JP2022002548A - Field drain plug and field water storage management system - Google Patents

Abstract

To provide a field drain plug capable of promptly functioning a large number of fields as reservoirs when there is a large amount of rainfall, and then appropriately draining from the fields so that flooding from drainage channels does not occur.SOLUTION: A field drain plug 22 that automatically drains water stored in a field comprises: drainage level-adjusting mechanisms 22E and 22H that adjust drainage water levels in the fields; and a drainage water level control unit 223 for switching a drainage level of the field to a normal drainage level to activate the drainage level-adjusting mechanisms 22E and 22H to switch the drainage water level of the field to a storage water level higher than a normal drainage water level when a water storage command for storing precipitation water in the field is output from a water storage management server 50 and activate the drainage level-adjusting mechanisms 22E and 22H when the water storage management server 50 outputs a drainage command to drain the precipitation water stored in the field.SELECTED DRAWING: Figure 3

Description

The present invention relates to a field drain plug and a field water storage management system.

Patent Document 1 describes a water storage amount adjusting device for paddy fields that activates the "rice field dam" function that stores water in paddy fields during heavy rains to automatically store a certain amount of water and suppress the outflow of rainwater to rivers. Is disclosed.

In the paddy field water storage amount adjusting device, the front side arranged on the paddy field side is opened, a vertical wall with a drainage hole at the lower end is arranged on the back side of the rectangular bottom slab, and a pair of side walls are provided on both sides of the bottom slab. One end of the drainage pipe is attached to the drainage hole of the drainage basin for paddy fields installed near the shore of the paddy field, which is arranged and formed in a U shape, and the other end of the drainage pipe is connected to the drainage channel. ..

Then, an earth retaining plate insertion door is provided at a position facing the pair of side walls, and a water storage amount adjusting plate insertion door is provided at a position substantially intermediate between the earth retaining plate insertion door and the vertical wall, and the soil is provided at the earth retaining plate insertion door. A soil retaining plate having almost the same height as the surface is inserted vertically, and a farming water level adjusting plate having a height that becomes the farming water level when placed on the soil retaining plate is inserted vertically. The height of the upper end is formed to be almost the same as the water storage level, which is an arbitrary height according to the growing condition of the rice, and the water storage amount adjustment plate with a drainage amount adjustment hole at the bottom is vertically inserted. There is.

In the case of normal rain volume, rainwater that has entered the space between the farm water level adjustment plate and the water storage amount adjustment plate is drained from the drainage amount adjustment hole of the water storage amount adjustment plate through the drainage pipe attached to the drainage hole. Drain to the road to maintain the farming water level of the paddy field, and in the case of heavy rain, the rainwater that enters the space beyond the farming water level adjustment plate exceeds the discharge from the drainage adjustment hole, and the water level in the space gradually rises. Eventually, the rainwater overflows beyond the water storage level set at the upper end height of the water storage amount adjustment plate, and the rainwater is stored up to the maximum water storage level, which is the height obtained by adding the overflow height to the water storage amount adjustment height. It is configured to prevent flooding of rice in paddy fields and damage to the shores.

Japanese Unexamined Patent Publication No. 2012-12510

However, every time it is necessary to store water in the field in order to avoid flood damage due to heavy rain, it is necessary not only to operate the water storage amount adjustment plate of the water storage amount adjustment device for paddy fields provided in each field, but also to stop raining in the field. Even when returning the water level to the normal water level, it is necessary to operate the water storage amount adjustment plate of the water storage amount adjustment device for paddy fields prepared in each field, and the water storage of the water storage amount adjustment device for paddy fields prepared in many fields each time. Very complicated work of operating the amount adjustment plate is required.

In addition, even if the water storage amount adjustment plate is operated so that rainwater can be stored only in some fields, sufficient effects cannot be obtained unless the water storage amount adjustment plate is operated in other fields, and the field managers are different. In some cases, there was also a problem in how to connect and act to operate the water storage amount adjustment plate.

