Intelligent door lock system

Abstract

An intelligent door lock system comprises a wireless communication module, a storage, a single-chip microcomputer, a door lock operation device, a normally-closed relay and an infrared monitoring module. The wireless communication module receives door lock verification information. User information is stored by the storage. Whether a person lingering for a long time outside a door exists or not is monitored through the infrared monitoring module. The door lock verification information and the user information are compared through the single-chip microcomputer, so that a comparison result is acquired and a power-off control signal is output when a user leaves and the door is reversely locked. A door lock is operated through the door lock operation device according to the comparison result. The power-off control signal is received by a coil of the normally-closed relay. A contact switch of the normally-closed relay is connected to a power supply circuit of household appliances in series. The contact switch of the normally-closed relay is controlled by the power-off control signal to be turned off. By the adoption of the intelligent door lock system, the power supply circuit of the household appliances can be automatic opened after the user leaves and the door is reversely locked, waste of electric energy is avoided, and electricity utilization safety is guaranteed.

Description

technical field [0001] The invention relates to the technical field of smart home, in particular to an intelligent door lock system. Background technique [0002] An electronic combination lock is an electronic product that controls the operation of a circuit or a chip through a password input, thereby controlling the closing of a mechanical switch, and completing the tasks of unlocking and locking. There are many types of electronic combination locks, including simple circuit products and chip-based products with high cost performance. In the field of security technology prevention, the electronic combination lock with anti-theft alarm function replaces the traditional mechanical combination lock, which overcomes the shortcomings of the mechanical combination lock with less passwords and poor safety performance, and makes the combination lock both technically and in performance. A big step up. With the development of large-scale integrated circuit technology, especially t...

AI Technical Summary

Problems solved by technology

[0004] What the invention aims to solve is the problem that the user forgets to turn off various electrical appliances in the room when going out to lock the door, resulting in waste of electric energy and potential safety hazards

Images