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Wireless Sensor Networks (WSNs) can be used to monitor otherwise difficult-to-reach environments due to the physical characteristics of the nodes and their ability to transmit data from a distance. However, they also bear the disadvantages of small life cycle, low data reliability and malicious intervention. A solution to this problem can be the incorporation of dedicated software in the operating system capable to monitor specifc parameters of the node and inform the sink when something is wrong with the operation of the node. In this work we propose a lightweight run time monitoring tool, called Run-time Monitoring Tool (RMT), developed for operation in Contiki O/S. This tool can be customized to monitor parameters of interest and execute instructions at runtime. A multilayer, multiprotocol approach is taken in RMT, with the ability to monitor two Contiki O/S layers, have detailed node power consumption and observe the operation of a routing protocol. Our evaluation shows that RMT guarantees minimum overhead and low energy consumption.
Ioannou et al. (Fri,) studied this question.