{"id":97698,"date":"2020-10-20T20:42:23","date_gmt":"2020-10-20T18:42:23","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/obzor-setevyh-protokolov-i-protokolov-obmena-soobshheniyami-dlya-iot"},"modified":"2020-10-20T20:42:23","modified_gmt":"2020-10-20T18:42:23","slug":"obzor-setevyh-protokolov-i-protokolov-obmena-soobshheniyami-dlya-iot","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/obzor-setevyh-protokolov-i-protokolov-obmena-soobshheniyami-dlya-iot","title":{"rendered":"P\u0159ehled s\u00ed\u0165ov\u00fdch protokol\u016f a protokol\u016f v\u00fdm\u011bny zpr\u00e1v pro IoT","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><strong><em>Ahoj, Habr\u00e1ci!&nbsp;<\/em><\/strong><noindex><a rel=\"nofollow\" href=\"https:\/\/otus.pw\/dnQ0\/\"><strong><em>Prvn\u00ed online kurz IoT v\u00fdvoj\u00e1\u0159 v Rusku<\/em><\/strong><\/a><\/noindex><strong><em>&nbsp;startuje v OTUS u\u017e v \u0159\u00edjnu. Pr\u00e1v\u011b te\u010f je otev\u0159en n\u00e1bor na kurz, a proto s v\u00e1mi pokra\u010dujeme v sd\u00edlen\u00ed u\u017eite\u010dn\u00fdch materi\u00e1l\u016f.<\/em><\/strong><\/p>\n<p><img decoding=\"async\" alt=\"P\u0159ehled s\u00ed\u0165ov\u00fdch protokol\u016f a protokol\u016f v\u00fdm\u011bny zpr\u00e1v pro IoT\" src=\"\/wp-content\/uploads\/2020\/10\/eae09a35084d8a75a89c22845b0d1c1f.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Internet v\u011bc\u00ed (IoT, Internet of Things) bude vybudov\u00e1n na st\u00e1vaj\u00edc\u00ed s\u00ed\u0165ov\u00e9 infrastruktu\u0159e, technologi\u00edch a protokolech, kter\u00e9 jsou moment\u00e1ln\u011b pou\u017e\u00edv\u00e1ny v dom\u00e1cnostech\/kanzeln\u00e1 a na internetu, a nab\u00eddne mnohem v\u00edce.<\/p>\n<p>C\u00edlem tohoto pr\u016fvodce je poskytnout stru\u010dn\u00fd p\u0159ehled s\u00ed\u0165ov\u00fdch a aplika\u010dn\u00edch protokol\u016f pro IoT.<\/p>\n<p>Pozn\u00e1mka. Mus\u00edte m\u00edt znalosti <noindex><a rel=\"nofollow\" href=\"http:\/\/www.steves-internet-guide.com\/networking\/\"><u>z\u00e1klad\u016f s\u00ed\u0165ov\u00fdch technologi\u00ed<\/u><\/a><\/noindex>.<\/p>\n<h4>IoT s\u00edt\u011b<\/h4>\n<p>IoT bude fungovat v existuj\u00edc\u00edch TCP\/IP s\u00edt\u00edch.<\/p>\n<p>TCP\/IP pou\u017e\u00edv\u00e1 \u010dty\u0159\u00farov\u0148ov\u00fd model s ur\u010den\u00fdmi protokoly na ka\u017ed\u00e9 \u00farovni. Viz <noindex><a rel=\"nofollow\" href=\"http:\/\/www.steves-internet-guide.com\/internet-protocol-suite-explained\/\"><u>understanding the TCP\/IP 4 layer model<\/u><\/a><\/noindex> (rozum\u00edme \u010dty\u0159\u00farov\u0148ov\u00e9mu modelu TCP\/IP).<\/p>\n<p>Na diagramu n\u00ed\u017ee je uvedeno srovn\u00e1n\u00ed protokol\u016f, kter\u00e9 se v sou\u010dasnosti pou\u017e\u00edvaj\u00ed, a t\u011bch, kter\u00e9 pravd\u011bpodobn\u011b budou pou\u017eity pro IoT.