基于FPGA的掘进截割断面无线视频传输系统  

Application of FPGA to Wireless Video Transmission System of Cutting Cross Section in Mine Roadway Heading Face

作　　者：刘畅[1] 王德光[2] 

机构地区：[1]太原科技大学机电工程学院,山西太原030024 [2]煤炭科学研究总院太原研究院,山西太原030006

出　　处：《煤炭科学技术》2009年第12期61-64,68,共5页Coal Science and Technology

摘　　要：为了提高掘进工作面的工作效率与安全水平,研究了掘进截割断面无线视频传输系统的实现方式。该系统利用FPGA(现场可编程门阵列)实现截割断面图像的5/3提升小波内嵌延拓实时压缩算法,针对煤矿井下工作环境,提出了基于FPGA的OFDM调制解调方案,通过使用卷积码提高了系统传输信道的抗干扰能力和可靠性。该系统具有硬件结构体积小、占用硬件资源少、运算速度快等优点,能够满足截割断面无线视频传输的要求。In order to improve the work efficiency and safety level of the mine roadway heading face, a way to achieve a wireless video transmission system of the cutting cross section in the mine roadway heading face was studied. With the FPGA, the system could realize the 5/3 lifting wavelet built-in continuation real-time compression algorithm for the cutting section image. According to the underground working environment, the OFDM modulation-demodulation scheme was proposed based on the FPGA. The convolution code was applied to improve the anti-interference ability and reliability of the system transmission channel. The system had the small hardware structure volume, less hardware resources required, quick calculation speed and others and could meet the requirement of the cutting section wire- less video transmission.

关 键 词：截割断面 FPGA 5/3提升小波 无线视频传输 卷积码 

分 类 号：TD676[矿业工程—矿山机电]