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A Scalable and Efficient Approach for Obtaining Measurements in CAN-Based Control Systems
Ref: CISTER-TR-140904       Publication Date: May 2008

A Scalable and Efficient Approach for Obtaining Measurements in CAN-Based Control Systems

Ref: CISTER-TR-140904       Publication Date: May 2008

Abstract:
The availability of small inexpensive sensor elements enables the employment of large wired or wireless sensor networks for feeding control systems. Unfortunately, the need to transmit a large number of sensor measurements over a network negatively affects the timing parameters of the control loop. This paper presents a solution to this problem by representing sensor measurements with an approximate representation-an interpolation of sensor measurements as a function of space coordinates. A priority-based medium access control (MAC) protocol is used to select the sensor messages with high information content. Thus, the information from a large number of sensor measurements is conveyed within a few messages. This approach greatly reduces the time for obtaining a snapshot of the environment state and therefore supports the real-time requirements of feedback control loops.

Authors:
Björn Andersson
,
Nuno Pereira
,
Wilfried Elmenreich
,
Eduardo Tovar
,
Filipe Pacheco
,
Nuno Cruz


Published in IEEE Transactions on Industrial Informatics, IEEE, Volume 4, Issue 2, pp 80-91.

DOI:10.1109/TII.2008.919709.



Record Date: 10, Sep, 2014