Indoor Localization Systems
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CSCI 7000 : ADVANCED ROBOTICS
BY: NIKET SHAH
Indoor Positioning SystemDesign Review
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Agenda
Current Localization System
Goal
Survey of different technologies
Possible Solution: RSSI based Position Estimation
Possible Solution: Details
Implementation Issues
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Current System
PDP uses StarGazer Modules
Output: [X,Y] Co-ordinates along with orientation
Problems: Very Costly Power Consumption Form Factor
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Goal
Alternative solution to StarGazer Cost Effective Rapid Prototype Acceptable Accuracy Scalable
Integrate with existing Localization Framework
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Survey: Technologies
Wireless Wi-Fi based Indoor Localization RSSI based Triangulation: Zigbee/ISM band SoC
Transcievers CSS (Chirp Spread Spectrum): NanoTron’s nanLOC
transciver
Scene Analysis: StarGazer, Kinect/OpenSLAM
Ultrasonic: Cricket, ActiveBat
Proximity: IR, RFID
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Possible Solution: Triangulation
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Possible Solution: TI’s CC2431 SoC
2.4 Ghz Zigbee, Low-Power TransceiverIn-built Hardware Localization Engine
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Issues
RSSI vs Distance: Non-Linearity Additional algorithms required Survey of location to create RSSI Map
Orientation detection (Digital Compass?)
Multi Level positioning (MEMS Pressure Sensor?)
Budget, Logistics
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Thank You!