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| report:abs [2026/06/14 12:57] – [Abstract] team5 | report:abs [2026/06/14 14:30] (current) – [Abstract] team5 |
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| The hardware stack is built around ESP32-C3 microcontrollers and MCP2551 CAN transceivers, selected for their low power consumption and high electromagnetic interference immunity in the metro environment. The web platform is implemented in Next.js with a Supabase backend and an automated content moderation pipeline. A functional two-node prototype was delivered within a 100 € budget constraint. | The hardware stack is built around ESP32-C3 microcontrollers and MCP2551 CAN transceivers, selected for their low power consumption and high electromagnetic interference immunity in the metro environment. The web platform is implemented in Next.js with a Supabase backend and an automated content moderation pipeline. A functional two-node prototype was delivered within a 100 € budget constraint. |
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| Validation confirmed a CAN bus packet delivery ratio exceeding 99.9 %, end-to-end sensor-to-LED latency below 100 ms, and a System Usability Scale score of 86.59, placing the web interface in the Excellent category. All functional, performance, safety, and user acceptance tests passed successfully. | Validation confirmed a CAN bus packet delivery ratio exceeding 99.9 %, end-to-end sensor-to-LED latency below 100 ms, and a System Usability Scale score of 86.59, placing the web interface in the Excellent category. The prototype passed all software and user-acceptance tests and most functional and performance tests. Two tests failed at the prototype stage: LED signal integrity (a logic-level mismatch) and fire-safety certification (constrained by the €100 budget): both identified as priorities for future revisions. |