METHOD AND SYSTEM FOR MONITORING PLANT ASSETS

• US 20100076800A1
• Filed: 07/28/2009
• Published: 03/25/2010
• Est. Priority Date: 08/29/2008
• Status: Abandoned Application

• Current Assignee: Yokogawa Electric Corporation
• Original Assignee: Yokogawa Electric Corporation
• Inventors: Velayudhan, Bijurai Pandiyath
• Application Number:
  US12/510,339
• Publication Number:
  US 20100076800A1
• Time in Patent Office: Days
• US Class Current: 705/7
• CPC Class Codes: G05B 19/41865 characterised by job scheduling, process planning, material flow
• CPC Class Codes: G05B 2219/31396 Business management, production, document, asset, regulatory management, high level
• CPC Class Codes: G06Q 10/0635 Risk analysis of enterprise or organisation activities
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
• CPC Class Codes: Y02P 90/80 Management or planning

Abstract

The invention is a method and system for monitoring plant assets automatically comprising the steps of calculating a sum of the plant assets to be monitored, storing the calculated sum in a database, calculating a sum of the bad actors, computing the percentage of bad actors from the calculated sum, storing the computed percentage of bad actors into the database, calculating a current sum of the plant assets to be monitored after a predetermined interval, retrieving the stored sum of the plant assets, determining whether the current sum of the plant assets corresponds to the stored sum. When the stored sum corresponds to the current sum, the current sum of bad actors is calculated, the percentage of bad actors is computed from the calculated sum to determine an Asset Health Risk Index (“ARI”).

Claims

1. A method for monitoring plant assets automatically comprising the steps of:

(a) calculating a sum of the plant assets to be monitored;

(b) storing the calculated sum in a database;

(c) calculating a sum of the bad actors;

(d) computing the percentage of bad actors from the calculated sum;

(e) storing the computed percentage of bad actors into the database;

(f) calculating a current sum of the plant assets to be monitored after a predetermined interval;

(g) retrieving the stored sum of the plant assets;

(h) determining whether the current sum of the plant assets corresponds to the stored sum;

wherein the stored sum corresponds to the current sum, the method further includes the steps of;

(i) calculating the current sum of bad actors;

(j) computing the percentage of bad actors from the calculated sum; and

(k) determining Asset Health Risk Index.

3. A method according to claim 1 or 2, wherein the step of determining the Asset Health Risk Index further includes the steps of

retrieving the stored percentage of bad actors;

and

computing the difference between the stored percentage of bad actors

and the current percentage of bad actors.

4. A method according to any of the preceding claims further includes the step of storing the Asset Health Risk Index, the current calculated sum of the assets and the percentage of bad actors to the database.

5. A method according to any of the preceding claims further includes the step of updating the Asset Health Risk Index of the plant assets to a display panel.

6. A method according to claim 5 further includes the steps of

determining whether the current sum of bad actors are is the maximum sum and if it is the maximum, updating it as the maximum to the database;

determining whether the current sum of bad actors are is the minimum sum and if it is the minimum, updating it as the minimum to the database; and

updating the maximum and minimum value to the display panel.

7. A method according to any of claim 5 or 6 further includes the step of generating a historical trend of the Asset Health Risk Index and updating to the display panel.

8. A method according to claim 7 further includes the step of displaying the generated historical trend on a display panel.

2. A method for monitoring plant assets automatically at a predetermined interval, the sum of the plant assets to be monitored and the sum of the bad actors in the last monitoring interval are stored in a database, the method comprising the steps of:

(a) calculating a current sum of the plant assets to be monitored at the current predetermined interval;

(b) retrieving the stored sum of the plant assets;

(c) determining whether the current sum of the plant assets corresponds to the stored sum;

wherein the stored sum corresponds to the current sum, the method further includes the steps of

(d) calculating the current sum of the bad actors;

(e) computing the percentage of bad actors from the calculated sum; and

(f) determining Asset Health Risk Index.

9. A system for monitoring plant assets automatically comprising :

(a) a calculator for

a. calculating a sum of the plant assets to be monitored;

b. calculating a sum of the bad actors;

c. computing the percentage of bad actors from the calculated sum; and

d. computing the Asset Health Risk Index of the plant assets;

(b) a database for

a. storing the calculated sum of plant assets;

b. storing the computed percentage of bad actors;

c. storing the computed Asset Health Risk Index of the plant assets; and

(c) a comparator in communication with the calculator and the database for

a. storing the calculated sum of the plant assets to the database;

b. retrieving the stored sum of the plant assets from the database;

c. determining whether the current sum of plant assets corresponds to the stored sum;

d. storing the computed percentage of bad actors to the database;

e. retrieving the stored percentage of bad actors from the database;

f. determining whether the current percentage of bad actors corresponds to the stored percentage;

g. storing the computed the Asset Health Risk Index of the plant assets;

h. retrieving the stored the Asset Health Risk Index of the plant assets; and

i. comparing the current Asset Health Risk Index with the stored Asset Health Risk Index.

10. A system for monitoring plant assets automatically comprising :

(a) a calculator for

(i) calculating a sum of plant assets to be monitored;

(ii) calculating a sum of bad actors;

(iii) computing the percentage of bad actors;

(iv) retrieving the stored percentage of bad actors; and

(v) computing the difference between the stored percentage of bad actors and the current percentage of bad actors

(b) a database for

(i) storing the sum of plant assets calculated in the calculator;

(ii) storing the computed percentage of bad actors in the calculator;

(iii) storing the computed difference of percentage of bad actors in the calculator; and

(c) a comparator for

(i) retrieving the stored sum of the plant assets from the database;

(ii) determining whether the current sum of plant assets corresponds to the stored sum;

(iii) retrieving the stored percentage of bad actors;

(iv) storing the computed the difference between the stored and current percentage of bad actors;

(v) retrieving the stored the difference; and

(vi) comparing the current difference with the stored difference.