P16414: Toilet Use Sensor
/public/

Systems Design

Table of Contents

Agenda

Team Vision for System-Level Design Phase

From our project timeline, we were going to research various power options, counter options, environmental conditions and options, and draft system options. This was all to be done before our system review.

What we did accomplish during this phase was create a functional decomposition to better show what each part of the project does. We created a morphological chart to show many options for each task our project needed to accomplish. Selection criteria was determined and we each did some preliminary benchmarking for the different sensor categories. Then we sketched some basic concept development and system architecture. Finally We created a table of risks and the project timeline for the next 3 weeks.

Systems Architecture

Risk Management

Risk Management

Functional Decomposition

Functional Decomposition

Functional Decomposition

Engineering Requirements Mapping

Engineering Requirements Template

Engineering Requirements Template

The live link is available below:

https://edge.rit.edu/edge/P16414/public/Problem%20Definition%20Documents/Engineering%20Requirements.JPG?

Morphological Chart

Morphological Chart

Morphological Chart

Selection Criteria

Benchmarking

Trigger

Trigger Benchmarking

Trigger Benchmarking

Advantages and Disadvantages of Trigger Sensors

Advantages and Disadvantages of Trigger Sensors

Temperature Sensor

Temperature Sensor Benchmarking

Temperature Sensor Benchmarking

Advantages and Disadvantages of Temperature Sensors

Advantages and Disadvantages of Temperature Sensors

Oxygen Sensor

Oxygen Level Sensor Benchmarking

Oxygen Level Sensor Benchmarking

Advantages and Disadvantages of Oxygen Level Sensors

Advantages and Disadvantages of Oxygen Level Sensors

Humidity Sensor

Humidity Sensor Benchmarking

Humidity Sensor Benchmarking

Advantages and Disadvantages of Humidity Sensors

Advantages and Disadvantages of Humidity Sensors

PH Sensor

Research has shown that constantly monitoring the pH of the pit contents is unfeasible. Reasons for this include the fact that most pH sensors are not intended for direct measurements of solids such as soil, and those that are expensive, unreliable and/or need to be cleaned and stored properly between each measurement. A possible solution may be to have the field worker acquire samples each time they visit the test site, and perform the pH level measurement elsewhere. The current sensor research, included below may still be applicable to this.

pH Sensor Benchmarking

pH Sensor Benchmarking

Advantages and Disadvantages of pH Sensors

Advantages and Disadvantages of pH Sensors

Concept Development

Trigger/Counter Module

Trigger/Counter Module

Sensor Setup within Pit

Sensor Setup within Pit

Risk Assessment

Risk Management

Risk Management

Plans for Next Phase

Project 3 Week Plan

Project 3 Week Plan


Home | Planning & Execution | Imagine RIT

Problem Definition | Systems Design | Subsystem Design | Preliminary Detailed Design | Detailed Design

Build & Test Prep | Subsystem Build & Test | Integrated System Build & Test | Integrated System Build & Test with Customer Demo | Customer Handoff & Final Project Documentation