Control method for surveillance system

A control method for a surveillance system, comprising the steps of:

• taking pictures of a region of interest and generating an image by an infrared camera;
• receiving the image by a controller, determining by the controller whether the image meets an illumination-related criterion, and sending an illumination command by the controller when the image meets the illumination-related criterion;
• and
• emitting visible light by a lamp when the lamp receives the illumination command.

A control method for a surveillance system, comprising the steps of:

• detecting a region of interest by an infrared sensor, followed by generating a trigger signal by the infrared sensor when the infrared sensor detects a moving object in the region of interest;
• receiving the trigger signal by a controller and determining accordingly thereby whether to generate an enable command;
• taking pictures of the region of interest to generate an image thereof, by an infrared camera, when the infrared camera receives the enable command;
• receiving the image by the controller and determining accordingly thereby whether the image meets an illumination-related criterion, followed by sending an illumination command by the controller when the image meets the illumination-related criterion;
• and
• emitting visible light by a lamp when the lamp receives the illumination command.