Integrated interface architecture and control logic for enhanced emergency location functionality
First Claim
1. An ADT unit comprising:
- first processing means comprising ELT activation logic; and
an input interface comprising first, second and third terminals and second processing means configured to output an ELT ON state signal to the ELT activation logic if an impedance between the first and third terminals is effectively zero or if an impedance between the first and second terminals is effectively zero.
1 Assignment
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Accused Products
Abstract
Aircraft tracking and emergency location avionics architectures that integrate existing fixed Emergency Locator Transmitter (ELT) installations, their associated aircraft avionics systems and existing flight deck interfaces with an Autonomous Distress Tracker (ADT) transceiver unit in a coupled configuration. Some of the architectures allow the ADT unit and its advanced distress detecting and reporting capabilities to monitor the activation control path for the ELT and the associated ELT activation outputs. Other architectures place the ADT unit and its advanced distress detection capabilities and ground-controlled capabilities in the activation control path for the ELT. Additional architectures entail the connection of an ADT unit to an ELT remote panel on the flight deck of an aircraft.
17 Citations
19 Claims
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1. An ADT unit comprising:
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first processing means comprising ELT activation logic; and an input interface comprising first, second and third terminals and second processing means configured to output an ELT ON state signal to the ELT activation logic if an impedance between the first and third terminals is effectively zero or if an impedance between the first and second terminals is effectively zero. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system onboard an aircraft comprising:
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an ELT remote panel on the flight deck of the aircraft, the ELT remote panel comprising a switch; a first antenna that is attached to an exterior of a fuselage skin of the aircraft; and an ADT unit connected to the first antenna and comprising; first processing means comprising ELT activation logic; and a first input interface comprising first, second and third terminals, and second processing means configured to output an ELT ON state signal to the ELT activation logic if an impedance between the first and third terminals is effectively zero or if an impedance between the first and second terminals is effectively zero, wherein the switch of the ELT remote panel is connected to the first terminal of the first input interface by wiring. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification