... Features1) Intelligent analyze function : perimeter detection , objects care, video diagnosis and alarm linkage2) combines DVR/NVR/HVR ... IVS(intelligent video analysis system),like perimeter detection,items care, flowmeter, abnormal video signal diagnosis13. DVR,NVR ... intelligent video analysis system), like perimeter detection, items care, flowmeter, abnormal video signal diagnosis.1 Permeter detection ...