Doorbell system and automatic visitor identification method thereof

Abstract

The invention relates to an electronic product and discloses a doorbell system and an automatic visitor identification method thereof. According to the invention, an infrared detection sensor is used for detecting whether a visitor comes through the temperature difference change in a target detection area; and after the visitor is detected and the doorbell ringing operation of the visitor is still not received after a certain time, the doorbell system actively informs people indoors that the visitor comes. Therefore, infrared rays do not need to be transmitted constantly and actively, and only the radiation of a human body needs to be detected passively, so that the power consumption and the cost of the infrared detection sensor are reduced greatly, the feasibility of applying an infrared detection technique to the doorbell system is ensured, and the people indoors can master abnormal situations outdoors.

Description

technical field [0001] The invention relates to electronic products, in particular to a doorbell system in electronic products. Background technique [0002] There are many types of doorbell systems, including electronic doorbells, video doorbells, and electronic peepholes. The hardware is mainly composed of a display screen, a camera, buttons and speakers. The software function basically stays at the simple doorbell button when a visitor presses the doorbell. You can talk to the outside. [0003] However, the current doorbell system also has the following defects: [0004] (1) If someone stays outside the door and does not press the doorbell button (such as a thief staying outside the door or attempting to destroy it), the home does not know the situation outside, and the doorbell will not prompt and alarm for abnormal outdoor conditions; [0005] (2) If a guest rings the doorbell and the owner happens not to be next to the visual doorbell display (for example, upstairs ...

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Problems solved by technology

[0005] (2) If a guest rings the doorbell and the owner happens not to be next to the visual doorbell display (for example, upstairs in a villa or a place away from the doorbell in the kitchen), although the bell can be heard, it is impossible to judge who is outside the door ;

[0006] (3) For the situation that there is no one in the room and visitors come, the current doorbell does not have the function of automatically taking pictures and video recordings, and the head of the household cannot take the initiative to know who has been there, including the time of visit and the situation of the personnel

However, it has high power consumption due to the need for the sensor to be actively emitting infrared light all the time.

Moreover, based on infrared camera technology and other active infrared detection technologies, not only high power consumption, but also large volume and relatively high cost, are not suitable for civilian use

Therefore, in the current doorbell system, it is impossible to really promote the application

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