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Infrared remote control system transmission end and realization method thereof

A technology of infrared remote control and its implementation method, which is applied in the field of infrared remote control system, can solve problems such as impossibility of implementation and limited internal space, and achieve the effect of simple implementation and saving internal space

Active Publication Date: 2013-06-05
TIANJIA SHANGHAI INFO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is often impossible to implement special-purpose chips that realize the functions of instruction encoding circuits and modulation circuits in intelligent electronic devices due to limited internal space.

Method used

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  • Infrared remote control system transmission end and realization method thereof
  • Infrared remote control system transmission end and realization method thereof
  • Infrared remote control system transmission end and realization method thereof

Examples

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Embodiment Construction

[0041] see Figure 5 , which is an embodiment of the transmitter of the infrared remote control system of the present application, which includes:

[0042] ——Man-machine interface (such as keys of intelligent electronic devices, touch screen, etc.), through which users input operation instructions. ——The main chip (such as the baseband chip of the intelligent electronic device, CPU, etc.), receives the operation instructions transmitted by the man-machine interface, generates the first modulation signal and outputs it to an asynchronous serial communication port (UART, Universal Asynchronous Receiver / Transmitter) .

[0043] ——Asynchronous serial communication port (built-in in intelligent electronic equipment), which receives the first modulation signal from the main chip and transmits it to the infrared light-emitting diode. During the transmission process, the first modulation signal is transformed into a second modulation signal.

[0044] ——Infrared light-emitting diodes ...

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PUM

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Abstract

The invention discloses an infrared remote control system transmission end comprising a human-machine interface used for receiving operation instructions; a main chip used for generating a first modulation signal according to the operation instruction; an asynchronous serial communication port used for receiving and transmitting the first modulation signal, the first modulation signal being transformed into a second modulation signal during the transmission process; and an infrared light-emitting diode used for converting the second modulation signal into infrared light signal and for transmitting the infrared light signal. The invention also discloses a realization method of the transmission end. With the method provided by the invention, a portable intelligent electronic device can be used as an infrared remote control system transmission end, wherein no additional special-purposed integrated circuit is needed, and main chip additional I / O pins are not occupied. The transmission end provided by the invention can be compatible with various existing receiver ends.

Description

technical field [0001] This application relates to an infrared remote control system, in particular to the transmitting end thereof. Background technique [0002] Infrared remote control technology is widely used in the fields of industrial control and home appliances, typical applications such as remote controls for TVs and air conditioners. [0003] A general infrared remote control system includes at least two parts, the transmitting end and the receiving end. [0004] see figure 1 , the transmitter of the infrared remote control system includes: [0005] ——The human-machine interface, which can be a key or joystick in the form of hardware, or a software interface, etc., is used to receive the operation instructions issued by the user. [0006] ——Instruction encoding circuit, which encodes the operation instructions transmitted by the man-machine interface to form infrared control codes. [0007] ——The modulating circuit modulates the infrared control code onto the ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C23/04H04B10/50
Inventor 王剑峰吴曙斌奉松
Owner TIANJIA SHANGHAI INFO TECH
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