JPH081649B2 - Display method of hydraulic analysis results in water supply information management system - Google Patents

Description

The present invention relates to a hydraulic analysis result display method in a water supply information management system.

(Prior art) A water supply information management system is a large number of drawings such as an overall view of a water supply facility, a water distribution pipe diagram, a water supply pipe diagram, etc., and a water supply ledger, a gate valve ledger, etc. Based on a large number of materials of the above, these drawings and facility information will be managed, and hydraulic analysis will be performed.

The number of drawings and ledgers will be huge in big cities,
The management was difficult.

Therefore, a map information system (mapping system) in which such a huge amount of drawings and materials are processed by a computer for efficient management has already been proposed (for example, JP-A-58-146977, JP-A-62-162170, JP-A-63-34667).

These conventional map information systems divide the water supply facility data into graphic data and its attribute data (data consisting of letters, numbers, and symbols) and make them hierarchical, and associate these data as an integrated database. By storing them, it was intended to efficiently manage the drawings and facility information.

On the other hand, regarding the hydraulic analysis of the pipeline network of water supply, instead of analyzing it using the pipeline network in the above-mentioned water facility data, enter the network diagram data for hydraulic analysis separately and Based on this, hydraulic analysis was carried out (for example, Japanese Patent Laid-Open No. 62-
67667 gazette).

That is, in the hydraulic analysis, a schematic diagram for hydraulic analysis was created and the analysis result was displayed on the schematic diagram.

(Problems to be Solved by the Invention) In the conventional water supply information management system, in order to perform a hydraulic analysis, a pipeline for hydraulic analysis is input, a schematic diagram is created, analyzed, and an analysis result. Since it was displayed on the schematic diagram, there was a deviation from the actual pipeline on the map, and it was difficult to intuitively understand what the area was like.

Therefore, the present invention makes it possible to display the hydraulic analysis result on the facility data by centrally managing the facility data and the hydraulic data, and displays the hydraulic analysis result in the water supply information system that facilitates the evaluation of the result. The purpose is to provide a method.

(Means for Solving the Problems) In order to achieve the above object, the present invention has taken the following means. That is, a feature of the present invention is that a water supply information management system in which water supply facility data including graphic data such as maps and pipelines and its attribute data is stored in a database, and the data in the database is managed and processed by a computer When processing the hydraulic data using the, by calling the facility data from the database and instructing the required pipeline from the facility data, the hydraulic data including the designated pipeline can be obtained. Generate, associate the hydraulic data with the facility data, perform a hydraulic analysis, in the method of displaying the result, the generation of the hydraulic data, the overall map hydraulic data for the main of the entire city, Is to generate the block diagram hydraulic data for the main and branch pipes in the block diagram, and the hydraulic data and the facility data are related to each other via connection information. The hydraulic analysis is performed using the general map hydraulic data and the block diagram hydraulic data of the analysis target area, and the result of the hydraulic analysis is recorded on the facility data via the connection information. There is a point to display.

(Operation) According to the present invention, the generation of hydraulic data is to generate general map hydraulic data for the main of the entire city and block schematic hydraulic data for the main and branch pipes in the block map. Since the hydraulic analysis is performed using the general map hydraulic data and the section map hydraulic data of the analysis target area, the hydraulic analysis can be quickly performed even with a small capacity computer. Since the facility data and the hydraulic data are related to each other via the connection information, the result of the hydraulic analysis analyzed using the hydraulic data is in which part of the facility data. Can be determined.

Therefore, the result of hydraulic analysis can be displayed on the facility data, which facilitates the evaluation of the result.

(Example) Hereinafter, the Example of this invention is described based on drawing.

FIG. 1 shows a hardware configuration for operating the system of the present invention, which is a configuration when a large general-purpose computer or a medium-sized computer is used as the host computer 1. The host computer 1 is composed of a central processing unit 2, a storage device 3, an interface 4, etc., and a master database 5 is externally connected.
The master database 5 contains a map database 6 made up of graphic data and its attribute database 7. This attribute data is composed of letters, numbers and symbols.

