{"id":20590,"date":"2022-04-26T09:42:18","date_gmt":"2022-04-26T01:42:18","guid":{"rendered":"https:\/\/hongtronics.com\/?p=20590"},"modified":"2024-07-11T13:16:14","modified_gmt":"2024-07-11T05:16:14","slug":"hivemq-mqtt-broker-iav","status":"publish","type":"post","link":"https:\/\/hongtronics.com\/en\/hivemq-mqtt-broker-iav\/","title":{"rendered":"HiveMQ Case Study: Building an Urban Flash Flood Alert System with Vehicle Data"},"content":{"rendered":"<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"560\" src=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T091753.112-1024x560.png\" alt=\"\" class=\"wp-image-20591\" srcset=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T091753.112-1024x560.png 1024w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T091753.112-300x164.png 300w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T091753.112-600x328.png 600w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T091753.112-768x420.png 768w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T091753.112.png 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">preamble<\/h2>\n\n\n\n<p class=\"has-medium-font-size\">IAV\uff08Ingenieurgesellschaft Auto und Verkehr GmbH\uff09\u662f\u4e00\u5bb6\u5c08\u9580\u70ba\u6c7d\u8eca\u884c\u696d\u958b\u767c\u5275\u65b0\u89e3\u6c7a\u65b9\u6848\u7684\u4f01\u696d\uff0c\u5728\u5fb7\u570b\u672c\u571f\u64c1\u6709\u591a\u8655\u7814\u767c\u4e2d\u5fc3\uff0c\u4e14\u5728\u6b50\u6d32\u3001\u4e9e\u6d32\u3001\u5357\u5317\u7f8e\u6d32\u7b49\u5747\u8a2d\u6709\u5206\u652f\u6a5f\u69cb\uff0c\u662f\u6c7d\u8eca\u5de5\u7a0b\u670d\u52d9\u7684\u9818\u5148\u4f9b\u61c9\u5546\u4e4b\u4e00\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">I. Case background<\/h2>\n\n\n\n<p class=\"has-medium-font-size\">IAV \u8207 FiW\uff08\u4e9e\u741b\u5de5\u696d\u5927\u5b78\u6c34\/\u5ee2\u6c34\u7ba1\u7406\u7814\u7a76\u6240\uff09\u3001EG\/LV\uff08\u57c3\u59c6\u820d\u723e\u6cb3\/\u5229\u73c0\u6cb3\u7684\u5340\u57df\u6c34\u52d9\u7576\u5c40\uff09\u5408\u4f5c\u958b\u5c55\u4e86\u4e00\u500b\u7814\u767c\u9805\u76ee\uff0c\u4ee5\u5275\u5efa\u4e00\u500b\u53ef\u4ee5\u9810\u6e2c\u7531\u66b4\u96e8\u9020\u6210\u57ce\u5e02\u6d2a\u6c34\u7684\u9810\u8b66\u7cfb\u7d71\u3002\u8a72\u9805\u76ee\u64ec\u4f7f\u7528\u6c7d\u8eca\u4e2d\u7684\u96e8\u6c34\u8207\u74b0\u5883\u50b3\u611f\u5668\u7684\u6578\u64da\uff0c\u4f86\u8a18\u9304\u7279\u5b9a\u6642\u9593\u6bb5\u5167\u7279\u5b9a\u4f4d\u7f6e\u7684\u964d\u96e8\u91cf\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">II. Problems Ahead<\/h2>\n\n\n\n<p class=\"has-medium-font-size\">\u5728\u5fb7\u570b\uff0c\u5e74\u5e73\u5747\u964d\u96e8\u91cf\u7d04\u70ba 800 L\/\u33a1\uff0c\u800c 2017 \u5e74 6 \u6708 29 \u65e5\uff0c\u5728\u5fb7\u570b\u67cf\u6797\u6cf0\u683c\u723e\u5340\uff0c\u50c5\u50c5\u4e00\u5929\u5c31\u9054\u5230\u4e86\u8fd1 200 L\/\u33a1 \u7684\u964d\u96e8\u91cf\u3002\u7531\u65bc\u5f37\u964d\u96e8\u9020\u6210\u7684\u5c71\u6d2a\u66b4\u767c\u8d8a\u4f86\u8d8a\u983b\u7e41\uff0c\u56b4\u91cd\u964d\u96e8\u53ef\u80fd\u5c0d\u57ce\u5e02\u57fa\u790e\u8a2d\u65bd\u9020\u6210\u5927\u7bc4\u570d\u7834\u58de\uff0c\u751a\u81f3\u9020\u6210\u5c45\u6c11\u50b7\u4ea1\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"750\" height=\"500\" src=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T091928.259.png\" alt=\"\" class=\"wp-image-20592\" srcset=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T091928.259.png 750w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T091928.259-300x200.png 300w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T091928.259-600x400.png 600w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure><\/div>\n\n\n\n<p class=\"has-medium-font-size\">\u4e00\u500b\u80fd\u5920\u5c31\u5c40\u90e8\u66b4\u96e8\u4e8b\u4ef6\u5411\u7576\u5c40\u767c\u51fa\u8b66\u544a\u7684\u7cfb\u7d71\u5f80\u5f80\u80fd\u5920\u5c07\u4e8b\u4ef6\u7684\u5f71\u97ff\u964d\u81f3\u6700\u4f4e\uff0c\u7136\u800c\u96e3\u9ede\u96a8\u4e4b\u800c\u4f86\uff1a\u5f37\u964d\u96e8\u5f80\u5f80\u767c\u751f\u5728\u5c0f\u7bc4\u570d\u5167\uff0c\u800c\u901a\u5e38\u964d\u96e8\u9810\u5831\u6db5\u84cb\u8f03\u5927\u7684\u5730\u7406\u5340\u57df\uff0c\u56e0\u6b64\u7570\u5e38\u964d\u96e8\u7684\u9810\u6e2c\u5177\u6709\u4e00\u5b9a\u7684\u96e3\u5ea6\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">III. Solutions<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote has-medium-font-size is-layout-flow wp-block-quote-is-layout-flow\"><p>\u6b64\u6b21\u9805\u76ee\u4f7f\u7528\u6c7d\u8eca\u4e2d\u7684\u96e8\u91cf\u50b3\u611f\u5668\u4f86\u5e6b\u52a9\u5411\u5730\u65b9\u7576\u5c40\u767c\u51fa\u5927\u96e8\u4e8b\u4ef6\u7684\u8b66\u544a\uff0c\u4e4b\u5f8c\uff0c\u53ef\u4ee5\u5c07\u4f86\u81ea\u6c7d\u8eca\u7279\u5b9a\u4f4d\u7f6e\u7684\u7684\u96e8\u91cf\u50b3\u611f\u5668\u4e2d\u7684\u6578\u64da\u8207\u5f9e\u7576\u5730\u6c23\u8c61\u7ad9\u548c\u96f7\u9054\u5730\u5716\u6536\u96c6\u7684\u6578\u64da\u76f8\u7d50\u5408\uff0c\u5be6\u73fe\u66b4\u96e8\u4e8b\u4ef6\u4f4d\u7f6e\u7684\u53ef\u8996\u5316\u3002<\/p><p>\u50b3\u7d71\u7684\u5929\u6c23\u96f7\u9054\u5730\u5716\u53ef\u63d0\u4f9b\u7684\u5206\u8fa8\u7387\u53ea\u6709\u4e00\u5e73\u65b9\u516c\u91cc\uff0c\u800c\u7d50\u5408\u4f86\u81ea\u6c7d\u8eca\u6578\u64da\u63d0\u4f9b\u7684\u8a0a\u606f\u53ef\u4ee5\u7cbe\u78ba\u5230\u5e73\u65b9\u7c73\u7bc4\u570d\uff0c\u5206\u8fa8\u7387\u7684\u63d0\u9ad8\u70ba\u5730\u65b9\u7576\u5c40\u63d0\u4f9b\u4e86\u66f4\u6e96\u78ba\u7684\u5730\u5716\u3002<\/p><p><\/p><cite> IAV \u958b\u767c\u5de5\u7a0b\u5e2bSven Holzendorf<\/cite><\/blockquote>\n\n\n\n<p class=\"has-medium-font-size\">IAV \u958b\u767c\u5718\u968a\u9996\u5148\u5728\u672c\u5730\u958b\u767c\u6a5f\u5668\u4e0a\u90e8\u7f72\u4e86\u958b\u6e90\u7684 Mosquitto MQTT Broker\u3002\u7136\u800c\uff0c\u9019\u53ea\u80fd\u6210\u70ba\u4e00\u500b\u77ed\u671f\u89e3\u6c7a\u65b9\u6848\uff0c\u56e0\u70ba Mosquitto \u7121\u6cd5\u63d0\u4f9b\u53ef\u9760\u7684\u904b\u884c\u670d\u52d9\u3002\u7d93\u8207 IT \u90e8\u9580\u5354\u5546\uff0cIAV \u6c7a\u5b9a\u4f7f\u7528 HiveMQ \u4f5c\u70ba\u5176 MQTT Broker \u65b9\u6848\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"559\" height=\"298\" src=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092647.414.png\" alt=\"\" class=\"wp-image-20593\" srcset=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092647.414.png 559w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092647.414-300x160.png 300w\" sizes=\"(max-width: 559px) 100vw, 559px\" \/><\/figure>\n\n\n\n<p class=\"has-medium-font-size\">HiveMQ \u76f8\u5c0d\u66f4\u5177\u53ef\u9760\u6027\u3001\u9ad8\u53ef\u7528\u6027\uff0c\u4e14\u652f\u6301\u96c6\u7fa4\uff0c\u4e14 IAV \u9700\u8981\u7684\u662f\u4e00\u500b\u53ef\u4ee5\u540c\u6642\u652f\u6301\u591a\u500b\u9805\u76ee\u7684\u4f01\u696d\u7d1a MQTT \u4ee3\u7406\uff0cHiveMQ \u6709\u6548\u5730\u6eff\u8db3\u4e86 IAV \u958b\u767c\u5718\u968a\u7684\u9019\u4e9b\u9700\u6c42\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u65b9\u6848\u6210\u6548<\/h2>\n\n\n\n<p class=\"has-medium-font-size\">HiveMQ is a communication platform based on MQTT data transfer.<strong>Designed to deliver data quickly, efficiently and reliably to connected IoT devices<\/strong>HiveMQ uses the MQTT protocol for real-time, bi-directional data push between devices and the enterprise platform.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"428\" src=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092808.376-1024x428.jpg\" alt=\"\" class=\"wp-image-20594\" srcset=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092808.376-1024x428.jpg 1024w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092808.376-300x125.jpg 300w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092808.376-600x251.jpg 600w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092808.376-768x321.jpg 768w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092808.376.jpg 1062w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-medium-font-size\">HiveMQ was built to address some of the key technical challenges that organizations face when building new IoT applications, including:<\/p>\n\n\n\n<ul class=\"has-medium-font-size wp-block-list\"><li>Building reliable and scalable business-critical Internet of Things applications<\/li><li>Fast data delivery to meet end-user expectations for responsive IoT products<\/li><li>\u900f\u904e\u6709\u6548\u5229\u7528\u786c\u9ad4\u3001\u7db2\u8def\u548c\u96f2\u8cc7\u6e90\u964d\u4f4e\u904b\u71df\u6210\u672c<\/li><li>Integrate IoT data into existing enterprise systems<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"521\" height=\"413\" src=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092839.492.jpg\" alt=\"\" class=\"wp-image-20595\" srcset=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092839.492.jpg 521w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092839.492-300x238.jpg 300w\" sizes=\"(max-width: 521px) 100vw, 521px\" \/><\/figure><\/div>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<p class=\"has-medium-font-size\">HiveMQ provides<strong>Free version<\/strong>\u3001<strong>Professional Edition<\/strong>\u3001<strong>Enterprise Edition<\/strong>MQTT Broker product with Kafka, Enterprise Security and MQTT Broker Bridge<strong>Three Enterprise Extension Packs<\/strong>HiveMQ also provides an efficient MQTT client and cloud platform to fulfill user needs in various aspects.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"434\" src=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092945.114-1024x434.jpg\" alt=\"\" class=\"wp-image-20596\" srcset=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092945.114-1024x434.jpg 1024w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092945.114-300x127.jpg 300w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092945.114-600x254.jpg 600w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092945.114-768x326.jpg 768w, https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T092945.114.jpg 1080w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/01\/\u5b8f\u8679\u8cc7\u8a0a\u5361-1024x576.png\" alt=\"\" class=\"wp-image-17585\"\/><figcaption>Contact Us<\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 IAV\uff08Ingenieurgesellschaft Auto und Verkehr GmbH\uff09\u662f\u4e00\u5bb6\u5c08 [&hellip;]<\/p>","protected":false},"author":29,"featured_media":20597,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"minimal","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","iawp_total_views":20,"ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"off","ocean_gallery_id":[],"footnotes":""},"categories":[1824],"tags":[1617],"table_tags":[],"class_list":["post-20590","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iiot","tag-hivemq","entry","has-media","owp-thumbs-layout-horizontal","owp-btn-normal","owp-tabs-layout-horizontal","has-no-thumbnails","has-product-nav"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/hongtronics.com\/wp-content\/uploads\/2022\/04\/640-2022-04-26T091753.112-1.jpg","_links":{"self":[{"href":"https:\/\/hongtronics.com\/en\/wp-json\/wp\/v2\/posts\/20590","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hongtronics.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hongtronics.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hongtronics.com\/en\/wp-json\/wp\/v2\/users\/29"}],"replies":[{"embeddable":true,"href":"https:\/\/hongtronics.com\/en\/wp-json\/wp\/v2\/comments?post=20590"}],"version-history":[{"count":1,"href":"https:\/\/hongtronics.com\/en\/wp-json\/wp\/v2\/posts\/20590\/revisions"}],"predecessor-version":[{"id":20598,"href":"https:\/\/hongtronics.com\/en\/wp-json\/wp\/v2\/posts\/20590\/revisions\/20598"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hongtronics.com\/en\/wp-json\/wp\/v2\/media\/20597"}],"wp:attachment":[{"href":"https:\/\/hongtronics.com\/en\/wp-json\/wp\/v2\/media?parent=20590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hongtronics.com\/en\/wp-json\/wp\/v2\/categories?post=20590"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hongtronics.com\/en\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