Here at http://iotgateway.blogspot.co.uk/ you will find the blog for our year 2 project blog titled "IoT Gateway", by Weipeng Wang, Haodong Li and Jiangbo Yu, supervised by Prof Alan Marshall.
This project aims to build a gateway using raspberry pi to transfer ZigBee signal into WiFi signal. This enables the interaction between ZigBee network and WiFi network, meaning that a low power consumption network and a commonly used high power consumption network are connected together. This connection lowers the energy consumption of networks among internet of thing and makes the wide application of IoT technology possible.
The team attached two temperature sensors and one light sensor to the XBee modules, which will send ZigBee signal to the gateway. A python program in the gateway will analyze the data received and tranfer it into WiFi data packets. After that, the WiFi data packets will be sent to a terminal computer, where the live data of the sensors will be shown as several dynamic line charts with scales of second, minute, hour and day.