Experimental study on low power wireless sensor network protocols with native IP connectivity for building automation

摘要

The thesis performs an experimental study on the performance of 6LoWPAN network stack running on the latest TI CC2650EM, and evaluates the possibility of implementing the chip in industrial building automation system. The experiment and evaluation is done in three aspects that the industrial mostly concern – stability, latency and reliability, and power consumption.Although there are already several mature network protocols specially designed for the IoT devices, IPv6 based 6LoWPAN network stack is highly compatible with the TCP/IP based Internet. The self-healing meshing and simple IP-routing mechanism makes 6LoWPAN very attractive to both developers and manufacturers.Contiki operating system provides a clear layer-separated implementation for the 6LoWPAN stack, and introduces a radio duty cycling protocol for saving power. Therefore, a black-boxed performance test on Contiki OS with 6LoWPAN network stack running on the TI CC2650EM board.Through the performance tests and comparison between the network protocols for low-power operations, the combination of TI CC2650 platform and Contiki OS with 6LoWPAN network stack is proved to be a promising solution for future building automation systems.