Abstract: A system for monitoring the airport lamp using power-line carrier wave. A host station and respective terminal for monitoring individually the airport lamp L via a rubber transformer are connected in series to a power line derived from a fixed current generator. The host station and terminal include a signal injection section for intermittently injecting control signal/lamp monitoring signal from a higher order system to the power line at a predetermined cycle within a predetermined time from the zero cross of power source waveform of the power line. A signal extraction section for receiving the control signal/lamp monitoring signal is injected to the power line within a predetermined time from the zero cross detection by monitoring only a specific frequency.

Abstract: A power-line carrier airport facilities monitor system, comprising a host station and respective terminal for monitoring individually the object facilities via a rubber transformer are connected in series to a power line derived from a fixed current generator, wherein the host station and respective terminal create a control command for respective terminal/monitoring signal of the object facilities as text data and, on the other hand, injections said text data to the power line by FSK modulation based on the zero cross detection of the power line power source waveform.

Abstract: A power-line carrier airport facilities monitor system, comprising a host station and respective terminal for monitoring individually the object facilities via a rubber transformer are connected in series to a power line derived from a fixed current generator, wherein the host station and respective terminal create a control command for respective terminal/monitoring signal of the object facilities as text data and, on the other hand, injections said text data to the power line by FSK modulation based on the zero cross detection of the power line power source waveform.

Abstract: A system for monitoring the airport lamp using power-line carrier wave, wherein a host station and respective terminal for monitoring individually the airport lamp L via a rubber transformer are connected in series to a power line derived from a fixed current generator, wherein the host station and terminal comprise a signal injection section for intermittently injecting control signal/lamp monitoring signal from a higher order system to the power line at a predetermined cycle within a predetermined time from the zero cross of power source waveform of the power line, and a signal extraction section for receiving the control signal/lamp monitoring signal injected to the power line within a predetermined time from the zero cross detection by monitoring only a specific frequency.