sp t Critical Design Review sp t Team Saurabh Gupta PCB, - PowerPoint PPT Presentation

sp t Critical Design Review

sp t Team Saurabh Gupta PCB, Power Bryan Lavin-Parmenter Software Architecture Brandon Pon PCB, SoM Neil O’Bryan Peripherals

sp t Vision To build a device that will allow astronauts to path- fi nd on unknown terrains in space

sp t Design Assumptions No trails, roads, or landmarks for way- fi nding Localization is available (i.e. GPS) Astronauts are walking, not traversing via rover Astronauts are partially physically encumbered Astronauts are not just navigating, but are multi-tasking while navigating terrain

sp t Design System Architecture Wireless Antenna Home Base Direct User Display Tactile Control Power GPS with RTK RTK Wireless Dual-lead 40-pin Direct SPI Communication Direct I2C SPI Antenna IMU SoM Transceiver I2C I2C SPI RS-232 Haptic Motor Range fi nder Camera Biosensor

sp t Design PCB

sp t Design Enclosure 20 2.6 10 7.6 12.1

sp t Design Software Architecture Add new data to local Home base relays Perform peripheral- storage, remove old information speci fi c function data other thread multiple threads Home base fi nd and Peripheral GPS Relay to home base Boot up sanity check monitoring to get RTK data display input Get coordinates and Determine if object relay to home base nearby Alert user

sp t Testing Software Methodology: Test-Driven Development TDD: Testing before implementation Write code tests that fail before writing new implementation logic 2P Review: All code must be reviewed and critiqued by another team member

sp t Flow In Range of POI while marking enter POI range start the mark leave POI range fi nish or cancel the mark In Range Marking POI fi nish the mark of POI start the mark enter POI range leave POI range, cancel cancel the mark alert Idle

sp t Bill of Materials 90 SMT + PCB Fabrication 65 PYNQ XBee Transceiver 43 XBee Antenna 8 Display 30 GPS Breakout 240 GPS Antenna 12 Range fi nder 55 Haptic Motor + Controller 10 20 Heart Rate Sensor 69 Camera approx. $650 Total

sp t Timeline Winter 2018 Interface PCB with peripherals Continue building software architecture and testing protocols Prepare for PCB spin #2

sp t Collaborators Dr. Luke Theogarajan University of California, Santa Barbara Dr. Jessica Marquez NASA Dr. Richard Joyce NASA

sp t Q & A