{"id":20935,"date":"2021-04-22T15:50:16","date_gmt":"2021-04-22T13:50:16","guid":{"rendered":"https:\/\/wp.test-leogistics.com\/?p=20935"},"modified":"2021-04-28T08:41:21","modified_gmt":"2021-04-28T06:41:21","slug":"on-site-real-time-asset-tracking","status":"publish","type":"post","link":"https:\/\/leogistics.com\/en\/blog-en\/on-site-real-time-asset-tracking\/","title":{"rendered":"On-Site Real-Time Asset Tracking: Are You Using The Right Technology?"},"content":{"rendered":"\t\t
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The importance of real-time asset tracking beyond transportation management<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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R<\/span>eal time tracking<\/span> of assets creat<\/span>es<\/span>\u00a0transparency about the status\u00a0<\/span>of assets<\/span>\u00a0and<\/span>\u00a0their<\/span>\u00a0<\/span>location<\/span>.<\/span>\u00a0<\/span>For this reason, n<\/span>owadays<\/span>\u00a0t<\/span>he ability to track assets in a broad geographic area<\/span>\u00a0using GPS<\/span>\u00a0<\/span>has become<\/span>\u00a0key<\/span>\u00a0in logistics<\/span>\u00a0<\/span>to timely\u00a0<\/span>identify<\/span>\u00a0potential delays<\/span>\u00a0and reduce the risk of loss<\/span>.<\/span>\u00a0<\/span>This can trigger<\/span>\u00a0a prompt reaction to find the best possible solution\u00a0<\/span>in light of<\/span>\u00a0<\/span>unexpected<\/span>\u00a0delivery\u00a0<\/span>changes<\/span>\u00a0and<\/span>\u00a0allow more accurate scheduling<\/a> as well as reduce the risk of bottlenecks.\u00a0<\/span>\u00a0<\/span><\/p>\n

But what happens to these assets<\/span>,\u00a0<\/span>when<\/span>\u00a0over-the-road tracking ends\u00a0<\/span>and<\/span>\u00a0assets\u00a0<\/span>are<\/span>\u00a0yet to\u00a0<\/span>be at the end of their journey<\/span>?<\/span>\u00a0<\/span>M<\/span>anual<\/span>\u00a0<\/span>processes\u00a0<\/span>are<\/span>\u00a0typically used to track\u00a0<\/span>assets such as\u00a0<\/span>trailer<\/span>s<\/span>\u00a0and tractor<\/span>s, which<\/span>\u00a0<\/span>leave<\/span>s<\/span>\u00a0room<\/span>\u00a0to human error and a lack of real-time updates.<\/span>\u00a0<\/span>And<\/span>\u00a0this is just the tip of the iceberg.<\/span>\u00a0<\/span><\/p>\n

On-site premises<\/span><\/a>\u00a0are often quite large,\u00a0<\/span>and\u00a0<\/span>include<\/span>\u00a0large fleets of vehicles<\/span>\u00a0such as forklifts<\/span>, materials<\/span>,<\/span>\u00a0<\/span>containers<\/span>\u00a0and carts<\/span>\u00a0which are moved frequently<\/span>\u00a0<\/span>within the<\/span>\u00a0<\/span>yard<\/span>.\u00a0<\/span>M<\/span>anually tracking the movement of<\/span>\u00a0these<\/span>\u00a0assets\u00a0<\/span>can\u00a0<\/span>quickly\u00a0<\/span>become\u00a0<\/span>unmanageable<\/span>.<\/span>\u00a0<\/span><\/p>\n

An\u00a0<\/span>On-Site\u00a0<\/span>Real-Time Locating System (<\/span>RTLS<\/span>)<\/span>\u00a0eliminates the need for manual checks and brings\u00a0<\/span>close\u00a0<\/span>to zero<\/span>\u00a0both<\/span>\u00a0search time<\/span>s<\/span>\u00a0and human errors<\/span>, resulting in greater efficiency.<\/span>\u00a0<\/span>However,<\/span>\u00a0is GPS always the right solution?<\/span>\u00a0<\/span>\u00a0<\/span><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Is GPS always the right solution for real-time tracking? <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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There is\u00a0<\/span>a<\/span>\u00a0tendency to believe that what works for a<\/span>sset tracking\u00a0<\/span>in broad geographic areas would work well\u00a0<\/span>for<\/span>\u00a0smaller areas such as on-site<\/span>, too.<\/span>\u00a0<\/span><\/p>\n

