Real Time Location System with ZigBee

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Information about Real Time Location System with ZigBee
Technology

Published on June 22, 2009

Author: mihaigheza

Source: slideshare.net

Description

Mihai Gheza's BSc Diploma Project at "Transilvania" University of Brasov, Romania

A prototype of RTLS (Real Time Location System) using the ZigBee wireless mesh networking protocol, Received Signal Strength (RSS) for distance estimation and Trilateration for positioning.

Studied with a Texas Instruments CC2420 Development Kit.

Real Time Location System Case Study: ZigBee System-on-Chip Solution TRANSILVANIA UNIVERSITY OF BRAŞOV FACULTY OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE Study programme: Electrical Engineering and Computers - DIPLOMA PROJECT - PROJECT ADVISOR, GRADUATE, Prof. Dr. eng. MORARU Sorin Aurel GHEZA Mihai Alexandru   2009

Contents Objectives Contributions Proof of Concept Real Time Location Systems (RTLS) ZigBee Mesh Networking Protocol Texas Instruments Hardware Received Signal Strength (RSS) Method Trilateration Location Propagation Algorithm Conclusions 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Objectives

Contributions

Proof of Concept

Real Time Location Systems (RTLS)

ZigBee Mesh Networking Protocol

Texas Instruments Hardware

Received Signal Strength (RSS) Method

Trilateration

Location Propagation Algorithm

Conclusions

Objectives Study RTLS options with wireless mesh networking , distance & positioning methods D etermine the possibilites using available market hardware I nvestigate the accuracy of distance and positioning measurement s 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Study RTLS options with wireless mesh networking , distance & positioning methods

D etermine the possibilites using available market hardware

I nvestigate the accuracy of distance and positioning measurement s

Contributions Studied ZigBee mesh networking, RSSI & trilateration algorithm Created prototype of RTLS using Texas Instruments CC2420 DK D emonstrat ed strong correlation between the RSS and distance 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Studied ZigBee mesh networking, RSSI & trilateration algorithm

Created prototype of RTLS using Texas Instruments CC2420 DK

D emonstrat ed strong correlation between the RSS and distance

Proof of Concept 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Real Time Location Systems Personnel Tracking (corporate environments) Logistics (alternative to barcodes) Hospitals (nearest medic) Industrial & Home Automation (remotes) Animal Tracking & Theft Prevention (cattle ranch) Robotics Military 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Personnel Tracking (corporate environments)

Logistics (alternative to barcodes)

Hospitals (nearest medic)

Industrial & Home Automation (remotes)

Animal Tracking & Theft Prevention (cattle ranch)

Robotics

Military

ZigBee Mesh Networking Protocol Self Healing Mesh Network (rerouting) Reliable (O-QPSK, DSSS, CSMA-CA , FCS) Cheap (X$, 2.4GHz) Low Power Consumption (shelf battery) Secure (AES) Open Global Standard (ZigBee Alliance) 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Self Healing Mesh Network (rerouting)

Reliable (O-QPSK, DSSS, CSMA-CA , FCS)

Cheap (X$, 2.4GHz)

Low Power Consumption (shelf battery)

Secure (AES)

Open Global Standard (ZigBee Alliance)

Texas Instruments Hardware True single-chip RF transceiver ( 2.4GHz IEEE 802.15.4 compliant ) DSSS baseband modem (250 kbps data rate) Low current consumption (RX/TX ~ 18mA) Digital RSSI / LQI support Accesible Development Kit (~1500$) Evaluation Module, Board & PC connections 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

True single-chip RF transceiver ( 2.4GHz IEEE 802.15.4 compliant )

DSSS baseband modem (250 kbps data rate)

Low current consumption (RX/TX ~ 18mA)

Digital RSSI / LQI support

Accesible Development Kit (~1500$)

Evaluation Module, Board & PC connections

Received Signal Strength Method 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Trilateration Algorithm 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Location Propagation Step 1 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Location Propagation Step 2 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Location Propagation Step 3 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Location Propagation Step 4 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Conclusions RTLS can be implemented using ZigBee Mesh Networking Cheap Hardware Components RSSI for Distance Estimation Trilateration for Positioning 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

RTLS can be implemented using

ZigBee Mesh Networking

Cheap Hardware Components

RSSI for Distance Estimation

Trilateration for Positioning

Finish Thank you! Questions? 17/06/2009 DIPLOMA PROJECT - GHEZA Mihai

Thank you!

Questions?

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