<\/p>\n<p><img decoding=\"async\" alt=\"P\u0159ehled s\u00ed\u0165ov\u00fdch protokol\u016f a protokol\u016f v\u00fdm\u011bny zpr\u00e1v pro IoT\" src=\"\/wp-content\/uploads\/2020\/10\/d8ab9d850cbff804a444ebad7f969547.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Pozn\u00e1mky k diagramu:<\/p>\n<ol>\n<li>\n<p>Velikost p\u00edsma zobrazuje \u00farove\u0148 popularity protokolu. Nap\u0159\u00edklad vlevo je IPv4 v\u011bt\u0161\u00ed, proto\u017ee je mnohem popul\u00e1rn\u011bj\u0161\u00ed v sou\u010dasn\u00e9m internetu. Na prav\u00e9 stran\u011b je ale men\u0161\u00ed, proto\u017ee se o\u010dek\u00e1v\u00e1, \u017ee IPv6 bude popul\u00e1rn\u011bj\u0161\u00ed v IoT.<\/p>\n<\/li>\n<li>\n<p>N\u011bkter\u00e9 protokoly nejsou zobrazeny.<\/p>\n<\/li>\n<li>\n<p>Nejv\u00edce zm\u011bn se o\u010dek\u00e1v\u00e1 na kan\u00e1lov\u00e9 (\u00farovn\u011b 1 a 2) a aplika\u010dn\u00ed \u00farovni (\u00farove\u0148 4).<\/p>\n<\/li>\n<li>\n<p>S\u00ed\u0165ov\u00e9 a transportn\u00ed \u00farovn\u011b pravd\u011bpodobn\u011b z\u016fstanou beze zm\u011bny.<\/p>\n<\/li>\n<\/ol>\n<h4>Protokoly kan\u00e1lov\u00e9 \u00farovn\u011b<\/h4>\n<p>Na kan\u00e1lov\u00e9 \u00farovni (Data Link) pot\u0159ebujete propojit za\u0159\u00edzen\u00ed. Mohou b\u00fdt bl\u00edzko sebe, nap\u0159\u00edklad v lok\u00e1ln\u00edch s\u00edt\u00edch (local networks), nebo na velkou vzd\u00e1lenost od sebe: ve m\u011bstsk\u00fdch (metropolitan area networks) a glob\u00e1ln\u00edch s\u00edt\u00edch (wide area networks).<\/p>\n<p>V sou\u010dasnosti se na t\u00e9to \u00farovni v dom\u00e1c\u00edch a kancel\u00e1\u0159sk\u00fdch s\u00edt\u00edch (LAN) pou\u017e\u00edv\u00e1 Ethernet a Wi-Fi, a v mobiln\u00edch (WAN) \u2013 3G\/4G. Nicm\u00e9n\u011b mnoh\u00e1 IoT za\u0159\u00edzen\u00ed maj\u00ed n\u00edzkou spot\u0159ebu energie, nap\u0159\u00edklad senzory, a nap\u00e1j\u00ed se pouze z bateri\u00ed. V t\u011bchto p\u0159\u00edpadech Ethernet nevyhovuje, ale lze pou\u017e\u00edt low powered Wi-Fi a low powered Bluetooth.<\/p>\n<p>A\u010dkoli k p\u0159ipojen\u00ed t\u011bchto za\u0159\u00edzen\u00ed bude st\u00e1le pou\u017e\u00edv\u00e1na existuj\u00edc\u00ed bezdr\u00e1tov\u00e1 technologie (Wi-Fi, Bluetooth, 3G\/4G), stoj\u00ed tak\u00e9 za to v\u011bnovat pozornost nov\u00fdm technologi\u00edm, kter\u00e9 byly speci\u00e1ln\u011b navr\u017eeny pro IoT aplikace, jejich\u017e popularita pravd\u011bpodobn\u011b poroste.<\/p>\n<p>Mezi n\u011b pat\u0159\u00ed:<\/p>\n<ul>\n<li>\n<p>BLE \u2013 Bluetooth Low Energy<\/p>\n<\/li>\n<li>\n<p>LoRaWAN \u2013 Long Range WAN<\/p>\n<\/li>\n<li>\n<p>SigFox<\/p>\n<\/li>\n<li>\n<p>LTE-M<\/p>\n<\/li>\n<\/ul>\n<p>Podrobnosti jsou uvedeny v \u010dl\u00e1nku. <noindex><a rel=\"nofollow\" href=\"http:\/\/www.steves-internet-guide.com\/iot-wireless-technologies\/\"><u>P\u0159ehled bezdr\u00e1tov\u00fdch technologi\u00ed IoT.<\/u><\/a><\/noindex> (p\u0159ehled bezdr\u00e1tov\u00fdch technologi\u00ed IoT).<\/p>\n<h4>S\u00ed\u0165ov\u00e1 \u00farove\u0148<\/h4>\n<p>Na s\u00ed\u0165ov\u00e9 \u00farovni (Networking) v dlouhodob\u00e9m horizontu bude dominovat protokol. <noindex><a rel=\"nofollow\" href=\"http:\/\/www.steves-internet-guide.com\/ipv6-guide\/\"><u>IPv6<\/u><\/a><\/noindex>Je m\u00e1lo pravd\u011bpodobn\u00e9, \u017ee se pou\u017e\u00edv\u00e1n\u00ed IPv4 udr\u017e\u00ed, ale m\u016f\u017ee hr\u00e1t ur\u010ditou roli v po\u010d\u00e1te\u010dn\u00edch f\u00e1z\u00edch. V\u011bt\u0161ina dom\u00e1c\u00edch IoT za\u0159\u00edzen\u00ed, nap\u0159\u00edklad chytr\u00e9 \u017e\u00e1rovky, v sou\u010dasnosti pou\u017e\u00edv\u00e1 IPv4.<\/p>\n<h4>Transportn\u00ed \u00farove\u0148&nbsp;<\/h4>\n<p>Na transportn\u00ed \u00farovni (Transport) dominuje TCP jak na internetu, tak ve webu. Pou\u017e\u00edv\u00e1 se jak v HTTP, tak v mnoha jin\u00fdch obl\u00edben\u00fdch internetov\u00fdch protokolech (SMTP, POP3, IMAP4 atd.).<\/p>\n<p>MQTT, kter\u00fd o\u010dek\u00e1v\u00e1m, \u017ee se stane jedn\u00edm z hlavn\u00edch protokol\u016f aplika\u010dn\u00ed \u00farovn\u011b pro zas\u00edl\u00e1n\u00ed zpr\u00e1v, v sou\u010dasnosti pou\u017e\u00edv\u00e1 TCP.<\/p>\n<p>Nicm\u00e9n\u011b v budoucnu o\u010dek\u00e1v\u00e1m, \u017ee d\u00edky ni\u017e\u0161\u00edm re\u017eijn\u00edm n\u00e1klad\u016fm bude UDP popul\u00e1rn\u011bj\u0161\u00ed pro IoT. Pravideln\u011bji se pravd\u011bpodobn\u011b roz\u0161\u00ed\u0159\u00ed. <noindex><a rel=\"nofollow\" href=\"http:\/\/www.steves-internet-guide.com\/mqtt-sn\/\"><u>MQTT-SN<\/u><\/a><\/noindex>, funguj\u00edc\u00ed nad UDP. Viz \u010dl\u00e1nek o srovn\u00e1n\u00ed. <noindex><a rel=\"nofollow\" href=\"http:\/\/www.steves-internet-guide.com\/tcp-vs-udp\/\"><u>TCP vs UDP<\/u><\/a><\/noindex> .<\/p>\n<h4>Aplika\u010dn\u00ed \u00farove\u0148 a protokoly pro zas\u00edl\u00e1n\u00ed zpr\u00e1v<\/h4>\n<p>D\u016fle\u017eit\u00e9 charakteristiky pro protokoly IoT:<\/p>\n<ul>\n<li>\n<p>Rychlost \u2013 mno\u017estv\u00ed p\u0159enesen\u00fdch dat za sekundu.<\/p>\n<\/li>\n<li>\n<p>Zpo\u017ed\u011bn\u00ed \u2013 doba pot\u0159ebn\u00e1 k p\u0159enosu zpr\u00e1vy.<\/p>\n<\/li>\n<li>\n<p>Spot\u0159eba energie.<\/p>\n<\/li>\n<li>\n<p>Bezpe\u010dnost.<\/p>\n<\/li>\n<li>\n<p>Dostupnost softwarov\u00fdch n\u00e1stroj\u016f.<\/p>\n<\/li>\n<\/ul>\n<p>V sou\u010dasnosti jsou na t\u00e9to \u00farovni aktivn\u011b vyu\u017e\u00edv\u00e1ny dva hlavn\u00ed protokoly: HTTP a MQTT.