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Ischia, 21-23 giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring

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Presentation on theme: "Ischia, 21-23 giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring"— Presentation transcript:

1 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Davide Di Palma University of Florence MIDRA Consortium Department of Electronics and Telecommunications

2 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring The GoodFood consortium: 29 partners from 10 countries Started 01/01/2004, duration 42 months Objective: to demonstrate to the agro-food sector actors the advantages driven to the complete food chain control by the use of Micro and Nano- technology inspired systems WP7 Mission: to introduce Ambient Intelligence (AmI) paradigms in Agriculture using WSN technology to implement a demonstrator for the wine chain to investigate portability and scalability to other food chains MIDRA Consortium acts as WP7 coordinating partner Mission and Targets WP1: Antibiotics WP2: Pesticides WP3: Mycotoxines WP4: Pathogens WP5: Quality WP6: Logistics Safety Quality WP7: Ambient Intelligence WP8: Training & Dissemination 10 countries FP6-IST GoodFood

3 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring System architecture System Specifications

4 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring WSN Node Specifications System Specifications Communication Board + Sensor BoardPower Board The stackable assembled node allows connecting up to 16 Sensor Boards. Each sensor board can be programmed and configured independently to support a wide range of sensor families Hardware and software are designed to support hot Plug and Play features.

5 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring GPRS gateway Stand-alone communication platform, providing transparent bi-directional wireless TCP/IP connectivity for remote monitoring. Operating in conjunction with Remote Data Acquisition (RDA) equipments: WSN, connected with a Master node directly connected to sensors and transducers. Powered by solar panels. Improved robustness. Reconnection with dynamic IP address assignment. System Specifications

6 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring System Deployment System deployment & testing TWO Pilot Sites Deployed TWO Different Environmental conditions TWO Different WSN Configurations Recovery strategies implemented at node level (DTR) and at Gateway level (DSR and FSR) Montepaldi Farm UoF Greenhouse 16 nodes and 49 sensors Operating since October, 25th nodes and 24 sensors Deployed October, 4 th 2005

7 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring 4 Plants Aggregate Report: Sensors Correlation In the Greenhouse Plant irrigation (from soil moisture sensors) Plant growth (from diametric growth sensors) Plant respiration (from leaf temperature sensors) Environment conditions: vapour pressure deficit (from air temp/hunidity sensors)

8 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring 2006 IEEE MTT-S International Microwave Symposium San Francisco, California June 11 – June 16, 2006 Full-day WORKSHOP Title: Technology and applications of Wireless Sensor Network Date & Time: Friday, June 16, 8:00AM–5:00 PM Location: Moscone Center, S Francisco, Usa Organizers: D. Adamson, National Physical Laboratory, UK G. Manes, University of Florence, Italy V. K. Nair, Intel Corp., USA Kate Remley, US Dept. of Commerce, USA E. Fathy, University of Tennessee, USA Topics & Speakers: Wireless Mesh Networks: an introduction, D. Sexton, GE Sensor Networks for Wireless, G. Maracas, Motorola Smart Antennas Applications in Wireless Sensor Networks, S. El-Ghazaly, University of Tennessee The DOE Industrial Wireless Program, W. Manges, Oak Ridge National Laboratory Application of Wireless sensor networks, G. Manes, University of Florence and L Nachman, Intel Corp. Resolving the high bandwidth, low power dilemma, D. Culler, University of California Do We Trust the Outputs from Sensor Networks?, D. Adamson, National Physical Laboratory Utilizing a wireless sensor network to gauge an abstract quantity, Paul Bowman, BT Conclusions

9 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring TO BE CONTINUED…. POSTER B14

10 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Pilot Site WSN Case Study: Autumn heavy rain Soil Moisture different depths in different weather conditions 10 cm 30 cm Results

