JP7437349B2 - Field water management system, terminal device and field water management device - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act Sales offer 1 May 14, 2020 Publication of "Field water management system" equipped with drainage weir calibration function via email and attached file to Kubota Agri Service Co., Ltd. Website release 1 June 2, 2020 Website https://wataras. Kubota. "Field water management system" with drainage weir calibration function released on com/loginForm Website release 2 April 12, 2021 Website https://www. kubota-chemix. co. jp/ has released a “field water management system” with a drainage weir calibration function Website release 3 April 13, 2021 Website https://agriculture. Kubota. co. jp/product/kanren/wataras/screen_function. ``Field water management system'' with drainage weir calibration function released on html

The present invention relates to a field water management system, a terminal device, and a field water management device.

Patent Document 1 discloses a water supply faucet and a drain faucet equipped with a field electric actuator that operates a displacement mechanism for controlling water supply to or drainage from a field. By using these water taps and drain plugs, it becomes possible to remotely control the water supply to and drainage from the field via the field water management device.

The field electric actuator is a control device that controls water faucets and drain valves, and includes an actuator equipped with an electric motor that operates the water faucet or drain valve, and an electronic circuit that controls the actuator and communicates with the field water management device. It is equipped with

Patent Document 2 discloses an electronic control circuit including a water supply faucet, an actuator that operates the water supply faucet, a water supply control section that controls the actuator, and a communication section that communicates with a field water management server; a water supply control device that supplies irrigation water to the field from the water faucet and includes a storage battery that supplies power to the actuator; a remote control terminal that inputs and sets remote control information for the water supply control device; A field water management system is disclosed that includes a field water management server that receives operation information and remotely controls a corresponding water supply control device.

Japanese Patent Application Publication No. 2017-193914 JP2020-103285A

By using the techniques disclosed in Patent Documents 1 and 2, the above-mentioned method can be applied to each field where a water supply device equipped with a hydrant, a drainage device equipped with a drainage weir, and a water supply and drainage equipment including a water level gauge are installed. A field water management device that remotely controls the water supply device and the drainage device based on the water level detected by a water level meter, and a terminal device that transmits a water supply request or drainage request to the field to the field water management device. A field water management system can be constructed.

However, the field surface is not always maintained horizontally, and if it is sloped, the standards for the installation height of the water level gauge and the installation height of the drainage device may be different. In such a case, if the water level set by the water level meter and the height of the drainage weir provided in the drainage device do not match, it will be difficult to maintain the water level in the field at the set water level.

For example, if the origin of the drainage weir is higher than the origin of the water level gauge, or conversely, if the origin of the drainage weir is lower than the origin of the water level gauge, water is supplied to the field based on the reference water level of the water level gauge, or the field is Even if water is drained from the field, the water level in the field cannot be adjusted to the set water level.

Therefore, it is necessary to individually store calibration information that matches the installation height of the water level gauge and the installation height of the drainage device in the storage section of the electronic circuit that controls the elevation and descent of the drainage weir in each drainage device. , which required complicated processing.

However, since water is not already being supplied to the field at the time the drainage device is installed in the field, unless a measuring device such as a laser level meter is used, the installation height of the water level gauge and the installation height of the drainage device cannot be accurately matched. It was difficult to do so. In addition, in order to write accurate calibration information into the memory section of the electronic circuit after water has been supplied to the field, remove the cover of the drainage system, connect a computer for calibration to the electronic circuit, and run a special application program. There is a problem in that it is very complicated to perform similar operations in each field.

In view of the above-mentioned problems, an object of the present invention is to provide a field water management system, a terminal device, and a field water management device that can easily and accurately adjust the installation height of a water level gauge and the installation height of a drainage device. It is in.

In order to achieve the above object, the first characteristic configuration of the field water management system according to the present invention is a water supply and drainage system that is installed in each field and includes a water supply device equipped with a water tap, a drainage device equipped with a drainage weir, and a water level gauge. A field water management device that includes equipment and a remote control unit that remotely controls the water supply device and the drainage device so that the water level in each field reaches a set water level, and the field water management device controls water supply and drainage for the field. A field water management system comprising: a terminal device equipped with a control information processing unit for exchanging control information including The field water management device is configured to send drainage water level calibration information that matches the amount of deviation between the origin of the drainage weir and the origin of the drainage weir to the field water management device, and the field water management device calculates the current drainage water level based on the drainage water level calibration information. A calibration processing unit that updates drainage water level calibration information and stores it in a storage unit; and a lifting height setting unit that sets the lifting height of the drainage weir based on the drainage water level calibration information and the set water level. It is in.

When supplying water to a field, the field water management device remotely controls the drainage device so that the height of the drainage weir in the field to be controlled becomes a predetermined water storage height corresponding to the set water level, and also uses a water level meter to The water supply device is remotely controlled so that the measured water level matches the set water level. Furthermore, when draining water from a field, the drainage device is remotely controlled so that the height of the drainage weir becomes a predetermined drainage height.

However, if the amount of deviation between the origin of the water level gauge and the origin of the drainage weir is different, the height of the drainage weir will be adjusted to a height different from the original water storage height, and water may not be supplied to the set water level or water may not be drained. There is a possibility that a situation may arise.

Even in such a case, for example, a farmer can check the height of a drainage weir near the field and transmit drainage water level calibration information to the field water management device via a control information processing unit installed in a terminal device owned by the farmer. When the current drainage water level calibration information is updated to new drainage water level calibration information by the calibration processing unit provided in the field water management device and stored in the storage unit, the elevation height setting unit updates the current drainage water level calibration information to the new drainage water level calibration information. The elevation height of the drainage weir can now be set appropriately based on the set water level.

In addition to the first characteristic configuration described above, the second characteristic configuration is such that, in addition to the above-mentioned first characteristic configuration, the vertical height setting unit sets the vertical height when the vertical height of the drainage weir exceeds a vertical vertical tolerance value of the drainage weir. The present invention is configured to limit the vertical movement within the above-mentioned vertical allowable value.

If the elevation height of the drainage weir set by the elevation height setting section based on the drainage water level calibration information and the set water level deviates from the elevation tolerance of the drainage weir, the drainage device will exceed that value and raise and lower the drainage weir. The disadvantage arises that the drainage height cannot be controlled. In such a case, if status information indicating an uncontrollability is sent from the drainage device to the field water management device, there is a risk that the system will stop, and it will be necessary to take complicated steps to restore the normal state. Therefore, if the elevation height of the drainage weir exceeds the allowable elevation value of the drainage weir, it is possible to avoid such an inconvenient situation by limiting the elevation height to within the elevation tolerance value. can.

A characteristic configuration of a terminal device according to the present invention is a terminal device used in a field water management system having the above-described first or second characteristic configuration, in which the origin of the water level gauge provided in the field and the drainage weir The present invention includes a control information processing unit that transmits drainage water level calibration information that matches the amount of deviation from the origin to the field water management device.

The characteristic configuration of the field water management device according to the present invention is a field water management device used in a field water management system having the above-mentioned first or second characteristic configuration, and is configured so that the water level in each field becomes the set water level. a remote control unit that remotely controls the water supply device and the drainage device; a calibration processing unit that updates the drainage water level calibration information based on the drainage water level calibration information and stores it in a storage unit; The present invention further includes a lifting height setting section that sets the lifting height of the drainage weir based on the set water level.

As explained above, according to the present invention, it is possible to provide a field water management system, a terminal device, and a field water management device that can easily and accurately adjust the installation height of a water level gauge and the installation height of a drainage device. Now you can.

Diagram of field water management system Explanatory diagram of functional blocks of water supply control device and drainage control device (a) is an explanatory diagram of the state in which the origin deviation amount of the water level gauge installed in the field and the drainage weir has been properly calibrated, and (b) is an explanatory diagram of the state in which the drainage weir is adjusted to the drainage water level corresponding to the set water level in the state of (a). Explanatory diagram of the state (a) is an explanatory diagram of a state in which the origin deviation amount of the water level gauge installed in the field and the drainage weir has been calibrated excessively, and (b) is an illustration of the state in which the drainage weir has been adjusted to the set water level in the state of (a). figure (a) is an explanatory diagram of the state in which the origin deviation of the water level gauge installed in the field and the drainage weir has been calibrated to be too small, and (b) is the illustration of drainage with the drainage weir adjusted to the set water level in the state of (a). Diagram of weir height Flowchart showing an example of flooding control procedure to keep the water level in the field constant Flowchart showing an example of the procedure of drainage water level calibration processing using a terminal device Flowchart showing an example of the procedure for calibrating the drainage water level using the field water management device

Below, a field water management system, a terminal device, and a field water management device according to the present invention will be explained.
[Configuration of field water management system]
As shown in FIG. 1, each field 1 where rice cultivation is performed includes a water supply device 12 that directs water flowing into a water supply pipe 10 to the field 1 through a water conduit 11, and a water supply device 12 that directs water flowing into a water supply pipe 10 to the field 1 through a water conduit 11, and a water supply device 12 that directs water flowing into a water supply pipe 10 to the field 1 through a water conduit 21. Water supply and drainage equipment such as a drainage device 22 for discharging water into a drainage channel 20 and a water level gauge 2 for measuring the water level in the field 1 are provided.

The water supply device 12 and the drainage device 22 are communicably connected to a field water management server 40 via a wireless router 32 placed near the field 1 via a wireless communication network including the Internet 30. Further, a terminal device 50 such as a smartphone owned by the manager of each field 1 is communicably connected to the field water management server 40 via a wireless communication network including the Internet 30.

A field water management system 100 is configured by each water supply device 12, water level gauge 2, drainage device 22, terminal device 50, field water management server 40, and the Internet 30 that connects them communicably. The field water management server 40 functions as a field water management device of the present invention. The terminal device 50 is composed of a portable terminal device such as a smartphone or a tablet computer, or a general-purpose computer such as a desktop type or a laptop type. Furthermore, although the present embodiment is configured such that the water level measured by the water level gauge 2 is transmitted to the field water management server 40 via the water supply device 12, the present invention is not limited to this aspect; The information may be transmitted to the field water management server 40 via the drainage device 22, or the water level gauge 2 may be configured to communicate directly with the field water management server 40.

Taking rice cultivation as an example, each stage of rice cultivation, such as puddling, planting, rooting period, tillering period (early and late), ear formation period to ear flowering period, and ripening period, is divided into fields according to each stage. It is necessary to variably adjust the water level of No. 1. For example, during the puddling season, multiple fields receive water at the same time, so it is necessary to efficiently manage the water supply for waterlogging. It is also necessary to adjust the timing and water level of the water storage in each field depending on the variety grown in each field. For this purpose, the field water management system 100 is utilized.

As shown in FIG. 2, the field water management server 40 includes a storage unit 48 that stores information on each field 1, and remotely controls the water supply device 12 and drainage device 22 so that the water level in each field 1 reaches the set water level. The remote control unit 42 is equipped with a lifting height setting unit 44 for setting the lifting height of the drainage weir 22A provided in the drainage device 22.

Further, the terminal device 50 operated by the manager of each field 1 includes a control information processing unit 52 that exchanges control information including water supply and drainage for the field 1 with the field water management server 40. The control information processing unit 52 has a function as a browser that inputs control information from the field water management server 40 and outputs necessary information to the field water management server 40.

The control information includes a field ID that uniquely identifies each field 1, the amount of deviation from the origin of the water supply device 12, drainage device 22, and water level gauge 2 installed in each field 1, the amount of deviation from the origin of the drainage weir 22A, etc. It will be done. Furthermore, the control information includes specification values such as the water supply capacity linked to each water supply device, and specification values such as the drainage capacity linked to each drainage device, and the opening degree of the hydrant provided in the water supply device. It is used to adjust the height and position of drainage weirs in drainage equipment. These control information are initially transmitted from the terminal device 50 to the field water management server 40 and stored in the storage unit 48 provided in the field water management server 40.

