Quantised monitoring of power-consumption
AssigneeenModus Limited
InventorsPhilip Young, Andrew James Heaton
Life of this patent
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Abstract
A power-consumption monitoring device, for taking measurements of the power consumed by an appliance. The device is connectable to a mains electrical circuit and operable to transmit the measurements to a master device through the circuit. The device is adapted: to measure the energy consumed by the appliance in each of a series of time intervals, and maintain a first cumulative sum of the resulting energy measurements; to periodically transmit, to the master device, a first quantised value representing the cumulative sum; and to subtract the transmitted quantised value from the cumulative sum.
Claims12
A power-consumption monitoring device, for taking measurements of the power consumed by an appliance,
- the device being connectable to a mains electrical circuit and operable to transmit the measurements to a master device through the circuit,
- wherein the device is adapted:
- to measure the energy consumed by the appliance in each of a series of time intervals, and maintain a first cumulative sum of the resulting energy measurements;
- to periodically transmit, to the master device, a first quantised value representing the cumulative sum;
- and
- to subtract the transmitted quantised value from the cumulative sum.
A method of monitoring power-consumption, for taking measurements of power consumed and transmitting them to a master device, the method comprising:
- measuring energy consumption in each of a series of time intervals, and maintaining a first cumulative sum of the resulting energy measurements;
- periodically transmitting, to the master device, a first quantised value representing the cumulative sum;
- and
- subtracting the transmitted quantised value from the cumulative sum.
Dependencies are inferred from the claim text.