{"id":3281,"date":"2025-12-23T06:13:19","date_gmt":"2025-12-23T06:13:19","guid":{"rendered":"https:\/\/www.satlabgeo.com\/?post_type=industries&#038;p=3281"},"modified":"2025-12-24T02:28:31","modified_gmt":"2025-12-24T02:28:31","slug":"multibeam-riverbed-mapping-in-complex-waterways-with-the-hydroboat-1200mb","status":"publish","type":"industries","link":"https:\/\/www.satlabgeo.com\/fr\/industries\/multibeam-riverbed-mapping-in-complex-waterways-with-the-hydroboat-1200mb\/","title":{"rendered":"Cartographie multifaisceaux des lits de rivi\u00e8re dans les voies navigables complexes avec l&#039;HydroBoat 1200MB"},"content":{"rendered":"<div style=\"text-align: center; margin: 20px 0;\"><a href=\"https:\/\/www.satlabgeo.com\/wp-content\/uploads\/2025\/12\/Multibeam-Riverbed-Mapping-in-Complex-Waterways-with-the-HydroBoat-1200MB-s.pdf\" style=\"display: inline-block; padding: 12px 24px; background-color: #595757; \/* \u521d\u59cb\u80cc\u666f\u8272\uff08\u9ec4\u8272\uff09 *\/ color: #fff; \/* \u6587\u5b57\u989c\u8272 *\/ text-decoration: none; font-family: Avenir, sans-serif; font-size: 18px; border-radius: 6px; transition: background-color 0.3s;\">T\u00e9l\u00e9charger l&#039;article complet &gt;&gt;&gt;<\/a><\/div>\n<p><span style=\"font-family: Avenir, sans-serif; font-size: 24px; color: #fabf13; line-height: 1.2;\"><em><strong>Introduction<\/strong><\/em><\/span><br \/>\n<span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">L&#039;obtention de donn\u00e9es hydrographiques pr\u00e9cises dans les voies navigables \u00e9troites et fr\u00e9quent\u00e9es repr\u00e9sente un d\u00e9fi de taille pour les m\u00e9thodes de lev\u00e9 traditionnelles. Dans cette \u00e9tude de cas, SatLab a d\u00e9ploy\u00e9 ses <a href=\"https:\/\/www.satlabgeo.com\/fr\/product\/hydroboat-1200mb-usv-multibeam-solution\/\"><strong>Solution multifaisceaux HydroBoat 1200MB USV<\/strong><\/a>, int\u00e9grant \u00e0 la fois des syst\u00e8mes de sonar multifaisceaux et monofaisceaux, afin de r\u00e9aliser une \u00e9tude d\u00e9taill\u00e9e de la rivi\u00e8re Yodo pr\u00e8s du pont Hirakata, dans la pr\u00e9fecture d&#039;Osaka, au Japon.<\/span><\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.satlabgeo.com\/wp-content\/uploads\/2025\/12\/Figure-1-Survey-Site.webp\" alt=\"Site d&#039;enqu\u00eate\" width=\"750\" height=\"300\" class=\"wp-image-940 aligncenter\" \/><\/div>\n<p style=\"text-align: center; font-family: Avenir; font-size: 14px; color: #b8b8b8;\"><i>Figure 1 : Site d&#039;\u00e9tude<\/i><\/p>\n<p><span style=\"font-family: Avenir, sans-serif; font-size: 24px; color: #fabf13; line-height: 1.2;\"><em><strong>D\u00e9fis du projet<\/strong><\/em><\/span><br \/>\n<span style=\"font-family: Avenir, sans-serif; font-size: 18px;\">Le tron\u00e7on de rivi\u00e8re a pos\u00e9 de multiples contraintes en mati\u00e8re de lev\u00e9s topographiques\u00a0:<\/span><\/p>\n<ul style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.4;\">\n<li>Perturbations environnementales : Le passage de bateaux de p\u00eache, de dragues et une pluie l\u00e9g\u00e8re ont interrompu la continuit\u00e9 du relev\u00e9.<\/li>\n<li>Limitations en mati\u00e8re de s\u00e9curit\u00e9 et d&#039;acc\u00e8s\u00a0: La man\u0153uvre manuelle des bateaux a mis en danger la s\u00e9curit\u00e9 du personnel et a entra\u00een\u00e9 des lacunes dans les donn\u00e9es \u00e0 proximit\u00e9 des obstacles.<\/li>\n<li>Exigences de pr\u00e9cision\u00a0: Les \u00e9l\u00e9ments critiques situ\u00e9s \u00e0 proximit\u00e9 des piliers du pont exigeaient des mesures pr\u00e9cises d\u00e9passant les capacit\u00e9s des lev\u00e9s topographiques conventionnels.<\/li>\n<\/ul>\n<p><span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">Les m\u00e9thodes traditionnelles de lev\u00e9s monofaisceaux et manuels peinent \u00e0 maintenir la continuit\u00e9 de la couverture et \u00e0 atteindre une pr\u00e9cision de positionnement \u00e9lev\u00e9e dans ces conditions, ce qui incite \u00e0 utiliser une solution autonome et int\u00e9gr\u00e9e.<\/span><br \/>\n<span style=\"font-family: Avenir, sans-serif; font-size: 24px; color: #fabf13; line-height: 1.2;\"><em><strong>Pr\u00e9sentation de la solution d&#039;enqu\u00eate<\/strong><\/em><\/span><br \/>\n<span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">L&#039;HydroBoat 1200MB combinait les technologies de sonar multifaisceaux et monofaisceau avec la navigation autonome et le traitement avanc\u00e9 des donn\u00e9es pour r\u00e9pondre aux complexit\u00e9s du projet\u00a0:<\/span><\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.satlabgeo.com\/wp-content\/uploads\/2025\/12\/Figure-2-HydroBoat-1200MB-In-Action.webp\" alt=\"HydroBoat-1200MB-En-Action\" width=\"750\" height=\"300\" class=\"aligncenter wp-image-940\" \/><\/div>\n<p style=\"text-align: center; font-family: Avenir; font-size: 14px; color: #b8b8b8;\"><i>Figure 2 : HydroBoat 1200MB en action<\/i><\/p>\n<p><em><span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">Capacit\u00e9 sonar int\u00e9gr\u00e9e<\/span><\/em><\/p>\n<ul style=\"font-family: Avenir, sans-serif; font-size: 16px; line-height: 1.6;\">\n<li>L&#039;\u00e9chosondeur multifaisceaux HydroBeam M2 et l&#039;\u00e9chosondeur monofaisceau offraient des modes d&#039;acquisition flexibles.<\/li>\n<li>Un algorithme SPIN (Sound Speed Profile Inversion) a permis de supprimer le besoin d&#039;un profilage s\u00e9par\u00e9 de la vitesse du son, am\u00e9liorant ainsi l&#039;efficacit\u00e9.<\/li>\n<\/ul>\n<p><em><span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">Navigation et planification autonomes<\/span><\/em><\/p>\n<ul style=\"font-family: Avenir, sans-serif; font-size: 16px; line-height: 1.6;\">\n<li>Les itin\u00e9raires des lev\u00e9s topographiques ont \u00e9t\u00e9 g\u00e9n\u00e9r\u00e9s \u00e0 partir des cartes de base DXF\/KML fournies par le client.<\/li>\n<li>Le drone de surface a ex\u00e9cut\u00e9 des trajectoires pr\u00e9planifi\u00e9es avec un positionnement en temps r\u00e9el et une intervention minimale de l&#039;op\u00e9rateur.<\/li>\n<\/ul>\n<p><em><span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">\u00c9vitement intelligent des obstacles<\/span><\/em><\/p>\n<ul style=\"font-family: Avenir, sans-serif; font-size: 16px; line-height: 1.6;\">\n<li>La plateforme a d\u00e9tect\u00e9 et contourn\u00e9 les obstacles dynamiques, notamment les navires et les structures de ponts, en maintenant une couverture continue tout au long de l&#039;\u00e9tude.<\/li>\n<\/ul>\n<p><em><span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">Flux de travail de traitement en temps r\u00e9el<\/span><\/em><\/p>\n<ul style=\"font-family: Avenir, sans-serif; font-size: 16px; line-height: 1.6;\">\n<li>Le logiciel SLHydroBeam permettait l&#039;affichage en direct de la grille de profondeur, le filtrage du bruit et la v\u00e9rification de la pr\u00e9cision, cr\u00e9ant ainsi un flux de travail sans faille de l&#039;acquisition \u00e0 la livraison.<\/li>\n<\/ul>\n<p><span style=\"font-family: Avenir, sans-serif; font-size: 24px; color: #fabf13; line-height: 1.2;\"><em><strong>Flux de travail d&#039;ex\u00e9cution de l&#039;enqu\u00eate<\/strong><\/em><\/span><br \/>\n<span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\"><strong>1. Planification de la mission :<\/strong> Configuration du syst\u00e8me de coordonn\u00e9es de r\u00e9f\u00e9rence, importation des cartes de base DXF fournies par le client, d\u00e9finition de la zone d&#039;\u00e9tude et g\u00e9n\u00e9ration de lignes de navigation optimis\u00e9es.<\/span><\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.satlabgeo.com\/wp-content\/uploads\/2025\/12\/Figure-3-Mission-Planning.webp\" alt=\"Planification de mission\" width=\"750\" height=\"300\" class=\"aligncenter wp-image-940\" \/><\/div>\n<p style=\"text-align: center; font-family: Avenir; font-size: 14px; color: #b8b8b8;\"><i>Figure 3 : Planification de la mission<\/i><\/p>\n<p><span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\"><strong>2. Acquisition des donn\u00e9es :<\/strong> Le drone de surface effectue des lev\u00e9s transversaux en pleine mer pour calculer le SPIN, puis passe en mode multifaisceaux pour des mesures de lignes automatiques. Les grilles de profondeur ont \u00e9t\u00e9 surveill\u00e9es en temps r\u00e9el afin de suivre la couverture et les variations du terrain.<\/span><\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.satlabgeo.com\/wp-content\/uploads\/2025\/12\/Figure-4-Data-Acquisition.webp\" alt=\"Acquisition de donn\u00e9es\" width=\"750\" height=\"300\" class=\"aligncenter wp-image-940\" \/><\/div>\n<p style=\"text-align: center; font-family: Avenir; font-size: 14px; color: #b8b8b8;\"><i>Figure 4 : Acquisition des donn\u00e9es<\/i><\/p>\n<p><span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\"><strong>3. \u00c9vitement automatique des obstacles\u00a0:<\/strong> Le drone de surface identifie et contourne de mani\u00e8re autonome les obstacles dynamiques et statiques, tels que les navires, les dragues et les piliers de pont, tout en maintenant une acquisition de donn\u00e9es ininterrompue et une couverture de ligne constante.<\/span><\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.satlabgeo.com\/wp-content\/uploads\/2025\/12\/Figure-5-Intelligent-Obstacle-Avoidance.webp\" alt=\"\u00c9vitement intelligent des obstacles\" width=\"750\" height=\"300\" class=\"aligncenter wp-image-940\" \/><\/div>\n<p style=\"text-align: center; font-family: Avenir; font-size: 14px; color: #b8b8b8;\"><i>Figure 5 : \u00c9vitement intelligent des obstacles<\/i><\/p>\n<p><span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\"><strong>4. Traitement des donn\u00e9es et analyse de la qualit\u00e9 :<\/strong> Les donn\u00e9es brutes ont \u00e9t\u00e9 filtr\u00e9es et d\u00e9bruit\u00e9es, et leur exactitude a \u00e9t\u00e9 valid\u00e9e par des comparaisons entre lignes transversales et entre faisceaux multiples et monofaisceaux. Un fort recouvrement des lignes a \u00e9t\u00e9 observ\u00e9, sans stratification ni discontinuit\u00e9. Les piliers de pont et les structures sous-marines ont \u00e9t\u00e9 clairement identifi\u00e9s, et le bruit minimal n&#039;a pas affect\u00e9 l&#039;interpr\u00e9tation du terrain. Des mod\u00e8les 3D du terrain, int\u00e9grant les d\u00e9tails structurels, ont \u00e9t\u00e9 g\u00e9n\u00e9r\u00e9s, fournissant ainsi des jeux de donn\u00e9es exploitables pour l&#039;analyse.