FC-AE-1553 data exchange mode design method, FC-AE-1553 data exchange mode network control method and FC-AE-1553 data exchange mode energy saving method

Abstract

The invention discloses an FC-AE-1553 data exchange mode design method, an FC-AE-1553 data exchange mode network control method and an FC-AE-1553 data exchange mode energy saving method. According to the invention, all levels of the FC-AE-1553 protocol stack support the passive star topology, and 10 data exchange modes of the FC-4 level are compatibly designed according to 3 categories; besides, a method of "binary decision and cut-through forwarding" is proposed in a transfer mode to reduce the delay of data forwarding. The invention further provides a command time-scale control method of "timing inquiry and asynchronous processing", and the method can effectively process the terminal fault self-inspection and further improve the reliability of the network. The invention further provides two methods of a "half-sleep energy-saving mechanism" and a "total-sleep energy-saving mechanism" to reduce the network terminal power consumption. When a passive optical fiber coupler is used in the network, due to the passive characteristics of the coupler, when the two methods are adopted, the network system power consumption and the networking cost can be greatly reduced, and the irradiation resistance can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of avionics airborne high-speed data bus, and in particular relates to the design of an FC-AE-1553 data exchange mode, network control and energy-saving method. Background technique [0002] The FC-AE-1553 protocol is generated by mapping the MIL-STD-1553B protocol on the protocol stack switching layer (FC-4 layer) of the Fiber Channel (Fibre Channel, FC) protocol. The protocol stack structure is as follows figure 1 As shown, the underlying Fiber Channel technology was originally designed to provide storage area networks (Storage Area Network, SAN) for data transmission between computers and storage systems. When the FC-AE-1553 protocol is directly applied In the networking of aerospace vehicle systems, the disadvantages of complex structure, high cost, troublesome maintenance, and high power consumption become particularly prominent. Especially in the face of the design trend of modularization, integration...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the FC-AE-1553 protocol passive star network does not have an adaptive transmission switching mode and a network control method for the topology, and proposes a FC-AE-1553 data switching mode design, network Control and Energy Saving Methods

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