Patent ID: 8589214
Filing Date: 2013-11-19
Classification: G05B

Abstract:
1. A non-transitory computer readable medium providing a health meter for evaluating a status of process safety at a facility as an executive dashboard, wherein the executive dashboard is viewable by a plurality of users simultaneously via client devices with display screens through a network, wherein the executive dashboard is resident in a data storage connected to a processor, and wherein the health meter comprises: a. computer instructions for performing safety integrity level calculations and a gap analysis comprising: b. computer instructions to provide a gap analysis alert when a gap analysis deviation exceeds or does not meet a gap analysis preset limit; c. computer instructions for forming a pie chart based on a comparison of an assumed frequency of initiating events in a risk assessment to an actual frequency of initiating events leading to a hazard; d. computer instructions for generating an event frequency alert when a comparison of the actual frequency of initiating events indicates that the actual frequency of initiating events exceeds or does not meet a frequency preset limit, wherein the gap analysis provides a comparison between safety values, the target risk reduction requirements from the Layer of Protection Analysis (LOPA) and the achieved Risk Reduction from the Safety Integrity Level (SIL) calculations; e. computer instructions for forming a pie chart based on a comparison of assumed initiating event sources in the risk assessment to actual initiating event sources leading to the hazard; f. computer instructions for generating an initiating event source alert when the actual initiating event sources deviate from as assumed initiating event sources; g. computer instructions for forming a pie chart based on a comparison of actual failure rates to assumed failure rates in the safety integrity level calculations; h. computer instructions to generate an actual failure rate analysis alert when a comparison of the actual failure rates to assumed failure rates indicates the actual failure rates deviate from a failure rate preset limit; i. computer instructions to form a pie chart based on a comparison of an assumed test interval in the safety integrity level calculations to an actual test interval performance results; j. computer instructions to provide a test interval performance alert when a test interval performance analysis deviation exceeds or does not meet a test interval preset limit; k. computer instructions to form a pie chart based on a comparison of estimated time in bypass used in the safety integrity level calculations to an actual time in bypass to generate a time in bypass analysis alert when the comparison indicates that the actual time in bypass deviates from a time in bypass preset limit; l. computer instructions to provide a percent completion analysis of safety integrity level calculations required by the risk assessment; and m. computer instructions to generate a percent completion alert when the percent complete deviates from a percent completion preset limit; n. computer instructions for calculating a weighted score by converting each said comparison to a weighted percentage and adding the weighted percentages to form an safety instrumented systems health rating score, wherein each weighted percentage represents a deviation percentage provided by each comparison; and o. computer instructions to form an executive dashboard concurrently displaying the pie charts, the safety instrumented systems health rating score, and the alerts, to view process safety at the facility.