Flood prevention facility operation support system, flood prevention facility operation support method, and flood prevention facility operation support program

Abstract

To provide a flood prevention facility operation support system that assists in executing appropriate operations for a flood prevention facility.SOLUTION: A flood prevention facility operation support system 1 includes: a measurement data acquisition unit 31 which acquires measurement data 23 on a river including measurement values of water levels at a plurality of locations in the river; a surrounding environment data acquisition unit 41 which acquires surrounding environment data including the operating condition of a river facility 400 installed in a basin of the river; a water level prediction unit 11 which predicts the future water levels at the plurality of locations in the river on the basis of the measurement data 23 and the surrounding environment data; a control proposal decision unit 12 which decides a control method for the river facility 400 on the basis of the water levels at the plurality of locations predicted by the water level prediction unit 11; and a proposal unit 42 which proposes the control method for the river facility 400 decided by the control proposal decision unit 12 to a user.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a flood control equipment operation support system, a flood control equipment operation support method, and a flood control equipment operation support program that support equipment operation work in flood control activities. [Background technology]

[0002] In recent years, as the risk of flooding increases due to climate change, there is a need for rapid and appropriate flood prevention activities against sudden rises in river water levels. To achieve rapid and appropriate flood prevention activities, it is important to predict as accurately as possible the future state of the areas subject to flood prevention activities.

[0003] For example, Patent Document 1 describes a technology that uses river information, such as water levels and rainfall measured in rivers, and facility operation information, such as the operating status of pumps at drainage pumping stations and the open / closed status of water gates, to predict future water levels through a modeling technique or machine learning, and provides guidance to operators who control drainage facilities.The technology described in Patent Document 1 creates operation rules tailored to various river conditions based on past river conditions, stores them in a database, and provides guidance on how to operate the drainage facilities based on the operation rule that is most similar to the current river condition. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-133275 A Summary of the Invention [Problem to be solved by the invention]

[0005] Flood prevention activities require appropriate operation of equipment based on current and future river conditions, etc.

[0006] The present disclosure has been made in consideration of the above, and aims to provide a flood control facility operation support system that supports the implementation of appropriate operations on flood control facilities. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems and achieve the objectives, the flood control equipment operation support system disclosed herein is characterized by comprising a measurement data acquisition unit that acquires river measurement data including measured values ​​of water levels at multiple points on the river, an ambient environment data acquisition unit that acquires ambient environment data including the operating status of river equipment installed in the river basin, a water level prediction unit that predicts future water levels at multiple points on the river based on the measurement data and the ambient environment data, a control proposal determination unit that determines a control method for the river equipment based on the water levels at the multiple points predicted by the water level prediction unit, and a proposal unit that proposes to a user the control method for the river equipment determined by the control proposal determination unit. Effect of the Invention

[0008] According to the present disclosure, it is possible to obtain an effect of providing a flood control facility operation support system capable of supporting the implementation of appropriate operations on flood control facilities. [Brief description of the drawings]

[0009] [Figure 1] A diagram showing an example of the configuration of a flood defense system including a flood defense equipment operation support system. [Diagram 2] A diagram showing an example of the functional block configuration of a flood control facility operation support system. [Diagram 3] Diagram showing the operation of the flood control facility operation support system [Figure 4] FIG. 1 is a diagram showing an example of a river where the water level prediction unit of the flood control facility operation support system predicts the water level. [Diagram 5] A flowchart showing an example of the operation of a control proposal determination unit of the flood control facility operation support system. [Figure 6] A flowchart showing an example of the operation of the control proposal determination unit of the flood control facility operation support system to update the optimal control pattern. [Figure 7]A flowchart showing an example of an operation of the monitoring control device to control river facilities. [Figure 8] A diagram showing an example of the hardware configuration of a server that realizes the water level prediction unit and the control proposal decision unit of the flood control equipment operation support system. [Figure 9] A diagram showing an example of the hardware configuration of a monitoring and control device that realizes a flood defense system by connecting it to a flood defense equipment operation support system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] A flood control equipment operation support system, a flood control equipment operation support method, and a flood control equipment operation support program according to embodiments of the present disclosure will be described in detail below with reference to the drawings.

[0011] Embodiment FIG. 1 is a diagram showing an example of the configuration of a flood defense system including a flood defense facility operation support system 1 according to the present embodiment. The flood defense system shown in FIG. 1 includes a flood defense facility operation support system 1 consisting of a server 10, a database 20, a gateway device 30, and a linkage device 40 provided on a cloud, a gateway device 110 and a measuring device 150 provided in each of a plurality of fields 100 such as observation stations, river facilities 400 such as water gates, drainage pumping stations, regulation ponds, and dams provided in river basins, other systems 300 that predict future rainfall, and a monitoring and control device 200 that monitors and controls the river facilities 400. The measuring devices 150 are water level gauges, flow meters, turbidity meters, and the like provided in rivers and the like. Each measuring device 150 repeatedly performs measurements at a predetermined period. The measurement results by each measuring device 150 include identification information of the measuring device 150 that performed the measurement, information on the time when the measurement was performed (hereinafter sometimes referred to as the measurement time), a measurement value, and the like. For example, if the measuring device 150 is a water level gauge, the measurement result by the measuring device 150 includes identification information of the water level gauge, the time when the water level was measured, the measured value of the water level, and the like.

[0012] The gateway device 30 of the flood control equipment operation support system 1 is connected to a telecommunications carrier network having wireless access lines, and acquires the measurement results by the measuring device 150 via the gateway device 110 in the field 100. In the following explanation, the measurement results by the measuring device 150 may be referred to as measurement data. The measurement data acquired by the gateway device 30 is registered in the database 20.

[0013] The linking device 40 of the flood control facility operation support system 1 performs processing for operating in cooperation with the other systems 300 and the monitoring control device 200. The linking device 40 is connected to an Internet line, and acquires, for example, river facility operation information indicating the operating status of the river facility 400, other system information which is information generated by the other system 300, and the like from the monitoring control device 200 and the other systems 300. Examples of the other system information include predicted values ​​of future rainfall, predicted values ​​of tide levels, predicted values ​​of water levels, and the like. In the following description, the river facility operation information acquired by the linking device 40 from the monitoring control device 200 and the other system information acquired from the other systems 300 may be collectively referred to as surrounding environment data. The information acquired by the linking device 40 is registered in the database 20.

[0014] The flood control facility operation support system 1 determines a control method for each of a plurality of river facilities 400, which are flood control facilities, based on the results of predicting the future state of the river, and proposes the determined control method to the user. In the following explanation, "control of the river facilities 400" and "operation of the river facilities 400" have the same meaning. The operation of the river facilities 400 is performed by a person (user), and the control of the river facilities 400 is performed by the monitoring control device 200. In other words, the user operates the river facilities 400 on the monitoring control device 200, and the monitoring control device 200, having received the operation from the user, controls the river facilities 400.

[0015] A functional block configuration of the flood control facility operation support system 1 is shown in Fig. 2. Fig. 2 is a diagram showing an example of the functional block configuration of the flood control facility operation support system 1.

[0016] As shown in FIG. 2, the flood control facility operation support system 1 includes a water level prediction unit 11 and a control proposal decision unit 12 in a server 10, a measurement data acquisition unit 31 that acquires measurement data from a measurement instrument 150, a surrounding environment data acquisition unit 41 that acquires surrounding environment data from a monitoring control device 200 and another system 300, and a proposal unit 42 that proposes a control method for a river facility 400 to a user of the monitoring control device 200. The water level prediction unit 11 predicts the future water level at a specified point on the river based on various data registered in a database 20. There are multiple points at which the water level prediction unit 11 predicts the water level. The control proposal decision unit 12 determines the control method for each of the multiple river facilities 400 proposed by the proposal unit 42 based on various data registered in the database 20. The data used by the control proposal decision unit 12 when determining the control method for each of the multiple river facilities 400 includes the water level data predicted by the water level prediction unit 11. The measurement data acquisition unit 31 is realized by the gateway device 30 shown in FIG. 1. The surrounding environment data acquisition unit 41 and the proposal unit 42 are realized by the linking device 40 shown in FIG.

[0017] The database 20 holds other system information 21 and river facility operation information 22 acquired by the surrounding environment data acquisition unit 41, measurement data 23 acquired by the measurement data acquisition unit 31, a trained model 24 used by the water level prediction unit 11 to predict the water level, a water level prediction value 25 indicating the prediction result of the water level by the water level prediction unit 11, a control pattern table 26 in which a plurality of control patterns indicating the control contents of each of the plurality of river facilities 400 are registered, and control proposal information 27 indicating the control method of the river facility 400 determined by the control proposal determination unit 12. Note that there are a plurality of pieces of the measurement data 23, the trained model 24, and the water level prediction value 25. Each control pattern registered in the control pattern table 26 is a candidate for a control method to be proposed to the user. The control proposal information 27 is one of the control patterns registered in the control pattern table 26.

[0018] The monitoring and control device 200 includes a control proposal display unit 51 that displays the control method for the river facility 400 proposed by the proposal unit 42 of the flood control equipment operation support system 1, a wireless communication unit 52 that performs wireless communication with terminal devices such as smartphones and tablet terminals, and an equipment control unit 53 that controls the river facility 400.

[0019] Fig. 3 is a diagram showing the operation of the flood control facility operation support system 1. As shown in Fig. 3, other system information 21 and river facility operation information 22 constituting surrounding environment data 28, measurement data 23, and a trained model 24 are input to the water level prediction unit 11.

[0020] The trained model 24 is a model for inferring the amount of change in water level over a certain period of time based on the other system information 21, the river facility operation information 22, and the measurement data 23. The trained model 24 is generated, for example, by an external learning device. This trained model 24 is generated by learning the relationship between the other system information 21 and the river facility operation information 22, and the amount of water level change over a certain period of time calculated from the measurement data 23. The trained model 24 learns the amount of water level change over a certain period of time corresponding to the other system information 21 and the river facility operation information 22 by so-called supervised learning according to, for example, a neural network model. The amount of water level change over a certain period of time becomes the teacher data. The trained model 24 may be a model configured to infer the water level after a certain period of time has passed. That is, the trained model 24 may be a model generated by learning the relationship between the other system information 21, the river facility operation information 22, and the measurement data 23 (water level at the specified time) at a specified time, and the measurement data 23 at a point in time when a certain time has elapsed from the specified time (water level at the point in time when a certain time has elapsed from the specified time). In this case, the measurement data 23 at the point in time when a certain time has elapsed from the specified time becomes the teacher data.

[0021] The learning algorithm used to generate the trained model 24 may be deep learning that learns to extract features themselves. The trained model 24 may also be generated by performing machine learning according to other known methods, such as genetic programming, functional logic programming, and support vector machines.

[0022] The water level prediction unit 11 inputs the other system information 21 and the river facility operation information 22 to the trained model 24 as inference data, and calculates a predicted value of the water level after a certain time has elapsed based on a predicted value of the water level change amount for a certain time output from the trained model 24. Specifically, the water level prediction unit 11 adds the water level change amount (predicted value) output from the trained model 24 when the other system information 21 and the river facility operation information 22 are input to the water level indicated by the measurement data 23 to obtain a predicted value of the water level after a certain time has elapsed. In addition, the water level prediction unit 11 repeatedly executes a process of calculating a predicted value of the water level after a certain time has elapsed. For example, the water level prediction unit 11 calculates a predicted value of the water level 30 minutes after the current time, and then calculates the water level 30 minutes after, that is, the water level predicted value 60 minutes after the current time. In this way, the water level prediction unit 11 repeatedly calculates the water level predicted value every 30 minutes.

[0023] There are a plurality of points where the water level prediction unit 11 predicts the water level, and a trained model 24 exists for each point. When predicting the water level, the water level prediction unit 11 uses the trained model 24 corresponding to the point where the water level is predicted, among the plurality of trained models 24. For example, when predicting the water level of the river shown in FIG. 4, the water level observation stations A1 to A9 are the target points of the water level prediction. In this case, a trained model 24 exists for each of the nine target points. The water level prediction unit 11 predicts the water level of each target point of the water level measurement using the corresponding trained model 24. Note that FIG. 4 shows only the water level observation stations where the water level gauge is installed, and does not show the rain gauge station where the rain gauge is installed. The trained model 24 corresponding to each target point of the water level measurement is generated using learning data with a different configuration for each target point. Since the water level of a river has a relationship in which a change in the upstream side also causes a change in the downstream side, the water level measured at the water level observation station located upstream is adopted as learning data for each target point. In addition, at each target point, the rainfall measured at the rainfall observation stations within a specified range centered on the target point is adopted as training data. For example, when generating a trained model 24 used to predict the water level after a certain time has elapsed at the water level observation station A1 shown in FIG. 4, the water level measured at each of the water level observation stations A2 to A9 and the rainfall measured at the rainfall observation stations within a specified range centered on the water level observation station A1 are used as training data. When generating a trained model 24 used to predict the water level after a certain time has elapsed at the water level observation station A6, the water level measured at each of the water level observation stations A7 to A9 and the rainfall measured at the rainfall observation stations within a specified range centered on the water level observation station A6 are used as training data. Other information that has a strong correlation with water level changes, such as turbidity and tide levels, may be added to the training data.

[0024] The water level prediction unit 11 outputs the water level prediction result for each target point of water level prediction as a water level prediction value 25. The water level prediction value 25 output by the water level prediction unit 11 is registered in the database 20.

[0025] The control proposal determination unit 12 generates the control proposal information 27 based on the water level prediction value 25 and the control pattern table 26 registered in the database 20. As described above, a plurality of control patterns are registered in the control pattern table 26. Each control pattern that is a candidate for the control method of the river facility 400 includes a bit indicating the state of each river facility 400 controlled by the facility control unit 53. For example, if the river facility 400 is a water gate, a bit indicating whether it is open (ON) or closed (OFF) is included. If the river facility 400 is a pump of a drainage facility, a bit indicating whether it is in operation (ON) or stopped (OFF) is included. As a simple example, if there are two river facilities 400, which are a water gate and a drainage facility, the control pattern table 26 is composed of a control pattern including two bits indicating that both the water gate and the drainage facility are ON, a control pattern including two bits indicating that the water gate is ON and the drainage facility is OFF, a control pattern including two bits indicating that the water gate is OFF and the drainage facility is ON, and a control pattern including two bits indicating that both the water gate and the drainage facility are OFF. The control pattern table 26 is created in advance by a user of the flood prevention facility operation support system 1, such as a person in charge of flood prevention work, and is registered in the database 20.

[0026] The control proposal determination unit 12 identifies a control pattern that is effective in suppressing a rise in water level for each control pattern registered in the control pattern table 26, based on a water level prediction value 25 obtained by having the water level prediction unit 11 predict the future water level when the control method indicated by the control pattern is executed on each river facility 400, i.e., the future water level when each river facility 400 is controlled to reach the state indicated by the control pattern. The control proposal determination unit 12 registers the identified control pattern in the database 20 as control proposal information 27.

[0027] Next, there will be described the operation of the control proposal decision unit 12 of the flood control equipment operation support system 1. Fig. 5 is a flowchart showing an example of the operation of the control proposal decision unit 12 of the flood control equipment operation support system 1.

[0028] The control proposal determiner 12 first sets the current control pattern as the best control pattern (step S11). The current control pattern is a control pattern that indicates the operation status of each of the river facilities 400 controlled by the monitoring control device 200. The current control pattern corresponds to the river facility operation information 22.

[0029] Next, the control proposal determiner 12 selects a control pattern (step S12). The control proposal determiner 12 selects one of the control patterns from the control pattern table 26 that is different from the current control pattern.

[0030] The control proposal determination unit 12 then requests the water level prediction unit 11 to predict the water level when operation is performed according to the selected control pattern, that is, to predict the water level after a certain time has elapsed when the monitoring and control device 200 controls the river facility 400 to achieve the operating conditions indicated by the selected control pattern (step S13). The water level prediction unit 11, upon receiving this request, predicts the water level after a certain time has elapsed for each of the target points for water level prediction (water level observation stations A1 to A9 in the example shown in FIG. 4) using the control pattern selected by the control proposal determination unit 12 in step S12 instead of the river facility operation information 22.

[0031] The control proposal determiner 12 acquires the water level prediction value from the water level predictor 11 (step S14), and executes an update process of the optimal control pattern (step S15).

[0032] The details of the operation of the control proposal determiner 12 in updating the best control pattern in step S15 will be described with reference to Fig. 6. Fig. 6 is a flowchart showing an example of the operation of the control proposal determiner 12 in the flood control equipment operation support system 1 in updating the best control pattern.

[0033] In the update process of the best control pattern described in step S15 of FIG. 5, as shown in FIG. 6, the control proposal determination unit 12 first acquires a water level prediction value when the operation is performed according to the best control pattern (step S51). The best control pattern at this time is the current control pattern and corresponds to the river facility operation information 22. The water level prediction value when the river facility 400 is operated according to the best control pattern corresponds to the water level prediction value 25 held by the database 20. Therefore, the control proposal determination unit 12 acquires the water level prediction value 25 held by the database 20 in step S51. Note that if a long time has passed since the water level prediction unit 11 last calculated the water level prediction value 25 held by the database 20, the control proposal determination unit 12 requests the water level prediction unit 11 to predict the water level when the river facility 400 is operated according to the best control pattern, and acquires the latest water level prediction value 25 after the update from the database 20. For example, if more than 10 minutes have passed since the water level prediction unit 11 last calculated the water level prediction value 25, the control proposal determination unit 12 requests the water level prediction unit 11 to predict the water level if the river facility 400 is operated according to the best control pattern.

[0034] The control proposal determination unit 12 calculates the score P1 of the best control pattern (step S52). If it is predicted that no flood will occur in the future at any of the water level prediction points when the river facility 400 is controlled to achieve the best control pattern, the control proposal determination unit 12 sets the score of the best control pattern to 2 points (P1 = 2). Also, if it is predicted that a flood will occur in the future at any of the water level prediction points when the river facility 400 is controlled to achieve the best control pattern, the control proposal determination unit 12 sets the score of the best control pattern to 1 point (P1 = 1).

[0035] Furthermore, the control proposal determiner 12 calculates a score P2 of the control pattern selected in the above step S12 (step S53). The control proposal determiner 12 calculates the score P2 in the same manner as in the above step S52.

[0036] Next, the control proposal decision unit 12 compares the score P1 calculated in step S52 with the score P2 calculated in step S53 (step S54). If P1 ≠ P2 (step S54: No), it sets the control pattern with the higher score as the optimal control pattern (step S58). That is, if P1 > P2, the control proposal decision unit 12 ends the operation without changing the optimal control pattern. If P1 < P2, it updates the optimal control pattern to the control pattern selected in step S12 above and ends the operation.

[0037] Also, when P1 = P2 (step S54: Yes), the control proposal decision unit 12 checks whether P1 and P2 are 1 point (step S55). When P1 and P2 are 2 points (step S55: No), the control proposal decision unit 12 sets the optimal control pattern based on the comparison results between the water level prediction values of the two control patterns and the levee height (step S59).

[0038] In step S59, the control proposal determination unit 12 calculates the difference between the embankment height of each point for each of the water level prediction values ​​of the multiple points acquired in step S51. The calculated difference (hereinafter, this difference is referred to as the first difference) corresponds to the margin of error until flooding occurs at each point. In this embodiment, there are multiple water level prediction values ​​at different times as water level prediction values ​​at each point, and the control proposal determination unit 12 calculates the difference between the embankment height and the water level prediction value at the latest time. For example, if there are a total of six water level prediction values ​​every 10 minutes up to 60 minutes later for one point, the control proposal determination unit 12 calculates the difference between the water level prediction value 60 minutes later and the embankment height for each point. Similarly, the control proposal determination unit 12 calculates the difference between the embankment height of each point for each of the water level prediction values ​​of the multiple points acquired in the above step S14 (hereinafter, this difference is referred to as the second difference). Then, the control proposal determiner 12 compares the minimum value of the first differences with the minimum value of the second differences, and sets the control pattern corresponding to the difference with the larger minimum value, i.e., the control pattern with the larger margin of error before flooding occurs, as the best control pattern. If "minimum value of first differences ≧ minimum value of second differences" holds, the control proposal determiner 12 ends the operation without changing the best control pattern, and if "minimum value of first differences < minimum value of second differences" holds, the control proposal determiner 12 updates the best control pattern to the control pattern selected in step S12 above and ends the operation.

[0039] Furthermore, if P1 and P2 are one point (step S55: Yes), the control proposal determination unit 12 checks whether the time when flooding occurs is the same when the operation is performed according to each of the two control patterns (step S56). The control proposal determination unit 12 checks the water level prediction values ​​of the multiple points acquired in step S51, identifies the time when flooding occurs when the river facility 400 is operated according to the best control pattern (the current best control pattern before the update) (hereinafter, this time is referred to as the first flood occurrence time), and also checks the water level prediction values ​​of the multiple points acquired in the above step S13, identifies the time when flooding occurs when the river facility 400 is operated according to the control pattern selected in the above step S12 (hereinafter, this time is referred to as the second flood occurrence time), and compares the first flood occurrence time with the second flood occurrence time. If the first flood occurrence time and the second flood occurrence time are different (step S56: No), the control proposal determination unit 12 sets the control pattern with the later flood occurrence time as the best control pattern (step S60). If the first flood occurrence time is later than the second flood occurrence time, the control proposal determination unit 12 terminates operation without changing the best control pattern, and if the second flood occurrence time is later than the first flood occurrence time, the control proposal determination unit 12 updates the best control pattern to the control pattern selected in step S12 above and terminates operation.

[0040] Furthermore, if the first flood occurrence time and the second flood occurrence time are the same (step S56: Yes), the control proposal determination unit 12 checks whether the number of flood occurrence points is the same when the operation is performed according to each of the two control patterns (step S57). The number of flood occurrence points here is the number of flood occurrence points at the flood occurrence time. Hereinafter, the number of points where flood occurs when the river facility 400 is operated according to the best control pattern (the current best control pattern before the update) is defined as the first flood occurrence point number, and the number of points where flood occurs when the river facility 400 is operated according to the control pattern selected in the above step S12 is defined as the second flood occurrence point number. If the first flood occurrence point number and the second flood occurrence point number are the same (step S57: Yes), the control proposal determination unit 12 ends the operation without updating the best control pattern. If the numbers of flood occurrence points are different (step S57: No), the control proposal determination unit 12 sets the control pattern with the fewer flood occurrence points as the best control pattern (step S61). If "the number of first flood occurrence points is less than or equal to the second number of flood occurrence points" is true, the control proposal determination unit 12 terminates operation without changing the best control pattern, and if "the number of first flood occurrence points is greater than the second number of flood occurrence points" is true, the control proposal determination unit 12 updates the best control pattern to the control pattern selected in step S12 above and terminates operation.

[0041] Returning to the explanation of Fig. 5, after executing the update process of the best control pattern in step S15, the control proposal determiner 12 checks whether the update process has been completed for all control patterns (step S16). That is, the control proposal determiner 12 checks whether the processes of steps S12 to S15 have been executed for all remaining control patterns, excluding the control pattern set as the best control pattern in step S11, among the control patterns registered in the control pattern table 26.

[0042] If there is a control pattern for which the processes of steps S12 to S15 have not been performed among the remaining control patterns excluding the control pattern set as the best control pattern in step S11 (step S16: No), the control proposal determiner 12 returns to step S12 and continues the operation. If the processes of steps S12 to S15 have been performed for all of the remaining control patterns excluding the control pattern set as the best control pattern in step S11 (step S16: Yes), the control proposal determiner 12 generates and outputs control proposal information (step S17). In this step S17, the control proposal determiner 12 outputs the control pattern set as the best control pattern to the database 20 as control proposal information 27.

[0043] The control proposal information 27 generated by the control proposal decision unit 12 is passed from the proposal unit 42 to the monitoring control device 200. The monitoring control device 200, which has received the control proposal information 27, displays a proposal for a control method for the river facility 400 based on the control proposal information 27 to a user, such as a person in charge of flood prevention work, and controls the river facility 400 in accordance with the contents of the operation received from the user.

[0044] A detailed description will now be given of the operation of the monitoring control device 200 controlling the river facility 400. Fig. 7 is a flowchart showing an example of the operation of the monitoring control device 200 controlling the river facility 400.

[0045] The monitoring control device 200 acquires the control proposal information 27 from the flood control facility operation support system 1 (step S21), and the control proposal display unit 51 displays the control proposal (step S22). The control proposal display unit 51, for example, displays a list of the states of each river facility 400 indicated by the control proposal information 27 on a screen, and displays a dialogue inquiring whether or not control according to the proposed contents may be executed, that is, whether or not each river facility 400 may be operated so as to become in the displayed state. The list of states of each river facility 400 indicated by the control proposal information 27 is a list of the states of each river facility 400 after the operation proposed by the flood control facility operation support system 1 is executed. At this time, the control proposal display unit 51 may display the current state of each river facility 400 and the state of each river facility 400 after the operation is executed side by side. The display of the river facility 400 whose state changes due to the operation may be emphasized, or the display color of the river facility 400 whose state does not change may be different from the display color of the river facility 400 whose state changes. The display of river facilities 400 whose state does not change even when an operation is performed may be omitted, and only river facilities 400 whose state changes may be displayed. In this way, the user can easily recognize which of the multiple river facilities 400 will have its state changed when the operation proposed by the flood control facility operation support system 1 is performed, and it is easier to check whether the proposed content is appropriate, improving convenience. In addition, when displaying the control proposal in step S22, the control proposal display unit 51 may also display the future water level forecast value of each point when the operation according to the proposed content is performed. When displaying the control proposal, if a flood is predicted to occur even if the operation according to the proposed content is performed, the control proposal display unit 51 may further display the point where the flood is predicted to occur and the time when the flood is predicted to occur.

[0046] After the control proposal display unit 51 displays the control proposal, the monitoring control device 200 checks whether or not an execution instruction operation for the proposed control has been received (step S23). If an execution instruction operation has been received (step S23: Yes), the facility control unit 53 executes control for each river facility 400 according to the control proposal information 27 (step S24). If an execution instruction operation has not been received (step S23: No), the monitoring control device 200 requests the flood control facility operation support system 1 to re-present the control proposal information 27 (step S25) and returns to step S21. That is, in step S25, the monitoring control device 200 requests the flood control facility operation support system 1 to re-send the control proposal information 27 whose control content is different from the control proposal information 27 acquired in the previous execution of step S21. When the monitoring control device 200 newly acquires the control proposal information 27 whose control content is different from the control proposal information 27 acquired in the past in step S21, it executes step S22 and the subsequent processing again using the newly acquired control proposal information 27. The monitoring control device 200 repeats the processing of steps S21 to S23 and S25 until control of each river facility 400 is executed in step S24. When control of each river facility 400 is executed in step S24, the monitoring control device 200 may notify the flood control equipment operation support system 1 that it has controlled each river facility 400 in accordance with the proposed content. This enables the flood control equipment operation support system 1 to grasp the status of each river facility 400 and update the river facility operation information 22 to the latest status.

[0047] When the flood control facility operation support system 1 receives a request to resend the control proposal information 27 from the monitoring control device 200, the control pattern corresponding to the previously transmitted control proposal information 27 is deleted from the control pattern table 26, and the control proposal decision unit 12 updates the control pattern table 26. Then, the control proposal decision unit 12 uses the updated control pattern table 26 to execute the operation according to the flowcharts of FIG. 5 and FIG. 6 to create new control proposal information 27. After the control proposal decision unit 12 creates the new control proposal information 27, the proposal unit 42 transmits the new control proposal information 27 to the monitoring control device 200. Note that the control proposal decision unit 12 of the flood control facility operation support system 1 may store the water level prediction value acquired by executing steps S13 and S14 of FIG. 5 before receiving a request to resend the control proposal information 27, and when a request to resend the control proposal information 27 is received, the stored water level prediction value may be used to create new control proposal information 27. This eliminates the need for the water level prediction unit 11 to re-predict the water level, and reduces the processing load and processing delay time.

[0048] In this embodiment, an example has been described in which the control proposal display unit 51 of the monitoring control device 200 proposes a control method for the river facility 400 to the user, but the proposal to the user may be made using a terminal device with a wireless communication function, such as a smartphone or tablet terminal used by the user. In this case, the terminal device displays a screen similar to the screen displayed by the control proposal display unit 51 in step S22 above, and accepts a selection operation of whether or not to execute the proposed control. Information required for the terminal device to perform display, etc. is transmitted to the terminal device by the wireless communication unit 52 of the monitoring control device 200.

[0049] Next, a description will be given of the hardware configuration of server 10 which realizes water level prediction unit 11 and control proposal decision unit 12 of flood control equipment operation support system 1. Fig. 8 is a diagram showing an example of the hardware configuration of server 10 which realizes water level prediction unit 11 and control proposal decision unit 12 of flood control equipment operation support system 1. Server 10 is composed of, for example, processor 201, memory 202, and communication circuit 203 shown in Fig. 8.

[0050] The processor 201 is a CPU (Central Processing Unit, also called a central processing unit, processing unit, arithmetic unit, microprocessor, microcomputer, or DSP (Digital Signal Processor)), a system LSI (Large Scale Integration), etc. The memory 202 is a non-volatile or volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), or a flash memory, a magnetic disk, etc. The communication circuit 203 is an electronic circuit for connecting to a communication network by wire or wirelessly and transmitting and receiving data, etc.

[0051] When the server 10 is composed of a processor 201, a memory 202, and a communication circuit 203, the above-mentioned water level prediction unit 11 and control proposal determination unit 12 are realized by the processor 201 executing a program for operating as each of these units. The program for operating as the water level prediction unit 11 and the control proposal determination unit 12 is stored in advance in the memory 202. The processor 201 operates as the water level prediction unit 11 and the control proposal determination unit 12 by reading out the above-mentioned program from the memory 202 and executing it.

[0052] In addition, the programs stored in memory 202 for operating as the water level prediction unit 11 and the control proposal determination unit 12 may be provided to users, etc. in a form written on a storage medium such as a CD (Compact Disc)-ROM or a DVD (Digital Versatile Disc)-ROM, or may be provided to users, etc. via a network.

[0053] The hardware configuration of the monitoring and controlling device 200 will be described. Fig. 9 is a diagram showing an example of the hardware configuration of the monitoring and controlling device 200 which is connected to the flood prevention equipment operation support system 1 to realize a flood prevention system. The monitoring and controlling device 200 is composed of, for example, a processor 301, a memory 302, a communication circuit 303, a display device 304, and an input device 305 shown in Fig. 9. The processor 301, the memory 302, and the communication circuit 303 are respectively the same hardware as the processor 201, the memory 202, and the communication circuit 203 shown in Fig. 8. The display device 304 is a liquid crystal monitor, a display, or the like. The input device 305 is a mouse, a keyboard, or the like.

[0054] The control proposal display unit 51 and the equipment control unit 53 of the monitoring and controlling device 200 are realized by the processor 301 executing programs for operating as these units. The programs for operating as the control proposal display unit 51 and the equipment control unit 53 are stored in advance in the memory 302. The processor 301 reads out and executes the programs from the memory 302 to operate as the control proposal display unit 51 and the equipment control unit 53. In addition, the wireless communication unit 52 of the monitoring and controlling device 200 is realized by the communication circuit 303.

[0055] In addition, the programs for operating as the control proposal display unit 51 and the equipment control unit 53, like the programs for operating as the water level prediction unit 11 and the control proposal determination unit 12 of the flood control equipment operation support system 1, may be provided to users, etc. in a form written on a storage medium, or may be provided to users, etc. via a network.

[0056] As described above, the flood control facility operation support system 1 according to this embodiment predicts the future water level of the river based on the measured values ​​of the river's water level, rainfall, turbidity, etc., the operating status of the river facility 400, and predicted values ​​of future rainfall, tide levels, etc., and determines a control method for the river facility 400 based on the predicted water level and proposes it to the user. In the control method determination process, the flood control facility operation support system 1 predicts the future water level when the river facility 400 is controlled according to each of a plurality of control patterns prepared in advance, and determines the proposed control method based on the comparison result between the predicted water levels. In addition, if the proposed control method is not adopted, another control method is determined and proposed again. The flood control facility operation support system 1 according to this embodiment can support the realization of appropriate operation for various river facilities 400.

[0057] The configurations shown in the above embodiments are merely examples, and may be combined with other known technologies. Parts of the configurations may be omitted or modified without departing from the spirit of the invention.

[0058] Various aspects of the present disclosure are summarized below as appendices.

[0059] (Appendix 1) a measurement data acquisition unit that acquires measurement data of the river including measurement values ​​of water levels at a plurality of points of the river; a surrounding environment data acquisition unit that acquires surrounding environment data including an operating status of river facilities provided in the river basin; a water level prediction unit that predicts future water levels at the plurality of points of the river based on the measurement data and the surrounding environment data; a control proposal determination unit that determines a control method for the river facility based on the water levels at the multiple points predicted by the water level prediction unit; and a proposal unit that proposes to a user the control method of the river facility determined by the control proposal determination unit; A flood prevention facility operation support system comprising: (Appendix 2) The water level prediction unit calculates a future water level prediction value when the river facility is controlled according to each of a plurality of control patterns that are candidates for a control method of the river facility, for each of the control patterns; The control proposal determination unit determines a control method for the river facility based on a comparison result between the water level prediction values ​​for each of the control patterns calculated by the water level prediction unit. 2. A flood control facility operation support system as described in claim 1. (Appendix 3) The control proposal determination unit determines whether or not there is a control pattern that will not cause flooding when used in the control of the river facility based on the water level prediction value for each control pattern calculated by the water level prediction unit, and if there are multiple control patterns that will not cause flooding, determines the control pattern that has the largest difference between the water level prediction value when used in the control of the river facility and the embankment height at the water level prediction point as the control method for the river facility. 3. A flood control facility operation support system as described in appendix 2. (Appendix 4) The control proposal determination unit determines whether or not there is a control pattern that will not cause flooding when used in controlling the river facility based on the water level prediction value for each control pattern calculated by the water level prediction unit, and if there is no control pattern that will not cause flooding, determines the control pattern that will cause the latest flood occurrence time as the control method for the river facility. 4. A flood control facility operation support system according to claim 2 or 3. (Appendix 5) the control proposal determination unit, when there is no control pattern that does not cause flooding and there are multiple control patterns that result in the latest flood occurrence time, determines the control pattern that has the fewest number of flood occurrence points as the control method for the river facility; 5. A flood control facility operation support system according to claim 4. (Appendix 6) When the proposal unit receives a request for re-presentation of the proposed method after proposing the control method of the river facility to the user, The control proposal determination unit redetermines the control method of the river facility based on remaining control patterns excluding a control pattern corresponding to a control method already proposed to a user, The proposal unit re-proposes to a user the control method of the river facility re-determined by the control proposal determination unit. 6. A flood control facility operation support system according to any one of claims 2 to 5. (Appendix 7) When proposing the control method of the river facility determined by the control proposal determination unit, the proposal unit also presents a future water level prediction value when control is performed using the proposed control method. 7. A flood control facility operation support system according to any one of claims 1 to 6. (Appendix 8) When proposing the control method for the river facility determined by the control proposal determination unit, if a flood is predicted to occur after control is performed using the proposed control method, the proposal unit presents the location where the flood is predicted to occur and the time when the flood is predicted to occur. 8. A flood control facility operation support system according to any one of claims 1 to 7. (Appendix 9) The proposal unit proposes the control method of the river facility determined by the control proposal determination unit to a user of a monitoring control device that controls the river facility. 9. A flood control facility operation support system according to any one of claims 1 to 8. (Appendix 10) The monitoring and control device has a function of wirelessly communicating with a terminal device used by the user, The proposal unit proposes a control method for the river facility via the terminal device used by the user. 10. The flood control facility operation support system according to claim 9, (Appendix 11) A flood control facility operation support method executed by a flood control facility operation support system, a measurement data acquisition step of acquiring measurement data of the river including measurement values ​​of water levels at a plurality of points of the river; A surrounding environment data acquisition step of acquiring surrounding environment data including an operating status of a river facility provided in the river basin; a water level prediction step of predicting future water levels at the plurality of points of the river based on the measurement data and the surrounding environment data; a control proposal determination step of determining a control method for the river facility based on the water levels at the plurality of points predicted in the water level prediction step; a proposal step of proposing to a user the control method of the river facility determined in the control proposal determination step; A flood prevention facility operation support method comprising: (Appendix 12) a measurement data acquisition step of acquiring measurement data of the river including measurement values ​​of water levels at a plurality of points of the river; A surrounding environment data acquisition step of acquiring surrounding environment data including an operating status of a river facility provided in the river basin; a water level prediction step of predicting future water levels at the plurality of points of the river based on the measurement data and the surrounding environment data; a control proposal determination step of determining a control method for the river facility based on the water levels at the plurality of points predicted in the water level prediction step; a proposal step of proposing to a user the control method of the river facility determined in the control proposal determination step; A flood control facility operation support program that causes a computer to execute the above steps. [Explanation of symbols]

[0060] 1 flood control equipment operation support system, 10 server, 11 water level prediction unit, 12 control proposal decision unit, 20 database, 21 other system information, 22 river equipment operation information, 23 measurement data, 24 trained model, 25 water level prediction value, 26 control pattern table, 27 control proposal information, 28 surrounding environment data, 30, 110 gateway device, 31 measurement data acquisition unit, 40 linked device, 41 surrounding environment data acquisition unit, 42 proposal unit, 51 control proposal display unit, 52 wireless communication unit, 53 equipment control unit, 100 field, 150 measuring equipment, 200 monitoring control device, 300 other systems, 400 river equipment.

Claims

1. a measurement data acquisition unit that acquires measurement data of the river including measurement values ​​of water levels at a plurality of points of the river; a surrounding environment data acquisition unit that acquires surrounding environment data including an operating status of river facilities provided in the river basin; a water level prediction unit that predicts future water levels at the plurality of points of the river based on the measurement data and the surrounding environment data; a control proposal determination unit that determines a control method for the river facility based on the water levels at the multiple points predicted by the water level prediction unit; and a proposal unit that proposes to a user the control method of the river facility determined by the control proposal determination unit; A flood prevention facility operation support system comprising:

2. The water level prediction unit calculates a future water level prediction value when the river facility is controlled according to each of a plurality of control patterns that are candidates for a control method of the river facility, for each of the control patterns; The control proposal determination unit determines a control method for the river facility based on a comparison result between the water level prediction values ​​for each of the control patterns calculated by the water level prediction unit.

2. A flood control facility operation support system according to claim 1.

3. The control proposal determination unit determines whether or not there is a control pattern that will not cause flooding when used in the control of the river facility based on the water level prediction value for each control pattern calculated by the water level prediction unit, and if there are multiple control patterns that will not cause flooding, determines the control pattern that has the largest difference between the water level prediction value when used in the control of the river facility and the embankment height at the water level prediction point as the control method for the river facility.

3. A flood control facility operation support system according to claim 2.

4. The control proposal determination unit determines whether or not there is a control pattern that will not cause flooding when used in controlling the river facility based on the water level prediction value for each control pattern calculated by the water level prediction unit, and if there is no control pattern that will not cause flooding, determines the control pattern that will cause the latest flood occurrence time as the control method for the river facility.

3. A flood control facility operation support system according to claim 2.

5. the control proposal determination unit, when there is no control pattern that does not cause flooding and there are multiple control patterns that result in the latest flood occurrence time, determines the control pattern that has the fewest number of flood occurrence points as the control method for the river facility; 5. A flood control facility operation support system according to claim 4.

6. When the proposal unit receives a request for re-presentation of the proposed method after proposing the control method of the river facility to the user, The control proposal determination unit redetermines the control method of the river facility based on remaining control patterns excluding a control pattern corresponding to a control method already proposed to a user, The proposal unit re-proposes to a user the control method of the river facility re-determined by the control proposal determination unit.

6. A flood control facility operation support system according to claim 2,

7. When proposing the control method of the river facility determined by the control proposal determination unit, the proposal unit also presents a future water level prediction value when control is performed using the proposed control method.

6. A flood control facility operation support system according to claim 1,

8. When proposing the control method for the river facility determined by the control proposal determination unit, if a flood is predicted to occur after control is performed using the proposed control method, the proposal unit presents the location where the flood is predicted to occur and the time when the flood is predicted to occur.

6. A flood control facility operation support system according to claim 1,

9. The proposal unit proposes the control method of the river facility determined by the control proposal determination unit to a user of a monitoring control device that controls the river facility.

2. A flood control facility operation support system according to claim 1.

10. The monitoring and control device has a function of wirelessly communicating with a terminal device used by the user, The proposal unit proposes a control method for the river facility via the terminal device used by the user.

10. A flood control facility operation support system according to claim 9.

11. A flood control facility operation support method executed by a flood control facility operation support system, a measurement data acquisition step of acquiring measurement data of the river including measurement values ​​of water levels at a plurality of points of the river; A surrounding environment data acquisition step of acquiring surrounding environment data including an operating status of a river facility provided in the river basin; a water level prediction step of predicting future water levels at the plurality of points of the river based on the measurement data and the surrounding environment data; a control proposal determination step of determining a control method for the river facility based on the water levels at the plurality of points predicted in the water level prediction step; a proposal step of proposing to a user the control method of the river facility determined in the control proposal determination step; A flood prevention facility operation support method comprising:

12. a measurement data acquisition step of acquiring measurement data of the river including measurement values ​​of water levels at a plurality of points of the river; A surrounding environment data acquisition step of acquiring surrounding environment data including an operating status of a river facility provided in the river basin; a water level prediction step of predicting future water levels at the plurality of points of the river based on the measurement data and the surrounding environment data; a control proposal determination step of determining a control method for the river facility based on the water levels at the plurality of points predicted in the water level prediction step; a proposal step of proposing to a user the control method of the river facility determined in the control proposal determination step; A flood control facility operation support program that causes a computer to execute the above steps.

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