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Smart Door Unlocking System Using Knock Detection and User Alerts

The MSP430 project introduces a smart door unlocking system that activates upon detecting a specific knocking rhythm. It features a visual status indicator for the user and alerts when multiple incorrect rhythms are attempted, enhancing security. The system allows for a manual override from the inside for convenience. The software, written in C, utilizes an ADC to sample microphone voltage for accurate knock detection, which includes determining authentic knocks, recognizing patterns within an accepted timing range, and making decisions to unlock the door or signal an intrusion.

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Smart Door Unlocking System Using Knock Detection and User Alerts

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Presentation Transcript

  1. The Digital Door ManGroup 5, ECE 511 MSP430 Project Unlocks Door when a preprogrammed knocking rhythm is detected. Provides visual Status for the User. Alerts when multiple failing knocking rhythms are tried. Allows for Manual override from the inside.

  2. Block Diagram

  3. Software • Witten in C • ADC to Sample the Microphone voltage for knock detection. • Detection( ): Determines when a real knock has occurred and signals recognition block. • Recognition() : Determine if the timing is within an accepted range or not. • Decision(): Unlocks the door, or signals and intrusion.

  4. TimeLine

  5. The Big Picture

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