JP6556389B1 - Drainage channel monitoring system, drainage channel monitoring method, and drainage channel monitoring program - Google Patents

Abstract

Disclosed is a drainage channel monitoring system, a drainage channel monitoring method, and a drainage channel monitoring program capable of controlling the drainage amount of a plurality of drainage pumps installed in a drainage channel to prevent the drainage channel from being broken or flooded. A drainage channel monitoring system (1) acquires positional information of a plurality of drainage pumps (100) for pumping drainage from the drainage channel and at least one of the plurality of drainage pumps provided in the drainage channel. Based on the location information acquisition unit 11, the weather information acquisition unit 12 that acquires weather information based on the location information, the generation unit 13 that generates emission abnormality information produced from the weather information and the location information, and the emission abnormality information, And a control unit 14 that controls the amount of drainage of any one or more of the plurality of drainage pumps. [Selection] Figure 1

Description

  The present invention relates to a drainage channel monitoring system, a drainage channel monitoring method, and a drainage channel monitoring program, and in particular, a drainage channel monitoring system and a drainage channel monitoring method for controlling drainage by monitoring the water level of the drainage channel. And the drainage channel monitoring program.

  For example, a drainage channel is set up to drain rainwater, etc., in villages at a height of 0 meters above sea level. This drainage channel is equipped with a drainage pump. When the water level in the drainage channel rises due to the influence of rainfall, the water in the drainage channel is pumped up by the drainage pump and discharged to the nearby drainage river. This suppressed the rise in the water level of the drainage channel.

  Annual precipitation varies from season to season. Therefore, the operation of drainage pumps suitable for the season is carried out under a medium- to long-term plan. With this plan, the water level in the drainage channel has been controlled to be within a certain range.

  However, local heavy rains and heavy rains may occur due to cumulonimbus clouds over the drainage basin. In the case of such heavy rain, when a sensor or the like detects a rise in the water level in the drainage channel, the drainage pump is activated and feedback control is performed. However, the activation of the drainage pump after detecting the rise in the water level of the drainage channel is too late, and it may not always be sufficient for prevention of the drainage channel breakage and flooding.

  In the technique described in Patent Document 1, when storing rainwater in a region to be managed in a storage tank, in order to lower the water level of the storage tank in advance based on the information on the predicted rainfall obtained via the Internet The drainage pump was activated to control the amount of drainage.

JP2013-227849A

  However, in the technique described in Patent Document 1, it was not possible to manage a wide area of the drainage basin for the purpose of adjusting the water level of the drainage.

  Therefore, in view of the problems of the prior art, the object of the present invention is to control the amount of drainage of a plurality of drainage pumps installed in the drainage channel so as to predict and prevent the possibility of the drainage channel breaking or flooding. It is an object of the present invention to provide a drainage channel monitoring system, a drainage channel monitoring method, and a drainage channel monitoring program.

A drainage channel monitoring system according to the present invention includes a plurality of drainage pumps for pumping drainage from a drainage channel, and a position information acquisition unit that acquires positional information of at least two drainage pumps of the plurality of drainage pumps. A weather information acquisition unit that acquires weather information based on position information, a generation unit that generates emission abnormality information based on weather information and position information,
A control unit that controls the amount of drainage of any one or more of the plurality of drainage pumps based on the abnormal discharge information.

  A drainage channel monitoring method according to the present invention is a drainage channel monitoring method of a drainage pump provided with a plurality of drainage pumps provided in the drainage channel and pumping drainage from the drainage channel, wherein at least one drainage pump of the plurality of drainage pumps A location information acquisition step for acquiring location information, a weather information acquisition step for acquiring weather information based on the location information, a generation step for generating emission abnormality information based on the weather information and the location information, and emission abnormality information And a control step for controlling the amount of drainage of any one or more of the plurality of drainage pumps.

