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A Low Rate Speech Transmission System Based On Controller Area Network

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5 Author(s)
Cui Lian-cheng ; Power-supply Dept., Longkou Ming Group Co. Ltd., Longkou, China ; Li Yan-wei ; Zhu Wei-wei ; Zhou Xing
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A speech transmission system was designed to conquer the restriction of analog communication system in coal mine. After compressed by multi-band excitation, the voice data was transmitted on CAN (controller area network)-bus to achieve long transmission distance at low speed. Compared simulation data and experimental data, it got the result that CAN-bus can bare the speech data after MBE coding compression, and the composing of system voice is perfect and understandable, with the distortion of voice signal les15%, voice intensity les90 dB after magnified, and suitable for voice transmission in coal mine.

Published in:

Management and Service Science, 2009. MASS '09. International Conference on

Date of Conference:

20-22 Sept. 2009

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