6 is closed when the water level in the paddy field 3 reaches the lower limit water level. It relates to an automatic control system.

[0011] In addition, the upper limit water level is set at an upper limit value of the water level in which if the water level exceeds this level, the growth of the rice plant is adversely affected in order to grow the rice satisfactorily. The setting of the lower limit water level is set at the lower limit value of the water level, in which if the water level is below this level, the growth of the paddy rice will be adversely affected. When supplying water, set the upper limit water level in consideration of the water level difference from the upper upper water level so that the water level does not reach the upper upper water level immediately even if it rains lightly,
When the water in the paddy field 3 is drained, the lower limit water level is set in consideration of a difference between the lower limit water level and the lower limit water level such that the water level does not reach the lower limit water level immediately due to a normal dry state due to clear weather or the like. 3. The automatic rice paddy water level control system according to claim 2, wherein

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

A control program created for controlling the water level in the paddy field 3 to a predetermined water level is input to the control personal computer 4, and the water level information of the control program and the paddy field 3 input to the control personal computer 4 are input. If the value of the water level detection information is smaller than a predetermined value based on the water level information of the control program by comparing the water level detection information within the water field, the water supply control valve 5 provided at the water supply port of the paddy field 3 is opened to open the water field. The water supply control valve 5 is closed until the water level of the paddy field 3 reaches a predetermined value according to the water level information of the control program, and the water supply control valve 5 is closed when the water level of the paddy field 3 reaches the predetermined value. The operation can be automatically controlled by a control program input to the control personal computer 4, and the water level in the paddy field 3 is automatically set to a predetermined value without water supply from the water supply port as in the conventional case. The water level can be automatically controlled so that the water level quickly reaches a predetermined value even if the water level suddenly drops without spending a great deal of effort on water level management. 3 can always be maintained in an optimum state by automatic control by a computer, and when the value of the water level detection information is larger than a predetermined value according to the water level information of the control program, the water outlet in the paddy field 3 The drainage control valve 6 provided is opened to drain water until the water level of the paddy field 3 reaches a predetermined value according to the water level information of the control program, and the drainage control valve 6 is closed when the water level of the paddy field 3 reaches the predetermined value. Therefore, the opening / closing operation of the drainage control valve 6 can be automatically controlled by the control program input to the control personal computer 4, and the drainage control valve 6 can be automatically controlled without manually draining from the drainage port as in the related art. Water The water level in 3 can be managed to be a predetermined value, and the water level can be automatically adjusted to a predetermined value even if the water level suddenly increases without spending a great deal of effort on water level management. The water level in the paddy field 3 can be constantly maintained in an optimum state by automatic control by a computer.

Therefore, the water level in the paddy field 3 can be automatically detected by the control personal computer 4, and the opening and closing of the water supply control valve 5 and the drainage control valve 6 can be automatically controlled. The water level in the paddy field 3 can always be maintained in an optimum state by automatic control by a computer without spending a great deal of effort on water level management in the inside.

Further, the water level information of the control program is set centering on the optimum water level, the upper limit water level where the amount of water is larger than the optimum water level, the upper limit water level where the amount of water is larger than the upper limit water level, and the water amount higher than the optimum water level. The water supply control valve 5 is opened and water is supplied to the paddy field 3 when the water level in the paddy field 3 becomes equal to or lower than the lower and lower water level. When the water level reaches the upper limit water level, the water supply control valve 5 is closed, so that the upper limit water level (corresponding to the upper upper limit water level of the present invention) and the lower limit water level (corresponding to the upper limit water level of the present invention) are respectively raised and lowered around the optimum water level as in the related art. (Equivalent to the lower limit water level of the present invention), and water is supplied when the water level of the paddy field reaches the lower limit water level, and the water supply is stopped when approaching the upper limit water level. Water supply After sealed, will soon reach the upper limit water level water level water level rises due to rain, after the water supply,
Although the situation is that water is drained immediately, the amount of water supplied from the irrigation water increases, and the water in the paddy field is drained more than necessary, and it is not possible to save water for the irrigation water and use it efficiently. In the present invention, the water supply control valve 5 is closed when the water level in the paddy field 3 reaches the upper limit water level instead of the upper upper limit water level. Therefore, even if rain falls during the water supply, the water level rises immediately. Without reaching the upper water level,
After the water supply, there is no immediate drainage, the water from the water is not used more than necessary, and the water in the paddy field 3 is not drained more than necessary. And water can be efficiently used.

