JP2003186928A - Method for inputting data of pipeline network model - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for analyzing a pipeline network based on a pipeline network model obtained by modeling a water supply pipeline network with nodes and branches, and simplifying the input and change of the data of the pipeline network model. <P>SOLUTION: A computer for data input on which GIS software is mounted, a spatial data base diagram issued by a Geographical Survey Institute is picture-displayed, and nodes and branches are coordinate position-inputted on the spatial data base diagram by referring to a water supply pipeline diagram owned by a waterworks enterprise or the like, and the branches and nodes inputted on the spatial data base graphic are integrated into vector data as coordinate position data, and each node information is acquired by referring to the water supply pipeline diagram, and the symbol picture of the node is automatically inputted to the coordinate position, and the branch connecting those nodes is automatically inputted as a linear picture, and the object data of the branches and the nodes are automatically generated, and numerical data indicating each node attribute and branch attribute are inputted by using the keyboard of a computer. In this case, ground height information is acquired by overlapping an altitude map on the pipeline network model diagram, and data change is executed at a client computer side through the Internet communication or the like. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe network analysis system for supporting water distribution operation based on state analysis of a water supply pipe network, and more particularly to a data input method for a pipe network model.

[0002]

2. Description of the Related Art FIG. 5 shows a pipe network analysis system for water distribution operation. Pipe network model 1, the actual water distribution network 2 which starts distribution areas, distribution reservoir and water runoff point, pump, pressure reducing valves, nodes for abstraction of conduit connection point (node) N ₁ ~N _P
And the pipeline that connects them (branch) B _{1 to} B _Q
Create from.

For such an abstracted pipe network model,
The pipe network analysis device 3 uses pipe network data and measurement data stored in the database 4, and analyzes them by applying physical laws such as a hydraulic equation, an energy conservation law, and a flow conservation law.

This analysis method is roughly performed by the energy level method or the flow rate method, depending on whether the flow rate equation of the pipeline is represented by the Hazen-Williams equation or the like and the unknown is the node energy level or the pipeline flow rate. .

The purpose of the calculation in the operational stage of the pipe network analysis is to improve the pipe network model while comparing it with the actual data when the pipe network is actually operated, and consider the temporal and spatial fluctuations of the demand water quantity. This is to obtain the basic materials for performing expansion design and facility renewal necessary for satisfying demand, and for thinking about emergency measures for emergency situations such as pipe loss, water supply restriction, and major fire. .

The data required by the pipe network model 1 consists of drawing data for showing the model and numerical data showing the attributes of each node and pipe line necessary for pipe network analysis, and the procedure is shown in FIG. As described above, it is input as electronic data by the following work.

(S1) An original diagram of a pipe network diagram as a model is read into a computer as electronic data by an image scanner or the like.

(S2) The read electronic data is converted into binary raster data.

(S3) Using the pointing device such as a mouse, along the raster data that has been read, the symbols of nodes and pipelines are input as an object by superimposing them on the raster data.

(S4) An operator reads attribute data such as a pipe diameter and a pipe length of a pipe and inputs it from a keyboard. In addition, attribute data such as the coordinates of pipelines are read by inputting commercial land data base information.

Note that the attribute data includes node numbers, node ground heights, node populations, and demand quantity basic units as node attributes, and pipeline numbers, pipe diameters, pipeline lengths, resistance coefficients, etc. as pipeline attributes. is there.

[0012]

The conventional data input method for the pipe network model is automatically performed by using a computer or peripheral equipment in the processes (S1) and (S2), but the processes (S3) and ( In S4), since a person operates an input device (mouse or keyboard), there are the following problems.

(A) Objectization of raster data
Because of manual labor, a large number of workers and input terminals are required to process a wide range or detailed drawings in a short time.

(B) In the case where a large amount of attribute data such as nodes and pipelines are used, a large number of workers and input terminals are required for processing in a short time, and input errors are likely to occur. Become.

(C) Even a skilled person takes a considerable amount of time to create a pipe network model.

(D) By the time the completion of the pipe network analysis system, in order to match the customer's request, many meetings and reworking with the customer are required, which increases the number of work steps and delays the development.

(E) When the pipe network is changed, it is necessary to change the model data for the changed portion.

An object of the present invention is to provide a pipe network model data input method that simplifies data input and change of a pipe network model.

