{"id":926,"date":"2025-10-07T04:53:41","date_gmt":"2025-10-07T03:53:41","guid":{"rendered":"https:\/\/blog.jsoncrew.com\/?p=926"},"modified":"2026-05-07T17:54:00","modified_gmt":"2026-05-07T15:54:00","slug":"bluetooth-6-1-i-angle-of-departure-jak-dziala-precyzyjna-location-i-jak-ja-wykorzystac-w-praktyce","&quot;status&quot;":"publish","type":"post","link":"https:\/\/jsoncrew.com\/en\/2025\/10\/07\/bluetooth-6-1-i-angle-of-departure-jak-dziala-precyzyjna-location-i-jak-ja-wykorzystac-w-praktyce\/","title":{"rendered":"Bluetooth 6.1 and Angle of Departure: How Precise Location Works and How to Use It in Practice"},"content":{"rendered":"<p>Standard BLE said only one thing:<br \/><strong>\u201eThe device is near or far.\u201d<\/strong><\/p>\n<p>That is, RSSI (signal strength). The problem:<\/p>\n<ul class=\"wp-block-list\">\n<li>walls attenuate the signal<\/li>\n<li>people are covering it up<\/li>\n<li>reflections off the metal strengthen it<\/li>\n<\/ul>\n<p>The result? A location error of 5-15 meters.<br \/>Useless for industry, hospitals or warehouses.<\/p>\n<p>What was needed was not \u201ehow strong the signal,\u201d but:<br \/><strong>\u201eFrom which direction he comes \/ in which direction he leaves.\u201d<\/strong><\/p>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\" id=\"h-czym-jest-angle-of-departure-aod\">What is Angle of Departure (AoD)?<\/h2>\n<p><!-- jsoncrew-inline-cta --><\/p>\n<div class=\"jsoncrew-inline-cta\" style=\"margin:2.5rem 0;padding:1.75rem 1.5rem;background:linear-gradient(135deg,#020C08,#0a3a28);border:1px solid rgba(1,108,71,.4);border-left:4px solid #016C47;border-radius:10px;color:#e7ebe9;\">\n<div style=\"font-size:11px;text-transform:uppercase;letter-spacing:.14em;color:#0a9b68;font-weight:700;margin-bottom:.5rem;\">NEWSLETTER<\/div>\n<h3 style=\"font-size:1.3rem;margin:0 0 .75rem;color:#fff;line-height:1.35;\">One eemail with a concrete point each week.<\/h3>\n<p style=\"margin:0 0 1.25rem;color:#a8b1ad;font-size:.95rem;line-height:1.5;\">AI, B2B sales, and implementations. No spam, unsubscribe with one click.<\/p>\n<p>  <a href=\"\/en\/kontakt\/?utm_source=blog&#038;utm_medium=inline_cta&#038;utm_campaign=bluetooth-6-1-i-angle-of-departure-jak-dziala-precyzyjna-lokalizacja-i-jak-ja-wykorzystac-w-praktyce\" style=\"display:inline-block;padding:.85rem 1.5rem;background:linear-gradient(135deg,#016C47,#0a9b68);color:#fff;text-decoration:none;border-radius:8px;font-weight:600;font-size:.95rem;box-shadow:0 4px 12px rgba(1,108,71,.3);\">Sign up<\/a>\n<\/div>\n<p>AoD =.. <strong>The angle at which the signal leaves the transmitter<\/strong>.<\/p>\n<p>In Bluetooth Direction Finding systems, we have two approaches:<\/p>\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<thead>\n<tr>\n<th>Technology<\/th>\n<th>Who counts the direction?<\/th>\n<th>Where are the antennas?<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>AoA (Angle of Arrival)..<\/strong><\/td>\n<td>receiver<\/td>\n<td>On the infrastructure side<\/td>\n<\/tr>\n<tr>\n<td><strong>AoD (Angle of Departure)..<\/strong><\/td>\n<td>receiver<\/td>\n<td>on the transmitter side<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>In AoD:<\/p>\n<ul class=\"wp-block-list\">\n<li>The transmitter (e.g., beacon, tag, device) has a <strong>array of antennas<\/strong><\/li>\n<li>sends a signal in a controlled phase sequence<\/li>\n<li>receiver analyzes phase differences<\/li>\n<li>calculates the angle at which the signal \u201ewent out\u201d<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\" id=\"h-jak-to-dziala-technicznie\">How does it work technically?<\/h2>\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/la.mathworks.com\/help\/examples\/bluetooth\/win64\/BLEPositioningExample_01.png\" alt=\"https:\/\/la.mathworks.com\/help\/examples\/bluetooth\/win64\/BLEPositioningExample_01.png\"\/><\/figure>\n<p>4<\/p>\n<p>Bottom line:<\/p>\n<p>The transmitter has multiple antennas<br \/>Sends the signal from each antenna in a specific order<br \/>Differences in the phase of radio waves arise<br \/>The receiver measures these differences<br \/>From the phase differences, the following is calculated <strong>Angle (azimuth + often elevation)<\/strong><\/p>\n<p>This is no longer \u201esignal power.\u201d.<br \/>It's <strong>radio wave geometry<\/strong>.<\/p>\n<p>After the merger:<\/p>\n<ul class=\"wp-block-list\">\n<li>angle<\/li>\n<li>powers<\/li>\n<li>multiple pick-up points<\/li>\n<\/ul>\n<p>can be obtained <strong>location with an accuracy of 10-50 cm<\/strong>.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-co-zmienia-bluetooth-6-1\">What does Bluetooth 6.1 change?<\/h2>\n<p>Bluetooth 6.x is not \u201eanother version for audio.\u201d.<br \/>It's an evolution under:<\/p>\n<ul class=\"wp-block-list\">\n<li>location<\/li>\n<li>IoT<\/li>\n<li>low energy consumption<\/li>\n<li>signal stability<\/li>\n<\/ul>\n<p>In terms of location, the development is going:<\/p>\n<ul class=\"wp-block-list\">\n<li>better support for Direction Finding<\/li>\n<li>more stable signal frames<\/li>\n<li>work more efficiently with multiple devices<\/li>\n<li>more accurate time synchronization<\/li>\n<\/ul>\n<p>Which is to say: Bluetooth is starting to be <strong>location platform<\/strong>, not just communication.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-gdzie-to-ma-realny-sens-biznesowy\">Where does this make real business sense?<\/h2>\n<p>This is not a gadget. This is infrastructure.<\/p>\n<h3 class=\"wp-block-heading\" id=\"h-logistyka-i-magazyny\">\ud83d\udce6 Logistics and warehouses<\/h3>\n<ul class=\"wp-block-list\">\n<li>location of forklifts<\/li>\n<li>tracking of pallets and containers<\/li>\n<li>goods movement analysis<\/li>\n<li>route optimization<\/li>\n<\/ul>\n<p>Instead of:<\/p>\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u201eWhere is the palette?\u201d<\/p>\n<\/blockquote>\n<p>You have:<\/p>\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u201eIt is 2.3 meters from gate 7, zone B.\u201d<\/p>\n<\/blockquote>\n<h3 class=\"wp-block-heading\" id=\"h-szpitale\">Hospitals<\/h3>\n<ul class=\"wp-block-list\">\n<li>location of medical equipment<\/li>\n<li>monitoring of beds and carts<\/li>\n<li>Finding equipment quickly in emergencies<\/li>\n<\/ul>\n<p>Equipment search time = real operating cost.<\/p>\n<h3 class=\"wp-block-heading\" id=\"h-smart-buildings-i-biura\">Smart buildings and offices<\/h3>\n<ul class=\"wp-block-list\">\n<li>analysis of the flow of people<\/li>\n<li>space management<\/li>\n<li>security<\/li>\n<li>location of workers in danger zones<\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\" id=\"h-przemysl-i-produkcja\">Industry and manufacturing<\/h3>\n<ul class=\"wp-block-list\">\n<li>tracking of semi-finished products<\/li>\n<li>synchronization with MES<\/li>\n<li>downtime analysis<\/li>\n<li>tool location<\/li>\n<\/ul>\n<p>Bluetooth with AoD becomes a \u201eGPS inside the hall.\u201d.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-dlaczego-to-wazniejsze-niz-sie-wydaje\">Why is this more important than it seems?<\/h2>\n<p>Because localization is the missing layer of data.<\/p>\n<p>CompaNos know:<\/p>\n<ul class=\"wp-block-list\">\n<li>what they produce<\/li>\n<li>how much they sell<\/li>\n<li>what stocks they have<\/li>\n<\/ul>\n<p>But they don't know:<br \/><strong>Where exactly things are in real time<\/strong>.<\/p>\n<p>Bluetooth Direction Finding is:<\/p>\n<p>spatial data<br \/>decision carmation<br \/>less manual reporting<br \/>less waste and downtime<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-najwieksza-zmiana-mentalna\">The biggest mental change<\/h2>\n<p>Bluetooth is no longer a \u201econsumer technology.\u201d.<\/p>\n<p>It becomes:<\/p>\n<p><strong>sensory layer for the physical world<\/strong>,<br \/>connecting the space with IT systems.<\/p>\n<p>Angle of Departure is one of the cornerstones of this change, because it allows us not only to \u201cstay connected,\u201d but <strong>know where something is with operational precision<\/strong>.<\/p>\n<p>And that, in logsstics, medicine and industry, is worth more than faster-playing music on headphones.<\/p>","protected":false},"excerpt":{"rendered":"<p>Standard BLE only provided one piece of information: \u201cThe device is either close or far away.\u201d In other words, RSSI (signal strength). The problem: walls attenuate the signal, people block it, and reflections off metal amplify it. The result? A location error of 5\u20➡5 meters. Useless for industry, hospitals, or warehouses. What was needed wasn\u2019t \u201chow strong the signal is,\u201d but rather: \u201cFrom which direction is it coming \/ in which direction is it going.\u201d What is the Angle of <a href=\"https:\/\/jsoncrew.com\/en\/2025\/10\/07\/bluetooth-6-1-i-angle-of-departure-jak-dziala-precyzyjna-lokalizacja-i-jak-ja-wykorzystac-w-praktyce\/\" class=\"more-link\">\u2026<span class=\"screen-reader-text\">  Bluetooth 6.1 and Angle of Departure: How Precise Location Works and How to Use It in Practice<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":1118,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[357],"tags":[318,319,321,322,323,324,325,326,327],"brevo_track":[423],"class_list":["post-926","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","Categories-IoT-przemysl","tag-angle of departure","tag-aod","tag-bluetooth","tag-bluetooth-6-1","tag-bluetooth-6-1-z-technologsa-angle-of-departure","tag-lokalizacha-urzadzen","tag-location","tag-location-6_1","tag-location-bluetooth"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.8 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Bluetooth 6.1 angle of departure \u2013 precyzyjna location<\/title>\n<meta name=\"description\" content=\"Poznaj bluetooth 6.1 angle of departure i praktyczne zastosowania precyzyjnej lokalizacji urz\u0105dze\u0144.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jsoncrew.com\/en\/2025\/10\/07\/bluetooth-6-1-i-angle-of-departure-jak-dziala-precyzyjna-lokalizacja-i-jak-ja-wykorzystac-w-praktyce\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" 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