Electrical distribution system for an aircraft and corresponding control method
Electrical distribution system for an aircraft comprising at least one computer communicating with the avionics ( 2 ), at least one computer ( 1 ) suitable for communicating with at least one computer communicating with the avionics ( 2 ), each computer containing stored data. The system comprises a context information storage device ( 4 ), suitable for storing a copy of the data stored in the different computers, and an updating device, suitable for determining that a computer has been replaced by determining that it does not hold the same data as the other computers of the distribution system and/or as the context information storage device ( 4 ), the updating device being suitable for controlling the downloading of the data from the context information storage device or from a computer communicating with the avionics, into the replaced computer.
1. Method for controlling an electrical distribution system for an aircraft fitted with at least one electrical power supply line and at least one electrical protection,
the electrical distribution system comprising:
at least one computer connected to avionics computers of the aircraft comprising data processing means and a memory configured to store a copy of a database of protection parameters,
an electrical distribution computer connected to the at least one computer connected to the avionics computers comprising data processing means and a memory configured to store a copy of the database of protection parameters, and a context information storage device, comprising a memory configured to store a copy of the database of protection parameters, the database of protection parameters defining electrical protections and their activation history for at least one electrical power supply line of the aircraft,
wherein each of the at least one computer connected to the avionics computers of the aircraft, the at least one electrical distribution computer, and the context information storage device can be replaced,
the method comprising:
determining that the copy of the database stored in the memory of the context information storage device differs from the copies of the database stored in the memory of one of the at least one computer connected to the avionics computers and one of the at least one electrical distribution computer in a three-way vote mechanism,
identifying the context information storage device as a new context information storage device based on the determining step, and
in a case where the context information storage device has been replaced by the new context information storage device and neither the at least one electrical distribution computer nor the at least one computer connected to the avionics computers have been exchanged, copying the copy of the database from the at least one computer connected to the avionics computers into the new context information storage device.
2. Method according to claim 1 , further comprising:
determining that the copy of the database stored in the memory of the one of the at least one electrical distribution computer differs from the copies of the database stored in the memory of the one of the at least one computer connected to the avionics computers and of the context information storage device in a three-way vote mechanism,
identifying the one of the at least one electrical distribution computer as a new electrical distribution computer based on the determining step,
in a case where the one of the at least one electrical distribution computer has been replaced by the new electrical distribution computer, and neither the one of the at least one computer connected to the avionics computers nor the context information storage device have been exchanged, copying the database from the one of the at least one computer connected to the avionics computers into the new electrical distribution computer.
3. Method according to claim 1 , further comprising:
determining that the copy of the database stored in the memory of the one of the at least one computer connected to the avionics computers differs from the copies of the database stored in the memory of the one of the at least one electrical distribution computer and of the context information storage device in a three-way vote mechanism,
identifying the one of the at least one computer connected to the avionics computers as a new computer connected to the avionics computers based on the determining step,
in a case where the one of the at least one computer connected to the avionics computers has been replaced by the new computer connected to the avionics computers and neither the one of the at least one electrical distribution computer nor the context information storage device have been exchanged, copying the database from the context information storage device into the new computer connected to the avionics computers.