The computer system 'client server' safe for interactive applications

摘要

The computer system "client server" safe for interactive applications.The general field of invention is that computer systems like client server for graphical applications, i.e., to display the data in the form of software units called "graphic symbols in the display screens called" units of exhibition ", said system being pretendid To control the operation of a machine.The machine including at least a human - machine interface allowing interaction with the graphical symbols, the said system managing data or critical functions.The computer system according to the invention includes a safety mechanism controlling the integrity of critical graphs display of symbols, sending commands that is executed by means of the human machine interface, the input and display of the data density.The main provisions of this safety mechanism is the use of "signatures" of the computer, the provision of circuits of "feedback" and the use of protection mechanisms or confirmation dialog boxes dedicated. Preferably, the machine is an aircraft, the computer system The avionics aboard the aircraft and the display screens are display system of cockpit.