Acoustic communication method, terminal and server

Abstract

The invention relates to an acoustic communication method and device, and belongs to the technical field of wireless communication. The method comprises the steps of: determining a first audio feature and a first target frequency point set corresponding to the current environment of a sending terminal; sending a first data transmission request to a server, wherein the first data transmission request includes the first audio feature and the first target frequency point set; modulating data to be sent by utilizing the first target frequency point set to generate an acoustic signal; and sending the acoustic signal. By means of the acoustic communication method and device disclosed by the invention, handshaking between the sending terminal and a receiving terminal before acoustic communication can be realized; therefore, the current available optimal frequency point set can be determined; interference noise in acoustic communication can be reduced; and the acoustic communication quality can be improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an acoustic wave communication method, a terminal and a server. Background technique [0002] Acoustic communication refers to a communication method that uses acoustic signals for data transmission. During communication, the data sending terminal uses a single-frequency sound signal or a multi-frequency mixed sound signal to encode and modulate the data, and then plays the modulated sound signal, while the data receiving terminal, after receiving the sound signal, recognizes the frequency modulated with data sound signal, and then demodulate the frequency sound signal modulated with data, and restore the sound wave signal to data. [0003] Most of the current acoustic communication uses a fixed frequency point group for data communication, that is, the sending terminal and the receiving terminal use pre-agreed frequency points for data modulation and demodulation...

AI Technical Summary

Problems solved by technology

[0004] However, since sound waves are mechanical waves, their bandwidth is relatively narrow, and the bandwidth of sound wave signals that can be processed by ordinary sending terminals and receiving terminals is even more limited. Under the condition of limited bandwidth, there are many sources of sound interference, and sound wave communication is easily affected

And in different environments, the frequency points where each sound wave signal is interfered are also different. If a fixed frequency point group is used for sound wave communication, the sound waves are more likely to be interfered due to the difference in the environment, which may cause the receiving terminal to fail to receive to the correct data, affecting the quality of the acoustic communication

Images