  The drainage channel monitoring program according to the present invention is a drainage channel monitoring program for a drainage pump provided with a plurality of drainage pumps that are provided in the drainage channel and pumps drainage from the drainage channel, and the computer has at least one or more of the plurality of drainage pumps. A position information acquisition function for acquiring the position information of the drainage pump, a weather information acquisition function for acquiring weather information based on the position information, a generation function for generating abnormal discharge information based on the weather information and the position information, and a discharge Based on the abnormality information, a control function for controlling the amount of drainage of any one or more of the plurality of drainage pumps is realized.

  A drainage channel monitoring system, a drainage channel monitoring method, or a drainage channel monitoring program according to the present invention obtains positional information of a drainage pump for each of a plurality of drainage pumps installed in the drainage channel, and includes the positional information. Since such weather information is acquired and the amount of each drainage pump is controlled with respect to a plurality of drainage pumps, it is possible to foresee and prevent the possibility of the drainage channel being broken or flooded.

It is a whole lineblock diagram of a drainage channel monitoring system which monitors a drainage channel. It is a 1st schematic diagram which shows an example of the positional relationship of the drainage pump installed between the river and the drainage channel. It is a 2nd schematic diagram which shows an example of the positional relationship of the drainage pump installed between the river and the drainage channel. It is a flowchart which concerns on control of the drainage channel monitoring system which monitors a drainage channel. It is a distribution map of the degree (contribution degree) which contributes to the water level rise of the basin used as a control object. It is a prediction distribution map of the total precipitation of the basin used as control object for the predetermined time.

BEST MODE FOR CARRYING OUT THE INVENTION

  Hereinafter, an embodiment of a drainage channel monitoring system 1 according to the present invention will be described with reference to FIGS. 1 to 4. The present invention is not limited to the embodiments of the present invention described in detail below, and can be implemented with various modifications.

With reference to FIG. 1, the whole structure of the drainage channel monitoring system 1 of this embodiment is demonstrated.
The drainage channel monitoring system 1 according to the present embodiment includes a plurality of drainage pumps 100 for pumping drainage from the drainage channel 220, an information processing unit 10, a global positioning system device (GPS device) 15, weather, and the like. The information processing server 50, the wireless router 60, the control unit 110, the electromagnetic contactor 120, the power supply 130, the operation switch 150, and the water level sensor 160 are provided.

  The information processing unit 10 includes a reception unit 19, a position information acquisition unit 11, a weather information acquisition unit 12, a generation unit 13, a control unit 14, an image data acquisition unit 16, a notification unit 17, a log data storage unit 18, a transmission unit 21, A display unit 22 and a memory 23 are provided, and individual units for realizing these functions are realized by a central processing unit (not shown) and are internally connected to each other via a single bus 24. ing. The drainage channel monitoring program according to the present invention is stored in the memory 23 and executed by the central processing unit.

  The position information acquisition unit 11 acquires position information of at least two drain pumps 100 of the plurality of drain pumps 100. The weather information acquisition unit 12 acquires weather information via the Internet 20 based on the position information. The generation unit 13 generates discharge abnormality information based on the weather information and the position information. The control unit 14 controls the amount of drainage of any one or more drainage pumps 100 of the plurality of drainage pumps 100 based on the discharge abnormality information.

  The drainage channel monitoring system 1 according to the present embodiment includes an information processing unit 10 and a wireless router 60 in the center, and a wireless router 60 and a weather information processing server 50 are connected to the information processing unit 10 and the wireless router 60. A plurality of control units 110 are connected to the information processing unit 10 by wire or wireless. Each control unit 110 is connected to a drain pump 100 (its motor 40).

  The information processing unit 10 predicts the weather based on weather data obtained from the weather data distribution company 30 via the Internet 20 and controls the motor 40 of the drainage pump 100.

  The weather data distributed from the weather data distribution company 30 every predetermined time is information based on the weather observed at many points within a predetermined range. The meteorological data observed and acquired for each point is distributed to the user via the Internet 20 every predetermined time (for example, every 5 minutes). The weather information processing server 50 accumulates the latest weather data distributed every predetermined time. Meteorological data refers to temperature, precipitation, sunshine duration, wind direction, snow depth, etc. at each observation point.

  The information processing unit 10 includes a position information acquisition unit 11, a weather information acquisition unit 12, a generation unit 13, a control unit 14, an image data acquisition unit 16, a notification unit 17, a log data storage unit 18, a reception unit 19, a transmission unit 21, And a display unit 22. Further, the information processing unit 10 is connected to an external global positioning system device (hereinafter referred to as a GPS device) 15, a wireless router 60, and a control unit 110.

  The information processing unit 10 is a known control device. As an example, the information processing unit 10 may be realized by a portable notebook computer, tablet computer, smartphone, or the like. By connecting the information processing unit 10 to an existing drain pump control device, the information processing unit 10 acquires position information and weather information of the drain pump 100 to be controlled.

  The wireless router 60 wirelessly connects the reception unit 19 of the information processing unit 10 and the weather information processing server 50, and the weather information processing server 50 is connected to the Internet 20. The transmission unit 21 of the information processing unit 10 is connected to the control unit 110. The control unit 110 is connected to the information processing unit 10, the electromagnetic contactor 120, the operation switch 150, and the water level sensor 160.

  When the administrator of the drainage channel 220 manually controls the drainage pump 100, the operation switch 150 is operated. When the operation switch 150 is turned “ON”, the electromagnetic contactor 120 is turned “ON” via the control unit 110. As a result, the electric power from the power source 130 is supplied to the motor 40 of the drainage pump 100 and the motor 40 is started.

  On the other hand, when the operation switch 150 is “OFF”, the electromagnetic contactor 120 is turned off via the control unit 110. As a result, the supply of electric power from the power source 130 to the motor 40 of the drainage pump 100 is stopped, and the motor 40 stops.

  The water level sensor 160 operates when the water level of the drainage channel 220 reaches a preset water level. In this embodiment, when the water level of the drainage channel 220 reaches the critical water level, the water level sensor 160 is activated and an “ON” signal is transmitted to the electromagnetic contactor 120 via the control unit 110. The electromagnetic contactor 120 that has received the “ON” signal of the water level sensor 160 is also “ON”, and the power of the power source 130 is supplied to the motor 40 of the drainage pump 100, so that the drainage pump 100 is activated.

  The display unit 22 is a display device such as a liquid crystal monitor that indicates an operation status of the control unit 14 of the information processing unit 10 to an administrator of the drainage channel 220. The administrator can operate the information processing unit 10 while monitoring the display unit 22 and monitor the operation status of the drainage pump 100.

  The position information acquisition unit 11 acquires position information of each of the plurality of drainage pumps 100 from the GPS device 15. The GPS device 15 is a system in which signals from several satellites in the sky are received by a GPS receiver and the receiver knows his current position. A GPS device 15 associated with each of the plurality of drainage pumps 100 is provided.

  The position information is the individual latitude and longitude of each drainage pump 100. The weather information acquisition unit 12 acquires weather information for each drainage pump 100 based on the position information of each of the plurality of drainage pumps 100 acquired by the position information acquisition unit 11. This weather information is weather data distributed every predetermined time from the weather data distribution company 30 stored in the weather information processing server 50 described above.

  The generation unit 13 generates emission abnormality information based on the position information acquired by the position information acquisition unit 11 and the weather information acquired by the weather information acquisition unit 12. The abnormal discharge information is information that predicts that the water level of the drainage channel 220 will reach the dangerous water level after a predetermined time (for example, after 30 minutes). When it is predicted that the water level of the drainage channel 220 will reach the critical water level after a predetermined time, it is determined that the drainage pump 100 to be controlled is driven as having a discharge abnormality.

  When it is determined that the drainage pump 100 to be controlled is driven as having a discharge abnormality, a signal having a discharge abnormality is transmitted from the generation unit 13 to the control unit 14. The control unit 14 outputs an “ON” signal from the transmission unit 21 to the control unit 110 connected to the drainage pump 100 to be controlled. The control unit 110 “ON” the electromagnetic contactor 120 in response to the “ON” signal received from the transmission unit 21, thereby starting the motor 40 of the drainage pump 100 as described above.

