System and method for detecting multi-level intrusion events and computer program product thereof

A multi-level intrusion event detecting system, comprising:

• an area recognition module, configured for performing a geometric topology operation to recognize a plurality of areas in a ground plane, wherein the ground plane comprises a plurality of boundaries and a plurality of gates, and each of the areas is corresponding to at least one of the boundaries and at least one of the gates;
• and
• an area classification module, configured for defining a plurality of security levels and respectively classifying the areas recognized by the area recognition module as the security levels,
• wherein the geometric topology operation is a medial axis transformation,
• wherein the area recognition module generates a skeleton corresponding to the ground plane through the medial axis transformation,
• wherein the skeleton has a plurality of skeleton points, each of the skeleton points has a radius, and the radiuses are radiuses of maximum inscribed circles between the skeleton points and the boundaries in the ground plane,
• wherein the area recognition module recognizes the areas and the gates according to the skeleton points and the radiuses of the skeleton points.