{"id":15636,"date":"2025-06-06T03:33:22","date_gmt":"2025-06-06T03:33:22","guid":{"rendered":"https:\/\/www.lansitec.com\/?p=15636"},"modified":"2026-08-26T10:49:00","modified_gmt":"2026-08-26T02:49:00","slug":"metrolink-technical-deployment-deep-dive-building-a-scalable-underground-tracking-system","status":"publish","type":"post","link":"https:\/\/www.lansitec.com\/es\/blogs\/analisis-profundo-de-la-implementacion-tecnica-de-metrolink-construccion-de-un-sistema-de-seguimiento-subterraneo-escalable\/","title":{"rendered":"An\u00e1lisis profundo de la implementaci\u00f3n t\u00e9cnica de MetroLink: Construcci\u00f3n de un sistema de seguimiento subterr\u00e1neo escalable"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"15636\" class=\"elementor elementor-15636\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-94920ea elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"94920ea\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-39cea0a\" data-id=\"39cea0a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4746574 elementor-widget elementor-widget-text-editor\" data-id=\"4746574\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Introduction to MetroLink Technical Deployment<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cc5d8c8 elementor-widget elementor-widget-text-editor\" data-id=\"cc5d8c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Following the success of MetroLink\u2019s deployment of Lansitec\u2019s <strong><a href=\"https:\/\/www.lansitec.com\/products\/helmet-beacon\/\">B011 Helmet Beacons<\/a><\/strong> for underground worker safety, the next logical step is a technical breakdown. This part of the case study explores how MetroLink implemented a full-stack positioning infrastructure underground, relying on <strong><a href=\"https:\/\/www.bluetooth.com\/bluetooth-resources\/bluetooth-core-5-1-feature-overview\/\" target=\"_blank\" rel=\"noopener\">Bluetooth 5.1<\/a> Angle of Arrival (AoA)<\/strong> technology, <strong><a href=\"https:\/\/www.lansitec.com\/gateways\/\">macro\/solar gateways<\/a><\/strong>, and <strong>LoRaWAN-based backhaul<\/strong> to deliver a seamless, real-time location tracking system.<\/p>\n<p>\u00a0<\/p>\n<p><!-- \/wp:paragraph --><!-- wp:paragraph --><\/p>\n<p>By blending accuracy, battery efficiency, and connectivity resilience, MetroLink\u2019s system proves that Bluetooth AoA combined with <a href=\"https:\/\/www.lansitec.com\/lorawan\/\">LoRaWAN<\/a> is a powerful and scalable architecture for complex subterranean environments, including metro rail infrastructure.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2ccf6c7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2ccf6c7\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d30669b\" data-id=\"d30669b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a730fcb elementor-widget elementor-widget-text-editor\" data-id=\"a730fcb\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Core Components<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7b89e209 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7b89e209\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-37ad99b4\" data-id=\"37ad99b4\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3680ddf4 elementor-widget elementor-widget-text-editor\" data-id=\"3680ddf4\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<!-- wp:heading --><!-- \/wp:paragraph --><!-- wp:heading -->\n<h2 class=\"wp-block-heading\"><b>B011 Helmet Beacon<\/b><\/h2>\n<p>[visual-link-preview encoded=&#8221;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&#8221;]<\/p>\n<p>The B011 served as the primary wearable device, selected for its:<\/p>\n<ul>\n<li aria-level=\"1\"><b><a href=\"https:\/\/www.lansitec.com\/blogs\/guide-on-different-bluetooth-versions-1-0-to-6-0-how-each-iteration-improved\/\">Bluetooth 5.1<\/a> AoA support<\/b><\/li>\n<li aria-level=\"1\"><b>1200mAh rechargeable battery<\/b> (1-year runtime at 0.5s intervals)<\/li>\n<li aria-level=\"1\"><b>IP66 ingress protection<\/b><\/li>\n<li aria-level=\"1\">An optional <b>buzzer<\/b> for audio alerts and worker recall<\/li>\n<li aria-level=\"1\">Adjustable advertising intervals: 100ms to 10s<\/li>\n<li aria-level=\"1\">Weight: only 90g \u2014 ideal for helmet mounting<\/li>\n<\/ul>\n<p>These <a href=\"https:\/\/www.lansitec.com\/bluetooth-beacons\/\">beacons<\/a> constantly broadcast positioning packets. When received by surrounding <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a> equipped with AoA antenna arrays, they enable 2D trilateration to estimate precise location.<\/p>\n<h3><b> Macro Bluetooth Gateways (LoRaWAN)<\/b><\/h3>\n<p>[visual-link-preview encoded=&#8221;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&#8221;]<\/p>\n<p>Installed every <b>80\u2013100 meters<\/b> within the tunnels, these <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a>:<\/p>\n<ul>\n<li aria-level=\"1\">Receive BLE packets from nearby <a href=\"https:\/\/www.lansitec.com\/bluetooth-beacons\/\">beacons<\/a> (range ~100\u2013150m line-of-sight)<\/li>\n<li aria-level=\"1\">Use <b>AoA antenna arrays<\/b> to calculate signal direction<\/li>\n<li aria-level=\"1\">Relay position data to the <a href=\"https:\/\/www.lansitec.com\/lorawan\/\">LoRaWAN<\/a> server via <b>long-range uplinks<\/b><\/li>\n<li aria-level=\"1\">Feature <b>38,000mAh batteries<\/b>, providing 3\u20135 years of autonomous operation<\/li>\n<li aria-level=\"1\">Are IP66-rated and industrial-grade for underground conditions<\/li>\n<\/ul>\n<h3><b> Indoor &amp; Solar Bluetooth Gateways<\/b><\/h3>\n<p>[visual-link-preview encoded=&#8221;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&#8221;]<\/p>\n<ul>\n<li aria-level=\"1\"><b><a href=\"https:\/\/www.lansitec.com\/gateways\/\">Indoor Gateways<\/a><\/b>: Installed in technical rooms, depots, control centers (PoE-powered, ceiling mounted)<\/li>\n<li aria-level=\"1\"><b>Solar <a href=\"https:\/\/www.lansitec.com\/gateways\/\">Gateways<\/a><\/b>: Used above ground at tunnel entry points and in service yards\n<ul>\n<li aria-level=\"2\">Equipped with <b>5300mAh solar-rechargeable batteries<\/b><\/li>\n<li aria-level=\"2\">Designed for <b>continuous operation<\/b>, even in overcast conditions<\/li>\n<li aria-level=\"2\">Report via <a href=\"https:\/\/www.lansitec.com\/lorawan\/\">LoRaWAN<\/a> just like macro <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3><b> LoRaWAN Network<\/b><\/h3>\n<p>The <a href=\"https:\/\/www.lansitec.com\/lorawan\/\">LoRaWAN<\/a> infrastructure was the backbone of the communication flow:<\/p>\n<ul>\n<li aria-level=\"1\">Provided low-power, long-range uplink connectivity from all <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a><\/li>\n<li aria-level=\"1\">Encrypted with AES-128<\/li>\n<li aria-level=\"1\">Operated on the <b>AU915<\/b> band to comply with regional regulations<\/li>\n<li aria-level=\"1\">Centralized data routed to MetroLink\u2019s control system for visualization, alerts, and analytics<\/li>\n<\/ul>\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\"><strong>Bluetooth AoA Positioning: How It Works<\/strong><\/h2>\n<!-- \/wp:heading -->\n<p>Bluetooth Angle of Arrival (AoA) is the key technology behind MetroLink\u2019s precise underground worker tracking.<br \/>Here\u2019s how it operates in the field:<\/p>\n<ol>\n<li aria-level=\"1\"><b>The B011 Beacon<\/b> emits a Bluetooth signal at intervals (e.g., every 500ms).<\/li>\n<li aria-level=\"1\"><b>At least two AoA-enabled <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a><\/b> receive the signal simultaneously.<\/li>\n<li aria-level=\"1\">Each gateway calculates the <b>angle<\/b> from which the signal arrived using its antenna array.