Reference numeral 8 denotes an input device, which is connected to a plurality of units and is composed of a workstation 9 and a digitizer 10. The input device 8 performs drawing input, drawing correction, correction of attribute data, and the like.

Reference numeral 11 is a magnetic tape or a flexible disk for initial input of attribute data.

12 is an electrostatic plotter, which outputs a drawing, and 13 is a kanji printer, which outputs a form.

Reference numeral 14 denotes an optical filing device, which inputs details of map data from the optical disk 15.

Reference numeral 16 denotes another terminal device, which has a workstation 17 and a database 18, and information processing is possible only by this terminal device 16.

Incidentally, the one shown in FIG.
Is a hardware configuration when using a digitizer 20, XY
The plotter 21, the optical disk device 22, the electrostatic plotter 23, the printer 24, the mouse 25, etc. are equipped.

Next, a water supply information management system of the present invention using the above hardware configuration will be described.

First of all, Fig. 3 shows a conventionally managed distribution pipe diagram, in which houses, roads, distribution pipes, water pipes, valves, plugs, etc. were entered. In this embodiment, such map information is managed by a computer.

That is, as shown in FIG. 4, the graphic data of the map information is hierarchized into a road layer 26, a building layer 27, a water pipe layer 28, a water pipe layer 29, a valve / plug layer 30, a fire hydrant layer 31, etc. These graphic data 32 are stored in the map database 6. The attribute data 33 associated with the graphic data is also the attribute database 7
Is stored in. The layers of the graphic data 32 and the attribute data 33 are stored in the master database 5 in association with each other. Below, these graphic data 32
And the attribute data 33 are collectively referred to as water supply facility data.

Then, in the present embodiment, as shown in FIG. 5, necessary layers in the map database 6 are searched and synthesized to create and output a drawing suitable for the purpose, and the attribute data 33 can be additionally output. Is configured.

Therefore, in this embodiment, drawing management for storing, modifying, adding, editing, searching, etc. of drawings, and facility information management for managing distribution pipes, water pipes, valve plugs, etc. and managing user's address and name, etc. Can be done extremely efficiently and quickly.

In this embodiment, in addition to the drawing management and facility information management, hydraulic analysis is also performed based on the data in the master database 5. However, instead of directly using the water supply facility data for hydraulic analysis, hydraulic data is separately generated from the facility data, and the hydraulic analysis is performed using the hydraulic data.

Next, a method of generating hydraulic data from the water supply facility data will be described.

First, as shown in FIG. 6, on the screen of the workstation 17, the water supply and distribution door number diagram in which the water distribution pipe diagram and the water supply pipe diagram are combined is shown.
Is displayed. This water supply / drainage door number diagram 34 is generated by searching and synthesizing the water facility data in the master database 5.

Next, the pipes a, b, and a on the water supply and distribution door number diagram 34 are designated by a light pen or the like of the input device. By this instruction, as shown in FIG. 7, the designated conduits a, b, c of the layer A are copied to the layer B as conduits a ', b', c '. This layer B becomes the graphic data 35 of hydraulic data.

The layer A of facility data and the layer B of hydraulic data are associated with each other.

Next, as shown in FIG. 8, one compressed attribute data 36 is given to the pipelines a ', b', and c '. That is, hydraulic analysis data such as pipe diameter and length are input in association with the graphic data 35.

FIG. 9 shows the graphic data 32 of facility data and its attribute data 33, and the graphic data 35 of hydraulic data and its attribute data 36.
Represents an image associated with each other via the connection information 37.

The hydraulic data generated as described above is stored in the master database 5.

FIG. 10 is a more concrete image of the data in the master database 5. The hydraulic data is
The data is stored in the form of overall map hydraulic data 38 and its attribute data 39, and section map hydraulic data 40 and its attribute data 41.
The overall map hydraulic data 38 is data relating to the main of the entire city, and the block diagram hydraulic data 40 is data relating to mains and branch pipes within the block.

