Patent ID: 11955814
Assignee: WILIOT, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A wireless Internet of things (IoT) tag, comprising:
at least one antenna configured to harvest an ambient energy;
an energy harvester coupled to the at least one antenna;
an energy storage coupled to the energy harvester and configured to store harvested energy;
a power management unit (PMU), wherein the PMU is configured to at least provide an indication on an energy level at the energy storage; and
a system of chip (SoC), wherein the SoC is powered by the harvested energy as stored in the energy storage; and
an energy detector configured to the energy storage, wherein the energy detector is configured to measure an energy-charging rate of the energy harvester, wherein the energy detector comprises a time counter configured to measure a time elapsed from a discharge level to a reference level, wherein the reference level is a predetermined voltage level and measured by the PMU.