Network camera system and control method therefor in which, when a photo-taking condition changes, a user can readily recognize an area where the condition change is occurring

摘要

A network camera system is provided that detects an occurrence of a condition change at a periphery of an image pickup apparatus, obtains a direction of the detected condition change, and notifies a user of the occurrence of the condition change and a direction of the condition change on a display of a terminal device.