In view of the above-mentioned problems, an object of the present invention is to allow a large number of fields to quickly function as reservoirs when the amount of precipitation is high, and then to appropriately drain the fields from the fields so that the drainage channels do not overflow. The point is to provide a plug and a field water storage management system.

In order to achieve the above object, the first characteristic configuration of the field drainage plug according to the present invention is a field drainage plug that automatically drains the water stored in the field, and is a drainage water level adjusting mechanism for adjusting the drainage water level of the field. When a water storage command for storing precipitation in the field is output from the management server, the drainage water level adjustment mechanism is activated to switch the drainage water level of the field to a water storage level higher than the normal drainage water level, and the management server switches the water storage level to the field. When a drainage command for draining the precipitation stored in the water is output, the drainage water level adjusting mechanism is activated to provide a drainage water level control unit for switching the drainage water level in the field to the normal drainage water level.

When the water storage command is output from the management server, the drainage water level control unit adjusts the drainage water level adjustment mechanism and switches the drainage water level in the field to the water storage level. When a drainage command is output from the management server, the drainage water level control unit adjusts the drainage water level adjustment mechanism, and the drainage water level in the field is switched to the normal drainage water level to drain the water from the field. Since the drainage water level adjustment mechanism of each field is automatically controlled between the storage water level and the distribution water level by the drainage water level control unit, many fields can quickly function as reservoirs when there is a lot of precipitation, and then overflow from the drainage channel. It can be properly drained from the field so that it does not occur.

In addition to the above-mentioned first feature configuration, the second feature configuration includes the water storage command or the drainage command output based on the water level information measured by the water level sensor that measures the water level of the field or drainage channel. Based on this, the point is to operate the drainage water level adjusting mechanism.

The third characteristic configuration is a predetermined configuration specified from the unique identification information set in the field drainage plug and the unique identification information set in the water level sensor, in addition to the second characteristic configuration described above. The point is to operate the drainage water level adjusting mechanism based on the water storage command or the drainage command output for each region.

The first characteristic configuration of the field water storage management system according to the present invention is to operate the drainage water level adjusting mechanism for adjusting the drainage water level of the field and the drainage water level adjusting mechanism to change the drainage water level of the field to the normal drainage water level and the normal drainage water level. A field drain plug equipped with a drain water level control unit that switches to either a water storage level higher than the drain water level and a communication unit that communicates with an external device, and a field drain plug that communicates with each field drain plug and the water level of the field or drain channel. Based on the water level information about, it is equipped with a water storage command that stores water in each field or a water storage management server that includes a water storage management unit that sends a drainage command to drain the water stored in each field. be.

Since the drainage water level adjustment mechanism of each field is automatically controlled between the storage water level and the distribution water level by the drainage water level control unit, many fields can quickly function as reservoirs when there is a lot of precipitation, and then overflow from the drainage channel. It can be properly drained from the field so that it does not occur.

In the second feature configuration, in addition to the first feature configuration described above, the water storage management server has unique identification information set in the field drain plug and the position of the field or the position of the drainage channel on the map. The point is that it remembers the associated map information.

As described above, according to the present invention, a field drainage plug capable of promptly functioning a large number of fields as a reservoir when there is a large amount of rainfall and then appropriately draining the field from the field so as not to cause overflow from the drainage channel. And it has become possible to provide a field water storage management system.

Explanatory drawing of field and field water storage management system (A), (b), (c) are explanatory views of the field drain plug. Explanatory diagram of field water storage management system Flow chart showing water storage and drainage procedures of the field water storage management system Flow chart showing the procedure for storing water in the field water storage method Flow chart showing the procedure for drainage of the field water storage method

The field drain plug, the field water storage management system, the water storage management server, and the field water storage method according to the present invention will be described below.

As shown in FIG. 1, in each field 1 where rice cultivation is carried out, a field faucet 12 that guides the water flowing through the water supply pipe 10 to the field 1 via the headrace 11 and the water of the field 1 are discharged. A field drain plug 22 for draining water to the drainage channel 20 via the 21 is provided, and a repeater such as a Wi-Fi router 30 for relaying a connection with the Internet 40 is installed in the vicinity of the field 1. Further, a water level sensor 2 for measuring the water level of the field 1 is provided, and a water level sensor 3 for measuring the water level of the drainage channel 20 is provided in the drainage channel 20 near the field drain plug 22.

The water level data of the field 1 detected by the water level sensor 2 is input to the communication unit provided in the field water faucet 12, and the communication unit of the field drain plug 22 and the field management server 50 are input from the communication unit via the Wi-Fi router 30. It is configured to be sent to. Further, the water level data of the drainage channel 20 detected by the water level sensor 3 is input to the communication unit provided in the field drain plug 22, and is transmitted from the communication unit to the field management server 50 via the Wi-Fi router 30. It is configured in. The output of the water level sensor 2 may be directly input to the field water tap 12, and the output of the water level sensor 3 may be directly input to the field drain plug 22.

As shown in FIGS. 2A, 2B, and 2C, the field drain plug 22 includes the casing 22C, the solar panel 22A attached to the upper part of the casing 22C so as to be adjustable in posture, and the inside of the casing 22C. It is configured to include a battery 22D, an electric motor 22E, a tubular drainage weir 22H, an elevating body 22G for raising and lowering the drainage weir 22H, a gear 22F for raising and lowering the elevating body 22G, and a control board 22I. The control board 22I incorporates a communication interface for the Wi-Fi router 30 and a control unit for the electric motor 22E.

The electric power generated by the solar panel 22A is stored in the battery 22D, and the power is supplied from the battery 22D to the control board 22I and the electric motor 22E. As shown in FIG. 2C, when the drainage weir 22H is driven upward by the electric motor 22E, the water storage mode is set and the drainage water level from the field 1 rises, and as shown in FIG. 2B, the drainage weir 22H Is driven downward, the drainage mode is set and the drainage water level from the field 1 is lowered.

The field water tap 12 is configured in substantially the same manner as the field drain plug 22 except that a water supply valve is provided in place of the drainage weir 22H.

The field management server 50 is configured to remotely control the field water tap 12 and the field drain plug 22 in order to manage water supply and drainage for each field 1 according to the rice cultivation schedule.

For example, the field water level is managed to an appropriate level in order to appropriately grow rice at each time such as rice planting time, panicle formation stage, panicle rose stage, heading stage, ripening stage, and harvest stage. Therefore, after adjusting the height of the drainage weir 22H of the field drainage plug 22 by remote control according to each time, the water supply valve of the field water supply plug 12 is remotely operated and opened, and the water level detected by the water level sensor 2 is set. Water is supplied from the water supply pipe 10 until the water level reaches a predetermined level, and after a predetermined period of time elapses, the height of the drainage weir 22H is remotely adjusted as necessary to drain the water to the predetermined water level.

Further, the field management server 50 functions as a water storage management server for avoiding the occurrence of flood damage by temporarily storing water in the field 1 when a large amount of rainfall occurs, in addition to the above-mentioned management of water supply and drainage for growing rice. It is configured in. Therefore, the field management server 50 communicates with each field drain plug 22 and each water level sensor 2 and 3, and either a water storage command for storing water due to rainfall in each field 1 or discharges water stored in each field 1. It is equipped with a water storage management unit 51 that transmits a drainage command.

That is, the water level sensor 2 that measures the water level of the field management server 50 (water storage management unit 51) and the field 1 or the drainage channel 20 and transmits the measured water level to the field management server (water storage management server) 50 that is an external device. The field water storage management system 100 is configured by the field drain plug 22 provided in each field 1.

As shown in FIG. 3, the field drain plug 22 operates the electric motor 22E and the drainage weir 22H that function as a drainage water level adjusting mechanism for adjusting the drainage water level of the field 1, and the drainage water level adjusting mechanism, so that the field 1 can be operated. The drainage water level control unit 223 that switches the drainage water level to either the normal drainage water level LL (see FIG. 2B) or the storage water level HL higher than the normal drainage water level (see FIG. 2C), and unique The water level information acquisition unit that acquires the water level information of the drainage channel 20 by the communication unit 221 that communicates with the water storage management server 50 and the water level sensor 3, the water storage determination unit 222, and the water level measurement signal and the data communication signal. It is equipped with 224. The normal drainage water level LL is not a fixed water level, but a water level appropriately set according to each time such as the above-mentioned rice planting time, panicle formation stage, panicle spreading stage, heading stage, ripening stage, and harvesting stage. ..

Each field drain plug 22 is uniquely identified by the unique identification information set for each of the plurality of field drain plugs 22, and the storage of the water storage management server 50 as map information in which each identification information is associated with the field position on the map. It is remembered in the department.

Each water level sensor 2 or 3 includes a water level measuring unit that measures the water level of the field 1 or the drainage channel 20, and a transmitting unit that transmits the measured water level by the water level measuring unit to an external device. Information is set. It is stored in the storage unit of the water storage management server 50 as map information in which the unique identification information attached to the water level sensors 2 and 3 is associated with the position of the field 1 or the position of the drainage channel 20 on the map.

In this embodiment, the measured water level is indirectly transmitted to the water storage management server 50 via the field faucet 12 via the transmission unit provided in the water level sensor 2 of the field 1, and the drainage channel 20 is configured. The measured water level is indirectly transmitted to the water storage management server 50 via the nearby field drain plug 22 via the transmission unit provided in the water level sensor 3, but the water level sensors 2 and 3 of each The measured water level may be configured to be directly transmitted to the water storage management server 50 via the transmission unit. Further, even if each water level sensor 2 or 3 is configured such that a water level measuring unit is connected to a device having a transmitting unit such as a field water tap 12 or a field drain plug 22, and the transmitting unit transmits water level information. good.

The water storage management unit 51 provided in the water storage management server 50 can grasp the precipitation distribution over a wide area from the water level information measured by the water level sensors 2 and 3, and also grasps the state of the drainage water level of each field drain plug 22. become able to. The water storage management unit 51 appropriately selects and remotely controls the field drain plug 22 that should be switched to the water storage level and the field drain plug 22 that should be switched to the normal drain water level based on at least this information. It is possible to prevent the occurrence of flood damage.

Specifically, the water storage management unit 51 determines whether or not to store water for each predetermined area specified from at least the rising speed of the field water level and the identification information transmitted from each water level sensor 2, and determines that the water is stored. If this is done, the water storage command is configured to be transmitted to the corresponding field drain plug 22, and the water storage determination unit 222 of the field drain plug 22 that has received the water storage command adjusts the drain dam 22H to the water storage level. It is configured.

Based on the rate of increase in the field water level transmitted from each water level sensor 2 and the area, the area where flood damage may occur is identified, and the field requiring water storage is quickly identified corresponding to the area. become.

Further, when the water storage management unit 51 determines that water storage is necessary in any area, it determines that water storage is necessary even in a predetermined area having a lower altitude than that area, and the field drain plug 22 in the target area. It is also configured to output a water storage command. If an area where the rate of increase in the field water level is high is grasped and water is stored in the field in the area and the area where the altitude is lower than the area, the occurrence of flood damage can be more reliably avoided.

The water storage management unit 51 takes into account the state of the field water faucet 12 and the weather information from the weather information providing server managed by the Japan Meteorological Agency, local governments, etc., in addition to the rising speed of the field water level transmitted from the water level sensor 2. It is preferable that the water storage command is output. It becomes possible to accurately determine whether the water level is rising due to the opening of the field water tap 12 or the water level is rising due to rainfall.

