Intra-Building Navigation P11016 Shannon Carswell (Project Lead)Tim Garvin Dan ParisDan Stanley

Overview  Project Description  Customer Needs  Engineering Specifications  Concept Summary  System Architecture  Design Summary  Project Evaluation  Recommendations

Project Description  Objective  Design and build an intra-building navigation device to aid the blind and visually impaired.

Project Description: Customer Needs Cust. Need # ImportanceDescriptionComments/Status CN19Identify all roomsCombination of CN1-CN5 CN69Help get out of classroom once inmay not be possible CN89Easy to use CN99Portable CN119Accurate directions CN149Device reacts within a couple feet of locationdependent upon reader/tag selection CN159Needs hands free modedependent upon interface group/size of reader

Project Description: Engineering Specifications Engr. Spec. # Importa nce Source Specification (description) Unit Measur e Margin Value Ideal Value Comments/Status ES19CN1-CN5 Device contains complete map (nodal) of building 9binaryTRUE ES29CN1-CN5Number of Identifiable Locationsnumber ES39 CN14/CN 6Read Range < 5mm35 ES59CN8Mean Learning time (at imagine RIT)minutes6020 ES69CN9Weightounces86Lighter is better ES89CN11Navigation Endpoint Precisionm21Arm's Length ES99CN11Location ID Repeatabilitypercent ES109CN11Repeatability of directionspercent ES149CN14 Latency from navigation state change and UI updatems ES159 CN9/CN1 5PCB sizeinches4 ” x3 ” <= 3 ” x2 ”

Concept Summary  RFID  Tags placed to mark all rooms  Compass  Initial Bearing for accurate directions

System Architecture

Design Summary  RFID and Compass  Microcontroller and Interfaces  Simple 8-bit MCU  Initial Plan: I 2 C  Secondary Plan: Laptop Interface  Navigation Algorithm  Graph Traversal  Area Navigation

System Testing Results  RFID  Read Range 5V Power Supply USB  Surface Type ‘G’ Glass Brick ‘2x2’ with paper backing Painted Cinderblock Drywall ‘Short’ Plastic Issue Metal

System Testing Results  Engineering Specifications  End Point Precision  Latency  Repeatability Directions Location ID  Mean Learning Time

Project Evaluation: State of Design  Complete  Proven Concept  RFID Testing  Database Creation  Tag Layout of 2 nd Floor  Test Plans for Engineering Specifications  RFID Interface with Laptop  Incomplete  Microcontroller Interfaces w/ I 2 C  Navigation Algorithm  Engineering Specification Testing

Project Evaluation: Project Plan Hold-Ups  Microcontroller / Interfaces  Nav Algorithm  Testing

Project Evaluation: Budget Bill or Materials PartManufacturerUnit PriceQuantityTotal PriceActual Total RFID ReaderSkyeTek$ RFID AntennaAntenna Factor$8.931 $0.00 "G" Inlay: 50 packAlien$1001$ "2x2" Inlay: 50 packAlien$1001$ "Short" Inlay: 50 packAlien$1001$100.00$0.00 "Squiglette" Inlay: 50 packAlien$1001$100.00$0.00 "Squiggle" Inlay: 50 packAlien$1001$100.00$0.00 MMXC to SMA ConnectorAmphonel$ Microcontroller and Dev KitMicrochip Technology$ CompassHoneyWell$ Voltage RegulatorFairchild Semiconductors$0.631 $0.00 RFID Reader Dev BoardSKYEtek$ RFID Reader SoftwareSkyeTek$ Vector Board $8.051 RPSMA to Sma connectorMouser$6.321 Total Price$1,363.27$1, Estimated Shipping Costs$100 Total$1,153.71

Recommendations  Integration with P11015 and P11017  More research into RFID tags on metal  Reconsider microcontroller interface (SPI, serial)  Address Customer Need: Help Get out of Classroom Once in  Expand Database and Navigation algorithm to all floors of the James E. Gleason Building