Methods and apparatus for detecting faults in a siren-based alert system

US10930122B1 · kind B1 · utility

Assignee

• MOTOROLA SOLUTIONS, INC. · US

Inventors

• Oren Zakaria · Raanana, IL
• Nissim Gean · Netanya, IL
• Jacob Shem Tov · Jerusalem, IL
• Irakliy Papiashvily · Ashkelon, IL
• Alexander Becker · Балка Пшехская, DE
• Lionid Kodner · Lod, IL
• Iftach Sharabi · Nes Ziona, IL
• Ran Pery · Rishon LeZion, IL
• Haim Kahlon · Haifa, IL

Key dates

• Filing date: Sep 11, 2019
• Grant date: Feb 23, 2021
• Expiry date: Sep 11, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G08B29/185
• WIPO field: Control
• WIPO sector: Instruments

Abstract

Methods for detecting faults in a siren-based alert system include receiving, by a siren device from a central siren controller, an activation command. The activation command identifies a neighbor siren device that is to be activated. Audible alerts output by the neighbor siren device include a unique identifying characteristic associated with the neighbor siren device. The method includes determining that the unique identifying characteristic is not detectable by the siren device and, in response, taking corrective action. The corrective action includes the siren device sending a siren fault notification to the central siren controller indicating a failure to detect the unique identifying characteristic and may also include modifying the audible alert output by the siren device to compensate for the faulty siren device. The siren device may send a siren fault notification to the central siren controller if an unexpected audible alert, such as a potential false alarm, is detected.