Safe and energy-saving fan control method

Abstract

The invention relates to a safe and energy-saving fan control method. The safe and energy-saving fan control method comprises the steps that whether human body infrared rays exist in the current environment is detected and judged, and if human body rays exist, the following steps that the air velocity and temperature of the current environment are obtained, the operation state of a fan motor is controlled according to the air velocity and temperature of the current environment, whether use risk exists or not is detected and judged, if the use risk exists, the fan motor is controlled to stop, and an alarm is given, and if no use risk exists, the fan motor keeps the current state are executed; and, if no human body ray exists, the fan motor is controlled to stop operation. In this way, through human body infrared detection and use risk detection, according to the air velocity and temperature, the work state of the fan motor is reasonably controlled, the comfortable feeling of the user environment is guaranteed, the user experience is optimized, energy is saved, and the use safety of the fan is improved.

Description

Technical field [0001] The present invention relates to the technical field of fan control, in particular to a safe and energy-saving control method for fans. Background technique [0002] The fan is a device that generates airflow through electric drive. The motor inside it drives the fan blades to rotate after being energized, and converts electrical energy into wind energy to achieve the effect of generating wind and cooling. [0003] Existing fans generally have three control gear positions, which are respectively used to control the rotation speed of the motor to generate different wind speeds to meet the application in life or industry. In the process of use, when the user feels the current environment is stuffy, he will start the fan himself, and select the amount of air blown by the fan through the control switch on the fan, thereby achieving the purpose of cooling. After using for a period of time, if the user feels that the current environment temperature is low and caus...

AI Technical Summary

Problems solved by technology

[0004] In this way, no matter whether the user needs to start the fan or stop the fan, it must be executed by the user himself, which will have a certain impact on the user experience, and the user must feel uncomfortable before changing the running state of the fan. can adversely affect the user experience

At the same time, after the user turns on the fan but does not need to use it, the fan is still in the starting state, which will cause a certain waste of resources, which is not conducive to environmental protection and energy saving

[0005] In addition, during the use of the fan, sometimes human hands and fingers accidentally extend into the blades from the grille of the fan, causing the hands and fingers to be stirred by the blades, causing safety accidents, especially for those with weak safety awareness For children or certain groups of people, the chances of causing safety accidents are greater

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