Differences

This shows you the differences between two versions of the page.

--- alarm_analysis.reports.stalealarms:stale_alarms [2020/11/03 15:57] – su
+++ alarm_analysis.reports.stalealarms:stale_alarms [2021/01/22 15:14] – [Stale Alarm Detection] su
@@ Line 5: / Line 5: @@
 {{ :alarm_analysis:stalealarmreport_01.png?direct&800 |}}
-For a defined reporting period (e.g. 1 Oct 2020 00:00:00 - 1 Nov 2020 00:00:00) the identified the Top 20 worst offending stale alarms.
+The picture above shows an example Stale Alarm Report.
+By default, the report shows the Top 20 stale alarms (sorted by "Total On Time") for a defined reporting period (e.g. 1 Oct 2020 00:00:00 - 1 Nov 2020 00:00:00).
 The calculated metrics are:
-  * Count: How many times a stale alarm was detected during the reporting period. \\ //For details on the detection process, see below.//
+  * **Count:** Number of Stale Alarms / Total Number of Alarms, for reporting period.
+  * **Total on Time (days):**  The accumulated on-time of stale alarms.
-  * Total on Time (days):  The accumulated time within the reporting period attributed to stale instance of the alarm.
-{{ :alarm_analysis:stalealarmreport_01.png?direct&400 |}}
 ===== Stale Alarm Detection =====
@@ Line 26: / Line 27: @@
   * transitioned after 24 hours (or more) in the selected period (2,3)
   * were on for longer than 24h but haven't returned to normal within the selected period (4).
-  * were on for longer than 24h but haven't started inside the selected period boundaries (5).
-Examples 6 and 7 transition outwith the reporting period and are therefore **omitted**
+Example 5 has no associated Alarm, therefore no on-time can be estimated and is therefore omitted.
+Examples 6 and 7 transition outside the reporting period and are therefore **omitted**