[0019]

[Means for Solving the Problems] According to the present invention, a spatial data infrastructure diagram issued by the Geospatial Information Authority of Japan and a water pipeline diagram owned by a waterworks company are processed as information by a drawing information system (GIS), By reducing the work of inputting network model data and transferring the network model data from the server computer on the network analysis system side to the computer on the client side via the communication network, remote maintenance for data changes is facilitated. The following method is featured.

(1) A method for inputting data of a pipe network model in a system for conducting a pipe network analysis based on a pipe network model in which a water supply pipe network is modeled with nodes and pipelines, which is for data input with GIS software installed. On the computer, display the spatial data infrastructure diagram issued by the Geospatial Information Authority of Japan on the screen, refer to the water supply pipeline diagram owned by the water supply enterprise, etc., enter the coordinate positions of the nodes and pipelines on the spatial data infrastructure diagram, Converting the pipeline and nodes input on the spatial data infrastructure diagram into vector data using coordinate position data, obtaining each node information by referring to the water pipeline diagram, and using the processing function of the GIS software, The symbol image of the node is automatically input at the coordinate position, the pipeline connecting the nodes is automatically input as a line image, the object data of the pipeline / node is automatically generated, and the key of the computer is used. Characterized by inputting a numerical data representing each node attribute and the flow path attribute using over de.

(2) The elevation map prepared in the national land data infrastructure map is overlaid on the pipe network model diagram, and the ground height of the overlaid pipe network nodes is collated with the elevation map to make it an object. Characterize.

(3) A client computer which can communicate information with the data input computer by using a software of a remote monitoring control system and a communication network is prepared, and the data input computer is used when changing the water network diagram. It is characterized in that the information of the pipe network model constructed in (1) is transferred to the client computer, and the data of the pipe network model is changed and inputted by the client computer.

(4) Both of the computers are equipped with the same spatial data infrastructure map and elevation map, and only the network diagram is exchanged between the two computers to change the water network diagram. To do.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) FIG. 1 shows a data input procedure of a pipe network model according to an embodiment of the present invention.
Use IS (Drawing Information System).

First, commercially available GIS software is installed in the network data input computer, and data input is started.

First, a numerical map (spatial data infrastructure diagram) issued by the Geospatial Information Authority of Japan is read and displayed on the screen, and referring to the water supply pipeline diagram G owned by the water supply company, etc., the nodes are plotted on the numerical map. And the coordinate position of the pipeline is input (S11).

Next, vector data in which the pipelines and nodes input on the numerical map are used as coordinate position data is obtained (S1).
2). By using this GIS processing function by converting this vector data, the pipeline length is automatically calculated as the distance between a pair of nodes from the length between coordinate positions input on the map, and the data is Obtained automatically.

Next, each node information is obtained by referring to the water pipe diagram G, and the symbol image of the node is automatically input to the coordinate position by using the processing function of GIS, and the pipe connecting the nodes is connected. Is automatically input as a line image, and the object data of the pipeline / node is automatically generated (S13).

Finally, the keyboard is used to input numerical data indicating each node attribute and the pipeline attribute (S14). As described above, these data are entered as node attributes such as node number, node ground height, node population, and basic unit of demand volume, and pipeline attributes such as pipeline number, pipe diameter, pipeline length, and resistance coefficient. input.

Therefore, in the present embodiment, by utilizing the GIS function, it is possible to acquire the pipeline length data and automatically input the graphic symbols of the nodes and pipelines, and further, the pipeline network corresponding to the water pipeline diagram. Analysis chart data can be obtained.

(Second Embodiment) FIG. 2 shows a data input procedure of the present embodiment. 1 is different from FIG. 1 in that an elevation map superimposing process (S15) is added to the pipe network model diagram.

The elevation map is prepared in the national spatial data infrastructure map, and it is superposed on the pipe network model diagram, and the ground height of the overlapped pipe network nodes is collated with the elevation map to make it an object (S15). ).

FIG. 3 shows a structure of a map network model diagram and map information constructed on the GIS, and is registered as one frame of a computer as a map file written on the GIS. Can be overlaid with information.

In the present embodiment, the elevation map superimposition processing enables the construction of a pipeline network model even when there is no data such as the pipeline length of the water pipeline and the ground height.

