Environmental equipment alarm circuit verification system and method
US7525420B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2006 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Apr 25, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/37
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system is provided for verifying operation of a plurality of alarm systems in a plurality of environmental equipment systems that comprises a plurality of first communication nodes and a plurality of second communication nodes. Each second communication node is typically mounted within a yard to about six hundred yards from respective first communication nodes. The first communication nodes send a first verification signal, e.g., a heartbeat signal to verify the alarm systems to the second communication nodes at first predetermined intervals. The plurality of second communication nodes detect when the first verification signal is not received at the first predetermined intervals. The second communication nodes then determine whether to send a malfunction notification to a server base on predetermined criteria. The second communication nodes may send a second heartbeat signal to the server at other predetermined intervals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.