CHERIET AzeddineDEMMOUNI Slimane2026-10-012025https://dspace.univ-ghardaia.edu.dz/handle/123456789/10882Specialty : Automation and systems KHATTARA Abdelouahab/SupervisorThisworkpresentsthedesignanddevelopmentofasmartindustrialsafetyhelmet, awearablesystemthatenablesreal-timewirelessvoicecommunicationbetween workersinnoisyindustrialenvironments.Thehelmetcapturestheworker’svoice, transmitsitoveralocalwirelessnetworktootherhelmets,andusesanaudiobuffer toensuresmoothandintelligibleplayback.Acentralserverroutestheaudio streams,recordseachworksession,andautomaticallyconvertsspeechintotextto generatestructuredshiftreports.Thehelmetalsoprovidesanindependent emergencychannelthatsendsadistresssignalwiththeworker’sapproximate locationoveraseparatelongrangeradiolink,fullydecoupledfromthemainvoice communicationchannel.Experimentaltestsshowanoverallmouth-to-eardelay below150ms,confirmingthepracticalviabilityoftheproposedsystemforsafety communicationandmonitoringinmodernindustrialenvironments.enSmart helmetIndustrial safetyWireless communicationSpeech recognitionEmerGency localisation.Design and Development of a Smart Helmet for Industrial Safety Monitoring and Data AnalysisThesis