WirelessHART is the first open wireless communication standard designed for industrial monitoring and control. Process industry applications for real-time plant have stringent needs of reliability, stability and security of wireless communication. In this paper we propose an approach for reliable routing graph construction and energy efficient link selection to enhance the reliability of the communication and prolong the network lifetime. In particular, we ensure at least two neighbor nodes are maintained for each node to support increase the delivery ratio of hop-level retransmission. Furthermore, link quality and energy model are considered in the link selection process, which reduces the potential number of retransmission and balances the residual energy in the network. Experimental results show that our proposed mechanism outperforms the state-of-the-art WirelessHART routing algorithms in terms of extending the network lifetime and the reliability of message transmission.
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