lpwan underground sensor network for optimized...
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GEFÖRDERT DURCH
LPWAN Underground Sensor Network for Optimized Irrigation
Alicia Zoerner1, Susanne Oertel1, Jörg Robert2, Adrian Dietz3
1) 2) 3)
Overview
Research Project “FutureIOT” Sub-project „Soil Monitoring“ Motivation Vision
Sensors Communication Summary and Future Work
2018 May 9th, Tuscany Italy M.Sc. Alicia Zoerner | FutureIOT | EEE IoT V/T Summit for Agriculture
FutureIOT – Smart Networks for City and Agriculture
Bavarian research project FutureIOT (Partners from industry (24) and academia (10), >4 M€) covers the complete IoT value chain: Sensors Communications Localization Data Security IoT Platforms
Smart agriculture as a vertical topic Soil monitoring Cattle tracking
2018 May 9th, Tuscany Italy M.Sc. Alicia Zoerner | FutureIOT | EEE IoT V/T Summit for Agriculture
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Smart city
Smart agriculture
FutureIOT Sub-Project Soil Monitoring
2018 May 9th, Tuscany Italy M.Sc. Alicia Zoerner | FutureIOT | IEEE IoT V/T Summit for Agriculture
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Galloway et al. 2003
Shikomanov 1999, US Census Bureau 2011
Vision: Smart and low-cost autonomous network for continuous local and real-time monitoring of nitrogen, soil moisture and temperature New sensors and network concepts
Increasing world population and water demand need innovative strategies in agriculture
“Agriculture 4.0” This requires new concepts for: Reduced use of mineral N-fertilizers Optimized irrigation
FutureIOT Sub-Project Soil Monitoring
2018 May 9th, Tuscany Italy M.Sc. Alicia Zoerner | FutureIOT | IEEE IoT V/T Summit for Agriculture
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Fraunhofer IIS
Increasing world population and water demand need innovative strategies in agriculture
“Agriculture 4.0” This requires new concepts for: Reduced use of mineral N-fertilizers Optimized irrigation
Vision: Smart and low-cost autonomous network for continuous local and real-time monitoring of nitrogen, soil moisture and temperature New sensors and network concepts
Development of Ion-sensitive Nitrogen Sensors
Screen-printed sensor electrodes Low-cost fabrication and substrates Functionalization of reference electrode (RE)
and ion-sensitive electrode (ISE) Specific ionophores for defined ion species, e.g.
Nonactin for ammonium ions
Potentiometric measurements Current-less Electromotive force (EMF) difference of potentials depending
on ion concentration
2018 May 9th, Tuscany Italy M.Sc. Alicia Zoerner | FutureIOT | IEEE IoT V/T Summit for Agriculture
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Printed sensors, Fraunhofer IISB
ELECSA® Demonstrator for Fitness Applications
ELECtrolyte Sweat Analyzer (ELECSA) Ion sensitive sensor for ammonium ions in
sweat Application of physiologically
reasonable ammonia levels Nernstian behavior at higher concentrations
Small hand held device for sensor evaluation Data transfer via BLE 4.0 Android application for recording and
evaluation of sensor data
𝐸𝐸 = 𝐸𝐸0 + 2.303 𝑅𝑅𝑅𝑅𝐹𝐹𝑧𝑧𝑖𝑖
log(𝑎𝑎𝑖𝑖 )
ELECSA®, Fraunhofer IISB
Mobile N-sensor System
Adaption of ELECSA® for soil monitoring Current status: TRL 4 Development of nitrate sensor
Combination of both sensors for Nmin determination ∑𝑐𝑐 𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎 + 𝑐𝑐(𝑎𝑎𝑎𝑎𝑛𝑛𝑛𝑛𝑎𝑎𝑛𝑛𝑛𝑛) Adaption of sensor architecture for
elutriated soil Network of mobile N-sensor system and IoT-
platform Vision: Optimized use of fertilizers
2018 May 9th, Tuscany Italy M.Sc. Alicia Zoerner | FutureIOT | IEEE IoT V/T Summit for Agriculture
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Data transfer to IoT-platform
ELECSA®, Fraunhofer IISB
Sensor for Optimized Irrigation
Optimized water supply required to insure food production increase harvest save water resources
METER commercial sensor tech data: Volumetric water content: 0.001 m3/m3
Temperature: -40 – 60 °C Electrical conductivity: 0 – 10 dS/m (bulk)
2018 May 9th, Tuscany Italy M.Sc. Alicia Zoerner | FutureIOT | IEEE IoT V/T Summit for Agriculture
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METER Group, TEROS 12
Low Power Wide Area Network (LPWAN) for Reliable Underground Connectivity Sensors will be buried within the soil, requiring
autonomous operation over years using tiny batteries
robust communication schemes for overcoming the high path-loss within the soil
LPWAN are a new communication approach that cover the requirements, as they are optimized for very high maximum coupling loss soil
attenuation very low complexity low cost and low energy
FutureIOT uses LPWAN based on ETSI TS 103 357
2018 May 9th, Tuscany Italy M.Sc. Alicia Zoerner | FutureIOT | IEEE IoT V/T Summit for Agriculture
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Principle of underground communication, the path-loss within the soil LSoil with typical values of 100 dB/m is highly dominating the overall path-loss
Summary and Future Work
The Bavarian research project “FutureIOT” aims at covering the complete IoT chain Its sub-project “Soil Monitoring” is developing new solutions for Agriculture 4.0
The sub-project includes Development of nitrogen sensors for optimized use of fertilizers Application of sensors for optimized irrigation Low Power Wide Area Networks for reliable connectivity of buried sensors IoT platform
The full functionality of the developed components will be analyzed in extensive field trials
2018 May 9th, Tuscany Italy M.Sc. Alicia Zoerner | FutureIOT | IEEE IoT V/T Summit for Agriculture
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GEFÖRDERT DURCH
Thank you for your kind attention!
2018 May 9th, Tuscany Italy M.Sc. Alicia Zoerner | FutureIOT | IEEE IoT V/T Summit for Agriculture
M.Sc. Alicia Zoerner Fraunhofer Institute for Integrated Systems and Device Technology IISB Schottkystr. 10, 91058 Erlangen, Germany [email protected]