JP2019110832A - Field drainage faucet, field water storage management system, water storage management server and field water storage method - Google Patents

Abstract

To provide a field drainage faucet capable of quickly making a plurality of fields function as water reservoirs when a rainfall amount is large, and then properly discharging water from the fields so as not to generate overflow from a drainage channel.SOLUTION: A field drainage faucet 22 for automatically discharging water which has been stored in a field, comprises: drainage water level adjustment mechanisms 22E, 22H for adjusting a drainage water level of a field; a water storage determination part 222 for determining whether the rainwater should be stored in the field, or the water can be discharged from the field; and a drainage water level control part 223 for actuating the drainage water level adjustment mechanisms 22E, 22H when a water storage command is output from the water storage determination part, for switching a drainage water level on the field to a water storage water level higher than a normal drainage water level, and switching a drainage water level on the field to the normal drainage water level by actuating the drainage water level adjustment mechanisms 22E, 22H when a drainage command is output from the water storage determination part.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a field drainage tap, a field storage management system, a reservoir management server, and a field storage method.

  According to Patent Document 1, a storage amount adjusting device for a paddy field which enables a function of "rice field dam" which stores the water in the paddy field at the time of heavy rain to automatically store a fixed amount of water to suppress the outflow of rainwater to the river. Is disclosed.

  The storage amount adjustment device for paddy field makes the front side arranged in the paddy field side open, arranges the vertical wall which provided the drainage hole in the lower end on the back side of the square bottom plate, and arranges a pair of side walls on both sides of the bottom plate. One end of a drainage pipe is attached to the drainage hole of a drainage gutter for a paddy field, which is disposed and formed in a U-shape and is installed near the ridge of the paddy field, and the other end of the drainage pipe is connected to the drainage channel .

  And while providing a soil retaining plate entrance at the opposing position of a pair of side walls, providing a water storage amount adjustment board access at an approximate middle position between the earth retaining plate entrance and the vertical wall, the soil retaining opening is provided with soil. A soil retaining plate of approximately the same height as the surface is inserted vertically, and a farming water level adjusting plate of the height at which the farming water level will be when inserted on the soil retaining plate is vertically inserted, The upper end height is formed at almost the same height as the water storage water level, which is an arbitrary height according to the growing condition of rice, and a water storage volume adjustment plate with a drainage volume adjustment hole drilled in the lower part is vertically inserted There is.

  In the case of ordinary rainfall, the rainwater which entered the space between the water level adjustment plate and the water storage amount adjustment plate drains through the drainage pipe attached to the drainage hole from the drainage amount adjustment hole of the water storage amount adjustment plate Drain the water into the road to maintain the farming water level of the paddy field, and in the case of heavy rain, the rainwater entering the space over the farming water level adjustment plate exceeds the discharge from the drainage adjustment hole and the water level in the space gradually rises Then, the rainwater is allowed to overflow over the water storage level set at the upper end height of the water volume adjustment plate, and the rainwater is stored up to the maximum water storage level at the height obtained by adding the overflow height to the water volume adjustment height, It is configured to prevent flooding of rice in the paddy field and damage to rice straw.

JP, 2012-120510, A

  However, every time there is a need to store water in the field to avoid flood damage due to heavy rain, it is necessary not only to operate the storage volume adjustment plate of the storage volume adjustment device for paddy fields provided in each field, but also the rain stops. In order to return the water level to the normal water level, it is necessary to operate the storage capacity adjustment plate of the storage capacity adjustment device for paddy fields provided in each field, and in each case the water storage capacity of the storage capacity adjustment system for paddy fields provided in many fields A very complicated operation of operating the quantity adjustment plate is required.

  In addition, even if the storage volume adjustment plate is operated so that rainwater can be stored in only some of the fields, sufficient effects can not be obtained unless the storage volume adjustment plate is operated in other fields, and the administrators of the fields are different. In some cases, there was also a problem in how it could be linked to operate the water storage adjustment plate.

  SUMMARY OF THE INVENTION In view of the problems described above, the object of the present invention is to allow field drainage to function as a reservoir promptly when there is a large amount of rainfall, and then to drain the field drainage appropriately so that flooding from drainage does not occur. A tap, a field storage management system, a storage management server, and a field storage method are provided.

  In order to achieve the above-mentioned object, the first feature configuration of the field drain tap according to the present invention is a field drain tap for automatically draining the water stored in the field as described in claim 1 of the document of the claims. The drainage water level adjustment mechanism which adjusts drainage water level of the field, the storage judgment unit which judges whether it is necessary to store precipitation in the field or drainage from the field, storage command is output from the water storage judgment unit Then, the drainage water level adjustment mechanism is operated to switch the drainage water level of the field to the storage water level higher than the normal drainage water level, and when the drainage command is output from the water storage judgment unit, the drainage water level adjustment mechanism is operated. And a drainage water level control unit for switching the drainage water level in the field to a normal drainage water level.

  When it is judged by the water storage judgment unit that it is necessary to store water in the field, a storage water command is outputted to the drainage water level control unit, the drainage water level control mechanism is adjusted by the drainage water level control unit, and the drainage water level of the field is switched to the storage water level. . Further, when the drainage command is output from the storage judgment unit, the drainage water level control mechanism is adjusted by the drainage water level control unit, the drainage water level of the field is switched to the normal drainage water level, and the drainage is drained from the field. The drainage water level control mechanism of each field is automatically controlled between the storage water level and the distribution water level by the drainage water level control unit, so that many fields are quickly functioned as a reservoir when the amount of precipitation is large, and then overflowing from drainage It can drain water from the field properly so as not to occur.

  According to the second feature configuration, as described in claim 2, in addition to the first feature configuration described above, a water level information acquisition unit for obtaining water level information of a field is provided, and the water storage judgment unit The point is to judge whether the water storage is necessary or not by using the rising speed of the water level of the field obtained by the information acquisition unit as an index.

  The water level information of the field obtained by the water level information acquisition unit is input to the water storage judgment unit, and the water storage judgment unit calculates the rising speed of the water level. As a result, for example, if the amount of rainfall may cause flood damage, it is determined that water storage is necessary.

  According to the third feature configuration, as described in the third aspect, in addition to the first or second feature configuration described above, a water level information acquisition unit for obtaining water level information of the drainage channel is provided, and the water storage judgment unit The point is that the water level of the drainage channel obtained by the water level information acquisition unit is used as an index to determine whether drainage is possible.

  If drainage from the field flows in when the water level of the drainage channel acquired by the water level information acquisition unit is high, there is a possibility that the drainage channel will overflow and lead to flood damage. Therefore, by determining whether drainage is possible based on the obtained water level information of the drainage channel, the occurrence of a secondary disaster due to overflow from the drainage channel can be avoided in advance.

  According to a fourth feature of the invention, as described in the fourth aspect of the invention, in addition to any one of the above-described first to third features, a communication unit for communicating with an external device is further provided. The point is that it is determined that the water storage is necessary when the water storage request is received from the external device via the communication unit.

  When the water storage request is received from the external device via the communication unit, the water storage instruction unit outputs the water storage instruction to the drainage water level control unit, so that occurrence of water damage can be avoided in a wide area. For example, based on the measured water level in the field, the drainage water level in the field will be higher than the normal drainage water level in advance if the water level rises rapidly after that, even if the water storage command is not output at that time. It can be switched to a high storage water level.

  According to the fifth feature configuration, as described in claim 5, in addition to the above-mentioned fourth feature configuration, the water storage judgment unit receives a drainage request from an external device through the communication unit. It is in the point to judge drainage.

  Similarly, when a drainage request is received from an external device via the communication unit, a drainage command is output from the water storage judgment unit to the drainage water level control unit, so drainage judgment should be made only to the water level of drainage near the field. It can drain safely in a wide area.

  The first characteristic configuration of the field storage management system according to the present invention, as described in claim 6, operates the drainage water level adjusting mechanism for adjusting the drainage water level of the field, and the drainage water level adjustment mechanism to A field drainage plug equipped with a drainage level control unit that switches the water level to either a normal drainage water level or a reservoir level higher than the normal drainage water level, and a communication unit that communicates with an external device, and in which unique identification information is set And a water level measurement unit that measures the water level in a field or drainage channel, and a transmission unit that transmits the measured water level to an external device, and a water level sensor in which unique identification information is set, each field drainage tap and each water level sensor And a water storage management server including a water storage management unit for transmitting a water storage command for storing precipitation in each field or for discharging a drainage command for draining the water stored in each field.

