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Coding and decoding method applicable to remote controller

A technology of wireless remote control and decoding method, which is applied in the direction of instruments, signal transmission systems, etc., and can solve the problems that the format of the code or the processing method of the code cannot be easily and conveniently used, the 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: 2012-02-29
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

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Effect test

Embodiment 1

[0025] An encoding and decoding method applied to wireless remote controllers. Firstly, control information is encoded in the transmitting device, and the control information is expressed in binary form. Each bit of the control information is expressed by a code string composed of 0 code and 1 code. , Forming the information code; then the information code is transmitted through the carrier transmitting device, and the carrier transmitting device is controlled to transmit the corresponding radio wave according to each code bit of the information code. In the encoding process, the 0 code and the 1 code used to represent the control information The period is between 100uS-2000uS, that is, the frequency range is 500HZ-10KHZ; among them, the low-level pulse width of code 0 is the same as the low-level pulse width of code 1, and the high-level pulse width of code 0 is more than 0 code The low-level pulse width is 50uS, and the high-level pulse width of code 1 is twice the high-level ...

Embodiment 2

[0032] An encoding and decoding method applied to wireless remote controllers. Firstly, control information is encoded in the transmitting device, and the control information is expressed in binary form. Each bit of the control information is expressed by a code string composed of 0 code and 1 code. , Forming the information code; then the information code is transmitted through the carrier transmitting device, and the carrier transmitting device is controlled to transmit the corresponding radio wave according to each code bit of the information code. In the encoding process, the 0 code and the 1 code used to represent the control information The period is between 100uS-2000uS, that is, the frequency range is 500HZ-10KHZ; among them, the high-level pulse width of code 0 is the same as the high-level pulse width of code 1, and the low-level pulse width of code 0 is more than 0 code The high-level pulse width is 50uS, and the low-level pulse width of code 1 is twice the low-level ...

Embodiment 3

[0039] The operation process is as follows:

[0040] 8052 single-chip microcomputer control module (code)-433M transmitter module (carrier transmission equipment) --------carrier transmission ------- 433M Receiving module (carrier receiving equipment)------8052 single-chip microcomputer is the controlled module (decoding)

[0041] The implementation process is described as follows:

[0042] First, use software to encode the control information in the control module of the 8052 single-chip microcomputer. The information to be transmitted to the controlled module is expressed in binary form. According to each bit 0 or 1, respectively, image 3 The 0 code or 1 code to represent, so that the information is encoded.

[0043] After the information is coded, the information code is transmitted through the 433M transmitting module, and the 433M transmitting module is controlled to transmit 433MHZ radio waves according to each code position of the information code. Because the 0 code and the ...

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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 accordingto 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, the only way to control or monitor the device is through wireless transmission. In this way, relevant wireless information needs to be transmitted, and the information must be encoded and decoded. [0003] There are currently some coding methods applied to remote control. Both high and low levels use different pulse width waveforms to distinguish the coding format of 0 and 1. There are also coding formats that use the inverse code to distinguish 0 and 1. These coding methods are for 0 code. The encoding method that uses different pulse width waveforms to distinguish between code and 1 code is not only complicated in encoding, but also due to the limitation of this waveform encoding format, so the received waveform must be s...

Claims

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Application Information

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