P17105: HABIP-DAQC
/public/

Problem Definition

Table of Contents

Team Vision for Problem Definition Phase

During this phase, the team planned on working on the outlining and detailing of the needs and requirements for the project. Upon the completion of this page, the customer and engineering requirements have been updated to the best of the team’s knowledge and will be further updated as the year brings forward more needs that were not thought of prior to the problem definition design review.

The key stakeholder, Dr. Dorin Patru, was interviewed at the beginning of this phase, allowing the team to outline the key goals and deliverables, as well as constraints, and customer and engineering requirements. A house of quality, showing the relationships between the customer and engineering requirements, was also completed by the end of the first phase. The final assignments finished by the team members were the individual and team plans for the next phase.

Project Summary

High altitude balloons are used by researchers and hobbyists to explore near space altitudes while operating within an affordable budget. The RIT Space Exploration (SPEX) group is planning to launch a high altitude balloon into near space environment (>100,000 ft.) in order to test CubeSat subsystems. Instrumentation for such test flights can be designed to collect, record and transmit various sensor data including temperature, pressure and images. An instrumentation platform will be constructed to collect this vital data along with transporting the experimental subsystem modules for future operations.

The goal of this project is to create an instrumentation platform capable of sustaining high altitude environments and capturing/storing sensor data for transmission. Captured data includes temperature, pressure, inertial measurements, and digital images. Select sensor data will be overlaid on the captured video stream and sent to the communications subsystem for transmission to a ground station. Captured sensor data will also be stored to an SD card and packaged for transmission. A reaction wheel assembly will be designed and implemented to stabilize the instrumentation platform in one axis. The resulting design must be fully functional in conjunction with HABIP-COMMS, while operating nominally up to 120,000 feet elevation for at least 3 hours. The design must weigh less than 2 pounds and the ground recovery signaling system (GRSS) must be operational for 24 hours after launch.

To view the one page project summary, please click here.

Project Background

The Rochester Institute of Technology Space Exploration Team (SPEX) and Project METEOR are two groups that have designed, built, and launched high altitude balloons in the past. These high altitude balloons flew equipped with instrumentation platforms that transmitted video, position, temperature, pressure, humidity, and altitude. However, each individually had issues during their flights, including spinning uncontrollably in certain portions of the atmosphere, as well as sensors not taking accurate data due to the atmospheric temperature conditions. Presently, other universities, companies, and people have launched high altitude balloons successfully and have been able to achieve accurate data acquisition.

Use Cases

The flowchart below demonstrates the main use case for the instrumentation platform, and includes the following active groups:
Use Case Scenario

Use Case Scenario

Project Goals and Key Deliverables

Key Stakeholders

Key Stakeholders

Key Stakeholders

Customer Interviews

Customer Interviews
Interview Notes - 8/25/2016
Interview Notes - 8/30/2016

Customer Requirements (Needs)

The following Customer Requirements were developed from the Project Readiness Package along with feedback from a customer interview.
Customer Requirements

Customer Requirements

The active working document can be found here.

Engineering Requirements (Metrics & Specifications)

The following Engineering Requirements define specific metrics for various subsystems within the instrumentation platform and can all be linked back to a Customer Requirement.
Engineering Requirements

Engineering Requirements

The active working document can be found here.

Constraints

Project Constraints

Project Constraints

House of Quality

The following House of Quality document defines the correlation between engineering requirements and customer requirements to help visualize how the product is living up to customer needs.
House of Quality

House of Quality

The active working document can be found here.

Risks

The table below shows several risks that were defined by the team that will need to be managed in order to succeed in the design and build of the instrumentation platform. The likelihood, severity, and importance of each risk is also outlined in the table.
Risk Management

Risk Management

The active working document can be found here.

Design Review Materials

Presentation slides for the Week 3 Problem Definition Review can be found here.

Plans for Next Phase

The following image shows a Gantt Chart for the remaining tasks to be completed during MSD 1.

Gantt Chart

Gantt Chart

The active working document can be found here.

Individual Plans

Sydney Kaminski's Three Week Plan: Sydney's Goals

Steven Giewont's Three Week Plan: Steven's Goals

Lincoln Glauser's Three Week Plan: Lincoln's Goals

Chris Schwab's Three Week Plan: Chris's Goals


Home | Planning & Execution | Imagine RIT

Problem Definition | Systems Design | Preliminary Detailed Design | Detailed Design | Component Schematics and Drawings

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