JP2012172320A - Influent discharge water control device, influent discharge water control method and influent discharge water control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce determination time required for a facility operation.SOLUTION: An influent discharge water control device 1 controls equipment of an influent discharge water facility using equipment measurement information which is measurement information of influent discharge water tanks 51 and 54. The influent discharge water control device 1 comprises: an information collection section 11 which collects weather forecast information 713 which is a predictive value of weather information; an input section 15 to input the equipment measurement information; a storage section 14 to store the weather forecast information 713 and the equipment measurement information; a prediction calculation section 16 which predicts and calculates discharge water volume prediction information 80 which is future information for the influent discharge water tank 51 based on the weather forecast information 713 as well as influent change information 123 on influent discharge water flowing into the influent discharge water tank obtained by preliminary set influent delay time as well as preliminary set weather information; and an output section 17 which outputs predicted waste water volume information 80.

Description

  The present invention relates to an inflow / drainage control device, an inflow / drainage control method, an inflow / drainage control program, and the like.

  Engine pumps and gas turbine pumps are used as drainage pumps in rainwater drainage facilities. In recent years, engine pumps have been changed to gas turbine pumps in order to improve efficiency and increase the amount of drainage. Once the gas turbine pump is stopped, it cannot be restarted unless the exhaust gas temperature falls below a certain value. These drainage pumps take several minutes from when the power is turned on until the actual operation is started. Thus, it is the present condition that it takes 5 to 30 minutes to start and stop the drainage pump.

Under these circumstances, when the urban guerrilla heavy rain seen in recent years occurs, even if the drain pump is turned on after detecting the rain, the drainage will not be in time, and the pump well of the rainwater drainage facility will be drained by rainwater within a few minutes. It will be overflowing.
Therefore, operators of rainwater drainage facilities should pay sufficient attention to the start timing of drainage pumps based on the status of cumulonimbus and precipitation, and to the timing of stoppage of drainage pumps based on the status of the amount of rainwater flowing into the rainwater drainage facility and the amount of drainage. Need to be operated.

Therefore, drainage pump operation during guerrilla heavy rain is based on judgments that depend on the human senses based on past experiences of rainwater inflow, the values indicated by rain gauges installed in rainwater drainage facilities, and weather forecasts. Yes. In addition, the operation of the drainage pump under the control of the upstream installed flow meter and rain gauge is also carried out by human judgment.
However, this abnormal state of the inflow of rainwater occurs only several times a year, and improvements are required to strengthen the operation base in terms of maintenance and management costs for measuring devices and securing human resources for obtaining information.

  As a conventional technique, a method for obtaining rainfall fluctuations from time series data of past rainfall and predicting the inflows (for example, Patent Document 1), predicting the inflows from a prediction pattern that matches the information of the rainfall intensity meter. A method (for example, Patent Document 2) and a method (for example, Patent Document 3) for predicting an inflow amount in consideration of an inflow delay time to a facility using a rain gauge in a target basin set in advance have been proposed.

JP 2006-266072 A JP 2007-47108 A JP 2010-196369 A

  However, with the technologies disclosed in these documents, models are built based on past data, and future predictions are made according to the models, so it changes every time under conditions such as guerrilla heavy rain and typhoons that are not normal weather conditions. It was difficult to cope with the pattern, and improvement was demanded. In addition, the method of installing a rain gauge in the target basin has the problem that it requires maintenance and management costs for the measuring device outside the facility and is not practical.

  Then, this invention is made | formed in view of the said problem, and makes it a subject to provide the inflow / drainage control apparatus, the inflow / drainage control method, and the inflow / drainage control program which shorten the judgment time required for equipment operation.

  In order to solve the above problems, an inflow / drainage control device according to the present invention is an inflow / drainage control device that controls equipment in an inflow / drainage facility using facility measurement information that is measurement information of an inflow / drainage tank, and is weather information An information collecting unit that collects predicted weather information that is a predicted value of the input, an input unit that inputs the facility measurement information, a storage unit that stores the predicted weather information and the facility measurement information, the predicted weather information, A prediction calculation unit that predicts and calculates predicted water volume information that is future information of the inflow drainage tank based on the inflow delay time set in advance and the inflow change information into the inflow drainage tank based on preset weather information; And an output unit for outputting the predicted water amount information.