11 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Conclusions End-to-end solution for WSN vineyard monitoring A state of the art wireless infrastructure has been fully designed, implemented and deployed. Innovative solutions have been implemented, such as flexible and generic sensor interfaces, wireless gateways and hardware boards, with improved robustness for unattended operation The custom low power STAR MAC protocol is running on all the WSN nodes, confirming the expected results in terms of energy efficiency and network stability End-to-end system architecture, with multi-format platforms and user interfaces Conclusions

12 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Conclusions Further Advancements Extension of the developed infrastructure to the whole wine chain (cellar, logistic & transport phases); Deployments of new pilot sites, also for other food chains; Integration of additional sensors, including RFID tag reader, in the AmI infrastructure; Optimized hardware releases, at node level (improved RF performance) and at gateway level (power consumption and miniaturization); Electronically steered antennas for enhancing battery life; Conclusions

13 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Publications 4.1. F. Chiti, M. Ciabatti, G. Collodi, D. Di Palma, A. Manes: Design and Application of Enhanced Communication Protocols for Wireless Sensor Networks operating in Environmental Monitoring, accepted at ICC 06 conference, notified on 31st Dec F. Chiti, M. Ciabatti, G. Collodi, D. Di Palma, A. Manes: Enhanced Design Solutions for Wireless Sensor Networks applied to Distributed Environmental Monitoring, accepted at EWSN 06 conference notified on 6th Jan F. Chiti, M. Ciabatti, G. Collodi, D. Di Palma, A. Manes: An Embedded GPRS Gateway for Environmental Monitoring Wireless Sensor Networks, accepted at EWSN 06 conference notified on 6th Jan Publications and Conferences Dissemination Conferences 15/16 November 2005 Florence Workshop: Ambient Intelligence for food quality and safety. Invited Presentation 13/15 February 2006 Zurich, EWSN 2006: Invited Presentation. Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring 11/16 June 2006 San Francisco, IEEE MTT-S International Microwave Symposium

14 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring 1. Two pilot sites have been fully deployed for the exploitation of Ambient Intelligence (AmI) paradigms: > Vineyard of Montepaldi Farm, Chianti zone, from October > Experimental greenhouse, Univ. of Florence, from July Mission and Targets WorkPackage 7 results 2.A state of the art wireless infrastructure has been designed and implemented, adopting innovative hardware components, such as: > Battery operated WSN nodes, running a custom, low power oriented multi-hop protocol (STAR MAC); > Innovative generic sensor interface, supporting hot plug-and-play features developed on miniaturized hardware boards; > Custom self-powered WSN-to-GPRS gateway; 3.All the data gathering chain have been fully implemented, from sensors up to final user interface.

15 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring End Username: ewsn2006 Password: goodfood From 15/02/06 up to 10/03/06

16 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Vineyard Pilot Site WSN Case Study: Autumn heavy rain Soil Moisture Sensors Air Humidity SensorsAir Temperature Sensors Rain Fall Results

17 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Greenhouse Pilot Site WSN Case Study: Salt & Water stress Soil Moisture Sensors Trunk Diametric Growth Sensors Living Plant Activity Dying Plant Increasing Water Stress Increasing Salt Concentration Results

18 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Ongoing activities Protocol enhancements: STAR+ MAC Topological messages remote control ad firmware up-grading capability

19 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Further developments Protocol enhancements: Physical: Adaptive threshold for the received power Routing: Fully dynamic multihop synchronous (downstream) sensing asynchronous or event-based sensing (upstream + downstream) Re-configurable communication paradigm for highly time-varying scenarios (mobile agents) Advanced traffics management: QoS oriented Differentiated services 6. Conclusions

20 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring STAR MAC Synchronous Transmission Asynchronous Reception Background: WISE MAC: nodes maintain the schedule offsets of their neighbors S-MAC: nodes regularly broadcast SYNC packets Drawbacks (related to our application): WISE MAC: offset information is transmitted within ACK messages, then its update depends on traffic load S-MAC: clustered nodes are strictly synchronized and must have the same duty cycle and frame time Proposed approach: STAR protocol does not require strict node synchronization: each node can adjust its duty cycle and frame period independently. Nodes periodically send their offsets to neighbors through a MAC layer signalling. As a result, the network topology is flat. 1. Communications protocols

