Recalling an application we might have used this.
MIT Media Labs Creates Highly Precise UHF RFID for Robotics
The TurboTrack system employs a standard tag and interrogator, as well as a "helper" antenna device that pulses short signals to pinpoint the locations of even fast-moving tags at the sub-centimeter level. By Claire Swedberg in RFID Journal
Feb 28, 2019—The Massachusetts Institute of Technology (MIT)'s Media Lab has completed its testing of a radio frequency identification system known as TurboTrack. The lab's researchers say the solution could enable a new level of flexibility and autonomy for robots in manufacturing processes, as well as in applications such as search-and-rescue.
The TurboTrack system is designed to pinpoint a passive UHF RFID tag's location at the sub-centimeter level, even if it is moving at fairly high-speed. Such a system could make it possible for a robot to understand where a tagged item was located and to respond accordingly—even one flying overhead, as in the case of a swarm of drones. In the long run, the technology is intended to offer a more effective option for managing robotics than computer vision. The group will present a paper on the technology today at the USENIX Symposium on Networked Systems Design and Implementation. .... "
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