JPS6285572A - Guidance device for maintenance of plant facilities - Google Patents

Abstract

PURPOSE:To attain simple maintenance of plant facilities by giving guidance for investigation of an accident by the reasoning calculation and delivering a desired drawing image by an image data controller using an optical disk and based on the result of said investigation. CONSTITUTION:A reasoning computer 1 refers to a diagnosis tree of a knowledge base 8 of a magnetic disk device 2 to reason the accident investigation guidance and displays it on a CRT device 3 in response to the abnormal phenomenon of a device which is supplied by a maintenance operator through the device 3. At the same time, an image information controller 4 refers to an optical disk device 5 to display the desired vector, layout, block, and flow charts, etc. on an image display 6 in accordance with said investigation guidance. Thus the simple maintenance is secured with the plant facilities by the display of those various charts.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to electricity in social public facilities such as industrial plant equipment, buildings, water supply and sewage systems, and transportation.

Relating to a plant level maintenance guidance system for mechanical systems.

[Technical background of the invention and its problems]

In recent years, in equipment maintenance for electrical and mechanical systems, although the technical level of maintenance targets has improved due to the shift to electronics and sophistication of technology, there has been a decline in the number of experienced maintenance personnel and an increase in maintenance costs. In order to satisfy everyone's demand for labor saving, it is strongly desired to provide a simple equipment maintenance guidance system that allows even inexperienced maintenance personnel to perform equipment maintenance easily. This thing.

This is especially noticeable in recent years, when regular maintenance personnel have to maintain multiple pieces of equipment that they are not familiar with, especially at night when equipment is in continuous operation 24 hours a day. At the very least, being able to secure some kind of primary response is becoming an essential requirement for equipment maintenance management.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned problems by combining technology for providing accident investigation guidance using a reasoning mechanism using conventional knowledge engineering technology and technology for an image data management device based on image data. avoided the points,
The purpose is to provide a guidance system for accident investigation that has a strong ability to respond to plant modifications and updates, and that can be easily transferred to plants that do not use computers for accident investigation.

[Summary of the invention]

In order to achieve the above object, the present invention has recently been rapidly put into practical use, and a large amount of drawing materials for plants, etc.

We introduced an image data management device using optical disks, which is now being used to file technical management materials, and it is now possible to convert layout diagrams, block diagrams, flow diagrams, etc. that were previously drawn using vectors and databases to hand-drawn drawings. To provide a device that allows direct image input.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows one embodiment of the present invention.
Main alarm output a□ of device [A inputted from RT device 3, device [
Based on the event 15 of output voltage abnormality a2 of A, the inference computer 1 refers to the knowledge base 8 of the diagnostic tree diagram in FIG. 2, and determines that the situation is the intermediate event ml. CR the troubleshooting guidance screen Figure 3.
Display on T device 3. In the present invention, an image data management device 4 is provided separately from the inference computer 1, and an optical disk device 5 is provided.
Image data such as block diagrams, flow diagrams, layout diagrams, etc., as well as mechanical design drawings and electrical circuit diagrams of plant equipment are included.

It stores drawing data 11 such as sequence diagrams. The connection between the diagnostic computer 1 and the image data management device 4 is R3-232C.
are connected using standard interfaces such as

When the diagnostic tree is traced as described above and it is determined that the situation is the intermediate event ml, the signal 12 indicating that the intermediate event ml is present or the signal 12 of the set of drawings Nα necessary for the intermediate event ml is transmitted. , is transmitted from the inference computer 1 to the image data management device 4. Image data management device! 4
retrieves the diagram required for the intermediate event ml from the optical disk device 5 and displays it on the image display 6 adjacent to the CRT device 3. That is, a block diagram and a flow diagram are shown while proceeding with troubleshooting operations on the CRT device 3.

Related drawings such as the layout drawing 10 and various design drawings 11 can be viewed on the image display 6.

As another example, (1) the inference computer 1 is a maintenance workstation that is connected to both the magnetic disk 2 and the optical disk 5 and can perform both the functions of the CRT 3 and the image display 6, and stores code data and image data. A system that handles both.

■ A system in which the inference calculation 8!1 and the image information management device 4 are connected in an n:m ratio via a LAN.

(3) In addition to troubleshooting purposes, the system stores work standards for plant operations on the optical disk 5 and displays necessary work standards on a display according to the operating status.

〔Effect of the invention〕

This method has the following effects.

0) Block diagrams, layout diagrams, and flowchart diagrams are essential to support maintenance work by inexperienced and non-veteran maintenance personnel, but due to the limitations of storing these diagram data on magnetic disks using conventional vector databases. It can be opened and stored on an optical disc with an image database.

■ Previously, it required a lot of time and effort to draw from basic shapes because it was vector data, but since it is an image database, you can simply read handwritten block diagrams, layout diagrams, and flowchart diagrams with an image reader. It gets better.

■ Conventional vector data methods had limited expressive capabilities and were unable to express fine details.
For image data method: 8 lines/m, 16 lines/1m
With this understanding, it is possible to express the expressive ability of handwritten drawings.

(f) With the conventional method, design drawings etc. could not be displayed because drawing work was required, but in the case of the image data method, design drawings such as mechanical structure diagrams, N air circuit diagrams, and electrical sequence diagrams can also be displayed on the image reader. It can be read and guidance can be provided on the image display.

■ Plant equipment is repeatedly remodeled and updated, and while conventional methods required drawings to be drawn again, with this method, only handwritten drawings such as remodeling drawings can be input using an image reader.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of a plant equipment maintenance troubleshooting guidance system showing one embodiment of the present invention, and FIG. 2 is an explanatory diagram of a diagnostic tree using a production system.
Fig. 3 is an explanatory diagram of an example of a CRT guidance display in the diagnosis process, Fig. 4 is an explanatory diagram of an example of a block diagram display to support diagnosis, and Fig. 5 is an explanatory diagram showing an example of a layout diagram display to support diagnosis. It is. DESCRIPTION OF SYMBOLS 1... Inference computer, 2... Magnetic disk device 3... CRT device, 4... Image information management device 5... Optical disk device, 6... Image display 7... Inference mechanism section , 8...Knowledge-based agent Patent attorney Nori Chika Nori Yudo Hirofumi Mitsumata Figure 1

Claims (1)

[Claims] Equipment maintenance and accident investigation guide equipment for electrical and mechanical equipment of plant equipment or social public facilities has a built-in diagnostic device for production systems, and supports accident investigation by guiding the investigation location according to the details of the accident. At each stage of the accident investigation, it displays drawing information such as layout diagrams, block diagrams, flowcharts, mechanical structure diagrams, electrical circuit diagrams, or sequence diagrams of related plant equipment, and assists maintenance personnel in accident investigation. A plant equipment maintenance guidance device comprising a supporting image data management device and managing drawing information as image data.