{"id":5955,"date":"2021-01-06T10:15:16","date_gmt":"2021-01-06T10:15:16","guid":{"rendered":"https:\/\/www.beaconzone.co.uk\/blog\/?p=5955"},"modified":"2021-01-06T10:15:17","modified_gmt":"2021-01-06T10:15:17","slug":"ibeacon-rssi-anomaly-detection-for-indoor-positioning","status":"publish","type":"post","link":"https:\/\/www.beaconzone.co.uk\/blog\/ibeacon-rssi-anomaly-detection-for-indoor-positioning\/","title":{"rendered":"iBeacon RSSI Anomaly Detection for Indoor Positioning"},"content":{"rendered":"\n<p>There&#8217;s new research on <a rel=\"noreferrer noopener\" href=\"https:\/\/www.mdpi.com\/1424-8220\/21\/1\/120\" target=\"_blank\">iBeacon Indoor Positioning Method Combined with Real-Time Anomaly Rate to Determine Weight Matrix<\/a> that uses a weighted Levenberg-Marquadt (LM) algorithm to determine the location of ibeacons.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"720\" src=\"https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconabnormalsignal-1024x720.png\" alt=\"\" class=\"wp-image-5958\" srcset=\"https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconabnormalsignal-1024x720.png 1024w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconabnormalsignal-300x211.png 300w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconabnormalsignal-768x540.png 768w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconabnormalsignal-1536x1080.png 1536w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconabnormalsignal-2048x1440.png 2048w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconabnormalsignal-1200x844.png 1200w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure><\/div>\n\n\n\n<p>The solution processes the received signal strength (RSSI) to determine anomaly rates of beacons and hence filter out abnormal signals. This helps to overcome the problems of unreliable signal strength in indoor locations due to reflections and obstacles.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"747\" src=\"https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconanomalydetection-1024x747.png\" alt=\"\" class=\"wp-image-5956\" srcset=\"https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconanomalydetection-1024x747.png 1024w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconanomalydetection-300x219.png 300w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconanomalydetection-768x560.png 768w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconanomalydetection-1536x1120.png 1536w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconanomalydetection-2048x1494.png 2048w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconanomalydetection-1200x875.png 1200w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure><\/div>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"562\" src=\"https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconeleiminatingabnormal-1024x562.png\" alt=\"\" class=\"wp-image-5957\" srcset=\"https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconeleiminatingabnormal-1024x562.png 1024w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconeleiminatingabnormal-300x165.png 300w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconeleiminatingabnormal-768x421.png 768w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconeleiminatingabnormal-1536x842.png 1536w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconeleiminatingabnormal-2048x1123.png 2048w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2021\/01\/ibeaconeleiminatingabnormal-1200x658.png 1200w\" sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure><\/div>\n\n\n\n<p>The system achieves an average positioning error of 1.5m.<\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/www.beaconzone.co.uk\/BeaconForRTLS\" target=\"_blank\">Read about Using Beacons, iBeacons for Real-time Locating Systems (RTLS)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>There&#8217;s new research on iBeacon Indoor Positioning Method Combined with Real-Time Anomaly Rate to Determine Weight Matrix that uses a weighted Levenberg-Marquadt (LM) algorithm to determine the location of ibeacons. The solution processes the received signal strength (RSSI) to determine anomaly rates of beacons and hence filter out abnormal signals. This helps to overcome the &hellip; <a href=\"https:\/\/www.beaconzone.co.uk\/blog\/ibeacon-rssi-anomaly-detection-for-indoor-positioning\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;iBeacon RSSI Anomaly Detection for Indoor Positioning&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,32,130],"tags":[],"_links":{"self":[{"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/posts\/5955"}],"collection":[{"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=5955"}],"version-history":[{"count":3,"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/posts\/5955\/revisions"}],"predecessor-version":[{"id":5961,"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/posts\/5955\/revisions\/5961"}],"wp:attachment":[{"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=5955"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=5955"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=5955"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}