Remote alarm monitoring and circuit control system
US4032907A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1975 |
| Grant date | Jun 28, 1977 |
| Priority date | — |
| Expiry date | Aug 8, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B25/08
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A remote alarm monitoring and control circuit control system for centralized monitoring of areas remote from the monitoring location. The system comprises a centrally located monitoring board connected via conventional phone lines to a plurality of remotely located control boxes each in turn being connected to a number of individual sensor inputs. Each of the control boxes is capable of sending two different and distinguishable signals via one telephone line connected to the monitoring board. Further, the system at the remotely located control boxes can be reset from the monitoring board without the need for gaining entry to the location where the remotely located control box is placed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.