WO2006004233A2

WO2006004233A2 - Decision-marking support system for sewer maintenance and control method thereof

Info

Publication number: WO2006004233A2
Application number: PCT/KR2004/001645
Authority: WO
Inventors: Gye Woon Choi; Sung Eun Jung; Sang Woo Park
Original assignee: Surotech. Co., Ltd
Priority date: 2004-07-03
Filing date: 2004-07-03
Publication date: 2006-01-12
Also published as: WO2006004233A3

Abstract

The present invention relates to a decision-making support system (100) for a sewer maintenance that includes a graphic user interface (110) that outputs a function selection means of a user and a decision-making support result through a GIS-based graphic scree, a sewage storing unit (120) that stores sewage data including pipe network data (126), aged pipe diagnosis factor data (122) and detailed weight data (124), a sewer maintenance decision-making module (130) that judges sewer-based aged degree and a sewer exchange priority based on the data stored and outputs a decision-making support result (160) to a user through the graphic user interface (110). A sewer maintenance control module (140) controls the graphic user interface (110), the sewage data storing unit (120) and the sewer maintenance decision-making module (130) based on a control program.

Description

Title: DECISION-MAKING SUPPORT SYSTEM FOR

SEWER MAINTENANCE AND CONTROL METHOD

THEREOF

Technical Field

The present invention relates to a decision-making support system for a

sewer maintenance and a control method thereof, and in particular to a

decision-making support system for a sewer maintenance and a control method

thereof capable of computing an aged degree of a sewer based on a preset

evaluation factor, wherein a decision-making for a sewer maintenance is

supported based on a computed aged degree.

Background Art

Generally, when an aged and damaged sewage pipe is left alone, a lot

of polluted water such as underground water is inputted into a sewage disposal

plant, and the input of the polluted water significantly decreases a dilution and

purification function of a sewage disposal plant. In addition, the sewage directly

outputted from the damaged sewage pipe pollutes underground water and soil,

thus becoming an important factor of environment pollution.

In the maintenance of a sewage sewer, an exchange and maintenance

of a facility are performed with respect to a sewer having a problem. The sewer judged to make a problem is previously exchanged and maintained. The above

maintenance of the sewage sewer is classified into an exchange, update,

maintenance and maintenance management.

In the maintenance of a sewage sewer, one of the important factors is

to check status with respect to an aged sewer and to setup a maintenance plan.

Therefore, it is urgently needed to develop a sewage sewer management

system that may be implemented in such a manner that the aged degree of

pipes is computed based on a data accumulation of pipes, history management,

and computation of aging factors, and the sewage pipe network is

systematically maintained based on the computed aged degree.

Disclosure of Invention

Accordingly, it is an object of the present invention to provide a

decision-making support system for a sewer maintenance and a control method

thereof capable of supporting a decision-making for a maintenance of an aged

sewer, a maintenance timing, a maintenance cost in order to systematically

repair and maintain a large size of a sewage pipe network, overcoming the

problems encountered in the conventional art.

To achieve the above objects, there is provided a decision-making

support system for a sewer maintenance, comprising a graphic user interface

that outputs a function selection means of a user and a decision-making support

result through a GIS-based graphic screen; a sewage sewer storing unit that stores a sewage sewer data including a sewage pipe network data, an aged

pipe diagnosis evaluation factor data and a detailed item-based weight data; a

sewer maintenance decision-making module that judges a preset object sewer-

based aged degree and a sewer exchange priority based on the data stored in

the sewage sewer data storing unit and outputs a decision-making support

result for the computed sewer maintenance to a user through the graphic user

interface; and a sewer maintenance control module that controls the operations

of the graphic user interface, the sewage sewer data storing unit and the sewer

maintenance decision-making module based on a preset control program.

To achieve the above objects, there is provided a decision-making

support control method for a sewer maintenance, comprising a step in which an

initial screen is transferred to a user connected, and a main screen is

transferred so that a user can select a function-based menu; a step in which a

menu screen is transferred so that the user can select an evaluation factor and

a detailed factor of the evaluation factor; a step in which one or more than one

object pipe way corresponding to an evaluation factor and a detailed factor

condition selected from the stored database is judged; a step in which the

detailed factor-based weights of the object pipe way are summed, for thereby

computing an aged degree of each object pipe way; a step in which a sewer

maintenance priority is judged based on the computed object pipe way-based

aged degree; and a step in which the screen of the object pipe way-based aged

degree and the sewer maintenance priority computed in the above step is transferred.

