| 摘要 |
PROBLEM TO BE SOLVED: To provide means capable of surely returning to a cockpit without depending upon an operation of a person being in the cockpit when hijacking takes place in the case that a pilot who is always in the cockpit to operate a passenger airplane and a person supporting operation work temporarily leave the cockpit while the passenger airplane flies on the assumption that a criminal surely prevents an entry to the passenger airplane cockpit.SOLUTION: Only a pilot who is always in a cockpit to operate a passenger airplane and a person supporting operation work during the flight of the passenger airplane are targeted. In the case that a person being in the cockpit does not respond to a room entry request and further that a door lock emergency release due to a secret identification number is forcedly invalidated when they temporarily leave the cockpit of the passenger airplane, and enter the cockpit again, means for releasing forced invalidation of the door lock emergency release due to the secret identification number of the cockpit, that is, authentication information which is owned only by the pilot who is always in the cockpit to operate the passenger airplane and the person supporting the operation work is provided, information used in the means is registered in a system, and a device for reading the information is installed outside the cockpit.SELECTED DRAWING: Figure 1 |
