DIAGNOSTICS USING SUB-METERING DEVICE
First Claim
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1. A system for performing diagnostics on an energy consuming device comprising:
- a controller adapted to activate a function of the device that draws an electrical load;
a sub-meter device that includes a sensor for collecting data from a dedicated power supplying conductor delivering power directly to the energy consuming device; and
a processor for receiving the data collected by the sensor;
wherein the sensor collects data related to at least one parameter of the electrical load drawn by the function of the device when activated by the controller; and
wherein the collected data is transmitted to the processor, the processor being configured to compare the collected data to at least one predetermined value corresponding to normal operation of the function of the device to determine if the device is operating normally.
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Abstract
A system and method for performing diagnostics on a device, such as an appliance, using a sub-meter device that measures power characteristics related to usage of the appliance within a HEM network and provides such data to a home energy controller or the like. The sub-meter device can include one or more sensors, such as a current transformer, Rogowski coil, shunt resistor, or hall effect sensor, for collecting data relating to at least one of real power consumption, reactive power consumption, line frequency, line voltage, power factor, leading/lagging voltage-current comparison, and apparent power, etc.
219 Citations
20 Claims
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1. A system for performing diagnostics on an energy consuming device comprising:
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a controller adapted to activate a function of the device that draws an electrical load; a sub-meter device that includes a sensor for collecting data from a dedicated power supplying conductor delivering power directly to the energy consuming device; and a processor for receiving the data collected by the sensor; wherein the sensor collects data related to at least one parameter of the electrical load drawn by the function of the device when activated by the controller; and wherein the collected data is transmitted to the processor, the processor being configured to compare the collected data to at least one predetermined value corresponding to normal operation of the function of the device to determine if the device is operating normally. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of performing diagnostics on an energy-consuming device comprising the steps of:
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activating a function of the device that draws an electrical load; measuring the electrical load with a sub-meter device that includes a sensor for collecting data from a power supplying conductor delivering power directly to the energy consuming device; comparing the measured electrical load to a predetermined value corresponding to normal operation of the function of the device to determine if the device is operating normally. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification