Learning method for infrared signals
A technology of infrared signals and learning methods, applied in signal transmission systems, non-electrical signal transmission systems, instruments, etc., can solve the problem of not being able to know the carrier frequency
Active Publication Date: 2013-11-20
TIANJIA SHANGHAI INFO TECH
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Problems solved by technology
[0007] When the existing infrared learning remote control learns the infrared signal in the form of waveform copy, it directly filters out the carrier wave and only learns the infrared control code, so the carrier frequency cannot be known
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[0033] see figure 2 , which is a learning infrared remote control, including:
[0034] ——The infrared transceiver module 10 receives infrared signals in the environment and outputs the received infrared signals to the processor 20 .
[0035] ——The processor 20 obtains the level state and carrier frequency of the infrared control code through learning from the received infrared signal.
[0036] This learning remote control can be realized by smart electronic devices (such as mobile phones). The infrared transceiver module 10 can be integrated into an intelligent electronic device, and the processor 20 can be concurrently served by the CPU of the intelligent electronic device.
[0037] see image 3 , the learning method of the above-mentioned learning type infrared remote controller to the infrared signal comprises the following steps:
[0038] Step 1: The infrared transceiver module 10 receives the infrared signal Outside Carry Pulse In in the environment, and outputs the ...
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The invention discloses a learning method for infrared signals. The learning method comprises the following steps of: step 1, receiving the infrared signals in an environment by an infrared receiving / transmitting module and outputting the received infrared signals to a processor; step 2, learning the received infrared signals by the processor to obtain a level state and a carrier frequency of an infrared control code; or the learning method comprises the following steps of: step 1, receiving the infrared signals in the environment by the infrared receiving / transmitting module and outputting the received infrared signals to the processor and a carrier filtering module; step 2, learning the received infrared signals by the processor to obtain the learned carrier frequency; step 3, converting the received infrared signals into an infrared control code by the carrier filtering module and outputting the infrared control code to the processor; and step 4, learning the level state of the infrared control code from the infrared control code converted by the carrier filtering module through the processor, wherein the sequences of the step 2 and the step 3 can be mutually exchanged. According to the learning method disclosed by the invention, the infrared control code and the carrier frequency can be obtained at the same time, so that the learning method is particularly suitable for a learning type infrared remote controller.
Description
technical field [0001] The present application relates to a learning method for infrared signals of a learning infrared remote controller. Background technique [0002] Infrared remote control (IR Remote Control) is a remote control device that uses infrared signals with a wavelength between 0.76 and 1.5 μm to transmit control signals. It is widely used in industrial control and home appliances. The infrared signal is converted from an electrical signal, for example, the presence and absence of infrared light respectively represent the high and low levels of the electrical signal. The electrical signal is a modulated signal formed by modulating an infrared control code onto a carrier. [0003] Infrared control codes usually include: boot code, system code, data code, system code complement, data code complement, synchronization code, etc. Among them, the system code and its complement, the data code and its complement are usually used to represent the remote control comman...
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IPC IPC(8): G08C23/04
Inventor 张宇科吴曙斌王剑峰
Owner TIANJIA SHANGHAI INFO TECH