RFID-based sensors as a data source for the IoT: Page 3 of 3

May 11, 2016 //By Mikel Choperena
Latest technology advances bring wireless and battery-free sensors based on radio-frequency identification (RFID) technology to act as a data source for the Internet of Things (IoT).

RFID is a helping hand, the key lies on processing

Once again, battery-free RFID sensors and actuators are a great fit for such use cases. You can use them in a myriad of applications such as rotating parts monitoring, hardly accessible area monitoring – think about soil moisture monitoring in large agricultural farms or structural health monitoring in buildings, tunnels or bridges – or high voltage areas – such as switchgear bus bar temperature monitoring.


RFID system for data center infrastructure management (DCIM).

However, it is important to note that the key is not data but information. More data only means more processing power required which will become an issue sooner or later. It would be wise from our side to understand which data is really valuable and which is not before throwing it into the IoT/Big Data pool.

Having a purpose for each data source we implement – or selecting which data to actually process and which data to discard – will be the challenge of the near future. Discussions on which data to process locally or not are also taking place – for example: temperature sensors in cold chain applications may not transfer all 10 days’ temperature measurements but just critical events such as time elapsed above a temperature threshold. With 50 billion connected devices by 2020 as a market estimate, processing needs to be well thought in advance.

 

About the author:

Mikel Choperena is Product Development Manager at Farsens.

www.farsens.com

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