Three-level signal amplified power voltage stabilizing type automatic control air changing system

Abstract

The invention discloses a three-level signal amplified power voltage stabilizing type automatic control air changing system. The three-level signal amplified power voltage stabilizing type automatic control air changing system is characterized by being mainly composed of a programmable controller, a voltage stabilization rectifier circuit, an A / D converter, a memorizer, an air changing control circuit, a power source, a three-level signal amplifier circuit, an air quality sensor and an air changing device, wherein the voltage stabilization rectifier circuit, the A / D converter, the memorizer and the air changing control circuit are connected with the programmable controller, the power source is connected with the voltage stabilization rectifier circuit, the output end of the three-level signal amplifier circuit is connected with the A / D converter, the air quality sensor is connected with the input end of the three-level signal amplifier circuit, and the air changing device is connected with the air changing control circuit. The three-level signal amplified power voltage stabilizing type automatic control air changing system is simple in structure and low in cost, the programmable controller can judge whether the air changing device needs to be started or not according to indoor air quality signals collected by the air quality sensor, and therefore the air changing device can stop working when the indoor air quality is good, the purpose of automatic air changing according to the environment peculiar smell production situation can be achieved, and the three-level signal amplified power voltage stabilizing type automatic control air changing system is suitable for application and popularization.

Description

technical field [0001] The invention relates to a ventilation system, in particular to a three-stage signal amplification power supply stabilized voltage automatic control ventilation system. Background technique [0002] At present, due to the rapid increase of urban population and the needs of urban development, urban buildings are becoming larger and larger. These huge buildings will be divided into multiple independent small spaces, and many of these independent small spaces exist A certain degree of closure cannot ensure smooth circulation with the outside atmosphere, so the odor generated in these spaces is not easy to dissipate automatically. At present, ventilation equipment such as air conditioners or exhaust fans is usually used for ventilation, so as to disperse peculiar smells into the atmosphere and introduce fresh air from the outside. However, most of the ventilation equipment is usually opened as soon as people enter the room, or wait until people smell a pe...

AI Technical Summary

Problems solved by technology

Odor gas is often not conducive to people's health. Waiting to smell the odor before ventilating means that the human body has inhaled the odor gas, and turning on the ventilation equipment will cause great waste. On the one hand, the ventilation equipment needs power consumption, and on the other hand On the one hand, keeping the ventilation equipment open all the time will also cause wear and tear on the equipment

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