Smoke ventilator intelligent control system based on low-pass filtering application circuit

Abstract

The invention discloses a smoke ventilator intelligent control system based on a low-pass filtering application circuit. The system is mainly composed of a central processor, a power supply, a smog sensor connected with an A / D analog-to-digital converter, a three-end voltage stabilizing filter circuit connected in series between the power supply and the central processor, and the A / D analog-to-digital converter, a motor and an alarm which are connected with the central processor, and is characterized in that the low-pass filtering application circuit is also connected in series between the smog sensor and the A / D analog-to-digital converter; the low-pass filtering application circuit is composed of a signal filter circuit connected with the smog sensor and a signal amplification circuit connected with the signal filter circuit; and the output end of the signal amplification circuit is connected with the low A / D analog-to-digital converter. The intelligent household smoke ventilator control system provided by the invention can accurately acquire an oil smoke concentration value, accurately controls a smoke ventilator to be automatically turned on or turned off, and provides a good living environment for people.

Description

technical field [0001] The invention relates to a control system for a range hood, in particular to an intelligent control system for a range hood based on a low-pass filter amplifier circuit. Background technique [0002] At present, the range hoods produced and sold in China all have key switches for operating the range hoods, but the key switches of such range hoods are prone to problems such as failure and reduced sensitivity during use. Moreover, people often forget to turn off the range hood after use, thus causing a large amount of waste of energy. [0003] Therefore, people are in urgent need of a range hood control system that can control the range hood to automatically open or close according to the concentration of the range hood, so as to meet the requirements of convenience, environmental protection and energy saving. Contents of the invention [0004] The purpose of the present invention is to overcome the defect that the range hood in the prior art cannot b...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that the range hood in the prior art cannot be automatically turned on or off according to the concentration of the oil fume, and the invention provides an intelligent control system for the range hood based on a low-pass filter amplifier circuit

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