High-efficiency compression algorithm for infrared remote control code library of universal air conditioner

A compression algorithm and infrared remote control technology, applied in code conversion, signal transmission systems, instruments, etc., can solve problems such as code library storage and transmission difficulties

Pending Publication Date: 2020-10-23
JINAN SINE LEAD ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is very difficult to store and transmit the code base

Method used

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  • High-efficiency compression algorithm for infrared remote control code library of universal air conditioner
  • High-efficiency compression algorithm for infrared remote control code library of universal air conditioner
  • High-efficiency compression algorithm for infrared remote control code library of universal air conditioner

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Embodiment Construction

[0052] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0053] Through the analysis of 2000 commonly used air conditioner infrared codes, the following rules can be drawn:

[0054] ①. The modulation method of the remote control code of the air conditioner is the same as that of the remote control of the TV, and there are mainly two types of pulse width modulation (PWM) and pulse position modulation (PPM). It's just that the various pulse width values ​​are different in various protocol formats;

[0055] ②. Air conditioner remote control code is mainly composed of three parts: boot code, data code and end code. The data code generally includes a user code, a key code and a check code. For the same encoding protocol, the user code is the same in all state code groups. The key code also contains information such as power on / off, mode, temperature, wind direction, and wind speed. The key code and check code c...

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Abstract

The invention discloses a high-efficiency compression algorithm for an infrared remote control code library of a universal air conditioner. The method comprises an encoding step and a decoding step, the method of the coding step comprises the following steps: firstly, dividing an infrared code of a to-be-compressed encoding protocol into an encoding region and a waveform region, wherein a basic code group, a control code rule and position information of a control code in the basic code group are stored in the encoding region, and carrier frequency, a modulation mode, a bit sequence, the numberand pulse width of guide codes, 0 code and 1 code high-low level pulse width of data codes and other information of infrared codes are stored in the waveform region. According to the high-efficiencycompression algorithm for the infrared remote control code library of the universal air conditioner, the infrared code block can be restored in an undistorted mode after the control code block obtained through operation of the encoding region is operated through the waveform region, finally, the infrared code waveform is obtained according to the carrier frequency numerical value in the waveform region, and corresponding control over the air conditioner is achieved. A universal infrared code library is established, and conditions are provided for intelligent control of smart home, smart hotels, the Internet of Things and the like.

Description

technical field [0001] The invention relates to a high-efficiency compression algorithm of an infrared remote control code library of a universal air conditioner, more specifically, a high-efficiency compression algorithm of an infrared remote control code library of a universal air conditioner that recovers an infrared code waveform by using a coding area and a waveform area. Background technique [0002] The coding of the infrared remote control codes of home appliances such as TVs and stereos is one key, one code, such as channel, volume, etc., which key is pressed to output the code of which key. The number and types are not many, which creates conditions for learning remote controls. [0003] However, the infrared coding of the remote control of the air conditioner is different from the coding of the remote control of other home appliances. One button carries multiple status information at the same time. Such as power on / off, mode, temperature, wind sweeping mode and w...

Claims

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Application Information

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IPC IPC(8): H03M7/30G08C23/04
CPCG08C23/04H03M7/6005
Inventor 黄程云
Owner JINAN SINE LEAD ELECTRONICS TECH
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