Wi-GIM recording test at DST-UNIFI

A recording test of the new wireless sensor network system has been carried out with a complete cluster consisting of 10 nodes installed at the Department of Earth Sciences at University of Florence: 1 Master Node which coordinates the WSN and performs data aggregation and local storage, equipped with a decawave, a GSM modem, a GPS antenna and a Radar); 3 Slave Nodes equipped with a decawave and a GPS antenna and 6 simple Slave Nodes (without GPS antenna). Each node is powered by its own battery and it is completely self-supporting. The system will make a measure every 10 minutes for a total of 400 distinct measures. 
Currently the system can send to the operator a SMS to warn if a battery needs to be charged; at the moment the recorded data has to be downloaded directly from the master node. The developing team is now working on a new firmware which will allow to send via GSM the recorder data every measurement cycle: this will further improve the usability of the system.

Cluster scheme. The cluster consists of ten nodes: one master node (decawave, GSM modem, GPS and Radar), three "super" slave node (decawave and GPS) and six simple slave node (only decawave). Each node is powered by its own battery and it is completely independent.