KR100473112B1 - Decision-making support system for sewer maintenance and control method thereof - Google Patents

Abstract

The present invention provides a graphical user interface for outputting a user's function selection means and a decision support result on a GIS-based graphic screen; A sewage pipe data storage unit for storing sewage pipe information, including sewage pipe network information, old pipe diagnosis evaluation factor information, and sub-weighted information; Judgment maintenance decision to determine the deterioration degree of each target conduit, the priority of replacing the conduits from the data stored in the sewage pipe data storage unit, and output the decision support result for the calculated conduit maintenance to the user through the graphic user interface. A module; It provides a conduit maintenance decision support system for maintenance of the old decommissioned, characterized in that it comprises a conduit maintenance control module for controlling the operation of the graphical user interface, sewage pipe data storage unit and conduit maintenance decision module according to a preset control program do.

Description

DECISION-MAKING SUPPORT SYSTEM FOR SEWER MAINTENANCE AND CONTROL METHOD THEREOF}

The present invention relates to a conduit maintenance decision support system and method, and more particularly, to calculate the deterioration degree of conduit from a predetermined evaluation factor, and to maintain an old conduit for supporting decision making for conduit maintenance according to the calculated deterioration degree. The present invention relates to a conduit maintenance decision support system and a method thereof.

In general, when the sewage pipe that is severely aged and damaged is left as it is, unknown water such as groundwater flows into the sewage treatment plant, and the inflow of the unknown water significantly lowers the dilution and purification function of the sewage treatment plant. In addition, sewage flowing directly from the broken sewer pipes contaminates nearby groundwater and soil, which is a serious cause of environmental pollution.

The maintenance of sewage pipes involves the replacement and repair of facilities for contaminants with problems as described above, and the determination of the timing of replacement and repair in advance for the conduits that are likely to have problems. It is largely composed of replacement, rehabilitation, repair and maintenance activities.

One of the most important factors in the maintenance of such sewage pipes is to grasp the current status of the old pipes and establish a maintenance plan. Accordingly, the pipe age is calculated and calculated through the data construction, history management, and quantification of the factors affecting the old pipes. Sewer pipe management system has been required to systematically maintain and repair the sewage pipe network based on the old age.

In order to solve the problems described above, an object of the present invention is to support decision making for maintenance of old conduits such as maintenance of old conduits, maintenance timing, maintenance costs, etc. in order to maintain and repair a large sewage pipe system systematically and effectively. To provide a conduit maintenance decision support system and method for maintenance of old decommissioning.

In order to achieve the above object, the present invention includes a graphical user interface for outputting a user's function selection means and decision support output through a GIS-based graphic screen; A sewage pipe data storage unit for storing sewage pipe information, including sewage pipe network information, old pipe diagnosis evaluation factor information, and sub-weighted information; Judgment maintenance decision to determine the deterioration degree of each target conduit, the priority of replacing the conduits from the data stored in the sewage pipe data storage unit, and output the decision support result for the calculated conduit maintenance to the user through the graphic user interface. A module; It provides a conduit maintenance decision support system for maintenance of the old decommissioned, characterized in that it comprises a conduit maintenance control module for controlling the operation of the graphical user interface, sewage pipe data storage unit and conduit maintenance decision module according to a preset control program do.

In addition, the present invention transmits the initial screen to the connected user, and transmitting the main screen so that the user can select a menu for each function; Transmitting a menu screen for allowing the user to select an evaluation factor and detailed factors of the evaluation factor; Determining at least one target conduit corresponding to the evaluation factor and the subfactor condition selected from the stored database; Calculating the aging degree of each target pipeline by summing weights of the detailed factors of the target pipelines; Judging the priority of the conduit maintenance according to the calculated degree of aging for each target conduit; The present invention provides a method for supporting conduit maintenance decision making for maintenance of an aging conduit, comprising the step of transmitting a screen indicating the deterioration degree and the conduit maintenance priority for each target conduit calculated in the above process.

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Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a block diagram showing a conduit maintenance decision support system for the maintenance of old conduits according to a preferred embodiment of the present invention.

As shown in FIG. 1, the conduit maintenance decision support system 100 according to an exemplary embodiment of the present invention may include a graphical user interface 110, a sewage pipe data storage unit 120, and a conduit maintenance decision module ( 130 and a conduit maintenance control module 140, and includes an input unit 150 and an output unit 160.

(1) graphical user interface

The graphical user interface 110 is an operating system for outputting a user's function selection means and decision support output through a GIS-based graphical screen.

As a function selection means of the user, various forms such as a pointer, an icon, a menu bar, and the like may be used. The decision support output is output in the form of a preset screen, and various forms such as text, table, and graph can be used.

(2) sewage pipe data storage

The sewage pipe data storage unit 120 is a means for storing sewage pipe information, including sewage pipe network information, old pipe diagnostic evaluation factor information, and weight information for each sub-item, and further includes cost calculation information.

The information stored in the sewage pipe data storage unit 120 includes basic information input at the time of system construction, real-time information collected and updated in real time, and manual information input by an administrator according to information change. A screen embodiment for managing information is as shown in FIGS. 4A and 4B.

The sewage pipe data storage unit 120 includes an evaluation factor database 122, a weight database 124 for each factor, a pipe network database 126, and a cost calculation database 128.

Each database of the sewage pipe data storage unit 120 is preferably implemented by a large database management system (DBMS) such as Oracle or MySQL to store and access a large amount of information such as image information.

The evaluation factor database 122 stores information on the aging officer evaluation factors including preset evaluation factors and detailed factors for each evaluation factor. The evaluation factors of the aged pipe evaluation factor information include burial area, road, buried years, damage, soil condition, degree of internal corrosion, foundation work method, soil condition, diameter, joint method, number of branches, groundwater level, I / You can set the I ratio, pipe flow rate, and more. In addition, as the detail factor for each evaluation factor, a plurality of detail factors corresponding to each evaluation factor are set. For example, detailed factors such as industrial areas, landfills, coastal areas, urban areas, and other areas are set for the 'embedded area', which is an evaluation factor; Set detailed factors for roads, other roads, and non-roadways.

The factor-specific weight database 124 stores weight information for each sub-factor of the aged officer evaluation factor information. For example, among the detailed factors of the evaluation area 'buried area', the industrial area, landfill area, and coastal area can be set to 2 points, urban area to 4 points, and other areas to 6 points. Among the detailed factors of `road`, 2 points for highways and industrial roads, 4 points for main highways, 5 points for other roads, and 6 points for non-roadways may be weighted.

Exemplary tables of the old pipe evaluation factor information, the detailed factor information for each evaluation factor and the weight information for each subfactor are stored in the evaluation factor database 122 and the weight factor database 124 according to the following <Table 1> to <Table 6 As shown in>.

Evaluation factor Detailed Factor Weight by Factor Buried area Industrial area, landfill area, coastal area 2 Urban area 4 Other Area 6 road Highway, industrial road 2 Main highway (4 lanes or more) 4 Other road 5 Off-road 6 Buried years Within 10 years 6 10 to 15 years 4 15 to 20 years 2 More than 20 years 0 Damage Good 6 usually 4 serious 2

Evaluation factor Detailed Factor Weight by Factor Soil conditions Electrical resistivity 700 or less 0 700 to 1,000 One 1,000 to 1,500 2 1,500-2,500 3 More than 2,500 4 pH 4 or less 0 4 to 6 One 6 to 8.5 2 More than 8.5 One Soil type Pebble 2 sand 4 Silt 6 clay 8

Evaluation factor Detailed Factor Weight by Factor Internal corrosion degree (n value) Less than 0.02 0 0.017 3 0.015 7 0.013 10 Foundation hole method conc. Foundation or pile foundation 5 Sandy soil foundation 3 Choose floor 2 Backfill soil conditions Sand 3 Silt / Loam 2 clay One

Evaluation factor Detailed Factor Weight by Factor View 500mm or less 6 500 to 1000 4 1000-1500 2 More than 1500 0 Joint method Good 4 usually 2 Bad 2 Valve, branch, connector Less 4 usually 2 plenty 0 Connector and fittings has exist 0 none 2

Evaluation factor Detailed Factor Weight by Factor I / I ratio Less than 5% 7 below 10 4 30% less than 3 31 to 100% One

(The I / I ratio is calculated as' (converted I / I amount of pipe ÷ total flow rate of pipe) × 100`.)

Evaluation factor Detailed Factor Weight by Factor Tube flow condition Mangwan 0 Low flow rate pipe (0.3m / s or less) 0 Normal flow tube 5

(The pipe flow rate state is derived from the results of inflow analysis for each pipe.)

The pipe network database 126 may include a sewer pipe network, a sewer chart, an urban plan, a storm drainage diagram, a sewer drainage diagram, attribute information, intrusion water / inflow / leakage information, sewage pipe overflow water information, and the like. Stores sewer pipe network information. As the graphic information and the attribute information, data constructed through computerization, such as 'state of construction of digital map of sewage facilities,' may be utilized, and the phase relationship between the figures is included.

The cost calculation database 128 stores cost calculation information for each pipeline including a pipeline replacement cost, a pipeline repair cost, and a pipeline maintenance cost. Such pipeline cost calculation information is stored in consideration of various variables such as region, time of year, facility characteristics, and personnel.

(3) Decision Maintenance Module

The conduit maintenance decision module 130 may determine the aging degree and the priority of replacing the conduit for each target conduit from the data stored in the sewage conduit data storage unit, and display the decision support result for the calculated conduit maintenance. Means of output to the user through.

The conduit maintenance decision module 130 includes a conditional decision module 132 and a conduit decision module 134.

The decision module for each condition 132 outputs a target conduit corresponding to a condition selected by a user through the graphical user interface, determines the deterioration degree for each target conduit, and calculates a conduit maintenance priority and conduit maintenance cost. do.

The pipeline-specific decision module 134 determines the deterioration degree of the specific pipeline selected by the user and calculates the maintenance cost of the pipeline.

(4) conduit maintenance control module

The conduit maintenance control module 140 is a means for controlling the operation and information exchange of the graphical user interface, the sewage conduit data storage unit, and the conduit maintenance decision module according to a preset control program.

(5) input unit

The input unit 150 is an input unit for allowing a user to input data, designate a target pipeline, and select an evaluation factor. The input unit 150 includes ordinary input means such as a keyboard and a mouse.

(6) output

The output unit 160 is an output unit for providing various types of screens to the user or externally for the user to recognize the calculated decision support output. The output unit 160 includes a conventional output means such as a monitor, a printer, a plotter.

2 is a flowchart illustrating a conduit maintenance decision support method for maintenance of an old conduit according to a first embodiment of the present invention.

As shown in FIG. 2, the method for supporting conduit maintenance decision support for maintenance of old-age conduits according to the first preferred embodiment of the present invention includes access / initial screen transmission / main screen transmission process (S100 to S120), menu screen transmission process ( S130), the target pipeline determination process (S140), aging calculation process (S150), priority determination process (S160), including the decision support screen transmission process (S170), and conduit maintenance cost calculation process (S180) and conduit Further provided is a maintenance cost screen transmission process (S190).

(1-1) Connection / Initial Screen Transfer / Main Screen Transfer Process (S100 ~ S120)

The connection / initial screen transmission / main screen transmission process (S100 ˜ S120) is a process of transmitting an initial screen to a connected user and transmitting a main screen so that the user can select a function-specific menu.

(1-2) Menu Screen Transfer Process (S130)

The menu screen transmission process (S130) is a process of transmitting a menu screen through which a user can select an evaluation factor and detailed factors of the evaluation factor.

The menu screen may be implemented as shown in FIG. 5. That is, evaluation factors such as a buried area, a buried road, and the like are listed at the upper right of the screen, and a plurality of detailed factors are output to the right of the selected evaluation factor. The user designates a desired evaluation factor among a plurality of evaluation factors, and then selects detailed factors of the designated evaluation factor. Then, the user selects a comparison condition (and, or) and presses a LIST button or an inquiry button.

(1-3) Target Pipeline Judgment Process (S140)

The target pipeline determination process (S140) is a process of determining one or more target pipelines corresponding to the evaluation factor and the detailed factor condition selected from the stored database.

That is, as shown in FIG. 5, the user selects the buried area, the buried year, the damage status, and the electrical resistance as the evaluation factors, and selected the industrial area, 10 to 15 years, normal and 700 or less as detailed factors for each evaluation factor. In this case, the pipeline corresponding to the selected evaluator and subfactor condition is retrieved from the stored database.

(1-4) Aging degree calculation process (S150)

The aging calculation process (S150) is a process of calculating the aging degree of each target pipeline by summing the weights of the detailed factors of the target pipelines.

That is, the aged calculation step (S150) calculates the aged degree for each target pipeline by summing the weights for each sub-factor of the target pipeline determined in the target pipeline determination process (S140).

(1-5) Priority Determination Process (S160)

The priority determination process (S160) is a process of determining the conduit maintenance priority according to the calculated aging degree for each target pipeline.

