{"id":3977,"date":"2019-08-22T13:18:30","date_gmt":"2019-08-22T13:18:30","guid":{"rendered":"https:\/\/www.beaconzone.co.uk\/blog\/?p=3977"},"modified":"2019-08-22T13:18:31","modified_gmt":"2019-08-22T13:18:31","slug":"bluetooth-positioning-using-separate-bluetooth-channels","status":"publish","type":"post","link":"https:\/\/www.beaconzone.co.uk\/blog\/bluetooth-positioning-using-separate-bluetooth-channels\/","title":{"rendered":"Bluetooth Positioning Using Separate Bluetooth Channels"},"content":{"rendered":"\n<p>While we wait for commercial <a rel=\"noreferrer noopener\" aria-label=\"Bluetooth 5.1 direction finding (opens in a new tab)\" href=\"https:\/\/bluetoothle.wiki\/direction_finding\" target=\"_blank\">Bluetooth 5.1 direction finding<\/a> solutions to become available, people are trying to refine traditional locating methods to gain more accuracy. Baichuan Huang, Jingbin Liu, Wei Sun and Fan Yang have a research paper on <a rel=\"noreferrer noopener\" aria-label=\"A Robust Indoor Positioning Method based on Bluetooth Low Energy with Separate Channel Information (opens in a new tab)\" href=\"https:\/\/www.mdpi.com\/1424-8220\/19\/16\/3487\/htm\" target=\"_blank\">A Robust Indoor Positioning Method based on Bluetooth Low Energy with Separate Channel Information<\/a>.<\/p>\n\n\n\n<p>They have observed that the stability of the received Bluetooth signal strength RSSI depends on which Channel 37, 38 or 39 the signal is being received on. This is because the channels slightly overlap the WiFi channels and there can be other Bluetooth devices also using the same channels.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"267\" src=\"https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2019\/08\/bluetoothwifichanneloverlap.png\" alt=\"\" class=\"wp-image-3978\" srcset=\"https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2019\/08\/bluetoothwifichanneloverlap.png 550w, https:\/\/www.beaconzone.co.uk\/blog\/wp-content\/uploads\/2019\/08\/bluetoothwifichanneloverlap-300x146.png 300w\" sizes=\"(max-width: 550px) 85vw, 550px\" \/><\/figure>\n\n\n\n<p>The method analyses the channels over time and chooses those it thinks has least interference and most stable RSSI. This reduces the positioning error by 0.2m, to 2.2m, at a distance of 3.6m.<\/p>\n\n\n\n<p>Read about <a href=\"https:\/\/www.beaconzone.co.uk\/bluetoothleposition\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Determining Location Using Bluetooth Beacons (opens in a new tab)\">Determining Location Using Bluetooth Beacons<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>While we wait for commercial Bluetooth 5.1 direction finding solutions to become available, people are trying to refine traditional locating methods to gain more accuracy. Baichuan Huang, Jingbin Liu, Wei Sun and Fan Yang have a research paper on A Robust Indoor Positioning Method based on Bluetooth Low Energy with Separate Channel Information. They have &hellip; <a href=\"https:\/\/www.beaconzone.co.uk\/blog\/bluetooth-positioning-using-separate-bluetooth-channels\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Bluetooth Positioning Using Separate Bluetooth Channels&#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":[31,32,33,130],"tags":[],"_links":{"self":[{"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/posts\/3977"}],"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=3977"}],"version-history":[{"count":3,"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/posts\/3977\/revisions"}],"predecessor-version":[{"id":4026,"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/posts\/3977\/revisions\/4026"}],"wp:attachment":[{"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=3977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=3977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.beaconzone.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=3977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}