Design and Actualization of Intrinsically Safe Voice Warning System for Mine

Abstract:

According to the actual situation of coal mine,a voice alarming system which can meet with remote communication is designed. The system bases on CANopen protocol and can remotely transfer voice data through CAN bus.Furthermore it is of MP3 play function.Testing results shows that the voice alarming system can transfer voice data at a very low rate of 2.4kbit/s with distortion of voice signal being less than 15% and sound intensity being more than 90 db.The system is suitable for application in the underground due to its high reliability and low energy consumption.

• Periodical: Applied Mechanics and Materials (Volumes 397-400)
• Pages: 2056-2059
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.397-400.2056
• Online since: September 2013
• Authors: Li Li Gao*, Zhao Xue Luan, Yan Fang Liu
• Keywords: CANopen Protocol, Mine Intrinsically Safe, MP3, Voice Alarming

References

[1] Zhengjun Li, in: Fieldbus and its application technology, edited by Machinery Industry Publishers(2006).

[2] Enjie Ding, Zheng Fang Zhao, Wei Zhen Shan. Coal science and technology, Vol. 3(2008).

[3] Yanwen Ni, Xiangdong Jin. Electro-acoustic technology, Vol. 1(2005), pp.37-39.

[4] Leibo Yao, Yanzhang. Electro-acoustic technology, Vol. 11(2007), pp.32-34.

[5] H . Boterenbrood, in: CANopen high- level protocol for CAN bus , edited by NIKHEF Company( 2000).