21 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring STAR MAC Synchronous Transmission Asynchronous Reception Weak nodes synchronization (2 way handshake) Steady state behaviour (except set up & recovery procedures) 1. Communications protocols

22 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring STAR MAC Synchronous Transmission Asynchronous Reception Duty cycle Normalized Cost MAC frame period : T f = T l + T S Typical parameters: T f =60 s; d=3%; c Rx =12mA; C Tx =30mAh; c sleep =0.01mA 1. Communications protocols The major contribution to the overall cost is represented by Receiving Status

23 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Multihop routing Routing table management (building and updating): MAC layer signaling (neighbor discovering, SYNC) ( T f ) Network layer signaling (network discovering, PING) ( T p >>T f ) Cross layer protocol design inspired Communication protocol robustness (best hop selection) Sensing messages generation ( T acq ) & forwarding 1. Communications protocols TargetNext HopHop Counter PhaseLink Quality Battery Level Congestion Level Sink XNXNX X X BXBX CXCX YNYNY Y Y BYBY CYCY ZNZNZ Z Z BZBZ CZCZ

24 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring User Interface Multiple gateways monitoring Low level messages logging 1D and 2D graphs: Joint plotting Interactive map Time window adjusting 4. User interface

25 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring QoS at WSN level System deployment & testing

26 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring QoS at WSN level 1 st Deployment Success Rate % Node Node System deployment & testing

27 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring QoS at WSN level 1 st Deployment Success Rate % Node Node Node System deployment & testing

28 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Gateway Disconnections 2 Disconnections in 168 h monitoring Each lasts 20 minutes P out = 0.4 % QoS at WSN level System deployment & testing

29 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring QoS at System level Dynamic Recovering Strategies Outdoor operation in adverse environment Dead-lock at node level (collisions, EMI, in-band jamming) Temporary lack of connectivity at Gateway (dynamic radio resource management, temporary outage of radiomobile channel, radiobase maintenance) Mandatory requirement : unattended operation Node level Dynamic Time-out Recovery (DTR) Gateway level Dynamic session re-negotiation (DSR) Forced session re-negotiation (FSR) System deployment & testing

30 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring The deployment at Montepaldi Farm 13 nodes and 24 sensors operating since October, 25 th 2005 Features: Full STAR MAC multi-hop operation Stand alone unattended system Extended covered area, up to 4 sensors per node Implemented sensors: Soil moisture and temperature Air humidity and temperature Differential leaf temperature Diametric stem growth System deployment & testing

31 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring The Greenhouse Motivations Global system validation completed through a set of advanced case-studies in a controlled environment Features Single hop configuration in a very restricted area Highly dense communication & multipath environment Up to 6 sensor per node 6 nodes and 24 sensors Deployed October, 4 th 2005 (final release) System deployment & testing

32 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Vineyard Pilot Site WSN Case Study: Nodes cases airtight closure Results

33 Ischia, giugno 2006 Riunione Annuale GE 2006 Enhanced Design Solutions for WSNs applied to Distributed Environmental Monitoring Scientific collaborations and partnership related to GoodFood activities: Intel Research Labs, S. Clara CA, MoU for joint activity for application of WSN technology in food chain WINE-OCHRA RISK (QLK-1-CT ) Assessment of risk of ochratoxin A (ATA) in grape and wine in Europe and protection of the consumers health MoU with Cooperating Embedded Systems for Exploration and Control featuring WSNs (sent to PM for discussion in GMB) Embedded WiSeNets FP6-IST CA Collaboration agreement with Prof. Veronique Bellon at CEMAGREF Montpellier (France) for the implementation of a pilot site at CEMAGREF vineyard based on GoodFood WSN technology Creating an European Network of Research Centres working in application of ICT for precision viticulture Collaborations Mission and Targets


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