Rule-based Complex Event Processing on Tactical Moving Objects

On a battlefield, tactical moving objects, such as airplanes and tanks, need to track and monitor. It is crucial for headquarters to know the event occurrence, especially complex events, of the objects in real time, such as jet fighter invading and ship collision. However, radars or other sensors are only able to detect primitive and simple events of the tactical moving objects. It is a challenge to manage large amounts of incoming simple events and analyze their relationships to infer complex events in real time. In this paper, we provide a clear solution to dealing with the challenges by using complex event processing (CEP), which is able to extract meaningful complex events based on specified rules. We find that the events of tactical moving objects are spatial-temporal highly constrained. Based on that, we define and formalize the semantics of CEP rules on tactical moving objects. Within a CEP rule, there are several intermediate events occurring in a specified order and presenting in a hierarchical structure. A CEP management system has been built for capturing, filtering and adapting raw events, as well as generating complex events based on CEP rules. We evaluate our system by using simulated event data that generated by our other project based on several scenarios, such as jet fighter invading, battleship crashing and sinking.