Hardware Design of a Modular Self-Test Solution for Functional Test Platforms
Gerber, Karl (2023)
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2023101327490
https://urn.fi/URN:NBN:fi:amk-2023101327490
Tiivistelmä
This thesis presents a modular self-test solution aimed at improving the inefficient troubleshooting process associated with OiTec Oy's functional test (FCT) stations, which lack an automated test procedure. The proposed solution offers flexible and robust post-assembly testing hardware, capable of comprehensively testing all FCT station models produced by OiTec Oy.
To create the self-test solution, thorough research on all FCT station configurations, their features, and devices was conducted. Data was organized, incorporating all functionalities, devices, and signal paths, leading to the development of system layouts, testing circuits, and switching solutions. Circuit designs were simulated in LTspice, and after confirmation of functionality integrated into electrical schematics using PADS Logic. A review process, involving hardware, software, and mechanical engineers, resulted in refinements and additions to the designs.
The solution consists of currently six modular boards housed in a custom FCT cassette. There is one cross connection board, connecting and powering up to eight self-test boards, which facilitate testing of various FCT device modules, including power, IO, HSDIO, switch and measurement modules. The design focuses primarily on validating device wiring rather than performance metrics. Future work includes PCB layout, production, and implementation, promising a more efficient testing process for OiTec's FCT stations.
To create the self-test solution, thorough research on all FCT station configurations, their features, and devices was conducted. Data was organized, incorporating all functionalities, devices, and signal paths, leading to the development of system layouts, testing circuits, and switching solutions. Circuit designs were simulated in LTspice, and after confirmation of functionality integrated into electrical schematics using PADS Logic. A review process, involving hardware, software, and mechanical engineers, resulted in refinements and additions to the designs.
The solution consists of currently six modular boards housed in a custom FCT cassette. There is one cross connection board, connecting and powering up to eight self-test boards, which facilitate testing of various FCT device modules, including power, IO, HSDIO, switch and measurement modules. The design focuses primarily on validating device wiring rather than performance metrics. Future work includes PCB layout, production, and implementation, promising a more efficient testing process for OiTec's FCT stations.