Alarm pane assembly

US10557877B2 · kind B2 · utility

Assignee

• SAINT-GOBAIN GLASS FRANCE · FR

Inventors

• Christian EFFERTZ · Aachen, DE
• Guillaume Francois · Aachen, DE
• Stefan Droste · Herzogenrath, DE
• Klaus Schmalbuch · Aachen, DE
• Ariane Weissler · Aachen, DE
• Hans-Werner Kuster · Aachen, DE

Key dates

• Filing date: Jul 26, 2017
• Grant date: Feb 11, 2020
• Expiry date: Jul 26, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G08B21/182
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An alarm pane assembly is presented. The alarm pane assembly includes a pane made of tempered glass, a transparent, electrically conductive coating that is arranged on a surface of the pane, a sensor unit, and an antenna. According to one aspect, the sensor unit includes a transmitting unit and an evaluation unit. During operation, the transmitting unit forwards a high-frequency voltage signal with a frequency f in a range of 0.1 GHz to 6 GHz to the antenna, the antenna emits electromagnetic radiation of the frequency f, and the evaluation unit measures the impedance matching of the transmitting unit to the antenna. According to another aspect, the antenna is electromagnetically coupled to the conductive coating, and the sensor unit outputs an alarm signal when the measured impedance matching deviates from a reference value.