(Embodiment 3) In this embodiment, maintenance of the pipe network analysis system can be performed from a distance. Generally, the water network diagram is changed due to the addition of pipelines and renewal work. Therefore, it is necessary to newly verify the pipe network analysis.

When changing the water pipe network diagram, conventionally, the request of the customer is acquired by hearing or the like, and the analysis is performed again. Therefore, a lot of labor and labor costs are required.

In this embodiment, as shown in FIG. 4, general-purpose SCADA (distant monitoring control system) software is linked to the network analysis system, and a GIS map document file is created on the server computer as a data input computer. Transfer the constructed information A to a distant client computer side via a communication network such as the Internet, and use this information B,
Maintenance (verification) of network analysis is executed on the client side.

According to this embodiment, remote maintenance can be performed on the client side, and the number of maintenance work steps can be reduced.

In this maintenance method, the information A and B are composed of an elevation map, a spatial data infrastructure diagram, a pipe network diagram, etc., as in FIG. Therefore, since the respective attribute data is incorporated, the memory becomes large and the transfer speed becomes slow when the data is executed via the Web function of the Internet.

Therefore, the same spatial data base and elevation map are stored on both the server side and the client side, and only the network diagram is exchanged between computers in the HTML file format to shorten the information transfer time and to distant places. Speed up maintenance.

[0041]

As described above, according to the present invention, since the spatial data infrastructure diagram issued by the Geospatial Information Authority of Japan and the water pipeline diagram owned by the waterworks are processed as information by the drawing information system, The work of inputting network model data can be reduced.

Further, by transferring the pipe network model data from the server computer on the pipe network analysis system side to the computer on the client side via the communication network, remote maintenance for data change is facilitated.

[Brief description of drawings]

FIG. 1 is a data input procedure of a pipe network model showing a first embodiment of the present invention.

FIG. 2 is a data input procedure of a pipe network model showing the second embodiment of the present invention.

FIG. 3 is a relationship diagram between a map model diagram and map information according to the second embodiment.

FIG. 4 is an explanatory diagram of remote maintenance of a pipe network analysis system showing a third embodiment of the present invention.

FIG. 5 shows an example of a pipe network analysis system.

FIG. 6 shows an example of a conventional pipe network model data input procedure.

[Explanation of symbols]

1 ... tube network model 2 ... water distribution network 3 ... pipe network analysis apparatus 4 ... Database N ₁ to N _P ... node B ₁ .about.B _Q ... conduit

Continued front page    (72) Inventor Shoichi Samejima             2-17 Osaki, Shinagawa-ku, Tokyo Stock market             Shameidensha F-term (reference) 5B046 AA01 CA06 DA01 DA06 EA03

Claims (4)

[Claims] 1. A data input method for a pipe network model in a system for conducting a pipe network analysis based on a pipe network model in which a water supply pipe network is modeled by nodes and pipelines, which is a data input computer equipped with GIS software. Displays a spatial data infrastructure diagram issued by the Geospatial Information Authority of Japan on the screen, refers to the water supply pipeline diagram owned by the water supply company, etc., and inputs the coordinates of the nodes and pipelines on the spatial data infrastructure diagram. Converts the pipelines and nodes input on the spatial data infrastructure diagram into vector data using coordinate position data, obtains each node information by referring to the water supply pipeline diagram,
By using the processing function of the software, the symbol image of the node is automatically input at the coordinate position, the pipeline connecting the nodes is automatically input as a line image, and the object data of the pipeline / node is automatically generated. A data input method for a pipe network model characterized by inputting numerical data indicating each node attribute and pipeline attribute using a computer keyboard. 2. The elevation map prepared in the national land spatial data infrastructure map is superposed on the pipe network model diagram, and the ground height of the superposed pipe network nodes is collated with the elevation map to form an object. The pipe network model data input method according to claim 1. 3. A client computer capable of communicating information with the data input computer by using a software of a remote monitoring control system and a communication network is provided, and the client computer is provided with the data input computer when the water supply network diagram is changed. 3. The pipe network model data input method according to claim 1, wherein the information of the constructed pipe network model is transferred to a client computer, and the data of the pipe network model is changed and input by the client computer. 4. The both computers are equipped with the same spatial data infrastructure map and elevation map, and only the network diagram is exchanged between the two computers when changing the water network diagram. The data input method of the pipe network model according to claim 4.