Also, the event counter is useful to avoid false alarms of the video motion (VM). Due to the event counter, an event is only triggered when events occur e.g. for as long as two to five seconds. This way, you can make sure that the object is really moving.
This event allows reacting to the occurrence of several events at the same time. Similarly, the camera can react if a certain minimum number of a set of events does not occur.
Set when to trigger the event: All triggers if all selected events are triggering, Not all triggers if some of the selected events do not occur.
Set the maximum length of the time window in which one of the events selected in the Event list has to occur.
The Event Logic feature permits testing source events for their order of occurrence. The event is triggered if one of the events selected in Event Set A and one of the events selected in Event Set B occur within the specified Maximum Time Window. The order of occurrence is optional; it does not necessarily be part of the evaluation (see below).
Note: Events in the event lists that are displayed gray and in parentheses are deactivated; if you intend to use them, configure the desired events in the Event Overview dialog.
The meta event will only be triggered if the interval set in Minimum Delay passes between the occurrence of events specified in the two Event Lists.
When used in conjunction with the video motion detectors or other suitable sensors, the camera can start actions, send messages and record images depending on the direction of motion, for example.
A → B Triggers the logical event only if one of the events selected in Event Set A occurs first and (after the Minimum Delay has passed) one of the events selected in Event Set B occurs.
A ↔ B Triggers the logical event (regardless of the order in which the events occur) if one of the events selected in an event list occurs and (after the Minimum Delay has passed) one of the events selected in the other event list occurs.
A → !B Triggers the logical event only if one of the events selected in Event Set A occurs first and (after the Minimum Delay has passed and before the Maximum Delay has expired) none of the events selected in Event Set B occurs.
Set the maximum length of the time window in which one of the events selected in the Event Set B has to occur.
Set the minimum delay, which has to pass before one of the events selected in Event List is accepted.