Design and Prototype Implementation of Long-Range Self-Powered Wireless IoT Devices

This paper presents the design and prototype implementation of long-range self-powered wireless IoT devices using nRF52840 based on energy harvesting. The test-bed is setup in both star and multi-hop configurations with optimized custom protocols. In both network configurations, nodes consume less power than what is harvested in an indoor light environment using a small 0.36W rated monocrystalline solar panel. The average power by which the battery was charged during the test was 941.94µW in an indoor environment. Nodes are able to operate for 12 months using a fully charged 120mAh rated rechargeable coin cell battery with 55s transmission interval. Based on measurements, a line of sight range of 1.8km is obtained using coded transmissions. Sensors of temperature, relative humidity and visible light are integrated into the nodes.

[1]  Reducing Overhearing Energy in Wake-Up Radio-Enabled WPANs: Scheme and Performance , 2018, 2018 IEEE International Conference on Communications (ICC).

[2]  Minoo Naebe,et al.  Paving the Path to a Green and Self-Powered Internet of Things , 2017, 1712.02277.

[3]  Mohsen Guizani,et al.  Internet of Things: A Survey on Enabling Technologies, Protocols, and Applications , 2015, IEEE Communications Surveys & Tutorials.

[4]  Liudong Xing,et al.  A Performance Comparison of Different Topologies for Wireless Sensor Networks , 2007, 2007 IEEE Conference on Technologies for Homeland Security.

[5]  Linga Reddy Cenkeramaddi,et al.  Self-Powered IoT Device for Indoor Applications , 2018, 2018 31st International Conference on VLSI Design and 2018 17th International Conference on Embedded Systems (VLSID).