JP3139498B1 - Water supply business support system - Google Patents

Abstract

Abstract: [PROBLEMS] To realize a water supply business support system capable of supporting effective capital investment. SOLUTION: This is a water supply business support system that creates a bathtub curve based on the tendency of failure occurring in the water supply equipment, and provides information necessary for considering the life cycle of the equipment using the bathtub curve.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a water supply support system for supporting a water supply business.

[0002]

2. Description of the Related Art Water purification plants are distributed in various places. The water distribution management system receives data from distributed water treatment plants by communication, and controls the amount of water distribution at each water treatment plant based on the received data.

[0003] Each water supply system of a water purification plant has its life cycle. Based on this life cycle, maintenance and renewal of water supply equipment are performed. Conventionally, maintenance and management of water supply facilities, renewal of facilities, and the like have been performed without considering the life cycle of the facilities, and thus unnecessary investments have been made in some cases.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a bathtub curve is created based on the tendency of a failure occurring in a water supply system. It is an object of the present invention to provide a water supply business support system capable of supporting an effective capital investment by providing information necessary for considering a life cycle of the water supply.

[0005]

SUMMARY OF THE INVENTION The present invention is a water supply business support system having the following configuration.

(1) A memory in which data indicating the state of the water supply is stored, and when the water supply generates a failure signal, data indicating the state of the water supply before and after the time of occurrence of the failure signal and failure history data are stored. Search means for searching from the memory; display means for displaying data searched by the search means; analysis means for analyzing data searched by the search means from a plurality of cuts to find a tendency of failure; And a bathtub curve creating means for creating a bathtub curve based on the tendency of the failure analyzed by the means, wherein the created bathtub curve is displayed on the display means.

(2) A bathtub curve memory for storing the bathtub curve created by the bathtub curve creation means, and a life cycle judgment for each equipment or device from the bathtub curve stored in the bathtub curve memory. (1) The water supply business support system according to (1), further comprising: means and priority determination means for determining the priority of equipment update based on the determination result of the determination means.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram showing one embodiment of the present invention. In FIG. 1, the water purification plants 11 to 1n are distributed.
The water purification plants 11 to 1n include a water purification tank 101, a water supply facility 10
2. A control system 103 for controlling the water supply equipment 102 is provided.

[0009] The water distribution management system 20 is provided at each of the water treatment plants 11-1.
n water distribution is managed. The data collection means 21 collects data such as the amount of water distribution and the state of the water supply equipment (whether it is operating normally or has failed) from each of the water purification plants 11 to 1n via a communication line. The collected data is stored in the memory 22. The water distribution management device 23 performs water distribution management based on the data in the memory 22.

[0010] The maintenance management support system 30 supports maintenance by providing information necessary for maintenance of the water supply equipment. The search unit 31 searches the memory 22 for data indicating the state of the water supply facility before and after the occurrence of the failure signal and failure history data when the water supply facility of the water purification plant generates a failure signal. The display means 32 displays the data searched by the search means 31. by this,
When a water facility breaks down, data relating to the failed facility is automatically displayed on the screen.

The analyzing means 33 analyzes the data retrieved by the retrieving means 31 from a plurality of cuts when the water facility generates a failure signal, and finds a tendency of failure.

The bathtub curve creating means 34 includes the analyzing means 3
A bathtub curve is created based on the failure tendency analyzed in Step 3. The created bathtub curve is displayed on the display means 32.

The maintenance data memory 35 stores data including at least one of maintenance data, spare parts, accessories, and repair shop data. Search means 36
Searches the maintenance data memory 35 when the water supply system generates a failure signal, and searches for at least one data of a spare part of the failed equipment, presence or absence of an accessory, and a repairer who repairs the failure.

The bathtub curve memory 37 stores the bathtub curve created by the bathtub curve creating means 34. The judging means 38 judges a life cycle for each facility or device from the bathtub curve stored in the bathtub curve memory 37. The priority determining unit 39 determines the priority of the equipment update based on the determination result of the determining unit 38.

