Revenue metering system for power companies

• US 4,218,737 A
• Filed: 08/30/1977
• Issued: 08/19/1980
• Est. Priority Date: 08/30/1977
• Status: Expired due to Term

• Current Assignee: United States Of America As Represented By The Secretary Of The Army (Government of the United States of America)
• Original Assignee: The United States Of America As Represented By The Secretary Of The Army
• Inventors: Buscher, David J., Ressler, Marc A., Ellingwood, Robert G.
• Primary Examiner(s): Thomas, James D.
• Application Number:
  US05/829,037
• Time in Patent Office: 1,085 Days
• Field of Search: 364/200 MS File, 364/900 MS File, 364/483, 364/492, 364/493, 364/464, 340/150, 340/15, 324/103 R, 324/116
• US Class Current: 702/62
• CPC Class Codes: G01R 21/133 by using digital technique
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: H02J 13/00018 using phone lines
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 40/124 using wired telecommunication networks or data transmission busses

Abstract

An energy meter at an electrical substation contains a detector which chas state each time a quantity of energy is consumed. This data is accumulated in a microprocessor system. Real time energy consumption data is fed back to a customer monitoring station and may be telemetered to a power company central billing station. Customer and power company have their demand periods synchronized by the microprocessor system.

Claims

1. A microprocessor system for enabling remote billing by a power supplier of customer power consumption comprising:

peripheral interface means for receiving power consumption data as a function of a preselected scale factor and transmitting it along a data bus;

memory means connected to the data bus for storing the power consumption data;

monitoring means connected to the output of the peripheral interface means for providing power consumption data to a customer;

display means connected to the output of the peripheral interface means for selectively displaying stored data to a system operator;

means connected to the input of the peripherals interface means for allowing manual accessing of the data by the operator; and

asynchronous communications interface means connected to the data bus for transmitting data in the memory means, to data lines thereby enabling a central station at opposite ends of the data links to compute billing; and

a central processing unit connected to the data bus for controlling the operation of the peripheral interface and asynchronous communications interface means as well as the memory means;

first clock means connected to the central processing unit for clocking the unit through its operation, and,

second clock means connected to the central processing unit for synchronizing a preselected demand period for both customer and power supplier.

2. The subject matter set forth in claim 1 together with a tape storage system connected to the peripherals interface means for storing data transmitted over the data links thereby serving as a backup for the transmitted data.

3. The subject matter set forth in claim 1 together with analog/digital converting means connected at the input thereof to respective kw and kvar analog data measurement means and at the output thereof to the peripheral interface means for selectively permitting digitization and storage of this volatile data in the memory means.

4. The subject matter set forth in claim 3 together with a programmable read-only memory connected to the data bus for storing an operational program for the system, executed by the central processing unit.

5. The subject matter of claim 4 wherein the manual accessing means is a keypad.