The video on time transmission is one of the visualized key technologies for the remote control of the mining and excavation equipments in underground mine. According to the underground mine production features, a new wireless on time video transmission system framework of the mine roadheader was provided and realized The system would apply the DaVinci platform and chip TMS320DM6446 for the video collection and compression and could realize the H. 264 standard video code. With the 802. 11 g agreement applied to the wireless transmission method with a visual transmission distance of 50 ～ 100 m on 2. 4 GHz frequency and with a directional antenna, the anti-interference and reliability of the system transmission channel could be improved. The measured results showed that the system could realize the on time video monitoring and measuring during the operation process and status of the mine roadheader.%视频实时传输是煤矿井下采掘装备遥控可视化的关键技术之一,针对煤矿井下生产的特点,提出并实现了一种新的掘进机无线实时视频传输系统构架.该系统采用DaVinci平台芯片TMS320DM6446进行视频采集和压缩,实现H.264标准的视频编码;并应用802.11 g协议、2.4GHz频段上定向天线视距(50～100 m)无线传输方式,提高系统传输信道的抗干扰和可靠性.测试结果表明该系统能够实现掘进机运行过程和状态的实时视频监测.
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