Physical Optics Corporation — Department of Defense SBIR Phase I: To address the Navy"s need for enhanced weapons replaceable assembly (WRA) diagnostic

Description

To address the Navy"s need for enhanced weapons replaceable assembly (WRA) diagnostics at the Organizational maintenance level, Physical Optics Corporation (POC) proposes to develop a new hardware/software system, Boundary Scan Enhanced Diagnostics (BSED). This proposed ruggedized system will utilize a combination of commercial off-the-shelf (COTS) and novel POC technologies to harness boundary scan techniques to existing functional built-in test (BIT) for vastly improved avionics system diagnostics to reduce WRA failure ambiguity to near 0%. The innovation in BSED is the system"s ability to use Joint Test Action Group (JTAG)-based boundary testing to collect information about physical faults at the component and trace levels for application to a system-level diagnostic function, thus increasing the likelihood of isolating a failed WRA beyond the point that traditional functional BIT can reach. In Phase I POC will investigate the electronic systems in use by the Navy and demonstrate the feasibility of BSED by utilizing commercially available hardware and a combination of commercial and custom software libraries to produce fault data compatible with Navy test equipment. In Phase II, POC plans to build and demonstrate a fully functional prototype system including a boundary scan controller device and associated cabling for a target Navy system.