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Introduction
The purpose of the Alarm Dashboard is to give an overview of recent alarms at a glance, without having to utilise the Playback Query function. Clear, interactive graphs present alarm data ordered by Rule, Section and time, as well as displaying System Alarms.
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Querying
To make an alarm query, three simple options need to be input in the Alarm Query Bar:
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Carriageway: select the carriageway that you want to view alarms for. Note that when you filter to a selected carriageway, you will get alarm per section data.
Rule Type: select the rule type you wish to filter for. You can select one more rule types. Leaving this filter blank will select all.
Time Period: the fixed time period you want to review the alarm data for. These time periods run from midnight to midnight.
The results are automatically calculated and will be presented in the four graphs below; a Rules bar graph, an Alarm Count (per Sections) line graph, a Top Alarm Sections pie chart and an Alarms by Time line graph. In the example below, the alarm query has been for Debris alarms in the 'School Road' carriageway over the last 24 hours:
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If there are unusually few alarms on first glance at the Rules graph, then it may be useful to go straight to the System Alarms graph to see if there have been any errors in the system that have prevented usual rule and alarm generation. |
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Related
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