Chapter

Runtime Reconfiguration in Networked Embedded Systems

Part of the series Internet of Things pp 137-168

Date:

An Illustrative Application Example: Cargo State Monitoring

  • Coen van LeeuwenAffiliated withTNO
  • , Vicente Hernández DíazAffiliated withUPM
  • , Roshan KotianAffiliated withTU/e
  • , Raúl del Toro MatamorosAffiliated withUPM
  • , Zoltan PappAffiliated withTNO
  • , Yolanda Rieter-BarrellAffiliated withTNO Email author 

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Abstract

The previous chapters in this book provide the foundations and a brief description of the DEMANES tool chain. This chapter describes a real self-adaptive system developed using the DEMANES tool chain. This chapter focuses on the design and implementation stages of a real use case development. The use case under study is a subsystem, called Cargo Monitoring System (CMS) , that monitors the state of the container cargo and pushes all the data to a back office infrastructure for further processing. The containers can be on a truck, a train, or any other appropriate transportation means, or stacked in a container terminal or a cargo ship. A WSN will measure physical magnitudes (temperature, humidity and so on) inside a container and will forward data to others processing nodes in the CMS network. The CMS has to meet several self-adaptive requirements. For instance, the parameters of the CMS elements that monitor the container cargo state are reconfigured accordingly to adapt to internal or external changes (e.g. a low battery level or a container temperature out of the adequate bounds), and the CMS adapts the WSN nodes power transmission to save energy while providing an acceptable quality of service.