The image below shows that when the accelerometer reading exceed a defined threshold, the sensor node status will indicate which node is in danger and also display which warning is detected. In this case, the sensor node 3 x axis reading which can be seen from the lower left graph has exceeded the threshold.
The second image shows that tsunami warning is detected. Based on the water level monitoring (upper left) section, sensor node 2 is in the critical level (3) and warning is issued and the gate is closed.
Last but not least, the reading from load cell is used to determine the bridge/structure health which is shown in the graph at the lower right. Whenever the reading exceeded the safe level, it is detected as a warning and the structure warning will turn red.
There are so many new things that I have learnt from this project. This was the first time I actually involved in a project which requires multiple processor communicate with each other through wireless communication. Besides it was also my first time to interface between an Arduino and LabVIEW which allows me to create a nice GUI easily and visualise all the sensor measurement. I hope this covers all the details for you to understand about this project. If you have any questions to know more about this project, feel free to drop me a comment below.
Last but not least, I would like to thanks to all my team members and also friends who gave their support to this project.
Original article by Zx Lee at his website.
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