For example, if it can be determined that no rainfall has occurred based on the weather information and the field water tap 12 is open, even if the water level rise rate in the field is a value that needs to output a water storage command, The water level adjustment of the field 1 according to the original function as the field management server 50 is continued without issuing a water storage command.

Further, for example, when rainfall is occurring based on meteorological information and it can be determined that the amount of precipitation is larger than the predetermined amount of precipitation, if the field water tap 12 is opened, the field 1 according to the original function is used. The field water tap 12 is closed by interrupting the water level adjustment, and a water storage command is output to the field drain plug 22.

Then, the water storage management unit 51 determines that water storage is necessary, outputs a water storage command, and then drains water for each predetermined area specified from at least the water level of the drainage channel 20 and the identification information transmitted from each water level sensor 3. It is configured to output a drainage command to the field drainage plug 22 which is determined to be possible or not, and the water storage determination unit 222 of the field drainage plug 22 which has received the drainage command sets the drainage dam 22H. It is configured to adjust to the drainage level.

If the water is drained all at once from the stored field 1 after the rainfall has stopped, there is a risk of flood damage due to the overflow of the drainage channel 20. Therefore, whether or not to grasp the position of the drainage channel 20 from the identification information of the water level sensor 3 and allow drainage from the field drainage plug for each area so that overflow does not occur based on the water level of the drainage channel 20. Judged.

When the water storage management unit 51 determines that drainage is possible in any area, it determines that the area with low altitude is preferentially drained over the area with high altitude. If all the field drain plugs 22 in the drainable area are drained all at once, the water overflowing from the drainage channel 20 may cause a secondary disaster. Therefore, by draining the low altitude area with priority over the high altitude area, the stored water in each field can be safely drained to the drainage channel.

As shown in FIG. 4, the field water storage method according to the present invention includes a precipitation estimation step of detecting the water level of a field or a drainage channel for each region and estimating the precipitation amount (S1), and water storage based on the estimated precipitation amount. When it is determined that water storage is necessary in the water storage determination step (S2) to determine the necessity of water storage, the drainage water level of the field drain plug prepared for the field in the corresponding area and the area at a lower altitude than the area. A water storage step of raising and storing water (S3), a drainage judgment step of determining whether or not drainage is possible from the stored field based on the water level of the drainage channel (S4), and the above-mentioned drainage judgment step. When it is determined that drainage is possible, the drainage step (S5), in which the low-altitude area is given priority over the high-altitude area, is included.

In the above-described embodiment, the mode in which each field drain plug 22 provided in the plurality of fields 1 is controlled remotely by the water storage management server 50 has been described, but the field drain plug 22 provided in each field 1 is unique. It may be configured to store water after determining whether or not to store the water, and then drain the water after storing the water.

The field drain plug 22 includes drainage water level adjusting mechanisms 22E and 22H for adjusting the drainage water level of the field 1 and a water storage determination unit 222 for determining whether it is necessary to store precipitation in the field 1 or whether drainage is possible from the field 1. When the water storage command is output from the water storage judgment unit 222, the drainage water level adjusting mechanisms 22E and 22H are activated to switch the drainage water level of the field 1 to a water storage water level higher than the normal drainage water level, and the water storage judgment unit 222 sends a drainage command. Is output, the drainage water level adjusting mechanisms 22E and 22H are operated to provide a drainage water level control unit 223 for switching the drainage water level of the field 1 to a normal drainage water level.

Further, the water storage determination unit 222 is configured to determine whether or not water storage is necessary by using the rising speed of the water level detected by the water level sensor 2 installed in the field 1 as an index. It is preferable to simply output the water storage command when the rising speed of the water level is larger than a predetermined value, but to output the water storage command when the water level continues for a predetermined time.
The water storage determination unit 222 is configured to determine whether or not drainage is possible by using the water level detected by the water level sensor 3 installed in the drainage channel 20 as an index. If the drainage from the field 1 flows in when the water level of the drainage channel 22 is high, it may overflow from the drainage channel 20 and lead to flood damage. Is it possible to drain the water based on the water level of the drainage channel 20 detected by the water level sensor 3? By determining whether or not it is possible, it is possible to prevent the occurrence of a secondary disaster due to the overflow from the drainage channel 20.