  According to the present invention, it is possible to shorten the determination time required for facility operation.

It is a figure for demonstrating the whole from the rainwater drainage facility which concerns on embodiment, and rain cloud detection to river drainage. It is a figure which shows the structure of the rainwater drainage facility and inflow drainage control apparatus which concern on embodiment. It is a figure for demonstrating the prediction water level calculation of the prediction calculating part in the inflow-drainage control apparatus which concerns on embodiment, (a) is a figure which shows an example of the 10-minute predicted rain amount among weather information. (B) is a figure which shows an example of the predicted rising water level of a pump well by 10-minute predicted rainfall and current rainfall. (C) is a figure which shows an example of a pump waste_water | drain amount and an estimated waste_water | drain amount. (D) is a figure which shows an example of a pump well water level and an estimated water level. It is a flowchart which shows operation | movement of the inflow drainage control apparatus which concerns on embodiment. It is a figure for demonstrating the whole from the intake facility which concerns on a modification, and rain cloud detection to river drainage.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. In each figure, common portions are denoted by the same reference numerals, and redundant description is omitted.
Drawing 1 is a figure for explaining the whole from rainwater drainage facility 50 and rain cloud detection to river drainage concerning an embodiment.
Rain that falls from rain clouds such as cumulonimbus clouds flows into the storm water pipe 60 through a side ditch and the like, and is finally stored in the pump well (inflow drainage tank) 51 of the rainwater drainage facility (inflow drainage facility) 50. Drained into the river 61.
As described above, it is necessary to activate the drainage pump 52 in advance for rainwater inflow that exceeds the planned drainage amount due to the urban guerrilla heavy rain in recent years. Moreover, even if the drain pump 52 is activated too early, the idle operation time is determined, so it is necessary to know an appropriate timing for activation.

  The inflow / drainage control device 1 predicts the inflow amount of rainwater flowing into the pump well 51 and the water level of the pump well 51 in order to know the appropriate timing. The weather information 71 of the Japan Meteorological Agency is used for the prediction of the water level and the inflow amount. The weather information 71 is sent from the weather station 70 to the weather information distribution company 73 via a dedicated line or the Internet network. The inflow / drainage control device 1 acquires the weather information 71 via the Internet network.

FIG. 2 is a diagram illustrating the configuration of the rainwater drainage facility 50 and the inflow / drainage control apparatus 1 according to the embodiment.
As shown in FIG. 2, in the rainwater drainage facility 50, rainwater that has flowed through the rainwater pipeline 60 is collected in the pump well 51. Rainwater collected in the pump well 51 is drained by a drain pump 52 and sent to a drain tank (inflow drain tank) 54. The discharge valve 53 is a check valve that prevents the drained rainwater from flowing backward when the drain pump 52 is stopped. Rainwater collected in the drain tank 54 is discharged into the river 61.

  In addition, the rainwater drainage facility 50 includes a power panel 40 including an MCCB (Molded Case Circuit Breaker) 41 and an MC (Magnet Contactor) 42 that shuts off the power supply to move the drainage pump 52 and the discharge valve 53, and the water level of the pump well 51. The pump well water level meter 55 for measuring the water level, the drainage water level meter 56 for measuring the water level of the drainage tank 54, the number control unit 20 for controlling the operation of the drainage pump 52, and the instruction indicating the predicted water level (predicted water amount information) 80 And a monitoring panel 30 provided with a total 31 and an alarm device 32 for generating an alarm.

[Configuration of inflow / drainage control device 1]
Next, the configuration of the inflow / drainage control device 1 will be described with reference to FIG.
First, the outline will be described. As shown in FIG. 2, the inflow / drainage control device 1 sets a filter setting file 12 a and a calculation setting file 12 b in advance, and selects necessary information from the acquired weather information 71. Thus, the predicted water level (predicted water volume information) 80 obtained by calculation is output.

