{"id":10910,"date":"2025-12-16T19:05:22","date_gmt":"2025-12-17T03:05:22","guid":{"rendered":"https:\/\/sunflaser.com\/?p=10910"},"modified":"2026-06-18T02:17:02","modified_gmt":"2026-06-18T09:17:02","slug":"how-wider-divergence-angle-revolutionizes-long-range-dji-drone-detection-with-advanced-laser-rangefinders","status":"publish","type":"post","link":"https:\/\/sunflaser.com\/fr\/how-wider-divergence-angle-revolutionizes-long-range-dji-drone-detection-with-advanced-laser-rangefinders\/","title":{"rendered":"Comment un angle de divergence plus large r\u00e9volutionne la d\u00e9tection des drones DJI \u00e0 longue port\u00e9e avec les t\u00e9l\u00e9m\u00e8tres laser avanc\u00e9s"},"content":{"rendered":"

Le d\u00e9fi de la d\u00e9tection des petites cibles<\/h3>\n

Conventionnel t\u00e9l\u00e9m\u00e8tres laser<\/strong> se heurtent \u00e0 des difficult\u00e9s consid\u00e9rables lorsqu'il s'agit de mesurer des cibles de petite taille et \u00e0 faible r\u00e9flectivit\u00e9, comme les drones grand public. Les dispositifs standard \u00e9chouent souvent au-del\u00e0 de 300 m\u00e8tres lorsqu'ils ciblent un drone DJI typique, ce qui cr\u00e9e de s\u00e9rieuses limitations pour les applications de s\u00e9curit\u00e9, d'arpentage et de d\u00e9fense. Cet \u00e9cart de performance persiste malgr\u00e9 les progr\u00e8s r\u00e9alis\u00e9s dans d'autres technologies optiques.<\/p>\n

Perc\u00e9e de l'ing\u00e9nierie optique<\/h3>\n

Sup\u00e9riorit\u00e9 technique pour la d\u00e9tection des drones<\/h3>\n

La nouvelle g\u00e9n\u00e9ration d'appareils Sunflaser m\u00e8tres de distance laser<\/strong> (SFB1500AW<\/a>, SFB2000AW<\/a>et SFB3000AW<\/a>) r\u00e9sout ce probl\u00e8me critique gr\u00e2ce \u00e0 une nouvelle approche de l'optimisation de la divergence du faisceau. En concevant soigneusement le mod\u00e8le d'\u00e9mission laser, ces dispositifs maintiennent une densit\u00e9 d'\u00e9nergie suffisante au niveau de la cible tout en assurant une couverture de faisceau ad\u00e9quate pour capturer un signal de retour suffisant \u00e0 partir de structures de drones petites et irr\u00e9guli\u00e8res.<\/p>\n

\u201cL'innovation cl\u00e9 ne consiste pas simplement \u00e0 \u00e9largir le faisceau\u201d, explique notre responsable de l'ing\u00e9nierie optique. \u201cIl s'agit de trouver le point de divergence pr\u00e9cis qui maximise le retour du signal des petites cibles tout en pr\u00e9servant la pr\u00e9cision de la t\u00e9l\u00e9m\u00e9trie et la s\u00e9curit\u00e9 des yeux.\u201d<\/p>\n

Notre \u00e9quipe d'ing\u00e9nieurs a mis au point trois mod\u00e8les compl\u00e9mentaires dot\u00e9s de capacit\u00e9s sp\u00e9cialis\u00e9es pour r\u00e9pondre \u00e0 diverses exigences op\u00e9rationnelles :<\/p>\n\n\n\n\n\n\n\n
Mod\u00e8le<\/th>\nPort\u00e9e maximale (drone)<\/th>\nDivergence du faisceau<\/th>\nPr\u00e9cision<\/th>\nTemp\u00e9rature de fonctionnement<\/th>\n<\/tr>\n<\/thead>\n
SFB1500AW<\/td>\n\u22651500m<\/td>\n\u22651mrad<\/td>\n\u2264\u00b11m<\/td>\n-40\u2103\uff5e+60\u2103<\/td>\n<\/tr>\n
SFB2000AW<\/td>\n\u22652000m<\/td>\n\/<\/td>\n\u2264\u00b12m<\/td>\n-40\u2103\uff5e+60\u2103<\/td>\n<\/tr>\n
SFB3000AW<\/td>\n\u22653000m<\/td>\n0,7~0,8mad<\/td>\n\u2264\u00b12m<\/td>\n-40\u2103\uff5e+60\u2103<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Les trois mod\u00e8les sont dot\u00e9s d'un laser 1535 nm sans danger pour les yeux, de syst\u00e8mes de compensation de la temp\u00e9rature et d'algorithmes avanc\u00e9s de traitement des signaux qui filtrent le bruit ambiant tout en pr\u00e9servant les faibles signaux de retour des petites cibles.<\/p>\n

Applications dans le monde r\u00e9el<\/h3>\n

Ces syst\u00e8mes de mesure laser \u00e0 longue port\u00e9e<\/strong> offrent des capacit\u00e9s qui changent la donne dans de nombreux secteurs. Les \u00e9quipes de s\u00e9curit\u00e9 qui surveillent les infrastructures critiques peuvent d\u00e9sormais d\u00e9tecter les drones non autoris\u00e9s \u00e0 des distances qui permettent un temps de r\u00e9ponse significatif. Les g\u00e9om\u00e8tres travaillant dans des environnements complexes b\u00e9n\u00e9ficient de mesures fiables sur de petits points de r\u00e9f\u00e9rence \u00e0 des distances sans pr\u00e9c\u00e9dent. Les applications de d\u00e9fense b\u00e9n\u00e9ficient de capacit\u00e9s d'alerte pr\u00e9coce contre les menaces que repr\u00e9sentent les petits drones.<\/p>\n

Questions fr\u00e9quemment pos\u00e9es<\/h3>\n

Q : Comment ces t\u00e9l\u00e9m\u00e8tres laser parviennent-ils \u00e0 d\u00e9tecter les drones plus longtemps que les mod\u00e8les conventionnels ?<\/strong>
R : Notre syst\u00e8me exclusif d'optimisation de la divergence du faisceau cr\u00e9e l'\u00e9quilibre id\u00e9al entre la densit\u00e9 d'\u00e9nergie et la zone de couverture, en capturant plus de signaux de retour \u00e0 partir de petites surfaces cibles.<\/p>\n

Q : Ces t\u00e9l\u00e9m\u00e8tres laser peuvent-ils \u00eatre utilis\u00e9s en toute s\u00e9curit\u00e9 \u00e0 proximit\u00e9 de personnes ?<\/strong>
R : Oui, les trois mod\u00e8les fonctionnent \u00e0 une longueur d'onde de 1535 nm, qui est class\u00e9e comme sans danger pour les yeux et pr\u00e9sente un risque minimal pour les op\u00e9rateurs humains et les passants.<\/p>\n

Q : Quelles sont les conditions m\u00e9t\u00e9orologiques qui affectent les performances ?<\/strong>
R : Comme pour tous les syst\u00e8mes optiques, un brouillard \u00e9pais, la pluie ou la neige r\u00e9duisent la port\u00e9e effective. Cependant, nos algorithmes de traitement du signal maintiennent les performances dans des conditions atmosph\u00e9riques difficiles mieux que les t\u00e9l\u00e9m\u00e8tres conventionnels.<\/p>\n

Q : Ces dispositifs peuvent-ils s'int\u00e9grer aux syst\u00e8mes de s\u00e9curit\u00e9 existants ?<\/strong>
R : Absolument. Chaque mod\u00e8le est dot\u00e9 d'interfaces de communication RS422\/TTL et de protocoles standard pour une int\u00e9gration transparente avec les syst\u00e8mes de commande et de contr\u00f4le.<\/p>\n

\n

Cette avanc\u00e9e technologique red\u00e9finit ce qui est possible en mati\u00e8re de d\u00e9tection de petites cibles. Lorsque votre mission n\u00e9cessite une mesure de la distance par laser<\/strong> Les t\u00e9l\u00e9m\u00e8tres laser Shengfei optimis\u00e9s en fonction de la divergence offrent les performances dont vous avez besoin pour atteindre des cibles de la taille d'un drone \u00e0 de longues distances. Visitez notre site Web pour d\u00e9couvrir le mod\u00e8le qui r\u00e9pond le mieux \u00e0 vos besoins op\u00e9rationnels.<\/p>\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

The Challenge of Small Target Detection Conventional laser rangefinders struggle significantly when measuring small, low-reflectivity targets like consumer drones. Standard devices often fail beyond 300 meters when targeting a typical DJI drone, creating serious limitations for security, surveying, and defense applications. This performance gap has persisted despite advances in other optical technologies. Breakthrough Optical Engineering […]<\/p>\n","protected":false},"author":1,"featured_media":10921,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10910","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sunflaser-news"],"blocksy_meta":[],"yoast_head":"\n1535nm Laser Rangefinder \u2013 3000m Drone Detection<\/title>\n<meta name=\"description\" content=\"1535nm laser rangefinder for drone detection \u2013 3000m range, \u00b11m accuracy, eye\u2011safe. 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