These general map hydraulic data 38 and plot hydraulic data 40 are
It is generated from the water supply facility data by the above-mentioned method, and the hydraulic data and the facility data are stored in the master database 5 in association with each other via the connection information 37.

Next, the hydraulic analysis is performed using the hydraulic data. First, the hydraulic analysis itself will be described.

Water is sent from the water source to the demand end through the distribution pipe. At that time, there is a pressure loss due to the extension (distance) of the water distribution pipe, the bore, and the friction of the pipe surface. If proper distribution pipes are not laid, water cannot be delivered to the demand end.
Therefore, maintaining an appropriate pressure at the demand end is an important task of the water department.

Hydraulic analysis is based on the height of the water source (pumping capacity of the pump), the characteristics of the water distribution pipe (caliber, extension, friction coefficient), the ground height at the demand end (node), and the amount of water taken out, and the flow pattern and demand in the water distribution network. The water pressure at the end is calculated.

More specifically, the water pressure at each node 42 in the pipeline network as shown in FIG. 11 is calculated. The following basic equations are used for this hydraulic analysis.

[Loss head type]

The head loss equation is an equation representing the head loss in each pipeline, and is represented by the following equation.

H _i = r _i · Q _i ^u (1) r _i = k · CH _i ⁿ · D _i ^m .L _i H _i ; head loss CH _i ; velocity coefficient L _i ; pipe length Q _i ; flow rate D _i ; Diameter k, m, n, u; Constant [Nodal equation] This equation represents that the sum of the inflow amount Q and the outflow amount q at each node is equal. Indicated by.

Σ ± Q _i = q (2) Specifically, in the case shown in FIG. 12, it is expressed as Q ₁ + Q ₂ −Q ₃ −Q ₄ = q ₁ .

[Closed pipe line equation]

This equation represents that the sum of head loss in each closed pipe becomes 0, and is represented by the following equation.

Σ ± H _i = 0 (3) Specifically, in the closed pipeline shown in FIG. 13, H ₁ + H ₂ −H ₃ −H ₄ = 0.

In the hydraulic analysis, the equation (1) is substituted into the equation (3) to derive Σ (± r _i .Q _i ^u ) = 0 (4), and then the equations (2) and (4) ) As simultaneous equations
This is performed by obtaining Q _i , and further substituting Q _i into the equation (1) to obtain H _{i of} each pipeline.

By the way, in the hydraulic analysis, the outflow amount q at each node 42 must be known.
As shown in Fig. 14, the area shared by a certain node 42 is defined,
The pipe take-out amount C (the demand amount of the consumer) is collected at the node 42, and is processed as the outflow amount q of each node as shown in FIG.

Instead of collecting all the outflow amounts at the nodes 42, it is also possible to perform hydraulic analysis using the take-out amount C from the pipeline and the nodal amount q as shown in FIG.

By the way, if the hydraulic analysis is to be carried out in all regions including the main and branch pipes, the calculation becomes enormous, and it cannot be calculated even by using a large computer.

Therefore, in the present embodiment, first, the hydraulic analysis is performed only for the mains in all regions, and then the mains in the target region,
The branch pipe is analyzed hydraulically. By adopting such a method, hydraulic analysis can be quickly performed even with a small capacity computer.

That is, a hydraulic analysis of only the main pipe is performed by using the general map hydraulic data 38, and the result is already stored in the attribute data 39.

Then, as shown in Fig. 17, a block diagram of the area to be examined
By calling 43 from the block diagram hydraulic data 40 and designating the target area in the block diagram, the hydraulic data of the main and branch pipes of the target region shown in FIG. 18 is called for analysis.

Then, the extracted section map hydraulic data 40, 41 and the general map hydraulic data 38, 39 are multiplied to perform the hydraulic analysis of the target area.

At the time of this hydraulic analysis, the outflow amount q of the main node in the overall map hydraulic data 38, 39 is distributed to the node S with the branch pipe for hydraulic analysis.

 FIG. 19 illustrates the method of this hydraulic analysis.