That is, the priority determination process (S160) compares the degree of deterioration of each conduit and arranges them according to the height of the deterioration degree, or arranges each conduit immediately in a state of replacing, replacing, requesting, repairing, and maintaining the current state. Classify as

(1-6) Decision support screen transmission process (S170)

The decision support screen transmission process (S170) is a process of transmitting a decision support screen indicating the deterioration degree and detention maintenance priority for each target pipeline calculated in the aging calculation process (S150) and the priority determination process (S160). .

That is, the process of transmitting the decision support screen (S170) is a process of outputting a decision support result including the calculated aging degree for each target conduit and the priority of conduit maintenance in a preset screen form so that the user can recognize the decision support screen.

(1-7) Decommissioning Maintenance Cost Calculation Process (S180)

The conduit maintenance cost calculation process (S180) is a process of calculating the conduit maintenance cost according to the calculated aging degree for each target pipeline.

In other words, the process of calculating the conduit maintenance cost (S180) calculates an estimated cost required according to the conduit maintenance from the calculated cost information for each conduit including the aged information of the target conduit, the conduit replacement cost, the conduit repair cost, and the conduit maintenance cost. It is a process.

(1-8) Conduit Maintenance Cost Screen Transfer Process (S190)

The conduit maintenance cost screen transmission process (S190) is a process of transmitting a screen showing the conduit maintenance cost for each target conduit calculated in the conduit maintenance cost calculation process (S180).

3 is a flowchart illustrating a conduit maintenance decision support method for retirement maintenance according to a second preferred embodiment of the present invention.

As shown in FIG. 3, the method for supporting conduit maintenance decision support for the maintenance of the aging conduit according to the second embodiment of the present invention may include a connection / initial screen transmission / main screen transmission process (S200 to S220) and a sewer pipe network transmission process. (S230), the target pipeline determination process (S240), including the old age calculation process (S250) and the decision support screen transmission process (S260), and the conduit maintenance cost calculation process (S270) and the conduit maintenance cost screen transmission process (S280) ) Is further provided.

(2-1) Connection / Initial Screen Transfer / Main Screen Transfer Process (S200 ~ S220)

The access / initial screen transmission / main screen transmission process (S200 ˜ S220) is a process of transmitting an initial screen to a connected user and transmitting a main screen so that the user can select a function-specific menu.

(2-2) Sewage network screen transmission process (S230)

The sewer pipe network transmission process (S230) is a process of transmitting a sewer pipe network screen so that a user can designate a target pipeline.

The sewage pipe network screen may be implemented as shown in FIG. 6. That is, the sewer pipe network of the area designated by the user is displayed on the center of the screen, and the user can select a pipeline of a specific section by using a pointer or the like.

(2-3) Target pipeline determination process (S240)

The target pipeline determination process (S240) is a process of determining which pipeline is the target pipeline selected by the user.

(2-4) Aging degree calculation process (S250)

The deterioration calculation step (S250) is a process of calculating the deterioration degree of the target pipeline by accessing the weight information for each of the evaluation factors, subfactors, and subfactors of the target pipeline from the stored database.

(2-5) Decision support screen transmission process (S260)

The decision support screen transmission process (S260) is a process of transmitting a decision support screen indicating the aging degree of the target pipeline calculated in the aging calculation process (S250).

(2-6) Conduit maintenance cost calculation process (S270)

The conduit maintenance cost calculation process (S270) is a process of calculating the conduit maintenance cost according to the calculated aging degree of the target pipeline.

That is, the conduit maintenance cost calculation process (S270) calculates an estimated cost required for conduit maintenance from the calculated cost information for each conduit including information on aging degree of the target conduit, pipeline replacement cost, pipeline repair cost, and pipeline maintenance cost. It is a process.

(2-7) Conduit Maintenance Cost Screen Transfer Process (S280)

The conduit maintenance cost screen transmission process (S280) is a process of transmitting a screen showing the conduit maintenance cost of the target conduit calculated in the conduit maintenance cost calculation process (S270).

As described above, the conduit maintenance decision support system and method for the maintenance of the aging conduit according to the embodiment of the present invention can determine the maintenance priority by calculating the aging degree of the conduit constituting the sewer pipe network. The cost and effect of maintenance can be predicted in advance, which enables the systematic sewer pipe management and maintenance activities.

In addition, the conduit maintenance decision support system and method for maintenance of obsolete conduits according to an embodiment of the present invention can calculate a more objective deterioration by quantifying various factors affecting the aging of the pipeline, and accordingly It is effective to obtain conduit maintenance decision data.

