Power meter determining an operating state
AssigneeSenva Inc.
InventorsScott Leonard, Dalton Paull, Kent Holce, Andre Perra
Life of this patent
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Abstract
A power meter includes a current sensor sensing a current of a conductor signal transmitted along a conductor and outputting a current signal based on the current, a voltage sensor sensing a voltage of the conductor signal and outputting a voltage signal based on the voltage, and a controller receiving the current signal and the voltage signal and calculating a power factor of the conductor signal based on the current signal and the voltage signal. The controller determines an operating state of a powered device to which the conductor feeds the conductor signal based on the power factor.
Claims19
A power meter, comprising:
- a housing releasably positioned around a wire;
- a current sensor disposed in the housing and sensing a current of a conductor signal transmitted along a conductor of the wire and outputting a current signal based on the current;
- a voltage sensor disposed in the housing and sensing a voltage of the conductor signal and outputting a voltage signal based on the voltage;
- and
- a controller disposed in the housing, the controller receiving the current signal and the voltage signal and calculating a power factor of the conductor signal based on the current signal and the voltage signal, the controller determines an operating state of a powered device to which the conductor feeds the conductor signal based on the power factor, the controller compares the power factor to a threshold to determine the operating state of the powered device, the operating state of the powered device determined by the controller is an on state or an off state, and the threshold is less than 0.2.
A method of determining an operating state of a powered device, comprising:
- providing a power meter having a housing, a current sensor disposed in the housing, a voltage sensor disposed in the housing, and a controller disposed in the housing and connected to the current sensor and the voltage sensor;
- releasably positioning the housing around a wire having a conductor;
- sensing a voltage of a conductor signal transmitted along the conductor to the powered device with the voltage sensor and outputting a voltage signal based on the voltage to the controller;
- sensing a current of the conductor signal with the current sensor and outputting a current signal based on the current to the controller;
- calculating a power factor of the conductor signal with the controller based on the current signal and the voltage signal;
- and
- determining an operating state of the powered device with the controller based on the power factor, the controller compares the power factor to a threshold to determine the operating state of the powered device, the operating state of the powered device determined by the controller is an on state or an off state, and the threshold is less than 0.2.
Dependencies are inferred from the claim text.