IT1240570B - Anti-intrusion system - Google Patents
Anti-intrusion systemInfo
- Publication number
- IT1240570B IT1240570B IT67888A IT6788890A IT1240570B IT 1240570 B IT1240570 B IT 1240570B IT 67888 A IT67888 A IT 67888A IT 6788890 A IT6788890 A IT 6788890A IT 1240570 B IT1240570 B IT 1240570B
- Authority
- IT
- Italy
- Prior art keywords
- peripheral devices
- fact
- electronic circuit
- standby state
- tampering
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 abstract 4
- 238000012806 monitoring device Methods 0.000 abstract 2
- 238000004458 analytical method Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
Landscapes
- Joints Allowing Movement (AREA)
- Air Bags (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention concerns an anti-intrusion system comprising a central monitoring device that controls one or more peripheral devices composed of at least a container having a window to permit entry of infrared radiation coming from the environment and/or a possible intrusion where the central device evaluates in different ways the signals received from the peripheral device, according to which the system is either in the active functioning or standby state. The principal characteristic consists of the fact that even when the central monitoring device is in the standby state a second electronic circuit contained in each of the peripheral devices generates an alarm signal as a result of an attempt to tamper with at least one of these peripheral devices, owing to the fact that they comprise means of detection of tampering that analyse time variations of output signals from the detector outlet which already supplies the first signal to the first electronic circuit 2, 3, 4, 5, 6, 13 and if these are in a range of different values related to variations of the environment subject to monitoring they generate the alarm signal concerning the tampering attempt. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT67888A IT1240570B (en) | 1990-11-14 | 1990-11-14 | Anti-intrusion system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT67888A IT1240570B (en) | 1990-11-14 | 1990-11-14 | Anti-intrusion system |
Publications (3)
Publication Number | Publication Date |
---|---|
IT9067888A0 IT9067888A0 (en) | 1990-11-14 |
IT9067888A1 IT9067888A1 (en) | 1992-05-14 |
IT1240570B true IT1240570B (en) | 1993-12-17 |
Family
ID=11306109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT67888A IT1240570B (en) | 1990-11-14 | 1990-11-14 | Anti-intrusion system |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1240570B (en) |
-
1990
- 1990-11-14 IT IT67888A patent/IT1240570B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
IT9067888A0 (en) | 1990-11-14 |
IT9067888A1 (en) | 1992-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |