Drainage work support system

Abstract

To provide a drainage work support system that can efficiently implement submergence countermeasures by preemptively implementing gradual submergence countermeasures in factory inner drain channels where water levels fluctuate in complex ways, such as overflowing due to a sudden rise in water levels caused by rain or factory wastewater.SOLUTION: A drainage work support system that predicts future water levels of drainage channels and performs predetermined control comprises notification control that reports on the water levels in the drainage channels to a preset notification target through the predetermined control, wherein the notification control includes a first notification control that notifies a first terminal as a notification object when the predicted water levels of the drainage channels exceed a first threshold and does not exceed a second threshold larger than the first threshold, and a second notification control that notifies the first terminal and a second terminal, which is not a notification object in the first notification control, as notification objects when the predicted water levels of the drainage channels exceed the second threshold.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a drainage work support system. [Background technology]

[0002] Large-scale business facilities such as steelworks have drainage channels (ditches) that discharge water into public waters (rivers, seas), and the wastewater generated during operations is purified and discharged through wastewater treatment facilities. When this happens, if the balance between the water flowing into the wastewater treatment facility and the amount of water discharged from the facility is disrupted due to factors such as an increase in the amount of wastewater discharged from the factory or facility or the effects of rainfall, water can overflow from the drainage channel upstream of the wastewater treatment facility, leading to flooding in various areas. When flooding occurs, it can cause equipment shutdowns, affect operations, block routes for transporting raw materials and products, and in the case of flooding in raw material stockyards, it can have a negative impact on blast furnaces and other facilities.

[0003] Patent Document 1 proposes the following method for preventing such flooding: First, a water level gauge is installed in the drainage channel to be monitored, and when the water level indicated by the water level gauge in that drainage channel exceeds a predetermined value, the water in that drainage channel is drained into a storage tank so that the water level in that drainage channel does not exceed an upper limit. Then, when the water level in the storage tank exceeds a predetermined value, the water in the storage tank is drained into another drainage channel with sufficient drainage capacity until the water level reaches a predetermined value so that the water level in that storage tank does not exceed the upper limit. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-79662 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the method proposed in Patent Document 1 only responds after the water level begins to rise, and if the inflow water in all waterways exceeds the upper limit of the amount of water that can be drained due to heavy rain or prolonged equipment trouble, additional measures will have to be taken after the fact. As a result, it is not possible to prevent the drainage channels from overflowing, which could lead to flooding of surrounding facilities.

[0006] The present invention has been made in consideration of the above, and aims to provide a drainage work support system that can efficiently implement flood prevention measures by taking measures in advance and in stages in factory drainage channels where the water level fluctuates in complex ways, such as when the water level rises suddenly and overflows due to rain or factory wastewater. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems and achieve the objectives, the drainage work support system of the present invention is a drainage work support system that predicts the future water level of a drainage channel based on data including hourly predicted precipitation amounts, hourly actual measured precipitation amounts, and the water level of a drainage channel to be monitored, and performs predetermined control, wherein the predetermined control includes notification control that issues a notification regarding the water level of the drainage channel to a predetermined notification target, and the notification control includes a first notification control that issues a notification to a first terminal as the notification target when the predicted water level of the drainage channel exceeds a first threshold but does not exceed a second threshold that is greater than the first threshold, and a second notification control that issues a notification to the first terminal and a second terminal that is not the notification target in the first notification control when the predicted water level of the drainage channel exceeds the second threshold.

[0008] In addition, the drainage work support system of the present invention is such that, in the above invention, the first alarm control is executed when the water level in the drainage channel within the predicted first hour exceeds the first threshold value and the water level in the drainage channel within the predicted second hour does not exceed the second threshold value, and the second alarm control is executed when the water level in the drainage channel within the predicted second hour exceeds the second threshold value, and the second hour is shorter than the first hour.

[0009] Furthermore, in the drainage work support system of the present invention, in the above invention, the predetermined control includes a water level adjustment control that is executed when the conditions for executing the second notification control are met, and the water level adjustment control is a control that increases the processing volume of a drainage treatment facility that is located downstream of the drainage channel and performs a purification process on the water flowing through the drainage channel. [Effects of the Invention]

[0010] The drainage work support system according to the present invention enables step-by-step flood prevention measures based on predicted water level values, allowing for more efficient flood prevention measures. Furthermore, the drainage work support system according to the present invention makes it possible to implement measures according to the predicted scale of flooding, thereby reducing costs associated with excessive measures and avoiding flood damage caused by insufficient measures. Furthermore, the drainage work support system according to the present invention makes it possible to evacuate personnel and close roads in advance in the event of flooding on an unmanageable scale.

[0011] Furthermore, the drainage work support system of the present invention makes it possible to operate existing technology more efficiently, and to avoid overflow for a longer period of time, thereby reducing the damage caused by flooding. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram showing an example of a drainage route within the premises of a business establishment to which a drainage work support system according to an embodiment of the present invention is applied. [Figure 2] FIG. 2 is a diagram showing a schematic configuration of the drainage work support system according to the first embodiment of the present invention. [Figure 3] FIG. 3 is a block diagram showing a specific configuration of the management server of the drainage work support system according to the embodiment of the present invention. [Figure 4] FIG. 4 is a flowchart showing the flow of the drainage work assistance method executed by the drainage work assistance system according to the first embodiment of the present invention. [Figure 5]FIG. 5 is a diagram showing a schematic configuration of a drainage work support system according to a second embodiment of the present invention. [Figure 6] FIG. 6 is a flowchart showing the flow of a drainage work assistance method executed by a drainage work assistance system according to the second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] A drainage work support system according to an embodiment of the present invention will be described with reference to the drawings. The drainage work support system according to the embodiment relates to a flood prevention method for reducing damage caused by flooding caused by rain or a sudden rise in factory wastewater overflowing a drainage channel in a factory, where all the water flowing through the drainage treatment facility is treated and discharged. The drainage work support system according to the embodiment predicts a rise in the water channel using a water level prediction AI and takes action to lower the water level in the drain in advance according to the rising water level.

[0014] 1 shows an example of a drainage channel within the premises of a business establishment to which the drainage work support system according to the embodiment is applied. In the example shown in the figure, water is drained into a specific drainage channel from multiple factories A, B, and facility C. In addition, downstream of the drainage channel, a wastewater treatment facility 50 is installed to purify the water in the drainage channel before discharging it into a public water body.

[0015] A precipitation meter 20 is installed on the business premises, measuring the amount of precipitation on the premises in real time. A water level meter 30 is installed in the drainage channel, measuring the water level of the drainage channel in real time. In the figure, the precipitation meter 20 and water level meter 30 are installed in one location, but if there are multiple drainage channels on the premises, a precipitation meter 20 and water level meter 30 are installed for each drainage channel. However, there may not be a large difference in the amount of precipitation on the premises. Therefore, fewer precipitation meters 20 than water level meters 30 may be installed, and only one may be installed on the premises.

[0016] [Embodiment 1] (Drainage work support system) 2 shows a schematic configuration of the drainage work support system according to the first embodiment. The drainage work support system 1 includes a management server 10, a precipitation meter 20, a water level meter 30, and a plurality of terminals (terminals A, B, and C) 40 capable of wireless communication with the management server 10. The drainage work support system 1 may further include various sensors that are installed on the premises and transmit various measurement values ​​to the management server 10. The drainage work support system 1 is also connected via a network to an external weather forecast server (for example, a server of the Japan Meteorological Agency) that calculates the predicted amount of precipitation for each hour in the future, and is configured to be able to acquire the predicted amount of precipitation for each hour.

[0017] The management server 10 is installed on or off the premises and is realized by a general-purpose computer such as a workstation or a personal computer. As shown in FIG. 3, the management server 10 includes a calculation unit 11, a storage unit 12, an input unit 13, and an output unit 14.

[0018] The calculation unit 11 includes a processor (arithmetic processing device) such as a CPU (Central Processing Unit) and a memory (main storage unit) such as a RAM (Random Access Memory) and a ROM (Read Only Memory). The processor executes a computer program to control each component, thereby realizing functions that meet a predetermined purpose. That is, the calculation unit 11 functions as a data acquisition unit 111, a water level prediction unit 112, a notification unit 113, and a water level adjustment control unit 114 through the execution of the computer program.

[0019] The drainage work support system 1 according to this embodiment is realized by the functions of the calculation unit 11, namely, the data acquisition unit 111, the water level prediction unit 112, and the notification unit 113. Therefore, only the data acquisition unit 111, the water level prediction unit 112, and the notification unit 113 will be described below, and the water level adjustment control unit 114 will be described in the second embodiment.

[0020] The data acquisition unit 111 acquires data necessary for processing in the water level prediction unit 112. That is, the data acquisition unit 111 acquires the amount of precipitation by hour in the area that includes the drainage channel to be monitored from the precipitation gauge 20. The data acquisition unit 111 also acquires the current water level of the drainage channel to be monitored from the water level gauge 30. The data acquisition unit 111 also acquires the predicted amount of precipitation by hour in the area that includes the drainage channel to be monitored from an external weather forecast server.

[0021] The water level prediction unit 112 predicts the water level of the monitored drainage channel at any time by inputting the data acquired by the data acquisition unit 111 into a water level prediction model created in advance. This water level prediction model is generated, for example, by machine learning past performance data. The water level prediction model is generated by machine learning using, for example, the amount of precipitation at a specific time in the past, the water level at a specific time in the past, and the predicted amount of precipitation for each hour after that specific time as explanatory variables (input variables), and the water level N hours after that specific time as the objective variable (output variable). The method for constructing the water level prediction model is not particularly limited, and various methods such as deep learning using a neural network, support vector machines, and multiple regression analysis can be used.

[0022] In this way, the water level prediction unit 112 can predict the water level of a drainage channel at any time by inputting the current values ​​of the precipitation gauge 20, the water level gauge 30, and the predicted amount of precipitation for each hour in the future into the water level prediction model. Note that if there are multiple drainage channels, the width and depth of the drainage channel, the treatment volume of the wastewater treatment facility 50, etc. will differ for each drainage channel. Therefore, if multiple drainage channels are to be monitored, a water level prediction model is generated in advance for each drainage channel.

[0023] The notification unit 113 performs notification control to notify a preset notification target of the water level in the drainage channel predicted by the water level prediction unit 112. This notification control includes first notification control and second notification control.

[0024] In the first notification control, when the water level in the drainage channel predicted by the water level prediction unit 112 exceeds a first threshold value but does not exceed a second threshold value that is greater than the first threshold value, a notification (first notification) is made to the first terminal as the notification target.

[0025] The above-mentioned "first terminal" refers to a terminal 40 among the multiple terminals 40 that is preset for the drainage channel to be monitored, for example, a terminal 40 owned by a worker in charge of the drainage channel to be monitored. Also, the above-mentioned "first notification" refers to making a notification regarding the water level (future water level) of the drainage channel to be monitored, for example, by email, etc., and specifically refers to making a notification suggesting that the water level of the drainage channel to be monitored is predicted to exceed the first threshold.

[0026] In this embodiment, the control of a specific drainage channel among multiple drainage channels in a factory will be described. That is, the "monitoring target" here refers to the specific drainage channel, the "worker in charge of the drainage channel to be monitored" refers to the person who carries the terminal 40 associated with the specific drainage channel, and the "first notification control" refers to control based on the water level of the specific drainage channel.

[0027] The first notification control may be executed when the water level in the drainage channel predicted by the water level prediction unit 112 within a first time exceeds a first threshold value and the water level in the drainage channel predicted within a second time does not exceed a second threshold value. In this case, the second time is set to be shorter than the first time.

[0028] In the second notification control, when the water level in the drainage channel predicted by the water level prediction unit 112 exceeds the second threshold, a notification (second notification) is made to the first terminal and the second terminal that is not the notification target in the first notification control.

[0029] The "second terminal" refers to a terminal 40 owned by a worker in charge of a drainage channel other than the monitored drainage channel, or a terminal 40 owned by a worker in a position to manage or supervise the worker. The "second notification" refers to providing a notification regarding the water level (future water level) of the monitored drainage channel, for example, by email, and more specifically, a notification indicating that the water level of the monitored drainage channel is predicted to exceed the second threshold. In this way, the second notification control notifies the person in charge of the monitored drainage channel and at least one other worker involved in the drainage work. The second notification control also preferably notifies all parties involved in the drainage work within the business premises.

[0030] The second notification control may be executed when the water level in the drainage channel within a second time period predicted by the water level predicting unit 112 exceeds a second threshold value.

[0031] The storage unit 12 is configured with recording media such as an EPROM (Erasable Programmable ROM), a hard disk drive (HDD), and removable media. Examples of removable media include disk recording media such as a USB (Universal Serial Bus) memory, a CD (Compact Disc), a DVD (Digital Versatile Disc), and a BD (Blu-ray (registered trademark) Disc). The storage unit 12 can store an operating system (OS), various programs, various tables, various databases, and the like. The storage unit 12 may also store, for example, various data acquired by the data acquisition unit 111, a water level prediction model used by the water level prediction unit 112, and water level prediction results from the water level prediction unit 112.

[0032] The input unit 13 is an input means for the calculation unit 11, and is realized by an input device such as a keyboard, a mouse pointer, a numeric keypad, etc. The input unit 13 inputs information necessary for various processes in the calculation unit 11.

[0033] The output unit 14 is realized by a display device such as an LCD display, a CRT display, etc. The output unit 14 displays, for example, the water level prediction result of the water level prediction unit 112 based on the display signal input from the calculation unit 11.

[0034] In this way, the drainage work support system of this embodiment predicts the future water level of the drainage channel based on data including the hourly predicted precipitation amount, the hourly actual precipitation amount, and the water level of the drainage channel to be monitored, and performs predetermined control (first alarm control, second alarm control).

[0035] (Drainage work support method) An example of a drainage work support method executed by the drainage work support system 1 according to this embodiment will be described with reference to Fig. 4. The drainage work support system 1 basically operates continuously, but may also start processing when, for example, one of the water level gauges 30 installed in multiple drainage channels exceeds a predetermined system operating water level.

[0036] First, the data acquisition unit 111 acquires various data (step S1). The various data include the amount of precipitation acquired from the precipitation gauge 20, the water level acquired from the water level gauge 30 installed in each drainage channel, and the amount of precipitation predicted for each hour in the future from an external weather forecast server.

[0037] Next, the water level prediction unit 112 inputs the data acquired in step S1 into the water level prediction model for each drainage channel, and predicts the water level for each hour within N hours in each drainage channel (step S2). In step S2, the number of hours into the future the water level is predicted (i.e., the value of N) is arbitrary, but for highly accurate prediction, it is desirable to predict within about 12 hours.

[0038] Next, the notification unit 113 determines whether the water level in each drainage channel within N1 hours (first time) exceeds a first threshold value set for each drainage channel (step S3). This "first threshold value" is set to, for example, a water level at which there is no immediate risk of overflowing, but at which it is desirable to start drainage work. Note that if there are multiple drainage channels, the width and depth of the drainage channel, the treatment volume of the wastewater treatment equipment 50, etc. will differ for each drainage channel. Therefore, a first threshold value is set for each drainage channel. Furthermore, N1 can be set to any time, for example, the time required for preparation for drainage work, etc., plus a margin of time.

[0039] In step S3, if the notification unit 113 determines that the water level in a specific drainage channel (a certain drainage channel) will exceed the first threshold within N1 hours, it proceeds to step S4, and if it determines that the water level will not exceed the first threshold, it returns to step S1.

[0040] In step S4, the notification unit 113 determines whether the water level within N2 hours (second time) in the drainage channel determined in step S3 to exceed the first threshold exceeds a second threshold determined for each drainage channel (step S4). This second threshold is set to, for example, a water level at which there is a high risk of overflow and it is desirable to start drainage work urgently. N2 can be set to any time. N2 may be the same time as N1, but is preferably shorter than N1. The reason for this will be explained later.

[0041] In step S4, if the notification unit 113 determines that the water level in the specific drainage channel within N2 hours will not exceed the second threshold, the notification unit 113 proceeds to step S5, and if it determines that the water level will exceed the second threshold, the notification unit 113 proceeds to step S6.

[0042] In step S5, the notification unit 113 issues a notification (first notification) to, for example, a terminal A (terminal 40 owned by worker X in charge of the specific drainage channel) that is preset for the specific drainage channel (step S5). In step S5, a notification regarding the water level of the specific drainage channel is issued, for example by email, or the like, specifically a notification suggesting that the water level of the specific drainage channel is predicted to exceed the first threshold. Upon receiving this notification, worker X can, for example, dispatch a drainage pump truck to the specific drainage channel and perform work such as connecting a drainage hose and installing a drainage pump in the drainage channel, thereby enabling drainage treatment from the specific drainage channel.

[0043] Meanwhile, in step S6, the notification unit 113 issues a notification (second notification) to terminals B and C that are not the target of the first notification, in addition to terminal A that is preset for the specific drainage channel (step S6). In step S6, a notification is issued by, for example, email or the like, regarding the water level of the specific drainage channel, specifically, a notification suggesting that the water level of the specific drainage channel is predicted to exceed the second threshold.

[0044] Here, communication terminal B is, for example, terminal 40 owned by worker Y who is in charge of a drainage channel different from that of worker X. Communication terminal C is, for example, a terminal owned by worker Z who is in a position to supervise and manage workers X and Y. In this way, in step S6, a notification is sent to all or some of the people involved in the drainage work on the premises of the business. Upon receiving this notification, workers X, Y, and Z perform an operation to increase the wastewater treatment capacity (wastewater treatment volume) of wastewater treatment facility 50, for example, in addition to dispatching a drainage pump truck if the dispatch has been completed, or in addition to arranging for a drainage pump truck if the dispatch has not been completed. In this way, by increasing the wastewater treatment volume of wastewater treatment facility 50, the water level in the drainage channel upstream of the wastewater treatment facility 50 can be lowered, making it possible to effectively prevent overflow.

[0045] After steps S5 and S6, the process returns to step S1 and repeats each step. To prevent the same notification from being repeated, the same notification may not be issued for a certain period of time. Alternatively, the same notification may not be issued until the water level of the specific drainage channel that is the target of the notification falls below the first threshold. The same notification here refers to a first notification being issued again after a first notification, and a second notification being issued again after a second notification, and naturally also includes a second notification being issued after a first notification. However, since there is little point in issuing a first notification after a second notification, issuing a first notification after a second notification may be treated as equivalent to an identical notification.

[0046] Here, we will explain why it is desirable to set N2 to a shorter time than N1. As described above, in drainage work, when it is predicted that the water level in the drainage channel will exceed the first threshold, a drainage pump truck is initially dispatched, and if the rise in the water level cannot be suppressed and it is predicted that the water level will exceed the first threshold, the treatment volume of the wastewater treatment facility 50 is increased. This is because if the treatment volume of the wastewater treatment facility 50 is increased, sludge and the like may adhere to the pumps and the like of the wastewater treatment facility 50, causing the pumps and the like to break down, so an increase in the treatment volume of the wastewater treatment facility 50 should be avoided as much as possible.

[0047] Therefore, the drainage work involves increasing the treatment volume of the wastewater treatment facility 50 after arranging for a drainage pump truck, but arranging for a drainage pump truck requires a certain amount of time for preparations for drainage work, such as moving the drainage pump truck, connecting the drainage hoses, installing the drainage pump, etc. Then, while making these preparations, the water level in the drainage channel may rise, and it may become necessary to increase the treatment volume of the wastewater treatment facility 50.

[0048] Therefore, in this embodiment, in order to minimize an increase in the treatment volume of the wastewater treatment facility 50 when the second notification is issued, while ensuring preparation time for the drainage work when the first notification is issued, the first notification is issued to the person in charge at an early stage, taking this preparation time into consideration, by setting "N1>N2." The difference between N1 and N2 is preferably one hour or more, and more preferably two hours or more.

[0049] [Embodiment 2] (Drainage work support system) 5 shows a schematic configuration of a drainage work support system according to embodiment 2. The drainage work support system 1A includes a management server 10, a precipitation meter 20, a water level meter 30, a plurality of terminals (terminals A, B, and C) 40 capable of wireless communication with the management server 10, and a drainage treatment facility 50.

[0050] To realize the second embodiment, the wastewater treatment facility 50 is configured to be capable of wireless communication with the management server 10 and each terminal 40. The wastewater treatment facility 50 may be capable of wireless communication with both the management server 10 and each terminal 40, or may be capable of wireless communication with either one of them. However, if only one of them is used, it is desirable that the final decision on the timing to increase the treatment volume of the wastewater treatment facility 50 be made by the workers X, Y, and Z, and it is desirable that the wastewater treatment facility 50 be configured to be capable of wireless communication with each terminal.

[0051] The drainage work support system 1A according to the second embodiment is realized by the functions of the data acquisition unit 111, the water level prediction unit 112, the notification unit 113, and the water level adjustment control unit 114, among the functions of the calculation unit 11 shown in Fig. 3. The data acquisition unit 111, the water level prediction unit 112, and the notification unit 113 are the same as those in the first embodiment, and therefore their explanation will be omitted.

[0052] The water level adjustment control unit 114 performs water level adjustment control when the condition for executing the second notification control is met. This water level adjustment control is a control to increase the treatment volume of the wastewater treatment facility 50, which is located downstream of the drainage channel and performs a purification process on the water flowing through the drainage channel.

[0053] (Drainage work support method) An example of a drainage work support method executed by the drainage work support system 1A according to this embodiment will be described with reference to Fig. 6. In the figure, the processing of steps S11 to S16 is the same as steps S1 to S6 (see Fig. 4) of embodiment 1, and therefore description thereof will be omitted.

[0054] In step S17, the water level adjustment control unit 114 performs water level adjustment control of the wastewater treatment facility 50 (step S17). That is, in the first embodiment, when the second notification was issued in step S6, the workers X, Y, and Z performed an operation to increase the treatment volume of the wastewater treatment facility 50 (see FIG. 4), but in this embodiment, a command to increase the treatment volume is sent to the wastewater treatment facility 50 from the management server 10 or the terminal 40 owned by each worker, and the wastewater treatment facility 50 that receives the command increases the treatment volume. This makes it possible to immediately increase the wastewater treatment volume even when the workers X, Y, and Z are not on-site, thereby quickly preventing overflow of the drainage channel.

[0055] The drainage work support system according to the embodiment described above enables step-by-step flood countermeasures based on predicted water levels, allowing for more efficient flood countermeasures. Furthermore, the drainage work support system according to the embodiment enables countermeasures to be implemented according to the scale of flooding, reducing costs associated with excessive countermeasures and avoiding flood damage caused by insufficient countermeasures. Furthermore, the drainage work support system according to the embodiment enables the evacuation of personnel and road closures to be implemented in advance in the event of flooding on an unmanageable scale.

[0056] Furthermore, the drainage work support system according to the embodiment makes it possible to operate existing technology more efficiently, thereby making it possible to avoid overflow for a longer period of time and reducing the damage caused by flooding.

[0057] The drainage work support system according to the present invention has been specifically described above using the mode and examples for carrying out the invention, but the gist of the present invention is not limited to these descriptions and must be broadly interpreted based on the claims. Furthermore, it goes without saying that various changes and modifications based on these descriptions are also included in the gist of the present invention. [Explanation of symbols]

[0058] 1,1A Drainage work support system 10 Management Server 11 Arithmetic section 111 Data Acquisition Unit 112 Water Level Forecasting Department 113 Information Department 114 Water level adjustment control unit 12 Storage section 13 Input section 14 Output section 20 Precipitation gauge 30 Water level gauge 40 terminals 50 Wastewater treatment facilities

Claims

1. A drainage work support system that predicts future water levels in a drainage channel and performs predetermined control based on data including hourly precipitation forecasts, hourly precipitation measurements, and water levels in the drainage channel to be monitored, The predetermined control includes notification control for notifying a predetermined notification target of the water level of the drainage channel, The notification control includes: a first notification control that notifies a first terminal as a notification target when the predicted water level of the drainage channel exceeds a first threshold value and does not exceed a second threshold value that is greater than the first threshold value; A second notification control that notifies the first terminal and a second terminal that is not the notification target in the first notification control when the predicted water level of the drainage channel exceeds the second threshold value; Including, The first notification control is executed when a predicted water level in the drainage channel within a first time period exceeds the first threshold value and a predicted water level in the drainage channel within a second time period does not exceed a second threshold value; The second notification control is executed when a predicted water level in the drainage channel within a second time period exceeds the second threshold value, The drainage work support system, wherein the second time period is shorter than the first time period.

2. The predetermined control includes a water level adjustment control that is executed when a condition for executing the second notification control is met, The drainage work support system according to claim 1, wherein the water level adjustment control is a control for increasing the treatment volume of a drainage treatment facility located downstream of the drainage channel and performing a purification process on the water flowing through the drainage channel.

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