Method and device for managing electric energy consumption and/or production
First Claim
1. A method of managing electric energy consumption and/or production dynamics in an electricity metering device, comprising the steps of:
- sampling an electric energy flow through a given node of a network of an electric company by an electricity metering device belonging to said network;
calculating at said node by a digital metering circuit of said electricity metering device a time-divided energy variation Δ
Ei=(Ei−
Ei−
1)/Δ
t at regular intervals, where Ei is an integral sum value of electric energy consolidated over a first number of cycles and Ei−
1 is an integral sum value of electric energy consolidated over a second number of cycles that occur after the first number of cycles and Δ
t represents a time interval between the respective times of the first number of cycles and the second number of cycles at which said two integral sum values are obtained;
adding said variation (Δ
Ei) to analogous variations calculated by said electricity metering device at the same node at previous time instants, to obtain a cumulative sum of such variations;
determining by said electricity metering device whether said variation and/or said cumulative sum detected at said node exceed a predetermined threshold value (δ
DE), wherein said metering device is configured to meter the electric energy consumed and/or the electric energy produced by a user of the electric company; and
transmitting by a communication unit of said electricity metering device a message over said network if said variation and/or cumulative sum detected at said node exceed said predetermined threshold value (δ
DE).
4 Assignments
0 Petitions
Accused Products
Abstract
A method of managing electric energy consumption and/or production dynamics, includes the steps of: sampling an electric energy flow, adapted to be measured by an electricity metering device (1) within a network (15) of an electrical company; calculating a variation ΔEi=(Ei−Ei−1)/Δt at regular intervals, where Ei and Ei−1 are two integral sum values of electric energy amounts consolidated over a given number of cycles and Δt represents a time interval between the respective times at which the two values are obtained; adding the variation (ΔEi) to analogous variations calculated at previous times, to obtain a cumulative sum of such variations; determining whether the variation and/or the cumulative sum exceed a predetermined threshold value (δDE); transmitting a message over the network (15) from the electricity metering device (1) if the variation and/or cumulative sum exceed the predetermined threshold value (δDE).
28 Citations
21 Claims
-
1. A method of managing electric energy consumption and/or production dynamics in an electricity metering device, comprising the steps of:
-
sampling an electric energy flow through a given node of a network of an electric company by an electricity metering device belonging to said network; calculating at said node by a digital metering circuit of said electricity metering device a time-divided energy variation Δ
Ei=(Ei−
Ei−
1)/Δ
t at regular intervals, where Ei is an integral sum value of electric energy consolidated over a first number of cycles and Ei−
1 is an integral sum value of electric energy consolidated over a second number of cycles that occur after the first number of cycles and Δ
t represents a time interval between the respective times of the first number of cycles and the second number of cycles at which said two integral sum values are obtained;adding said variation (Δ
Ei) to analogous variations calculated by said electricity metering device at the same node at previous time instants, to obtain a cumulative sum of such variations;determining by said electricity metering device whether said variation and/or said cumulative sum detected at said node exceed a predetermined threshold value (δ
DE), wherein said metering device is configured to meter the electric energy consumed and/or the electric energy produced by a user of the electric company; andtransmitting by a communication unit of said electricity metering device a message over said network if said variation and/or cumulative sum detected at said node exceed said predetermined threshold value (δ
DE). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 15, 16, 17, 18, 19)
-
-
12. An electricity metering device comprising:
-
an analog module for detecting electric voltage and current at a given node of a network of an electric company; a communication unit for transmitting messages, and a digital metering circuit, which is configured to provide instantaneous electric voltage and current values at said node and to calculate a time-divided energy variation Δ
Ei=(Ei−
Ei−
1)/Δ
t occurring at said node at regular intervals, where Ei is an integral sum value of electric energy consolidated over a first number of cycles and Ei−
1 is an integral sum value of electric energy consolidated over a second number of cycles that occur after the first number of cycles and Δ
t represents a time interval between the respective time instants of the first number of cycles and the second number of cycles at which said two integral sum values are obtained, and to add said variation (Δ
Ei) to analogous variations calculated at the same node at previous time instants, to obtain a cumulative sum of such variations,wherein said communication unit transmits a message over a network if said variation and/or said cumulative sum detected at said node exceed a predetermined threshold value (δ
DE),wherein said metering device is configured to meter electric energy consumed and/or the electric energy produced by a user of the electric company. - View Dependent Claims (13, 14)
-
-
20. A method of managing electric energy consumption and/or production dynamics in an electricity metering device, comprising the steps of:
-
sampling an electric energy flow through a given node of a network of an electric company by an electricity metering device belonging to said network; calculating at said node by a digital metering circuit of said electricity metering device a time-divided energy variation Δ
Ei=(Ei−
Ei−
1)/Δ
t at regular intervals, where Ei is an integral sum value of electric energy consolidated over a first number of cycles and Ei−
1 is an integral sum value of electric energy consolidated over a second number of cycles that occur after the first number of cycles and Δ
t represents a time interval between the respective times of the first number of cycles and the second number of cycles at which said two integral sum values are obtained;adding said variation (Δ
Ei) to analogous variations calculated by said electricity metering device at the same node at previous time instants, to obtain a cumulative sum of such variations;determining by said electricity metering device whether said variation and/or said cumulative sum detected at said node exceed a predetermined threshold value (δ
DE), wherein said metering device is configured to meter the electric energy consumed and/or the electric energy produced by a user of the electric company; andtransmitting by a communication unit of said electricity metering device a message over said network if said variation and/or cumulative sum detected at said node exceed said predetermined threshold value (δ
DE), wherein said message includes information about the electric energy values of said variation and/or said cumulative sum that triggered the transmission of said message. - View Dependent Claims (21)
-
Specification