Intelligent screen turn-on and turn-off control method and system based on microwave radar

By combining microwave radar sensors and state machine models, the problems of privacy leakage and poor environmental adaptability in the control of screen opening and closing are solved, and low-power, high-precision intelligent control is achieved.

CN121807254APending Publication Date: 2026-04-07ANHUI WAYEE SCI & TECH CO LTD
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Patent Information

Application Number
CN202512010894.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-29
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing display screen on/off control technologies suffer from privacy risks, poor environmental adaptability, high power consumption, and inaccurate judgment, especially solutions based on infrared sensors and cameras, which perform poorly under certain conditions.

Method used

A microwave radar sensor is used to detect targets in front of the display screen. Feature information is extracted by processing the radar echo signal, and a state machine model is used to make decisions, thereby realizing intelligent screen opening and closing control.

Benefits of technology

It achieves intelligent screen-on and screen-off control with high privacy protection, strong environmental adaptability, and low power consumption, reducing false triggers, improving judgment accuracy, and is suitable for non-confidential devices.

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Abstract

The invention relates to the technical field of man-machine interaction, in particular to an intelligent screen turning-on and turning-off control method and system based on a microwave radar, which completely eradicates the risk of privacy disclosure and realizes high privacy protection through an identification mode of not collecting optical image information and only analyzing motion and vital signs through electromagnetic waves, and is not influenced by the environment, so that the intelligent screen turning-on and turning-off control method and system based on the microwave radar can be applied to intelligent screen turning-on and turning-off control. The system can stably work in severe environments such as all black and strong light, has super-strong environmental adaptability, and enables the judgment of screen opening to better conform to the real intention of a user by sensing the accurate postures of person existence, no person existence, approaching, departing, right facing or side facing, reduces false triggering to the greatest extent, improves the accuracy of system judgment, and improves the user experience. The instrument does not need to be kept in a bright state all the time in the operation process, when no person is in front of the instrument, the screen is automatically turned off at proper time, and when an operator comes to the front face of the instrument and prepares to operate the screen, screen display is automatically turned on, energy is saved, environment is protected, and the instrument is convenient to operate.
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