System for measuring the power level of an ambient energy source
First Claim
1. A measurement unit comprising:
- an electric ambient energy recovery generator;
an element of capacitive storage of the electric energy generated by the generator;
an electric battery;
a first branch coupling an output node of the generator to a first electrode of the capacitive storage element;
a second branch coupling a first terminal of the battery to the first electrode of the capacitive storage element; and
an active circuit capable of transmitting a radio event indicator signal each time the voltage across the capacitive storage element exceeds a first threshold,wherein, in operation, the capacitive storage element simultaneously receives, on its first electrode, a first charge current originating from the generator via the first branch, and a second charge current originating from the battery via the second branch.
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Abstract
The invention concerns a measurement unit including: an electric ambient energy recovery generator; an element of capacitive storage of the electric energy generated by the generator; an electric battery; a first branch coupling an output node of the generator to a first electrode of the capacitive storage element; a second branch coupling a first terminal of the battery to the first electrode of the capacitive storage element; and an active circuit capable of transmitting a radio event indicator signal each time the voltage across the capacitive storage element exceeds a first threshold, wherein, in operation, the capacitive storage element simultaneously receives a first charge current originating from the generator via the first branch and a second charge current originating from the battery via the second branch.
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Citations
15 Claims
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1. A measurement unit comprising:
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an electric ambient energy recovery generator; an element of capacitive storage of the electric energy generated by the generator; an electric battery; a first branch coupling an output node of the generator to a first electrode of the capacitive storage element; a second branch coupling a first terminal of the battery to the first electrode of the capacitive storage element; and an active circuit capable of transmitting a radio event indicator signal each time the voltage across the capacitive storage element exceeds a first threshold, wherein, in operation, the capacitive storage element simultaneously receives, on its first electrode, a first charge current originating from the generator via the first branch, and a second charge current originating from the battery via the second branch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification