Paddy field water withdrawal management system

Abstract

To provide a paddy field water withdrawal management system that can easily manage the timing of water management work for paddy fields.SOLUTION: A system comprises: a blocking means that is arranged at multiple locations on a waterway leading to a rice paddy and blocks the waterway; a control device that controls the opening and closing of the waterway by the blocking means; and a terminal device having a display means, the terminal device being configured to be able to display multiple rice paddies based on previously input position information of the multiple rice paddies, and displaying the open / closed state of the waterway by each of the blocking means of the waterway leading to the selected rice paddy and the accumulated temperature since the crop was planted, when an arbitrary rice paddy is selected from the multiple displayed rice paddies.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a management system capable of easily managing the water diversion to paddy fields.

Background Art

[0002] Patent Document 1 discloses a paddy field water diversion management system in which a plurality of paddy fields are displayed on a terminal device, and when an arbitrary paddy field is selected, the water channels and weirs related to the selected paddy field are displayed, and the opening and closing of the weirs can be remotely controlled.

[0003] According to this device, even if the operation of a plurality of weir plates is required to adjust the water level of each paddy field, the water diversion to each paddy field can be easily managed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, when performing the water management work of paddy fields, the accumulated temperature from sowing serves as an index for the appropriate timing to be executed. However, when the sowing timing is different, the accumulated temperature also differs for each field, so the management is not easy.

[0006] Therefore, an object of the present invention is to provide a paddy field water diversion management system capable of easily managing the timing for performing the water management work of each paddy field.

Means for Solving the Problems

[0007] Such an object of the present invention is It is provided with blocking means arranged at a plurality of locations on a waterway leading to a paddy field for blocking the waterway, a control device for controlling the opening and closing of the waterway by the blocking means, a display means, and a terminal device having an operating means for operating the blocking means. The terminal device is configured to be able to display a plurality of paddy fields based on pre-input position information of a plurality of paddy fields. When an arbitrary paddy field is selected from the plurality of displayed paddy fields, it displays the opening and closing state of the waterway by each of the blocking means of the waterway leading to the selected paddy field and the integrated temperature from the cultivation of the crop, which is achieved by a paddy field water diversion management system.

[0008] According to the present invention, when a paddy field to be managed is selected on the terminal device, an operating means for operating the blocking means and the integrated temperature are displayed, so that it is possible to easily manage the timing of executing the water management work for each paddy field with the integrated temperature as a reference.

[0009] In a preferred embodiment of the present invention, the terminal device is connected to the Internet. For the plurality of paddy fields, when the sowing date of each paddy field is acquired, the integrated temperature from the sowing date is calculated for each paddy field based on the weather information acquired from the Internet.

[0010] According to this preferred embodiment of the present invention, since the integrated temperature is calculated based on the weather information acquired from the Internet when the sowing date of each paddy field is acquired, the administrator does not need to calculate by himself / herself, and it is possible to easily manage the timing of executing the water management work for each paddy field with the integrated temperature as a reference.

[0011] In a more preferred embodiment of the present invention, the blocking means is provided with a temperature sensor for detecting the air temperature. The terminal device acquires and records the air temperature detected by the temperature sensor. For the plurality of paddy fields, when the sowing date of each paddy field is acquired, the integrated temperature from the sowing date is calculated for each paddy field based on the recorded air temperature.

[0012] According to this preferred embodiment of the present invention, since the integrated temperature is calculated based on the actual measured temperature instead of the wide-area weather information, it is possible to accurately grasp the integrated temperature and easily manage the timing of executing the water management work for each paddy field. [Effect of the Invention]

[0013] According to the present invention, it becomes possible to easily manage the timing for performing water management work for each paddy field. [Brief Description of the Drawings]

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Mode for Carrying Out the Invention

[0015] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0016] FIG. 1 is an overall configuration diagram of a paddy field water diversion management system 1 according to a preferred embodiment of the present invention, and FIG. 2 is a schematic plan view showing the positional relationship between a plurality of paddy fields whose water diversion states are managed by the paddy field water diversion management system 1 shown in FIG. 1, waterways extending to each paddy field, and each weir arranged in the waterways.

[0017] The paddy fields whose water diversion is managed by the paddy field water diversion management system 1 according to the present embodiment are a total of five, namely F1 to F5 shown in FIG. 2, and water taken from the river 2 located east of the five paddy fields F1 to F5 into the waterway 3 or the waterway 6 located south of the waterway 3 is supplied to each paddy field F1 to F5. The waterways 3 or 6 communicate with each paddy field F1 to F5. Note that the paddy fields and waterways whose water diversion is managed by the paddy field water diversion management system of the present invention are not limited to these.

[0018] In FIG. 2, the portions of the waterways 3 and 6 that are visible from above are shown in dark gray, and the portions of the waterways 3 and 6 that are covered and not visible from above are shown in light gray.

[0019] In the present embodiment, the paddy field water diversion management system 1 includes two weirs M1 and M2 arranged near the river 2, another seven weirs S1 to S6, an unmanned aerial vehicle 5 (so-called drone), and a terminal device 4 (see FIG. 1).

[0020] As shown in Fig. 2, weirs M1, S1 to S3, and S6 are arranged on the water channel 3 so as to be able to block the water channel 3, and weirs M2, S4, and S5 are arranged on the water channel 6 so as to be able to block the water channel 6.

[0021] Each weir includes a weir plate 7 that blocks the water channel 3 or 6, a weir plate drive motor 8 that drives the weir plate 7 up and down, a control device 12 that drives the weir plate drive motor 8, a communication unit 9 having a router, and a temperature sensor 60 that detects the air temperature. The control device 12 has a central processing unit and a storage unit in which various data are stored.

[0022] When the weir plate 7 is moved downward by the drive of the weir plate drive motor 8, the water channel 3 or 6 is blocked (dammed up), and when the weir plate 7 is moved upward, the water channel 3 or 6 is opened (released), and it is configured such that water can pass below the weir plate 7. Hereinafter, the position of the weir plate 7 where the water channel 3 is blocked is referred to as the "blocking position", and the position of the weir plate 7 where the water channel 3 is opened is referred to as the "opening position". In addition, the state in which the water channel 3 is blocked by the weir plate 7 of each weir is referred to as the "blocking state", and the state in which the water channel 3 is not blocked by the weir plate 7 of each weir is referred to as the "opening state". Also, the weir plate of each weir is an example of the "blocking means" according to the present invention.

[0023] Weirs S1 to S5 are each located on the water channel 3 or 6, in the vicinity of the water inlet to any one of the paddy fields F1 to F5, and each weir plate 7 of weirs S1 to S5 is configured to be able to block the water inlet to the paddy fields F1 to F5. That is, each water channel 3, 6 leads to the paddy fields F1 to F5 and includes the water inlets to each of the paddy fields F1 to F5.

[0024] As shown in Fig. 2, the water channel 3 branches at the branch point 10. We will proceed with the description by designating the portion of the water channel 3 extending westward from the branch point 10 as the water channel 3a and the portion of the water channel 3 located south of the branch point 10 as the water channel 3b. The weir plate S6 is located immediately south of the branch point 10 of the water channel 3.

[0025] When the weirs M1 and S1 are in the open state, water is diverted from the water channel 3 (specifically, the water channel 3a) to the paddy field F1. When the weirs M1, S6, and S2 are in the open state, water is diverted from the water channel 3 (specifically, the water channel 3b) to the paddy field F2. When the weirs M1, S6, and S3 are in the open state, water is diverted from the water channel 3 (specifically, the water channel 3b) to the paddy field F3. When the weirs M2 and S4 are in the open state, water is diverted from the water channel 6 to the paddy field F4. When the weirs M2 and S5 are in the open state, water is diverted from the water channel 6 to the paddy field F5. In the following description, information about the weirs that need to be in the open state in order to divert water to each paddy field (in other words, information about the weirs on the water channels leading to each paddy field until water is diverted to them) is referred to as "necessary weir information". For example, the necessary weir information for the paddy field F2 is the weirs M1, S6, and S2.

[0026] As shown in FIG. 1, the unmanned aircraft 5 includes a GNSS receiver 50 that receives radio waves from artificial satellites, an imaging device 51 capable of taking images, a first angle adjustment motor 52 that changes the angle of the imaging device 51 in the yaw direction, a second angle adjustment motor 53 that changes the orientation of the imaging device 51 in the pitching direction, an angle detection sensor that detects the rotational positions of the rotors of the first and second angle adjustment motors 52 and 53, an azimuth sensor that detects the azimuth of the aircraft body 5, a communication unit capable of transmitting and receiving information, and a control unit that controls the rotational speed of each rotor 31 of the unmanned aircraft 5, and a communication unit 59. The angle detection sensor serves as angle detection means for detecting the angle (orientation) of the imaging device 51.

[0027] The terminal device 4 is a tablet-type terminal having a control unit having a processing unit having a central processing unit that performs various operations and a storage unit in which various programs and data are stored, a touch panel type display 40, a communication unit capable of transmitting and receiving information, and analog sticks 41 and 42. The display 40 is an example of the "display means" according to the present invention.

[0028] The terminal device 4 stores in advance map information, the names and location information of five paddy fields F1 to F5 that are targets of water diversion management (hereinafter, the location information of the paddy fields is referred to as "paddy field information"), the location information of waterways 3 and 6 extending to each of the paddy fields F1 to F5 (hereinafter, referred to as "waterway information"), the location information of the weir plates 7 of each of the weirs M1, M2, and S1 to S6 (hereinafter, referred to as "weir plate information"), the above-mentioned necessary weir information, and the type (paddy rice, taro, Chinese artichoke, etc.), variety (Koshihikari, Hitomebore, etc.), sowing date of the crops planted in each of the paddy fields F1 to F5, and the area information of each of the paddy fields F1 to F5. In this embodiment, as the paddy field information, the location information of a plurality of points on the contour of each of the paddy fields F1 to F5 is input in advance, and the positions of the paddy fields are displayed on the display 40 by a thick frame connecting these points (see FIG. 3). Further, in this embodiment, as the waterway information, the location information of a plurality of points located on each of the waterways 3 and 6 is input in advance, and a line connecting these points is displayed on the display 40 by a dashed line (see FIGS. 5 to 7). The waterway information also includes the location information of the water inlets of each of the paddy fields F1 to F5 where any one of the weirs S1 to S5 is provided. Note that the paddy fields that are the targets of water diversion management are the paddy fields for which the paddy field information has been input.

[0029] The communication unit of the terminal device 4 and the communication units 9 of each of the weirs M1, M2, and S1 to S6 having routers are configured to be able to communicate with each other using the Internet. When the communication unit of the terminal device 4 transmits an operation signal generated by a pressing operation on the display 40 to the communication units 9 of each of the weirs M1, M2, and S1 to S6, the control device 12 drives the weir plate drive motor 8 to switch the weir plate 7 of each weir from the blocking position to the open position or from the open position to the blocking position.

[0030] When the position of the weir plate 7 is switched, as shown in FIG. 1, the control device 12 of each weir is configured to transmit (output) to the terminal device 4, via the communication unit 9, the identification information of the weir plate 7 (information about which weir the weir plate 7 belongs to) together with the opening / closing information of the weir plate 7 (information about the opening / closing state, i.e., information about whether it is in the blocking state or the open state).

[0031] When receiving the opening / closing information of the weir plate 7 of each weir, the control unit of the terminal device 4 is configured to store the opening / closing information of the weir plate 7 in its storage unit. Therefore, the terminal device 4 can determine whether each weir is in a blocked state or an open state based on the opening / closing information stored in the storage unit and display it on the display 40 (see FIG. 4). Note that it is not always necessary for the communication unit of the terminal device 4 and the communication units 9 of each weir M1, S1 to S6 to communicate with each other using the Internet, and they may be configured to be able to communicate with each other by short-range wireless communication or the like. Further, an opening / closing state detection sensor for detecting the opening / closing state of the water channel may be separately provided for each weir, and the control device 12 may be configured to transmit the detection signal output from this opening / closing state detection sensor, that is, the opening / closing information, to the terminal device 4 together with the identification information of the weir plate via the communication unit 9. The opening / closing state detection sensor is composed of, for example, a rotation position sensor that detects the rotation position of the rotor of the weir plate drive motor 8 or the like.

[0032] On the other hand, the communication unit of the terminal device 4 and the communication unit of the unmanned aircraft 5 are configured to be able to transmit and receive information to and from each other by short-range wireless communication, and the terminal device 4 also serves as a transmitter (so-called "propo") that transmits an operation signal to the unmanned aircraft 5 by tilting operations of the left and right analog sticks 41, 42.

[0033] Specifically, when the left analog stick 41 is tilted to one side left or right, the unmanned aircraft 5 turns left or right, and when the left analog stick 41 is tilted to one side forward or backward, the unmanned aircraft 5 moves forward or backward.

[0034] Also, when the right analog stick 42 is tilted to one side left or right, the unmanned aircraft 5 moves to one side left or right, and when the right analog stick 42 is tilted to one side forward or backward, the unmanned aircraft 5 ascends or descends.

[0035] While the unmanned aircraft 5 is flying based on the operation by the administrator, the terminal device 4 is configured to acquire from the unmanned aircraft 5 the video captured by the imaging device 51, the position information of the unmanned aircraft 5 acquired by the GNSS receiver 50, the angle information of the imaging device 51 detected by the angle detection sensor, and the azimuth information of the airframe 5. The control unit of the terminal device 4 reads and executes a specific program stored in the storage unit, and based on these information acquired from the unmanned aircraft 5, the map information, paddy field information, waterway information, and weir plate information stored in the storage unit of the terminal device 4, it identifies the positions of the five paddy fields F1 to F5, the positions of the waterways 3 and 6, and the position of the weir plate in the video. As shown from FIG. 3 and later, the terminal device 4 is configured to be able to display on the display 40 a real-time video (overlay display) in which the paddy field information, the waterway information, and the weir plate information are synthesized on the video captured by the imaging device 51. This synthesis technology is also used, for example, in the TV broadcast of an American football game to reflect characters such as "1ST&10" and "2ND&10" and arrows indicating their positions on the field (see Japanese Patent Application Laid-Open No. 2018-509016, etc.).

[0036] Note that it is not always necessary to provide the analog sticks 41 and 42 to the terminal device 4, and the unmanned aircraft 5 may be configured to be controllable by a pressing operation on the touch panel type display 40.

[0037] FIG. 3 is a drawing showing a state in which the paddy fields F1 to F5 that are the targets of water diversion management are highlighted on the display 40 of the terminal device 4, and FIG. 4 is a drawing showing a state in which an arbitrary paddy field F2 is selected from among the plurality of paddy fields F1 to F5 that are the targets of water diversion management on the display 40 of the terminal device 4.

[0038] Also, FIG. 5 is a drawing showing the display when the waterway 3b is selected on the display 40 of the terminal device 4.

[0039] Based on the operation (control) of the administrator, when the flight of the unmanned aircraft 5 is started and the area shown in FIG. 2 enters the angle of view of the imaging device 51, as shown in FIG. 3, the positions (contours) of the paddy fields F1 to F5 (which are the targets of water diversion management) within the video captured by the imaging device 51 are each highlighted in the display 40 by a thick frame (actually a red thick frame). In other words, in the video captured by the imaging device 51 and displayed on the display 40 of the terminal device 4, a thick frame indicating the positions of the paddy fields F1 to F5 that are the targets of water diversion management by the paddy field water diversion management system 1 is overlaid and displayed.

[0040] The area projected onto the display 40 shown in FIGS. 3 and 4 is the area shown as a schematic plan view in FIG. 2. It is not necessarily necessary to configure the strings F1 to F5, which are the names of each paddy field and are input in advance, to be overlaid and displayed above each paddy field F1 to F5 as shown in FIG. 3.

