GJB289A serial bus-based distributed aircraft management system architecture

Abstract

The invention provides a GJB289A serial bus-based distributed aircraft management system architecture. The distributed aircraft management system adopts a redundant GJB289A bus as a system bus, an aircraft management computer is in charge of bus scheduling, the bus is used as an information exchange channel for each processing part inside the aircraft management system, and the aircraft management computer is in charge of synchronous processing of the system bus information. An ARINC659 bus is adopted between aircraft management computer channels as an inner bus for an information exchange channel for each processing resource unit of the aircraft management computer. The ARINC659 bus is adopted as the inner bus of the redundant computer, each interface board card and each processor board card are both hung and connected onto the inner bus, data transmission is carried out via the inner bus, the degrading speed of the computer inner function module can be effectively delayed, and system task reliability is greatly improved.

Description

technical field [0001] The invention belongs to the field of flight control systems, and in particular relates to an aircraft management system. Background technique [0002] There are two types of hardware structure of the deformation control system of the current variant aircraft: centralized and distributed. The centralized structure is relatively simple to manufacture, but the driver bears a large load and requires high strength, resulting in a large structure weight, and the deformation form is fixed and single. If only the sweep angle can be changed, the failure of the driver will cause the aircraft to fail. In the distributed structure, multiple drives share the load, which helps to reduce the weight of the structure. The deformation form is flexible and robust, and it can ensure sufficient controllability of the aircraft when some drives fail. [0003] In related technologies, the centralized flight control system is only responsible for the flight control function,...

AI Technical Summary

Problems solved by technology

This mainly has the following problems: a, each redundant computer is all based on the CPU board as the core, all computers and interface controls in this channel, if the processor of any channel fails, information such as sensors connected to this channel will also fail thereupon , fault degradation is fast, as attached image 3 ; b. The weight of the cable is heavy. Since most of them use analog and discrete quantities, each signal is one or two wires, and they are distributed in multiple areas of the whole machine. The cables are heavy and maintenance is complicated; c. The scalability is poor, adding a signal That is to add one or two wires, and re-laying; d, signal wire grounding or low detection rate of open circuit, can only be monitored by comparison between redundant signals

The aircraft management system is responsible for the comprehensive control and management of the flight control, electromechanical, power and other platforms of the whole aircraft. Its functions are complex, the amount of information is large, and the amount of calculation is large. Based on the traditional centralized flight control system architecture, it can no longer meet the requirements.

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