{"id":88853,"date":"2020-03-06T12:20:03","date_gmt":"2020-03-06T11:20:03","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/bluetooth-jak-to-dziala\/"},"modified":"2024-09-12T11:07:38","modified_gmt":"2024-09-12T09:07:38","slug":"bluetooth-jak-to-funguje","status":"publish","type":"post","link":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/","title":{"rendered":"Bluetooth &#8211; Jak to funguje?"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u010cas \u010dten\u00ed:<\/span> <span class=\"rt-time\"> 8<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span>\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"88853\" class=\"elementor elementor-88853 elementor-2469\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7050f651 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7050f651\" data-element_type=\"section\" data-e-type=\"section\">\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-6fd4ae3d\" data-id=\"6fd4ae3d\" 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-435ea9df elementor-widget elementor-widget-text-editor\" data-id=\"435ea9df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\n<p>\n<strong>Komunika\u010dn\u00ed technologie Bluetooth<\/strong> je celosv\u011btov\u00fd <strong>standard pro bezdr\u00e1tov\u00fd p\u0159enos dat na kr\u00e1tkou vzd\u00e1lenost<\/strong>. Takov\u00e9 moduly pro p\u0159ipojen\u00ed se pou\u017e\u00edvaj\u00ed nap\u0159\u00edklad v mobiln\u00edch telefonech, n\u00e1hlavn\u00edch souprav\u00e1ch a hands-free sad\u00e1ch, tabletech, modemech, automobilech, ukazovac\u00edch za\u0159\u00edzen\u00edch (nap\u0159\u00edklad my\u0161 nebo po\u010d\u00edta\u010dov\u00e1 kl\u00e1vesnice) nebo bezdr\u00e1tov\u00fdch reproduktorech a v mnoha dal\u0161\u00edch za\u0159\u00edzen\u00edch.  <\/p>\n<figure id=\"attachment_3222\" aria-describedby=\"caption-attachment-3222\" style=\"width: 2400px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-3222\" src=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2020\/01\/bluetooth-jak-to-dzia%C5%82a_przyk%C5%82ady-modu%C5%82%C3%B3w.jpg\" alt=\"\" width=\"2400\" height=\"400\"><figcaption id=\"caption-attachment-3222\" class=\"wp-caption-text\">P\u0159\u00edklady modul\u016f Bluetooth<\/figcaption><\/figure>\n\n\n\n<h2>Bluetooth &#8211; co to je?<\/h2>\n\n\n<p>\n<strong>Modul Bluetooth<\/strong>, se kter\u00fdm se \u010dasto setk\u00e1v\u00e1me v obchodech s elektronick\u00fdmi sou\u010d\u00e1stkami, je mal\u00e1 sou\u010d\u00e1stka (integrovan\u00fd obvod na desce plo\u0161n\u00fdch spoj\u016f s p\u0159\u00edslu\u0161n\u00fdmi v\u00fdvody), <strong>kter\u00e1 funguje jako vys\u00edla\u010d a p\u0159ij\u00edma\u010d<\/strong>. Po spr\u00e1vn\u00e9m p\u0159ipojen\u00ed k za\u0159\u00edzen\u00ed <strong>zaji\u0161\u0165uje obousm\u011brnou komunikaci s jin\u00fdm modulem Bluetooth<\/strong>. Umo\u017e\u0148uje p\u0159en\u00e1\u0161et data ze za\u0159\u00edzen\u00ed do za\u0159\u00edzen\u00ed na kr\u00e1tk\u00e9 vzd\u00e1lenosti (ale bez kabelu) ob\u011bma sm\u011bry. Tento typ za\u0159\u00edzen\u00ed se dnes nach\u00e1z\u00ed ve v\u011bt\u0161in\u011b vyr\u00e1b\u011bn\u00fdch mobiln\u00edch telefon\u016f (smartphon\u016f), notebook\u016f a mnoha dal\u0161\u00edch za\u0159\u00edzen\u00edch. Standard Bluetooth se pou\u017e\u00edv\u00e1 nap\u0159\u00edklad k p\u0159enosu multimedi\u00e1ln\u00edch soubor\u016f z telefonu do po\u010d\u00edta\u010de, ke komunikaci se sadou hands-free v automobilu, s bezdr\u00e1tov\u00fdmi sluch\u00e1tky nebo k propojen\u00ed po\u010d\u00edta\u010de s my\u0161\u00ed \u010di kl\u00e1vesnic\u00ed. <strong>Dosah Bluetooth<\/strong> je obvykle <strong>od n\u011bkolika metr\u016f do p\u0159ibli\u017en\u011b 100 metr\u016f<\/strong> (v p\u0159\u00edm\u00e9m sm\u011bru bez p\u0159ek\u00e1\u017eek br\u00e1n\u00edc\u00edch p\u0159\u00edjmu sign\u00e1lu). Dosah se m\u016f\u017ee li\u0161it v z\u00e1vislosti na v\u00fdkonu vys\u00edla\u010de a p\u0159ij\u00edma\u010de, p\u0159ek\u00e1\u017ek\u00e1ch, kter\u00e9 se mezi nimi vyskytuj\u00ed, nebo jin\u00e9m ru\u0161en\u00ed. V byt\u011b nebo jin\u00fdch komer\u010dn\u00edch budov\u00e1ch je takov\u00fd dosah obvykle do 10 m. Mohlo by se zd\u00e1t, \u017ee relativn\u011b mal\u00fd dosah je nev\u00fdhodou tohoto komunika\u010dn\u00edho standardu, ale ve skute\u010dnosti je to prost\u011b vlastnost tohoto \u00fasp\u011b\u0161n\u011b vyu\u017e\u00edvan\u00e9ho \u0159e\u0161en\u00ed. Takov\u00e9 moduly se pou\u017e\u00edvaj\u00ed pouze v za\u0159\u00edzen\u00edch, jejich\u017e funkce podporuj\u00edc\u00ed Bluetooth nevy\u017eaduj\u00ed st\u00e1l\u00e9 bezdr\u00e1tov\u00e9 spojen\u00ed na v\u011bt\u0161\u00ed vzd\u00e1lenosti. Nap\u0159\u00edklad bezdr\u00e1tov\u00e1 sluch\u00e1tka jsou navr\u017eena tak, aby odpadla kabel\u00e1\u017e mezi kabelkou, kapsou kalhot nebo batohem a u\u0161ima poslucha\u010de. D\u00edky kr\u00e1tk\u00e9mu dosahu se nebudou vz\u00e1jemn\u011b ru\u0161it ani v m\u00edstech, kde bude kumulace za\u0159\u00edzen\u00ed Bluetooth vysok\u00e1. V automobilech, kde je p\u0159ipojen\u00ed Bluetooth nav\u00e1z\u00e1no automaticky, se tak\u00e9 p\u0159i opu\u0161t\u011bn\u00ed kabiny automaticky p\u0159eru\u0161\u00ed &#8211; pr\u00e1v\u011b kv\u016fli n\u00edzk\u00e9 \u00farovni p\u0159ipojen\u00ed.            <\/p>\n<h2>Co je elektromagnetick\u00e1 vlna?