STMicroelectronics
0920 Mw St Micro Flight Sense Prox Sensor 5f5a9355b6e65

Proximity Sensors Enable Smart Social-Distancing Applications

Sept. 10, 2020
STMicroelectronics’ FlightSense technology sees a demo in Aura Aware’s devices for retail counters and check-in desks.

Technology comes to the pandemic rescue again: ST Microelectronics’ high-accuracy FlightSense proximity and ranging sensors are helping prevent disease transmission in products being developed in response to the global pandemic situation.

One example is Amsterdam-based startup Aura Aware, which is using ST’s FlightSense Time-of-Flight (ToF) technology in a smart distance-awareness portable device suitable for use at retail counters and check-in desks. The easy-to-setup device displays a green OK signal that changes to red if a person crosses a safe minimum-distance threshold.

Aura Aware devices integrate ST’s VL53L1X compact ToF sensor, which has an operating range of up to four meters and very low power consumption. Signal processing built into the sensor simplifies design and provides sophisticated features such as crosstalk compensation that maintains measurement accuracy even if the sensor window becomes obscured by foreign material.

Time-of-Flight sensors transmit photons and then calculate distance to the target based on the time it takes for the reflected photons to be received back by the sensor. Moreover, ranging accuracy is unaffected by surface characteristics of the target, such as clothing color or skin reflectivity, making FlightSense ideal for helping people to maintain social distancing.

The sensors can also help users avoid contact with surfaces, including self-service touchscreens, smart faucets, and push-button door openers, located in high-traffic areas. The speed and precision of ToF sensing enable FlightSense sensors to manage basic on/off control as well as to detect and interpret gestures like tapping and swiping for smart touchless human-machine interaction.

Another advantage of ST’s ToF sensors is their linear response when measuring short distances, which allows them to be used inside dispensing machines to detect the level of hand-sanitizing liquid or the number of personal protective items such as face masks.

ST’s FlightSense ToF sensors are in production now.

STMicroelectronics, www.st.com

About the Author

David Maliniak | Executive Editor, Microwaves & RF

I am Executive Editor of Microwaves & RF, an all-digital publication that broadly covers all aspects of wireless communications. More particularly, we're keeping a close eye on technologies in the consumer-oriented 5G, 6G, IoT, M2M, and V2X markets, in which much of the wireless market's growth will occur in this decade and beyond. I work with a great team of editors to provide engineers, developers, and technical managers with interesting and useful articles and videos on a regular basis. Check out our free newsletters to see the latest content.

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In his long career in the B2B electronics-industry media, David Maliniak has held editorial roles as both generalist and specialist. As Components Editor and, later, as Editor in Chief of EE Product News, David gained breadth of experience in covering the industry at large. In serving as EDA/Test and Measurement Technology Editor at Electronic Design, he developed deep insight into those complex areas of technology. Most recently, David worked in technical marketing communications at Teledyne LeCroy, leaving to rejoin the EOEM B2B publishing world in January 2020. David earned a B.A. in journalism at New York University.

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