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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Bibliographic Details
Main Authors WANG ZHICHAO, MIAO GONGXUN, QU ZHIFENG, DUAN WENFANG
Format Patent
LanguageChinese
English
Published 23.04.2021
Subjects
ADVERTISING
APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE
CALCULATING
COMPUTING
COUNTING
CRYPTOGRAPHY
DIAGRAMS
DISPLAY
EDUCATION
EDUCATIONAL OR DEMONSTRATION APPLIANCES
ELECTRIC DIGITAL DATA PROCESSING
GLOBES
PHYSICS
PLANETARIA
SEALS
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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
Bibliography:Application Number: CN202011586272