[0041] In the present embodiment, in the state of the screen shown in FIG. 3, when an arbitrary paddy field (for example, F2) is pressed (tapped) and selected from among the plurality of paddy fields F1 to F5 that are the targets of water diversion management on the display 40, as shown in FIG. 4, the position of the water channel 3 up to the water inlet of the selected paddy field F2 is overlaid and displayed by a dashed line (actually a blue dashed line).

[0042] At the same time, for the water diversion to the selected paddy field F2, the weirs (the weirs arranged on the water channel up to the water diversion to the selected paddy field F2) M1, S6, and S2 that need to be in the open state and the positions of the weirs in the vicinity thereof are each overlaid and displayed by white circles or black circles based on the pre-input position information.

[0043] Based on the opening and closing information of the weir plates output (transmitted) from the control device 12 of each weir and stored in the storage unit of the terminal device 4, the weirs in the open state are displayed by white circles, and the weirs in the blocked state are displayed by black circles. That is, the terminal device 4 displays the opening and closing states of each weir transmitted from the control device 12 by white circles or black circles.

[0044] Therefore, by simply pressing (touching) any paddy field on the display 40, the administrator can grasp at a glance the water channels extending to any paddy field and the opening / closing states of each weir provided on the water channels (whether the water channel is blocked or opened by the weir. More specifically, whether it is in an open state or a blocked state), which is highly convenient. When any paddy field F2 is pressed and selected, the entire water channel 3 for diverting water to the selected paddy field F2 may be configured to be overlaid and displayed with a dashed line.

[0045] Also, in this embodiment, when any paddy field (for example, F2) is pressed and selected, in addition to the display of the thick frame indicating the position of the paddy field and the display of the dashed line indicating the position of the water channel, as shown in FIG. 4, a water diversion start switch 13 for starting water diversion to the selected paddy field F2 and information about the selected paddy field F2, that is, the type, variety, sowing date of the crop planted in the paddy field F2, the area of the paddy field F2, and the accumulated temperature from sowing in the related paddy field F2 are overlaid and displayed in the balloon. In this embodiment, the information about the selected paddy field is input to the terminal device 4 in advance as described above. The accumulated temperature is displayed in the form of a bar graph 14 indicating the progress ratio until the harvesting time in addition to the text data. Above the bar graph 14, the current accumulated temperature and the accumulated temperature serving as a reference for waterlogging are displayed, and below, the estimated heading time and the estimated harvesting time are displayed at positions on the bar graph 14 adjusted according to the increasing trend of the accumulated temperature.

[0046] The accumulated temperature is calculated by obtaining the sowing date by inputting it into the terminal device 4 or the like, and then obtaining and calculating the weather information based on the position information of the paddy field F2 from the Internet 30, or by obtaining it with the temperature sensors 60 mounted on the weirs S1 to S6 and calculating it based on the temperature information recorded together with the date information. In this way, by pressing and selecting any paddy field, information such as the variety and accumulated temperature, which is useful when determining the water diversion time and the water level of the paddy field surface, can be displayed on the display 40, making it possible to facilitate water diversion management.

[0047] Furthermore, in the present embodiment, when the water channel 3b located south of the branch point 10 (see FIG. 2) among the water channels 3 shown by the broken line is pressed and selected in the state of the screen shown in FIG. 4, as shown in FIG. 5, all the paddy fields F2 and F3 that are the paddy fields subject to water diversion management and are supplied with water (diverted) by the water channel 3b are overlaid and displayed (filled) in gray, and the water channel 3b in the video is configured to be overlaid and displayed (highlighted) with a broken line throughout.

[0048] Furthermore, although not shown in the figure, when the portion east of the branch point 10 of the water channel 3 (the upstream portion before the branch) is pressed and selected, all the paddy fields F1 to F3 diverted by the water channel 3 are overlaid and displayed in gray, and the entire water channel 3 including the water channel 3a is configured to be overlaid and displayed (highlighted) with a broken line.

[0049] Therefore, it is possible to easily grasp which paddy fields will be affected when the weir S6 arranged immediately south of the branch point 10 of the water channel 3 or the weir M1 arranged at the position of the main body of the water channel 3 is switched to the blocked state or the open state. Thus, in the present embodiment, by selecting an arbitrary paddy field, it is possible to grasp at a glance the water channel extending to that paddy field and the opening / closing state of the weirs arranged on the water channel, and by selecting a water channel, it is possible to grasp at a glance all the paddy fields affected by the selected water channel. Therefore, it is very convenient for water diversion management of a plurality of paddy fields.

[0050] FIG. 6 is a drawing showing a state in which an arbitrary weir S4 displayed on the display 40 shown in FIG. 4 or FIG. 5 is selected. Hereinafter, a method of individually switching an arbitrary weir (for example, S4) from the open state to the blocked state or from the blocked state to the open state will be further described.

[0051] For example, when it is desired to switch an arbitrary weir S4 from a closed state to an open state and divert water to the paddy field F4, the administrator first presses and selects the weir S4 in a state where the weir S4 to be switched to the open state is displayed on the display 40 as shown in FIG. 4 or FIG. 5.

[0052] When the weir S4 for which the opening / closing state is to be switched is selected, as shown in FIG. 6, the water channel 6 in which the selected weir S4 is arranged is overlaid and displayed by a dashed line, and an open switch 15 for switching the weir S4 to the open state and a cutoff switch 16 for switching the weir S4 to the closed state are configured to be displayed in a balloon. Therefore, the administrator can instruct the opening of the weir S4 by pressing and turning on the open switch 15.

