SECURE COMMAND METHOD AND DEVICE FOR REMOTE MAINTENANCE TERMINAL

• US 20090198390A1
• Filed: 01/16/2009
• Published: 08/06/2009
• Est. Priority Date: 02/01/2008
• Status: Active Grant

• Current Assignee: Airbus Operations SAS (Airbus SE)
• Original Assignee: Airbus France
• Inventors: BOVET, Michel, Ric, Georges
• Granted Patent: US 8,244,413 B2
• Time in Patent Office: Days
• US Class Current: 701/2
• CPC Class Codes: G05B 23/0272 Presentation of monitored results, e.g. selection of status reports to be displayed; Filtering information to the user

Abstract

The object of the invention is a secure command method and device for controlling an on-board maintenance device, such as a maintenance device installed on board an aircraft, from a remote maintenance terminal. The maintenance device is connected to the remote maintenance terminal by a communication network. After at least one datum representative of at least one command associated with at least one instruction has been received, the received datum is filtered to determine the validity of the command. If the received datum is valid, an instruction or a set of instructions associated with the command represented by this datum is identified in order to be executed. The filtering step is preferably iterative and based on the transmission protocol as well as on the encoding of the datum.

Claims

1. A method for executing at least one instruction in an on-board maintenance device from a remote system connected to the said maintenance device via a communication network, this method comprising the following steps:

receiving at least one datum representative of at least one command associated with the said at least one instruction;

filtering the said at least one received datum; and

,

in response to the said filtering step, if the said at least one received datum represents a valid command, conversion of the said at least one received datum to identify the said at least one instruction.

2. A method according to claim 1, additionally comprising a step of verifying a signature of the said at least one received datum.

3. A method according to claim 1, additionally comprising a preliminary step of storing in memory the correspondence between the said at least one datum and the said at least one instruction.

4. A method according to claim 1, wherein the said filtering step is an iterative filtering step based on at least two distinct criteria.

5. A method according to claim 4, wherein at least one of the said at least two criteria is associated with the protocol for transmission of the said at least one datum.

6. A method according to claim 4, wherein at least one of the said at least two criteria is related to the encoding of the said at least one datum representative of the said at least one command.

7. A method according to claim 1, additionally comprising a step of transmitting at least one information item related to execution of the said at least one instruction.

8. A method according to the preceding claim, additionally comprising a step of signing the said at least one information item.

9. A device comprising means adapted to employment of each of the steps of the method according to any one of the preceding claims.

10. An aircraft comprising the device according to the preceding claim.