ShipsDetectionSceneTraceList message in JSON format
{ "ShipsDetectionSceneTraceList":[{ "ShipsDetectionSceneTrace":{ "sid":, /*required, integer type, scene ID*/ "sceneName":"", *required, string type, scene name*/ "patrolId":, /*optional, integer type, patrol sequence ID, it is the scene serial number in the patrol*/ "functionMode":"", /*optional, string type, function mode: shipFlowDetection-ship flow detection mode, dredgerDetection-dredger detection mode*/ "dwelltime":, /*optional, integer type, scene dwell time, ranges from 30s to 3600s*/ "overStayingAlarmTime":, /*optional, integer type, ranges from 60s to 3600s. The scene dwell time should be no less than overstay alarm time*/ "SceneNameOverlay":{ /*optional, scene name OSD*/ "enabled":, /*required, enable scene name OSD*/ "ScreenSize":{ /*normalized size*/ "ScreenWidth":1, /*optional, integer type, normalized width*/ "ScreenHeight":1 /*optional, integer type, normalized height*/ }, "positionX":1, /*optional, integer type, original point X-coordinate*/ "positionY":1 /*optional, integer type, original point Y-coordiante*/ } } }] }