Atmospheric abnormality detection alarm system
US4581604A · kind A · utility
15Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1983 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Oct 27, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B26/002
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An atmospheric abnormality detection system includes a command discriminator and a display/alarm circuit in each sensor terminal. When the command discriminator receives a coincidence signal from an address comparator, the command discriminator causes an A/D converter to convert an analog sensor output to a digital signal as response data. When an abnormal state display command is transmitted from a main unit to the command discriminator, the command discriminator causes the display/alarm circuit to display information indicating the abnormal state and/or generate an audible alarm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.