Aircraft security
First Claim
1. An aircraft comprising a flight deck, a passenger cabin isolated from the flight deck by a bulkhead, and a passenger cabin security alert system for alerting authorized personnel (flight crew) in the flight deck to a problem in the passenger cabin, the system comprising a plurality of portable wireless transmitter units, each transmitter unit being suitable to be carried or worn on the person of authorized personnel (cabin crew) in the passenger cabin and being adapted to transmit a warning signal when actuated, and means arranged to receive a warning signal transmitted by a portable transmitter unit, determine the position in the cabin area of the portable transmitter unit that has been actuated and activate an alert unit in the flight deck for indicating the existence and position of the problem to authorized personnel (flight crew) in the flight deck, wherein the receiver means comprises a plurality of detector units including a master control module and at least one relay module, each detector unit being capable of detecting a warning signal transmitted by a portable transmitter unit, and control means responsive to detection of the warning signal by at least two detector units for determining the location of the portable transmitter unit within the cabin area.
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Accused Products
Abstract
An aircraft has a passenger cabin security alert system for alerting authorized personnel (flight crew) in the flight deck to a problem in the passenger cabin. The system employs portable wireless transmitter units suitable to be carried or worn on the person of authorized personnel (cabin crew) in the passenger cabin. Each transmitter unit is adapted to transmit a warning signal when actuated that is received by detector units that communicate with control means operable to determine the position P in the passenger cabin of the transmitter unit that has been actuated. The control means activates an alert unit in the flight deck to indicate the existence and position of the problem to authorized personnel (flight crew) in the flight deck.
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Citations
17 Claims
- 1. An aircraft comprising a flight deck, a passenger cabin isolated from the flight deck by a bulkhead, and a passenger cabin security alert system for alerting authorized personnel (flight crew) in the flight deck to a problem in the passenger cabin, the system comprising a plurality of portable wireless transmitter units, each transmitter unit being suitable to be carried or worn on the person of authorized personnel (cabin crew) in the passenger cabin and being adapted to transmit a warning signal when actuated, and means arranged to receive a warning signal transmitted by a portable transmitter unit, determine the position in the cabin area of the portable transmitter unit that has been actuated and activate an alert unit in the flight deck for indicating the existence and position of the problem to authorized personnel (flight crew) in the flight deck, wherein the receiver means comprises a plurality of detector units including a master control module and at least one relay module, each detector unit being capable of detecting a warning signal transmitted by a portable transmitter unit, and control means responsive to detection of the warning signal by at least two detector units for determining the location of the portable transmitter unit within the cabin area.
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14. A passenger cabin security alert system for a passenger vehicle having a control section and a passenger section, the system comprising a plurality of portable wireless transmitter units, each transmitter unit being suitable to be carried or worn on the person of authorized personnel in the passenger section and being adapted to transmit a warning signal when actuated, and means arranged to receive a warning signal transmitted by a portable transmitter unit, determine the position in the passenger section of the portable transmitter unit that has been actuated and activate an alert unit in the control section for indicating the existence and position of the problem to authorized personnel in the control section, wherein the receiver means comprises a plurality of detector units including a master control module and at least one relay module, each detector unit being capable of detecting a warning signal transmitted by a portable transmitter unit, and wherein the location of the portable transmitter unit within the cabin area is determined in response to detection of the warning signal by at least two detector units.
Specification