<\/p>\n<p>HTTP je pravd\u011bpodobn\u011b nejzn\u00e1m\u011bj\u0161\u00ed protokol t\u00e9to \u00farovn\u011b, le\u017e\u00edc\u00ed v z\u00e1kladu webu (WWW). I nad\u00e1le bude m\u00edt d\u016fle\u017eit\u00fd v\u00fdznam pro IoT, nebo\u0165 se pou\u017e\u00edv\u00e1 pro REST API \u2013 hlavn\u00ed mechanismus interakce webov\u00fdch aplikac\u00ed a slu\u017eeb. Nicm\u00e9n\u011b kv\u016fli vysok\u00fdm re\u017eijn\u00edm n\u00e1klad\u016fm se HTTP pravd\u011bpodobn\u011b nestane hlavn\u00edm protokolem IoT, i kdy\u017e bude st\u00e1le \u0161iroce pou\u017e\u00edvan\u00e9 na internetu.<\/p>\n<p>MQTT (Message Queuing Telemetry Transport) se stal hlavn\u00edm protokolem pro zas\u00edl\u00e1n\u00ed zpr\u00e1v v IoT, d\u00edky sv\u00e9 lehkosti a jednoduchosti pou\u017eit\u00ed. Viz \u010dl\u00e1nek. <noindex><a rel=\"nofollow\" href=\"http:\/\/www.steves-internet-guide.com\/mqtt\/\"><u>\u00davod do MQTT pro za\u010d\u00e1te\u010dn\u00edky<\/u><\/a><\/noindex> (\u00davod do MQTT pro za\u010d\u00e1te\u010dn\u00edky).<\/p>\n<p>Srovn\u00e1n\u00ed HTTP a MQTT pro IoT<\/p>\n<p>MQTT se rychle st\u00e1v\u00e1 de facto standardem pro IoT aplikace. D\u016fvodem je jeho jednoduchost a rychlost ve srovn\u00e1n\u00ed s HTTP a to, \u017ee je to protokol \u201ejeden k mnoha\u201c, na rozd\u00edl od \u201ejednoho k jednomu\u201c (HTTP).<\/p>\n<p>Mnoho modern\u00edch webov\u00fdch aplikac\u00ed by s radost\u00ed vyu\u017eilo MQTT m\u00edsto HTTP, kdyby byl k dispozici v okam\u017eiku jejich v\u00fdvoje.<\/p>\n<p>Dobr\u00fdm p\u0159\u00edkladem je zas\u00edl\u00e1n\u00ed informac\u00ed mnoha klient\u016fm, nap\u0159\u00edklad o p\u0159\u00edjezdech a odjezdech vlak\u016f \/ autobus\u016f \/ letadel. V tomto sc\u00e9n\u00e1\u0159i m\u00e1 protokol \u201ejeden k jednomu\u201c, jako je HTTP, vysok\u00e9 re\u017eijn\u00ed n\u00e1klady a vytv\u00e1\u0159\u00ed velk\u00e9 zat\u00ed\u017een\u00ed webov\u00fdch server\u016f. \u0160k\u00e1lov\u00e1n\u00ed t\u011bchto webov\u00fdch server\u016f m\u016f\u017ee b\u00fdt obt\u00ed\u017en\u00e9. S MQTT se klienti p\u0159ipojuj\u00ed k brokerovi, kter\u00e9ho je snadn\u00e9 p\u0159id\u00e1vat pro vyva\u017eov\u00e1n\u00ed z\u00e1t\u011b\u017ee. Pod\u00edvejte se na tento tutori\u00e1l s videem. <noindex><a rel=\"nofollow\" href=\"http:\/\/www.steves-internet-guide.com\/republish-html-data-over-mqtt-flight-arrivals\/\"><u>Znovu publikovat HTML data p\u0159es MQTT (p\u0159\u00edklad p\u0159\u00edjezd\u016f let\u016f)<\/u><\/a><\/noindex> a \u010dl\u00e1nek <noindex><a rel=\"nofollow\" href=\"https:\/\/medium.com\/mqtt-buddy\/mqtt-vs-http-which-one-is-the-best-for-iot-c868169b3105\"><u>MQTT vs HTTP pro IoT<\/u><\/a><\/noindex>.