Further, when the water level in the paddy field 3 reaches the upper upper limit water level, the drain control valve 6 is opened to drain the water in the paddy field 3,
Since the drainage control valve 6 is closed when the water level in the paddy field 3 reaches the lower limit water level, the upper and lower water levels are respectively set up and down around the optimum water level as in the prior art, and the water level of the paddy field is set. Drains when the water reaches the upper limit water level, compared to the case where the drainage is stopped when approaching the lower water level, for example, if the clear weather continues at the time of drainage, after stopping the drainage,
The water level immediately drops due to the dry weather, and the water level reaches the lower limit water level.After draining, water is immediately supplied, and the amount of drainage from the paddy field increases, and the amount of water supplied from the irrigation water increases more than necessary. However, the water cannot be used efficiently by saving water, but in the present invention, the drainage control valve 6 is closed when the water level in the paddy field 3 reaches the lower limit water level instead of the lower lower limit water level. For example, even if clear weather continues at the time of drainage, the water level does not immediately reach the lower lower limit water level, and after drainage, the situation of immediate water supply does not occur,
Without using more water than necessary from the water supply,
The water in the paddy field 3 is not drained more than necessary, and the water for use can be saved and used efficiently.

Therefore, even when the water level in the paddy field 3 fluctuates rapidly, the opening and closing of the water supply control valve 5 and the drainage control valve 6 can be minimized, and the water level can be set to the upper limit value (upper limit). The opening and closing of the water supply control valve 5 or the drainage control valve 6 can be automatically controlled quickly without exceeding the lower limit value (lower and lower limit water level) or the lower limit value (lower and lower limit water level). By minimizing the frequency of opening and closing of the paddy, the supply and stop of water into the paddy 3 and the discharge and stop of water from the paddy 3 can be controlled in a very stable state. It is possible to eliminate the frequent occurrence of the movement of water in 3, and to alleviate the mechanical impact of the water flow caused by the movement of the water on the rice, thereby reducing the factors that adversely affect the growth of the rice.

Further, by minimizing the frequency of opening and closing of the water supply control valve 5 and the drainage control valve 6, the amount of water drained from the drainage port can be minimized, and water is supplied from the water supply port. Since the amount of water can be reduced to the minimum necessary and water can be saved and used without wasting water, use this system in recent years when chronic water shortages are occurring. By doing so, you can save water very effectively.

The upper and lower water levels are set at the upper and lower water level limits, in order to grow rice satisfactorily, that if the water level exceeds this level, the growth of the rice plants will be adversely affected. Was set at the lower limit of the water level, which would adversely affect the growth of paddy rice when the water level was below this level in order to grow rice well. Therefore, the water level of paddy field 3 was always the upper limit and lower limit. Since the water level is controlled to a value between these values, the water level of the paddy field 3 can always be maintained at a water level favorable for the growth of paddy rice.

Further, when the water is supplied to the paddy field 3, the upper limit water level is set in consideration of a water level difference from the upper upper limit water level such that the water level does not immediately reach the upper upper limit water level even if light rain falls. Set the water level and set the lower water level. When draining the water from the paddy field 3, consider the water level difference from the lower and lower water levels that the water level does not reach the lower and lower water levels immediately due to normal dry conditions such as sunny weather. To set the lower limit water level.
It is not necessary to frequently open and close the drainage control valve 6, and it is possible to control the supply and stop of water into the paddy field 3 and the discharge and stoppage of water from the paddy field 3 in a very stable state. 3 can be controlled so that the movement of the water within 3 does not occur frequently.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A paddy water level automatic control system according to one embodiment of the present invention will be described below with reference to the drawings.

