A non-similar dual-redundancy airborne alarm computer system

Abstract

The invention relates to a non-similar dual-redundancy airborne alarm computer system, which comprises an alarm information output module, an A platform, a B platform and an alarm information acquisition module, the alarm information acquisition module is respectively connected with the platform A and the platform B; the platform A and the platform B are respectively connected with the alarm information output module; wherein the platform A comprises a power supply module, a platform A processor, a bus interface / processing module and a discrete interface / processing module; wherein the power supply module and the A platform processor are sequentially connected, and the A platform processor is respectively connected with the bus interface / processing module and the discrete interface / processing module; the platform B comprises a power module, a platform processor B, a bus interface / processing module and a discrete interface / processing module, and the connection mode is the same as that ofthe platform A; the non-similar redundancy technology effectively inhibits common-mode faults in the aspects of hardware and software, and the reliability of the system is greatly improved.

Description

technical field [0001] The invention relates to the technical field of computer systems, in particular to an airborne warning computer system with non-similar double redundancy. Background technique [0002] For some key computer systems, in order to meet the requirements of safety and reliability, redundancy technology is usually used, that is, two or more components, subsystems or channels that can perform the same given function are used, and the fault detection system can be used to monitor faults. And complete the monitoring device for automatic conversion or automatic removal. The essence of redundant technology is to use redundant resources in exchange for the improvement of the task reliability of the entire system. [0003] Redundancy techniques can generally be divided into similar redundancy techniques and non-similar redundancy techniques. Although the computer system using similar redundancy technology is very effective in improving the reliability of the syst...

AI Technical Summary

Problems solved by technology

Although the computer system using similar redundancy technology is very effective in improving the reliability of the system hardware, since each subsystem is under the control of the same command, runs the same program, and is in the same working state at all times, resulting in the gap between channels. The coupling is very tight, and two or more components may fail at the same time due to some common reason, that is, the so-called common mode fault, which seriously affects the safety of the redundant system and reduces the reliability of the system by several orders of magnitude. become the main source of system failure

Images