Consumption meter for accumulating digital power consumption signals via telephone lines without disturbing the consumer
US4902965A · kind A · utility
Inventors
Key dates
| Filing date | Jun 15, 1987 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Jun 15, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R21/1331
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A microprocessor controlled utility consumption meter is provided. The meter is to be associated with sensors for detecting the consumption of a utility and includes a real time clock operable to generate time signals to divide a predetermined time period into a plurality of intervals, the intervals defining critical and non-critical utility consumption times. A processor is also provided which communicates with the sensors and is responsive to the timing signals for storing the utility conmsumption for each of the intervals in the period. An accumulator accumulates the utility consumption for each of the intervals over a plurality of periods. The meter also includes an interface for allowing the accumulated utility consumption stored in the meter to the transmitted to a central computer for processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.