P17345: Deployable Noise Meter
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Systems Design

Table of Contents

Team Vision for System-Level Design Phase

During the system design phase, we plan to develop a series of potential design implementations that will allow the device to meet the criteria of being deployable, portable, and capable of capturing both audible and visual excitement. Concepts will be developed based on the functional decomposition of the device which will be selected based on feasibility. We also planned to reach out to faculty and staff at RIT to find further advice with regard to our project. In addition we plan to attend the NTID event to take preliminary visual and audio measurements.

Accomplishments:

  1. Came up with a select few of possible concept designs
  2. Developed a method of measuring silent applause
  3. Began feasibility of video analysis
  4. Taken initial feasibility measurements for audio analysis
  5. Developed selection criteria
  6. Began to contact experts for advice
  7. Completed assigned tasks for MSD

Functional Decomposition

Morphological Chart and Concept Selection

  1. The working live morphological can be found here: Morphological Chart

Concept Selection

  1. Price
  2. Ease of Use
  3. Inclusiveness of all students
  4. Accuracy/ Repeatability/ Reliability
  5. Safety
  6. Does not disrupt audience natural state
  7. Size of System

Systems Architecture

Flow of Energy

Flow of Information

Concept Drawing: Drone

Details:
  1. Wireless
  2. Mounted camera
  3. Mounted microphone
  4. Battery supply
  5. Displays with projector

Concept Drawing: Beach Ball

Details:
  1. Wireless
  2. Accelerometer
  3. Mounted microphone
  4. Battery supply
  5. Displays with projector

Concept Drawing: Device Array

Details:
  1. Webcam array
  2. Projector
  3. Microphone array
  4. Ethernet
  5. Microcontroller
  6. Wall supply

Concept Drawing: Tripod

Details:
  1. Parabolic microphone array
  2. Camera pointed at NTID
  3. Hardwire
  4. Projector display
  5. Wall supply

Designs and Flowcharts

This flowchart shows the high-level view of the elements required to build and operate of the device.

Benchmarking

  1. The working live benchmarking can be found here: Benchmarking for both audio and visual

Audio

Visual

Concept Development

  1. The working live pugh charts can be found here: Pugh Charts

Pugh Chart with Drone as Datum

Pugh Chart with Device Array as Datum

Pugh Chart with Beach Ball as Datum

Pugh Chart with Tripod as Datum

Feasibility: Prototyping, Analysis, Simulation

Testing Sounds Levels

These trails were taken in the senior design center when it was full and people were talking and the when it was empty with 2 people talking.

A live document can be found here:Audio Test data

Testing Visual Excitement Levels

We took a video of ASL applause. We have began testing a method of analysis of video. This includes DFT to do spectrum analysis. Do this a FFT algorithm will be used. This is still in the process.

A link to the video being used can be found here: Visual Testing Video

Risk Assessment

A link to the live document can be found here: System Design Risk Management

Design Review Materials

A link to the to the System Design Review presentation can be found here: Systems Design Review

Plans for next phase


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