Intelligent switchable backlight door bell

Abstract

The invention discloses an intelligent switchable backlight door bell by which a user can timely know a home security situation and home visitor information. The intelligent switchable backlight door bell consists of two parts, namely an outdoor unit and an indoor unit, which are connected through an A / D (Analog / Digital) conversion circuit, wherein the intelligent switchable backlight door bell has a backlight function, a non-disturb function and a number pre-storage function; a user mobile phone can be dialed through a pre-stored number to communicate with a visitor; a backlight panel automatically emits light while a microphone emits sound, so that the reliability for use of the door bell under a noise environment is increased, and the use of hearing disabilities is facilitated; a microcomputer chip processor is placed in the indoor unit; and when the user goes out, the microcomputer chip processor controls DTMF (Dual Tone Multiple Frequency) dialing to realize an intercommunication function of the mobile phone and the door bell so as to inform the user of guest visit information; a key operation system is connected with a number change processor of a microcomputer processing chip to store the number; when the number is wrong and is reset, the number is newly input through the key operation system for pre-storage; and when a door bell component becomes loose to fall or is stolen, an anti-theft alarm device emits alarm sound.

Description

【Technical field】 [0001] The invention relates to a doorbell, in particular to a doorbell that can automatically dial through a pre-stored number to call a user's mobile phone and a visitor. It has a backlight function, and the indoor unit and the outdoor unit are connected through an A / D conversion circuit line. It has a do-not-disturb function and a pre-stored number. Functional smart switchable backlit doorbell. 【Background technique】 [0002] Along with the raising day by day of people's living standard, the form of the house has been developed to multi-storey even high-rise by the traditional single storey house, and the doorbell has become a kind of practical necessary facility of building construction. However, most of the doorbells on the market have a single function, do not have the anti-theft alarm function and the number pre-stored automatic dialing function, and the user cannot know the information of the visitor or the security situation at home in time. 【Con...

AI Technical Summary

Problems solved by technology

However, most of the doorbells currently on the market have a single function, and do not have the anti-theft alarm function and the number pre-stored automatic dialing function. Users cannot timely know the information of visitors at home or the security situation at home.

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