ZHOU Renyan, LIU Leibo, YIN Shouyi, LUO Ao, CHEN Xinkai, WEI Shaojun. A VLSI Architecture for the Node of Wireless Image Sensor Network[J]. Chinese Journal of Electronics, 2011, 20(4): 590-596.
Citation: ZHOU Renyan, LIU Leibo, YIN Shouyi, LUO Ao, CHEN Xinkai, WEI Shaojun. A VLSI Architecture for the Node of Wireless Image Sensor Network[J]. Chinese Journal of Electronics, 2011, 20(4): 590-596.

A VLSI Architecture for the Node of Wireless Image Sensor Network

  • Received Date: 2010-07-01
  • Rev Recd Date: 2011-02-01
  • Publish Date: 2011-10-25
  • This paper proposes a novel design of VLSI architecture for the node of wireless image sensor network. This architecture aims at the SoC (System on a chip) implementation and is composed of a general purpose embedded processor and several dedicated hardware accelerators for image processing and wireless communication. The hardware implemented Image processing unit (IPU) adopts an innovative image processing approach which concludes Bayer Color filter array (CFA) pre-processing and lossless JPEG compressing. The IPU can process 5 frames/s (VGA full color resolution) under a 16 MHz system clock, reaching a 2.6~4.7 bits/pixel compression rate with the PSNR larger than 46.3dB. The hardware implemented Wireless communication unit (WCU) executes computing intensive and timing critical tasks of the IEEE 802.15.4 Media access control (MAC) layer, which can achieve high performance and low power consumption on wireless operations compared of software implementation. Furthermore, low power design and techniques are employed to extend battery life, resulting in 45mW maximum system power consumption when the system is in the full working mode (i.e. processor, IPU and WCU are active simultaneously). The proposed architecture has been proto-typed on an FPGA system and fabricated in 0.18μm CMOS process.
  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (587) PDF downloads(1774) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return