<\/p>\n<h4>Dal\u0161\u00ed protokoly pro zas\u00edl\u00e1n\u00ed zpr\u00e1v<\/h4>\n<p>HTTP nebylo navr\u017eeno pro IoT aplikace, ale jak ji\u017e bylo zm\u00edn\u011bno, bude \u0161iroce pou\u017e\u00edv\u00e1no je\u0161t\u011b n\u011bjakou dobu d\u00edky jeho roz\u0161\u00ed\u0159en\u00e9mu pou\u017eit\u00ed v <noindex><a rel=\"nofollow\" href=\"http:\/\/www.steves-internet-guide.com\/iot-apis\/\"><u>API<\/u><\/a><\/noindex>.<\/p>\n<p>T\u00e9m\u011b\u0159 v\u0161echny IoT platformy podporuj\u00ed jak HTTP, tak MQTT.<\/p>\n<p>Existuj\u00ed v\u0161ak i jin\u00e9 protokoly, kter\u00e9 stoj\u00ed za zv\u00e1\u017een\u00ed.<\/p>\n<p>Protokoly<\/p>\n<ul>\n<li>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/MQTT\"><u>MQTT<\/u><\/a><\/noindex> \u2014 (Message Queuing Telemetry Transport). Pou\u017e\u00edv\u00e1 TCP\/IP. Pro model \u201evydavatel-odeb\u00edratel\u201c je vy\u017eadov\u00e1n zpravodajsk\u00fd broker.<\/p>\n<\/li>\n<li>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Advanced_Message_Queuing_Protocol\"><u>AMQP<\/u><\/a><\/noindex> \u2014 (Advanced Message Queuing Protocol). Pou\u017e\u00edv\u00e1 TCP\/IP. Modely \u201evydavatel-odeb\u00edratel\u201c a \u201ebod-bod\u201c.<\/p>\n<\/li>\n<li>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Constrained_Application_Protocol\"><u>COAP<\/u><\/a><\/noindex> \u2013 (Constrained Application Protocol). Pou\u017e\u00edv\u00e1 UDP. Bylo navr\u017eeno speci\u00e1ln\u011b pro IoT, pou\u017e\u00edv\u00e1 model dotazu-odpov\u011bdi jako v HTTP. <noindex><a rel=\"nofollow\" href=\"https:\/\/tools.ietf.org\/html\/rfc7252\"><u>RFC 7252<\/u><\/a><\/noindex>.<\/p>\n<\/li>\n<li>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Data_Distribution_Service\"><u>DDS<\/u><\/a><\/noindex> \u2013 (Data Distribution Service)&nbsp;<\/p>\n<\/li>\n<\/ul>\n<p>V t\u00e9to <noindex><a rel=\"nofollow\" href=\"http:\/\/electronicdesign.com\/iot\/understanding-protocols-behind-internet-things\"><u>\u010dl\u00e1nku<\/u><\/a><\/noindex> se zkoumaj\u00ed hlavn\u00ed protokoly a jejich aplikace. Z\u00e1v\u011br tohoto \u010dl\u00e1nku je, \u017ee IoT bude pou\u017e\u00edvat soubor protokol\u016f, v z\u00e1vislosti na jejich zam\u00fd\u0161len\u00e9m pou\u017eit\u00ed.<\/p>\n<p>Nicm\u00e9n\u011b, pokud se ohl\u00e9dneme zp\u011bt do prvn\u00edch let existence internetu, protokol HTTP, kter\u00fd se n\u00e1sledn\u011b stal dominantn\u00edm, byl pouze jedn\u00edm z mnoha protokol\u016f.<\/p>\n<p>A\u010dkoliv HTTP nebylo p\u016fvodn\u011b navr\u017eeno pro p\u0159enos soubor\u016f a e-mailu, dnes se pou\u017e\u00edv\u00e1 pro oboj\u00ed.