SYSTEM AND METHOD FOR ADVANCING DATA RELIABILITY IN BURIED TYPE WIRELESS NETWORK

摘要

PURPOSE: A method and a system of wireless networking for underground laying, capable of improving data reliability, are provided to improve reliability of data through effective routing and retransmission mechanism in wireless network for collecting data in underground environment. CONSTITUTION: Each neighbor node, which did not receives a first ACK message operates a timer according to a pre-stored priority table(S51). The neighbor nodes starts retransmission by generating the timer(S53). The neighbor nodes receives a second ACK message form a sync node(S55). If the second ACK message is not receives, the last priority neighbor node restarts retransmission from a specific sensor node to the sync node(S57).