  Based on the unique identification information attached to the field drainage plug and the water level sensor, the elevation and geographical position of the field where the drainage tap is installed in advance, and the geographical area of the field and drainage channel where the water level sensor is installed Different positions can be associated. And distribution of precipitation in a wide area can be grasped from water level information measured by a water level sensor, and a state of drainage water level of each field drainage tap can also be grasped. The water storage management unit provided in the water storage management server performs wide area control by appropriately selecting and remotely controlling the field drainage plug to be switched to the water storage level and the field drainage plug to be switched to the normal drainage level based on at least these pieces of information. Can prevent the occurrence of flood damage.

  According to the second feature configuration, as described in the seventh aspect, in addition to the above-mentioned first feature configuration, the water storage management unit uses at least the rising speed of the field level and the identification information transmitted from each water level sensor It is in the point comprised so that it may be judged whether it stores in each predetermined area identified.

  Based on the rising speed of the field level sent from each water level sensor and the area, the area where there is a risk of flooding will be identified, and the required field of water storage will be identified quickly corresponding to the area. Become.

  According to the third characteristic configuration, as described in the eighth aspect, in addition to the second characteristic configuration described above, when the water storage management unit determines that water storage is necessary in any area, the area The point is that it is configured to determine that water storage is necessary even in a predetermined area of lower elevation.

  Once the area where the rise speed of the field level is high is identified, the occurrence of flood damage will be more reliably avoided if the water is stored in the field of the area and an area lower than the area.

  According to a fourth feature of the invention, as described in the ninth aspect of the invention, in addition to any of the first to third features described above, the water storage management unit determines that water storage is necessary, The point is configured to determine whether or not drainage is possible for each predetermined area specified from the water level and identification information of the drainage channel transmitted from at least each water level sensor.

  If the drainage is drained all at once after the rain has stopped, there is a risk of flooding due to the overflow of the drainage channel. Therefore, the position of the drainage channel is grasped from the identification information of the water level sensor, and it is determined whether drainage from the field drainage tap is permitted for each area so that overflow does not occur based on the water level of the drainage channel. .

  According to the fifth feature configuration, as described in claim 10, in addition to the above-described fourth feature configuration, when the water storage management unit determines that drainage is possible in any area, It is the point that it is decided to drain the low area in preference to the high area.

  If all the drainage taps in the drainable area are drained at the same time, the water overflowing from the drainage channel may cause a secondary disaster. Therefore, by preferentially draining low elevation areas to high elevation areas, it is possible to safely drain the storage in each field to drainage.

  The characteristic configuration of the storage water management server according to the present invention is, as described in claim 11, used in a field storage water management system having any of the first to fifth characteristics, and the field drainage installed in each field It is in communication with the water level sensor installed in the tap and each field or drainage channel, and transmits a storage command or drainage command for storing precipitation to each field drainage plug.

  The characteristic configuration of the field water storage method according to the present invention is, as described in claim 12, based on a precipitation estimation step of detecting the water level of the field or drainage channel for each area to estimate the precipitation, and the estimated precipitation If it is judged that water storage is necessary in the water storage judgment step to judge the necessity of water storage and the water storage judgment step, the drainage water level of the field drainage plug provided in the field of the corresponding area and the area lower than that area After the water storage step to raise and store water, and after the water storage step, it is judged that drainage is possible in the drainage judgment step of judging whether drainage is possible from the field stored in the water based on the water level of drainage. In this case, it includes the drainage step of preferentially draining the low elevation area to the high elevation area among the corresponding areas.

  As described above, according to the present invention, when there is a large amount of precipitation, a large number of fields can be functioned as reservoirs promptly, and then field drainage plugs can be appropriately drained from the fields so as not to cause flooding from drainage. It became possible to provide a field storage management system, a storage management server and a field storage method.

Explanation of farmland and farmland storage management system (A), (b) and (c) are explanatory drawings of the field drainage tap Explanation of field storage management system Flow chart showing storage and drainage procedure of field storage management system Flow chart showing the procedure at the time of water storage of the field water storage method Flow chart showing the procedure at the time of drainage of the field water storage method

  Hereinafter, the field drainage tap, the field storage management system, the reservoir management server and the field storage method according to the present invention will be described.

  As shown in FIG. 1, in each field 1 where rice cultivation is carried out, the water in the field water tap 12 and the field 1 for guiding the water flowing into the water supply pipe 10 to the field 1 via the water conduit 11 A field drainage plug 22 for draining water to the drainage channel 20 through 21 is provided, and a repeater such as a Wi-Fi router 30 for relaying connection with the Internet 40 is provided 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 path 20 is provided in the drainage channel 20 near the field drainage 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 tap 12, and the communication unit of the field drainage plug 22 and the field management server 50 from the communication unit via the Wi-Fi router 30. Configured to be sent to. Also, 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 drainage plug 22 and transmitted from the communication unit to the field management server 50 via the Wi-Fi router 30. Is configured. 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 drainage plug 22.

  As shown in FIGS. 2 (a), 2 (b) and 2 (c), the field drainage plug 22 includes a casing 22C, a solar panel 22A attached to the upper part of the casing 22C in an adjustable manner, and the inside of the casing 22C. The battery 22D is housed in a battery 22D, an electric motor 22E, a cylindrical drainage weir 22H, an elevating body 22G for elevating the drainage weir 22H, a gear 22F for elevating the elevating body 22G, and a control board 22I. A communication interface for the Wi-Fi router 30 and a control unit for the electric motor 22E are incorporated in the control board 22I.

  The power generated by the solar panel 22A is stored in the battery 22D, and power is supplied from the battery 22D to the control board 22I and the electric motor 22E. As shown in FIG. 2 (c), when the drainage gutter 22H is driven to rise by the electric motor 22E, the water storage mode is set and the drainage water level from the farm field 1 rises, and as shown in FIG. 2 (b), the drainage gutter 22H Is driven down, the drainage mode is set, and the drainage water level from the field 1 falls.

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

  The field management server 50 is configured to remotely control the field water taps 12 and the field drainage taps 22 so as to perform water supply management and drainage management for each field 1 according to a rice growing schedule.

  For example, the farmland water level is managed at an appropriate water level in order to appropriately grow rice at each stage, such as rice planting stage, young panicle forming stage, cutting stage, heading stage, ripening stage, and harvesting stage. Therefore, after the height of the drainage weir 22H of the field drainage plug 22 is controlled by remote control according to each time, the feed valve of the field tap 12 is controlled by remote control and the water level detected by the water level sensor 2 is Water is supplied from the water supply pipe 10 until it reaches a predetermined water level, and thereafter, when a predetermined period has elapsed, the height of the drainage weir 22H is adjusted by remote control and drained to a predetermined water level as needed.

  Furthermore, the field management server 50 functions as a water storage management server that avoids the occurrence of flood damage by temporarily storing water in the field 1 when there is a large amount of rainfall, in addition to the management of water supply and drainage for growing rice described above. Is configured. Therefore, the field management server 50 communicates with the field drainage plugs 22 and the water level sensors 2 and 3 and stores the water storage command for storing water by rainfall in each field 1 or discharges the water stored in each field 1 It has a reservoir management unit 51 for transmitting a drainage command.

  That is, the water level sensor 2, which measures the water level of the field management server 50 (water storage management unit 51) and the field 1 or drainage channel 20, and transmits the measured water level to the field management server (water storage management server) 50 A field water storage management system 100 is configured by the field drainage taps 22 provided in each field 1 and 3.

  As shown in FIG. 3, the field drainage plug 22 operates the electric motor 22E and the drainage weir 22H that function as a drainage water level adjustment mechanism that adjusts the drainage water level of the field 1 and the drainage water level adjustment mechanism. The drainage water level control unit 223 which switches the drainage water level to either the normal drainage water level LL (see Fig. 2 (b)) or the storage water level HL higher than the normal drainage water level (see Fig. 2 (c)) Identification information is set, the communication unit 221 communicating with the water storage management server 50 and the water level sensor 3, the water storage judgment unit 222, and the water level information acquisition unit acquiring water level information of the drainage channel 20 by the water level measurement signal or data communication signal It has 224. The normal drainage water level LL is not a fixed water level, but refers to the water level appropriately set according to the above-mentioned rice planting period, young panicle forming period, short earing period, heading period, ripening period, harvest period, etc. .

  Storage of the water storage management server 50 as map information in which each field drainage plug 22 is uniquely identified by the unique identification information set in each of the plurality of field drainage taps 22 and each identification information is associated with the field position on the map It is stored in the department.

  Each of the water level sensors 2 and 3 includes a water level measurement unit that measures the water level of the farmland 1 or the drainage channel 20, and a transmission unit that transmits the water level measured by the water level measurement unit to an external device. Information is set. The specific identification information given to the water level sensors 2 and 3 and the position of the field 1 on the map or the position of the drainage channel 20 are stored in the storage unit of the water storage management server 50 as map information associated with each other.

  In the present embodiment, the measured water level is indirectly transmitted to the water storage management server 50 via the field water tap 12 via the transmission unit provided to the water level sensor 2 of the field 1, and the drainage channel 20 The measured water level is indirectly transmitted to the reservoir management server 50 via the nearby field drain plug 22 via the transmitter provided in the water level sensor 3. The measured water level may be directly transmitted to the reservoir management server 50 via the transmission unit. In each of the water level sensors 2 and 3, the water level measurement unit is connected to an apparatus having a transmitter such as the field water tap 12 and the field drainage plug 22, and the transmitter is configured to transmit water level information. Good.

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

  Specifically, the water storage management unit 51 determines whether to store water for each predetermined area specified from the rising speed of the field level and the identification information transmitted from at least each water level sensor 2, and determines to store the water. When it is performed, the storage command is configured to be transmitted to the corresponding field drainage plug 22, and the water storage judgment unit 222 of the field drainage plug 22 that has received the storage command adjusts the drainage weir 22H to the storage water level. It is configured.

  Based on the rising speed of the field level sent from each water level sensor 2 and the area, the area where there is a risk of flooding will be identified, and the required field of water storage will be identified quickly corresponding to the area become.

  In addition, when the water storage management unit 51 determines that water storage is necessary in any area, it determines that water storage is also required for a predetermined area lower than that area, and the field drainage plug 22 in the target area Is also configured to output a water storage command. If the area where the rising speed of the field level is high is known and stored in the field of the area and the area lower than the area, the occurrence of flood damage will be avoided more surely.

  In addition to the rising speed of the field level sent from the water level sensor 2, the water storage management unit 51 takes into account the state of the field water tap 12 and the weather information from the meteorological information providing server managed by the Japan Meteorological Agency or local government etc. It is preferable to be configured to output the water storage command. By opening the field water tap 12, it can be accurately determined whether the water level is rising or whether the water level is rising due to rainfall.

  For example, if it can be determined that rainfall is not occurring based on meteorological information, and the field water tap 12 is open, even if the water level rising speed of the field is a value required to output a storage command, The water level adjustment of the field 1 according to the original function of the field management server 50 is continued without issuing the water storage command.

  Also, for example, when rainfall occurs based on weather information and it can be determined that the amount of precipitation is greater than a predetermined amount of rainfall, if the field water tap 12 is opened, the field 1 according to the original function The water level adjustment is interrupted to close the field faucet 12, and a storage command is output to the field drainage plug 22.

  Then, the water storage management unit 51 determines that water storage is necessary, and outputs a water storage command. Then, the water storage management unit 51 drains water for each predetermined area specified from the water level and identification information of the drainage channels 20 transmitted from each water level sensor 3 at least. Is configured to output a drainage command to the field drainage plug 22 determined to be possible, and the water storage judgment unit 222 of the field drainage plug 22 receiving the drainage command receives the drainage gutter 22H. It is configured to adjust to the drainage level.