Further, the control information includes water supply and drainage information such as a water supply request including water supply date and time and set water level linked to each field ID, and a drainage request including drainage date and time, and the water supply and drainage information is control information provided in the terminal device 50. The processing unit 52 transmits the information to the field water management server 40 as necessary.

As shown in Fig. 3(a), the amount of deviation from the origin of the water level gauge 2 refers to the difference between the water level indicated by the water level gauge 2 and the actual measured value, which is the actual value based on the rice field WL0 at the point where the water level gauge 2 is installed. The difference WLc between the water level WL1 and the sensor origin (zero value) of the water level gauge 2 is the calibration value WLc for making the water level indicated by the water level gauge 2 match the actual water level. If the calibration is correct, the origin WLb of the water level gauge 2 after calibration will match the rice field WL0. The set water level of the field 1 is managed based on the calibrated water level meter origin WLb and the reference water level.

The origin deviation amount of the drainage weir 22A refers to the difference Dc between the lowest point Dmin set as the origin of the drainage weir 22A at the installation position of the drainage device 22 and the rice field WL0 at the point where the water level gauge 2 is installed. This is called a calibration value Dc for adjusting the vertical height of the drainage weir 22A to an appropriate height, which is set in accordance with the water level. In the initial stage when water is not being supplied to the field 1, the water level cannot be actually measured, so provisional values are set for each of the calibration values WLc and Dc. Note that the origin of the drainage weir 22A may be set not at the lowest point but at the rice field where the drainage weir is installed. The calibration values WLc and Dc can take either positive or negative values.

The following description will be made on the assumption that the calibration value WLc of the water level gauge 2 is set to an appropriate value.
When the set water level of the field 1 is WL1, the elevation height H of the drainage weir 22A is set to the sum of the calibration value Dc, the set water level WL1, and the falling water margin ΔWL (H=Dc+WL1+ΔWL). The water fall margin ΔWL is a margin height set to compensate for fluctuations in the water level in case the water surface is undulated by wind. The water fall margin ΔWL can be set via the terminal device 50, and is normally set to about 2 cm.

As shown in FIG. 3(b), when the set water level is set to WL1 and the calibration values WLc and Dc are appropriate values, the elevation height setting section 44 provided in the remote control section 42 controls the drainage system. Dc+WL1+ΔWL is transmitted to 22 as the elevation height, and the height of the drainage weir 22A is set to Dc+WL1+ΔWL.

Returning to FIG. 2, the remote control unit 42 provided in the field water management server 40 immediately controls each field 1 based on control information including water supply and drainage transmitted from the control information processing unit 52 of the terminal device 50, or , a water supply schedule and a drainage schedule for each field 1 are generated and stored in the storage unit 48, and the water supply device 12 and drainage device 22 provided in each field 1 are remotely controlled according to the water supply schedule or drainage schedule.

The drainage device 22 includes a drainage weir 22A and a drainage control device 22B. The drainage control device 22B includes an actuator 220 that raises and lowers the drainage weir 22A, a drainage water level control section 222 that controls the actuator 220, and a communication section 224 that communicates with the field water management server 40. It also includes a storage battery 226 that supplies power to the motor provided in the actuator 220, the drainage water level control section 222, the communication section 224, etc., and a solar cell 228 that charges the storage battery 226.

The water supply device 12 includes a water supply faucet 12A and a water supply control device 12B. The water supply control device 12B includes an actuator 120 that operates the water tap 12A, a water supply control section 122 that controls the actuator 120, and a communication section 124 that communicates with the field water management server 40. It also includes a storage battery 126 that supplies power to the motor provided in the actuator 120, the water supply control unit 122, the communication unit 124, etc., and a solar cell 128 that charges the storage battery 126. Note that the solar cells 128 and 228 are not essential.

