{"id":1052,"date":"2025-04-23T02:30:16","date_gmt":"2025-04-23T09:30:16","guid":{"rendered":"https:\/\/www.redstoneota.com\/?p=1052"},"modified":"2025-04-23T02:48:12","modified_gmt":"2025-04-23T09:48:12","slug":"how-redstone-ota-shrinks-error-logs-by-90-in-vehicle-ecu-updates","status":"publish","type":"post","link":"http:\/\/www.redstoneota.com\/ja\/how-redstone-ota-shrinks-error-logs-by-90-in-vehicle-ecu-updates\/","title":{"rendered":"Redstone OTA\u306b\u3088\u308b\u30a8\u30e9\u30fc\u30ed\u30b0\u306e\u524a\u6e1b\u65b9\u6cd5 by 90% in \u8eca\u4e21ECU\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>The Background: <a>Detailed error Logs are required in ECU updates<\/a><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Over-the-air_update\" target=\"_blank\" rel=\"noopener\">Over-the-air (OTA)<\/a> software updates are revolutionizing the automotive industry, enabling automakers to deliver new features, performance improvements, and security patches remotely. However, when an <a href=\"https:\/\/en.wikipedia.org\/wiki\/Electronic_control_unit\" target=\"_blank\" rel=\"noopener\">ECU\uff08\u96fb\u5b50\u5236\u5fa1\u30e6\u30cb\u30c3\u30c8\uff09<\/a> update fails, diagnosing the issue requires detailed network logs\u2014often resulting in excessively large files that are difficult to manage and analyze.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At\u00a0<strong><a href=\"https:\/\/www.redstoneota.com\/ja\/\">\u30ec\u30c3\u30c9\u30b9\u30c8\u30fc\u30f3OTA<\/a><\/strong>, we understand the challenges of handling these logs efficiently. In this blog, we explore why reducing ECU update error log sizes is critical and how our solution simplifies the process.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>The Challenge: Large Log Files in Vehicle OTA Updates<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When an ECU update fails, diagnostic tools like\u00a0<strong><a href=\"https:\/\/en.wikipedia.org\/wiki\/Tcpdump\" target=\"_blank\" rel=\"noopener\">tcpdump<\/a><\/strong>\u00a0capture network communication, including <a href=\"https:\/\/www.keysight.com\/blogs\/en\/tech\/nwvs\/2023\/04\/20\/doip-remote-diagnosis-protocol-for-smart-cars\" target=\"_blank\" rel=\"noopener\">DoIP (Diagnostics over IP)<\/a> messages. These logs are essential for troubleshooting but come with significant drawbacks:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1.&nbsp;<strong>Massive File Sizes<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A single OTA session with multiple ECUs can generate\u00a0<strong>hundreds of megabytes<\/strong>\u00a0of logs.<\/li>\n\n\n\n<li>Storing and transferring these files consumes bandwidth and storage unnecessarily.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2.&nbsp;<strong>Difficulty in Identifying Relevant Data<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Most captured logs are from\u00a0<strong>successful<\/strong>\u00a0operations\u2014only a small fraction contains error-related data.<\/li>\n\n\n\n<li>Engineers waste time sifting through irrelevant packets to find failure causes.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3.&nbsp;<strong>Slow Uploads to Cloud Servers<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Large log files take longer to upload, delaying issue resolution.<\/li>\n\n\n\n<li>In regions with poor connectivity, uploads may fail entirely.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">4.&nbsp;<strong>Storage Overhead on Edge Devices<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vehicles and diagnostic tools have limited storage\u2014excessive logs can fill up memory quickly.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How Redstone OTA Solves the Problem: Smart Log Filter<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Redstone OTA introduces an&nbsp;<strong>intelligent log filtering mechanism<\/strong>&nbsp;that drastically reduces log file sizes while preserving critical diagnostic data. Here\u2019s how it works:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1.&nbsp;<strong>Smart Log Capture with Timestamp-Based Segmentation<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Instead of one large log file, our system splits logs into\u00a0<strong>timestamp-based segments<\/strong>\u00a0(e.g., one file per minute).<\/li>\n\n\n\n<li>Each file is timestamped, making it easy to correlate with ECU update events.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2.&nbsp;<strong>Automatic Error Time Tracking<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>When an ECU update fails, the system records the\u00a0<strong>exact timestamp<\/strong>\u00a0of the failure.<\/li>\n\n\n\n<li>Additional metadata (ECU ID, error phase, and session details) is stored for context.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3.&nbsp;<strong>Precise Log Filtering Before Upload<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>After the update process, the system\u00a0<strong>traverses all log segments<\/strong>.