# US 2013/0158682 A1 · Method of displaying abnormal status in plant operation monitoring system

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- Number: US 2013/0158682 A1
- Document ID: US20130158682A1
- Status: Published application
- Kind: A1
- Application number: 13/714,425
- Filed: 2012-12-14
- Published: 2013-06-20
- Earliest claimed: 2011-12-15
- Assignees: Xeonet Co., Ltd.
- Inventors: Seong-Chul JOO; Young-Min Kweon
- Web page: https://patentgrep.com/patent/US20130158682A1

## CPC

- G05B 23/0272: {Presentation of monitored results, e.g. selection of status reports to be displayed; Filtering information to the user}
- G05B 19/4063: Monitoring general control system (G05B19/4062 takes precedence)
- G05B 2219/34475: Detect abnormality of control system without inverted model, using input command
- G05B: CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (systems for controlling or regulating non-electric variables G05D; systems for regulating electric or magnetic variables G05F; control devices or systems insofar as characterised by mechanical features only G05G)

## Abstract

Disclosed therein is a method of displaying an abnormal status in a plant operation monitoring system. The method of displaying the abnormal status includes the steps of: receiving information of operational states from sensing means mounted on devices, machines and facilities constituting an industrial plant system; checking whether or not there is any abnormal signal in the operational states, logically grouping parts influencing on operational values when the abnormal signal is generated, and displaying the parts on a piping & instrument drawing (P&ID) on a monitor; and tracing the abnormal signal in a reverse direction of a system flow, searching out the device which causes the abnormal state, and displaying the abnormal device on the piping & instrument drawing.

## Claims

### Claim 1

A method of displaying an abnormal status in a plant operation monitoring system comprising the steps of:
receiving information of operational states from sensing means mounted on devices, machines and facilities constituting an industrial plant system;
checking whether or not there is any abnormal signal in the operational states, logically grouping parts influencing on operational values when the abnormal signal is generated, and displaying the parts on a piping & instrument drawing (P&ID) on a monitor; and
tracing the abnormal signal in a reverse direction of a system flow, searching out the device which causes the abnormal state, and displaying the abnormal device on the piping & instrument drawing.

### Claim 2 (depends on 1)

The displaying method according to claim 1, wherein the step of displaying on the piping & instrument drawing comprises the steps of grouping zones having the same operational state information into one group and searching out the device causing the failure in correlation between the above group and parts causing a change in operational state information.

### Claim 3 (depends on 1)

The displaying method according to claim 1, wherein the step of displaying on the piping & instrument drawing comprises the steps of grouping zones having the same operational state information into one group.

### Claim 4 (depends on 1)

The displaying method according to claim 1, wherein the step of displaying the abnormal device comprises the step of displaying the grouped parts on the monitor in a way that a manager can discriminate them.

### Claim 5 (depends on 4)

The displaying method according to claim 4, wherein the step of displaying the abnormal device comprises the step of displaying the grouped parts on the monitor using difference in colors.

### Claim 6 (depends on 1)

The displaying method according to claim 1, wherein the operational state information includes temperature information, pressure information, and flow rate information of the devices, machines and facilities of the industrial plant system.

### Claim 7 (depends on 1)

The displaying method according to claim 1, wherein one detection means is mounted in one group of the zones having the same operational state information.

### Claim 8 (depends on 1)

The displaying method according to claim 1, wherein the abnormal signal is a signal assumed as an abnormal state that the operational state information of the industrial plant system is out of a regular and normal operation range.