Data transmission education demonstration system and method based on sound card
The invention belongs to the field of education demonstration, and provides a data transmission education demonstration system and method based on a sound card. The demonstration system comprises a sending device and a receiving device. The sending device comprises an information silence collection...
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Main Authors | , , , |
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Format | Patent |
Language | Chinese English |
Published |
23.04.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The invention belongs to the field of education demonstration, and provides a data transmission education demonstration system and method based on a sound card. The demonstration system comprises a sending device and a receiving device. The sending device comprises an information silence collection module which is used for collecting demonstration information; an information encryption coding module which is used for encrypting the demonstration information; and an information modulation sending module which is used for modulating the encrypted information blocks to a set frequency, and sending audio signals corresponding to the same modulated data blocks to an external environment for multiple times through a sound card and audio equipment. The receiving equipment comprises a sound wave monitoring and receiving module which is used for monitoring a preset matching frequency band audio signal; an information demodulation module which is used for demodulating the monitored audio signal; and an information decr |
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Bibliography: | Application Number: CN202011586272 |