P17105: HABIP-DAQC
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Integrated System Build & Test

Table of Contents

Team Vision for Integrated System Build & Test Phase

During this phase the team had planned to continue working on the subsystems to try to achieve a level of integratability. Below are the plans that the team had for this phase:



For this phase, the team actually accomplished:

Test Results Summary

GRSS

During this phase, the Global Recovery Signaling System (GRSS) custom PCB board was ordered through Advanced Circuits as a 4-layer PCB that was created within Eagle. In addition to this, the components to populate the board were ordered and when the boards arrived, a single board was fully populated and soldered. Population and soldering were accomplished through the CIMS build SMT Lab. During population, it was realized that the battery holder had reverse polarity and a new battery holder was ordered and soldered to the board. Full functionality for the board was tested utilizing jumper wires and sound and light measurements were taken via phone apps including an outdoor test during sunlight conditions with an app to measure distance. The results show promise for fulfilling requirements and providing a good chance the platform is recovered.

Populated Board

GRSS Populated Top View

GRSS Populated Top View


GRSS Populated Bottom View

GRSS Populated Bottom View


Demo Video

GRSS Testing Setup

GRSS Testing Setup


GRSS Full Prototype Demo

Testing

The GRSS sound level in Decibels and LED brightness were then measured via an iPhone app in front of the buzzer and then outside in a normal environment with a running app to measure distance it could be heard/seen. For both Physical Tests, the Buzzer environment and weather environment can be seen below along with the distance tracker. Results show that the buzzer is at an average 106dB and the LEDs give off 20000 plus lumens at close range and in a 85.7dB environment, the GRSS could be heard from 0.2 miles or roughly 1000 ft and seen as well.
GRSS Sound Testing Environment

GRSS Sound Testing Environment


GRSS Testing Weather 1

GRSS Testing Weather 1


GRSS Testing Weather 2

GRSS Testing Weather 2


Walking Distance

Walking Distance


Phone Measurement
Close up Sound Level

Close up Sound Level


Close up Lux Level

Close up Lux Level


RasPi HAT

Bare PCBs

RasPi HAT Bare- Top

RasPi HAT Bare- Top

RasPi HAT Bare - Bottom

RasPi HAT Bare - Bottom

Assembled PCBs

RasPi HAT Assembled- Top

RasPi HAT Assembled- Top

RasPi HAT Assembled - Bottom

RasPi HAT Assembled - Bottom

RasPi HAT Full Stack

RasPi HAT Full Stack

Verification Tests

RasPi HAT - Power-On Test

RasPi HAT - Power-On Test

RasPi HAT - All Sensors Detected

RasPi HAT - All Sensors Detected

RasPi HAT - 3hour Temperature Sensor Test

RasPi HAT - 3hour Temperature Sensor Test

MSP430 Host Board

MSP430 Host Board - Top Bare Board

MSP430 Host Board - Top Bare Board


MSP430 Host Board - Bottom Bare Board

MSP430 Host Board - Bottom Bare Board


MSP430 Host Board - Assembling Board

MSP430 Host Board - Assembling Board


MSP430 Host Board - Fully Assembled Board

MSP430 Host Board - Fully Assembled Board


MSP430 Host Board - Side Fully Assembled Board

MSP430 Host Board - Side Fully Assembled Board


MSP430 Host Board - Able to program MSP430s via Spy Bi-Wire

MSP430 Host Board - Able to program MSP430s via Spy Bi-Wire


Balloon Pressure Sensor

The Balloon Pressure Sensor board has not yet been assembled. However, the board is very simple and uses sensors already validated on the RasPi HAT, so failure risk is very low.

Camera Adapter

Camera Adapter Assembled - Top

Camera Adapter Assembled - Top

Camera Adapter - Bottom

Camera Adapter - Bottom

Reaction Wheel

During this phase, the reaction wheel has been updated. A motor stand was tested and created using a tripod, which may be seen below:
Reaction Wheel Test Stand

Reaction Wheel Test Stand


A motor mount is currently being designed in Solidworks. This motor mount was determined to be necessary, as upon testing the reaction wheel, the foam of the layer began to shred itself apart from the motion of the motor. Therefore,a design in which the motor is only mounted to the mount, and not the instrumentation platform foam layer, is needed. This would minimize possible damage to the motor.
After doing different types of testing, including loaded and no-load, the model for the motor, seen below, was determined:
Simulink Model of the Reaction Wheel

Simulink Model of the Reaction Wheel


Plot of the Simulated, Demanded, and Actual Motor Movement

Plot of the Simulated, Demanded, and Actual Motor Movement


It can be seen that the motor, in a no-load condition, follows the curve of the expected and actual motor speed very well. An expected output of the movement of the entire instrumentation platform may be seen as well.
Plot of the Simulated Instrumentation Platform Movement

Plot of the Simulated Instrumentation Platform Movement

Risk and Problem Tracking

Updated Risk Management

Updated Risk Management

Updated Risk Management can be found here.
Updated Problem Tracking

Updated Problem Tracking

Updated Problem Tracking can be found here.

Updates on the Technical Report

For senior design, a technical report is to be written. With the option to submit to a conference, the team looked into applying to the American Institute of Aeronautics and Astronautics (AIAA) Balloon Systems Conference. However, upon reaching out to the direct contact for the conference, it was discovered that the submission date for the abstract was in October. It was then determined by Dr. Patru that the team would continue to provide a report for MSD in the format required by the conference, so that it may be edited by later teams and submitted for review by the AIAA.
The call for submissions site may be found by clicking here.

Pre-Flight Checklist

Page 1 of the Checklist

Page 1 of the Checklist

Page 2 of the Checklist

Page 2 of the Checklist

Page 3 of the Checklist

Page 3 of the Checklist


To see the checklist document, please click here.

Plans for next phase

Updated Gantt Chart

Updated Gantt Chart

Microsoft Project Gantt chart file can be found here.

Individual 3 Week Plans

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

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

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

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


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