Data collection system
US4162484A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1977 |
| Grant date | Jul 24, 1979 |
| Priority date | — |
| Expiry date | May 18, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2209/60
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A data collection system wherein a metering center or central metering station sequentially selects a large number of remote terminal equipment block selectors and through the selected selector sequentially selects a plurality of terminal equipments or meters each for each comsumer belonging to the selected selector whereby the data or readings of the meters may be sequentially read into the metering center. The combinations of two coded signals are used for the selection of the terminal equipment block selectors while one code signal is singly used for selecting one of the terminal equipments. According one aspect of the present invention the terminal equipments having special instruction codes recorded therein are inserted into the groups and blocks to facilitate the switching of readings from one group or block to another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.