In this example, since the facility data and the hydraulic data are associated and centrally managed, as shown in FIG. 20, the amount of water used for the personal information in the facility data is calculated based on the leakage of the hydraulic analysis data. It can be used as a quantity.

The results of hydraulic analysis obtained by the above procedure are output in various formats. In this embodiment, the results are displayed on the facility data.

That is, the water pressure, flow rate, etc. of each pipe and node are displayed on the water supply and distribution door number diagram 34 shown in FIG.

In this way, the hydraulic data can be displayed on the facility data because each data is related through the connection information 37 (see FIG. 21).

Therefore, as a result of the hydraulic analysis, an area where water pressure may be cut off due to insufficient water pressure can be highlighted and displayed as shown in FIG.

The present invention is not limited to the above embodiment.

(Effect of the Invention) According to the present invention, the generation of hydraulic data is to generate the general map hydraulic data for the main of the entire city and the block hydraulic data for the main and the branch in the block. Since the hydraulic analysis is performed using the general map hydraulic data and the section map hydraulic data of the analysis target area, the hydraulic analysis can be quickly performed even with a small-capacity computer. Since the result of hydraulic analysis is displayed on the facility data, the evaluation and judgment can be made easier and the water supply information management can be performed with higher accuracy than the conventional schematic diagram display. It is a thing.

[Brief description of drawings]

FIG. 1 is a hardware configuration diagram of the present invention system using a large computer, FIG. 2 is a hardware configuration diagram of the present invention using a personal computer, FIG. 3 is a diagram showing a conventional water distribution pipe diagram, and FIG. 4 is FIG. 5 is an image diagram showing layering of facility data in the system of the present invention, FIG. 5 is an image diagram showing processing of layered data, FIG. 6 is a diagram showing a water supply and distribution door number diagram displayed on the screen, and FIG. Image diagram for generating hydraulic data, Fig. 8 is an image diagram showing the relationship between graphic data and attribute data of hydraulic data, Fig. 9 is an image diagram showing the relationship between facility data and hydraulic data, and Fig. 10 is a master database. Image diagram showing the data structure, Fig. 11 is a diagram for explaining hydraulic analysis, Fig. 12 is a diagram for explaining nodal equations,
FIG. 13 is an explanatory diagram of a closed pipe line equation, FIGS. 14 and 15 are explanatory diagrams of nodal outflow amount calculation, and FIG. 16 is an explanatory diagram of pipe outlet,
Figure 17 is a block diagram showing the block diagram hydraulic data,
Fig. 18 is a diagram showing the block diagram hydraulic data after designation of the area, Fig. 19 is an image diagram of hydraulic analysis, Fig. 20 is an explanatory diagram when facility data is used as hydraulic data, and Fig. 21 is facility data. And Fig. 22 is an explanatory diagram showing the relationship between the hydraulic data and the hydraulic analysis results displayed on the facility data. 5 …… database, 6,7 …… facility data, 35,36 …… hydraulic data, 37 …… consolidated information.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-63-34667 (JP, A) JP-A-63-284682 (JP, A) JP-A-62-67667 (JP, A) Toshiba Review, Vol. 43, No. 5, 1988, p. 393-396 The 43rd Annual Conference of JSCE, October 1988, p. 26-27 (PS ▲ VI -13)

Claims (1)

[Claims] 1. A database stores water facility data consisting of graphic data such as maps and pipelines and their attribute data,
When processing hydraulic data using a water supply information management system that manages and processes the data in the database with a computer, the facility data is called from the database and a required pipeline is specified from the facility data. By generating hydraulic data including a designated pipeline, associating the hydraulic data with the facility data, performing a hydraulic analysis, and displaying the result, generating the hydraulic data. Is to generate overall map hydraulic data for the main of the entire city and block hydraulic data for the main and branch pipes in the block map, and the hydraulic data and the facility data provide connection information. The hydraulic analysis is carried out using the general map hydraulic data and the section map hydraulic data of the analysis target area, and the hydraulic analysis results are A method for displaying a hydraulic analysis result in a water supply information management system, which is displayed on the facility data via the connection information.