  While the control unit 14 continues to predict that the water level of the drainage channel 220 will reach the dangerous water level after a predetermined time, the control unit 14 is directed to the control unit 110 connected to the drainage pump 100 to be controlled by the transmission unit 21 as having a discharge abnormality. Thus, the output of the “ON” signal is continued, and the motor 40 of the drainage pump 100 continues to drive.

  On the other hand, if the control unit 14 predicts that the water level of the drainage channel 220 is not a dangerous water level after a predetermined time, the control unit 110 continues to the control unit 110 that is continued from the transmission unit 21 to the drainage pump 100 to be controlled with no discharge abnormality. The output of the signal is stopped, and the driving of the motor 40 of the drainage pump 100 is stopped.

  It is also possible to construct a finite element model that takes into account the topography of the drainage channel 100 and the watershed 210 and analyze the movement of rainwater drainage. In this finite element model, it is possible to predict the flow path of rainwater in the basin 200 of the drainage channel 100 and predict the water level of the drainage channel 100 to be controlled.

  Furthermore, it is also possible to construct a boundary element model considering the topography of the drainage channel 100 and the watershed 210 using the boundary element method instead of the finite element method. In the finite element model, the region to be calculated is divided by a triangular mesh. When the terrain data is the target of calculation, the interior of the drainage channel 100 and the watershed 210 is also divided by the triangular mesh. The inside must be the target of computation, and a huge amount of calculation is required.

  On the other hand, when the terrain data is used as a calculation target using the boundary element method, only the boundary of the drainage channel 100 or the watershed 210 needs to be calculated, and the calculation scale is small compared to the finite element model. It's okay.

  Here, the discharge abnormality information generated by the generation unit 13 will be described in detail using the first schematic diagram of FIG. 2 and the second schematic diagram of FIG. The first schematic diagram of FIG. 2 shows the basin of one river, and the second schematic diagram of FIG. 3 shows the basin of two rivers. A boundary where a plurality of basins 200 are in contact is referred to as a watershed 210. Rainwater that falls in the vicinity of the watershed 210 enters one of the basins 200 along the topographical conditions. This terrain situation is determined from the terrain data of the 3D map. A basin is an area where precipitation collects in the river.

  Specifically, the generating unit 13 specifies, for each drainage pump 100 to be controlled, a watershed 210 that forms a drainage basin of the drainage channel 220 located on the upstream side of the drainage pump 100 by the topographic data of the 3D map. . The 3D map is built in the information processing unit 10 in advance or can be obtained via the Internet 20.

  All rainwater falling inside the watershed 210 identified for each drainage pump 100 flows into the drainage channel 220 located upstream of the drainage pump 100 at the end of the basin 200. Accordingly, the control unit 14 controls the drainage pump 100 by predicting the water level of the drainage channel 220 based on the amount of precipitation falling inside the drainage pump 100 to be controlled.

  Specifically, the generation unit 13 controls the sum of rainwater inside the watershed 210 of the drainage channel 220 to be controlled and within an altitude range higher than the altitude of the position information of the drainage pump 100. It is predicted that it will flow into the upstream side of the drainage pump 100.

  For precipitation predicted to fall in the vicinity of the watershed 210, the generation unit 13 determines which percentage of the precipitation enters which basin 200 and what percentage of other precipitation enters which basin 200. Is determined based on the terrain data of the 3D map. And the production | generation part 13 estimates the water level of the drainage channel 220 ahead of each basin 200. FIG.

  In the drainage channel monitoring system 1, the generation unit 13 identifies the flow path using the 3D map of the basin 200 of the drainage channel 220, and corrects the discharge abnormality information in combination with weather information and position information.

  A numerical terrain model, which is terrain data of a 3D map, refers to a model that digitally expresses terrain features such as elevation, slope, slope, orientation, and water system in three-dimensional coordinates. The numerical terrain model is used to extract features or terrain information such as elevation, contour lines, gradient and slope directions, water systems, and watershed areas. Based on the terrain information extracted based on the numerical terrain model of the area to be controlled by the drainage monitoring system 1, the basin 200 and the watershed 210 of the drainage channel 220 are specified.

  The numerical terrain model of the area to be controlled by the drainage channel monitoring system 1 is viewed in plan, and a square mesh is applied to this area. The rainwater inside the square mesh collects at the lowest elevation of the four corners of the square mesh. By connecting the corners with the lowest elevation of all the square meshes, it is possible to infer the path of rainwater flowing in the area to be controlled.

  The control unit 14 generates a control signal based on the discharge abnormality information generated by the generation unit 13 and outputs the control signal to the control unit 110 of each drainage pump 100. For example, when the control signal is “ON”, the control unit 110 connects the primary side contact of the electromagnetic contactor (relay switch) 120 to the secondary side circuit, and power is supplied to the secondary side. Thereby, the motor 40 of the drainage pump 100 is started.

  When the control signal is changed from “ON” to “OFF”, the primary side contactor of the magnetic contactor 120 is separated from the secondary side circuit to cut off the power supply to the secondary side.

  In addition to the electromagnetic contactor 120, an operation switch 150 and a water level sensor 160 are connected to the control unit 110. The operation switch 150 is also used when the drainage pump 100 is manually operated by the administrator of the drainage channel 220. The drainage pump 100 corresponding to the input (switch operation) from the administrator is operated.

  The water level sensor 160 detects the water level of the drainage channel 220. A water level sensor 160 is installed for each drainage pump 100. A known product is used for the water level sensor. For example, the water level sensor 160 using the float detects an abnormality in the water level from the position of the float floating on the water surface.

  Instead of using the water level sensor 160 as a method for detecting the water level of the drainage channel 220, the water level can be detected based on photographic image data of the water surface of the drainage channel 220. The information processing unit 10 includes an image data acquisition unit 16. The drainage channel 220 is provided with a camera (not shown).

  The drainage channel monitoring system 1 includes an image data acquisition unit 16 that acquires photographic image data near the water surface of the drainage channel 220, and the control unit 14 acquires photographic image data of the water surface of the drainage channel 220 acquired by the image data acquisition unit 16. The amount of drainage of the drainage pump 100 is controlled based on the water level of the drainage channel 220 measured based on the above.

  The image data acquisition unit 16 acquires photographic image data obtained by imaging the water surface of the drainage channel 220 from the camera. The information processing unit 10 stores in advance several pattern images of the normal water level of the drainage channel 220 (the water level not during the water increase). The information processing unit 10 estimates the water level of the drainage channel 220 from pattern matching (comparison between images) of the acquired photographic image data and a pattern image stored in advance.

  In this case, the photographic image data of the drainage channel 220 including the water surface of the drainage in the drainage channel 200 is acquired, and the water level of the drainage channel 220 can be measured based on the photographic image data by, for example, image recognition by deep learning. It becomes possible. In order to detect the water level of each drainage channel 220, it is not necessary to install the water level sensor 160 for each drainage pump 100.

  The drainage channel monitoring system 1 includes a notification unit 17 that notifies the administrator of the position information acquired by the position information acquisition unit 11, and the notification unit 17 controls the drainage pump 100 based on the discharge abnormality information, and then notifies the administrator. The positional information of the drainage pump 100 that is the object of control is notified.

  The notification unit 17 controls the drainage pump 100 based on the discharge abnormality information generated by the generation unit 13, and then notifies the e-mail address of the administrator of the drainage channel 220 of the positional information of the drainage pump 100 that is the object of control. Thereby, it is possible to notify the administrator which drain pump 100 is controlled by the drain channel monitoring system 1.

  Furthermore, the drainage channel monitoring system 1 includes a log data storage unit 18 that stores log data of the operation of the control unit 14, and the generation unit 13 corrects the discharge abnormality information based on the log data.

  The information processing unit 10 includes a log data storage unit 18. The log data storage unit 18 can store log data of the operation of the control unit 14. Here, the log data refers to, for example, all records of the operation of the control unit 14 corresponding to past conditions such as weather information, the control amount of the drainage pump 100 corresponding thereto, the drainage effect, and the like. By accumulating the log data of the operation of the control unit 14, the recorded past situation is compared with the current situation. If the situation is similar, the current situation is determined based on the past operation pattern of the control unit 14. The control pattern can be determined.

  When the information processing unit 10 is connected to the control device of the existing drainage pump 100, first, the past situation closest to the current situation is extracted from the past situations accumulated in the log data accumulation unit 18. . If the result of the drainage control of the corresponding pump based on the extracted past situation exhibits a sufficient drainage effect, the control of the drainage pump 100 is started using this control pattern.

  For example, if the result of the drainage control of the corresponding pump based on the past situation recorded as the log data of a certain drainage pump 100 cannot exhibit sufficient drainage efficiency, The control pattern of the drainage control of the pump performed in the past with respect to the drainage pump 100 can be excluded from the options.

  Further, if the result of the drainage control of the corresponding pump based on the past situation recorded as log data of a certain drainage pump 100 can exhibit sufficient drainage efficiency, if the current situation is similar, the drainage It is possible to adopt (remain log data) as one option of control patterns performed in the past for the pump 100.

  The information processing unit 10 may include a learning unit that learns past situations accumulated in the log data accumulation unit 18 and drainage control and drainage effects at that time. Learning means machine learning such as machine learning and deep learning.

  If the learning unit stores the past situation stored in the log data storage unit 18 and the information on the control amount at that time, the drainage effect at that time is sufficient, or is there a sufficient control amount, Based on information such as how much the control amount is insufficient when there is not enough, deep learning of the drainage control is performed, and a control model is generated that uses the control amount of the drainage pump 100 as a solution.

  That is, the control model is generated based on the topographic information of the watershed 210 of the drainage channel 220 to be controlled and the drainage abnormality information generated by the generator 13 from past weather data in the watershed 210. . From this generation model, the generation unit 13 can obtain the drainage abnormality information as a solution based on the current meteorological data and / or topographic information of the watershed of the drainage channel to be controlled.

  Specifically, the entire range of the watershed 210 of the drainage channel 220 to be controlled is divided by a square mesh. And among the meteorological data above the specific square mesh in the watershed 210, the precipitation corresponding to the specific mesh is recorded every predetermined time (for example, 5 minutes) for the precipitation. The drainage abnormality information generated by the generating unit 13 and the drainage control result are accumulated as log data.

(Processing flow)
FIG. 4 is a diagram showing a processing flow executed when the drainage channel monitoring system 1 (information processing unit 10) controls the drainage pump 100.

  Step S10: The position information of each of the plurality of drainage pumps 100 is acquired from the GPS device 15. It should be noted that step S10 can be omitted by recording each position information of the drainage pump 100 in the information processing unit 10 in advance. The position information acquisition unit 11 executes the acquisition of the position information in step S10.

  Step S20: Acquire weather information for each drainage pump 100 based on the position information of each of the plurality of drainage pumps 100 acquired in Step S10. The weather information acquisition unit 12 executes the acquisition of the weather information in step S20.

  Step S30: Discharge abnormality information produced from the position information acquired in step S10 and the weather information acquired in step S20 is generated. The generation unit 13 executes generation of abnormal discharge information in step S30.

  Step S40: A control signal is generated based on the abnormal discharge information generated in Step S30, and the control signal is output to the control unit 110 of each drain pump 100. The control unit 14 outputs the control signal in step S40.

  Next, a method for calculating the control amount of the drainage pump 110 of the drainage channel 220 to be controlled will be described. A 2 km square mesh is applied to the basin 200 of the drainage channel 220 to set the contribution (%) in each 2 km square mesh of the basin 200.

  The degree of contribution (%) is a degree (%) that the sum of precipitations for a predetermined time (for example, 30 minutes) inside each 2 km square mesh contributes to an increase in the water level in the drainage pump 100 of the drainage channel 220 to be controlled. Say.