  If the drainage is simultaneously drained from the stored field 1 after the rainfall has stopped, there is a possibility that flooding may occur due to overflow of the drainage channel 20. Therefore, the position of the drainage channel 20 is grasped from the identification information of the water level sensor 3, and it is determined whether drainage from the field drainage tap is permitted for each area so that overflow does not occur based on the water level of the drainage channel 20 It is judged.

  When the water storage management unit 51 determines that drainage is possible in any of the regions, the water storage management unit 51 determines to preferentially drain the low elevation region to the high elevation region. If water is drained simultaneously from all of the field drainage plugs 22 in the drainable area, there is a possibility that the water overflowing from the drainage channel 20 may cause a secondary disaster. Therefore, by preferentially draining low elevation areas to high elevation areas, it is possible to safely drain the storage in each field to drainage.

  As shown in FIG. 4, in the field water storage method according to the present invention, a water amount estimation step of detecting the water level of the field or drainage channel and estimating the water amount for each area (S1), storing water based on the estimated water amount If it is judged that water storage is necessary in the water storage judgment step (S2) and the water storage judgment step to judge the necessity of water drainage, the drainage water level of the field drainage plug prepared for the field in the area lower than the corresponding area Water storage step (S3), and after the water storage step, a drainage judgment step of judging whether drainage is possible from the stored field based on the water level of the drainage channel (S4), the drainage judgment step If it is determined that drainage is possible, the drainage step (S5) of preferentially draining the low elevation area among the corresponding areas to the high elevation area is included.

  In the embodiment described above, the aspect in which the field drainage plugs 22 provided in the plurality of fields 1 are totally remotely controlled by the reservoir management server 50 has been described, but the field drainage plugs 22 provided in each field 1 are unique It may be configured to determine whether or not to store water, and to drain after storing water.

  The field drainage plug 22 is a drainage water level adjusting mechanism 22E, 22H for adjusting the drainage water level of the field 1, and a water storage judgment unit 222 for judging whether the precipitation needs to be stored in the field 1 or drainage is possible from the field 1. When the storage command is output from the storage judgment unit 222, the drainage water level adjustment mechanism 22E, 22H is operated to switch the drainage water level of the field 1 to a storage water level higher than the normal drainage water level, and the drainage command from the water storage judgment unit 222 Is outputted, and the drainage water level control mechanism 22E, 22H is operated to switch the drainage water level of the field 1 to a normal drainage water level, and a drainage water level control unit 223.

Further, the water storage judgment unit 222 is configured to judge whether the water storage is necessary or not by using the rising speed of the water level detected by the water level sensor 2 installed in the farmland 1 as an index. It is preferable not to output the water storage command if the rising speed of the water level is greater than a predetermined value, but to output the water storage command when continuing for a predetermined time.
The water storage judgment unit 222 is configured to judge whether water 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 drainage from field 1 inflows when drainage water level is high, there is a possibility of overflowing from drainage 20 and leading to flooding, but is drainage possible based on the water level of drainage 20 detected by water level sensor 3? By determining whether or not it is possible to prevent the occurrence of the secondary disaster due to the overflow from the drainage channel 20 in advance.

  As shown in FIG. 5, the reservoir judgment unit 222 monitors the water level based on the output from the water level sensor when there is rainfall (SA2) when the field water tap 12 is blocked (SA1), SA3) If it is judged that storage is necessary if the rising speed of the water level is an index and it exceeds the predetermined value (SA4), the drainage water level is switched to the storage water level (SA5). If it is not judged as rain in step SA2 and if the rising speed of the water level is less than 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 storage water level and in the water storage state (SB1), when the rainfall stops (SB2) and the predetermined conditions are satisfied (SB3), the drainage water level is switched to the normal water level Waste water treatment (SB4).

  Whether rainfall has occurred or not has stopped by obtaining weather information from a weather information provision server managed by the Japan Meteorological Agency or a local government via the Wi-Fi router 30 or separately provided It can be judged based on the output of The water level in the field is detected by the water level sensor 2 and obtained via the field water tap 12 and the Wi-Fi router 30. In the above embodiment, although the step of obtaining the rainfall information is taken, the control may be performed without the rainfall information. In this way, each field 1 can be configured to perform storage and drainage control individually.

