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F.L. Lewis, Assoc. Director for Research Moncrief-O’Donnell Endowed Chair Head, Controls, Sensors, MEMS Group. Automation & Robotics Research Institute (ARRI) The University of Texas at Arlington. Wireless Sensor Networks. Graduate students: Jayanta Hajra, Ankit Tiwari.
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F.L. Lewis, Assoc. Director for Research Moncrief-O’Donnell Endowed Chair Head, Controls, Sensors, MEMS Group Automation & Robotics Research Institute (ARRI)The University of Texas at Arlington Wireless Sensor Networks Graduate students: Jayanta Hajra, Ankit Tiwari http://ARRI.uta.edu/acs
Wireless Sensor Networks Vehicle Monitoring Animal Monitoring Medical Monitoring Machine Monitoring Wireless Data Collection Networks Wireless Sensor Wireless Sensor BSC (Base Station Controller, Preprocessing) BST Ship Monitoring Management Center (Database large storage, analysis) Data Acquisition Network Data Distribution Network Roving Human monitor transmitter Online monitoring Printer Server Wireland (Ethernet WLAN, Optical) Wireless (Wi-Fi 802.11 2.4GHz BlueTooth Cellular Network, - CDMA, GSM) PDA Any where, any time to access Cellular Phone Notebook PC
Machinery monitoring & Condition-Based Maintenance (CBM / PHM / RUL) • Remote site biochemical warfare (BCW) toxin monitoring • Personnel monitoring and secure area denial • Optical MEMS human biosensors Mems@uta.edu http://mems.uta.edu Wireless MEMS Sensor Networks New Initiative at ARRI $180K in ARO/ UTA/ Texas funding to set up ARRI MEMS lab $240K in MEMS & Network related Grants from NSF and ARO C&C UserInterface forwireless networks- Contact Frank LewisLewis@uta.edu http://arri.uta.edu/acs
MEMS sensors for biochemical species including anthrax, nerve gases, NOx, organophosphorus • Wireless Sensor Networks for remote site biochemical monitoring Wireless Sensor Nets for BCW Monitoring Structured chemically-activenanosphere thin film- Rajeshwar 3x3 IGEFET sensor micro-array- Kolesar Molecular Recognition- Rudkevich Microcantilever MEMS sensor array- Kolesar DSP and C&C User Interface for wireless networks- Lewis
Wireless CBM Research Areas • COTS Wireless Sensors • Berkeley Crossbow • Microstrain • Wireless Networks • Cellular network • WLAN • Other short range RF networks • Multiple linked networks • Sensor Technology • MEMS ? • Node Technology • DSP • Power • RF link • Remote Access Terminals • Wireless PDA, Wireless Laptop • Cellphone, Internet • Data management • Sensor data storage • DSP • Data Access • Fault & Diagnostic Decision-Making • Alarming
Condition Based Maintenance System Architecture DAQ and Monitoring Analysis Distributed DSP Wireless Sensor Wireless Transceiver Feature extraction Time Domain Frequency Domain Wavelet Preprocessing Monitoring Post Processing (Labview) Target Techniques Fuzzy Logic Neural Net Artificial Intelligent Offline Legacy Data Database Fault Pattern Training Sequence Functional Building Block Self Learning Fault Recognition Health Assessment Prognosis & Diagnosis Sensor Fusion Pattern Matching
Which Hardware? Berkeley Crossbow Sensor Berkeley Crossbow Sensor Crossbow transceiver Crossbow transceiver Crossbow Berkeley Motes
Microstrain G-Sensor Microstrain Transceiver Connect to PC Microstrain V-Link Transceiver Microstrain Wireless Sensors Microstrain G-Sensor Microstrain Transceiver Connect to PC Microstrain V-Link Transceiver http://www.microstrain.com/index.cfm RFID node
CBM Network Developed and Implemented On ARRI Air Conditioning Machinery Room Ankit Tiwari FSM Running at Each Sensor Node UC-TDMA Protocol Running at Base Station
DSP- Data to Information Discrete Event - triggers Advise, Decision Assistance, Alarm LabVIEW GUIs Developed Multiple Time Signal Display Analysis and FFT
IEEE 1451 Standard for Smart Sensor Networks hardware interface N E T W O R K local user interface analog-to- digital conversion application algorithms signal conditioning communication sensor DSP data storage Virtual Sensor Network Independent Network Specific Concept of Smart Sensor contains functions in addition to those needed for accurate presentation of the measurand
Conway & Heffernan, Univ. Limerick http://wwww.ul.ie/~pei IEEE 1451 Standard for Smart Sensor Networks
New Sensor Technologies- MEMS Power Generation New Sensing Methods Optical Pulmonary Pressure Sensor E-Mag Vibration E-Static RFID Membrane deflection FEA
User Interface, Monitoring, & Decision Assistance Wireless Access over the Internet LabVIEW Real-time Signaling & Processing CBM Database and real time Monitoring PDA access Failure Data from anytime and anywhere
Distributed Decision-Making Recursive Filtering c/f Kalman Filter for -- Dempster-Schafer Fuzzy Logic Neural Networks Unify Dempster-Schafer Bayesian Fuzzy Logic Neural Networks Decentralized Decisions c/f/ Decent. Kalman Filter for- Dempster-Schafer Fuzzy Logic Neural Networks Security Issues??
IEEE Singapore SMC, R&A, and Control Chapters Short Course Wireless Sensor Networks for Monitoring Machinery, Human Biofunctions, and Biochemical Agents MEMS Power Generation Date : Thursday, 13 November 2003 Time : 9:00 am. - 5:00 pm Venue: National University of Singapore Wireless Networks DSP and User Interface