<\/h2>\n\n\n<p> Abychom pochopili, jak Bluetooth funguje, je dobr\u00e9 v\u011bd\u011bt, jak v\u00edcem\u00e9n\u011b funguj\u00ed r\u00e1dia. <\/p>\n<p> Bluetooth je technologie p\u0159enosu dat, kter\u00e1 funguje na podobn\u00e9m principu jako r\u00e1dio. Vyu\u017e\u00edv\u00e1 <strong>elektromagnetick\u00e9 z\u00e1\u0159en\u00ed,<\/strong> p\u0159esn\u011bji jeho variantu, kterou jsou <strong>r\u00e1diov\u00e9 vlny<\/strong>. Dne\u0161n\u00ed v\u011bda dosp\u011bla k pozn\u00e1n\u00ed, \u017ee elektromagnetick\u00e1 interakce je jednou ze \u010dty\u0159 z\u00e1kladn\u00edch interakc\u00ed v p\u0159\u00edrod\u011b. Pro technologii Bluetooth byly vybr\u00e1ny frekvence, na kter\u00fdch v\u011bt\u0161ina ostatn\u00edch za\u0159\u00edzen\u00ed nepracuje. Elektromagnetick\u00e9 vlny n\u00e1s obklopuj\u00ed od nepam\u011bti &#8211; d\u00edky nim funguj\u00ed za\u0159\u00edzen\u00ed, jako jsou mikrovlnn\u00e9 trouby nebo mobiln\u00ed telefony, ale je t\u0159eba si tak\u00e9 uv\u011bdomit, \u017ee nap\u0159\u00edklad sv\u011btlo je elektromagnetick\u00e9 vln\u011bn\u00ed. Je to prost\u011b vlna o d\u00e9lce, kter\u00e1 je viditeln\u00e1 lidsk\u00fdm zrakem. Viditeln\u00e9 sv\u011btlo je elektromagnetick\u00e9 z\u00e1\u0159en\u00ed s vlnovou d\u00e9lkou v rozsahu od 4\u00d710-7 m do p\u0159ibli\u017en\u011b 7\u00d710-7 m (400 nm &#8211; 700 nm). R\u00e1diov\u00e9 vlny jsou elektromagnetick\u00e9 vlny s vlnovou d\u00e9lkou v\u011bt\u0161\u00ed ne\u017e 10-4 m (0,1 mm) s frekvenc\u00ed od 3 kHz do 3 THz. V p\u0159\u00edpad\u011b <strong>Bluetooth je sledov\u00e1na provozn\u00ed frekvence v p\u00e1smu 2,4 GHz.<\/strong> D\u0159\u00edve se jednalo o r\u00e1diov\u00e9 p\u00e1smo ur\u010den\u00e9 pouze pro pr\u016fmyslov\u00e9, l\u00e9ka\u0159sk\u00e9 a v\u011bdeck\u00e9 aplikace. R\u00e1diov\u00e9 vys\u00edla\u010de i vys\u00edla\u010de Bluetooth jsou zalo\u017eeny na podobn\u00e9m principu. Kdy\u017e je na ant\u00e9nu p\u0159ivedeno nap\u00e1jen\u00ed, za\u010dnou se v n\u00ed pohybovat elektrony, kter\u00e9 v okol\u00ed ant\u00e9ny vytv\u00e1\u0159ej\u00ed elektromagnetick\u00e9 pole. Pokud je v t\u00e9to oblasti um\u00edst\u011bna ant\u00e9na, elektromagnetick\u00e9 pole zp\u016fsob\u00ed, \u017ee takov\u00fd proud (sign\u00e1l) pote\u010de i skrze ni. Vhodnou modulac\u00ed generovan\u00e9 vlny (zm\u011bnou amplitudy nebo frekvence) lze p\u0159en\u00e1\u0161et informace &#8211; sign\u00e1l s ulo\u017eenou informac\u00ed.             <\/p>\n<h2>Jak Bluetooth vyu\u017e\u00edv\u00e1 elektromagnetick\u00e9 vlny?<\/h2>\n\n\n<p> Moduly Bluetooth jsou za\u0159\u00edzen\u00ed, jejich\u017e prost\u0159ednictv\u00edm m\u016f\u017ee u\u017eivatel vys\u00edlat a p\u0159ij\u00edmat data. <strong>Funguj\u00ed jako p\u0159ij\u00edma\u010de i vys\u00edla\u010de sign\u00e1lu.<\/strong> Umo\u017e\u0148uj\u00ed jednosm\u011brnou komunikaci (jako vys\u00edla\u010dka &#8211; kdy\u017e jedno za\u0159\u00edzen\u00ed vys\u00edl\u00e1, nem\u016f\u017ee p\u0159ij\u00edmat a naopak) a obousm\u011brnou komunikaci (za\u0159\u00edzen\u00ed m\u016f\u017ee p\u0159ij\u00edmat a vys\u00edlat sou\u010dasn\u011b &#8211; jako telefonn\u00ed hovor). B\u011bhem jednoho datov\u00e9ho p\u0159enosu pou\u017e\u00edvaj\u00ed za\u0159\u00edzen\u00ed des\u00edtky frekvenc\u00ed. P\u0159i p\u0159ipojen\u00ed k jin\u00e9mu za\u0159\u00edzen\u00ed vytv\u00e1\u0159ej\u00ed samostatnou, jedine\u010dnou s\u00ed\u0165, ur\u010denou pouze pro pot\u0159eby obou za\u0159\u00edzen\u00ed. P\u0159i nov\u00e9m p\u0159ipojen\u00ed dal\u0161\u00edch modul\u016f na stejn\u00e9m m\u00edst\u011b se vytvo\u0159\u00ed druh\u00e1 s\u00ed\u0165. Takov\u00e9 minis\u00edt\u011b se naz\u00fdvaj\u00ed tzv. <strong><em>pikonety<\/em><\/strong>. Za\u0159\u00edzen\u00ed p\u0159i spojen\u00ed velmi vysokou rychlost\u00ed prov\u00e1d\u011bj\u00ed synchronn\u00ed skoky mezi frekvencemi. Za jednu minutu provedou a\u017e 100 000 skok\u016f. Informace (nap\u0159\u00edklad soubory) s velkou kapacitou jsou rozd\u011bleny a n\u00e1sledn\u011b p\u0159en\u00e1\u0161eny po velmi mal\u00fdch \u010d\u00e1stech. B\u011bhem p\u0159enosu m\u016f\u017ee v jedn\u00e9 oblasti pracovat sou\u010dasn\u011b mnoho pikos\u00edt\u00ed (minis\u00edt\u00ed). Vznik\u00e1 pak riziko, \u017ee dv\u011b s\u00edt\u011b naraz\u00ed na stejnou frekvenci ve stejnou dobu &#8211; pravd\u011bpodobnost, \u017ee se tak stane, je velmi mal\u00e1, ale pokud by se tak pravd\u011bpodobn\u011b stalo, nic by se nestalo. Ru\u0161en\u00ed by bylo tak kr\u00e1tk\u00e9, \u017ee by nemohlo nijak v\u00fdznamn\u011b ovlivnit p\u0159enosov\u00e9 \u010dasy. Aby s\u00edt\u011b fungovaly co nejl\u00e9pe (bez ru\u0161en\u00ed), m\u016f\u017ee b\u00fdt k jedn\u00e9 p\u0159ipojeno maxim\u00e1ln\u011b sedm dal\u0161\u00edch za\u0159\u00edzen\u00ed. Kdy\u017e je za\u0159\u00edzen\u00ed s modulem Bluetooth zapnuto, vy\u0161le sign\u00e1l v r\u00e1mci p\u0159idru\u017een\u00e9 pikos\u00edt\u011b. Ostatn\u00ed moduly p\u0159idru\u017een\u00e9 k s\u00edti sign\u00e1l okam\u017eit\u011b zachyt\u00ed a odpov\u00ed &#8211; nen\u00ed t\u0159eba je aktivovat. Na tomto principu funguj\u00ed nap\u0159\u00edklad vestav\u011bn\u00e9 hands-free syst\u00e9my v nov\u00fdch automobilech. Po nastoupen\u00ed do vozu a jeho spu\u0161t\u011bn\u00ed v\u016fz automaticky zjist\u00ed p\u0159\u00edtomnost p\u0159ipojen\u00e9ho modulu Bluetooth v telefonu vlo\u017een\u00e9m do kapsy a p\u0159ipoj\u00ed se k n\u011bmu, tak\u017ee \u0159idi\u010d pak m\u016f\u017ee za j\u00edzdy bezpe\u010dn\u011b telefonovat. P\u0159i opu\u0161t\u011bn\u00ed vozidla se za\u0159\u00edzen\u00ed po ztr\u00e1t\u011b dosahu okam\u017eit\u011b odpoj\u00ed.                 <\/p>\n<h2>V\u00fdhody standardu Bluetooth<\/h2>\n\n\n<p> Hlavn\u00ed a pravd\u011bpodobn\u011b nejd\u016fle\u017eit\u011bj\u0161\u00ed v\u00fdhodou standardu Bluetooth je krom\u011b absence kabel\u016f <strong>n\u00edzk\u00e1 spot\u0159eba energie<\/strong>. Proto se tak\u00e9 vyzna\u010duje n\u00edzk\u00fdm dosahem. Kr\u00e1tk\u00fd dosah umo\u017e\u0148uje spot\u0159ebovat k p\u0159enosu velmi m\u00e1lo energie. To m\u00e1 zase pozitivn\u00ed vliv na n\u00e1klady na spot\u0159ebu energie, kter\u00e9 jsou velmi d\u016fle\u017eit\u00e9 zejm\u00e9na pro mobiln\u00ed za\u0159\u00edzen\u00ed. Proto se telefony pomoc\u00ed tohoto standardu p\u0159ipojuj\u00ed k p\u0159enosn\u00fdm reproduktor\u016fm nebo sluch\u00e1tk\u016fm. Pro ob\u011b za\u0159\u00edzen\u00ed je vysokou prioritou spot\u0159ebovat co nejm\u00e9n\u011b energie a z\u00e1rove\u0148 plnit dan\u00fd \u00fakol v co nejlep\u0161\u00ed kvalit\u011b (kde je jedn\u00edm z ovliv\u0148uj\u00edc\u00edch krit\u00e9ri\u00ed rychlost p\u0159enosu). To je jeden z d\u016fvod\u016f, pro\u010d se technologie Bluetooth pou\u017e\u00edv\u00e1 k propojen\u00ed mal\u00fdch dokovac\u00edch sluch\u00e1tek (kter\u00e1, aby byla pro z\u00e1kazn\u00edky atraktivn\u00ed, by m\u011bla fungovat n\u011bkolik hodin na jedno nabit\u00ed) a telefonu (kter\u00fd sou\u010dasn\u011b d\u00e1vkuje opera\u010dn\u00ed syst\u00e9m, displej, software pro p\u0159ehr\u00e1v\u00e1n\u00ed hudby, neust\u00e1l\u00e9 p\u0159ipojen\u00ed k s\u00edti GSM a nej\u010dast\u011bji tak\u00e9 mnoho program\u016f b\u011b\u017e\u00edc\u00edch na pozad\u00ed).       <\/p>\n<h2>Dosah Bluetooth &#8211;<strong> do kolika metr\u016f funguje Bluetooth<\/strong>? <\/h2>\n\n\n<p> Kr\u00e1tk\u00fd dosah Bluetooth je jeho z\u0159ejmou vlastnost\u00ed, o kter\u00e9 si m\u016f\u017eete p\u0159e\u010d\u00edst v\u00fd\u0161e. Stoj\u00ed v\u0161ak za zm\u00ednku, \u017ee v z\u00e1vislosti na za\u0159\u00edzen\u00ed existuje jedna ze t\u0159\u00ed t\u0159\u00edd, na kter\u00fdch bude z\u00e1viset. Dosah je d\u00e1n mno\u017estv\u00edm pou\u017eit\u00e9ho v\u00fdkonu &#8211; <strong>prvn\u00ed t\u0159\u00edda <\/strong>poskytuje dosah <strong> a\u017e 100 metr\u016f,<\/strong> p\u0159i\u010dem\u017e k p\u0159enosu se pou\u017e\u00edv\u00e1 v\u00fdkon 100 mW. <strong>Jak\u00fd je dosah Bluetooth druh\u00e9 t\u0159\u00eddy? <\/strong>Tato verze, kter\u00e1 se pou\u017e\u00edv\u00e1 nej\u010dast\u011bji, umo\u017e\u0148uje spojen\u00ed se za\u0159\u00edzen\u00edmi vzd\u00e1len\u00fdmi <strong>a\u017e 10 metr\u016f<\/strong> &#8211; v t\u00e9to konfiguraci je v\u00fdkon pot\u0159ebn\u00fd k vytvo\u0159en\u00ed sign\u00e1lu ji\u017e 2,5 mW. Velmi z\u0159\u00eddka a ve v\u00fdjime\u010dn\u00fdch p\u0159\u00edpadech se pou\u017e\u00edv\u00e1 <strong>t\u0159et\u00ed t\u0159\u00edda<\/strong> &#8211; za\u0159\u00edzen\u00ed p\u0159ipojen\u00e1 prost\u0159ednictv\u00edm standardu Bluetooth mohou b\u00fdt od sebe <strong>vzd\u00e1lena jeden metr<\/strong>, ale pak je v\u00fdhodou pouze 1 mW v\u00fdkonu pot\u0159ebn\u00e9ho ke generov\u00e1n\u00ed sign\u00e1lu. Co kdy\u017e n\u00e1m ale takov\u00e9 vzd\u00e1lenosti nevyhovuj\u00ed? <strong>Jak prodlou\u017eit dosah Bluetooth<\/strong>? K tomuto \u00fa\u010delu se pou\u017e\u00edvaj\u00ed speci\u00e1ln\u00ed sm\u011brov\u00e9 ant\u00e9ny, kter\u00e9 si s t\u00edmto probl\u00e9mem skv\u011ble porad\u00ed.      <\/p>\n<h2><strong>Verze Bluetooth<\/strong> &#8211; standardy <\/h2>\n\n\n<p> Ka\u017ed\u00e1 technologie, kter\u00e1 se stane \u00fasp\u011b\u0161nou a obl\u00edbenou u u\u017eivatel\u016f, je pozd\u011bji vylep\u0161ov\u00e1na a aktualizov\u00e1na. To lze pozorovat v mnoha p\u0159\u00edpadech &#8211; dobr\u00fdm p\u0159\u00edkladem je po\u010d\u00edta\u010dov\u00fd konektor USB, kter\u00fd dnes najdeme t\u00e9m\u011b\u0159 v ka\u017ed\u00e9m modern\u00edm za\u0159\u00edzen\u00ed. V sou\u010dasn\u00e9 dob\u011b se nej\u010dast\u011bji pou\u017e\u00edv\u00e1 t\u0159et\u00ed generace tohoto standardu. Specifikace USB 1.0 se objevila v roce 1998 &#8211; maxim\u00e1ln\u00ed propustnost p\u0159es takovou z\u00e1suvku je ud\u00e1v\u00e1na na pouh\u00fdch 1,5 MB\/s. Dne\u0161n\u00ed verze USB 3.2 nab\u00edz\u00ed rychlost a\u017e 2,5 GB\/s, co\u017e je p\u0159ibli\u017en\u011b 1 700kr\u00e1t v\u00edce ne\u017e u USB 1.0. V roce 2002 byl ofici\u00e1ln\u011b schv\u00e1len standard <strong>IEEE 802.15.1<\/strong> &#8211; jedn\u00e1 se samoz\u0159ejm\u011b o <strong>Bluetooth<\/strong>. Jednalo se o prvn\u00ed verzi: <strong>Bluetooth 1.0<\/strong> &#8211; p\u0159enos dosahoval rychlosti a\u017e 21 kb\/s. Dal\u0161\u00edm stupn\u011bm byl <strong>Bluetooth 1.2<\/strong> (p\u0159enos &#8211; 328 kb\/s), pot\u00e9 p\u0159i\u0161el na \u0159adu Bluetooth 1.2 (p\u0159enos &#8211; 328 kb\/s). <strong><em>Bluetooth 2.0 + EDR <\/em><\/strong>(Enhanced Data Rate) &#8211; p\u0159enos se zv\u00fd\u0161il na 2,1 Mb\/s. Tak\u00e9 druh\u00e1 generace byla vylep\u0161ena &#8211; <strong>Bluetooth 2.1 + EDR<\/strong> nab\u00eddl u\u017eivatel\u016fm jednodu\u0161\u0161\u00ed proces p\u00e1rov\u00e1n\u00ed za\u0159\u00edzen\u00ed a p\u0159edev\u0161\u00edm p\u0159enos vy\u017eadoval men\u0161\u00ed spot\u0159ebu energie. <strong>Bluetooth 3.0 + HS<\/strong> (High Speed) zrychlil a\u017e na 24 Mb\/s, verze <strong>Bluetooth 3.1 + HS<\/strong> rychlost t\u00e9m\u011b\u0159 zdvojn\u00e1sobila na -40 Mb\/s. <strong>Bluetooth 4.0 + LE<\/strong> (Low Energy) &#8211; poskytuje u\u017eivateli p\u0159enosovou rychlost 1 Mb\/s, co\u017e pomohlo v\u00fdrazn\u011b sn\u00ed\u017eit mno\u017estv\u00ed spot\u0159ebovan\u00e9 energie a umo\u017enilo zv\u00fd\u0161it dosah na p\u0159ibli\u017en\u011b 100 m. Aktualizovan\u00e1 verze byla vytvo\u0159ena pro pou\u017eit\u00ed za\u0159\u00edzen\u00ed<strong> Bluetooth 4.1<\/strong> se za\u0159\u00edzen\u00edmi, kter\u00e1 jsou sou\u010d\u00e1st\u00ed konceptu internetu v\u011bc\u00ed (IoT). N\u00e1sledovala verze<strong> Bluetooth 4.2<\/strong> (rychlej\u0161\u00ed p\u0159enos, lep\u0161\u00ed zabezpe\u010den\u00ed a jednodu\u0161\u0161\u00ed p\u0159ipojen\u00ed k objekt\u016fm. <strong>Bluetooth 5.0<\/strong> je dne\u0161n\u00ed standardizovan\u00e1 verze s p\u0159enosovou rychlost\u00ed 2 Mb\/s pro nositeln\u00e1 za\u0159\u00edzen\u00ed a a\u017e 50 Mb\/s pro ostatn\u00ed za\u0159\u00edzen\u00ed. S technologi\u00ed <strong>Bluetooth 5.0 dosahuje<\/strong> provozn\u00ed dosah 140 m v otev\u0159en\u00e9m prostoru.            <\/p>\n<p> V souhrnu vypad\u00e1 <strong>standard Bluetooth<\/strong> n\u00e1sledovn\u011b: <\/p>\n<ul>\n\n<li>1.0 &#8211; rychlost p\u0159enosu dat a\u017e 21 kb\/s. <li>1.1 \u2013 do 124 kb\/s. <li>1.2 \u2013 do 328 kb\/s. <li>2.0 + EDR \u2013 do 2,1 Mb\/s. <li>3.0 + HS \u2013 do 24 Mb\/s. <li>3.1 + HS \u2013 do 40 Mb\/s. <li>4.0 + LE <li>Bluetooth 4.1 <li>Bluetooth 4.2 <li>Bluetooth 5.0 <\/li>\n<\/ul>\n<h2>WiFi a Bluetooth &#8211; rozd\u00edly a podobnosti<\/h2>\n\n\n<p>\n<strong>WiFi a Bluetooth jsou velmi podobn\u00e9 standardy bezdr\u00e1tov\u00e9 komunikace.<\/strong> P\u0159edpoklady maj\u00ed mnoho spole\u010dn\u00e9ho, ale ve skute\u010dnosti jsou velmi odli\u0161n\u00e9. Nelze jednozna\u010dn\u011b \u0159\u00edci, kter\u00e1 technologie je lep\u0161\u00ed (s v\u00fdjimkou p\u0159\u00edpad\u016f, kdy je jasn\u011b definov\u00e1n \u00fa\u010del konkr\u00e9tn\u00edho p\u0159ipojen\u00ed). Ka\u017ed\u00e1 norma m\u00e1 sv\u00e9 jedine\u010dn\u00e9 vlastnosti, kter\u00e9 se v r\u016fzn\u00fdch p\u0159\u00edpadech st\u00e1vaj\u00ed hodnotn\u00fdmi nebo diskvalifikuj\u00edc\u00edmi. Ob\u011b technologie <strong>pracuj\u00ed na velmi bl\u00edzk\u00fdch r\u00e1diov\u00fdch frekvenc\u00edch<\/strong> &#8211; WiFi vyu\u017e\u00edv\u00e1 frekven\u010dn\u00ed p\u00e1sma 2,4 GHz (2400 MHz a\u017e 2485 MHz) nebo 5 GHz (4915 MHz a\u017e 5825 MHz), zat\u00edmco Bluetooth vyu\u017e\u00edv\u00e1 p\u00e1smo 2,4 GHz (2400 MHz a\u017e 2485 MHz). <strong>Oba standardy jsou bezdr\u00e1tov\u00e9 a slou\u017e\u00ed k p\u0159enosu dat<\/strong>, ale pou\u017e\u00edvaj\u00ed se pro zcela odli\u0161n\u00e9 aplikace. WiFi vy\u017eaduje k p\u0159enosu dat podstatn\u011b v\u00edce energie ne\u017e Bluetooth, ale dosah a propustnost spojen\u00ed je mnohem vy\u0161\u0161\u00ed. WiFi funguje dob\u0159e jako stacion\u00e1rn\u00ed \u0159e\u0161en\u00ed, zejm\u00e9na vzhledem k tomu, \u017ee k nav\u00e1z\u00e1n\u00ed spojen\u00ed je zapot\u0159eb\u00ed sm\u011brova\u010d. Bluetooth je mnohem mobiln\u011bj\u0161\u00ed. P\u0159ipojen\u00ed za\u0159\u00edzen\u00ed p\u0159es Bluetooth je mnohem jednodu\u0161\u0161\u00ed a rychlej\u0161\u00ed ne\u017e slo\u017eit\u00fd postup konfigurace za\u0159\u00edzen\u00ed, aby byla ve stejn\u00e9 s\u00edti. Takov\u00fd postup m\u00e1 v\u0161ak i sv\u00e9 v\u00fdhody. Obsahuje prvky, kter\u00e9 v\u00fdrazn\u011b ovliv\u0148uj\u00ed bezpe\u010dnost spojen\u00ed &#8211; Bluetooth je mnohem m\u00e9n\u011b odoln\u00fd v\u016f\u010di v\u0161em druh\u016fm \u00fatok\u016f. Souhrnn\u011b lze \u0159\u00edci, \u017ee v\u00fdhodou standardu Bluetooth oproti WiFi je mnohem rychlej\u0161\u00ed nastaven\u00ed, mnohem men\u0161\u00ed spot\u0159eba energie pro p\u0159enos, pot\u0159eba pouze za\u0159\u00edzen\u00ed s modulem a omezen\u00fd dosah zaji\u0161\u0165uje, \u017ee m\u016f\u017ee existovat v\u00edce spojen\u00ed najednou. Cenou za tyto v\u00fdhody je ni\u017e\u0161\u00ed propustnost a mnohem ni\u017e\u0161\u00ed stupe\u0148 zabezpe\u010den\u00ed, a proto se moduly Bluetooth instaluj\u00ed do za\u0159\u00edzen\u00ed, kter\u00e1 tyto funkce nevy\u017eaduj\u00ed.            <\/p>\n<h2><strong>K \u010demu se pou\u017e\u00edv\u00e1 technologie Bluetooth<\/strong>?<\/h2>\n\n\n<p>\n<strong>Pou\u017eit\u00ed Bluetooth <\/strong>m\u016f\u017ee b\u00fdt r\u016fzn\u00e9 a z\u00e1vis\u00ed na za\u0159\u00edzen\u00ed. Bluetooth se v sou\u010dasn\u00e9 dob\u011b hodn\u011b pou\u017e\u00edv\u00e1 v chytr\u00fdch telefonech k p\u0159enosu dat do jin\u00fdch za\u0159\u00edzen\u00ed nebo k p\u0159ipojen\u00ed k jin\u00fdm za\u0159\u00edzen\u00edm. V\u00fdborn\u011b se hod\u00ed tak\u00e9 pro po\u010d\u00edta\u010dov\u00e9 my\u0161i nebo kl\u00e1vesnice, stejn\u011b jako pro sluch\u00e1tka nebo hands-free syst\u00e9my v automobilech. R\u00e1diov\u00e9 vlny &#8220;proch\u00e1zej\u00ed&#8221; st\u011bnami a \u0161\u00ed\u0159\u00ed se radi\u00e1ln\u011b, tak\u017ee pro p\u0159\u00edjem sign\u00e1lu nen\u00ed nutn\u00e9 nat\u00e1\u010det vys\u00edla\u010d sm\u011brem k p\u0159ij\u00edma\u010di. To je velmi d\u016fle\u017eit\u00e1 vlastnost, d\u00edky n\u00ed\u017e se dnes mimo jin\u00e9 infra\u010derven\u00e9 d\u00e1lkov\u00e9 ovlada\u010de televizor\u016f prakticky nevyr\u00e1b\u011bj\u00ed. Tato za\u0159\u00edzen\u00ed vy\u017eadovala, aby byl zdroj sign\u00e1lu nasm\u011brov\u00e1n sm\u011brem k p\u0159ij\u00edma\u010di &#8211; kus ruky nebo od\u011bvu mohl snadno zablokovat cestu. Dnes v\u011bt\u0161ina d\u00e1lkov\u00fdch ovlada\u010d\u016f funguje prost\u0159ednictv\u00edm technologie Bluetooth, kter\u00e1 takovou nep\u0159\u00edjemnost zcela odstranila.       <\/p>\n<h2>Bluetooth je v\u0161ude<\/h2>\n\n\n<p>\n<a href=\"https:\/\/botland.cz\/258-bluetooth-moduly\" data-wpel-link=\"internal\">Moduly Bluetooth<\/a> se instaluj\u00ed tak\u00e9 do za\u0159\u00edzen\u00ed, jako jsou chytr\u00e9 hodinky, a udr\u017euj\u00ed je v neust\u00e1l\u00e9m kontaktu s telefonem. Pou\u017e\u00edvaj\u00ed se tak\u00e9 pro bezdr\u00e1tov\u00fd tisk, p\u0159\u00edstup k internetu a \u010dasto se instaluj\u00ed do pokro\u010dil\u00fdch za\u0159\u00edzen\u00ed pro dom\u00e1c\u00ed automatizaci nebo robot\u016f, aby komunikovaly s \u0159\u00eddic\u00ed jednotkou nebo jin\u00fdmi roboty. Na trhu jsou k dispozici hra\u010dky ovl\u00e1dan\u00e9 p\u0159es Bluetooth a velmi popul\u00e1rn\u00ed se stala tak\u00e9 sluch\u00e1tka a reproduktory s Bluetooth. Obl\u00edben\u00e9 jsou dnes tak\u00e9 p\u0159\u00edv\u011bsky Bluetooth, kter\u00e9 p\u0159i vzd\u00e1len\u00ed se od telefonu vyd\u00e1vaj\u00ed hlasit\u00fd zvuk &#8211; to m\u00e1 funkci proti kr\u00e1de\u017ei a usnad\u0148uje to tak\u00e9 lidem, kte\u0159\u00ed \u010dasto hledaj\u00ed nap\u0159\u00edklad sv\u00e9 kl\u00ed\u010de. <strong>Dosah telefonu p\u0159es Bluetooth<\/strong> je cca. 10 metr\u016f, ale tato hodnota se m\u016f\u017ee li\u0161it v z\u00e1vislosti na dal\u0161\u00edch provozovan\u00fdch za\u0159\u00edzen\u00edch, kter\u00e1 mohou provoz ru\u0161it. Vezm\u011bte pros\u00edm na v\u011bdom\u00ed, \u017ee fyzick\u00e9 zakryt\u00ed za\u0159\u00edzen\u00ed m\u016f\u017ee tak\u00e9 nep\u0159\u00edzniv\u011b ovlivnit jeho provoz.      <\/p><img decoding=\"async\" class=\"aligncenter size-full wp-image-3224\" src=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2020\/01\/bluetooth-jak-to-dzia%C5%82a_przyk%C5%82ady-urz%C4%85dze%C5%84.jpg\" alt=\"\" width=\"2400\" height=\"400\"><\/p>\n\n\n\n<h2>P\u016fvod n\u00e1zvu<\/h2>\n\n\n<p> N\u00e1zev Bluetooth m\u016f\u017ee b\u00fdt pro mnoh\u00e9 neintuitivn\u00ed &#8211; doslovn\u00fd p\u0159eklad z angli\u010dtiny je \u201e Modr\u00fd zub\u201c. Bluetooth je p\u0159ezd\u00edvka d\u00e1nsk\u00e9ho kr\u00e1le Haralda, kter\u00fd vl\u00e1dl ve druh\u00e9 polovin\u011b 10. stolet\u00ed. Harald Blatand byl \u010dasto ozna\u010dov\u00e1n jako Harald Bluetooth (Harald Modrozub\u00fd) kv\u016fli tmav\u00e9mu chrupu, kter\u00fd v t\u00e9 dob\u011b m\u011bl. P\u00e1tr\u00e1n\u00edm v pramenech lze doj\u00edt ke skute\u010dnosti, kter\u00e1 dokl\u00e1d\u00e1, \u017ee pro tehdej\u0161\u00ed lid v\u00fdznam slova \u201emodr\u00fd\u201c nazna\u010doval dne\u0161n\u00ed v\u00fdznam slova \u201etmav\u00fd\u201c. V\u00fdrazn\u00e9 modr\u00e9 logo s runov\u00fdmi inici\u00e1lami HB (Herald Bluetooth) tak nem\u00e1 p\u0159\u00edm\u00e9 historick\u00e9 opodstatn\u011bn\u00ed, ale dnes je jednou z nejrozpoznateln\u011bj\u0161\u00edch ochrann\u00fdch zn\u00e1mek. Bluetooth je ve skute\u010dnosti zna\u010dka (na rozd\u00edl nap\u0159\u00edklad od WiFi), na kterou dohl\u00ed\u017e\u00ed organizace Bluetooth SIG.      <\/p>\n<figure id=\"attachment_3225\" aria-describedby=\"caption-attachment-3225\" style=\"width: 2000px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-3225\" src=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2020\/01\/note-2527458.jpg\" alt=\"\" width=\"2000\" height=\"799\" srcset=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2020\/01\/note-2527458.jpg 2000w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2020\/01\/note-2527458-300x120.jpg 300w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2020\/01\/note-2527458-768x307.jpg 768w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2020\/01\/note-2527458-1024x409.jpg 1024w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2020\/01\/note-2527458-640x256.jpg 640w\" sizes=\"(max-width: 2000px) 100vw, 2000px\" \/><figcaption id=\"caption-attachment-3225\" class=\"wp-caption-text\">Zde je n\u00e1vod, jak vzniklo logo Bluetooth<\/figcaption><\/figure>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c521ce1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c521ce1\" data-element_type=\"section\" data-e-type=\"section\">\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-4a33a45\" data-id=\"4a33a45\" 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-a227456 elementor-widget elementor-widget-text-editor\" data-id=\"a227456\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"k-faq-accord\">    <h2>Bluetooth &#8211; \u010casto kladen\u00e9 dotazy<\/h2>    <div class=\"tabs\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/FAQPage\">\n<div class=\"tab\" itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\"><input id=\"chck1\" type=\"checkbox\">            <h3><label class=\"tab-label\" itemprop=\"name\" for=\"chck1\">Funguje Bluetooth bez internetu?<\/label><\/h3>            <div class=\"tab-content\" itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\">                <div itemprop=\"text\">                    <p style=\"text-align: justify;\"><strong><a href=\"https:\/\/botland.cz\/258-bluetooth-moduly\" data-wpel-link=\"internal\">Bluetooth<\/a><\/strong> pou\u017e\u00edv\u00e1 k propojen\u00ed za\u0159\u00edzen\u00ed r\u00e1diov\u00e9 vlny kr\u00e1tk\u00e9ho dosahu. Za\u0159\u00edzen\u00ed Bluetooth m\u016f\u017eete pou\u017e\u00edvat, i kdy\u017e nem\u00e1te p\u0159\u00edstup k mobiln\u00ed s\u00edti nebo p\u0159ipojen\u00ed k internetu. Pokud se v\u00e1m zd\u00e1, \u017ee p\u0159ipojen\u00ed Bluetooth vyu\u017e\u00edv\u00e1 data, je vin\u00edkem pravd\u011bpodobn\u011b n\u011bkter\u00e1 z pou\u017e\u00edvan\u00fdch aplikac\u00ed.  <\/p>                <\/div>            <\/div>        <\/div>\n<div class=\"tab\" itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\"><input id=\"chck2\" type=\"checkbox\">            <h3><label class=\"tab-label\" itemprop=\"name\" for=\"chck2\">Na jakou vzd\u00e1lenost funguje Bluetooth?<\/label><\/h3>            <div class=\"tab-content\" itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\">                <div itemprop=\"text\">                    <p style=\"text-align: justify;\">Dosah Bluetooth je obvykle n\u011bkolik metr\u016f a\u017e p\u0159ibli\u017en\u011b 100 metr\u016f v p\u0159\u00edm\u00e9m sm\u011bru bez p\u0159ek\u00e1\u017eek br\u00e1n\u00edc\u00edch p\u0159\u00edjmu. Dosah se m\u016f\u017ee li\u0161it v z\u00e1vislosti na v\u00fdkonu vys\u00edla\u010de a p\u0159ij\u00edma\u010de, p\u0159ek\u00e1\u017ek\u00e1ch mezi za\u0159\u00edzen\u00edmi nebo jin\u00e9m ru\u0161en\u00ed. Dal\u0161\u00ed informace naleznete v \u010dl\u00e1nku <strong><a href=\"https:\/\/botland.cz\/blog\/?p=88853\" data-wpel-link=\"internal\">Botland Blog<\/a><\/strong> o technologii Bluetooth.   <\/p>                <\/div>            <\/div>        <\/div>\n<div class=\"tab\" itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\"><input id=\"chck3\" type=\"checkbox\">            <h3><label class=\"tab-label\" itemprop=\"name\" for=\"chck3\">Funguje Bluetooth i p\u0159es zdi?<\/label><\/h3>            <div class=\"tab-content\" itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\">                <div itemprop=\"text\">                    <p style=\"text-align: justify;\">R\u00e1diov\u00e9 vlny samoz\u0159ejm\u011b pronikaj\u00ed zdmi &#8211; jinak byste museli vys\u00edla\u010d nam\u00ed\u0159it na p\u0159ij\u00edma\u010d, abyste jej mohli pou\u017e\u00edt. O tom, jak dob\u0159e bude za\u0159\u00edzen\u00ed Bluetooth fungovat, v\u0161ak rozhoduje p\u0159edev\u0161\u00edm dosah za\u0159\u00edzen\u00ed a \u0159ada dal\u0161\u00edch faktor\u016f uveden\u00fdch v dal\u0161\u00edch \u010dasto kladen\u00fdch dotazech.  <\/p>                <\/div>            <\/div>        <\/div>\n<div class=\"tab\" itemprop=\"mainEntity\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Question\"><input id=\"chck4\" type=\"checkbox\">            <h3><label class=\"tab-label\" itemprop=\"name\" for=\"chck4\">Jak\u00e9 vlnov\u00e9 d\u00e9lky pou\u017e\u00edv\u00e1 Bluetooth?<\/label><\/h3>            <div class=\"tab-content\" itemprop=\"acceptedAnswer\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/Answer\">                <div itemprop=\"text\">                    <p style=\"text-align: justify;\">Bluetooth je standard pro bezdr\u00e1tovou komunika\u010dn\u00ed technologii kr\u00e1tk\u00e9ho dosahu. Za\u0159\u00edzen\u00ed p\u0159ipojen\u00e1 v s\u00edti Bluetooth spolu komunikuj\u00ed pomoc\u00ed r\u00e1diov\u00fdch vln o velmi vysok\u00e9 frekvenci (UHF).  Jedn\u00e1 se o elektromagnetick\u00e9 vlny o frekvenci p\u0159ibli\u017en\u011b 2,4 gigahertz\u016f (2,4 miliardy vln za sekundu).<\/p>                <\/div>            <\/div>        <\/div><\/div>        <\/div>\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":"<p>Zd\u00e1 se, \u017ee je tu odjak\u017eiva a l\u00e9t\u00e1 v\u0161ude, ale odkud se vzal a jak se tam dostal?<\/p>\n","protected":false},"author":7,"featured_media":60167,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[549],"tags":[],"class_list":["post-88853","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kompendium-cs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bluetooth - Jak to funguje? Co to je? Jak\u00e9 existuj\u00ed verze? - Botland<\/title>\n<meta name=\"description\" content=\"Jak funguje technologie Bluetooth? Co m\u00e1 spole\u010dn\u00e9ho s WiFi? Kde se Bluetooth pou\u017e\u00edv\u00e1? Zjist\u011bte spoustu cenn\u00fdch informac\u00ed o technologii Bluetooth a jej\u00edch aplikac\u00edch.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bluetooth - Jak to funguje? Co to je? Jak\u00e9 existuj\u00ed verze? - Botland\" \/>\n<meta property=\"og:description\" content=\"Jak funguje technologie Bluetooth? Co m\u00e1 spole\u010dn\u00e9ho s WiFi? Kde se Bluetooth pou\u017e\u00edv\u00e1? Zjist\u011bte spoustu cenn\u00fdch informac\u00ed o technologii Bluetooth a jej\u00edch aplikac\u00edch.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/\" \/>\n<meta property=\"og:site_name\" content=\"Botland\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/Botland\/\" \/>\n<meta property=\"article:published_time\" content=\"2020-03-06T11:20:03+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-09-12T09:07:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/05\/new2023-bluetooth-jak-to-dziala-02.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1510\" \/>\n\t<meta property=\"og:image:height\" content=\"755\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Anna Wieczorek\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napsal(a)\" \/>\n\t<meta name=\"twitter:data1\" content=\"Anna Wieczorek\" \/>\n\t<meta name=\"twitter:label2\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data2\" content=\"15 minut\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/\"},\"author\":{\"name\":\"Anna Wieczorek\",\"@id\":\"https:\\\/\\\/botland.store\\\/blog\\\/#\\\/schema\\\/person\\\/432699b001be1bfbf673d91827fb8735\"},\"headline\":\"Bluetooth &#8211; Jak to funguje?\",\"datePublished\":\"2020-03-06T11:20:03+00:00\",\"dateModified\":\"2024-09-12T09:07:38+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/\"},\"wordCount\":3116,\"publisher\":{\"@id\":\"https:\\\/\\\/botland.store\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/botland.cz\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/05\\\/new2023-bluetooth-jak-to-dziala-02.jpg\",\"articleSection\":[\"Kompendium\"],\"inLanguage\":\"cs\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/\",\"url\":\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/\",\"name\":\"Bluetooth - Jak to funguje? Co to je? Jak\u00e9 existuj\u00ed verze? - Botland\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/botland.store\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/botland.cz\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/05\\\/new2023-bluetooth-jak-to-dziala-02.jpg\",\"datePublished\":\"2020-03-06T11:20:03+00:00\",\"dateModified\":\"2024-09-12T09:07:38+00:00\",\"description\":\"Jak funguje technologie Bluetooth? Co m\u00e1 spole\u010dn\u00e9ho s WiFi? Kde se Bluetooth pou\u017e\u00edv\u00e1? Zjist\u011bte spoustu cenn\u00fdch informac\u00ed o technologii Bluetooth a jej\u00edch aplikac\u00edch.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/#breadcrumb\"},\"inLanguage\":\"cs\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/#primaryimage\",\"url\":\"https:\\\/\\\/botland.cz\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/05\\\/new2023-bluetooth-jak-to-dziala-02.jpg\",\"contentUrl\":\"https:\\\/\\\/botland.cz\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/05\\\/new2023-bluetooth-jak-to-dziala-02.jpg\",\"width\":1510,\"height\":755},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/bluetooth-jak-to-funguje\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Strona g\u0142\u00f3wna\",\"item\":\"https:\\\/\\\/botland.cz\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Bluetooth &#8211; Jak to funguje?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/botland.store\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/botland.store\\\/blog\\\/\",\"name\":\"Botland\",\"description\":\"Blog Raspberry Pi, Arduino, elektronika i robotyka - Botland\",\"publisher\":{\"@id\":\"https:\\\/\\\/botland.store\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/botland.store\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"cs\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/botland.store\\\/blog\\\/#organization\",\"name\":\"Botland\",\"url\":\"https:\\\/\\\/botland.store\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\\\/\\\/botland.store\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/botland.store\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/04\\\/logo_kolor_WP_2-1.png\",\"contentUrl\":\"https:\\\/\\\/botland.store\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/04\\\/logo_kolor_WP_2-1.png\",\"width\":250,\"height\":57,\"caption\":\"Botland\"},\"image\":{\"@id\":\"https:\\\/\\\/botland.store\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/facebook.com\\\/Botland\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/botland.store\\\/blog\\\/#\\\/schema\\\/person\\\/432699b001be1bfbf673d91827fb8735\",\"name\":\"Anna Wieczorek\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"cs\",\"@id\":\"https:\\\/\\\/botland.cz\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/Anna-150x150.jpg\",\"url\":\"https:\\\/\\\/botland.cz\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/Anna-150x150.jpg\",\"contentUrl\":\"https:\\\/\\\/botland.cz\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/Anna-150x150.jpg\",\"caption\":\"Anna Wieczorek\"},\"description\":\"Kobieta w m\u0119skim \u015bwiecie robot\u00f3w. Zwi\u0105zana z Botlandem \\\"w\u0142a\u015bciwie od zawsze\\\". Estetka, kt\u00f3rej wsz\u0119dzie pe\u0142no. Wierzy, \u017ce na sen przyjdzie jeszcze czas. Po pracy entuzjastka kultury i kuchni hiszpa\u0144skiej.\",\"url\":\"https:\\\/\\\/botland.cz\\\/blog\\\/author\\\/anna\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Bluetooth - Jak to funguje? Co to je? Jak\u00e9 existuj\u00ed verze? - Botland","description":"Jak funguje technologie Bluetooth? Co m\u00e1 spole\u010dn\u00e9ho s WiFi? Kde se Bluetooth pou\u017e\u00edv\u00e1? Zjist\u011bte spoustu cenn\u00fdch informac\u00ed o technologii Bluetooth a jej\u00edch aplikac\u00edch.