Meeting Purpose: To obtain feedback on the detailed design aspect of the Intra-Building Navigation System. To discuss the electrical and software aspects of the detailed design, as well as the steps to be taken in testing and development.
Materials to be reviewed:
Architectural Diagram: Revision 1
Process Diagram: Revision 1
Bill of Materials: Revision 1
Product Selection: Revision 1
Risk Assessment: Revision 2
Test Plan: Revision 1
Feasibility Analysis: Revision 1
Meeting Date: February 11, 2011
Meeting Location: 09-4425
Meeting time: 3pm -5pm
Timeline:
Meeting TimelineStart time / Topic of Review / Required Attendees
3:00 / Introduction / All
3:05 / Architecture and Process Diagram (Review) / All
3:10 / Bill of Materials / Dr. Debartolo
3:15 / RFID Components (Reader, Tags, Antenna) / Dr. Debartolo, Dr. Sahin
3:35 / Microcontroller / Dr. Debartolo, Dr. Melton
3:50 / Compass / Dr. Debartolo, Dr. Hsu
3:55 / Interface of Components / All
4:05 / Software Design / Dr. Debartolo, Dr. Milton, Dr. Hsu
4:15 / Electrical Design / Dr. Debartolo, Dr. Sahin
4:25 / Test Plan / All
4:35 / Risk Assessment / All
4:40 / Feasibility Analysis / All
4:55 / Plans for MSD II / Dr. Debartolo
Architecture Diagram:
Process Diagram:
Bill of Materials:
Product Selection: RFID Reader
Product Selection: RFID ReaderCriteria / Skyetek / Skyetek / Skyetek
Model / M9 Module (CF) / M7 Module / M9 Module (MH)
ReadRange / 3.5m / 2m / 3.5m
I/O Pins / 7 / 4 / 4
Size (mm) / 66x36x5 / 53x36x9 / 70x53x9
Weight / 10.7g / 7g / 12.5g
Frequency / 862-955 MHZ / 862-955 MHZ / 862-955 MHZ
Supply voltage / 4.5-5.5V / 5V / 4.5-5.5V
Tag Compatibility / EPC gen1, ECP gen2 / EPC gen1, ECP gen2 / EPC gen1, ECP gen2
Price / $274.00 / $217.00 / $274.00
Order? / NO / NO / YES
Cost / $274.00
Product Selection: RFID Tags
Product Selection: RFID TagsCriteria / Alien / Alien / Alien / Alien / Alien / Avery Denison / Avery Denison / Avery Denison / Avery Denison
Model / "G" / "Squiggle" / Squiglette / "Short" / "2x2" / AD224 / AD641 / AD824 / AD840
Frequency / 840-960MHz / 840-960MHz / 840-960MHz / 840-960MHz / 840-960MHz / 860-960MHZ / 860-960MHZ / 860-960MHZ / 860-960MHZ
ReadRanges / 20ft / 20ft / 20ft / 20ft / 20ft / 26ft / 17ft / 14ft / 26ft
Size / 3.8x.9 / 3.73x.319 / 2.76x.37 / 2.76x.67 / 1.73x1.81 / 4x0.3 / 2.76x2.76 / 1.18x1.96 / 1.5x3.7
factory programmed UID code / yes / yes / yes / yes / yes / yes / yes / yes / yes
# of bits in UID / 64 / 64 / 64 / 64 / 64 / 32 / 32 / 32 / 32
Generation / Gen 2 / Gen 2 / Gen 2 / Gen 2 / Gen 2 / GEN2 / GEN2 / GEN2 / GEN2
Sample Packs? / yes / yes / yes / yes / yes / no / no / no / no
Order? / YES / YES / YES / YES / YES / No / No / No / No
Cost / $200 for all 5 packs of 50 tags each
Product Selection: Antenna
Product selection: AntennasCriteria / Tagoalas / Tagoalas / Tagoalas / Linx technology / antenna factor / rf antennas / USRFID / LCOM / Yageo
Man. Number / GSA.8822-A30111 / FXP14.02.-0100A / MA.203.A.-A301111 / ANT-DB1-VDP-ND / ANT-916-MHW / ANT-GSMQB-MMCX / CVS-915 / 88M447 / 15J6656
Frequency / 860-960MHz / 880-960MHz / 800MHz-2.2GHz / 860-960Mhz / 824-960MHz / 900MHz / 915MHz / 900Mhz / 850-950Mhz
Polarization / linear / linear / RHCP / linear / linear / linear / linear / linear / linear
Cable Connection / SMA / MHFII / RG174 / SMA / SMA / MMCX / MMCX / SMA / surface mount
impedance / 50Ω / 50Ω / 50Ω / 50Ω / 50Ω / 50Ω / 50Ω / 50Ω / 50Ω
size(mm) / 105.7x14x6.5 / 70x20x.1 / diam 55.1 / 115x22x4.52 / 4"x.7" / 110x20x5 / 100x32x9 / 216x216 / 17x14
VSWR / 2 / 2.5 / <2 / 1.5 / <1.5 / 2 / 2 / 1.5 / 2
dB/dBi / 3dbi / 1.5dBi / 30dB / ? / ? / 1dB / 2.5dBi / 8dB / 1.5dB
Weight / 40g / 1.5g / ? / ? / ? / ? / light weight / ?
