Security is the primary tenants require "220V Cooling Fan" system, intelligent security is the most important part of the smart home. Smart home security system through a variety of security detectors (smoke sense, motion detection, glass break detection, door, etc.) and access control, video intercom, video surveillance and protection system composed of three-dimensional. Intercom "220V Cooling Fan" enables users to clearly observe visitors, dialogue with visitors, and keyless entry. Alarm system in the event of alarm, the alarm message will automatically be sent to residential property, and sends wisdom "220V Cooling Fan" and a telephone or SMS alarm system will alarm information to the owners.