<\/p>\n<p>O\u010dek\u00e1v\u00e1m, \u017ee v IoT s protokoly pro zas\u00edl\u00e1n\u00ed zpr\u00e1v se stane tot\u00e9\u017e: v\u011bt\u0161ina slu\u017eeb bude pou\u017e\u00edvat jeden p\u0159evl\u00e1daj\u00edc\u00ed protokol.<\/p>\n<p>N\u00ed\u017ee jsou grafy Google Trends, kter\u00e9 ukazuj\u00ed, jak se m\u011bnila popularita MQTT, COAP a AMQP v posledn\u00edch n\u011bkolika letech.<\/p>\n<h4>P\u0159ehled Google Trends&nbsp;<\/h4>\n<p><img decoding=\"async\" alt=\"P\u0159ehled s\u00ed\u0165ov\u00fdch protokol\u016f a protokol\u016f v\u00fdm\u011bny zpr\u00e1v pro IoT\" src=\"\/wp-content\/uploads\/2020\/10\/9770888f448395448ac30b407b648e18.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Podpora protokol\u016f na platform\u00e1ch<\/p>\n<ul>\n<li>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/docs.microsoft.com\/en-us\/azure\/iot-hub\/iot-hub-protocol-gateway\"><u>Microsoft Azure<\/u><\/a><\/noindex> \u2013 MQTT, AMQP, HTTP a HTTPS<\/p>\n<\/li>\n<li>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/docs.aws.amazon.com\/iot\/latest\/developerguide\/protocols.html\"><u>AWS<\/u><\/a><\/noindex> \u2013 MQTT, HTTPS, MQTT p\u0159es websockets<\/p>\n<\/li>\n<li>\n<p>IBM Bluemix \u2013 MQTT, HTTPS, MQTT<\/p>\n<\/li>\n<li>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.ni.com\/en-us\/innovations\/white-papers\/17\/a-practical-guide-for-connecting-labview-to-the-industrial-iot.html#section--269124710\"><u>Thingworx<\/u><\/a><\/noindex> \u2013 MQTT, HTTPS, MQTT, AMQP<\/p>\n<\/li>\n<\/ul>\n<h4>Shrnut\u00ed<\/h4>\n<p>Nejv\u00edce zm\u011bn se o\u010dek\u00e1v\u00e1 na kan\u00e1lov\u00e9 (\u00farovn\u011b 1 a 2) a aplika\u010dn\u00ed \u00farovni (\u00farove\u0148 4).<\/p>\n<p>S\u00ed\u0165ov\u00e9 a transportn\u00ed \u00farovn\u011b pravd\u011bpodobn\u011b z\u016fstanou beze zm\u011bny.<\/p>\n<p>Na aplika\u010dn\u00ed \u00farovni budou komponenty IoT pou\u017e\u00edvat protokoly pro v\u00fdm\u011bnu zpr\u00e1v. I kdy\u017e jsme st\u00e1le na za\u010d\u00e1tku v\u00fdvoje IoT, je velmi pravd\u011bpodobn\u00e9, \u017ee se vy\u010dlen\u00ed jeden nebo mo\u017en\u00e1 dva protokoly pro v\u00fdm\u011bnu zpr\u00e1v.<\/p>\n<p>B\u011bhem posledn\u00edch n\u011bkolika let se MQTT stal nejpopul\u00e1rn\u011bj\u0161\u00edm a na n\u011bj se nyn\u00ed zam\u011b\u0159uji na t\u00e9to str\u00e1nce.<\/p>\n<p>HTTP tak\u00e9 z\u016fstane v pou\u017e\u00edv\u00e1n\u00ed, proto\u017ee je ji\u017e dob\u0159e integrov\u00e1n do existuj\u00edc\u00edch IoT platforem.<\/p>\n<blockquote>\n<p>To je v\u0161e. Zveme v\u00e1s, abyste se p\u0159ihl\u00e1sili na bezplatnou demo lekci na t\u00e9ma <noindex><a rel=\"nofollow\" href=\"https:\/\/otus.pw\/dnQ0\/\">\u201eChatbot pro rychl\u00e9 p\u0159\u00edkazy za\u0159\u00edzen\u00ed\u201c<\/a><\/noindex>.