JP2002007484A - Fluid feeding pipe network control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid feeding pipe network control system which simplifies the preparation of pipe network model layout and analysis data supply to a pipe network element. SOLUTION: The fluid feeding pipe network control system consists of a pipe network data storing device 10 storing equipment drawing data for a fluid feeding pipe network and the attribute data of the pipe network element constituting this fluid feeding pipe network and a pipe network analyzer 20 for the hydraulic analysis of the pipe network model. The pipe network analyzer is provided with a pipe network model layout preparation part 21 for preparing the layout of the pipe network elements or constructing the pipe network model on the basis of the equipment drawing data read from the pipe network data storing device and a fluid-analyzing data imparting part 22 for imparting fluid analysis data with respect to the respective pipe network elements which is prepared by conversion-processing of the attribute data stored in the pipe network data storing device to the pipe network element.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe network data storage device for storing facility drawing data for a fluid supply pipe network and attribute data of pipe network elements constituting the fluid supply pipe network. A preprocessor for creating a pipe network model based on the facility drawing data and the attribute data, a solver for performing fluid analysis on the pipe network model, and output data for displaying an analysis result by the solver; And a pipe network analysis device having a post-processor unit that performs the processing.

[0002]

2. Description of the Related Art Conventionally, when performing a pipe network analysis with this type of fluid supply pipe network management system, a pipe network model is constructed using facility drawing data for a fluid supply pipe network in a specific area, and then analyzed. Water sources, pipelines,
It is necessary to give attribute data for specifying the specifications, that is, information for fluid analysis, to each of the pipe network elements such as valves, plugs, pumps, pipes and the like.

[0003] A pipe network data storage device that stores facility drawing data as a pipe network facility diagram is provided with attribute data in a state of being linked to each pipe network element in the pipe network facility diagram. For example, since a user interface is constructed such that the attribute information is displayed as a pop-up item by clicking a pipe network element with a mouse, the attribute information of a specific pipe network element can be easily known. The attribute data here is, for example, data necessary for managing pipe network elements such as extension, pipe type, pipe diameter, buried ground height, etc. in the case of a pipe line. Therefore,
By inputting the attribute data obtained by such a user interface as analysis data to each pipe network element in the pipe network model being analyzed, the fluid analysis of this pipe network model becomes possible. Become.

In order to facilitate the creation of such a pipe network model, a file structure is adopted in which all the attribute data including the data for analysis necessary for fluid analysis are integrated with the above-mentioned facility drawing data. There has also been proposed a system in which a so-called pipe network facility diagram itself can be used as a pipe network model. In this case, it is not necessary to create a new pipe network model when performing fluid analysis of existing pipe network facilities, but when creating a pipe network model that takes into account modifications to existing pipe network facilities, If the facility map itself is to be corrected, and if the pipe network facility map is not restored to the original shape after the fluid analysis, a serious problem occurs in that the existing pipe network facility and the pipe network facility map do not match.

[0005]

SUMMARY OF THE INVENTION In view of the above circumstances, it is an object of the present invention to provide a fluid supply system in which the creation of a pipe network model layout and the provision of analysis data to the pipe network elements for constructing the pipe network model are simplified. To provide a pipe network management system.

[0006]

In order to solve the above-mentioned problems, a fluid supply pipe network management system according to the present invention comprises facility drawing data for a fluid supply pipe network and a pipe network element for constructing the fluid supply pipe network. A pipe network data storage device that stores attribute data, a preprocessor section that creates a pipe network model based on the facility drawing data and the attribute data, and a solver section that performs fluid analysis on the pipe network model. And a post-processor for generating output data for displaying an analysis result by the solver unit. The pre-processor unit stores the pipe network data for constructing the pipe network model. A pipe network model layout creating section for creating a layout of pipe network elements based on facility drawing data read from the apparatus; A fluid analysis data providing unit for converting the attribute data stored in the storage device to generate fluid analysis data for each of the pipe network elements and for applying the fluid analysis data to the corresponding pipe network element. Have.

[0007] In this configuration, the layout of pipe network elements such as water sources, valves, and pipes that constitute the pipe network model is based on drawing data obtained by copying facility drawing data stored in the pipe network data storage device. Based on the attribute data stored in the pipe network data storage device, only the types required for fluid analysis are converted into the appropriate data format for the fluid analysis data for each pipe network element created and laid out based on It is created by performing a conversion process, and is given to a predetermined coefficient of an equation derived from the pipe network model. Therefore, the layout creation of each pipe network element as a framework of the pipe network model is efficiently performed by diverting facility drawings for managing the fluid supply facility, and the fluid analysis for each pipe network element of the pipe network model is performed. The application data is efficiently provided by converting only the data necessary for the fluid analysis of the attribute data into a desired data format.

[0008] In one preferred embodiment of the present invention, the fluid analysis data providing unit includes a pipe which is required in accordance with a change, addition or deletion of an arbitrary pipe network element by the pipe network model layout creating unit. The fluid analysis data for the net element is automatically changed. When using this fluid supply pipe network management system for the purpose of simulation to check the state of fluid supply due to new facility construction, pipe network analysis is not performed with the layout of pipe network elements according to facility drawing data. ,
A pipe network analysis is performed by deleting or adding specific pipe network elements, or changing attribute data such as pipe bore size.A layout created based on the copied facility drawing data is used. It is convenient to be able to change it freely. In addition, since the fluid analysis data is automatically changed in accordance with the change of the pipe network element, the analysis work using the pipe network model according to the new facility construction plan is efficiently performed.

In the pipe network analysis in accordance with the new facility construction plan as described above, it is important to select a pipe network model that provides an optimum result, assuming a plurality of pipe network models. In order to efficiently evaluate the analysis result by a plurality of pipe network models, in a preferred embodiment of the present invention,
The preprocessor can create a plurality of pipe network models, and the preprocessor can display respective analysis results for the plurality of pipe network models in a comparable manner.

Some pipe network models created once become unnecessary after one analysis work, but some are used many times by changing some fluid analysis data. In consideration of the latter case, in the present invention, the preprocessor unit includes a pipe network model storage unit that stores the facility network data corresponding to the facility network data in a linked state, and stores the facility network data in a facility map of a specific area. Based on this, a pipe network model created in advance in the area can be read directly from the pipe network model storage unit. Furthermore, by adopting a configuration in which the layout of the pipe network elements of the corresponding pipe network model and the attribute data thereof are updated in accordance with the update of the facility drawing data, a pipe network model corresponding to the actual facility drawing is always prepared. That means
The analysis work of the fluid supply pipe network in a specific area is performed efficiently. Other features and advantages according to the present invention will become apparent from the following description of embodiments with reference to the drawings.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a fluid supply pipe network management system according to the present invention applied to a water pipe network system will be described below. As shown in FIG. 1, the pipe network management system includes a drawing database 11 and an attribute database 1.
2, a pipe network data storage device 10 comprising a management unit 13 for managing these databases, a preprocessor unit 20A for creating a pipe network model to be analyzed, and a solver unit 20B for executing hydraulic analysis in the pipe network model. And a post-processor unit 20C for generating output data for displaying or printing the analysis result by the solver unit 20B with good visibility. These main components are an I / O interface unit. 50, a keyboard 51, a mouse 52, and a monitor 5
3. It is connected to input / output devices such as a printer 54 and data storage means 55 such as a hard disk.

The drawing database 11 is based on a water supply and distribution pipe door number drawing, and stores therein facility drawing data in which a water supply pipe, a water distribution pipe, valve plugs and the like are written in a hierarchical structure with layers so as to be searchable and extractable. . The attribute database 12 includes pipe ID, completion drawing number, laying year, pipe type, diameter, length, amount of water taken out, flow velocity coefficient, and the like as water distribution pipe attribute data, faucet ID as valve plug attribute data, installation year 2, the rotation direction, the flow rate, the reduced pressure value, the ground height, and the like are stored in a form linked to the corresponding coordinate positions of the facility drawing data stored in the drawing database 11, as schematically shown in FIG. Therefore, by clicking the appropriate point of the facility drawing read from the drawing database 11 and displayed on the monitor 54 with the mouse 52, the attribute data on the pipe network element at the clicked point is read from the attribute database 12 via the management unit 30. Is displayed on the monitor 54. At this time, it is also possible to correct the displayed facility drawing and attribute data, and the facility drawing data and the attribute data are stored in the respective databases in the corrected form.

The preprocessor 20A includes a pipe network model to be hydraulically analyzed by the solver 20B.
A pipe network model layout creating unit 21 for handling facility drawing data in the drawing database 11;
And a fluid analysis data assigning unit 22 for converting the attribute data of the above to fluid analysis data and assigning the data to a corresponding pipe network element of the pipe network model.

When creating a pipe network model of an area to be analyzed, first, the pipe network model layout creating unit 21 copies facility drawing data of the area from the drawing database 11 and takes it in. At this time, map data that is not directly necessary for the pipe network model may not be loaded, and only the pipe network elements for constructing the pipe network model may be loaded. 53 may be displayed.

Next, the fluid analysis data generation unit 22
Using the link relationship between the facility drawing data and the attribute data described above, only the data necessary for hydraulic analysis in the attribute data of each pipe network element constructing the pipe network model, for example, the length and diameter of the distribution pipe In the case of a valve plug, the flow rate, decompression value, ground height, etc. are taken from the attribute database 12 and made into fluid analysis data, and linked to the corresponding pipe network element of the pipe network model.

A solver unit 20B receiving the pipe network model with attribute data constructed by the preprocessor unit 20A
Constructs a contact equation from the pipe network model, and solves the nodal equation based on pipe characteristics using the Hesen-Williams empirical formula for the well-known pipe network model to be analyzed. . The derived result data is flow velocity, flow rate data, etc. for each pipe network element, and heads, etc. for the nodes, so that it is possible to evaluate whether the amount of water supplied from the water source is sufficiently supplied to the terminal side. It becomes possible.

The post-processor unit 20C processes the result data calculated by the solver unit 20B, and monitors a pipe line having a large change in flow velocity or a pipe having a changed flow direction, such as water volume and water pressure, in the pipe network model. , And output data such as print data for hard copy by the printer 55.

In the fluid analysis work, it is not rare that hydraulic analysis of the constructed pipe network model is performed while a part of the constructed pipe network model is changed. In order to carry out such operations smoothly, the pipe network model layout unit 21 moves or adds some pipe network elements to a pipe network model created based on facility drawing data, And can be deleted. In the case of relocation of pipe network elements,
The attribute data is also copied, but the connected nodes are changed, so that the coordinate values and the flow rates are automatically rewritten. If a virtual pipe network element that is not present in the facility drawing data is added, the attribute data linked to the pipe network element is not stored in the attribute database 12, so it is necessary to add it. If a pipe type or the like is specified in advance by a menu command or the like, the attribute data is automatically added to the extent possible.

As a measure for the attribute data that cannot be automatically given, the fluid analysis data generator 22 displays a pop-up menu on the monitor 53 and gives it for the hydraulic analysis of the added pipe network element. The user is prompted to input required attribute data through the keyboard 51 or the like.
When necessary attribute data is input, the fluid analysis data generation unit 22 adds the attribute data to the corresponding pipe network element. Since the constructed pipe network model can be stored in the external recording medium 55, it is possible to prepare a plurality of pipe network models, sequentially perform hydraulic analysis, and simultaneously display the results on a monitor. It is convenient to compare different pipe network plans. Also, when displaying a pipe network model, pipe network elements that do not exist in the facility drawing data but were added when the pipe network model was created or that were present in the facility drawing data but were deleted when the pipe network model was created. It is convenient to apply and display, for example, dotted lines or specific colors in a drawing method that can be distinguished from other pipe network elements.

Next, a flow of a work of constructing a pipe network model using the above-mentioned fluid supply (water supply) pipe network management system and performing hydraulic analysis thereof will be described with reference to FIG. In a typical work of constructing a pipe network model, first, facility drawing data of a region to be analyzed for a pipe network is read from the drawing database 11 and displayed on the monitor 53 (# 1). When the operator confirms that the facility drawing is in a desired area, the facility drawing data is copied, and the basic layout of a plurality of pipe network elements for constructing a pipe network model corresponding to the facility drawing data is displayed on the monitor 53. (# 2).
At the same time, the fluid analysis data generation unit 22 extracts only the data necessary for hydraulic analysis from the attribute database 12 among the attribute data linked using the specific coordinate position of the facility drawing data as an anchor, and the solver unit 20 To the pipe network element in the format required by the department (#
3). Now that the creation of the pipe network model for the current water pipe network has been completed, it is sent to the solver unit 20B to perform hydraulic analysis, and the hard disk 55 is sent together with the analysis result.
To be stored.