However,\u00a0<\/span>GPS alone does not work well on limited areas<\/span>.\u00a0<\/span>It<\/span>\u00a0requires<\/span>\u00a0<\/span>ad-hoc\u00a0<\/span>adaptations<\/span>\u00a0<\/span>and integrations\u00a0<\/span>which means<\/span>\u00a0<\/span>extra\u00a0<\/span>work to\u00a0<\/span>fit<\/span>\u00a0the technology to the specific\u00a0<\/span>solution<\/span>.<\/span>\u00a0<\/span>As a matter of fact, since GPS is typically only accurate within several meters, a GPS signal is not able to give the accuracy\u00a0<\/span>needed\u00a0<\/span>in\u00a0<\/span>contexts such as\u00a0<\/span>yard management (e.<\/span>\u00a0<\/span>g. to know the parking<\/span>\u00a0slot<\/span>\u00a0assigned to a certain vehicle).\u00a0<\/span>\u00a0<\/span><\/p>\n

Moreover<\/span>, GPS does not work indoors<\/span>,<\/span>\u00a0inside the warehouse<\/span>, for example,<\/span>\u00a0and its performance can drop significantly even outdoor<\/span>s<\/span>\u00a0when buildings<\/span>\u00a0or other obstacles<\/span>\u00a0limit the sky visibility of the GPS antenna.<\/span>\u00a0<\/span><\/p>\n

With the introduction of the Bluetooth Direction Finding feature in\u00a0<\/span>the\u00a0<\/span>Bluetooth 5.1 Core specification,<\/span>\u00a0<\/span>Bluetooth Low Energy (BLE) represents a<\/span>\u00a0more convenient<\/span>\u00a0solution<\/span>\u00a0than GPS<\/span>\u00a0<\/span>for real time on-site asset tracking.<\/span>\u00a0<\/span><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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How Bluetooth Direction Finding works <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Bluetooth Direction Finding is designed to improve location services compared to previous versions<\/span>\u00a0of BLE<\/span>\u00a0which\u00a0<\/span>used<\/span>\u00a0solely the strength of the received signal (RSSI) to estimate the distance between tag<\/span>s (items to track)<\/span>\u00a0and locator<\/span>s\u00a0<\/span>(terminals receiving the beacon signals sent from tags)<\/span>.\u00a0<\/span>However,<\/span>\u00a0<\/span>RSSI is not a reliable parameter<\/span>,<\/span>\u00a0since it can be influenced by\u00a0<\/span>environment-dependent\u00a0<\/span>interference<\/span>s<\/span>,\u00a0<\/span>reflections<\/span>\u00a0and attenuations.<\/span><\/p>\n

In contrast,\u00a0<\/span>Bluetooth Direction Finding\u00a0<\/span>improves<\/span>\u00a0<\/span>the accuracy of BLE-based tracking<\/span>\u00a0and can be used to detect location<\/span>s<\/span>\u00a0<\/span>not only in<\/span>\u00a02D\u00a0<\/span>but also in<\/span>\u00a03D depending on the complexity of its implementation.<\/span>\u00a0<\/span>The key underlying concept<\/span>\u00a0of Bluetooth Direction Finding<\/span>\u00a0is called\u00a0<\/span>A<\/span>ngle of\u00a0<\/span>A<\/span>rrival (<\/span>AoA<\/span>). In\u00a0<\/span>AoA<\/span>, the\u00a0<\/span>position\u00a0<\/span>of an asset\u00a0<\/span>is calculated from the angular phase-shifts that occur between the antennas receiving special Bluetooth signals sent by BLE tag<\/span>s<\/span>.<\/span>\u00a0<\/span><\/p>\n

AoA<\/span>\u00a0allows for\u00a0<\/span>the\u00a0<\/span>use of\u202f<\/span>very simple\u00a0<\/span>low cost<\/span>\u00a0tags to act as the source device of which\u00a0<\/span>it is<\/span>\u00a0<\/span>desired<\/span>\u00a0<\/span>to determine\u00a0<\/span>the<\/span>\u00a0location.<\/span>\u00a0<\/span>By measuring the direction of\u00a0<\/span>the<\/span>\u00a0radio signal transmitted by a tag as seen by\u00a0<\/span>one<\/span>\u00a0or more locators, the exact location\u00a0<\/span>of assets\u00a0<\/span>can be calculated\u00a0<\/span>using<\/span>\u00a0triangulation and trilateration algorithms.<\/span>\u00a0<\/span>B<\/span>ased on the position<\/span>\u00a0data<\/span>,<\/span>\u00a0services such as geofenced zones, heat maps<\/span>, alarms and notification services can be built.<\/span>\u00a0<\/span><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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More than location tracking: IoT Gateway <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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BLE can provide better accuracy than GPS, which is crucial for\u00a0<\/span>on-site\u00a0<\/span>real-time asset tracking.\u00a0<\/span>But there is mor<\/span>e<\/span>.<\/span>\u00a0BLE is one of the leading wireless technologies in IoT<\/a>, since it<\/span>\u00a0provides the means to transmit sensor data up to hundreds of meters<\/span>\u00a0far,<\/span>\u00a0with a reduced and efficient power consumption.<\/span>\u00a0<\/span><\/p>\n