To achieve the above objects, there is provided a decision-making

support control method for a sewer maintenance, comprising a step in which an

initial screen is transferred to a user connected, and a main screen is

transferred so that a user selects a function-based menu; a step in which a

sewage pipe network screen is transferred so that a user designates an object

pipe way; a step in which an object pipe way selected by a user is judged; a

step in which an aged degree of the object pipe way is computed by accessing

an evaluation factor, a detailed factor and a detailed factor-based weight data of

the object pipe way from the stored database; and a step in which a screen of

the aged degree of the object pipe way computed in the above step is

transferred.

Brief Description of Drawings

The present invention will become better understood with reference to

the accompanying drawings which are given only by way of illustration and thus

are not limitative of the present invention, wherein;

Figure 1 is a view illustrating the construction of a decision-making

support system for a sewer maintenance according to a preferred embodiment

of the present invention;

Figure 2 is a flow chart of a control method of a decision-making support

system for a sewer maintenance according to a first embodiment of the present invention;

Figure 3 is a flow chart of a control method of a decision-making support

system for a sewer maintenance according to a second embodiment of the

present invention; and

Figures 4 through 7 are views illustrating the output screens of a

decision-making support system for a sewer maintenance according to a

preferred embodiment of the present invention.

Best Mode for Carrying Out the Invention

The preferred embodiments of the present invention will be described

with reference to the accompanying drawings. In the descriptions of the present

invention, if it is judged that the detailed descriptions concerning the prior art or

constriction are deemed to make the gist of the present invention obscure, the

detailed descriptions will be omitted.

Figure 1 is a view illustrating the construction of a decision-making

support system for a sewer maintenance according to a preferred embodiment

of the present invention.

As shown therein, a sewer maintenance decision-making support

system 100 according to a preferred embodiment of the present invention

includes a graphic user interface 110, a sewage sewer data storing unit 120, a

sewer maintenance decision-making module 130, and a sewer maintenance

control module 140. In addition, an input unit 150 and an output unit 160 are further provided.

(1) Graphic User Interface

The graphic user interface 110 is an operation system capable of

outputting a user's function selection and a decision-making support result

through a GIS-based graphic screen.

As a user's function selection unit, a pointer, an icon, menu bar, etc.

may be used. The decision-making support result may be outputted on a preset

screen in a type of a character, table, graph, etc.

(2) Sewage sewer data storing unit

The sewage sewer data storing unit 120 is capable of storing a sewage

sewer data including a sewage pipe network data, an aged pipe diagnosis

evaluation factor data, and a detailed item-based weight data.

The data stored in the sewage sewer data storing unit 120 includes a

basic data inputted when setting up a system, a real time data collected and

updated in real time, and a manual data inputted by an operator based on a

data change.

The sewage sewer data storing unit 120 includes an evaluation factor

database 122, a factor-based weight database 124, a pipe network database

126, and a cost computation database.

Preferably, the sewage sewer data storing unit 120 is implemented based on a large scale database management system (DBMS) such as Oracle,

MySQL so that a large size data such as an image data, etc. is stored and

accessed.

The evaluation factor database 122 stores an aged pipe evaluation

factor data including a preset evaluation factor and each evaluation factor-

based detailed factor. With the evaluation factor of the aged pipe evaluation

factor data, it is possible to set sewer-based burying area, road, years of burial,

soil condition, inner corrosion degree, basic construction method, pipe diameter,

joint method, number of divides, level of underground water, I / I ratio, flow

speed in pipe, etc. In addition, with the evaluation factor-based detailed factors,

it is possible to set a plurality of detailed factors corresponding to each

evaluation factor. For example, detailed factors such as industrial area, buried

area, costal area, city area and other area with respect to the buried area that is

an evaluation factor are set, and it is possible to set a detailed factor such as

highway, industrial road, main trunk line road, other road, unpaved road, etc.

with respect to a road that is an evaluation factor.

The factor-based weight database 124 stores a detailed factor-based

weight data of the aged pipe evaluation factor data.

For example, two points may be set as weight for industrial area, buried

area and costal area among the detailed factors of the burial area that is an

evaluation factor, and four points may be set as weight for city area, and six

points may be set as weight for other area. Two points may be set as weight for highway and industrial road among the detailed factors of road that is an

evaluation factor, and four points may be set as weight for main trunk line road,

and five points may be set as weight for other roads, and six points may be set

as weight for unpaved road.

Tables 1 through 6 show the examples of the tables concerning the

aged pipe evaluation factor data, evaluation factor-based detailed factor data

and detailed factor-based weight data stored in the evaluation factor database

122 and the factor-based weight database 124. Table 1

Table 2

Table 3

Table 4

Table 5

Here. I / 1 ratio is computer based on (conversion I / 1 of pipe / total flow amount of pipe)

Table 6

The slow speed of the pipe is obtained based a result of pipe-based unsteady flow analysis.

The pipe network database 126 stores a sewage sewer pipe network

data including a graphic data such as a sewage pipe network map, sewage

history map, city planning map, rain and drainage area map, sewage and

drainage area map, etc., an attribute data related thereto, an input water/flow-in

water/leakage data, and a sewage sewer over flow water data. As the graphic

data and attribute data, a data collected through a computation work like

sewage facility value map construction status, and it includes an inter

relationship.

The cost computation database stores a pipe way-based cost

computation data such as a pipe way exchange cost, a pipe way repair cost, a

pipe way maintenance cost, etc. The pipe way-based cost computation data is

stored based on various variables such as area, timing, facility characteristic,

number of workers, etc.

(3) Decision-making module for sewer maintenance

The sewer maintenance decision-making module 130 judges a sewer-

based aged degree and a sewer exchange priority from the data stored in the

sewage sewer data storing unit and outputs a decision-making support result for

the computed sewer maintenance to a user through the graphic user interface.

The sewer maintenance decision-making module 130 is formed of a condition-based decision-making module 132 and the pipe way-based decision-

making module 134.

The condition-based decision-making module 132 outputs an object

pipe way corresponding to the condition selected by the user through the

graphic user interface and judges the object pipe way-based aged degree and

computes the sewer maintenance priority and the sewer maintenance cost.

The pipe way-based decision-making module 134 judges the aged

degree of a certain pipe way selected by the user and computes the sewer

maintenance cost of the sewer.

(4) Sewer maintenance control module

The sewer maintenance control module 140 controls an operation and

data exchange of a graphic user interface, sewage sewer data storing unit and

sewer maintenance decision-making module based on a preset control program.

(5) Input unit

The input unit 150 is a unit in which a user inputs data and performs a

designation of an object pipe way and selects an evaluation factor. The input

unit 150 includes a typical input unit such as a keyboard, a mouse, etc.

(6) Output unit

The output unit 160 is an output device for providing the user with various screens and outputting the computed decision-making support result to

the outside so that a user can recognize. The output unit 160 includes an output

device such as a monitor, a printer, a plotter, etc.

Figure 2 is a flow chart of a control method of a decision-making

support system for a sewer maintenance according to a first embodiment of the

present invention.

As shown therein, the control method of a decision-making support

system for a sewer maintenance according to a first embodiment of the present

invention includes connection/initial screen transfer/main screen transfer steps

S100 through S120, a menu screen transfer step S130, an object pipe way

judging step S140, an aged degree computation step S150, a priority judging

step S160, a decision-making support screen transfer step S170. There are

further provided a sewer maintenance cost computation step S180 and a sewer

maintenance cost screen transfer step S190.

(1-1 ) Connection/initial screen transfer/main screen transfer steps S100

through S120

The connection/initial screen transfer/main screen transfer steps S100

through S120 correspond to steps for transferring an initial screen to a user

connected, so that the user selects a function-based menu. (1-2) Menu screen transfer step S 130

The menu screen transfer step S130 is a step for transferring a menu

screen so that the user selects an evaluation factor and the detailed factors of

the evaluation factor.

The menu screen may be implemented as shown in Figure 6. Namely,

evaluation factors such as a buried area, a burial map, etc. are arranged on the

right upper side of the screen, and a plurality of detailed factors are outputted in

the right side of the selected evaluation factor. The user designates a desired

evaluation factor among the evaluation factors and selects a detailed factor of

the designated evaluation factors. The user selects a comparison condition (and,

or) and presses a LIST button or an inquiry button.

(1-3) Object pipe way judging step S140

The object pipe way judging step S140 is a step for judging one or more

than one object pipe way corresponding to the evaluation factor or detailed

factor condition selected from the stored database.

Namely, as shown in Figure 6, when the user selects a buried area, a

buried year, a damage and an electrical resistance as an evaluation factor and

selects an industrial area, 10-5 years, common, and below 700 as the

evaluation factor-based detailed factor, the pipe way corresponding to the

evaluation factor and detailed factor condition from the stored database is

searched. (1-4) Aged degree computation step S150

The aged degree computation step S 150 is a step for summing the

detailed factor-based weight of an object pipe way and computing an aged

degree of each object pipe way.

Namely, in the aged degree computation step S150, each detailed

factor-based weight of the object pipe way judged in the object pipe way judging

step S140 is summed, and the object pipe way-based aged degree is computed.

(1-5) Priority judging step S160

The priority judging step S160 is a step for judging the sewer

maintenance priority based' on the computed object pipe way-based aged

degree.

