Intra-Building Navigation P11016Shannon Carswell (Project Lead) Tim GarvinDan Paris Dan 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 #

Importance Description Comments/Status

CN1 9 Identify all rooms Combination of CN1-CN5

CN6 9 Help get out of classroom once in may not be possible

CN8 9 Easy to use  

CN9 9 Portable  

CN11 9 Accurate directions  

CN14 9 Device reacts within a couple feet of location dependent upon reader/tag selection

CN15 9 Needs hands free mode dependent upon interface group/size of reader

Project Description: Engineering SpecificationsEngr. Spec.

#

Importance

Source Specification (description)Unit

MeasureMargin Value

Ideal Value

Comments/Status

ES1 9 CN1-CN5Device contains complete map (nodal) of building 9 binary TRUE TRUE  

ES2 9 CN1-CN5 Number of Identifiable Locations number 4096 65536  

ES3 9CN14/CN6 Read Range < 5m m 3 5  

ES5 9 CN8 Mean Learning time (at imagine RIT) minutes 60 20  

ES6 9 CN9 Weight ounces 8 6 Lighter is better

ES8 9 CN11 Navigation Endpoint Precision m 2 1 Arm's Length

ES9 9 CN11 Location ID Repeatability percent 99 99.9  

ES10 9 CN11 Repeatability of directions percent 99 99.9  

ES14 9 CN14Latency from navigation state change and UI update ms 1000 250  

ES15 9CN9/CN15 PCB size inches 4”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: I2C 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

Read Range for Alien 'G' Inlay with PS

0

10

20

30

40

50

600˚

15˚30˚

45˚

60˚

75˚

90˚

105˚

120˚

135˚

150˚165˚

180˚195˚210˚

225˚

240˚

255˚

270˚

285˚

300˚

315˚

330˚

345˚360˚

A50

A49

A48

Read Range for Alien "G" Inlay with USB

0

10

20

30

40

500˚

15˚30˚

45˚

60˚

75˚

90˚

105˚

120˚

135˚

150˚165˚

180˚195˚210˚

225˚

240˚

255˚

270˚

285˚

300˚

315˚

330˚

345˚360˚

A50

A49

A48

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 2nd Floor Test Plans for

Engineering Specifications

RFID Interface with Laptop

Incomplete Microcontroller

Interfaces w/ I2C Navigation Algorithm Engineering

Specification Testing

Project Evaluation: Project Plan

Hold-Ups Microcontroller / Interfaces Nav Algorithm Testing

Project Evaluation: Budget

Bill or Materials

Part Manufacturer Unit Price Quantity Total Price Actual Total

RFID Reader SkyeTek $274.00 1 $274.00 $274.00

RFID Antenna Antenna Factor $8.93 1 $8.93 $0.00

"G" Inlay: 50 pack Alien $100 1 $100.00 $100.00

"2x2" Inlay: 50 pack Alien $100 1 $100.00 $100.00

"Short" Inlay: 50 pack Alien $100 1 $100.00 $0.00

"Squiglette" Inlay: 50 pack Alien $100 1 $100.00 $0.00

"Squiggle" Inlay: 50 pack Alien $100 1 $100.00 $0.00

MMXC to SMA Connector Amphonel $12.39 1 $12.39 $12.39

Microcontroller and Dev Kit Microchip Technology $165.00 1 $165.00 $165.00

Compass HoneyWell $39.95 1 $39.95 $39.95

Voltage Regulator Fairchild Semiconductors $0.63 1 $0.63 $0.00

RFID Reader Dev Board SKYEtek $198.00 1 $198.00 $198.00

RFID Reader Software SkyeTek $150.00 1 $150.00 $150.00

Vector Board   $8.05 1 $8.05 $8.05

RPSMA to Sma connector Mouser $6.32 1 $6.32 $6.32

 

Total Price $1,363.27 $1,053.71

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