Patent ID: 7236690

Claim:
An event management system, comprising: a local recorder apparatus that continuously records images from a plurality of cameras; an event definer that defines, for each camera, a period of time relative to an event occurrence time, for an image to be associated with an event; an alarm receiver that receives an alarm upon occurrence of the event; an event maker that, when the alarm receiver receives the alarm, calculates, for each camera, a start time and an end time for the image to be associated with the event, based on the period of time defined in the event definer; and a local event maker that extracts, from the images recorded in the local recorder apparatus, the image to be associated with the event, as a local event image, based on the start time and the end time calculated in the event maker, wherein the event definer defines the period of time relative to the event occurrence time for the image to be associated with the event, such that the relative period of time is varied for at least one camera.