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An Embedded Internet Access Server with Dual-MCU Architecture for Pervasive Computing

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4 Author(s)
Yang Ge ; State Key Lab. of Networking & Switching Technol., Beijing Univ. of Posts & Telecommun., Beijing ; Zhu Xiaomin ; Liao Jianxin ; Huang Hai

In pervasive computing, devices should be adaptive to changes in the need of users and respond to theses dynamical and unpredictable changes. An embedded Internet access server with dual-MCU(microcontroller unit) architecture (DMCUEIAS) is presented in the paper, in the light of the question that the ratio of performance and cost of an embedded Internet access server with single MCU architecture is low and flexibility is weak. One MCU (InetMCU) that uses embedded thin TCP/IP protocol stack communicates with users through Internet, the other MCU (DevMCU) answers for the control of scene devices, the communications between both MCUs are based on the RAC (remote access control) protocol. The system architecture of dual-MCU makes the users and the devices control separate. The users not only watch over and control scene devices, but also download tasks to the scene devices through Internet. It solves the conflict between the low cost single MCU that runs slowly and the high cost single MCU that runs quickly.

Published in:

Communication Technology, 2006. ICCT '06. International Conference on

Date of Conference:

27-30 Nov. 2006