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Coding and decoding method applicable to remote controller

A technology of a wireless remote control and a decoding method, which is applied in the field of consumer electronics and intelligent remote control equipment, and can solve problems such as the format of the code or the processing method of the code that cannot be easily and conveniently used, storage resources cannot be efficiently used, and the implementation method is complicated. Achieve the effects of shortening the development cycle, simple use, and reducing product costs

Inactive Publication Date: 2010-04-28
IPGOAL MICROELECTRONICS (SICHUAN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the implementation method of encoding and decoding is relatively complicated and takes up a large storage space.
[0005] Generally speaking, the current encoding and decoding methods are not convenient for encoding due to the different waveforms of the codes. The format of the code or the processing method of the code cannot be easily used, and the storage resources cannot be used efficiently.

Method used

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  • Coding and decoding method applicable to remote controller
  • Coding and decoding method applicable to remote controller
  • Coding and decoding method applicable to remote controller

Examples

Experimental program
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Effect test

Embodiment 1

[0023] An encoding and decoding method applied to a wireless remote control. First, the control information is encoded in the transmitting device, and the control information is expressed in binary form, and each bit of the control information is represented by a code string composed of 0 codes and 1 codes. , forming an information code; then the information code is transmitted by the carrier transmitting device, and the carrier transmitting device is controlled to transmit corresponding radio waves according to each code bit of the information code. In the encoding process, code 0 and code 1 used to represent control information The period is between 100uS-2000uS, that is, the frequency range is 500hz-10KHZ; among them, the low-level pulse width of 0 code is the same as the low-level pulse width of 1 code, and the high-level pulse width of 0 code is wider than the low-level pulse width. The flat pulse width is 50uS long, and the high-level pulse width of 1 code is twice the lo...

Embodiment 2

[0030] An encoding and decoding method applied to a wireless remote control. First, the control information is encoded in the transmitting device, and the control information is expressed in binary form, and each bit of the control information is represented by a code string composed of 0 codes and 1 codes. , forming an information code; then the information code is transmitted by the carrier transmitting device, and the carrier transmitting device is controlled to transmit corresponding radio waves according to each code bit of the information code. In the encoding process, code 0 and code 1 used to represent control information The cycle is between 100uS-2000uS, that is, the frequency range is 500hz-10KHZ; Among them, the high-level pulse width of 0 code is the same as the high-level pulse width of 1 code, and the low-level pulse width of 0 code is wider than the high-level pulse width. The flat pulse width is 50uS long, and the low-level pulse width of 1 code is twice the hi...

Embodiment 3

[0037] The operation process is as follows:

[0038] 8052 microcontroller-based control module (coding)---433M transmitting module (carrier transmitting device)-----------carrier transmission-----------433M Receiving module (carrier receiving device) ------ 8052 single-chip microcomputer is the controlled module (decoding) as the main control

[0039] The implementation process is described as follows:

[0040] First, use software to encode the control information in the control module controlled by the 8052 single-chip microcomputer, and express the information to be transmitted to the controlled module in binary form. According to each bit of binary 0 or 1, use image 3 0 code or 1 code to represent, so that the information encoding is realized.

[0041]After encoding the information, transmit the information code through the 433M transmitting module, and control the 433M transmitting module to transmit 433MHZ radio waves according to each code bit of the information code,...

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Abstract

The invention discloses a coding and decoding method applicable to remote controller. Coding is carried out on a control message in a transmitting device, the bits of the control message are expressed by a coded string formed by 0 and 1 codes, then message code is transmitted by the transmitting device, and a carrier transmitting device is controlled to transmit corresponding radio wave according to the bits of the message code; wherein the period for expressing 0 and 1 codes of the control message all ranges from 100us to 2000us, the pulse widths of the front part of levels of 0 and 1 codes are the same, the pulse width of the rear part of level of 0 code is 50us widen than the pulse width of the front part of level of 0 code, and the pulse width of the rear part of level of 1 code is twice of pulse width of the front part of level of 1 code. The coding of the invention adopts methods forming codes containing common wave form, coding is simple and convenient; and the decoding method of the invention is simple in utilization and saves storing space, by adopting the invention, product development period can be reduced and product cost can be reduced.

Description

technical field [0001] The invention relates to the field of consumer electronics and intelligent remote control equipment, in particular to an encoding and decoding method applied to a wireless remote control. Background technique [0002] In some environments, equipment can only be controlled or monitored through wireless transmission, so it is necessary to transmit relevant wireless information, and it is necessary to encode and decode the information. [0003] At present, there are some encoding methods applied to the remote control. The high and low levels use different pulse width waveforms to distinguish the encoding format of 0 and 1, and there are also encoding formats that use inverse codes to distinguish 0 and 1. These encoding methods are for 0 code The encoding method for distinguishing the waveforms of different pulse widths used by both the 1 code and the 1 code is not only complicated in encoding, but also due to the limitation of this waveform encoding forma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C17/02
Inventor 何军涛
Owner IPGOAL MICROELECTRONICS (SICHUAN) CO LTD
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