The document discusses designing an indoor positioning system as an alternative to the existing costly and power-hungry StarGazer localization system. It surveys different wireless technologies like Wi-Fi, Zigbee, and ultrasonic options before proposing an RSSI-based triangulation solution using TI's low-power CC2431 SoC. Some implementation issues discussed include the non-linear relationship between RSSI and distance, needing additional algorithms and an RSSI map survey, and methods for orientation and multi-level positioning detection.

1. CSCI 7000: Advanced RoboticsBy: Niket ShahIndoor Positioning SystemDesign Review

2. AgendaCurrent Localization SystemGoalSurvey of different technologiesPossible Solution: RSSI based Position EstimationPossible Solution: DetailsImplementation Issues

3. Current SystemPDP uses StarGazer ModulesOutput: [X,Y] Co-ordinates along with orientationProblems:Very CostlyPower ConsumptionForm Factor

4. GoalAlternative solution to StarGazerCost EffectiveRapid PrototypeAcceptable AccuracyScalableIntegrate with existing Localization Framework

5. Survey: TechnologiesWirelessWi-Fi based Indoor LocalizationRSSI based Triangulation: Zigbee/ISM band SoCTranscieversCSS (Chirp Spread Spectrum): NanoTron’snanLOCtransciverScene Analysis: StarGazer, Kinect/OpenSLAMUltrasonic: Cricket, ActiveBatProximity: IR, RFID

6. Possible Solution: Triangulation

7. Possible Solution: TI’s CC2431 SoC2.4 GhzZigbee, Low-Power TransceiverIn-built Hardware Localization Engine

8. IssuesRSSI vs Distance: Non-LinearityAdditional algorithms requiredSurvey of location to create RSSI MapOrientation detection (Digital Compass?)Multi Level positioning (MEMS Pressure Sensor?)Budget, Logistics

9. Thank You!