Multi-carrier air-conditioning infrared signal self-learning controller and method thereof

Abstract

The invention relates to a multi-carrier air-conditioning infrared signal self-learning controller and a method of the controller. The multi-carrier air-conditioning infrared signal self-learning controller comprises an MCU (Microprogrammed Control Unit) module, a plurality of infrared integrated receiving tubes, four input and gates, an EEPROM (Electronically Erasable Programmable Read-Only Memory) storage unit, a serial port communication unit, a key unit and an infrared transmission unit, wherein the four input and gates, the EEPROM storage unit, the serial port communication unit, the key unit and the infrared transmission unit are all connected with the MCU module; and each infrared integrated receiving tube is respectively connected with the four input and gates and the MCU module. The controller has the beneficial effects that the controller is in a sleeping state at ordinary times and is less in power consumption; infrared remote control signals can cause the external interrupt of a main control microprocessor, so that the main control microprocessor is in a self-learning state; and the infrared integrated receiving tubes are integrated, the crosstalk demodulation of a plurality of carrier encoded signals is realized, and learned carrier frequency bands are accurately distinguished, memorized and duplicated to achieve the purpose of remotely learning the multi-carrier air-conditioning infrared remote control signals.

Description

technical field [0001] The invention relates to a multi-carrier air conditioner infrared signal self-learning controller and a method thereof. Background technique [0002] Infrared remote control is a device that users can operate and control various electrical appliances from a distance of several meters or even tens of meters. It sends out different coded signals and responds to infrared signals modulated by the carrier. Infrared remote controllers are widely used in air-conditioning products, but the infrared control signal format of each air-conditioning product is not uniform, and the remote controllers are not compatible with each other. As a result, the number of remote controllers in living and office spaces is also increasing, and they are often confused when used. [0003] Nowadays, smart remote controllers with infrared signal learning function are constantly emerging, which can replace multiple remote controllers to control multiple electrical appliances. Howe...

AI Technical Summary

Problems solved by technology

However, the infrared signal carrier frequency band learned by most learning remote controls is affected by hardware, and has no learning ability for other frequency bands.

Some infrared learning remote controls use infrared photodiodes as photosensitive devices, which can demodulate signals within a certain frequency range, but do not have signal conditioning amplifier circuits, and can only function within 10 cm, requiring high learning operations. The accuracy is poor, and there is a disadvantage of brand learning many times

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