Smart cars

Internet-Connected Sensors Increase in Importance

March 3, 2016
Active and passive sensors will be enabling an automated lifestyle as part of the Internet of Things (IoTs).

Sensors are being developed for a growing number of applications based on their capability to be accessed remotely for information via the Internet. The use of temperature, humidity, motion-detecting, and other kinds of sensors is making possible automated homes and buildings and “smart” cars. For effective and efficient connection to the Internet, these Internet of Things (IoT) or Internet of Everything (IoE) devices rely on the use of available wireless bandwidths and miniature antennas capable of receiving relatively high data rates at very low signal levels.

In previewing the requirements of future smart-sensor-driven automated homes, offices, and automobiles, researchers from the Department of Electrical and Computer Systems Engineering at Monash University in Clayton, Australia surveyed the different types of sensors currently being used for IoT and IoE applications. The researchers looked at how different active and passive sensors can be combined to perform a wide range of functions. The report includes details on a number of unconventional electromagnetic (EM) transduction-based sensors—including passive chipless radio-frequency-identification (RFID), crack, and strain sensors—in addition to widely used varieties like pressure, temperature, and gas-detection sensors.

This wide range of chipless sensors can be fabricated on materials that can be formed into planar, lightweight, flexible shapes for ease of installation in factories, office buildings, and residences. The sensors can be readily printed for the low-cost mass production needed for such predicted large volumes for IoT/IoE wireless sensor applications. As the authors note, a great deal of research remains to be done on identifying base materials for fabricating multiple-function RF/wireless sensors for these future applications. See “Smart Sensing,” IEEE Microwave Magazine, November 2015, p. 26.

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About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.

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