Abstract
The LOG-a-TEC testbed is a combined outdoor and indoor heterogeneous wireless testbed for experimentation with sensor networks and machine-type communications, which is included within the Fed4FIRE+ federation. It supports continuous deployment principles; however, it is missing an option to monitor and control the experiment in real-time, which is required for experiment execution under comparable conditions. The paper describes the implementation of the experiment control and monitoring system (EC and MS) as the upgrade of the LOG-a-TEC testbed. EC and MS is implemented within existing infrastructure management and built systems as a new service. The EC and MS is accessible as a new tab in sensor management system portal. It supports several commands, including start, stop and restart application, exit the experiment, flash or reset the target device, and displays the real-time status of the experiment application. When nodes apply Contiki-NG as their operating system, the Contiki-NG shell tool is accessible with the help of the newly developed tool, giving further experiment execution control capabilities to the user. By using the ZeroMQ concurrency framework as a message exchange system, information can be asynchronously sent to one or many devices at the same time, providing a real-time data exchange mechanism. The proposed upgrade does not disrupt any continuous deployment functionality and enables remote control and monitoring of the experiment. To evaluate the EC and MS functionality, two experiments were conducted: the first demonstrated the Bluetooth Low Energy (BLE) localization, while the second analysed interference avoidance in the 6TiSCH (IPv6 over the TSCH mode of IEEE 802.15.4e) wireless technology for the industrial Internet of Things (IIoT).
Highlights
The ever-growing number of Internet of Things (IoT) applications and scenarios using wireless sensor networks (WSN) can be categorized into particular domains, such as smart cities, smart grids, industrial automation, traffic management and logistics, remote monitoring, healthcare and assisted living, agriculture and breeding, public safety, and others
The LOG-a-TEC testbed is a combined outdoor and indoor heterogeneous wireless testbed for experimentation with sensor networks and machine-type communications, which is included within the Fed4FIRE+ federation
Testbeds, which mimic the real but controllable deployment environments, are essential for the experimental research and WSN system development. This was recognized within the European Commission framework Horizon 2020 [2], supporting projects in future internet research and experimentation (FIRE)—for example, the Fed4FIRE+ [3] project, which offers a large federation of next-generation internet (NGI) testbeds consisting of wired and wireless devices
Summary
The ever-growing number of Internet of Things (IoT) applications and scenarios using wireless sensor networks (WSN) can be categorized into particular domains, such as smart cities, smart grids, industrial automation, traffic management and logistics, remote monitoring, healthcare and assisted living, agriculture and breeding, public safety, and others. LOG-a-TEC [6], included in a Fed4FIRE+ facilities, combines outdoor and indoor heterogeneous wireless testbeds for experimentation with sensor networks and machine-type communications It supports continuous deployment principles [5], enabling fully automated experiment execution and results collection, but the interactivity with the nodes has not been fully supported until now. The motivation to upgrade the testbed is two-fold; firstly, provisioning its intuitive usage and better user experience, as well as the inclusion of new functionalities, are all characteristics for wireless environments to run a set of experiments in comparable radio environments The former includes the design of a new graphical user interface, consisting of the devices monitor, experiment controller with menus, command line input, and textual output.
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