Air-conditioning energy-saving device and method based on active human body pyroelectric infrared induction

Abstract

The invention discloses an energy-saving device and method for an air conditioner based on active human body pyroelectric infrared induction. The energy-saving device comprises an active human body pyroelectric infrared human body sensor, wherein the information of the relative movement of a human-body detecting module of the active human body pyroelectric infrared human body sensor and a person is transmitted to a microprocessor, an electric current detector transmits the air conditioner electric current signals detected to the microprocessor, and the microprocessor controls an alternating current contactor to act through an MOS (Metal Oxide Semiconductor) tube switch circuit according to the received information of the relative movement of the human-body detecting module and the person and the received air conditioner electric current signals, so that the power supply of the air conditioner is further controlled to act. Through the adoption of the energy-saving device disclosed by the invention, when no person stays in a room within 10 or more minutes, a method for automatically cutting power of the air conditioner transiently is adopted to force the air conditioner to stop operation, the phenomenon that the electric energy is wasted as the air conditioner runs when no person stays in the room is avoided, and the purpose of saving energy is achieved.

Description

technical field [0001] The invention relates to the technical field of electronic detection and control, in particular to an air-conditioning energy-saving device and method based on active human body pyroelectric infrared induction. Background technique [0002] Traditional air-conditioning energy-saving equipment and technologies are mainly considered from the energy consumption ratio of the air-conditioning operation, while ignoring the large amount of waste of electric energy caused by the user's usage habits. It takes a lot of investment to take measures to save energy from the operating efficiency of the air conditioner itself, but the energy-saving effect is not obvious. [0003] Due to its structure and working principle, the existing pyroelectric infrared sensor can only detect the infrared radiation of the moving human body. In order to be able to detect the infrared radiation of the stationary human body, it is necessary to use a motor as a power source on this ba...

AI Technical Summary

Problems solved by technology

[0002] Traditional air-conditioning energy-saving equipment and technologies are mainly considered from the energy consumption ratio during air-conditioning operation, while ignoring the large amount of waste of electric energy caused by the user's usage habits

It takes a lot of investment to take measures to save energy from the operating efficiency of the air conditioner itself, but the energy-saving effect is not obvious

[0003] Due to its structure and working principle, the existing pyroelectric infrared sensor can only detect the infrared radiation of the moving human body. In order to be able to detect the infrared radiation of the stationary human body, it is necessary to use a motor as a power source on this basis and use a DC motor to modulate , but this modulation method has the disadvantages that the speed, steering, and rotation angle are not easy to control accurately, which makes them inconvenient to apply in actual production and life.

Pyroelectric infrared sensors currently on the market are not suitable for places where the human body is relatively static, such as libraries, dormitories, classrooms, meeting rooms, and offices.

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