  The inflow / drainage control device 1 includes an information collection unit 11, a setting file storage unit 12, a filter unit 13, a storage unit 14, an input unit 15, a prediction calculation unit 16, an output unit 17, and a control unit 18. It is equipped with.

The information collection unit 11 acquires weather information 71. The weather information 71 includes information such as the current time 711, the base 712, predicted rainfall (predicted weather information) 713 after 10 minutes, current rainfall (current weather information) 714, current tide level (current weather information) 715, weather, and atmospheric pressure. is there.
The current time 711 is the time when the current rainfall 714 and the current tide level 715 are observed, and is expressed in hours, minutes, and seconds. The base 712 is each area of the observation mesh of the radar rain gauge. The 10-minute predicted rainfall 713 is the rainfall expected at each base 712 from the current time 711 to 10 minutes later. The current rainfall 714 is the rainfall from 10 minutes before to the current time 711 at each base 712. The current tide level 715 is the tide level at the current time 711 (used in the modification of the present invention).
When a cumulonimbus or the like occurs, the weather information 71 is updated, and the weather information 71 is periodically sent to the information collecting unit 11.

  The setting file storage unit 12 stores a filter setting file 12a and a calculation setting file 12b. The filter setting file 12a stores setting values used in the filter unit 13 to be described later. The calculation setting file 12b stores setting values used in the prediction calculation unit 16 described later. The base 121 is a base set in advance for the rainwater drainage facility 50. The inflow delay time 122 is a time taken for rainwater to flow from the base to the pump well 51. About the inflow delay time 122, the approximate time is known beforehand from the past rule of thumb. The relationship information between rainfall and water level change (inflow change information into the inflow drainage tank based on weather information) 123 is the relationship between the amount of rainfall at a specific base and the amount of change in the water level of the pump well 51 when the rainwater flows. , Set in advance from past experience rules. For example, it is known in advance that if the rainfall is “5 mm” at the base “2”, the water level of the pump well 51 rises by “5 cm” when the rainwater flows. The QH characteristic curve 124 is information for obtaining the pump drainage amount from the water level of the pump well and the drainage tank, and depends on the pump characteristic. The alarm threshold value 125 is a water level threshold value for issuing an alarm, and is set in advance.

  The filter unit 13 selects and acquires necessary information from the weather information 71 acquired by the information collection unit 11. The filter unit 13 refers to the filter setting file 12a, and selects and acquires a matching one from the weather information 71. For example, as shown in FIG. 2, since the base, 10-minute predicted rainfall, current rainfall, and current tide level are set in the filter setting file 12a, the filter unit 13 selects these information from the weather information 71. get.

The accumulation unit 14 accumulates information acquired by the filter unit 13. The storage unit 14 also stores information acquired by the input unit 15 described later. The time series data to be accumulated can be at least several tens of minutes.
The input unit 15 includes a plurality of drainage pumps connected via a pump well level that is the level of the pump well 51, a drainage tank level that is the level of the drainage tank 54, and an MC-AUX (AUXiliary) (contactor operation contact) 43. A signal for grasping the state of 52 etc. (not shown) is acquired. The pump well level is stored in the storage unit 14 in seconds.

  The prediction calculation unit 16 is predicted from the pump well water level, the drain water level, the predicted rainfall 713 after 10 minutes, the current rainfall 714, the inflow delay time 122, the relationship information 123 between the rainfall and the water level change, and the QH characteristic curve 124. The predicted water level 80 that is the rising water level of the pump well 51 is predicted and calculated. Details will be described later.

The output unit 17 outputs the predicted water level 80 to the indicator 31. Further, when the predicted water level 80 exceeds the alarm threshold value 125, the output unit 17 outputs the predicted water level 80 to the alarm device 32. The alarm device 32 issues an alarm or an automatic operation signal to the corresponding device. Etc.
Further, the output unit 17 outputs the predicted water level 80 to the number control unit 20, and the number control unit 20 controls the number of drain pumps 52 to be operated by turning the MC 42 on and off based on the predicted water level 80.

[Predicted water level calculation method]
Next, a predicted water level calculation method in the prediction calculation unit 16 will be described with reference to FIG.
FIG. 3A is a diagram illustrating an example of the 10-minute predicted rainfall 713 in the weather information 71. The horizontal axis is time, and the vertical axis is the predicted rainfall after 10 minutes. It is assumed that the weather information 71 whose current time is “15:30” has been sent to the information collecting unit 11. Reference numeral 101 denotes a predicted rain amount 10 minutes after the current time “15:30”, which is “15 mm”. The estimated rainfall after 10 minutes is sent periodically.

  FIG.3 (b) is a figure which shows an example of the predicted rising water level of the pump well 51 by 10-minute predicted rainfall and the present rainfall. The horizontal axis is time, and the vertical axis is the predicted rising water level. In the calculation setting file 12b, the inflow delay time of the base “2” is set to “5 minutes”. Further, the relationship information between the rainfall and the water level change is “y = 10x”. Here, x is rainfall and y is a predicted rising water level. In this graph, for the sake of simplicity, the predicted rising water level calculated in the past is not considered. That is, only the predicted rainfall after 10 minutes and the current rainfall obtained at time “15:30” are shown. In addition, when considering the predicted rising water level calculated in the past, it may be added.

  The prediction calculation unit 16 calculates the pump well by the predicted rainfall after 10 minutes from the predicted rainfall after 15 minutes “15 mm” and the relationship information “y = 10x” between the rainfall and the water level at the time “15:30”. The predicted rising water level 103 “15 cm” is calculated. Since the time of the predicted rising water level 103 is the rainfall after 10 minutes and the inflow delay time “5 minutes”, the time is “15:45” 15 minutes after the current time “15:30”. Become. In this way, the predicted rising water level 103 is determined.

  Next, at time “15:30”, the prediction calculation unit 16 calculates the current rainfall from the current rainfall “5 mm” at time “15:30” and the relationship information “y = 10x” between the rainfall and the water level change. The estimated rising water level 102 “5 cm” of the pump well is calculated. The time of the predicted rising water level 102 is the current rainfall amount and the inflow delay time “5 minutes”, and therefore the time “15:35” five minutes after the current time “15:30”. In this way, the predicted rising water level 102 is determined.

  Next, the prediction calculation unit 16 calculates the predicted rising water level at times before and after the predicted rising water level 102 and the predicted rising water level 103 by linear interpolation or the like. In addition, since 5 minutes-30 minutes are required for starting and a stop of a drain pump, the prediction calculating part 16 is calculated to about 30 minutes ahead predicted rising water level.

  FIG. 3C is a diagram illustrating an example of the pump drainage amount and the predicted drainage amount. The horizontal axis is time, and the vertical axis is pump discharge. The prediction calculation unit 16 calculates the pump drainage amount from the pump well water level and the drain tank water level, the QH characteristic curve, and the number of operating drain pumps. Further, the prediction calculation unit 16 calculates a predicted drainage amount that is a future pump drainage amount by linear interpolation or the like from the pump drainage amount data for a certain past time.

FIG. 3D is a diagram illustrating an example of the pump well water level and the predicted water level 80. The prediction calculation unit 16 calculates a predicted inflow amount that is an expected inflow amount to the pump well 51 from the predicted rising water level, subtracts the predicted drainage amount from the predicted inflow amount, and converts the obtained result into a water level change. The predicted water level 80 is calculated by adding the current pump well water level to this water level change. Note that the conversion between the amount of inflow or drainage and the change in the water level is obtained by using the horizontal cross-sectional area of the pump well. Further, the prediction calculation unit 16 may calculate the predicted water level 80 by calculating the water level change from the pump drainage amount and subtracting this water level change from the predicted rising water level.
In the above description, for the sake of simplicity, the number of the bases 121 is one, but even if there are a plurality of bases, the predicted rising water level may be added.