<\/p>\n<\/blockquote>\n<h4>\u010c\u00edst v\u00edc:<\/h4>\n<ul>\n<li>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/otus\/blog\/521788\/\">Pro\u010d nezabezpe\u010den\u00e9 spot\u0159ebitelsk\u00e9 syst\u00e9my internetu v\u011bc\u00ed nyn\u00ed p\u0159edstavuj\u00ed v\u00e1\u017en\u00fd obchodn\u00ed probl\u00e9m<\/a><\/noindex><\/p>\n<\/li>\n<\/ul>\n<h2><\/h2>\n<\/p>\n<p>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/otus\/blog\/524140\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u0438\u0432\u0435\u0442, \u0445\u0430\u0431\u0440\u043e\u0432\u0447\u0430\u043d\u0435!&nbsp;\u041f\u0435\u0440\u0432\u044b\u0439 \u0432 \u0420\u043e\u0441\u0441\u0438\u0438 \u043e\u043d\u043b\u0430\u0439\u043d-\u043a\u0443\u0440\u0441 IoT-\u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a&nbsp;\u0441\u0442\u0430\u0440\u0442\u0443\u0435\u0442 \u0432 OTUS \u0443\u0436\u0435 \u0432 \u043e\u043a\u0442\u044f\u0431\u0440\u0435. \u041f\u0440\u044f\u043c\u043e \u0441\u0435\u0439\u0447\u0430\u0441 \u043e\u0442\u043a\u0440\u044b\u0442 \u043d\u0430\u0431\u043e\u0440 \u043d\u0430 \u043a\u0443\u0440\u0441, \u0432 \u0441\u0432\u044f\u0437\u0438 \u0441 \u0447\u0435\u043c \u043c\u044b \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u043c \u0434\u0435\u043b\u0438\u0442\u044c\u0441\u044f \u0441 \u0432\u0430\u043c\u0438 \u043f\u043e\u043b\u0435\u0437\u043d\u044b\u043c\u0438 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0430\u043c\u0438. \u0418\u043d\u0442\u0435\u0440\u043d\u0435\u0442 \u0432\u0435\u0449\u0435\u0439 (IoT, Internet of Things) \u0431\u0443\u0434\u0435\u0442 \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d \u043d\u0430 \u0431\u0430\u0437\u0435 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u0439 \u0441\u0435\u0442\u0435\u0432\u043e\u0439 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b, \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0439 \u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0445 \u0432 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u0432 \u0434\u043e\u043c\u0430\u0445\/\u043e\u0444\u0438\u0441\u0430\u0445 \u0438 \u0432 \u0418\u043d\u0442\u0435\u0440\u043d\u0435\u0442\u0435, \u0438 \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u0442 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":97699,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-97698","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u0438\u0432\u0435\u0442, \u0445\u0430\u0431\u0440\u043e\u0432\u0447\u0430\u043d\u0435!\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/cs\/blog\/administrirovanie\/obzor-setevyh-protokolov-i-protokolov-obmena-soobshheniyami-dlya-iot\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" 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