DK577884A - NOTIFICATION TO ENABLE A SOUND SOURCE OR OTHER ALARM - Google Patents
NOTIFICATION TO ENABLE A SOUND SOURCE OR OTHER ALARM Download PDFInfo
- Publication number
- DK577884A DK577884A DK577884A DK577884A DK577884A DK 577884 A DK577884 A DK 577884A DK 577884 A DK577884 A DK 577884A DK 577884 A DK577884 A DK 577884A DK 577884 A DK577884 A DK 577884A
- Authority
- DK
- Denmark
- Prior art keywords
- alarm
- power supply
- circuit
- notification
- enable
- Prior art date
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Burglar Alarm Systems (AREA)
Abstract
A monitor for non-contact detection of a person or an object 7 has a sensor 20 of, for example, light or ultrasound type, which is connected to a monostable circuit 1, which by its output can drive a relay 8, whose contact can close a circuit 2', 5 for activation of an alarm or clock. In the non-activated condition, the system draws power through the clock by means of lines 9, 10, 17, 18, a diode bridge 13 and a diode 15. When the alarm is activated, the power supply lines 9, 10 are short- circuited, and a capacitor 16 provides the power supply of the circuit 19 in the activation period. This achieves a durable, simple, reliable and cheap arrangement, which can be connected as is to an existing monitor and make use of its power supply. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK577884A DK151737C (en) | 1984-12-05 | 1984-12-05 | NOTIFICATION TO ENABLE A SOUND SOURCE OR OTHER ALARM |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK577884A DK151737C (en) | 1984-12-05 | 1984-12-05 | NOTIFICATION TO ENABLE A SOUND SOURCE OR OTHER ALARM |
DK577884 | 1984-12-05 |
Publications (4)
Publication Number | Publication Date |
---|---|
DK577884D0 DK577884D0 (en) | 1984-12-05 |
DK577884A true DK577884A (en) | 1986-06-06 |
DK151737B DK151737B (en) | 1987-12-28 |
DK151737C DK151737C (en) | 1988-06-13 |
Family
ID=8145182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK577884A DK151737C (en) | 1984-12-05 | 1984-12-05 | NOTIFICATION TO ENABLE A SOUND SOURCE OR OTHER ALARM |
Country Status (1)
Country | Link |
---|---|
DK (1) | DK151737C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI13109Y1 (en) * | 2021-11-11 | 2022-02-04 | Innotrafik Oy | Signalling device |
-
1984
- 1984-12-05 DK DK577884A patent/DK151737C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK151737C (en) | 1988-06-13 |
DK577884D0 (en) | 1984-12-05 |
DK151737B (en) | 1987-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |