{"id":32411,"date":"2025-08-28T14:24:05","date_gmt":"2025-08-28T18:24:05","guid":{"rendered":"https:\/\/world.dan.org\/?post_type=dan_alert_diver&#038;p=32411"},"modified":"2025-08-28T14:24:20","modified_gmt":"2025-08-28T18:24:20","slug":"diver-recall-systems","status":"publish","type":"dan_alert_diver","link":"https:\/\/world.dan.org\/fr\/alert-diver\/article\/diver-recall-systems\/","title":{"rendered":"Syst\u00e8mes de Rappel des Plongeurs"},"content":{"rendered":"<p>Que ce soit pour la plong\u00e9e r\u00e9cr\u00e9ative, la recherche ou le travail commercial, la plong\u00e9e place les humains dans un environnement fondamentalement dangereux. La visibilit\u00e9, les effets de la pression et la distorsion du son limitent la communication entre les plongeurs et l\u2019\u00e9quipe en surface, rendant la coordination en temps r\u00e9el difficile. Le temps de r\u00e9action est crucial en situation d\u2019urgence, et tout retard peut \u00eatre dangereux.&nbsp;<\/p>\n\n\n\n<p>Les syst\u00e8mes de rappel des plongeurs sont des outils de s\u00e9curit\u00e9 essentiels qui comblent cette lacune de communication, permettant aux \u00e9quipes en surface d\u2019alerter imm\u00e9diatement les plongeurs lorsque les conditions changent ou qu\u2019une urgence survient, n\u00e9cessitant la fin de la plong\u00e9e ou une autre r\u00e9ponse d\u2019urgence.&nbsp;<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\" id=\"h-common-methods\">M\u00e9thodes Courantes<\/h3>\n\n\n\n<p>Les \u00e9quipes en surface peuvent signaler les plongeurs en frappant une gueuse (poids) de plong\u00e9e, un marteau ou un tournevis contre la coque du bateau ou l\u2019\u00e9chelle. De nombreux plongeurs rapportent qu\u2019il leur faut un certain temps pour reconna\u00eetre le rappel, m\u00eame lorsqu\u2019ils s\u2019y attendent.&nbsp;<\/p>\n\n\n\n<p>Les \u00e9tiquettes de parachute de palier (SMB) consistent en un mousqueton ou un \u00e9merillon envoy\u00e9 le long du fil du plongeur, avec une note ou une petite ardoise attach\u00e9e. Les plongeurs sentent l\u2019\u00e9tiquette toucher leur spool ou moulinet et lisent le message expliquant la situation. Cette m\u00e9thode n\u00e9cessite qu\u2019un plongeur ait d\u00e9ploy\u00e9 un parachute et que l\u2019op\u00e9rateur en surface puisse atteindre celui-ci et manipuler la ligne.&nbsp;<\/p>\n\n\n\n<p>Faire vrombir le moteur du bateau est largement consid\u00e9r\u00e9 comme un signal peu fiable et incoh\u00e9rent. Les plongeurs ne peuvent souvent pas le distinguer du bruit normal du bateau, en particulier lors de plong\u00e9es profondes ou dans des zones \u00e0 forte circulation maritime.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"337\" src=\"https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_108_Gear-450x337-1.webp\" alt=\"An underwater speaker attached to a cable dangles in the water at an optimized depth to transmit signals from the surface to divers underwater.\" class=\"wp-image-32413\" srcset=\"https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_108_Gear-450x337-1.webp 450w, https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_108_Gear-450x337-1-360x270.webp 360w, https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_108_Gear-450x337-1-16x12.webp 16w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><figcaption class=\"wp-element-caption\">Un haut-parleur sous-marin fix\u00e9 \u00e0 un c\u00e2ble pendant dans l\u2019eau \u00e0 une profondeur optimis\u00e9e pour transmettre les signaux de la surface vers les plongeurs.\n\u00a9 Courtesy Oceanears<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-pyrotechnics\">Pyrotechnie<\/h3>\n\n\n\n<p>Un syst\u00e8me pyrotechnique de rappel des plongeurs, souvent appel\u00e9 thunder flash, est un outil sp\u00e9cialis\u00e9 utilisant des d\u00e9tonations sous-marines contr\u00f4l\u00e9es pour envoyer des signaux forts et indiscutables aux plongeurs. Lorsqu\u2019un thunder flash explose sous l\u2019eau, il g\u00e9n\u00e8re une onde de choc intense dans toutes les directions. Le son et l\u2019onde de pression qui en r\u00e9sultent se d\u00e9placent efficacement dans l\u2019eau, et les plongeurs rapportent entendre et sentir la d\u00e9tonation sur plusieurs dizaines de m\u00e8tres.&nbsp;<\/p>\n\n\n\n<p>Certains dispositifs s\u2019allument en surface puis sont laiss\u00e9s tomber \u00e0 l\u2019eau ; d\u2019autres fonctionnent de mani\u00e8re hydrostatique et explosent \u00e0 une profondeur sp\u00e9cifique. Chaque type pr\u00e9sente des inconv\u00e9nients selon l\u2019environnement de plong\u00e9e \u2014 les plongeurs peuvent \u00eatre moins profonds que la profondeur de d\u00e9clenchement d\u2019un dispositif hydrostatique ou l\u2019allumage en surface peut blesser l\u2019op\u00e9rateur et pr\u00e9senter des risques graves pr\u00e8s de bouteilles d\u2019oxyg\u00e8ne ou de carburant.&nbsp;<\/p>\n\n\n\n<p>Les thunder flashes sont de moins en moins utilis\u00e9s dans l\u2019industrie de la plong\u00e9e pour plusieurs raisons. Les op\u00e9rations de plong\u00e9e r\u00e9cr\u00e9ative les \u00e9vitent en raison des risques de responsabilit\u00e9, car ils peuvent provoquer des l\u00e9sions auditives, un barotraumatisme ou une d\u00e9sorientation importante. Les plongeurs soucieux de l\u2019environnement n\u2019aiment pas jeter dans l\u2019eau des dispositifs non r\u00e9cup\u00e9rables. &nbsp;<\/p>\n\n\n\n<p>Bien qu\u2019ils ne conviennent pas \u00e0 toutes les op\u00e9rations, les dispositifs pyrotechniques sont encore employ\u00e9s dans certains contextes lorsque l\u2019urgence du rappel d\u00e9passe les risques potentiels. Ils constituent \u00e9galement la m\u00e9thode principale dans divers environnements sp\u00e9cialis\u00e9s o\u00f9 des signaux imm\u00e9diats et indiscutables sont n\u00e9cessaires. Les unit\u00e9s militaires, les op\u00e9rations commerciales et certaines \u00e9quipes de s\u00e9curit\u00e9 publique plongent souvent dans des conditions o\u00f9 la conscience situationnelle sous-marine est r\u00e9duite, o\u00f9 il n\u2019y a pas de temps pour d\u00e9ployer d\u2019autres m\u00e9thodes de rappel, et o\u00f9 une r\u00e9action rapide est indispensable.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"675\" src=\"https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_107_Gear-450x675-1.webp\" alt=\"Divers must be briefed in advance on what primary and secondary systems are in use and how to respond when a recall device is activated.\" class=\"wp-image-32412\" srcset=\"https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_107_Gear-450x675-1.webp 450w, https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_107_Gear-450x675-1-240x360.webp 240w, https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_107_Gear-450x675-1-8x12.webp 8w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><figcaption class=\"wp-element-caption\">Les plongeurs doivent \u00eatre brief\u00e9s \u00e0 l\u2019avance sur les syst\u00e8mes principaux et secondaires utilis\u00e9s, ainsi que sur la fa\u00e7on d\u2019y r\u00e9pondre lorsqu\u2019un dispositif de rappel est activ\u00e9. Mal identifier ou ignorer le signal peut entra\u00eener de la confusion et compromettre la s\u00e9curit\u00e9. \u00a9 Courtoisie Ocean Technology Systems<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"675\" src=\"https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_109_Gear-450x675-1.webp\" alt=\"Surface crews can signal divers by banging a dive weight, hammer, or screwdriver against a boat hull or dive ladder\" class=\"wp-image-32414\" srcset=\"https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_109_Gear-450x675-1.webp 450w, https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_109_Gear-450x675-1-240x360.webp 240w, https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_109_Gear-450x675-1-8x12.webp 8w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><figcaption class=\"wp-element-caption\">Les \u00e9quipes en surface peuvent signaler les plongeurs en frappant une gueuse (poids de plong\u00e9e), un marteau ou un tournevis contre la coque ou l\u2019\u00e9chelle \u2014 mais de nombreux plongeurs rapportent qu\u2019ils mettent du temps \u00e0 s\u2019en rendre compte. \u00a9 Stephen Frink<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-acoustic\">Acoustique<\/h3>\n\n\n\n<p>Les syst\u00e8mes acoustiques de rappel utilisent des ondes sonores pour transmettre des signaux de la surface vers les plongeurs, permettant aux bateaux et aux \u00e9quipes d\u2019alerter ou de rappeler rapidement les plongeurs. Un haut-parleur sous-marin fix\u00e9 \u00e0 un c\u00e2ble pend dans l\u2019eau \u00e0 une profondeur optimis\u00e9e pour diffuser le son. L\u2019op\u00e9rateur en surface peut transmettre diff\u00e9rents motifs sonores, des signaux d\u2019alarme, des messages pr\u00e9enregistr\u00e9s, de la musique ou parler directement dans un microphone pour envoyer des commandes et avertissements.&nbsp;<\/p>\n\n\n\n<p>Les transmissions sont suffisamment puissantes pour \u00eatre per\u00e7ues par un plongeur portant une cagoule \u00e0 plusieurs dizaines de m\u00e8tres. Les plongeurs n\u2019ont pas besoin d\u2019\u00e9quipement \u00e9lectronique sp\u00e9cial \u2014 le son se propage dans toutes les directions et est audible \u00e0 l\u2019oreille.&nbsp;<\/p>\n\n\n\n<p>L\u2019environnement physique \u2014 comme la topographie, la composition du fond, les structures et les courants \u2014 peut affecter consid\u00e9rablement les performances d\u2019un dispositif acoustique. La port\u00e9e de projection et la compr\u00e9hension du message peuvent \u00eatre fortement r\u00e9duites ; les op\u00e9rateurs doivent tenir compte du bruit ambiant et chercher \u00e0 le minimiser autant que possible. &nbsp;<\/p>\n\n\n\n<p>Les plongeurs rapportent souvent que le bruit d\u2019expiration rend difficile l\u2019identification de la source d\u2019un son soudain. Lorsqu\u2019on utilise des messages vocaux enregistr\u00e9s ou transmis en direct, un signal d\u2019alerte avant le message peut aider \u00e0 attirer l\u2019attention des plongeurs et les pr\u00e9parer \u00e0 l\u2019information \u00e0 suivre.&nbsp;<\/p>\n\n\n\n<p>Des tests intensifs montrent \u00e9galement que la r\u00e9p\u00e9tition de phrases courtes et claires am\u00e9liore grandement l\u2019intelligibilit\u00e9. Les plongeurs peuvent mal interpr\u00e9ter des commandes vagues ou des messages complexes si les instructions ne sont pas explicites.&nbsp;<\/p>\n\n\n\n<p>Il est essentiel que les plongeurs respectent un p\u00e9rim\u00e8tre de s\u00e9curit\u00e9 autour du haut-parleur, tel qu\u2019indiqu\u00e9 dans le manuel de l\u2019appareil. L\u2019op\u00e9rateur doit communiquer cette zone lors du briefing pr\u00e9-plong\u00e9e. Bien que ces syst\u00e8mes ne provoquent pas une g\u00eane physique comparable \u00e0 un thunder flash ou un ping de sonar, leurs transmissions audio sous-marines puissantes peuvent entra\u00eener une perte auditive permanente ou des dommages physiologiques s\u2019ils sont mal utilis\u00e9s.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusion<\/h3>\n\n\n\n<p>Les syst\u00e8mes de rappel permettent aux op\u00e9rateurs d\u2019alerter ou de rappeler les plongeurs en cas d\u2019urgence, mais ils n\u2019\u00e9liminent pas les dangers inh\u00e9rents \u00e0 la plong\u00e9e ni le besoin d\u2019un plan d\u2019action d\u2019urgence complet. Il est n\u00e9cessaire de comprendre les avantages et les limites du syst\u00e8me utilis\u00e9 et de reconna\u00eetre si le plan de plong\u00e9e comporte des \u00e9l\u00e9ments qui compliquent un rappel rapide, comme des obligations de d\u00e9compression ou une plong\u00e9e d\u00e9rivante. Les plongeurs doivent \u00eatre brief\u00e9s \u00e0 l\u2019avance sur les syst\u00e8mes principaux et secondaires et sur la fa\u00e7on d\u2019y r\u00e9pondre.<\/p>\n\n\n\n<p>Mal identifier ou ignorer le signal peut mener \u00e0 de la confusion et compromettre la s\u00e9curit\u00e9. En cas de rappel, respectez votre vitesse de remont\u00e9e et effectuez toutes vos obligations de d\u00e9compression avant de faire surface.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-dan-light-gray-color has-alpha-channel-opacity has-dan-light-gray-background-color has-background is-style-wide\"\/>\n\n\n\n<p class=\"has-small-font-size\">\u00a9&nbsp;<em>Alert Diver<\/em>&nbsp;\u2013 Q3 2025<\/p>","protected":false},"excerpt":{"rendered":"<p>Whether for recreation, research, or commercial work, diving puts humans in a fundamentally hazardous environment. Visibility, pressure effects, and sound distortion limit communication between divers and surface teams, making real-time [&hellip;]<\/p>\n","protected":false},"featured_media":32415,"template":"","dan_alert_diver_categories":[71],"dan_alert_diver_issues":[511],"class_list":["post-32411","dan_alert_diver","type-dan_alert_diver","status-publish","has-post-thumbnail","hentry","dan_alert_diver_categories-gear","dan_alert_diver_issues-q3-2025"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Diver Recall Systems - DAN World<\/title>\n<meta name=\"description\" content=\"Whether for recreation, research, or commercial work, diving puts humans in a fundamentally hazardous environment. Visibility, pressure effects, and sound distortion limit communication between divers and surface teams, making real-time coordination difficult. 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Response time is critical in emergencies, and delays can be dangerous.","og_url":"https:\/\/world.dan.org\/fr\/alert-diver\/article\/diver-recall-systems\/","og_site_name":"DAN World","article_modified_time":"2025-08-28T18:24:20+00:00","og_image":[{"width":1200,"height":600,"url":"https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_110_Gear-1200x600-1.webp","type":"image\/webp"}],"twitter_card":"summary_large_image","twitter_description":"Whether for recreation, research, or commercial work, diving puts humans in a fundamentally hazardous environment.","twitter_misc":{"Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/world.dan.org\/alert-diver\/article\/diver-recall-systems\/","url":"https:\/\/world.dan.org\/alert-diver\/article\/diver-recall-systems\/","name":"Diver Recall Systems - DAN World","isPartOf":{"@id":"https:\/\/world.dan.org\/es\/#website"},"primaryImageOfPage":{"@id":"https:\/\/world.dan.org\/alert-diver\/article\/diver-recall-systems\/#primaryimage"},"image":{"@id":"https:\/\/world.dan.org\/alert-diver\/article\/diver-recall-systems\/#primaryimage"},"thumbnailUrl":"https:\/\/world.dan.org\/wp-content\/uploads\/2025\/08\/Q3_110_Gear-1200x600-1.webp","datePublished":"2025-08-28T18:24:05+00:00","dateModified":"2025-08-28T18:24:20+00:00","description":"Que ce soit pour la plong\u00e9e r\u00e9cr\u00e9ative, la recherche ou le travail commercial, la plong\u00e9e place les humains dans un environnement fondamentalement dangereux. La visibilit\u00e9, les effets de la pression et la distorsion du son limitent la communication entre les plongeurs et l\u2019\u00e9quipe en surface, rendant la coordination en temps r\u00e9el difficile. 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