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(11)

EP 4 771 607 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24765363.7 (22) Date of filing: 29.08.2024

(51) International Patent Classification (IPC):  G08B 29/12(2006.01) H04B 3/46(2015.01) G05B 23/02(2006.01) (52) Cooperative Patent Classification (CPC): G08B 29/123; G05B 23/0256; H04B 3/46; G05B 19/042 (86) International application number: PCT/EP2024/074237 (87) International publication number: WO 2025/046042 (06.03.2025 Gazette 2025/10)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 31.08.2023 GB 202313306 (71) Applicant: Tyco Fire & Security GmbH 8212 Neuhausen am Rheinfall (CH)	(72) Inventors: MEAH, Faruk Surrey GU22 9QP (GB) BHOSALE, Vishal Pune Maharashtra 411046 (IN) BENNETT, Steven Ian Sunbury-on-Thames Middlesex TW16 7DD (GB) HILEY, Alex Sunbury-on-Thames Middlesex TW16 5DB (GB) (74) Representative: Wright, Howard Hugh Burnby  Withers & Rogers LLP 2 London Bridge London SE1 9RA London SE1 9RA (GB)