Patent ID: 11898892
Assignee: ALOFT SENSOR TECHNOLOGIES LLC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. A system for measuring a fluid level, comprising:
at least one anchor device having a first radio-frequency (RF) transceiver, coupled to at least one first RF antenna, positioned at a fixed location over a surface of a fluid to be measured;
at least one remote float device having a second radio-frequency (RF) transceiver, coupled to at least one second RF antenna, configured to float on the surface of the fluid to be measured;
the at least one first RF antenna or the at least one second RF antenna configured to receive at least one RF signal emitted from the at least one remote float device or the at least one anchor device;
the first RF transceiver configured to extract packets comprising data from the at least one RF signal;
a processor in operable communication with at least one of the first RF transceiver and the second RF transceiver, the processor configured to:
receive at least one packet of the packets from the second RF transceiver, transmitted from the at least one remote float device;
analyze the at least one packet from the second RF transceiver;
measure a time-of-flight of the at least one RF signal between the at least one remote float device and the at least one anchor device using the RF packets;
calculate a location of the at least one remote float device based upon the time-of-flight, wherein the location of the at least one remote float device corresponds to a level of the fluid.