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/","og_locale":"cs_CZ","og_type":"article","og_title":"Bluetooth - Jak to funguje? Co to je? Jak\u00e9 existuj\u00ed verze? - Botland","og_description":"Jak funguje technologie Bluetooth? Co m\u00e1 spole\u010dn\u00e9ho s WiFi? Kde se Bluetooth pou\u017e\u00edv\u00e1? Zjist\u011bte spoustu cenn\u00fdch informac\u00ed o technologii Bluetooth a jej\u00edch aplikac\u00edch.","og_url":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/","og_site_name":"Botland","article_publisher":"https:\/\/facebook.com\/Botland\/","article_published_time":"2020-03-06T11:20:03+00:00","article_modified_time":"2024-09-12T09:07:38+00:00","og_image":[{"width":1510,"height":755,"url":"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/05\/new2023-bluetooth-jak-to-dziala-02.jpg","type":"image\/jpeg"}],"author":"Anna Wieczorek","twitter_card":"summary_large_image","twitter_misc":{"Napsal(a)":"Anna Wieczorek","Odhadovan\u00e1 doba \u010dten\u00ed":"15 minut"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/#article","isPartOf":{"@id":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/"},"author":{"name":"Anna Wieczorek","@id":"https:\/\/botland.store\/blog\/#\/schema\/person\/432699b001be1bfbf673d91827fb8735"},"headline":"Bluetooth &#8211; Jak to funguje?","datePublished":"2020-03-06T11:20:03+00:00","dateModified":"2024-09-12T09:07:38+00:00","mainEntityOfPage":{"@id":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/"},"wordCount":3116,"publisher":{"@id":"https:\/\/botland.store\/blog\/#organization"},"image":{"@id":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/#primaryimage"},"thumbnailUrl":"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/05\/new2023-bluetooth-jak-to-dziala-02.jpg","articleSection":["Kompendium"],"inLanguage":"cs"},{"@type":"WebPage","@id":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/","url":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/","name":"Bluetooth - Jak to funguje? Co to je? Jak\u00e9 existuj\u00ed verze? - Botland","isPartOf":{"@id":"https:\/\/botland.store\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/#primaryimage"},"image":{"@id":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/#primaryimage"},"thumbnailUrl":"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/05\/new2023-bluetooth-jak-to-dziala-02.jpg","datePublished":"2020-03-06T11:20:03+00:00","dateModified":"2024-09-12T09:07:38+00:00","description":"Jak funguje technologie Bluetooth? Co m\u00e1 spole\u010dn\u00e9ho s WiFi? Kde se Bluetooth pou\u017e\u00edv\u00e1? Zjist\u011bte spoustu cenn\u00fdch informac\u00ed o technologii Bluetooth a jej\u00edch aplikac\u00edch.","breadcrumb":{"@id":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/#breadcrumb"},"inLanguage":"cs","potentialAction":[{"@type":"ReadAction","target":["https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/"]}]},{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/#primaryimage","url":"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/05\/new2023-bluetooth-jak-to-dziala-02.jpg","contentUrl":"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/05\/new2023-bluetooth-jak-to-dziala-02.jpg","width":1510,"height":755},{"@type":"BreadcrumbList","@id":"https:\/\/botland.cz\/blog\/bluetooth-jak-to-funguje\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Strona g\u0142\u00f3wna","item":"https:\/\/botland.cz\/blog\/"},{"@type":"ListItem","position":2,"name":"Bluetooth &#8211; Jak to funguje?"}]},{"@type":"WebSite","@id":"https:\/\/botland.store\/blog\/#website","url":"https:\/\/botland.store\/blog\/","name":"Botland","description":"Blog Raspberry Pi, Arduino, elektronika i robotyka - Botland","publisher":{"@id":"https:\/\/botland.store\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/botland.store\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"cs"},{"@type":"Organization","@id":"https:\/\/botland.store\/blog\/#organization","name":"Botland","url":"https:\/\/botland.store\/blog\/","logo":{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/botland.store\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/botland.store\/blog\/wp-content\/uploads\/2018\/04\/logo_kolor_WP_2-1.png","contentUrl":"https:\/\/botland.store\/blog\/wp-content\/uploads\/2018\/04\/logo_kolor_WP_2-1.png","width":250,"height":57,"caption":"Botland"},"image":{"@id":"https:\/\/botland.store\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/facebook.com\/Botland\/"]},{"@type":"Person","@id":"https:\/\/botland.store\/blog\/#\/schema\/person\/432699b001be1bfbf673d91827fb8735","name":"Anna Wieczorek","image":{"@type":"ImageObject","inLanguage":"cs","@id":"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2021\/02\/Anna-150x150.jpg","url":"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2021\/02\/Anna-150x150.jpg","contentUrl":"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2021\/02\/Anna-150x150.jpg","caption":"Anna Wieczorek"},"description":"Kobieta w m\u0119skim \u015bwiecie robot\u00f3w. Zwi\u0105zana z Botlandem \"w\u0142a\u015bciwie od zawsze\". Estetka, kt\u00f3rej wsz\u0119dzie pe\u0142no. Wierzy, \u017ce na sen przyjdzie jeszcze czas. Po pracy entuzjastka kultury i kuchni hiszpa\u0144skiej.","url":"https:\/\/botland.cz\/blog\/author\/anna\/"}]}},"_links":{"self":[{"href":"https:\/\/botland.cz\/blog\/wp-json\/wp\/v2\/posts\/88853","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/botland.cz\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/botland.cz\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/botland.cz\/blog\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/botland.cz\/blog\/wp-json\/wp\/v2\/comments?post=88853"}],"version-history":[{"count":0,"href":"https:\/\/botland.cz\/blog\/wp-json\/wp\/v2\/posts\/88853\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/botland.cz\/blog\/wp-json\/wp\/v2\/media\/60167"}],"wp:attachment":[{"href":"https:\/\/botland.cz\/blog\/wp-json\/wp\/v2\/media?parent=88853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/botland.cz\/blog\/wp-json\/wp\/v2\/categories?post=88853"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/botland.cz\/blog\/wp-json\/wp\/v2\/tags?post=88853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}