Namely, in the priority judging step S160, each pipe way-based aged

degree is compared and is arranged based on the high and low values of the

aged degree, and each pipe way is divided into an instant exchange state, an

exchange request state, a maintenance request state, and a current state

maintenance.

(1-6) Decision-making support screen transfer step S170

The decision-making support screen transfer step S170 is a step for

transferring a decision-making support screen that shows an object pipe way- based aged degree and a sewer maintenance priority computed in the aged

degree computation step S150 and the priority judging step S160.

Namely, in the decision-making support screen transfer step S170, the

decision-making support result value including the computed object pipe way-

based aged degree and the sewer maintenance priority is outputted in a screen

type preset so that the user can recognize.

(1-7) Sewer maintenance cost computation step S180

The sewer maintenance cost computation step S180 is a step for

computing the sewer, maintenance cost based on the computed object pipe

way- based aged degree.

Namely, in the sewer maintenance cost computation step S180, the

estimated cost is computed based on the sewer maintenance from the pipe

way-based const computation data including the aged degree and pipe way

exchange cost of the computed object pipe way, the pipe way repair cost, and

the pipe way maintenance cost.

(1-8) Sewer maintenance cost screen transfer step S190

The sewer maintenance cost screen transfer step S190 is a step for

transferring the screen of the object pipe way-based sewer maintenance cost

computed in the sewer maintenance cost computation step S180.

Figure 3 is a flow chart of a control method of a sewer maintenance decision-making support system according to a second embodiment of the

present invention.

As shown in Figure 3, the control method of the sewer maintenance

decision-making support system according to a second embodiment of the

present invention includes a connection/initial screen transfer/main screen

transfer steps S200 through S220, a sewage pipe network screen transfer step

S230, an object pipe way judging step S240, an aged degree computation step

S250, and a decision-making support screen transfer step S260. There are

further provided a sewer maintenance cost computation step S270 and a sewer

maintenance cost screen transfer step S280.

(2-1 ) Connection/initial screen transfer/main screen transfer steps S200

through S220

The connection/initial screen transfer/main screen transfer steps S200

through S220 are steps for transferring an initial screen to the user connected,

and transferring a main screen to the user so that the user can select a

function-based menu.

(2-2) Sewage pipe network screen transfer step S230

The sewage pipe network screen transfer step S230 is a step for

transferring a sewage pipe network screen so that the user can designate an

object pipe way. The sewage pipe network screen may be implemented as shown in

Figure 7. Namely, the sewage pipe network map of the area designated by the

user is displayed on the center of the screen, and the user can select a pipe

way of a certain section using a pointer.

(2-3) Object pipe way judging step S240

The object pipe way judging step S240 is a step for judging whether the

object pipe way selected by the user is a certain pipe way.

(2-4) Aged degree computation step S250

The aged degree computation step S250 is a step for computing an

aged degree by accessing an evaluation factor, a detailed factor, a detailed

factor-based weight data of an object pipe way from the stored database.

(2-5) Decision-making support screen transfer step S260

The decision-making support screen transfer step S260 is a step for

transferring a decision-making support screen showing an aged degree of the

object pipe way computed in the aged degree computation step S250.

(2-6) Sewer maintenance cost computation step S270

The sewer maintenance cost computation step S270 is a step for

computing the sewer maintenance cost based on the aged degree of the computed object pipe way.

Namely, the sewer maintenance cost computation step S270 is a step

for computing an estimated cost based on the sewer maintenance from an aged

degree data of the computed object pipe way and a sewer-based cost

computation data including a pipe way exchange cost, a pipe way repair cost

and a pipe way maintenance cost.

(2-7) Sewer maintenance cost screen transfer step S280

The sewer maintenance cost screen transfer step S280 is a step for

transferring a screen of a sewer maintenance cost of an object pipe way

computed in the sewer maintenance cost computation step S270.

Industrial Applicability

As described above, the decision-making support system for a sewer

maintenance according to a preferred embodiment of the present invention is

capable of computing an aged degree of a pipe way forming a sewage pipe

network and determining a maintenance priority. In addition, it is possible to

accurately predict a cost and effect based on a sewer maintenance and achieve

a systematic sewage pipe network management and maintenance.

In addition, in the decision-making support system for a sewer

maintenance and a control method of the same according to the present

invention, various factors affecting an aging of a pipe way are quantized, for thereby computing an objective aged degree. Therefore, it is possible to obtain

a reliable sewer maintenance decision-making data.

As the present invention may be embodied in several forms without

departing from the spirit or essential characteristics thereof, it should also be

understood that the above-described examples are not limited by any of the

details of the foregoing description, unless otherwise specified, but rather

should be construed broadly within its spirit and scope as defined in the

appended claims, and therefore all changes and modifications that fall within

the meets and bounds of the claims, or equivalences of such meets and bounds

are therefore intended to be embraced by the appended claims.

Claims

Claims:

1. A decision-making support system for a sewer maintenance,

comprising:

a graphic user interface that outputs a function selection means of a

user and a decision-making support result through a GIS-based graphic screen;

a sewage sewer storing unit that stores a sewage sewer data including

a sewage pipe network data, an aged pipe diagnosis evaluation factor data and

a detailed item-based weight data;

a sewer maintenance decision-making module that judges a preset

object sewer-based aged degree and a sewer exchange priority based on the

data stored in the sewage sewer data storing unit and outputs a decision-

making support result for the computed sewer maintenance to a user through

the graphic user interface; and

a sewer maintenance control module that controls the operations of the

graphic user interface, the sewage sewer data storing unit and the sewer

maintenance decision-making module based on a preset control program.

2. The system of claim 1 , wherein said sewage sewer data storing unit

includes:

an evaluation factor database that stores an aged pipe evaluation factor

including a preset evaluation factor and each evaluation factor-based detailed

factor; a factor-based weight database that stores a detailed factor-based

weight data of the aged pipe evaluation data;

a pipe network database that stores a sewage sewer pipe network data

formed of a graphic data such as a sewage pipe network map, a sewage

specification map, a city plan map, a rain water drainage are map, and a

sewage drainage area, and an attribute data based thereon, an input

water/flow-in water/leakage data and a sewage sewer over-flow data; and

a cost computation database that stores a pipe way exchange cost, a

pipe way update cost, a pipe way repair cost, etc.

3. The system of claim 2, wherein said evaluation factor of an aged pipe

evaluation factor data includes at least one among a sewer-based buried area,

a road, a buried year, a damage state, a soil condition, an inner corrosion

degree, a basic construction method, a soil condition, a pipe diameter, a joint

method, the number of divides, a underground water level, an I / I ratio, and a

pipe flow speed state.

4. The system of claim 1 , wherein said sewage sewer data of the sewage

sewer data storing unit further includes a pipe way exchange cost computation

data, and said sewer maintenance decision-making module computes a pipe

way maintenance cost based on the data from the sewage sewer data storing

unit and outputs to the user through the graphic user interface.

5. The system of claim 4, wherein said sewer maintenance decision-

making module includes:

a condition-based decision-making module that outputs an object pipe

way corresponding to a condition selected by a user through the graphic user

interface, and judges the object pipe way-based aged degree and computes a

sewer maintenance priority and sewer maintenance cost; and

a sewer-based decision-making module that judges an aged degree of

a certain pipe way selected by a user and computes a sewer maintenance cost

of the pipe way.

6. A decision-making support control method for a sewer maintenance,

comprising:

a step in which an initial screen is transferred to a user connected, and

a main screen is transferred so that a user can select a function-based menu;

a step in which a menu screen is transferred so that the user can select

an evaluation factor and a detailed factor of the evaluation factor;

a step in which one or more than one object pipe way corresponding to

an evaluation factor and a detailed factor condition selected from the stored

database is judged;

a step in which the detailed factor-based weights of the object pipe way

are summed, for thereby computing an aged degree of each object pipe way; a step in which a sewer maintenance priority is judged based on the

computed object pipe way-based aged degree; and

a step in which the screen of the object pipe way-based aged degree

and the sewer maintenance priority computed in the above step is transferred.

7. The method of claim 6, further comprising:

a step in which a sewer maintenance cost is computed based on the

computed object pipe way aged degree; and

a step in which the screen of the object pipe way-based sewer

maintenance cost computed in the above step is transferred.

8. A decision-making support control method for a sewer maintenance,

comprising:

a step in which an initial screen is transferred to a user connected, and

a main screen is transferred so that a user selects a function-based menu;

a step in which a sewage pipe network screen is transferred so that a

user designates an object pipe way;

a step in which an object pipe way selected by a user is judged;

a step in which an aged degree of the object pipe way is computed by

accessing an evaluation factor, a detailed factor and a detailed factor-based

weight data of the object pipe way from the stored database; and

a step in which a screen of the aged degree of the object pipe way computed in the above step is transferred.

9. The method of claim 8, further comprising:

a step in which a sewer maintenance cost is computed based on an

aged degree of the computed object pipe way; and

a step in which a screen of a sewer maintenance cost of the object pipe

way computed in the above step is transferred.