Safe and energy-saving fan control method

Abstract

The invention relates to a fan safety and energy-saving control method: 1) Detecting and judging whether there are human body infrared rays in the current environment, and if there are human body infrared rays, the following steps are performed: obtaining the air velocity and temperature of the current environment; controlling the fan according to the air velocity and temperature of the current environment The running state of the motor; detect and judge whether there is a danger of use, if there is, the fan motor will be controlled to stop and an alarm will be issued, if not, the fan motor will maintain the current state. And, if there is no human infrared ray, the fan motor is controlled to stop running. In this way, the working state of the fan motor can be reasonably controlled through infrared detection of the human body, use hazard detection, air flow rate and temperature, so as to ensure the comfort of the user's environment, optimize the user experience, save energy and improve the safety of the use of the fan.

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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