Smoke warning system
AssigneeAirbus Deutschland GmbH
InventorsKai Behle, Klaus Schmoetzer
Life of this patent
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Abstract
In a smoke warning system ambient conditions are included in the evaluation of the smoke warning transmitter statuses, or the internal signal evaluation in the smoke warning transmitter is influenced. In this procedure the alarm threshold of the system is raised under certain ambient conditions so that the smoke warning transmitter per se is set so as to be less sensitive.
Claims15
A system for smoke warning for an aircraft, the system operable to communicate via an aircraft data network and comprising:
- a smoke warning transmitter operable to detect a smoke situation;
- a plurality of acquisition devices, each acquisition device of the plurality of acquisition devices operable to detect an ambient condition different from remaining acquisition devices of the plurality of acquisition devices, the plurality of acquisition devices including:
- a central maintenance system device operable to transmit, as a first ambient condition, flight data to the aircraft data network during flight,
- a flight management system device operable to transmit, as a second ambient condition, signaling concerning an aircraft destination to the aircraft data network,
- a door control system device operable to transmit, as a third ambient condition, signaling concerning a status of doors to the aircraft data network,
- an air data system device operable to transmit, as a fourth ambient condition, signaling concerning air temperature, humidity and pressure to the aircraft data network, and
- a flight warning system device operable to transmit, as a fifth ambient condition, flight warning signaling to the aircraft data network;
- a threshold setting device operable to receive at least one ambient condition of the first, second, third, fourth, and fifth acquired ambient condition via the aircraft data network and to set an alarm threshold of the smoke warning system according to the at least one acquired ambient condition;
- and
- an output device for issuing an alarm when the set alarm threshold is reached.
An aircraft smoke warning device and connected to a data line connected to a smoke warning transmitter for detecting a smoke situation device for communicating with an alarm output, the aircraft smoke warning device further connected to an aircraft data network connected a central maintenance device for transmitting, as a first ambient condition, flight data to the aircraft data network during flight, a flight management device for transmitting, as a second ambient condition, signaling concerning an aircraft destination to the aircraft data network, a door control device for transmitting, as a third ambient condition, signaling concerning a status of doors to the aircraft data network, an air data device for transmitting, as a fourth ambient condition, signaling concerning air temperature, humidity and pressure to the aircraft data network, and a flight warning device for transmitting, as a fifth ambient condition, flight warning signaling to the aircraft data network, the device comprising:
- a threshold setter operable to receive the smoke situation signaling and to receive via the aircraft data network at least one ambient condition of the first, second, third, fourth, and fifth acquired ambient conditions and to set an alarm threshold according to the at least one ambient condition;
- and
- an evaluation device operable to evaluate the smoke situation according to the alarm threshold and to signal the alarm output device when the alarm threshold is reached.
Dependencies are inferred from the claim text.