Analysis of Automatic Aircraft Landing Using

L imply, the loss of the visual aid for the pilot and it can result in sabotages while landing. This project deals with the individual detection of any open circuit between two successive fittings. This i achieved by placing a simple non contact AC voltage detector over the insulated 5kV line and transmitting the output logic to the control room through GSM technology. The voltage detector picks up the hum of AC voltage, decade counter. During open circuit, absence of line voltage makes the last count to be stable, which is picked up by a microcontroller, which in turn activates GSM transmitter to transmit the desired message to the control room GSM receiver. This system has a major advantage that it needs no extra under lying of cables near runway and GSM frequency which doesn’t affect RADAR and other communication frequencies and also independent of distance. Also it requires no physical connection between CCR and also to And over all, it is the most cost efficient system introduced so far