<\/span><\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.satlabgeo.com\/wp-content\/uploads\/2025\/12\/Figure-6-Data-Processing.webp\" alt=\"Traitement des donn\u00e9es\" width=\"750\" height=\"300\" class=\"aligncenter wp-image-940\" \/><\/div>\n<p style=\"text-align: center; font-family: Avenir; font-size: 14px; color: #b8b8b8;\"><i>Figure 6 : Traitement des donn\u00e9es<\/i><\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.satlabgeo.com\/wp-content\/uploads\/2025\/12\/Figure-7-Quality-Analysis.webp\" alt=\"Analyse de la qualit\u00e9\" width=\"750\" height=\"300\" class=\"aligncenter wp-image-940\" \/><\/div>\n<p style=\"text-align: center; font-family: Avenir; font-size: 14px; color: #b8b8b8;\"><i>Figure 7 : Analyse de la qualit\u00e9<\/i><\/p>\n<p><span style=\"font-family: Avenir, sans-serif; font-size: 24px; color: #fabf13; line-height: 1.2;\"><em><strong>R\u00e9sultats et livrables<\/strong><\/em><\/span><br \/>\n<em><span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">Livrables finaux\u00a0:<\/span><\/em><br \/>\n<span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">Les r\u00e9sultats comprenaient un mod\u00e8le num\u00e9rique 3D complet de l&#039;ensemble de la zone d&#039;\u00e9tude, couvrant le terrain, les structures sous-marines (supports de canalisations, piliers de pont) et les caract\u00e9ristiques d&#039;affouillement d\u00e9taill\u00e9es, fournissant des donn\u00e9es compl\u00e8tes et exploitables pour l&#039;analyse technique.<\/span><\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.satlabgeo.com\/wp-content\/uploads\/2025\/12\/Figure-8-3D-Data-Visualization.webp\" alt=\"Visualisation de donn\u00e9es 3D\" width=\"750\" height=\"300\" class=\"aligncenter wp-image-940\" \/><\/div>\n<p style=\"text-align: center; font-family: Avenir; font-size: 14px; color: #b8b8b8;\"><i>Figure 8 : Visualisation des donn\u00e9es 3D<\/i><\/p>\n<p><em><span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">V\u00e9rification de l&#039;exactitude\u00a0:<\/span><\/em><br \/>\n<span style=\"font-family: Avenir, sans-serif; font-size: 18px;\">L&#039;ensemble de donn\u00e9es non filtr\u00e9es r\u00e9pondait aux normes de l&#039;ordonnance sp\u00e9ciale de l&#039;OHI.<\/span><\/p>\n<ul style=\"font-family: Avenir, sans-serif; font-size: 16px; margin-top: 0 !important; \/* \u5f3a\u5236\u7f29\u5c0f\u4e0espan\u7684\u95f4\u8ddd\uff0c\u53ef\u65392px\/0px *\/ margin-bottom: 20px !important; \/* \u5f3a\u5236\u6e05\u96f6\u5e95\u90e8\u95f4\u8ddd *\/ margin-left: 0 !important; \/* \u5f3a\u5236\u6e05\u96f6\u5de6\u4fa7\u5916\u90e8\u95f4\u8ddd *\/ margin-right: 0 !important;\">\n<li><strong>99.48%<\/strong> Le nombre de points d&#039;\u00e9l\u00e9vation multifaisceaux se situait dans les limites de tol\u00e9rance admissibles.<\/li>\n<li><strong>97.41%<\/strong> des points de profondeur ont satisfait aux crit\u00e8res de pr\u00e9cision requis.<\/li>\n<\/ul>\n<div style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.satlabgeo.com\/wp-content\/uploads\/2025\/12\/Figure-9-Elevation-Accuracy-Verification.webp\" alt=\"V\u00e9rification de la pr\u00e9cision de l&#039;altitude\" width=\"750\" height=\"300\" class=\"aligncenter wp-image-940\" \/><\/div>\n<p style=\"text-align: center; font-family: Avenir; font-size: 14px; color: #b8b8b8;\"><i>Figure 9 : V\u00e9rification de la pr\u00e9cision de l&#039;altitude<\/i><\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.satlabgeo.com\/wp-content\/uploads\/2025\/12\/Figure-10-Depth-Accuracy-Verification.webp\" alt=\"V\u00e9rification de la pr\u00e9cision en profondeur\" width=\"750\" height=\"300\" class=\"aligncenter wp-image-940\" \/><\/div>\n<p style=\"text-align: center; font-family: Avenir; font-size: 14px; color: #b8b8b8;\"><i>Figure 10 : V\u00e9rification de la pr\u00e9cision de la profondeur<\/i><\/p>\n<p><span style=\"font-family: Avenir, sans-serif; font-size: 24px; color: #fabf13; line-height: 1.2;\"><em><strong>Valeur du projet<\/strong><\/em><\/span><\/p>\n<div style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.5;\">\n<ul style=\"list-style-type: disc;\">\n<li style=\"margin-bottom: 12px;\"><strong>Couverture compl\u00e8te dans les zones difficiles<\/strong><br \/>\nLa cartographie autonome par USV a permis une exploitation en toute s\u00e9curit\u00e9 dans des zones peu profondes, \u00e9troites et encombr\u00e9es d&#039;obstacles o\u00f9 les bateaux avec \u00e9quipage ne peuvent pas assurer une couverture constante.<\/li>\n<li style=\"margin-bottom: 12px;\"><strong>Pr\u00e9cision certifi\u00e9e<\/strong><br \/>\nLa conformit\u00e9 v\u00e9rifi\u00e9e aux normes des ordres sp\u00e9ciaux de l&#039;OHI garantit des r\u00e9sultats fiables pour l&#039;\u00e9valuation structurelle et le suivi \u00e0 long terme.<\/li>\n<li style=\"margin-bottom: 12px;\"><strong>Op\u00e9rations s\u00fbres et efficaces<\/strong><br \/>\nLa navigation autonome et l&#039;\u00e9vitement des obstacles ont r\u00e9duit les risques sur l&#039;eau et minimis\u00e9 les allers-retours, am\u00e9liorant ainsi l&#039;efficacit\u00e9 op\u00e9rationnelle globale.<\/li>\n<li><strong>Produits de donn\u00e9es exploitables<\/strong><br \/>\nLes nuages de points 3D en temps r\u00e9el, les grilles d&#039;\u00e9l\u00e9vation en direct et la sortie XYZ directe ont simplifi\u00e9 le contr\u00f4le qualit\u00e9 sur site et le traitement en aval.<\/li>\n<\/ul>\n<\/div>\n<p><span style=\"font-family: Avenir, sans-serif; font-size: 24px; color: #fabf13; line-height: 1.2;\"><em><strong>Conclusion<\/strong><\/em><\/span><br \/>\n<span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">Ce projet met en lumi\u00e8re l&#039;importance croissante des drones multifaisceaux autonomes dans les flux de travail hydrographiques actuels. Dans les voies navigables \u00e9troites et encombr\u00e9es d&#039;obstacles o\u00f9 les navires traditionnels peinent \u00e0 progresser, l&#039;HydroBoat 1200MB a assur\u00e9 une couverture continue, des performances stables et une pr\u00e9cision conforme aux sp\u00e9cifications, d\u00e9montrant ainsi sa fiabilit\u00e9 pour les lev\u00e9s hydrographiques complexes.<\/span><\/p>\n<p><span style=\"font-family: Avenir, sans-serif; font-size: 18px; line-height: 1.6;\">Gr\u00e2ce \u00e0 sa navigation autonome, son syst\u00e8me d&#039;\u00e9vitement d&#039;obstacles en temps r\u00e9el et ses donn\u00e9es 3D pr\u00eates \u00e0 l&#039;emploi, l&#039;HydroBoat 1200MB permet des op\u00e9rations plus s\u00fbres, plus rapides et plus \u00e9volutives. Pour les travaux fluviaux, la surveillance des ponts et la gestion des voies navigables, il offre une solution moderne et efficace pour la collecte de donn\u00e9es haute r\u00e9solution essentielles \u00e0 la prise de d\u00e9cision.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Ce cas illustre l&#039;utilisation de l&#039;HydroBoat 1200MB pour r\u00e9aliser une cartographie multifaisceaux haute r\u00e9solution du lit d&#039;une rivi\u00e8re japonaise. <\/p>","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_links_to":"","_links_to_target":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Multibeam Riverbed Mapping in Complex Waterways with the HydroBoat 1200MB | Global Satellite Positioning Solutions | SatLab Geosolutions AB<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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