<\/li>\n\n\n\n<li>Only when the timestamps of log files <strong>overlap with recorded error timestamps, <\/strong>the files\u00a0are retained as error log files.<\/li>\n\n\n\n<li>Irrelevant logs (from successful operations) are\u00a0<strong>automatically discarded<\/strong>.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">4.&nbsp;<strong>Efficient Compression &amp; Upload<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The filtered logs are compressed into a\u00a0<strong>smaller ZIP file<\/strong>.<\/li>\n\n\n\n<li>Uploads are faster and more reliable, even in low-bandwidth conditions.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Benefits of Redstone OTA\u2019s Approach<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Reduced Log Size (Up to 90% Smaller)<\/strong>: Only error-related network traffic is kept, minimizing storage and bandwidth usage.<\/li>\n\n\n\n<li><strong>Faster Debugging for Engineers<\/strong>: Developers receive\u00a0<strong>only relevant logs<\/strong>, speeding up root cause analysis.<\/li>\n\n\n\n<li><strong>Lower Storage &amp; Bandwidth Costs<\/strong>: Fewer logs mean\u00a0<strong>reduced cloud storage expenses<\/strong>\u00a0and\u00a0<strong>faster uploads<\/strong>.<\/li>\n\n\n\n<li><strong>Scalable for Large Fleets<\/strong>: Even vehicles with\u00a0<strong>dozens of ECUs<\/strong>\u00a0generate manageable log sizes.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u7d50\u8ad6<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Managing ECU update error logs doesn\u2019t have to mean dealing with massive, unwieldy files.&nbsp;<strong>Redstone OTA\u2019s intelligent log filtering<\/strong>&nbsp;ensures that only the most critical diagnostic data is retained\u2014saving time, storage, and bandwidth while accelerating issue resolution.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By adopting our solution, automakers and fleet operators can\u00a0<strong>streamline OTA updates<\/strong>, reduce troubleshooting overhead, and deliver a\u00a0<strong>more reliable <a href=\"https:\/\/www.cisa.gov\/secure-our-world\/update-software\" target=\"_blank\" rel=\"noopener\">\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30fb\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8<\/a> experience<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Interested in optimizing your vehicle ECU OTA update process? Contact <a href=\"http:\/\/www.redstoneota.com\/ja\/\">\u30ec\u30c3\u30c9\u30b9\u30c8\u30fc\u30f3OTA <\/a>today to learn more!<\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>\u8eca\u4e21\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306b\u304a\u3051\u308bECU\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u4e0d\u5177\u5408\u306f\u3001\u81a8\u5927\u3067\u89e3\u6790\u304c\u56f0\u96e3\u306a\u30ed\u30b0\u30d5\u30a1\u30a4\u30eb\u3092\u751f\u6210\u3057\u3001\u8a3a\u65ad\u306e\u59a8\u3052\u3068\u306a\u308a\u307e\u3059\u3002Redstone OTA\u306f\u3001\u30b9\u30de\u30fc\u30c8\u306a\u30ed\u30b0\u30bb\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3001\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u30d9\u30fc\u30b9\u306e\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3001\u5727\u7e2e\u306b\u3088\u308a\u3001\u91cd\u8981\u306a\u8a3a\u65ad\u30c7\u30fc\u30bf\u3092\u4fdd\u6301\u3057\u306a\u304c\u3089\u30a8\u30e9\u30fc\u30ed\u30b0\u30b5\u30a4\u30ba\u309290%\u524a\u6e1b\u3057\u3001\u3053\u308c\u3092\u89e3\u6c7a\u3057\u307e\u3059\u3002<\/p>","protected":false},"author":2,"featured_media":1053,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[5],"tags":[89,187,164,90],"class_list":["post-1052","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-ecu-updates","tag-error-logs","tag-over-the-air-updates-2","tag-vehicle-software-updates"],"_links":{"self":[{"href":"http:\/\/www.redstoneota.com\/ja\/wp-json\/wp\/v2\/posts\/1052","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.redstoneota.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.redstoneota.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.redstoneota.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.redstoneota.com\/ja\/wp-json\/wp\/v2\/comments?post=1052"}],"version-history":[{"count":1,"href":"http:\/\/www.redstoneota.com\/ja\/wp-json\/wp\/v2\/posts\/1052\/revisions"}],"predecessor-version":[{"id":1054,"href":"http:\/\/www.redstoneota.com\/ja\/wp-json\/wp\/v2\/posts\/1052\/revisions\/1054"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.redstoneota.com\/ja\/wp-json\/wp\/v2\/media\/1053"}],"wp:attachment":[{"href":"http:\/\/www.redstoneota.com\/ja\/wp-json\/wp\/v2\/media?parent=1052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.redstoneota.com\/ja\/wp-json\/wp\/v2\/categories?post=1052"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.redstoneota.com\/ja\/wp-json\/wp\/v2\/tags?post=1052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}