In this embodiment, as shown in FIG. 1, a water level sensor 1 for detecting the water level in the paddy field 3 is provided in the paddy field 3,
The water level detection information of the water level sensor 1 is input to the control personal computer 4 via the wireless transmission device 7 attached to the control personal computer 4 by the wireless transmission device 2, and the water level in the paddy field 3 is predetermined by the control personal computer 4. The control program created for controlling the water level is input, and the water level information of the control program is compared with the water level detection information input to the control personal computer 4, and the value of the water level detection information is determined by the control program. When the water level is lower than the predetermined value according to the water level information, the water supply control valve 5 provided at the water supply port of the paddy field 3 is opened to supply water until the water level of the paddy field 3 reaches the predetermined value according to the water level information of the control program. When the water level reaches a predetermined value, the control personal computer 4 closes the water supply control valve 5 from the wireless transmission device 7 attached to the control personal computer 4 to the water supply control provided at the water supply port of the paddy field 3. 5, the control information is transmitted via the wireless transmission device 2, and when the value of the water level detection information is larger than a predetermined value according to the water level information of the control program, the drain control valve 6 provided at the drain of the paddy field 3 is operated. The control personal computer 4 controls to open and drain until the water level of the paddy field 3 reaches a predetermined value according to the water level information of the control program, and close the drain control valve 6 when the water level of the paddy field 3 reaches the predetermined value. Personal computer 4
The control information is transmitted via the wireless transmission device 2 from the wireless transmission device 7 attached to the control device to the drain control valve 6 provided at the drain of the paddy field 3.

The setting of the water level information of the control program is centered on the optimum water level, and the upper and lower water levels are higher than the optimum water level at normal times and higher than the upper water levels at abnormal times such as heavy rain. Set the water level and the lower limit water level lower than the optimum water level during normal times and the lower limit water level lower than the lower limit water level during abnormal times such as abnormal drying, and the water level in the paddy field 3 falls below the lower lower limit water level When the water supply control valve 5
Is opened to supply water into the paddy field 3, and when the water level in the paddy field 3 reaches the upper limit water level, the water supply control valve 5 is closed. When the water level in the paddy field 3 reaches the upper upper limit water level, the drainage control valve 6 is opened. To drain the water in the paddy field 3 and close the drain control valve 6 when the water level in the paddy field 3 reaches the lower limit water level.

The upper limit water level is set at an upper limit value of the water level, where if the water level exceeds this level, the growth of the rice plants will be adversely affected. The setting of the lower limit water level is set at the lower limit value of the water level, in which if the water level is below this level, the growth of the paddy rice will be adversely affected. When supplying water, the upper limit water level is set in consideration of the water level difference from the upper and upper water levels such that the water level does not immediately reach the upper and upper water levels even if light rain falls, and the setting of the lower water level is performed by setting paddy field 3 When the water is drained, the lower limit water level is set in consideration of the difference between the lower water level and the lower water level where the water level does not reach the lower water level immediately due to a normal dry state due to fine weather or the like.

The optimum water level, the upper water level, the upper water level, the lower water level, and the lower water level can be set in advance according to the growing condition of the paddy rice. Each water level can be appropriately set each time according to the growing condition and the weather condition of the paddy rice.

The water level sensor 1 installed in the paddy field 3 may be appropriately set at an appropriate part in the paddy field 3. In some cases, a plurality of water level sensors 1 are installed in the paddy field 3 and a plurality of water level sensors 1 are provided. It is also possible to create a control program so that the water level in the paddy field 3 can be controlled to a predetermined water level based on the above information.

In the case where the water levels in a large number of paddy fields 3 are each controlled to a predetermined water level, the water level detection information of the water level sensor 1 installed in each paddy field 3 and the control personal computer 4 as in the above-described embodiment. The water level in each paddy field 3 may be controlled by comparing with the water level information of the control program input to the paddy field. The water level sensor 1 is installed in a predetermined paddy field 3 among a plurality of paddy fields 3. By comparing the water level of the paddy field 3 where the water level sensor 1 is installed with the water level information of the control program input to the control personal computer 4 and controlling the water level of the paddy field 3 where the water level sensor 1 is installed, a plurality of paddy fields 3 The water level can be managed.

Opening and closing of the water supply control valve 5 and the drainage control valve 6
In the above-described embodiment, the description has been made on the assumption that the valve is fully opened or fully closed. However, the opening and closing amounts of the water supply control valve 5 and the drainage control valve 6 may be appropriately adjusted. It can also be configured so that it can be controlled appropriately.

[0029]

As described above, the present invention automatically compares the water level information of the control program input to the control personal computer with the water level detection information in the paddy field to control the water supply control provided in the paddy field. By automatically controlling the opening and closing of the valve and the drainage control valve, the water level in the paddy field can be automatically controlled to the water level set based on the water level information in the control program. The water level in the paddy field can always be maintained in an optimal state by automatic control by a computer without spending a great deal of effort on water level management of the paddy field.

