APPARATUS AND METHOD FOR DISTRIBUTED PROCESSING OF TRAIN MONITORING TRAFFIC BASED HIERARCHICAL WIRELESS SENSOR NETWORK

摘要

The present invention relates to an apparatus for distributed processing of train monitoring traffic based on a hierarchical wireless sensor network, which can prevent a traffic bottleneck of sensor data which is generated in real time in a wireless sensor network over which operation state information of a train is transmitted in real time to ensure safe train operation. The apparatus for distributed processing of train monitoring traffic based on construction of a hierarchical wireless sensor network comprises: a wireless sensor node which generates sensor data by periodically measuring state information of a train; a wireless mesh network (WSN) management unit which classifies the sensor data as priority data or non-priority data by assigning the sensor data to a priority according to change characteristics, transmits the priority data to a sensor monitoring center via wireless communication, and transmits the non-priority data to a wireless mesh node via a wireless mesh network; and one or more wireless mesh nodes which are spaced apart at predetermined intervals on a railway side and transmit the non-priority data, received from the WSN management unit, to the sensor monitoring center.