Microprocessor based energy consumption meter
First Claim
1. An electricity meter for measuring, registering and reading a consumer'"'"'s electrical energy consumption via an energy distribution in which the cost per unit energy of consumption differs from time to time, comprising:
- a sensor providing an output signal representative of the electrical energy supplied to a consumer;
a time signal generating means;
a plurality of memory cells;
a central processing unit for calculating the power and/or energy supplied to the consumer from said output signal and storing the calculated values in the memory cells, said central processing unit receiving information as to the real time from the time signal generating means and information as to the tariff related to said real time from the memory unit;
a read out means for the contents of the memory cells;
there being at least two groups of the memory cells;
the number of groups of memory cells corresponding to the number of particular portions of the billing period for which separate power and/or energy values are to be obtained;
each group including first cells separately storing the various tariffs applying to different periods within a day and night belonging to the particular partial period associated with said group, and second cells separately storing the power and/or energy values calculated for said particular partial period;
the groups being successively connected to the central processing unit under the control of the time signal generating means.
0 Assignments
0 Petitions
Accused Products
Abstract
This invention relates to an electricity meter mainly intended for measuring, registration and reading of one or more consumers'"'"' electricity power consumption and/or energy consumption. To the electricity meter a display (12) is connected which is adapted to indicate momentary power consumption, present electricity tariff and accumulated energy consumption expressed in monentary units. The electricity meter is an electronic construction and includes a central processing unit (1) with a microprocessor, one sensor(2) intended for detecting of a consumer'"'"'s power consumption and a number of memory cells (1a-52d) adapted in a predetermined manner to consecutively receive and store information, calculated and transferred by the central processing unit (1). The electricity meter is also adapted to be connected to a read unit (5) by which stored information and electricity tariffs can be transferred to a central computer, located at, for example, an electrical power producer.
-
Citations
16 Claims
-
1. An electricity meter for measuring, registering and reading a consumer'"'"'s electrical energy consumption via an energy distribution in which the cost per unit energy of consumption differs from time to time, comprising:
-
a sensor providing an output signal representative of the electrical energy supplied to a consumer; a time signal generating means; a plurality of memory cells; a central processing unit for calculating the power and/or energy supplied to the consumer from said output signal and storing the calculated values in the memory cells, said central processing unit receiving information as to the real time from the time signal generating means and information as to the tariff related to said real time from the memory unit; a read out means for the contents of the memory cells; there being at least two groups of the memory cells; the number of groups of memory cells corresponding to the number of particular portions of the billing period for which separate power and/or energy values are to be obtained; each group including first cells separately storing the various tariffs applying to different periods within a day and night belonging to the particular partial period associated with said group, and second cells separately storing the power and/or energy values calculated for said particular partial period; the groups being successively connected to the central processing unit under the control of the time signal generating means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
Specification