History

When the state of a topic is changed the previous value is stored. The history information include the time and location of every value. This can be used for analysis and auditing purposes and to detect relations between topics.

Table

To view the history click on History in the sidemenu and enter a search term for a topic. When you click on the topic the history of the state is shown. You can click on the columns to change the sort order of fields or change the sort direction.

Timeline

To view the data in a time chart click on the tab Timeline. Yo can change the periods by changing the From and Until time points.

Location

The map view shows the data in OpenStreetMap. Datapoint that are close together are clustered. So see more details click on the cluster marker or zoom-in to the chart.