Implementation of Raspberry Pi for Fault Detection in Optic Fibre Line

Raspberry Pi is implemented for fault detection system in this work which detects the fibre line fault in real-time basis by maintaining a local database. Pi is specially designed with a MySQL database to update the fault status of fibre line with the time stamp by the help of an op-amp and photodiode. Here, op-amp is used as a comparator which compares the incoming line voltage through the photodiode with a pre-set values maintained at non-inverting terminal, and after the comparison, if the incoming voltage falls below the reference voltage then the output of op-amp initiates the GPIO pin of Pi to indicate the fault status on database. Also, an experiment is conducted by using two Scientech 2506 fibre optic kits in the laboratory for physical realization of the whole system.