Method for implementing an air traffic service unit

• US 6,275,767 B1
• Filed: 12/08/1999
• Issued: 08/14/2001
• Est. Priority Date: 12/11/1998
• Status: Expired due to Term

• Current Assignee: Airbus Operations SAS (Airbus SE)
• Original Assignee: Aerospatiale Matra (Airbus SE)
• Inventors: de Viguerie, Serge, Souyris, Jean, Delseny, Hervé, Randimbivololona, Famantanantsoa
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Assistant Examiner(s): PIPALA, EDWARD J
• Application Number:
  US09/456,434
• Time in Patent Office: 615 Days
• Field of Search: 701/1, 701/3, 701/14, 701/120, 701/200, 701/205, 701/208, 701/300, 701/301
• US Class Current: 701/120
• CPC Class Codes: G06Q 99/00 Subject matter not provided for in other groups of this subclass

Abstract

This invention relates to a method for implementing the air traffic service unit (ATSU) managing the links between certain aircraft equipment and the ground/board communication means, and its operating system (OS) managing input/output, the use of software and hardware resources, chaining and timing of applications that are programs carrying out aircraft system functionalities, and wherein memory partitioning mechanisms and CPU partitioning mechanisms are used; wherein operating system calls are filtered so as to prevent said AOC (Airline Operational Communication) type applications from distributing the operation of said air traffic service unit.

Claims

1. A method for implementing an air traffic service unit including an operating system having an input/output management, a hardware resource, and a software resource, comprising the steps of:

managing links between aircraft equipment and a ground/board communication means via the operating system;

chaining an airline operational communication (AOC) application wherein the application performs an aircraft system functionality;

timing the AOC application;

using a memory partitioning mechanism to provide a protection check wherein the protection check determines code access of the AOC application;

using a processing unit partitioning mechanism to assign a job a priority wherein the job priority determines CPU access of the AOC application; and

filtering an operating system call from the AOC application to prevent said AOC application from disturbing an operation of said air traffic service unit.

2. The method as recited in claim 1, wherein the filtering the operating system ce includes the HOOK method to provide a procedure during a system call before the system call is processed by the operating system.

3. The method as recited in claim 2, wherein the filtering the operating system call provides an authorized system call access.

4. The method as recited in claim 1, wherein the operating system call includes the following steps:

configuring a filter feature wherein the filter feature is set by means of a “

superuser”

process included in the air traffic service unit;

filtering a system call to be filtered to determine a system call execution reject;

recording the system call execution reject; and

at a demand of the superuser process of the air traffic service unit, supplying a data stored on the system call execution reject.