Intelligent door lock refers to the traditional mechanical lock different on the basis of improvement, in the user security, identification, management of more intelligent and simple lock. Smart door lock is the executing part of the door lock in the access control system. Intelligent door lock is different from the traditional mechanical lock, which is a compound lock with security, convenience and advanced technology. Magnetic card, radio frequency card (non-contact class, high safety, plastic material, configuration is more convenient to carry, low price). Intelligent door locks are safe, interactive, and convenient. Intelligent door lock refers to the traditional mechanical lock different on the basis of improvement, in the user security, identification, management of more intelligent and simple lock. Smart door lock is the executing part of the door lock in the access control system. Intelligent door lock is different from the traditional mechanical lock, which is a compound lock with security, convenience and advanced technology. Magnetic card, radio frequency card (non-contact class, high safety, plastic material, configuration is more convenient to carry, low price). Intelligent door locks are safe, interactive, and convenient.