Surveillance zones are defined using pipeline way-points and width of the individual zone, each with event triggers which are automatically activated when any unusual activity is triggered near the pipe line area & vessels approach the zone. Within the zones all vessel activities are logged, and depending on the type of event, watch standing operators are notified by a message on display or by SMS/email. Likewise, watch standing officers at vessels are automatically notified by AIS messages.
Adaptable filters minimize false positive alarms, e.g. alarms caused by vessels with legitimate presence in the surveillance zone and normal, regular traffic, also alarms are caused when the system sees any kind of unauthorized activity or pressure drop in the pipe line, the system triggers the Active operator intervention and direct communication via e.g. VHF is only required in situations where a vessel continues to show direct abnormal behavior (a contingency situation), or if the probability of violation is high
The EAPPS graphical user interface provides operators with a complete operational picture of the pipeline protection zone and defined surveillance zones, and all the AIS-equipped vessels in the area