As shown in FIG. 6, the field water management server 40 immediately supplies water from the field water management server 40 when the water supply date and time specified in the water supply schedule stored in the storage unit arrives, or through input from the terminal device 50. When there is a request, here a request for constant flooding (SA1), the current water level measured and calibrated by the water level gauge 2 of the relevant field 1 is grasped (SA2), and set for the drainage device 22 of the field 1. A height adjustment command is outputted to adjust the elevation height H (H=Dc+WL1+ΔWL) of the drainage weir 22A corresponding to the water level WL1 (SA3).

The field water management server 40 determines whether the measured value of the water level meter 2 has reached the set water level, and if it has reached the set water level (SA4, Y), outputs a water stop command to the water supply device 12. (SA5), and if the set water level has not been reached (SA4, N), a water supply command is output to the water supply device 12 (SA8).

While the water supply request continues (SA6, Y), the field water management server 40 repeats the processes from steps SA4 to SA6 to maintain the water level in the field 1 at the set water level. When the water supply request is canceled (SA6, N), a water stop command is output to the water supply device 12 (SA7).

In step SA1, if there is no water supply request (SA1, N) and there is a drainage request (SA9, Y), the drain device 22 is commanded so that the height of the drainage weir 22A becomes the drainage water level (SA10).

In the above description, an example is given in which the field water management server 40 grasps the water level in the field 1, controls the water supply device 12 to open and close the water tap 12A, and controls the drainage device 22 to raise and lower the drainage weir 22A. Although described above, the water supply device 12 and the drainage device 22 may be autonomously controlled in response to commands from the field water management server 40.

That is, when a control command is transmitted from the field water management server 40 to the water supply device 12 and the drainage device 22, the water supply device 12 and the drainage device 22 perform predetermined control based on the control command. The control commands include each control mode such as "constant flooding", "continuous irrigation", "intermittent irrigation", "stop", and "drainage", as well as "set water level", "control width", "water fall margin", " Contains parameter values such as "drainage water level".

When the water supply device 12 receives, for example, a control command for "constant flooding" from the field water management server 40, the water level measured by the water level gauge 2 becomes the "set water level", and the water level at that time is controlled so that it falls within the "control width". , autonomously controls the water tap 12A to open or close it to a predetermined opening degree.

The drainage device 22 controls the height of the drainage weir 22A based on a control command transmitted from the field water management server 40. For example, when a control command for "constant flooding" is received, the height of the drainage weir 22A is adjusted to the sum of the "set water level" and "water fall margin", and when a control command for "drainage" is received, the height of the drainage weir 22A is Adjust the height of 22A to the "drainage water level". The "waterfall margin" is a value that takes into account fluctuations in the water surface that rise and fall due to the effects of wind blowing on the field, etc., and is usually set to several centimeters.

As shown in FIG. 4(a), the initially set calibration value of the drainage weir 22A is set to an excessively large calibration value Dc' such that it becomes a position Dmin' lower than the original lowest point Dmin of the drainage weir 22A. 4(b), the vertical height of the drainage weir 22A becomes H (H=Dc'+WL1+ΔWL), which becomes WL1' which is deeper than the original set water level WL1, and ΔH(ΔH=Dmin'- The set water level is substantially increased by Dmin=WL1'-WL1).

As shown in FIG. 5(a), the initially set calibration value Dc'' of the drainage weir 22A is so small that it becomes a position Dmin'' higher than the original lowest point Dmin of the drainage weir 22A. 5(b), the vertical height of the drainage weir 22A becomes H (H=WL1+Dc''+ΔWL), which becomes WL1'' shallower than the original set water level WL1, and ΔH(ΔH The set water level is substantially lowered by =Dmin-Dmin''=WL1-WL1'').