<\/li>\n<li aria-level=\"1\">The system triangulates the beacon\u2019s position by overlaying angles from multiple <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a>.<\/li>\n<li aria-level=\"1\">The position is sent via <a href=\"https:\/\/www.lansitec.com\/lorawan\/\">LoRaWAN<\/a> to the control center.<\/li>\n<\/ol>\n<p><b>Positioning Accuracy Achieved:<\/b><\/p>\n<ul>\n<li aria-level=\"1\">Average: <b>1.5\u20133 meters<\/b><\/li>\n<li aria-level=\"1\">In optimal tunnel geometry: up to <b>1 meter<\/b><\/li>\n<li aria-level=\"1\">In congested areas (e.g., junctions): ~3.5 meters due to signal reflection<\/li>\n<\/ul>\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\"><strong>Deployment Planning<\/strong><\/h2>\n<!-- \/wp:heading -->\n<h3><b>Signal Survey &amp; Coverage Mapping<\/b><\/h3>\n<p>Before full rollout, MetroLink\u2019s tech team conducted a tunnel-wide <b>RF survey<\/b> using demo <a href=\"https:\/\/www.lansitec.com\/bluetooth-beacons\/\">beacons<\/a> and signal sniffers to:<\/p>\n<ul>\n<li aria-level=\"1\">Identify high-reflection zones (metal grates, curved walls)<\/li>\n<li aria-level=\"1\">Optimize gateway spacing (tighter in curves\/intersections)<\/li>\n<li aria-level=\"1\">Ensure <b>redundancy<\/b> (3 <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a> per zone for triangulation)<\/li>\n<\/ul>\n<p><b>Typical Gateway Layout:<\/b><\/p>\n<ul>\n<li aria-level=\"1\">Straight Tunnels: 1 per 80\u2013100 meters<\/li>\n<li aria-level=\"1\">Junction Zones: 3 in a triangle pattern every 50 meters<\/li>\n<li aria-level=\"1\">Emergency Escape Shafts: 1 Solar Gateway at surface<\/li>\n<\/ul>\n<h3><b>Deployment Phases<\/b><\/h3>\n<p><b>Phase 1: Central Loop Pilot<\/b><\/p>\n<ul>\n<li aria-level=\"1\">12-km test section<\/li>\n<li aria-level=\"1\">50 <a href=\"https:\/\/www.lansitec.com\/bluetooth-beacons\/\">beacons<\/a> issued to field techs<\/li>\n<li aria-level=\"1\">40 macro <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a> deployed<\/li>\n<li aria-level=\"1\">Solar units tested at 3 surface portals<\/li>\n<\/ul>\n<p><b>Results:<\/b><\/p>\n<ul>\n<li aria-level=\"1\">95% location coverage<\/li>\n<li aria-level=\"1\">3m accuracy median<\/li>\n<li aria-level=\"1\">The fall detection pilot was tested with positive feedback<\/li>\n<\/ul>\n<p><b>Phase 2: Network-Wide Rollout<\/b><\/p>\n<ul>\n<li aria-level=\"1\">400 Helmet <a href=\"https:\/\/www.lansitec.com\/bluetooth-beacons\/\">Beacons<\/a> issued<\/li>\n<li aria-level=\"1\">325 Macro <a href=\"https:\/\/www.lansitec.com\/gateways\/\">Gateways<\/a> installed<\/li>\n<li aria-level=\"1\">45 <a href=\"https:\/\/www.lansitec.com\/gateways\/\">Indoor Gateways<\/a> placed in stations and hubs<\/li>\n<li aria-level=\"1\">30 Solar <a href=\"https:\/\/www.lansitec.com\/gateways\/\">Gateways<\/a> for external access zones<\/li>\n<\/ul>\n<h3><b>Data Flow &amp; Platform Integration<\/b><\/h3>\n<ol>\n<li aria-level=\"1\"><b>Beacon Transmits \u2192 Gateway Receives (AoA)<\/b><\/li>\n<li aria-level=\"1\">Gateway calculates the location and encrypts the payload<\/li>\n<li aria-level=\"1\"><b><a href=\"https:\/\/www.lansitec.com\/lorawan\/\">LoRaWAN<\/a> Gateway Uplink<\/b>\n<ul>\n<li aria-level=\"2\">Range: 1.5\u20132km even in an urban environment<\/li>\n<li aria-level=\"2\">Uplink rate: 1 location packet every 5 seconds (configurable)<\/li>\n<\/ul>\n<\/li>\n<li aria-level=\"1\">The central server receives and decodes the payload<\/li>\n<li aria-level=\"1\">Control room operators&#8217; view:\n<ul>\n<li aria-level=\"2\">Live map of personnel<\/li>\n<li aria-level=\"2\">Geofence status<\/li>\n<li aria-level=\"2\">Alerts (fall, SOS, zone violations)<\/li>\n<li aria-level=\"2\">Equipment location (via Container <a href=\"https:\/\/www.lansitec.com\/trackers\/\">Trackers<\/a>)<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>Data was fed into MetroLink\u2019s SCADA-compatible dashboard via API bridge.<\/p>\n<h3><b>Key Challenges and Solutions<\/b><\/h3>\n<table>\n<thead>\n<tr>\n<th>\n<p><b>Challenge<\/b><\/p>\n<\/th>\n<th>\n<p><b>Resolution<\/b><\/p>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\n<p>Signal reflection in tight tunnels<\/p>\n<\/td>\n<td>\n<p>Extra gateway density + adaptive triangulation<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Battery access for ceiling-mounted units<\/p>\n<\/td>\n<td>\n<p>All devices selected with <b>3\u20135 year batteries<\/b><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Worker adoption<\/p>\n<\/td>\n<td>\n<p>Simple plug-and-play design; no UX learning<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Beacon collision at high density<\/p>\n<\/td>\n<td>\n<p>Staggered advertising intervals by location<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><b>System Security and Resilience<\/b><\/h3>\n<ul>\n<li aria-level=\"1\"><b>Encryption<\/b>: AES-128 on both Bluetooth and <a href=\"https:\/\/www.lansitec.com\/lorawan\/\">LoRaWAN<\/a> layers<\/li>\n<li aria-level=\"1\"><b>Fail-safes<\/b>:\n<ul>\n<li aria-level=\"2\">Local caching: <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a> store 40 recent positions if the connection fails<\/li>\n<li aria-level=\"2\">SOS button functionality even during temporary uplink outages<\/li>\n<li aria-level=\"2\"><b><a href=\"https:\/\/www.lansitec.com\/blogs\/fota-at-scale-how-to-keep-1000-devices-on-the-same-firmware-without-site-visits\/\">FOTA<\/a><\/b> (Firmware Over-the-Air): Supported on <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a> and <a href=\"https:\/\/www.lansitec.com\/bluetooth-beacons\/\">beacons<\/a> for remote updates<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\"><strong>Lessons Learned<\/strong><\/h2>\n<!-- \/wp:heading -->\n<p><b>Fine-Tuning AoA Algorithms<\/b><\/p>\n<p>MetroLink collaborated with Lansitec\u2019s engineers to:<\/p>\n<ul>\n<li aria-level=\"1\">Calibrate antennas for tunnel curvature<\/li>\n<li aria-level=\"1\">Tune algorithms to compensate for bounce interference<\/li>\n<li aria-level=\"1\">Use <b>filtered <a href=\"https:\/\/www.lansitec.com\/blogs\/rssi-indoor-positioning\/\">RSSI<\/a> + AoA<\/b> fusion for edge accuracy<\/li>\n<\/ul>\n<p><b>Infrastructure Redundancy is Non-Negotiable<\/b><\/p>\n<p>Dual-layer coverage (AoA + fallback zone triangulation) ensured worker positions could be resolved even with a failed node.<\/p>\n<p><b>Gateway Battery Planning Matters<\/b><\/p>\n<p>Macro <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a> required <b>less frequent servicing<\/b>, but battery modeling was essential, including temperature-based drain rate simulations.<\/p>\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\"><strong>Future Expansion: Technical Plans<\/strong><\/h2>\n<!-- \/wp:heading -->\n<p>MetroLink\u2019s roadmap includes:<\/p>\n<ul>\n<li aria-level=\"1\"><b>Edge AI modules<\/b> at <a href=\"https:\/\/www.lansitec.com\/gateways\/\">gateways<\/a> for local anomaly detection<\/li>\n<li aria-level=\"1\"><b>Temperature <a href=\"https:\/\/www.lansitec.com\/sensors\/\">sensors<\/a><\/b> in <a href=\"https:\/\/www.lansitec.com\/bluetooth-beacons\/\">beacons<\/a> for fire safety alerting<\/li>\n<li aria-level=\"1\"><b>Zone-specific alerts<\/b> via buzzer feedback (e.g., entering hazard zones)<\/li>\n<li aria-level=\"1\"><b>Contractor Beacon Pooling<\/b>: a temporary beacon issuance system with expiration protocols<\/li>\n<\/ul>\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h2>\n<!-- \/wp:heading -->\n<p>The technical success of MetroLink\u2019s Bluetooth AoA tracking deployment lies in <b>planning, device synergy, and operational realism<\/b>. By combining Lansitec\u2019s <b>B011 Helmet <a href=\"https:\/\/www.lansitec.com\/bluetooth-beacons\/\">Beacons<\/a><\/b>, <b>Macro <a href=\"https:\/\/www.lansitec.com\/gateways\/\">Gateways<\/a><\/b>, <b>Solar units<\/b>, and <b><a href=\"https:\/\/www.lansitec.com\/lorawan\/\">LoRaWAN<\/a> connectivity<\/b>, the authority achieved a system that is not only precise but rugged, autonomous, and scalable.<\/p>\n<p>In today\u2019s metro infrastructure, safety is no longer a manual task. It&#8217;s <b>engineered, wireless, and always-on<\/b>.<\/p>\n<!-- wp:visual-link-preview\/link {\"image_id\":-1,\"type\":\"external\",\"url\":\"https:\/\/www.lansitec.com\/blogs\/improving-metro-safety-and-efficiency-with-real-time-tracking-the-metrolink-lansitec-partnership\/\",\"nofollow\":true,\"new_tab\":true,\"encoded\":\"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\"} -->\n<div class=\"wp-block-visual-link-preview-link\"><img decoding=\"async\" class=\"vlp-image\" src=\"https:\/\/www.lansitec.com\/wp-content\/uploads\/2025\/06\/Improving-Metro-Safety-and-Efficiency-with-Real-Time-Tracking.jpg\" alt=\"\" title=\"\">\n<h3>Improving Metro Safety and Efficiency with Real-Time Tracking: The MetroLink \u2013 Lansitec Partnership &#8211; Lansitec<\/h3>\n<div class=\"summary\">For MetroLink Operations, a mid-sized Australian metro transit operator, this challenge became urgent: with over 400 workers managing more than 75 kilometers<\/div>\n<\/div>\n<!-- \/wp:visual-link-preview\/link --><!-- wp:paragraph -->\n<p>\u00a0<\/p>\n<!-- \/wp:paragraph -->\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Introducci\u00f3n a la Implementaci\u00f3n T\u00e9cnica de MetroLink. Tras el \u00e9xito de la implementaci\u00f3n de las balizas para casco B011 de Lansitec por parte de MetroLink para la seguridad de los trabajadores subterr\u00e1neos, el siguiente paso l\u00f3gico es una aver\u00eda t\u00e9cnica. Esta parte del caso pr\u00e1ctico explora c\u00f3mo MetroLink implement\u00f3 una infraestructura de posicionamiento integral subterr\u00e1nea, basada en la tecnolog\u00eda Bluetooth 5.1 de \u00e1ngulo de llegada (AoA), puertas de enlace macro\/solares y\u2026&nbsp;<a href=\"https:\/\/www.lansitec.com\/es\/blogs\/analisis-profundo-de-la-implementacion-tecnica-de-metrolink-construccion-de-un-sistema-de-seguimiento-subterraneo-escalable\/\" rel=\"bookmark\">Leer m\u00e1s \u00bb<span class=\"screen-reader-text\">An\u00e1lisis profundo de la implementaci\u00f3n t\u00e9cnica de MetroLink: Construcci\u00f3n de un sistema de seguimiento subterr\u00e1neo escalable<\/span><\/a><\/p>","protected":false},"author":12,"featured_media":15669,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[89],"tags":[],"class_list":["post-15636","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iot-case-studies"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.lansitec.com\/es\/wp-json\/wp\/v2\/posts\/15636","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lansitec.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lansitec.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lansitec.com\/es\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lansitec.com\/es\/wp-json\/wp\/v2\/comments?post=15636"}],"version-history":[{"count":1,"href":"https:\/\/www.lansitec.com\/es\/wp-json\/wp\/v2\/posts\/15636\/revisions"}],"predecessor-version":[{"id":19014,"href":"https:\/\/www.lansitec.com\/es\/wp-json\/wp\/v2\/posts\/15636\/revisions\/19014"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lansitec.com\/es\/wp-json\/wp\/v2\/media\/15669"}],"wp:attachment":[{"href":"https:\/\/www.lansitec.com\/es\/wp-json\/wp\/v2\/media?parent=15636"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lansitec.com\/es\/wp-json\/wp\/v2\/categories?post=15636"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lansitec.com\/es\/wp-json\/wp\/v2\/tags?post=15636"}],"curies":[{"name":"gracias","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}