Title :
A Low Rate Speech Transmission System Based On Controller Area Network
Author :
Cui Lian-cheng ; Li Yan-wei ; Zhu Wei-wei ; Zhou Xing ; Wang Man-yi
Author_Institution :
Power-supply Dept., Longkou Ming Group Co. Ltd., Longkou, China
Abstract :
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.
Keywords :
controller area networks; field buses; speech processing; CAN-bus; MBE coding compression; controller area network; low rate speech transmission system; multi-band excitation; Bit rate; Communication system control; Control systems; Data communication; Electronic mail; Frequency; Instruments; Speech coding; Switches; Velocity measurement;
Conference_Titel :
Management and Service Science, 2009. MASS '09. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4638-4
Electronic_ISBN :
978-1-4244-4639-1
DOI :
10.1109/ICMSS.2009.5304249