Next, the operator changes the layout of the pipe network model for the current water pipe network based on the pipe network facility change plan. The main work of the change is to arrange a new water pipe between nodes and to relocate or remove a specific water pipe.However, it is also possible to change only the attribute data of a specific pipe network element. It is possible. Pipe network elements that have been additionally laid out are indicated by bold lines, and when it is necessary to add new attribute data to them, the necessary items in the pop-up menu displayed by clicking the corresponding pipe network element The operator operates the keyboard 51 and the mouse 52 to input appropriate values. The connection ID can be automatically assigned based on the connection ID of the connection destination (# 5).

The completed pipe network model is stored in a solver section 20B.
The result is displayed on the monitor 53 by the post processor 20C in a form that is easy for the operator to grasp. For example, when checking the flow of water in the pipe network, the direction of the water flow in each water distribution pipe is displayed in the form of an arrow (# 6). If a threshold value is set for the flow velocity, it is also possible to change the color of the pipe network element according to the flow velocity and display it.

In order to simplify the comparison of the hydraulic state between the current water pipe network and the water pipe network at the planning stage, the monitor screen is divided as shown in FIG. The hydraulic results of the pipeline model for the water pipeline in the planning stage can be displayed on the other hand. Furthermore, by comparing the analysis results of the two pipe network models and displaying pipes with large changes in flow velocity or pipes with changed flow direction in a different color, for example, red, etc. It will be easier.

In the above example, a pipe network model for the current water pipe network and a pipe network model for the water pipe network at the planning stage were separately prepared and hydraulically analyzed separately. The model may be created at the same time as the hydraulic analysis, and the two hydraulic analysis results may be displayed directly on the monitor screen.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a fluid supply pipe network management system according to the present invention.

FIG. 2 is a schematic diagram illustrating a link structure between drawing data and attribute data.

FIG. 3 is a monitor screen diagram for explaining the creation of a pipe network model and the display of hydraulic analysis results.

FIG. 4 is a monitor screen displaying hydraulic analysis results of the actual pipe network and the planned pipe network.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Pipe network data storage apparatus 11 Drawing database 12 Attribute database 20 Pipe network analysis apparatus 20A Preprocessor section 20B Solver section 20C Postprocessor section 21 Pipe network model layout creation section 22 Fluid analysis data giving section 30 Management section

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Claims (4)

[Claims] 1. A pipe network data storage device for storing facility drawing data for a fluid supply pipe network and attribute data of a pipe network element constructing the fluid supply pipe network, and the facility drawing data and attribute data. A preprocessor unit that creates a pipe network model based on the above, a solver unit that performs fluid analysis on the pipe network model, and a post processor unit that generates output data for displaying an analysis result by the solver unit. In the fluid supply pipe network management system comprising a pipe network analysis device provided, the pre-processor unit is a pipe network element based on facility drawing data read from the pipe network data storage device to construct the pipe network model. A pipe network model layout creating section for creating a layout of the attribute data stored in the pipe network data storage device; A fluid analysis data assigning unit for creating fluid analysis data for each pipe network element and assigning the fluid analysis data to a corresponding pipe network element. . 2. The fluid analysis data providing section automatically supplies fluid analysis data for a pipe network element required according to a change, addition or deletion of an arbitrary pipe network element by the pipe network model layout creating section. The fluid supply pipe network management system according to claim 1, wherein the system is changed to: 3. The pre-processor unit is capable of creating a plurality of pipe network models, and the pre-processor unit can display respective analysis results for the plurality of pipe network models in a comparable manner. 3. The fluid supply pipe network management system according to 2. 4. A pipe network model storage unit for storing the facility network data corresponding to the pipe network model in a linked state, wherein the pipe network model corresponding to the update of the facility network data is provided. 4. The fluid supply pipe network management system according to claim 1, wherein the layout of the pipe network element and the attribute data thereof are updated.