JP3435798B2 - Rainwater pump operation support system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for concentrating rainwater in a predetermined basin by a storm sewer and performing an operation support process for the facility. 2. Description of the Related Art One of the main purposes of a sewerage business is to prevent flooding by quickly removing rainfall. Rainwater removal is a technology that efficiently concentrates rainwater from urban areas during rainfall and pumps it down to rivers and other places. In recent years, with the rapid urbanization, the following points have become issues. (1) The penetration rate of rainwater to the ground surface tends to decrease remarkably, so that the time from the first rainfall until the rainwater flows into the rainwater elimination facility is shortened, and the flow rate is increasing. . [0004] (2) Expected damage in the event of inundation is incomparably greater than before, and higher levels of reliability are being demanded by society. In view of such a situation, rainwater trunk facilities having a storage function are being planned in various places. This type of rainwater trunk line has the advantage of reducing polluted runoff in the early stage of rainfall in the combined sewer system, and also has an enhanced rainwater elimination function, so that it can be a countermeasure against flooding during heavy rainfall. To operate such a rainwater trunk line optimally, it is important to open and close the storage gate and to operate the rainwater pump. These operations are performed in consideration of the rainfall condition, the outflow characteristics of the technical pipe leading to the stormwater main line, the water level of the pump well, and the like. From such a viewpoint, a rainwater pump operation support system has been proposed which measures a rainfall amount, predicts an inflow amount flowing into a rainwater pumping station, and controls a drainage pump. In such a rainwater pump operation support system, a method is adopted in which a database is adjusted by comparing a result of predicting an inflow amount with a rainfall record and an actually measured value, and the adjustment result is confirmed at the next rainfall. In the database, data such as the area of the area flowing into the pumping station, the permeability, the impervious area, etc. are obtained from maps and aerial photographs as basin data, but are adjusted periodically because the terrain changes. Required. Therefore, it is necessary to determine the validity of the database adjustment, but the following procedure occurs as a means of this adjustment. As a database adjusting means, as shown in FIG. 7, a database is constructed from maps, aerial photographs, civil engineering drawings of pipes, etc., and this database is set in the support system. Adjust the database by comparing volumes. As a process corresponding to a change in the terrain and the like, as shown in FIG. 8, the database is reviewed and the database is adjusted. I do. [0010] When the database is adjusted by the conventional method, a rainfall waiting period occurs before the completion of the operation can be determined, and the adjustment result can be determined only after the rainfall is recorded. Therefore, the judgment is delayed, and the check of the adjustment database depends on the check by a human on a desk, so that there is a point of lack of reliability. In addition, if the database was adjusted in the pump station control, humans would need to enter during the next rainfall, and complete automation could not be performed. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a rainwater pump operation support device which is automated by increasing the number of packets in a database. In order to achieve the above object, a rainwater pump operation support system according to the present invention provides a rainwater drainage system in which rainwater flows in from a rainwater collecting area via a rainwater main pipe. In the rainwater pump operation support system for the facility, the inflow rate prediction means for predicting the inflow amount of inflow water into the stormwater drainage facility based on rainfall measurement data in the area, and the prediction information of the inflow rate prediction means are also used. An on-line system having a pump control function of controlling a pump of rainwater drainage equipment, a rainfall data recording unit that records measurement data introduced to the inflow amount prediction unit, and an inflow amount prediction calculation in the inflow amount prediction unit. A database group having a plurality of packet data divided into sub-units including a basin information to be used; An operation control unit having an operation library to be used;
An off-line system having a simulation unit for predicting rainfall inflow based on data from the operation control unit, outputting a predicted value to an operation library , and using the inflow prediction operation, and a result display unit for displaying simulation results The database group of the arithmetic and control unit has an on-line system and an off-line system .
The area of the area flowing into the rainwater pumping station is calculated from the
Packet data in the regional database based on the
The data selection, and, compared to the past record data by performing a simulation of predicted using historical rainfall records data for offline system, characterized that you deploy the tuned database online system. An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows the basic configuration of a rainwater pump operation support system according to an embodiment of the present invention. In FIG. 1, reference numeral 10 denotes an online system for controlling a rainwater pump, and reference numeral 20 denotes arithmetic control for controlling the online system 10. parts, 30 are off <br/> line system which operates under the control of the arithmetic and control unit 20. The online system 10 includes an inflow amount prediction function 11 for predicting an inflow amount based on measured value data, and a pump control function 12 for controlling a pump based on prediction information data from the inflow amount prediction function 11. Having. The arithmetic control unit 20 includes a database group 21, an arithmetic library 22, and a rainfall data recording unit 23.
Is composed of a plurality of databases (21-1) to (21-6). Off line system 30 Mi
And a display unit 32 for displaying the result of the simula- rate as Interview configuration unit 31 by the simulation unit 31. Simulation unit 31, as shown in FIG. 2,
An arbitrary rainfall pattern creation unit 33 and a rainfall inflow prediction function 34 for predicting rainfall inflow based on data from the arbitrary rainfall pattern creation unit 33 are provided. Here, the rainfall record is the inflow amount prediction function 11
Saves the measurement data (rainfall, water level, measured inflow, predicted inflow, etc.) as past rain data, and the number of recorded data is limited by the storage capacity of the storage device . [0017] If you can not correspond to the rainfall pattern just past rainfall records any rainfall, is data for it simula- Resho <br/> down to create any rainfall patterns to correspond to such pumping stations new . The calculation library 22 performs calculations for predicting the inflow amount with the online system 10 and the offline system.
It is made re-entrant in the calculation modules for use in common at 2 functional systems out 30. The result display displays the measured value and the adjustment database and predicted values by existing database when performing simula- Les <br/> Shon using historical data graphically. Figure 3 shows the result display example, the curve C1 is measured inflow, curve C2 inflow amount prediction value due to rainfall inflow prediction function 11, the curve C3 is a flowing amount prediction value by simulation. FIG. 4 is a processing flow of the rainwater pump support device according to the embodiment of the present invention. As shown in FIG. 4, a one-minute period start is performed, and a predicted start timing is determined in step ST1. If the start is possible, the process proceeds to step ST2. In step ST2, a selection is made as to whether the calculation method is a batch method or a division method. In the case of the collective method, the predictive calculation process of the collective method proceeds to step ST4, and in the case of the split method, the predictive calculation process of the split method is performed in step ST5. After performing any one of these prediction calculation processes, it is determined in step ST6 whether or not a rainy period is in progress. If it is during a rainy period, the process proceeds to step ST7, where the predicted value up to the previous time is edited and during the rainy period. If not, a rainfall start process is performed in step ST8, and the predicted value is stored. Next, the process proceeds to step ST9, where relevant data such as a water level, a gate opening, and a pump operation state are input, and the process proceeds to step ST10. In step ST10, the pump water level after 5 minutes is predicted from the pump well water level, the gate opening, the pump pumping amount, the predicted inflow amount, and the like. In accordance with this prediction, a pump operation command is determined from the pump well water level predicted value and the predicted inflow as a control determination process in step ST11. Based on this determination, control output processing is performed in step ST12. Here, as the control determination process and the control output process, the pumps, such as the electric pump and the engine pump, which are started at different start timings are determined and started. The most characteristic feature of the present invention is that a device for measuring the rainfall and predicting the amount of inflow flowing into the stormwater pumping station, thereby controlling the drainage pump, uses a database (basin basin information) used for calculating the amount of inflow. 5-6.
As shown in FIG. FIG. 5 is a flowchart showing a method of determining a rainfall inflow amount prediction database.