power / 10W / 5W / ? / ? / ? / ? / 10W / 25W / ?
optimum rangs / ? / ? / ? / ? / ? / ? / 2ft / ? / ?
lead time / none / none / none / none / none / 3 weeks / none / none / none
price / $6.75 / $9.45 / $10.80 / $8.93 / $11.76 / $6.75 / $38 / $68.31 / $12.84
Order? / NO / NO / NO / YES / NO / NO / NO / NO / NO
Cost / FREE
Product Selection: Compass
Product Selection: CompassCriteria / Option 1 / Option 2 / Option 3
Brand / Analog Devices / Honeywell / Freescale
Model / ADIS16400 / HMC58883L / MAG3110
3 axis output / YES / YES / YES
Interface / Serial(SPI-capable) / I2C / I2C
Interface MC Compatible / YES / YES / YES
Voltage Required / 4.75-5.25V / 2.16-3.6V / 0.95-3.6V
Current Draw / 70mA / 110uA
Max Measurement Frequency / 333Hz / 160Hz / 80Hz
Package Type / 24-PIN Chip / surface mount / surface mount
Package Size / 23x23x23mm / 2.85x2.85x3.00mm / 2.00x2.00x0.85mm
Order? / NO / BACKUP / YES
Cost / ~470$ / 20$ / negligible
Product Selection: Microcontroller
Product Selection: MicrocontrollerCriteria / PIC24FJ64GB002 / PIC18F26K22 / PIC18F8722
Data Bus Width / 16-bit / 8-bit / 8-bit
Voltage / 3V / 5V / 5V
I2C / 2 / 2 / 2
Pulse-Width Modulation Pins / 5 / 5 / 5
Low Power Modes / YES / YES / YES
Pins / 28 / 28 / 80
Socket Option / YES / YES / NO
SMT Option / YES / YES / YES
On-Board Flash / 64kB / 64kB / 128kB
RAM / 8kB / 4kB / 4kB
Pre-Fab board available? / NO / NO / YES
Small Pre-Fab Board Available? / NO / NO / NO
Risk Assessment:
ID / Risk Item / Effect / Cause / Likelihood / Severity / Importance / Action to minimize risk1 / Read Range for Tags too Large/Small / Device not accurate / Inaccurate Specs / 1 / 2 / 2 / Test read range, get samples,many tag types
2 / Reader doesn't interact with tags / Device will not function / compatibility specs incorrect / 1 / 3 / 3 / call companies to ensure compatibility
3 / Navigation Algorithm Fails / User sent to wrong Location / wrong algorithm / 1 / 3 / 3 / check algorithm with expert
4 / Database contains inaccurate information / User sent to wrong Location / input mistake / 1 / 3 / 3 / enter input w/ caution and double check
5 / Battery Life too short / device shuts off during operation / too much power consumption / 2 / 3 / 6 / check component specifications
6 / Database doesn't hold all information / all rooms not identified / too small / 1 / 2 / 2 / require microcontroller to have expandable memory
7 / Compass doesn't interface properly / initial bearing wrong / compass interface wrong / 1 / 3 / 3 / double check compass
8 / Microcontroller doesn't interface / Vital information lost / not enough pins / 1 / 3 / 3 / choose 2nd micro., buy correct RFID reader
9 / No RFID expert on team / team members must research / lack of knowledge / 3 / 1 / 3 / get expertise advice
10 / Parts ordered too late / Off Schedule / inadequate planning / 1 / 2 / 2 / order early and plan ahead
11 / Parts Arrived Late / Off Schedule / Inaccurate shipping time / 1 / 2 / 2 / order early
12 / Inaccurate Directions / User sent to wrong Location / Inaccurate measurements / 2 / 3 / 6 / Double check Measurements
13 / EDGE/Computer Crashes / Lose all previous work / Bad technology / 1 / 3 / 3 / Have multiple back-up copies
14 / Lack of Customer Communication / undesirable product / Lack of customers / 3 / 2 / 6 / Look for more customers
15 / Lack of Inter-Group Communication / Not able to Interface / Failure to Communicate / 1 / 1 / 1 / appoint interface engineer
16 / Time Constraint / Device not completed / semester is only 10 weeks long / 2 / 3 / 6 / Re-evaluate deadlines during process
17 / Software is Unstable / Device not usable / poor programming / 1 / 3 / 3 / Allow enough time for programming
18 / Team Members Incapacitated / Loss of Team Member / sick/ disability / 1 / 2 / 2 / Share knowledge
19 / Microcontroller slow / Navigation Latency increase / Wrong microcontroller / 2 / 1 / 2 / optimize algorithm
20 / User Injury / Legal Complications / faulty directions / 1 / 3 / 3 / Design a safe test course
21 / Antenna doesn't have large enough range / System doesn't perform to spec / wrong antenna configuration / 2 / 2 / 4 / Place tags closer together
22 / Antenna doesn't interface properly / System doesn’t work / wrong type of antenna / 1 / 3 / 3 / contact companies regarding antenna
23 / Incomplete Order / Missing Crucial Part of System / misleading data sheet, incorrect inference / 3 / 2 / 6 / contact companies before ordering
Test Plan: See Attached document
KGCOE MSDPage 1 of 7Technical Review Agenda