Therefore, i<\/span>n addition to\u00a0<\/span>location\u00a0<\/span>tracking,\u00a0<\/span>the same infrastructure can be used to<\/span>\u00a0monitor the condition\u00a0<\/span>of assets (e.<\/span>\u00a0<\/span>g. temperature, pressure, vibrations)<\/span>\u00a0<\/span>both when they move and when they are\u00a0<\/span>stored<\/span>.<\/span>\u00a0<\/span><\/p>\n

In other words, in their additional role as\u00a0<\/span>IoT gateways<\/span>, locators can<\/span>\u00a0collect the data from\u00a0<\/span>IoT<\/span>\u00a0sensors<\/span>\u00a0connected to the tag<\/span>\u00a0and forward this information<\/span>\u00a0contextualized by a timestamp and a location point<\/span>\u00a0to the asset\u00a0<\/span>management<\/span>\u00a0software.<\/span>\u00a0<\/span><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Initial and Operational Costs <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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One might think that all these benefits come at a<\/span>n increase in<\/span>\u00a0cost<\/span>\u00a0when comparing BLE with GPS<\/span>.\u00a0<\/span>However<\/span>, the cost of a BLE-based solution scales better than GPS as the number of assets to track increases.<\/span>\u00a0<\/span>\u00a0<\/span><\/p>\n

If the number of assets to track is small, GPS is economically more convenient because of the possibility to transmit location data using the mobile network or a similar solution not requiring an on-<\/span>site<\/span>\u00a0<\/span>infrastructure<\/span>\u00a0and thus\u00a0<\/span>having\u00a0<\/span>a lower initial cost<\/span>\u00a0(supposing the mobile signal coverage is good enough across the entire site, which is not always the case).\u00a0<\/span>\u00a0<\/span><\/p>\n

On the other hand, BLE-based tracking requires the installation of locators throughout the area to be monitored.<\/span>\u00a0<\/span>However, as the number of assets to track increases beyond several tens of units, the BLE infrastructure cost is paid back\u00a0<\/span>by the smaller cost per tag compared to a tag needing a GPS module, a mobile\u00a0<\/span>module,<\/span>\u00a0and a data plan to transmit the data<\/span>,<\/span>\u00a0which\u00a0<\/span>in the long run\u00a0<\/span>impacts\u00a0<\/span>the operational costs in a linear manner<\/span>\u00a0as the number of used tags increases<\/span>.<\/span>\u00a0<\/span>\u00a0<\/span><\/p>\n

Last but not least<\/span>,<\/span>\u00a0Bluetooth tags are as small as a\u00a0<\/span>fingerprint and\u00a0<\/span>can run on a single button cell battery\u00a0<\/span>for\u00a0<\/span>up to 20 years<\/span>, thus requiring very<\/span>\u00a0low maintenance<\/span>\u00a0compared to the battery requirements of a<\/span>\u00a0standalone<\/span>\u00a0<\/span>GPS<\/span>+mobile<\/span>\u00a0terminal<\/span>\u00a0that can run<\/span>,<\/span>\u00a0<\/span>in the best case with bulk batteries,<\/span>\u00a0for few days<\/span>.<\/span>\u00a0<\/span><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Real-time tracking via GPS vs. BLE: comparing security <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Previously<\/span>, it has been outlined that asset tracking\u00a0<\/span>data\u00a0<\/span>(and eventually additional IoT data)<\/span>\u00a0<\/span>is\u00a0<\/span>sent through a public\u00a0<\/span>mobile\u00a0<\/span>network when GPS in combination with a cellular data service is used. The alternative would be to build a\u00a0<\/span>WiFi<\/span>\u00a0or similar private infrastructure to avoid th<\/span>at<\/span>\u00a0data\u00a0<\/span>is\u00a0<\/span>exposed to the public Internet with all the related risks that could follow in case of a breach of data privacy.<\/span>\u00a0<\/span><\/p>\n