  FIG. 5 is a distribution diagram of the contribution (%) in the basin 200 of the drainage channel 220 to be controlled. Here, the degree of contribution (%) will be described in detail. For example, it is assumed that precipitation for 30 minutes in a 2 km square mesh to be observed is 50 mm. When the contribution is set to 30%, the precipitation of 15 mm contributes to the rise of the water level in the drainage pump 100. Precipitation (mm) is the value obtained by dividing the volume, including rain, hail other than rain, hail, snow, etc., into water and dividing by the unit area.

  Based on the sum total of the basin 200 having a value obtained by multiplying the precipitation amount in each 2 km square mesh by the contribution degree, the control amount of the drainage pump 100 to be controlled is obtained. Here, the control amount refers to the operation duration time of the drainage pump 100.

  Next, a method for calculating the contribution (%) will be described. The contribution (%) is calculated based on the three-dimensional terrain data of the 3D map of the watershed 200 of the drainage channel 220 to be controlled. As a method for calculating the contribution (%), a finite element method, a boundary element method, or a difference method can be used. Here, a method for calculating the contribution (%) using the finite element method will be described.

  A method for calculating the contribution (%) using the finite element method will be described below. The degree of contribution (%) is calculated for each 2 km square mesh. Nodes are set every 1 m on the outer circumference of the 2 km square mesh to be calculated.

  Next, the distance from the center of the 2 km square mesh to be calculated to the drainage pump 100 to be controlled is measured, and this distance is set as R. A circle P having a radius R is drawn from the center of the mesh. A mesh of meshes of triangular elements of the finite element method is applied over the entire area inside the circle P of radius R.

  Next, the range which the drainage channel 100 in the outer periphery of the circle P crosses is specified. Specifically, the x-coordinate range of the range that the drainage channel 100 crosses among the x-axis, y-axis, and z-axis of the three-dimensional terrain data of the circle P is obtained from the three-dimensional map data.

  Next, the sum of the z coordinates of the vertices of the triangle element is calculated for all routes passing through the sides of the triangle element of the finite element method from the node and crossing the circumference of the circle P. Then, a route that minimizes the sum is specified for each node. This route is regarded as a flow path to the circumference of the circle P of rainwater flowing out from the node.

  Next, if any of the routes identified in the previous step has reached the drainage channel 100 to be controlled, count the number of routes, and divide by the total number of nodes in the 2 km square mesh to be calculated The number of contributions (%).

  Next, the distribution of the predicted total precipitation in the basin 200 for a predetermined time is obtained from the weather data in the region 200 of the drainage channel 100 to be controlled. FIG. 6 is a distribution diagram for each 2 km square mesh of the predicted total precipitation amount for a predetermined time (for example, 30 minutes) in the basin 200 to be controlled.

  Calculate the product of the number of contributions (%) for each 2 km square mesh in the basin 200 and the predicted total precipitation, and control the drainage pump 110 to be controlled based on the sum of this product (contribution × predicted total precipitation) Calculate the amount. It is assumed that the sum of the products is the sum of rainwater flowing in for a predetermined time (for example, 30 minutes), and the time divided by the discharge amount per unit time (minute) of the drain pump 110 is set as the control amount of the drain pump 11. .

According to the embodiment of the present invention described above, the following becomes possible.
According to the embodiment of the present invention, even if the water level of the drainage channel 220 does not rise at the present time, the drainage pump 100 can be controlled by predicting the subsequent water level. Therefore, it becomes possible to operate the drainage pump 100 in preparation for sudden local heavy rain or torrential rain, which is effective in preventing the drainage channel 220 from being broken or flooded.

  Furthermore, according to the embodiment of the present invention, the drain pump 100 can be controlled without the manager of the drain passage 220 operating the operation switch 150 of the drain pump 100. It is dangerous for the manager to operate the operation switch 150 of the drainage pump 100 in heavy rain, and an unexpected accident can be prevented.

  Furthermore, according to the embodiment of the present invention, a plurality of drainage pumps 100 can be managed simultaneously. For this reason, a plurality of drainage pumps 100 can be installed along the direction in which the drainage channel 220 flows, and the plurality of drainage pumps 100 can be centrally managed by one drainage channel monitoring system 1.

DESCRIPTION OF SYMBOLS 1 Drainage channel monitoring system, 10 Information processing part, 11 Position information acquisition part, 12 Weather information acquisition part, 13 Generation part, 14 Control part, 15 Global positioning system apparatus (GPS apparatus), 16 Image data acquisition part, 17 Information Unit, 18 log data storage unit, 19 reception unit, 20 Internet, 21 transmission unit, 22 display unit, 23 memory, 24 bus, 30 weather data distribution company, 40 motor, 50 weather information processing server, 60 wireless router, 100 drainage Pump, 110 Control unit, 120 Magnetic contactor, 130 Power supply, 150 Operation switch, 160 Water level sensor, 200 Basin, 210 Watershed, 220 Drainage channel

Claims (6)

A plurality of drainage pumps provided in the drainage channel to pump the drainage from the drainage channel;
A position information acquisition unit that acquires position information of at least two drain pumps of the plurality of drain pumps;
A weather information acquisition unit for acquiring weather information based on the position information;
Based on the weather information and the position information, a generation unit that generates discharge abnormality information that is information predicting that the water level of the drainage channel reaches a dangerous water level after a predetermined time ;
Based on the discharge abnormality information, a control unit that controls the amount of drainage of any one or more of the plurality of drainage pumps;
Equipped with a,
The generating unit specifies a flow path using a 3D map of the drainage basin, and corrects the discharge abnormality information by combining the specified flow path, the weather information, and the position information. drainage path monitoring system that. An image data acquisition unit that acquires photographic image data of the water surface of the drainage channel,
The said control part controls the amount of drainage of the said drainage pump based on the water level of the said drainage channel measured based on the photographic image data of the water surface of the said drainage channel which the said image data acquisition part acquired. The drainage channel monitoring system described in 1. A notification unit for notifying an administrator of the position information acquired by the position information acquisition unit;
The notification unit, after controlling the drainage pump based on the discharge abnormality information, according to claim 1 or 2, characterized in that notification of the positional information of the drainage pump as a target of the control administrators The drainage channel monitoring system according to any one of the above items. A log data storage unit for storing log data of the operation of the control unit;
The drainage monitoring system according to any one of claims 1 to 3 , wherein the generation unit corrects the discharge abnormality information based on the log data. A drainage channel monitoring method of a drainage pump provided with a plurality of drainage pumps provided in the drainage channel and pumping drainage from the drainage channel,
A position information acquisition step of acquiring position information of at least one or more drain pumps of the plurality of drain pumps;
A weather information acquisition step for acquiring weather information based on the position information;
Based on the weather information and the position information, a generation step of generating discharge abnormality information that is information that predicts that the water level of the drainage channel reaches a dangerous water level after a predetermined time ;
Based on the discharge abnormality information, a control step for controlling the amount of drainage of any one or more of the plurality of drainage pumps;
Equipped with a,
The generating step specifies a flow path using a 3D map of the drainage basin, and corrects the discharge abnormality information by combining the specified flow path, the weather information, and the position information. drainage path monitoring how to. A drainage channel monitoring program for a drainage pump provided with a plurality of drainage pumps provided in the drainage channel and pumping drainage from the drainage channel,
On the computer,
A position information acquisition function for acquiring position information of at least one or more drain pumps of the plurality of drain pumps;
A weather information acquisition function for acquiring weather information based on the position information;
Based on the weather information and the position information, a generation function that generates discharge abnormality information that is information that predicts that the water level of the drainage channel reaches a dangerous water level after a predetermined time ;
Based on the discharge abnormality information, to realize a control function for controlling the amount of drainage of any one or more of the plurality of drainage pumps ,
The generation function specifies a flow path using a 3D map of the drainage basin, and corrects the discharge abnormality information by combining the specified flow path, the weather information, and the position information. drainage path monitoring program to be.

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