1 is a block diagram showing a conduit maintenance decision support system for maintenance of deterioration according to a preferred embodiment of the present invention,

2 is a flow chart showing a conduit maintenance decision support method for maintenance of deterioration according to a first embodiment of the present invention,

3 is a flow chart showing a conduit maintenance decision support method for maintenance of deterioration according to a second embodiment of the present invention,

4 to 6 is a view showing the output screen of the conduit maintenance decision support system for the maintenance of old conduits according to a preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

110: graphical user interface 120: sewage pipe data storage unit

122: evaluation factor database 124: weighting database for each factor

126: pipe network database 128: cost calculation database

130: conduit maintenance decision module 132: conditional decision module

134: decision module by pipeline 140: conduit maintenance control module

Claims (9)

A graphical user interface for outputting a user's function selection means and a decision support result on a graphic screen; A sewage pipe data storage unit for storing various sewage pipe information; A conduit maintenance decision module for outputting a decision support result for conduit maintenance calculated based on the information of the sewage pipe data storage unit to the user through the graphical user interface; In the conduit maintenance decision support system having a conduit maintenance control module for controlling information exchange and operation of each part of the system, to support decision making for conduit maintenance, The sewage pipe data storage unit includes: an evaluation factor database for storing old factor evaluation factor information including a predetermined evaluation factor and detailed factors for each evaluation factor; A weight database for each factor that stores weight information for each sub-factor of the old pipe evaluation factor information; Stores sewer pipe network information consisting of sewer pipe network, sewage chart, city plan, storm drainage chart and sewer drainage chart, attribute information, intrusion / inflow / leakage information and sewer pipe overflow information. A pipe network database; A cost calculation database for storing cost calculation information for each pipeline including pipeline replacement costs, pipeline rehabilitation costs, and pipeline repair costs, wherein the evaluation factors for the aged pipe evaluation factor information include buried areas, roads, years of burial, and whether damage has occurred. At least one of soil condition, degree of internal corrosion, foundation method, soil condition, diameter, joint method, number of branches, groundwater level, I / I ratio, pipe flow rate, The conduit maintenance decision module determines the deterioration priority for each target conduit from the data stored in the sewage conduit data storage unit, and calculates the priority of replacing the conduit, and according to the graphic user interface Output to the user through, but the conduit maintenance decision module outputs the target conduit corresponding to the condition selected by the user through the graphical user interface, and determine the degree of deterioration by the target conduit, A conditional decision module for calculating conduit maintenance costs; And a pipe decision making module for determining a deterioration degree of a specific pipe selected by a user and calculating a conduit maintenance cost of the pipe. delete delete delete delete A graphical user interface for outputting a user's function selection means and a decision support result on a graphic screen; A sewage pipe data storage unit for storing sewage pipe information, including sewage pipe network information, old pipe diagnosis evaluation factor information, and sub-weighted information; A conduit maintenance decision module for outputting a decision support result for decommissioning maintenance based on the information of the sewage conduit data storage unit to the user through the graphic user interface; In the method comprising a conduit maintenance control module for controlling the information exchange and operation of each part of the system; A first step of transmitting a menu screen for selecting an evaluation factor for diagnosing an aging officer and a detailed factor of the evaluation factor to a user connected through the graphic user interface according to the control of the conduit maintenance control module; When the user selects the evaluation factor and the detail factor through the menu screen provided through the graphical user interface, the conduit maintenance decision module determines one or more target pipelines corresponding to the evaluation factor and the subfactor condition selected from the sewage pipe data storage unit. A second process of doing; A third step of calculating the aging degree of each target pipeline by summing weights of the detailed factors of the target pipeline in the conduit maintenance decision module; A fourth process of determining the priority of conduit maintenance in the conduit maintenance decision module according to the aging degree for each target conduit calculated in the third process; A fifth process of transmitting, to the user through the graphical user interface, a decision support screen indicating deterioration degree of each target pipeline and priority of conduit maintenance calculated in the third and fourth processes in the conduit maintenance decision module; A sixth process of calculating a conduit maintenance cost in the conduit maintenance decision module according to the calculated aging degree for each target conduit; And a seventh process of providing the user with the graphical user interface on the screen for displaying the conduit maintenance cost for each target conduit calculated in the sixth process. How to support maintenance decisions. delete delete delete