With BLE<\/span>\u00a0instead<\/span>, the locators\u00a0<\/span>are by design part of a private network and can forward gathered information to a local position engine\u00a0<\/span>in order to<\/span>\u00a0parse the assets<\/span>\u2019<\/span>\u00a0location. In addition, the same d<\/span>ata can be<\/span>\u00a0filtered,\u00a0<\/span>down<\/span>–<\/span>sampled<\/span>\u00a0or masked\u00a0<\/span>at the edge\u00a0<\/span>according to users\u2019 needs\u00a0<\/span>before they are sent<\/span>\u00a0to the cloud<\/span>.<\/span>\u00a0<\/span>This allows<\/span>\u00a0to protect<\/span>\u00a0sensitive data<\/span>\u00a0that should never leave the premises of the company<\/span>.<\/span>\u00a0<\/span><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Conclusion <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Real-time tracking of\u00a0<\/span>on-site<\/span>\u00a0assets is available now and\u00a0<\/span>some<\/span>\u00a0companies are already implementing it<\/span>\u00a0today<\/span>.<\/span>\u00a0<\/span>However, it is important to rely on experts to make sure\u00a0<\/span>the best\u00a0<\/span>possible\u00a0<\/span>technolog<\/span>y<\/span>\u00a0<\/span>for a certain application scenario\u00a0<\/span>is<\/span>\u00a0used<\/span>.<\/span>\u00a0<\/span><\/p>\n

The ideal technology should be inexpensive, accurate, secure,<\/span>\u00a0work<\/span>\u00a0over long distances, and have a substantial battery life. BLE with direction finding is the closest to encompass all these requirements<\/span>\u00a0for most of the on-site business scenarios<\/span>.<\/span>\u00a0<\/span><\/p>\n

The use of BLE for on-site asset tracking allows the use of a holistic technology<\/span>\u00a0for yard and warehouse management<\/span>.<\/span>\u00a0<\/span>T<\/span>his is convenient for those assets that\u00a0<\/span>frequently<\/span>\u00a0pass from one<\/span>\u00a0context<\/span>\u00a0to the other<\/span>\u00a0and thus need an integrated\u00a0<\/span>outdoors and indoors<\/span>\u00a0tracking solution.<\/span>\u00a0<\/span><\/p>\n

In addition, c<\/span>orporations around the world are acknowledging the importance of the Internet of Things (IoT) and the need for a solution that has the ability\u00a0<\/span>not only\u00a0<\/span>to identify and track assets\u2019 location<\/span>s<\/span>\u00a0<\/span>but also their<\/span>\u00a0status<\/span>\u00a0by means of smart sensors<\/span>.<\/span>\u00a0<\/span><\/p>\n

Make sure you use the<\/span>\u00a0latest<\/span>\u00a0and\u00a0<\/span>suitable<\/span>\u00a0technologies to implement your business cases<\/span>\u00a0more quickly and with the best possible results.<\/span>\u00a0<\/span>We<\/span>\u2019d<\/span>\u00a0be happy to<\/span>\u00a0support you in\u00a0<\/span>your asset tracking project<\/span>.<\/span>\u00a0<\/span><\/p>\n

For questions about this or other topics in the blog, contact\u00a0<\/span>blog@leogistics.com<\/span><\/a>.<\/span>\u00a0<\/span><\/p>\n

Alessio Meloni<\/span><\/i>
\nIoT Solution Architect<\/span><\/i><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\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":"

Real time tracking of assets creates transparency about the status of assets and their location. For this reason, nowadays the ability to track assets in a broad geographic area using GPS has become key in logistics to timely identify potential delays and reduce the risk of loss<\/p>\n","protected":false},"author":39,"featured_media":20941,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[226],"tags":[1392,434,431],"produkt":[],"thema":[1313,1314,1305],"class_list":["post-20935","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-en","tag-echtzeit-tracking","tag-factory-premises","tag-yard-management-en","thema-scm-en","thema-warehouse","thema-yard-en"],"acf":[],"_links":{"self":[{"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/posts\/20935","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/comments?post=20935"}],"version-history":[{"count":0,"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/posts\/20935\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/media\/20941"}],"wp:attachment":[{"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/media?parent=20935"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/categories?post=20935"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/tags?post=20935"},{"taxonomy":"produkt","embeddable":true,"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/produkt?post=20935"},{"taxonomy":"thema","embeddable":true,"href":"https:\/\/leogistics.com\/en\/wp-json\/wp\/v2\/thema?post=20935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}