Therefore, via the control information processing unit 52 provided in the terminal device 50, the field manager sends drainage water level calibration information to the field to match the deviation amount between the origin of the water level gauge 2 provided in the field 1 and the origin of the drainage weir 22A. The information is configured to be transmitted to the water management server 40. Then, the calibration processing unit 46 provided in the field water management device 40 stores the drainage water level calibration information in the storage unit 48, and the lifting height setting unit 44 lifts and lowers the drainage weir 22A based on the drainage water level calibration information and the set water level. Configured to set the height. "The elevation height of the drainage weir that is set based on the drainage water level calibration information and the set water level" refers to the height H (H=Dc+WL1+ΔWL) that takes into account the falling water margin ΔWL. However, it goes without saying that the height H (H=Dc+WL1) without taking into account the falling water margin ΔWL may be used. By setting the appropriate calibration value Dc using the drainage water level calibration information in this way, the water level in the field 1 is adjusted to the set water level.

By the way, when the elevation height of the drainage weir 22A set by the elevation height setting unit 44 based on the drainage water level calibration information and the set water level deviates from the elevation tolerance value of the drainage weir 22A, the drainage control device 22B A problem arises in that it is impossible to control the drainage height of the drainage weir 22A beyond this value. In such a case, if status information indicating uncontrollability is transmitted from the drainage device 22 to the field water management server 40, there is a risk that the system will stop, and it will be necessary to take complicated steps to restore the normal state.

Therefore, when the elevation height of the drainage weir 22 exceeds the elevation tolerance of the drainage weir 22A, the elevation height setting unit 44 limits the elevation height to within the elevation tolerance, thereby eliminating such inconvenience. It is possible to prevent the situation from occurring. If the upper limit of the lifting permissible value is exceeded when storing water in the field 1, it is rounded to the upper limit value, and if it falls below the lower limit of the lifting permissible value when draining the water stored in the field 1, it is rounded to the lower limit value.

FIG. 7 shows processing executed by the configuration processing unit 54 provided in the terminal device 50. The field manager reads the water level and the height of the drainage weir 22A transmitted from the field water management server 40 and displayed on the terminal device 50 (SB1, SB2). The water level displayed on the terminal device 50 is the water level of the water level meter, and the height of the drainage weir 22A is the height (WL1+ΔWL) excluding the calibration value.

If water is overflowing from the drainage weir 22A, the field manager determines that the calibration value is too low (SB3, Y), and sends it as a temporary calibration value from the control information processing unit 52 of the terminal device 50. A value higher than the current water level is set and transmitted to the field management server 40 (SB8). Overflow from the drainage weir 22A is avoided by the field management server 40 updating the elevation height of the drainage weir 22A based on the provisional calibration value.

In this state, or without determining that the calibration value is too low in step SB3 (SB3, N), the field manager adjusts the water level based on the water level transmitted from the field water management server 40 and displayed on the terminal device 50. Measure the height from the top of the drainage weir 22A to the top of the drainage weir 22A (SB4). Determine whether the actual measured value is appropriate including the water fall margin ΔWL, and if there is an excess or deficiency (SB5, N), calculate the calibration value to set it to the true drainage water level (SB6 ), the control information processing unit 52 transmits the calibration value to the field water management server 40 (SB7).

FIG. 8 shows the processing executed by the calibration processing section 46 and the elevation height setting section 44 provided in the field water management server 40.
When the drainage water level calibration value is received from the terminal device 50 (SC1), the drainage water level calibration value is stored in the storage unit 48 as a new calibration value (SC2), and the drainage water level calibration value is stored in the storage unit 48 as a new calibration value (SC2). The elevation height H (H=Dc+WL1+ΔWL) to be transmitted is calculated (SC3).

If the calculated elevation height H exceeds the elevation tolerance of the drainage weir 22A (SC4, N), the elevation height is corrected so that it falls within the elevation tolerance (SC5), and the corrected set water level is used to drain the water. It is transmitted to the device 22 (SC6). If the calculated elevation height H falls within the elevation tolerance of the drainage weir 22A (SC4, Y), the elevation height is transmitted to the drainage device 22 (SC6).

