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YaoLi Wang
Taiyuan University of Technology

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A Network Disk Device Based on Web Accessing QunFang Yuan; Wenxia Di; YaoLi Wang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

The future personal and home demand of big data helped fuel an explosion of development in network disk device market. Compared to a traditional USB hard drive, it separated the user from the hard disk, enjoyed the advantage of accessing from anywhere for unspecific user and easy operation and easy expansion. The paper established the remote access to hard drives via browser with Xilinx's XUPV5 LX110T FPGA development board. The system mounted an ATA host controller IP core and connected it to the network with RJ45. By porting PetaLinux operating system to the MicroBlaze embedded processor of FPGA, an independent FAT32 file system module was added, the users could establish the remote access to hard drives with specific CGI programs through the WEB browser. It was tested that Personal/Home Network Disk can meet the standards of basic file operation. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5472
Real-time Implementation of a xAVS Video Decoder Qing Chang; Xin Liu; YaoLi Wang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

AVS video decoder consumes a huge number of computation, so real-time implementation of an AVS decoder has some challenging on x86 computing platform. This article describes a xAVS open source project to solve this problem. First of all, the reason for the low efficiency of the code of the existing AVS video decoder open source reference software RM52J_r1 is analyzed according to the description of AVS key technologies and decoding principles in the official documentation. Then according to the main problems of the reference software, re-design the optimized xAVS decoder architecture, and real-time property significantly improved with C code. Finally, use the x86 platform multimedia instruction sets to further optimize xAVS semantic processor. The experimental results show that, under the precondition of ensuring the quality of decoding, the decoding speed of the xAVS decoder for D1 has increased more than 14 times, to fully meet the needs of real-time decoding. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5473
Co-Authors Qing Chang QunFang Yuan Wenxia Di Xin Liu