[0053] When an instruction to open an arbitrary weir S4 is given, the control unit of the terminal device 4 transmits an operation signal to switch the weir S4 to the open state.

[0054] Upon receiving this operation signal, the control device 12 of the weir S4 drives the weir plate drive motor 8 to raise the weir plate 7 and switch it to the open position. As a result, the water flowing through the water channel 6 is diverted (supplied) to the paddy field F4.

[0055] The method of switching the weir S4 to the open state and diverting water to the paddy field F4 has been described above. However, when the main weir M2 of the water channel 6 is in the closed state, in the same procedure, the weir M2 is selected, the open switch 15 is pressed and turned on, and (in addition to the weir S4) the weir M2 is also switched to the open state, so that water can be diverted to the paddy field F4.

[0056] In this way, when S4 is pressed and selected on the display 40 with the weir S4 switched to the open state, as described above, the open switch 15 and the cutoff switch 16 are displayed in a balloon, so that at any timing, the cutoff switch 16 can be pressed and turned on to instruct the cutoff of the weir S4.

[0057] When the interruption of any weir S4 is instructed, the control unit of the terminal device 4 transmits an operation signal to switch the weir S4 to the interrupted state.

[0058] Upon receiving this operation signal, the control device 12 of the weir S4 drives the weir plate drive motor 8 to lower the weir plate 7 and switch it to the interrupted position. As a result, the water diversion to the paddy field F4 ends.

[0059] In this embodiment, when any of the arbitrarily selected weirs M1, M2, S1 to S6 that are pressed and selected on the display 40 are in the interrupted state, as shown in FIG. 6, the interruption switch 16 is grayed out and configured to be inoperable.

[0060] Conversely, when any of the arbitrarily selected weirs M1, M2, S1 to S6 that are pressed and selected on the display 40 are in the open state, the open switch 15 is grayed out and configured to be inoperable.

[0061] As described above, the method of switching the opening and closing states of any (individual) weir has been explained. In this embodiment, further, as follows, by operating the water diversion start switch 13 shown in FIG. 4, it is possible to easily start or end the water diversion to any of the paddy fields F1 to F5.

[0062] FIG. 7 is a drawing showing the state after the water diversion start switch 13 displayed on the display 40 shown in FIG. 4 is turned on.

[0063] When it is desired to start water diversion to an arbitrary paddy field (for example, F2), the administrator presses and selects the paddy field F2 to which water diversion is desired, which is displayed on the display 40. After displaying the water diversion start switch 13 as shown in FIG. 4, by pressing and turning on the water diversion start switch 13, it is possible to instruct the water diversion to the paddy field F2.

[0064] When water diversion to any paddy field, for example, paddy field F2, is instructed, first, the control unit of the terminal device 4 reads out the necessary weir information about paddy field F2 stored in the storage unit. The necessary weir information about paddy field F2 is, as described above, weir M1, weir S6, and weir S2.

[0065] Next, the control unit of the terminal device 4 determines, based on the opening / closing information obtained from the control devices 12 of the respective weirs M1, S6, and S2, which need to be in an open state for water diversion to paddy field F2, whether the current opening / closing state is open or closed.

[0066] After thus determining the opening / closing states of the respective weirs M1, S6, and S2 related to the necessary weir information, the control unit of the terminal device 4 switches the weirs that are in a blocked state (the weir plate 7 is in the blocked position) among the respective weirs M1, S6, and S2 to an open state.

[0067] For example, in the state shown in FIG. 4, when the water diversion start switch 13 is pressed and turned on, among the respective weirs M1, S6, and S2 related to the necessary weir information, the weirs S2 and S6, which are overlaid and indicated by black circles, that is, the weirs S2 and S6 in a blocked state, are all switched to an open state as shown in FIG. 7.

[0068] Specifically, an operation signal for switching to an open state is transmitted from the terminal device 4 to the weirs S2 and S6. Based on this operation signal, the control devices 12 of the weirs S2 and S6 drive the weir plate drive motor 8 to raise the weir plate 7 and transmit the opening / closing information of the weir plate 7 to the terminal device 4. As a result, the water passing through the weirs M1, S6, and S2 is supplied (diverted) to the paddy field F2, and as shown in FIG. 7, the weirs S2 and S6 are also switched to an overlay display by white circles on the display 40.

[0069] In the display state shown in FIG. 4, among the weirs M1, S6, and S2 related to the necessary weir information, since the weir M1 was in the open state, control was performed to switch only the weirs S6 and S2 to the open state. However, when the weir M1 was in the blocked state at the time when water diversion to an arbitrary paddy field F2 was instructed, control was also performed to switch the weir M1 to the open state.

[0070] As described above, in this embodiment, the weirs located on the water channel until water is diverted to the paddy field (for example, F2) for which water diversion is instructed and that are in the open state are configured to be switched to the open state all together (collectively). Therefore, it is not necessary to perform an operation of individually instructing the opening for each weir that needs to be switched to the open state on the terminal device 4, and labor can be saved.

[0071] In addition, since all the weirs located on the water channel until water is diverted to the paddy field (for example, F2) for which water diversion is instructed are automatically switched to the open state, it is possible to prevent accidentally operating a weir that does not require an opening / closing operation.

[0072] Note that when a paddy field being watered is selected, the water diversion start switch 13 is grayed out and configured not to be able to instruct water diversion start (not to accept a pressing operation). Also, the reference numerals in the drawing indicating the open switch 15, the block switch 16, and the water diversion start switch 13 are not actually displayed on the display 40.

[0073] On the other hand, in this embodiment, a switch for collectively switching the weirs M1, S6, and S2 related to the necessary weir information of an arbitrary paddy field (for example, F2) to the blocked state is not provided. Therefore, when it is desired to end water diversion to an arbitrary paddy field being watered, for example, paddy field F2, at least one of the weirs M1, S6, and S2 related to the necessary weir information needs to be individually switched to the blocked state by operating the above-described block switch 16.

[0074] Thus, when switching to the cutoff state, since it is configured to require a cutoff operation for each weir, for example, when ending the water diversion to the paddy field F2, it is possible to prevent a situation where the cutoff state is unintentionally switched to the main weir M1 and the water diversion to the paddy field F1 during water diversion stops.

[0075] According to the present embodiment, when a paddy field to be managed is selected on the terminal device 4, the position of the water channel leading to the selected paddy field (for example, F2), the positions of the weirs M1, S6, and S2 arranged on this water channel, and the open / closed state of the water channel by these weirs are displayed on the terminal device 4 by white circle or black circle symbols. Therefore, when managing the water levels of each paddy field, it is possible to easily grasp which weir should be operated and whether water diversion is possible. Thus, the water diversion to each paddy field can be easily managed.

[0076] Further, according to the present embodiment, a video in which the position information of a plurality of pre-input paddy fields, the position information of the water channels 3 and 6 leading to each paddy field F1 to F5, and the position information of the weirs M1, M2, S1 to S6 are synthesized is displayed on the terminal device 4 in the video captured by the imaging device 51 provided on the unmanned aerial vehicle 5. Therefore, the water diversion of the plurality of paddy fields F1 to F5 can be easily managed, and without having to visit each paddy field, it is possible to overlook the entire area of each paddy field F1 to F5 on the terminal device 4 and visually confirm the amount of water on the paddy field surface.

[0077] Furthermore, according to the present embodiment, when an operation (pressing operation of the water diversion start switch 13) for instructing water diversion is performed on the selected paddy field (for example, F2) selected from among the plurality of paddy fields F1 to F5, among the weirs M1, S6, and S2 on the water channel 3 up to the paddy field F2 to which water is diverted, the weirs (the weirs S6 and S2 shown by black circles in FIG. 4) that block the water channel 3 are configured to be collectively opened. Therefore, it is not necessary to perform an operation (pressing operation of the opening switch 15 after selecting each weir) for instructing opening for each weir S6 and S2, and the labor of the operation can be saved.

[0078] Further, according to this embodiment, when ending the water diversion to the paddy field, an operation (pressing operation of the cutoff switch 16) for instructing to cutoff the water channel is required for each weir (specifically, for each weir plate 7). Therefore, it is possible to prevent a situation where the water supply to other paddy fields during water diversion is accidentally stopped.

[0079] Furthermore, according to this embodiment, since the video acquired by the imaging device 51 provided in the unmanned aircraft 5 is displayed on the display 40 of the terminal device 4, it is possible to grasp at a glance the crop situation, the situation of bird and animal damage, and the intrusion of wild birds and animals into each paddy field.

[0080] FIG. 8 is an overall configuration diagram of the paddy field water diversion management system 1 according to another preferred embodiment of the present invention, and FIG. 9 is a drawing showing a state where an arbitrary paddy field F2 is selected on the display 40 of the terminal device 4 shown in FIG. 8.

[0081] Further, FIG. 10 is a drawing showing the video displayed on the display 40 when the switch of "drone" in the balloon shown in FIG. 9 is operated.

[0082] In this embodiment, map information, paddy field information, water channel information, weir plate information, required weir information, and information on the type of crop (paddy rice, taro, Chinese radish, etc.), variety, planting date, and area of each paddy field F1 to F5 are pre-input to the management server 20 and stored in the storage unit 24. In addition, the video captured by the imaging device 51, the information on the angle of the imaging device 51 detected by the angle detection sensor, the position information of the unmanned aircraft 5, and the orientation information of the airframe 5 are transmitted to the management server 20 via the transmitter 54, the transmission device 55, and the Internet 30.

[0083] By reading and executing a specific program stored in the storage unit 24 by the control unit 21 of the management server 20, based on this information acquired from the unmanned aircraft 5 and the map information, paddy field information, waterway information, and weir plate information stored in the storage unit 24 of the management server 20, the positions of each paddy field F1 to F7, the positions of the waterways 3 and 6, and the positions of the weir plates M1, M2, S1 to S8 in the video are specified. The paddy field information, the waterway information, and the weir plate information are synthesized (reflected) in the video captured by the imaging device 51, and the synthesized video is transmitted to the terminal device 4, so that the synthesized video can be displayed on the display 40 of the terminal device 4. The terminal device 4 can acquire the video via software 28 such as an app or a browser.

[0084] Furthermore, the communication unit 27 of the management server 20 and the communication units 9 of each weir having a router are configured to be able to communicate with each other via the Internet 30.

[0085] When the water intake start switch, the opening switch 15, or the cutoff switch 16 on the video displayed by the software 28 on the display 40 of the terminal device 4 is operated, the operation signal is transmitted from the terminal device 4 to the management server 20, and an operation signal is transmitted from the management server 20 to the control device 12 of each weir, whereby the opening / closing state of each weir is changed.