As shown in FIG. 5, the water storage determination unit 222 monitors the water level based on the output from the water level sensor when the field water faucet 12 is blocked (SA1) and when there is rainfall (SA2) (SA1). SA3) When it is determined that water storage is necessary when the water level rise rate exceeds a predetermined value (SA4), the drainage water level is switched to the water storage level (SA5). If it is not determined to be raining in step SA2, or if the rising speed of the water level is below a predetermined value in step SA4, the drainage water level is set to normal water (SA6).

As shown in FIG. 6, when the drainage water level is set to the water storage level and is in the water storage state (SB1), the rainfall stops (SB2), and when the predetermined conditions are satisfied (SB3), the drainage water level is switched to the normal water level. Wastewater is treated (SB4).

Whether or not rainfall has occurred or has stopped is determined by obtaining weather information from a weather information providing server managed by the Japan Meteorological Agency, local governments, etc. via the Wi-Fi router 30, or by providing a separate rainfall sensor. It can be judged based on the output of. The water level in the field is detected by the water level sensor 2 and is obtained via the field faucet 12 and the Wi-Fi router 30. In the above embodiment, the step of obtaining the rainfall information is taken, but the configuration may be controlled without the rainfall information. In this way, each field 1 can be configured to individually control water storage and drainage.

The embodiments described above are merely examples of the present invention, and the description is not intended to limit the technical scope of the present invention, and specific examples of the field drain plug, the field water storage management system, and the water storage management server. Needless to say, such a configuration can be appropriately modified and designed within the range in which the action and effect according to the present invention are exhibited.

100: Field water storage management system 1: Field 2: Water level sensor (field)
3: Water level sensor (drainage channel)
10: Water supply pipe 12: Field water tap 20: Drainage channel 22: Field drain plug 30: Wi-Fi router 40: Internet 50: Field management server (water storage management server)
51: Water Storage Management Department

Claims (5)

A field drain plug that automatically drains water stored in the field.
A drainage water level adjustment mechanism that adjusts the drainage water level in the field,
When a water storage command for storing precipitation in the field is output from the management server, the drain water level adjustment mechanism is activated to switch the drain water level of the field to a water storage level higher than the normal drain water level, and the management server stores water in the field. A field drain plug provided with a drain water level control unit that activates the drain water level adjusting mechanism to switch the drain water level of the field to a normal drain water level when a drain command for draining the discharged precipitation is output. The field drain plug according to claim 1, wherein the drain water level adjusting mechanism is operated based on the water storage command or the drain command output based on the water level information measured by the water level sensor that measures the water level of the field or the drainage channel. .. The drainage is based on the water storage command or the drainage command output for each predetermined area specified from the unique identification information set in the field drain plug and the unique identification information set in the water level sensor. The field drain plug according to claim 2, which activates the water level adjusting mechanism. The drainage water level control mechanism that adjusts the drainage water level of the field and the drainage water level adjustment mechanism are activated to switch the drainage water level of the field between the normal drainage water level and the stored water level higher than the normal drainage water level. A field drain plug equipped with a unit and a communication unit that communicates with external equipment,
Water storage management that communicates with each field drain plug and sends a water storage command to store precipitation in each field or a drainage command to drain the precipitation stored in each field based on the water level information about the field or drainage channel. Water storage management server including department and
A field water storage management system equipped with. The field water storage management system according to claim 4, wherein the water storage management server stores map information in which the unique identification information set in the field drain plug is associated with the position of the field or the position of the drainage channel on the map. ..

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