The core and foundation of the Internet of Things is still the Internet. It is a network that is extended and expanded on the basis of the Internet. Its client extends to any item and item for information exchange and communication. Therefore, the definition of the Internet of Things is that through radio frequency identification (RFID), infrared sensors, global positioning systems, laser scanners and other equipment in accordance with agreed protocols for information exchange and communication to realize intelligent identification, positioning, monitoring and management of items.

The Internet of Things is based on the Internet and consists of the perception layer, network layer, platform layer and application layer. The perception layer collects information and data, transmits it through the network layer to the platform layer to process information, and then feeds back to the application layer to guide specific behaviors. Security products such as door locks and smart access control belong to the application layer.

The Internet of Things technology is based on the development of the Internet of Things. Many companies follow the trend of the development of the times and start to use the Internet of Things method and technology to create a sense of happiness, so that safety and profitability can silently infiltrate every link of the smart community.

For property, the maintenance cost of building intercom is high and problem detection is difficult. If the whole equipment is put on the Internet of Things platform for real-time monitoring, maintenance personnel can save a lot of time.

The use of Internet of Things technology can combine building intercoms, access control systems, video surveillance, property services and community policing. It makes full use of information technologies such as mobile Internet, big data, dynamic face recognition, fingerprint recognition to solve the problem of information collection, comparison, authorization, management, and service issues of different groups such as, owners, visitors, and floating population.