[0086] Information (opening / closing information) about the opening / closing state of each weir after the change is transmitted from the control device 12 to the management server 20 together with the identification information of the weir plate 7. As a result, a video reflecting the opening / closing information of the weir after the change is configured to be transmitted from the management server 20 to the terminal device 4.

[0087] Also, when a paddy field, a weir, or a waterway is selected and operated on the display 40 of the terminal device 4, an operation signal is transmitted from the terminal device 4 to the management server 20, and a video reflecting the operation is transmitted from the management server 20 to the terminal device 4, and the received video is displayed on the display 40.

[0088] Furthermore, in the present embodiment, a plurality of administrators of the same company (company, agricultural cooperative, etc.) are configured to be able to manage their respective paddy fields using each terminal device 4. As shown in FIG. 9, on the display 40 of the terminal device 4, the positions (contours) of the paddy fields F6 and F7 in charge of other administrators are highlighted within the display 40 by thick frames of a color different from that of the paddy fields F1 to F5 managed by the user (actually, thick brown frames).

[0089] In addition, in the present embodiment, except when having the authority, the administrators of the paddy fields F1 to F5 are configured not to be able to switch the water diversion state to the paddy fields F6 and F7 in charge of other administrators. That is, depending on the terminal device 4 of the administrator who manages the paddy fields F1 to F5, the opening and closing operations of the weirs S8 and S7 arranged at the water inlets on the water channel 3 to the paddy fields F6 or F7 cannot be performed.

[0090] On the other hand, in the present embodiment, when an arbitrary paddy field, for example, the paddy field F2, is pressed on the display 40 of the terminal device 4, the menu shown in FIG. 9 is configured to be displayed, and the administrator can press the switches of "Water channel confirmation", "Water diversion start", "Crop variety display", and "Drone" displayed in the menu.

[0091] The "Water diversion start" switch is a switch having the same function as the water diversion start switch 13 in the above embodiment. When "Water diversion start" is pressed, the water diversion to the paddy field F2 is started.

[0092] When "Crop variety display" is pressed, the information on the type, variety, sowing date of the crop, and the area of the paddy field F2 shown in FIG. 4 of the above embodiment is displayed in the balloon.

[0093] The "drone" switch is a switch for flying the unmanned aircraft 5 to the selected paddy field (e.g., F2). When the "drone" switch is pressed, the position information of the paddy field F2 pre-input to the management server 20 is transmitted to the unmanned aircraft 5, and a close-up video (live video) of the paddy field F2 taken by the imaging device 51 of the unmanned aircraft 5 flying to a position directly above the selected paddy field F2 is displayed on the display 40.

[0094] The unmanned aircraft 5 is not configured to stay at one location above the paddy field F2, but is configured to automatically fly over the entire area above the paddy field F2 in a continuous, seamless manner (as seen from above), like a single stroke, in a zigzag pattern.

[0095] Here, the management server 20 calculates in advance a flight route for the unmanned aircraft 5 to fly over the entire area of each paddy field F1 to F7 when the "drone" switch is pressed, and stores the flight route information in the storage unit 24. When the "drone" switch is operated for an arbitrary paddy field, e.g., paddy field F2, the flight route information for the paddy field F2 is read out and transmitted to the unmanned aircraft 5 via the Internet 30, the transmission device 55, and the transmitter 54.

[0096] When receiving the flight route information from the management server 20, the control unit 56 of the unmanned aircraft 5 controls the rotational speed of each rotor 31 so that the position of the aircraft 5 acquired by the GNSS receiver 50 follows this flight route, and flies the unmanned aircraft 5 to move in a zigzag pattern in a single stroke as seen from above over the paddy field F2.

[0097] Therefore, by pressing the "drone" switch, the administrator can check the state of each individual plant in the paddy field under their responsibility on the display 40 (see Fig. 10), and thus can utilize the state of each plant in the paddy field to adjust the water level of the paddy field water.

[0098] Also, while the drone is flying in a zigzag pattern when viewed from above, if any one point in the farm field displayed on the terminal device 4 is touched (tapped), the drone 5 is configured to hover at the touched location, and the administrator can check in detail the areas of concern in the paddy field (e.g., F2) displayed on the display 40.

[0099] In this embodiment, the drone 5 is configured to be controllable by a transmitter 54 called a prop. The video captured by the imaging device 51 of the drone 5 is transmitted to the transmitter 54 by short-range wireless communication, and then from the transmitter 54 to the management server 20 via the Internet 30 using the transmission device 55.

[0100] On the other hand, each weir control device 12 drives the weir plate drive motor 8 to switch from the open state to the blocked state or from the blocked state to the open state, and transmits the opening / closing information of the weir plate 7 together with the identification information of the weir plate 7 to the management server 20 via the Internet 30. The management server 20 is configured to store the received opening / closing information of each weir plate in the storage unit 24.

[0101] Except for the above points, the paddy field water diversion management system 1 according to this embodiment is configured in the same manner as the above-described embodiments shown in FIGS. 1 to 7. When any paddy field, for example, paddy field F2, is pressed, the configuration in which the menu shown in FIG. 9 is displayed, and the above configuration when the "drone" switch is pressed may be applied to the above-described embodiments shown in FIGS. 1 to 7.

[0102] The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims. Needless to say, these are also included within the scope of the present invention.

[0103] For example, in each of the embodiments shown in FIGS. 1 to 10, the terminal device 4 is configured by a tablet-type terminal, but it may be configured by a head-mounted display shown in FIG. 11(a), a desktop personal computer, or the like.