  The inflow / drainage control device 1 can be realized by a general computer having a CPU (Central Processing Unit) and a memory (not shown). At this time, the inflow / drainage control device 1 operates according to the inflow / drainage control program that causes the computer to function as each functional unit described above. Further, the inflow / drainage control device 1 may be realized by a hardware circuit such as an IC (Integrated Circuit) or an LSI (Large Scale Integration).

[Operation of inflow / drainage control device 1]
Next, the operation of the inflow / drainage control device 1 will be described with reference to FIG.
As shown in the flowchart of FIG. 4, in step S <b> 11, the information collection unit 11 acquires weather information 71.
In step S12, the filter unit 13 selects and acquires information preset in the filter setting file 12a from the weather information 71. The acquired information is stored in the storage unit 14.
In step S <b> 13, the input unit 15 acquires the water levels of the pump well 51 and the drain tank 54. The acquired water levels of the pump well 51 and the drain tank 54 are accumulated in the accumulation unit 14.

In step S <b> 14, the prediction calculation unit 16 calculates the predicted rising water level with reference to the predicted rainfall 713 after 10 minutes, the inflow delay time 122, and the relationship information 123 between the rainfall and the water level change. Further, the prediction calculation unit 16 calculates the predicted rising water level with reference to the current rainfall 714, the inflow delay time 122, and the relationship information 123 between the rainfall and the water level change. Furthermore, the prediction calculation unit 16 calculates the predicted rising water level before and after the calculated predicted rising water level time by linear interpolation.
In step S15, the prediction calculation unit 16 calculates the predicted inflow amount to the pump well 51 based on the predicted rising water level.

In step S16, the prediction calculation unit 16 calculates a predicted drainage amount based on the past pump drainage amount.
In step S17, the prediction calculation unit 16 calculates the predicted water level 80 of the pump well 51 based on the predicted inflow amount and the predicted drainage amount.
In step S18, the control unit 18 determines whether or not the predicted water level 80 has exceeded a preset threshold value.

When the predicted water level 80 does not exceed the preset threshold value (No at Step S18), the control unit 18 returns to Step S11 and continues the process.
On the other hand, when the predicted water level 80 exceeds a preset threshold value (step S18 / Yes), in step S19, the output unit 17 outputs an alarm signal.
Thus, this process ends.

According to the present embodiment, the drainage pump can be started and stopped at an appropriate timing in order to cope with the sudden rainwater inflow of sudden guerrilla heavy rain.
Conventionally, emergency equipment operation has been performed by human judgment taking various factors into consideration. However, by providing minimum information such as predicted water level and predicted inflow, it is possible to shorten the judgment time by reducing human judgment materials. It is done.

In addition, by integrating alternative means of measuring devices outside the facility into the JMA information, which is public information, maintenance costs such as periodic inspections of measuring devices outside the facility can be reduced, and prediction errors can be reduced. .
Moreover, the load at the time of emergency operation of the facility operator can be reduced by outputting an automatic operation signal to the corresponding device by determining the predicted water level and a preset threshold value.

<Modification>
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to this, For example, it can change as follows in the range which does not deviate from the meaning of this invention.

FIG. 5 is a diagram for explaining the entire intake facility 50B and rain cloud detection to river drainage.
As shown in FIG. 5, in the intake facility 50B near the river mouth, when the tide level changes due to a typhoon or a tsunami, the operation of opening and closing the intake gate 57 and the roller gate (not shown) for preventing salt water intake is determined by human judgment. We are carrying out.
The tide level information is stored as the current tide level 715 in the weather information 71 based on data from the weather satellite 72. Based on the current tide level 715, a future tide level can be predicted, and the opening and closing operation of the intake gate 57 can be performed at an appropriate timing together with the salinity measurement 62.

  In the embodiment of the present invention, the steps of the flowchart show an example of processing that is performed in time series in the order described. However, even if they are not necessarily processed in time series, they are executed in parallel or individually. The processing to be performed is also included.

  In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Inflow drainage control apparatus 11 Information collection part 12 Setting file storage part 12a Filter setting file 12b Calculation setting file 13 Filter part 14 Accumulation part 15 Input part 16 Prediction arithmetic part 17 Output part 18 Control part 20 Number control part 30 Monitoring board 31 Instruction Total 32 Alarm device 40 Power panel 50 Rainwater drainage facility (inflow drainage facility)
50B Water intake facility (inflow drainage facility)
51 Pump well (inflow drainage tank)
52 Drainage pump 53 Discharge valve 54 Drainage tank (inflow drainage tank)
55 Pump well level gauge 56 Drain tank level gauge 57 Intake gate 60 Rainwater pipeline 61 River 70 Observatory 71 Weather information 72 Meteorological satellite 73 Weather information distribution company 80 Predicted water level (predicted water volume information)
102 Predicted rising water level 103 Predicted rising water level 121 Base 122 Inflow delay time 123 Relation information of rainfall and water level change (inflow change information to inflow drainage tank by meteorological information)
124 QH characteristic curve 125 Warning threshold 711 Current time 712 Base 713 Predicted rainfall after 10 minutes (predicted weather information)
714 Current rainfall (current weather information)
715 Current tide level (current weather information)

Claims (8)

An inflow and drainage control device that controls equipment in an inflow and drainage facility using equipment measurement information that is measurement information of an inflow and drainage tank,
An information collection unit that collects predicted weather information that is a predicted value of weather information;
An input unit for inputting the equipment measurement information;
An accumulating unit for accumulating the predicted weather information and the facility measurement information;
Based on the predicted weather information, the inflow delay time set in advance and the inflow change information into the inflow / drain tank based on the preset weather information, predicted water volume information that is future information of the inflow / drain tank is predicted. A predictive computation unit for computing,
An output unit for outputting the predicted water volume information;
An inflow / drainage control device characterized by comprising: The prediction calculation unit, based on the predicted weather information, the inflow delay time set in advance and the inflow change information into the inflow drainage tank according to the preset weather information, the future rising water level of the inflow drainage tank The inflow and drainage control device according to claim 1, wherein the predicted ascending water level is calculated by interpolating the predicted ascending water level before and after the calculated estimated ascending water level. Based on the current weather information, the inflow delay time set in advance and the inflow change information into the inflow drainage tank according to the preset weather information, the prediction calculation unit A certain predicted rising water level is calculated, and the predicted rising water level calculated from the predicted weather information and the predicted rising water level before and after the time of the predicted rising water level calculated from the current weather information are calculated by interpolation. The inflow / drainage control device according to claim 1 or 2. The inflow and drainage control device according to any one of claims 1 to 3, wherein the weather information is rainfall or a tide level. The said prediction calculating part uses the pump well water level which is the water level of a pump well, the drainage tank water level which is the water level of a drainage tank, and the QH characteristic curve for calculating pump drainage, and the pump drainage amount of a pump well The inflow / drainage control device according to any one of claims 1 to 4, wherein the inflow / drainage control device is calculated. The output unit compares a predicted threshold value with the predicted water volume information, and outputs an alarm signal when the predicted water volume information exceeds the threshold value. The inflow / drainage control device according to claim 1. An inflow / drainage control method in an inflow / drainage control device that controls equipment in an inflow / drainage facility using equipment measurement information that is measurement information of an inflow / drainage tank,
The control part of the inflow / drainage control device comprises:
Collect forecast weather information, which is a forecast value of weather information,
Enter the equipment measurement information via the input unit,
Accumulating the predicted weather information and the equipment measurement information,
Based on the predicted weather information, the inflow delay time set in advance and the inflow change information into the inflow / drain tank based on the preset weather information, predicted water volume information that is future information of the inflow / drain tank is predicted. Operate,
The inflow and drainage control method characterized by outputting the predicted water volume information.   An inflow / drainage control program for causing a computer to execute the inflow / drainage control method according to claim 7.

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