In the example described above, the lifting height setting unit 44 sets the lifting height of the drainage weir based on the drainage water level calibration information and the set water level, and transmits the lifting height to the drainage device 22. The lifting height setting unit 44 may be configured to correct the set water level based on the drainage water level calibration information and the set water level, and transmit the set water level to the drainage device 22. Specifically, in step SC3, the set water level is set to Dc+WL1, in step SC5, the set water level is corrected so that the lifting height falls within the allowable lifting value, and in SC6, the target water level that corresponds to the lifting height is set to the drainage device 22. will be sent to. In other words, the "elevating height setting unit that sets the elevating height of the drainage weir based on the drainage water level calibration information and the set water level" of the present invention substitutes the elevating height of the drainage weir to be set with the set water level. It also includes a mode of setting.

In the above explanation, it was assumed that the calibration value WLc of the water level meter 2 was set to an appropriate value, but if the calibration value WLc of the water level meter 2 is not appropriate, The calibration value WLc of the water level gauge 2 is calibrated again via the device 50.

For example, a field manager actually measures the water level at the installation position of the water level gauge 2, calculates a new calibration value WLc based on the difference from the water level transmitted from the field water management server 40 and displayed on the terminal device 50, and obtains the control information. The configuration may be such that when a new calibration value is transmitted to the field water management server 40 via the processing unit 52, the field water management server 40 updates the calibration value of the water level gauge 2.

At this time, the field water management server 40 calculates the difference between the new calibration value of the water level gauge 2 and the previous calibration value, and corrects the previously set calibration value for the drainage weir 22A using the difference. Furthermore, the field manager who has updated the calibration value of the water level gauge 2 may perform the calibration process for the drainage weir 22A again using the procedures shown in FIGS. 7 and 8.

The embodiment described above is only an example of the present invention, and the technical scope of the present invention is not intended to be limited by the description, and the specific configuration of each part is determined within the scope of achieving the effects of the present invention. Needless to say, the design can be changed as appropriate.

1: Field 2: Water level gauge 10: Water supply pipe 12: Water supply device 12A: Water supply tap 12B: Water supply control device 20: Drainage channel 22: Drainage device 22A: Drainage weir 22B: Drainage control device 40: Field water management server (field water management device)
42: Remote control section 44: Lifting height setting section 46: Calibration processing section 48: Storage section 50: Mobile terminal (terminal device)
52: Control information processing unit 100: Field water management system

Claims (4)

Water supply and drainage equipment installed in each field, including a water supply system equipped with a hydrant, a drainage system equipped with a drainage weir, and a water level gauge;
A field water management device comprising a remote control unit that remotely controls the water supply device and the drainage device so that the water level in each field reaches a set water level;
a terminal device including a control information processing unit that exchanges control information including water supply and drainage for the field with the field water management device;
A field water management system comprising:
The control information processing unit provided in the terminal device is configured to transmit drainage water level calibration information for matching the amount of deviation between the origin of the water level gauge provided in the field and the origin of the drainage weir to the field water management device. configured,
The field water management device includes a calibration processing unit that updates current drainage water level calibration information based on the drainage water level calibration information and stores it in a storage unit; A field water management system equipped with a lifting height setting section to set the lifting height of the field. The elevation height setting unit is configured to limit the elevation height to within the elevation tolerance when the elevation height of the drainage weir exceeds the elevation tolerance of the drainage weir. The field water management system described in 1. A terminal device for use in the field water management system according to claim 1 or 2, comprising:
A terminal device comprising a control information processing unit that transmits drainage water level calibration information that matches the amount of deviation between the origin of the water level gauge provided in the field and the origin of the drainage weir to the field water management device. A field water management device used in the field water management system according to claim 1 or 2, comprising:
a remote control unit that remotely controls the water supply device and the drainage device so that the water level in each field reaches a set water level;
a calibration processing unit that updates the drainage water level calibration information based on the drainage water level calibration information and stores it in a storage unit;
A field water management device, comprising: an elevation height setting unit that sets an elevation height of the drainage weir based on the drainage water level calibration information and the set water level.

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