Further, since the water level information of the control program is set at two levels, upper and lower, with the optimum water level as the center, even if the water level in the paddy field fluctuates rapidly, the water supply control valve And the opening and closing of the drainage control valve can be minimized, and the water level is at the upper limit (upper limit water level)
Alternatively, the opening and closing of the water supply control valve or drainage control valve can be automatically controlled quickly so as not to exceed the lower limit value (lower lower limit water level), and the frequency of opening and closing the drainage control valve and water supply control valve is minimized. By doing so, it is possible to control the supply and stop of water into the paddy and the discharge and stop of water from the paddy in a very stable state, and as a result, the movement of water in the paddy frequently occurs Water flow due to the movement of water is less likely to mechanically impact the rice,
Factors that adversely affect the growth of paddy rice can be reduced.

Further, by minimizing the frequency of opening and closing of the water supply control valve and the drainage control valve, the amount of water discharged from the discharge port can be minimized, and the water supplied from the water supply port can be minimized. The amount can be reduced to the minimum necessary, and water can be saved and used without wasting water.In recent years when chronic water shortages are occurring, this system can be used. You can save water very effectively.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a paddy water level automatic control system according to one embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 water level sensor 2 wireless transmission device 3 paddy field 4 control personal computer 5 water supply control valve 6 drainage control valve

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kozo Iwano 1-4-4 Omotemachi, Nagaoka City, Niigata Prefecture Inside Sorimachi Co., Ltd. (72) Inventor Manabu Kikuchi 1-4-4 Omotemachi, Nagaoka City, Niigata Prefecture Sorimachi Inc. (72) Inventor Katsuyoshi Takamura 1-4-4 Omotemachi, Nagaoka City, Niigata Prefecture Inside Solimachi Co., Ltd. In the propulsion mechanism

Claims (3)

[Claims] A water level sensor for detecting a water level is provided in a paddy field, and the water level detection information of the water level sensor is input to a control personal computer by a wireless transmission device, and the control personal computer sets the water level in the paddy field to a predetermined water level in advance. The control program created for control is input, and the water level information of the control program is compared with the water level detection information input to the control personal computer, and the value of the water level detection information is based on the water level information of the control program. If less than the predetermined value, open the water supply control valve provided at the water supply port of the paddy field and supply water until the water level of the paddy field reaches the predetermined value according to the water level information of the control program,
When the water level in the paddy field reaches a predetermined value, control information is transmitted to the water supply control valve provided at the water supply port of the paddy field via a wireless transmission device by a control personal computer so as to close the water supply control valve, and the water level detection information If the value is higher than the predetermined value according to the water level information of the control program, the drainage control valve provided at the drain of the paddy field is opened, and the water is drained until the water level of the paddy field reaches the predetermined value according to the water level information of the control program. The control information is transmitted to the drainage control valve provided at the drainage port of the paddy field via a wireless transmission device by a control personal computer so as to close the drainage control valve when the water level of the paddy field reaches a predetermined value. Paddy water level automatic control system. 2. The water level information setting of the control program is centered on the optimum water level, and the water amount is larger than the upper limit water level at normal time when the water amount is larger than the optimum water level and the upper limit water level at the time of abnormality such as heavy rain. Set the upper and lower water levels, the lower water level lower than the optimum water level during normal operation and the lower water level lower than the lower water level under abnormal conditions such as abnormal drying, and the water level in the paddy field is lower than the lower water level When the water level reaches the upper limit, the water supply control valve is opened and water is supplied to the paddy field.When the water level in the paddy field reaches the upper limit water level, the water supply control valve is closed, and when the water level in the paddy field reaches the upper limit water level, the drainage control valve is opened. 2. The automatic rice field water level control system according to claim 1, wherein the drainage control valve is closed when the water level in the rice field reaches the lower limit water level. 3. The upper limit water level is set at an upper limit value of a water level at which a higher water level adversely affects the growth of the rice plant so that the rice plant can grow well. The setting of the lower limit water level is set at the lower limit value of the water level, in which if the water level is lower than this, the growth of the rice is adversely affected, and the setting of the upper limit water level is to supply water to the rice field. When the rainfall, etc., even if it is raining, the upper limit water level is set in consideration of the difference between the upper and lower water levels to such an extent that the water level does not immediately reach the upper and upper water levels, and the setting of the lower water level is performed by setting the water level of the paddy field. When draining water, the lower limit water level is set in consideration of a difference in water level from the lower lower limit water level such that the water level does not immediately reach the lower lower limit water level due to a normal dry state due to fine weather or the like. Paddy water level automatic control system as described.