Mil-Std 1553 Cable Modeling for Fault Detection
Sowmya Madhavan1, S Sandya2

1Sowmya Madhavan*, Department of Electronics and Communication Engineering, Nitte Meenakshi Institute of Technology, Bangalore, India.
2Dr S Sandya, Department of Electronics and Communication Engineering, Nitte Meenakshi Institute of Technology, Bangalore, India.
Manuscript received on January 19, 2020. | Revised Manuscript received on January 30, 2020. | Manuscript published on February 10, 2020. | PP: 1648-1655 | Volume-9 Issue-4, February 2020. | Retrieval Number: C9122019320/2020©BEIESP | DOI: 10.35940/ijitee.C9122.029420
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Abstract: Amongst major industries, the aircraft industry has gained momentum not only in public transportation, but also in defence, business and space sectors. The electrical, mechanical and electronic systems of an aircraft are all interconnected by different types of cables like hook up wires, cables for high speed data transmission, cables for power transmission, fire resistant cables, co-axial cables etc , with each type of cable having its own specifications. Military Standard 1553 (Mil-Std 1553) is one such cable primarily used for on-board aircraft sub-system communication and monitoring. Mil-Std 1553 protocol defines the physical and electrical properties of the cable. Mil-Std 1553 is a dual redundant bus, that is, there are two channels for a single bus communication. Mil-Std 1553 is prone to faults like opens or shorts because of its continuous wear and tear in aircraft environment. If a faulty cable is operated, then it possesses a high risk to the aircraft system .As of now ,there is no automatic fault detection system employed on Mil-Std 1553. Hence there is a need for automatic fault detection system on Mil-Std 1553 cables before the entire system collapses. In this regard, modeling of Mil-Std 1553 is very important since the developed model can be used for testing of the fault detection algorithm and further prototype development. Here, the Mil-Std 1553 cable has been modeled using SIMULINK/MATLAB. The cable is modeled under two different scenarios: considering only the Test Signal , considering both Test Signal and Data Signal. The cable is modeled considering all its electrical characteristics for three conditions, namely, No Fault condition, Open circuit condition and Short circuit condition. PI section is used as an elemental block for modeling of Mil-Std 1553. 
Keywords: Data Signal, Mil-Std 1553, Open Faults, Redundancy, Short Faults, Test Signal.
Scope of the Article: Signal Control System & Processing