Automatic power-off device and automatic power-off method for fluorescent lamp

Abstract

The invention relates to an automatic power-off device and an automatic power-off method for a fluorescent lamp. The method comprises the following steps that: a sensing module is arranged at a position closer to a fluorescent lamp module and used for continuously sensing the light signals of the fluorescent lamp module and the located environment, converting the light signals to electric signals, and defining the electric signals to be to-be-detected signals; a calculation module is used for calculating the signal intensity of the to-be-detected signal of the fluorescent lamp module at a predetermined time after a power supply is turned on, defining the signal intensity to be M0, continuously calculating the signal intensity of the to-be-detected signal after the predetermined time, defining the signal intensity to be M1, calculating the value of subtracting M1 by M0, and defining the value to be D1, that is, M0-M1 = D1; a setting module is used for setting a preset value, and defining the preset value to be D0; a control module is used for controlling the turn-on and turn-off of the power supply of the fluorescent lamp module. The method is characterized in that the calculation module is used for judging the relationship between the D0 and the D1, if the calculation module judges that the D0 is less than the D1, then the control module turns off the power supply.

Description

technical field [0001] The present invention relates to the field of lighting appliances, and more specifically relates to an automatic power-off device for fluorescent lamps and a method thereof that judges whether the fluorescent lamps flicker by sensing the intensity of the light signal emitted by the fluorescent lamps for a period of time and automatically cuts off the power. Background technique [0002] As one of the most commonly used lighting lamps in modern homes, fluorescent lamps are closely related to users' daily work and life. During the use of fluorescent lamps, sometimes due to a series of reasons such as lamp aging, internal circuit damage, starter internal capacitor damage, low temperature environment, etc., a certain lamp or multiple lamps inside the fluorescent lamp will flicker or dim. And other phenomena, causing certain troubles to the user's work or life. [0003] In the case of fluorescent lamp flickering, turn off the power switch, all the internal...

AI Technical Summary

Problems solved by technology

During the use of fluorescent lamps, sometimes due to a series of reasons such as lamp aging, internal circuit damage, starter internal capacitor damage, low temperature environment, etc., a certain lamp or multiple lamps inside the fluorescent lamp will flicker or dim. and other phenomena, causing certain troubles to users' work or life

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