Francois Rivet


Improved IoT capabilities for Agriculture applications (technique 2)

This talk will propose 2 new techniques to improve IoT for agriculture, first about its communication range on wide and hardly covered areas and then about its power supply that is critical on remote fields.

About the coverage, an object must be within communication range of a gateway. In 2020, it is estimated that 25% of the earth’s surface is connectable to the Internet. In the 75% of the land surface not connected to the Internet are many farms. One solution to connect the entire surface of the earth is to use a constellation of Low Earth Orbit (LEO) satellites. We will present the issues related to the implementation of LEO satellite IoT communications and to provide a comparative analysis of the techniques that can be used.

About the power supply, an object regularly sends raw data. The radiofrequency transceiver is the building block that consumes the most. We propose to dramatically reduce the power consumption by sending data less often by processing it into the object. For example, instead of sending very little information every minute or hour, we send a little bit more every hour or day. We determine the right trade-off between precision and volume of data with an algorithm applied to temperature data. The power consumption and the accuracy of temperature data conclude on the efficiency of our technique for environmental data that can be applied to others in agriculture and thus, reduce the over whole power consumption and extend every object’s operational lifetime, especially in isolated areas.

Dr. Francois RIVET is Associate Professor at the EE department of Bordeaux Institute of Technology and IMS laboratory, in Bordeaux, France. His research activities are the design of integrated circuits and systems for wireless communications. Since 2014, he leads the research team «Circuits and Systems». He has contributed to the design of disruptive communication circuits developing a Design by Mathematics methodology. He published 80 technical papers and holds 14 patents. He participates in several technical and / or steering committees (IEEE  RFIC, IEEE ESSCIRC-ESSDERC, IEEE ICECS, IEEE SBCCI, IEEE ASICON, …).