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Integrated network of Profibus-DP and IEEE 802.11 wireless LAN with hard real-time requirement

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2 Author(s)
Kyung Chang Lee ; Sch of Mech. Eng., Pusan Nat. Univ., South Korea ; Suk Lee

This paper focuses on a method to connect mobile devices such as mobile robots and automated guided vehicles (AGV) to a fieldbus. In this paper, the IEEE 802.11 wireless LAN is used to extend a Profibus-DP network for the mobile devices. In order to integrate these two networks, a protocol converter is developed that consists of two processes-master process of Profibus-DP and virtual master process of IEEE 802.11-and a transmission buffer. Furthermore, a virtual polling algorithm is developed at the protocol converter in order to satisfy real-time requirements on data communication

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Industrial Electronics, 2001. Proceedings. ISIE 2001. IEEE International Symposium on  (Volume:3 )

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