[0104] When the terminal device is configured by a head-mounted display (HMD), the movement of the head (rotation or tilt of the head) is detected by a sensor, and in accordance with the movement of the administrator's head, the orientation of the imaging device is changed by driving the first and second angle adjustment motors. Thus, when the administrator moves their head, the scenery projected onto the HMD can be moved accordingly.

[0105] In this case, it is desirable to configure the operation lever 19 shown in FIG. 11(b) so that the unmanned aircraft can be operated. For example, by operating the operation lever 19 forward and backward, the unmanned aircraft 5 can be flown forward and backward to move the viewpoint forward and backward within the virtual space on the HMD. By operating the operation lever 19 left and right, the unmanned aircraft 5 can be turned to perform a turn within the virtual space on the HMD. By pressing the switch 29 provided on the operation lever 19 to move the unmanned aircraft 5 up and down, the viewpoint can be moved up and down within the virtual space on the HMD. In this way, the viewpoint can be intuitively operated, and the situation of the paddy field can be grasped more easily.

[0106] Furthermore, in each of the embodiments shown in FIGS. 1 to 10, the weirs provided at the water inlet portions of each of the fields F1 to F7 on the water channels 3 or 6 each include a control device, a weir plate, a motor, and a communication unit. However, a water level sensor for detecting the water level of the field surface water in each of the fields F1 to F5 may be separately provided, and the water level information of each of the fields F1 to F5 detected by the water level sensor may be transmitted to the terminal device or the management server 20, and the water intake may be automatically terminated when the water level reaches a predetermined level during water intake.

[0107] Also, in each of the embodiments shown in FIGS. 1 to 10, a weir plate is used as the blocking means for the water channels 3 and 6. However, it is not always necessary to use a weir plate as the blocking means. Therefore, for example, the water channel may be configured to be opened and closed by a valve such as a solenoid valve. In this case, the opening and closing state of the water channel by the valve will be controlled by the control device.

[0108] Furthermore, in each of the embodiments shown in FIGS. 1 to 10, in addition to the weir that needs to be in an open state for water diversion to the paddy field selected on the display 40, the weirs in the vicinity thereof are also configured to be displayed. However, it may be configured to display only the position of the weir (the weir that needs to be in an open state for water diversion to the selected paddy field) arranged on the waterway until water is diverted to the selected paddy field and the opening / closing state of the waterway by that weir.

[0109] Also, in each of the embodiments shown in FIGS. 1 to 10, the imaging device 51 mounted on the unmanned aircraft 5 is configured to be able to acquire an image of the scenery including the paddy field, the waterway, and the weir. However, it may be configured to acquire the image by a fixed-point camera or a network camera whose angle of view can be changed, and synthesize (overlay display) information such as the paddy field, the weir, and the waterway on the image on the terminal device 4 or the management server 20.

Explanation of Reference Numerals

[0110] 1 Paddy Field Water Diversion Management System 2 River 3 Waterway 4 Terminal Device 5 Unmanned Aircraft 6 Waterway 7 Weir Plate 8 Weir Plate Driving Motor 9 Communication Unit 10 Branch Point 11 Branch Point 12 Control Device 13 Water Diversion Start Switch 14 Bar Graph 15 Open Switch 16 Shutoff Switch 17 Processing Unit 18 Storage Unit 19 Operation Lever 20 Management Server 21 Control Unit 23 Processing Unit 24 Storage Unit 25 Input Unit 26 Display Unit 27 Communication Unit 28 Software 29 Switch 30 Internet 40 Display 41 Analog Stick 42 Analog Stick 43 Control Unit 44 Processing Unit 45 Memory Unit 46 Communication Unit 47 Display / Input Unit 48 Control Unit 50 GNSS Receiver 51 Imaging Device 52 First Angle Adjustment Motor 53 Second Angle Adjustment Motor 54 Transmitter 55 Transmission Device 60 Temperature Sensor F1 Paddy Field F2 Paddy Field F3 Paddy Field F4 Paddy Field F5 Paddy Field F6 Paddy Field F7 Paddy Field M1 Weir M2 Weir S1 Weir S2 Weir S3 Weir S4 Weir S5 Weir S6 Weir S7 Weir S8 Weir

Claims

1. A water cutoff management system for paddy fields, comprising cutoff means arranged at a plurality of locations on a waterway leading to the paddy fields for blocking the waterway, a control device for controlling the opening and closing of the waterway by the cutoff means, and a terminal device having display means and operating means for operating the cutoff means, wherein the terminal device is configured to be able to display a plurality of paddy fields based on position information of the plurality of paddy fields input in advance, and when an arbitrary paddy field is selected from the plurality of displayed paddy fields, the opening and closing state of the waterway by each of the cutoff means of the waterway leading to the selected paddy field and the integrated temperature from the cultivation of the crop are displayed.

2. The terminal device is connected to the Internet, and for the plurality of paddy fields, when the sowing date of each paddy field is obtained, the integrated temperature from the sowing date is calculated for each paddy field based on the weather information obtained from the Internet. The paddy field water diversion management system according to claim 1.

3. The cutoff means is provided with a temperature sensor for detecting the air temperature, the terminal device obtains and records the air temperature detected by the temperature sensor, and for the plurality of paddy fields, when the sowing date of each paddy field is obtained, the integrated temperature from the sowing date is calculated for each paddy field based on the recorded air temperature. The paddy field water diversion management system according to claim 1.

Images