A New Approach for Fault Confinement in CAN-Network

Abstract

Now-a-days automated and interconnected process as in distributed control system requires a very reliable communication. The serial communication protocol called CAN (controller area network) is taken into account and is made more reliable by introducing additional fault confinement mechanisms. Since actual CAN protocol is bus topology based in which multiple components (direct electrical connection between the nodes) are present, its use in safety critical application is not recommended. So active star topology based CAN protocol is proposed, which needs the design of respective hub that could enforce confinement of faulty nodes thus avoiding any severe failure of communication. In future the hub with its fault tolerant mechanism is to be implemented in FPGA and further can be realized as an ASIC