In the system shown in FIG. 1, data indicating the state of the water supply equipment at each water purification plant is stored in the memory 22 as needed. When the water supply equipment generates a failure signal, the search unit 31 searches the memory 22 for data indicating the state of the water supply equipment before and after the time of occurrence of the failure signal and failure history data. The failure signal is generated from alarm generation means installed in the water supply facility. The display means 32 displays data relating to the faulty equipment searched by the search means 31. This eliminates the need for the on-site worker to search for data relating to the malfunctioning equipment.

The analyzing means 33 analyzes the data obtained by the search from a plurality of cuts and finds a tendency of failure. For example, the failure frequency is analyzed at each of the water supply facilities, each equipment of the water supply equipment, each manufacturer of the equipment, each delivery year of the equipment, each season, each weather, each simultaneous failure equipment, and the like, and the tendency of the failure is found. This makes it easier for the operator to consider the countermeasures for failure.

The bathtub curve creating means 34 includes the analyzing means 3
Based on the analysis result of 3, the failure data is plotted to create a bathtub curve. Bathtub curves are created for each device. The created bathtub curve is displayed on the display means 32.

FIG. 2 is a diagram showing a general bathtub curve. As shown in FIG. 2, the bathtub curve includes an initial failure period in which a failure occurs due to a failure in the design and manufacture of equipment, an accidental failure period in which the failure occurrence rate is stabilized at a substantially constant value, mechanical wear and deterioration, and the like. The general pattern of the failure characteristics of the equipment is represented by three periods of the wear failure period in which the failure occurs.

The search means 36 searches the maintenance data memory 35 when the water supply system generates a failure signal.
At least one data of a spare part of the faulty equipment, presence / absence of an accessory, and a repairer who fixes the fault is searched. For example, when the communication card breaks down, data such as the presence and quantity of a spare card, first-aid measures, and contact information of a repair contractor are searched. Necessary measures are taken based on this data.

The judging means 38 includes a bathtub curve creating means 3
The bathtub curve created in step 4 and the bathtub curve in FIG. 2 are created, and the period to which the equipment falls in the bathtub curve in FIG. 2 is identified. Then, the future failure rate is calculated based on the corresponding period, and (maintenance and maintenance cost) x (failure rate) is compared with the cost required for updating the equipment and the benefits (quantification) of the update. The break-even point is defined as the life cycle of the equipment.

In determining the life cycle of the equipment, information is collected for each equipment, the maintenance cost of the equipment is compared with the merit (quantified) of updating, and the breakeven point of profit and loss is defined as the life cycle of the equipment. In this way, updating is planned for each device and each facility so as to minimize the cost.

Based on the result of the judgment made by the judging means 38, the priority order judging means 39 gives higher priority to the updating of devices / facilities whose life cycle is approaching.

[0023]

As described above, according to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, since the bathtub curve is created based on the tendency of the failure occurring in the water supply equipment and the created bathtub curve is displayed, the life cycle of the equipment is taken into consideration. Necessary information is provided. This can support effective capital investment. According to the second aspect of the present invention, the life cycle is determined in units of equipment or units of equipment from the bathtub curve, so that it is possible to accurately determine the update time of equipment and equipment and to support effective equipment investment.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention.

FIG. 2 is a diagram showing a general bathtub curve.

[Explanation of symbols]

 102 Water supply equipment 22 Memory 31 Search means 33 Analysis means 34 Bathtub curve creation means 37 Bathtub curve memory 38 Judgment means 39 Priority judgment means

Claims (2)

(57) [Claims] A memory for storing data indicating a state of the water supply equipment; and a memory for storing the water supply equipment state and failure history data before and after the time of occurrence of the failure signal when the water supply equipment generates a failure signal. Search means for searching from a memory; display means for displaying data searched by the search means; analysis means for analyzing data searched by the search means from a plurality of cuts to find a tendency of failure; Bathtub curve creating means for creating a bathtub curve based on the tendency of the failure analyzed in,
A water supply business support system, wherein the created bathtub curve is displayed on the display means. 2. A bathtub curve memory for storing a bathtub curve created by said bathtub curve creating means, and a judging means for judging a life cycle for each equipment or device from the bathtub curve stored in the bathtub curve memory. The water supply business support system according to claim 1, further comprising: priority determination means for determining a priority of equipment update based on a determination result of the determination means.