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 SummaryHigh 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.
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 CasesThe flowchart below demonstrates the main use case for the instrumentation platform, and includes the following active groups:
- Ground Control Team is the engineering team whose main task is to operate the base station communication equipment and to launch the balloon. The base station equipment is located in the Meteor Room on campus at RIT. Team members in the Meteor Room will be in constant contact with team members launching the balloon until a successful launch. Frequent check-ins with the Retrieval Teams during balloon flight are also conducted.
- The Instrumentation Platform is the deliverable for this project and is powered on and deployed by members of the Ground Control Team.
- Retrieval Teams are responsible for tracking the Instrumentation Platform during flight using the platform’s APRS signal. Communication with the Ground Control Team in the base station can also be used for real-time platform positioning updates.
Project Goals and Key Deliverables
- Design, test, and prototype the HABIP-DAQC
- Successfully launch high altitude balloon and instrumentation platform.
- GRSS activates and enables users to find the instrumentation platform after landing.
- Measure and collect accurate sensor data throughout entirety of flight.
- Stabilize one axis of the instrumentation platform.
- Document the design and testing process for the
- PCB Schematics, Gerbers, and BOM
- CAD 3D Models and Simulations
- Firmware Source Code and Documentation
- Detailed test plan for all system components
- Detailed drawings of designs to be machined
- MATLAB and Simulink models of control algorithm
- ImagineRIT Presentation
|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. 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. here.
- The weight of the DAQCS portion of the instrument platform is within the limit of 2 pounds.
- The instrumentation platform is built within the price limit of $1500.
- The instrumentation platform complies with all FAA regulations specified for unmanned balloons (Title 14, Chapter 1, Subchapter F, Part 101, Subpart A & D).
House of QualityThe 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.
The active working document can be found here.
RisksThe 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. here.
Design Review MaterialsPresentation 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.here.
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