Apparatus and method for monitoring a building opening
OwnerStefan Wieserinventor
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Abstract
The invention specifies an apparatus and a method for monitoring a building opening which is closed with a closure element (6, 6a . . . 6n) which is not fully transparent. The apparatus comprises a pattern (M), which is arranged on one side of the closure element (6, 6a . . . 6n) or is projected onto this side, and a detection unit (7a . . . 7e) which is aligned with this pattern (M). A comparison unit compares the actual pattern (M) detected by the detection unit (7a . . . 7e) with a desired pattern and triggers an alarm if the difference between the actual pattern (M) and the desired pattern exceeds a predefinable threshold.
Claims15
Device for monitoring a building's opening, which is sealed with a non-completely transparent closure element, comprising:
- a detection unit directed to a pattern and
- a comparison unit for comparing the actual pattern detected by the detection unit with a reference pattern and for triggering an alarm if the deviation between the actual pattern and the reference pattern exceeds a predetermined threshold,
- characterized in that
- said pattern is essentially arranged on/in said closure element or projected onto/into it.
Method for monitoring a building's opening, which is closed by a non-completely transparent closure element, comprising the steps of:
- capturing a pattern essentially arranged on/in the closure element or projected onto/into it,
- comparing the detected actual pattern with a reference pattern and trigger an alarm if the deviation between the actual pattern and the reference pattern exceeds a predetermined threshold.
Dependencies are inferred from the claim text.