Calculating a zone area to flow from the map data S 3 to rainwater pumping station by piping diagram data S 2 and the map of water collection piping diagram performs regional database configuration packet selecting the calculated data S4 on the basis of the selection result S5 The prediction calculation method is selected based on this. As a result of the selection, a database based on the division system is constructed. If the selection system is the batch system, a database based on the batch system is constructed according to the batch system command signal S7. The photograph data S1 is used for grasping the situation such as the permeation area / impermeable area of the area. The piping diagram data S2 is used to determine the area flowing into the rainwater pumping station and to divide the area based on the inflow delay time based on information such as the inclination and distance of the piping. The map data S3 is used to calculate information on the designated area based on the above information (calculation contents include an area, a penetration area ratio, and the like in units of area). In selecting a regional database setting packet, five packets having the same structure are prepared for offline use. With respect to the prediction calculation method,
When constructing a database, there are cases where the database is constructed from the entire information with one section as one area, and cases where the database is constructed by dividing the area into a plurality of sections based on the piping conditions etc. If there is one area, the prediction calculation method Is a collective method, and if there are a plurality of areas, a prediction calculation is performed by a division method. As a method of constructing a database when the prediction calculation is performed in a batch system, the area flowing into the rainwater pumping station from the time when it starts to rain from the rainwater pumping station as a delay time is defined as the area of the area in units of 5 minutes, and Set the rate and unevenness in the database of the entire inflow area. As a method of constructing a database in the case where the prediction calculation is of the segmented type, as a method of constructing a database, the area which first flows into the rainwater pumping station from the time when it starts to rain in each of the divided areas is set to 0 point. The data is set in the database for each zone at every 5 minutes of the inflow delay for each zone. In this case, the inflow delay time at the zero point to the pump station is set separately. As a development of a database for predictive calculation,
Of the databases of the database group 21 shown in FIGS. 1 and 2, basically, one packet (for example, database 21-1) for online use and five packets (databases 21-2 to 21-6) for offline use. are configured, run a forecast simulation using historical rainfall records set to any packet (last rainfall no rainfall pattern records arbitrarily created) for offline when setting the database Then, it is compared with the actually measured inflow amount of the past record, tuned, and it is confirmed that they are almost the same, and then developed for the online database. (1) The outline of the prediction operation by the batch method is as shown in Tables 1 and 2. (1a) When rainfall is recorded, the following predicted values are created. [Table 1] (1b) The following prediction is made 5 minutes after the start of rainfall recording. [Table 2] (1c) In the subsequent processing, the inflow amount predicted after 5 minutes as described above is totalized while shifting by 5 minutes, and the inflow amount is accurately predicted. (2) An example of the prediction calculation by the division method is as follows. (2a) When rainfall is recorded, the following predicted values are created. [Table 3] (2b) Five minutes after the start of rainfall recording, the following predicted values are obtained. [Table 4] [Table 5] (2c) In the subsequent processing, the inflow amount predicted after 5 minutes as described above is counted while being shifted by 5 minutes, and the inflow amount is accurately predicted. The database adjustment processing corresponding to the change in the terrain and the like is executed according to the flow shown in FIG. That is, the database is reviewed in step ST13,
At 14, the database is adjusted. When adjustment is complete the process proceeds to step ST15 to execute the inflow simulation, shea
A simulation result is determined (step ST16).
Here, if a review is necessary, steps ST13 to ST13 are executed.
Step 16 is repeated. According to the adjustment processing shown in FIG. 6, there are the following major differences as compared with the conventional adjustment method. (1) Adjustment time If the adjustment is performed by the conventional method, a rainfall waiting time occurs before the completion of the operation can be determined. However, when the adjustment is performed by the present method, the adjustment waits for the rainfall. Adjustment can be completed in a short time without any need. [0045] (2) case of adjusting by validity judgment this method, but it is a validity check at various rainfall patterns for <br/> simulation using historical rainfall records, the prior art In some cases, it is rainfall. Therefore, it is dangerous to determine that the adjustment is completed in one rainfall. (3) Influence on Inflow Amount Prediction Control In the case of performing the prediction control by the conventional method, since the judgment of the completion of the adjustment requires rainfall, the prediction control function is stopped until it can be judged that the adjustment is completed. Although it is necessary and the human hand needs to be involved in the pump control, in this method, since the adjustment is completed in a short time, unmanned operation becomes possible when the adjustment is completed. According to the rainwater pump operation support system according to the above embodiment, five packets are prepared for the number of packets in the database in addition to the packet for which the inflow is predicted, and the five patterns of the database and the rainfall records recorded in the past are used.
Because was constructed the simulation function share the inflow prediction computation unit, there are various advantages as follows. (A) Can be used for database backup. (B) If the database is temporarily changed during plumbing work or the like, the data before the work can be saved, so even if data is created only during the work period, the database can be restored immediately after the work is completed. . (C) A plurality of prediction methods can be handled by the prediction method (collective, divided). For example, how to use packets 1 and 2 for batch and packets 3, 4, and 5 for division. [0051] (d) during the rainfall period can also inflow simulation in the middle of performing a predictive control online. (E) Improvement of database reliability. (F) High versatility. Even in an area where the inflow rate greatly changes depending on the rainfall pattern, the database can be operated by operating six packets (including one online packet). For example, in an area where the rainfall pattern changes significantly in the four seasons and the database used in the spring is less accurate in the summer and needs to be adjusted,
A database of the four seasons can be prepared in advance. (G) Database adjustment (tuning)
Since it can be performed using past rainfall records etc., when used online, high accuracy is immediately exhibited and unmanned operation of the pump station becomes possible. As described above, the present invention prepares the required number of packets in the database in addition to the packets actually predicted to flow, and prepares the database of the required number of patterns in the past. the recorded rainfall recorded, since it is obtained by constructing a simulation function share the inflow prediction computation unit, the following effects can be obtained. (A) Since there can be a plurality of databases used for the calculation of the inflow amount, generation management of the databases can be performed. [0057] (b) validity check in the adjustment of the databases by simulation functions shared arithmetic unit in inflow prediction calculation is automated. (C) Even if the database is adjusted, the operation of the pumping station becomes unmanned.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a configuration principle of a rainwater pump operation support device according to an embodiment of the present invention. FIG. 2 is a block diagram of a rainwater pump operation support device according to an embodiment of the present invention. FIG. 3 is a characteristic diagram relating to a rainfall amount and an inflow amount of the rainwater pump operation support device according to the embodiment of the present invention. FIG. 4 is a processing flow of a calculation library of the rainwater pump operation support device according to the embodiment of the present invention. FIG. 5 is an adjustment flow of a rainfall inflow prediction database of the rainwater pump operation support device according to the embodiment of the present invention. FIG. 6 is a flowchart of a database adjustment procedure. FIG. 7 is a database adjustment flow of the conventional rainwater pump operation support device. FIG. 8 is a database adjustment flow of the conventional rainwater pump operation support device. [Description of Reference Numerals] 10 ... online system 11 ... rainfall inflow prediction function 12 ... pump control function 20 ... operation control unit 21 ... database unit 22 ... operation library 23 ... rain recording section 30 ... off-line system 31 ... simulation unit 32 … Result display part 33… Arbitrary rainfall pattern creation part

──────────────────────────────────────────────────続 き Continuation of the front page (72) Aya Takagi Inventor Meidensha 2-1-1-17 Osaki, Shinagawa-ku, Tokyo (56) References JP-A-5-265513 (JP, A) JP-A-5-265 156689 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F04D 15/00 F04B 49/00 E03F 1/00 B05B 13/04

Claims (1)

(57) [Claims] [Claim 1] In a rainwater pump operation support system in a rainwater drainage facility where rainwater flows in from a rainwater collecting area via a rainwater main conduit, the rainfall measurement data in the area is also measured. And an online system having a pump control function of controlling a pump of a rainwater drainage facility based on prediction information of the inflow rate prediction means, and an inflow amount prediction means for predicting an inflow amount of inflow water to the stormwater drainage facility. A rainfall data recording unit that records measurement data introduced into the inflow amount prediction unit; and a plurality of packet data divided into small units that also include basin information used in inflow amount prediction calculation in the inflow amount prediction unit. a database unit having an arithmetic controller having a computing library used during inflow operation in the inflow amount prediction means, data from the arithmetic control unit Based predicted rainfall inflow and includes a simulation unit that uses a predicted value to output to inflow prediction calculation in operation library, and off-line system having a result display unit for displaying the simulation result, the operation control unit The database group has an online system and an offline system .
Calculate the area of the area that flows into
Then, select the packet data in the regional database settings,
And historical rainfall record data compared with the past record data by performing a simulation predictions using a rainwater pump driving support system characterized that you deploy the tuned database of online system for off-line system.