  The embodiment described above is only an example of the present invention, and it is not intended that the technical scope of the present invention be limited by the description, and a field drainage tap, a field storage management system, and a concrete of a storage management server It is needless to say that the above configuration can be appropriately changed and designed within the scope of achieving the effects of the present invention.

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

Claims (12)

It is a field drainage tap that automatically drains the water stored in the field,
Drainage water level adjustment mechanism to adjust drainage water level of field,
The water storage judgment unit, which judges whether it is necessary to store precipitation in the field or whether drainage from the field is possible,
When the storage command is output from the storage judgment unit, the drainage water level adjustment mechanism is operated to switch the drainage level of the field to a storage water level higher than the normal drainage water level, and when the drainage judgment unit is output from the storage judgment unit A drainage level control unit that operates the drainage level adjustment mechanism to switch the drainage level of the field to a normal drainage level;
A field drain tap that is equipped with.   A water level information acquisition unit for acquiring water level information of a field is provided, and the water storage judgment unit uses the rate of increase of the water level of the field obtained by the water level information acquisition unit as an indicator to determine whether water storage is necessary. Field drainage tap according to 1).   A water level information acquisition unit for acquiring water level information of a drainage channel is provided, and the water storage judgment unit uses the water level of the drainage channel obtained by the water level information acquisition unit as an index to judge whether drainage is possible or not. Or the field drainage tap according to 2. It further comprises a communication unit that communicates with an external device,
The field drainage plug according to any one of claims 1 to 3, wherein the water storage judgment unit judges that water storage is necessary when receiving a water storage request from an external device via the communication unit.   The field drainage plug according to claim 4, wherein the water storage judgment unit judges drainage when receiving a drainage request from an external device via the communication unit. Drainage water level control mechanism to adjust drainage water level in the field, and drainage water level control to switch the drainage water level in the field to either normal drainage water level or storage water level higher than normal drainage water level by operating the drainage water level adjustment mechanism A field drainage tap including a unit and a communication unit for communicating with an external device, and in which unique identification information is set,
A water level sensor including a water level measurement unit that measures the water level of a field or drainage channel, and a transmission unit that transmits the measured water level to an external device, and in which unique identification information is set;
A water storage management server including a water storage management unit for communicating with each field drainage tap and each water level sensor and storing a water storage command for storing precipitation in each field, or for transmitting a drainage command for draining the water stored in each field;
Field storage management system equipped with.   7. The field according to claim 6, wherein the storage management unit is configured to determine whether to store water for each predetermined area specified from at least the rising speed of the field level and identification information transmitted from each water level sensor. Water storage management system.   The said water storage management part is comprised so that it may be judged that a water storage is required also to the predetermined area whose elevation is lower than the area, if it judges that a water storage is required in any area. Field storage management system.   After the water storage management unit determines that water storage is necessary, the water storage management unit at least determines whether drainage can be performed for each predetermined area specified from the water level and identification information of the drainage channel transmitted from each water level sensor. The field storage management system according to any one of claims 6 to 8, which is configured.   The field storage management system according to claim 9, wherein the storage management unit determines that drainage in a low elevation region is given priority to a high elevation region when it is determined that drainage is possible in any of the regions.   It communicates with the field drainage plug installed in each field and the water level sensor installed in each field or drainage used in the field storage management system according to any one of claims 6 to 10, and precipitation occurs in each field drainage tap Water storage management server that sends water storage command or drainage command to store water. A precipitation estimation step of detecting the water level of a field or drainage channel for each region to estimate the amount of precipitation;
A water storage judgment step of judging the necessity of water storage based on the estimated precipitation amount;
A storage step of storing the water by raising the drainage water level of the field drainage plug provided in the field of the corresponding area and an area lower in elevation than the corresponding area if it is determined that the storage is necessary in the storage judgment step;
The drainage judgment step which judges whether drainage is possible from the stored field after the water storage step based on the water level of the drainage,
When it is judged that drainage is possible in the drainage judgment step, a drainage step in which a low elevation region of the corresponding regions is preferentially drained to a high elevation region,
Field storage methods including:

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