VHF maritime safety communication system based on voice identification and caption display

A voice recognition and maritime safety technology, applied in voice recognition, voice analysis, image communication, etc., can solve problems such as single voice signal in communication content, incompletely heard voice information, endangering maritime traffic safety, etc., to ensure maritime traffic safety , good user experience, and the effect of improving accuracy

Inactive Publication Date: 2020-02-14
DALIAN MARITIME UNIVERSITY
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] At present, the communication between ships on the sea surface and between ships and shores is mainly realized through the voice communication of VHF communication equipment. The communication content is a single voice signal. Due to the transient nature of voice information and the presence of certain noises in the maritime navigation environment Interference, the user is prone to not fully hear the voice information when using the existing VHF equipment to talk, which is extremely unfavorable for the need to make corresponding ship collision avoidance scenarios in a timely manner, endangering the safety of maritime traffic

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  • VHF maritime safety communication system based on voice identification and caption display
  • VHF maritime safety communication system based on voice identification and caption display
  • VHF maritime safety communication system based on voice identification and caption display

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Embodiment Construction

[0024] In order to make the technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0025] Such as figure 1 A VHF maritime safety communication system based on speech recognition and subtitle display includes: a loudspeaker, a speech preprocessing unit, a storage unit, a speech recognition unit and a display unit. The loudspeaker is used to receive the audio information played on the ship at sea, and perform denoising and howling elimination processing on the voice. The speech pre-processing unit performs frame division processing on the received speech information and then performs windowing processing, and then performs fast Fourier transform and buffer processing on the speech signal after windowing. The storage module stores the buffered voice in real time, and the voi...

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Abstract

The invention discloses a VHF maritime safety communication system based on voice identification and caption display. The system comprises a loudspeaker; a voice preprocessing unit for performing windowing processing on received voice information after performing framing processing, and then performing fast Fourier transform and buffering processing on the windowed voice signal; a storage unit forreceiving the processed voice information transmitted by the voice preprocessing unit and storing the voice in real time; and a voice identification unit for receiving the processed voice informationtransmitted by the voice preprocessing unit, wherein the voice identification unit transmits the text to a display unit to be replayed. The system can convert the currently played audio into the corresponding text through the voice identification technology, and the text can be displayed on a caption displays screen in the caption manner, so that a user can acquire the text information when receiving the audio information, and the content of the maritime communication is enriched.

Description

technical field [0001] The invention relates to the technical field of maritime communication, in particular to a VHF maritime safety communication system based on speech recognition and subtitle display. Background technique [0002] Very high frequency (VHF) communication is an important part of maritime radio communication. At present, the VHF wireless telephones equipped on GMDSS marine ships generally only have wireless telephone and DSC communication functions. It is a two-way communication system, and the transmission frequency band is 156.025MHz to 157.425MHz. , the receiving communication frequency is 156.025MHz to 162.025MHz, and the communication content is voice signal. [0003] At present, the communication between ships on the sea surface and between ships and shores is mainly realized through the voice communication of VHF communication equipment. The communication content is a single voice signal. Due to the transient nature of voice information and the prese...

Claims

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Application Information

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IPC IPC(8): G10L15/22G10L15/02G10L25/45G10L21/0208G10L25/21H04N5/278
CPCG10L15/02G10L15/22G10L21/0208G10L25/21G10L25/45H04N5/278
Inventor 林彬俞雁韬崔昆涛
Owner DALIAN MARITIME UNIVERSITY
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