{"id":3566,"date":"2025-09-19T22:00:13","date_gmt":"2025-09-19T22:00:13","guid":{"rendered":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/?p=3566"},"modified":"2025-09-19T22:11:01","modified_gmt":"2025-09-19T22:11:01","slug":"thermoguard-power-thermal-control-for-ar-rf-operations","status":"publish","type":"post","link":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/?p=3566","title":{"rendered":"ThermoGuard: Power\u2013Thermal Control for AR RF Operations"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-spectrcyde wp-block-embed-spectrcyde\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"QsWuhWzrKf\"><a href=\"https:\/\/172-234-197-23.ip.linodeusercontent.com\/?page_id=3562\">ThermoGuard: Power\u2013Thermal Control for AR RF Operations<\/a><\/blockquote><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;ThermoGuard: Power\u2013Thermal Control for AR RF Operations&#8221; &#8212; Spectrcyde\" src=\"https:\/\/172-234-197-23.ip.linodeusercontent.com\/?page_id=3562&#038;embed=true#?secret=KgGf4vP21S#?secret=QsWuhWzrKf\" data-secret=\"QsWuhWzrKf\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Augmented reality (AR) and radio-frequency (RF)<br>sensing pipelines demand high frame rates and continuous<br>inference on mobile hardware. These workloads saturate the<br>CPU\/GPU, causing excessive heat, elevated power draw and<br>eventual thermal throttling, which in turn collapse situational<br>awareness (SA) in safety-critical missions. Dynamic voltage and<br>frequency scaling (DVFS) is a well-known technique that adjusts<br>voltage\u2013frequency levels at runtime to reduce heat generation<br>and power consumption [1]. However, conventional DVFS governors are application-agnostic and often fail to prevent thermal<br>throttling on mobile devices [1]. Moreover, virtual and augmented<br>reality tasks can push smartphone components past their thermal<br>design power by 20\u201380 % and raise CPU\/GPU temperatures<br>beyond 70 \u25e6C, leading to degraded performance and discomfort<br>[2].<br>This paper introduces ThermoGuard, a power\u2013thermal control<br>framework tailored for AR RF operations on wearables. ThermoGuard combines application-aware DVFS with an overlay throttling module that dynamically reduces the density of rendered<br>overlays to maintain mission utility while staying within thermal<br>budgets. Through step-load and hot-ambient experiments, we<br>show that ThermoGuard prevents thermal throttling on Jetson<br>Xavier NX and Pixel-8 hardware, sustaining median SA latencies<br>under 50 ms at &lt;1W while CPU temperatures remain below<br>70 \u25e6C. Compared with baseline governors, ThermoGuard improves end-to-end utility by 27 % under sustained high loads.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/mastodon.social\/@Bgilbert1984\"><img data-opt-id=1960255014  fetchpriority=\"high\" decoding=\"async\" width=\"1014\" height=\"920\" src=\"https:\/\/ml6vmqguit1n.i.optimole.com\/w:auto\/h:auto\/q:mauto\/f:best\/https:\/\/172-234-197-23.ip.linodeusercontent.com\/wp-content\/uploads\/2025\/09\/image-82.png\" alt=\"\" class=\"wp-image-3568\" srcset=\"https:\/\/ml6vmqguit1n.i.optimole.com\/w:1014\/h:920\/q:mauto\/f:best\/https:\/\/172-234-197-23.ip.linodeusercontent.com\/wp-content\/uploads\/2025\/09\/image-82.png 1014w, https:\/\/ml6vmqguit1n.i.optimole.com\/w:300\/h:272\/q:mauto\/f:best\/https:\/\/172-234-197-23.ip.linodeusercontent.com\/wp-content\/uploads\/2025\/09\/image-82.png 300w, https:\/\/ml6vmqguit1n.i.optimole.com\/w:768\/h:697\/q:mauto\/f:best\/https:\/\/172-234-197-23.ip.linodeusercontent.com\/wp-content\/uploads\/2025\/09\/image-82.png 768w\" sizes=\"(max-width: 1014px) 100vw, 1014px\" \/><\/a><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Augmented reality (AR) and radio-frequency (RF)sensing pipelines demand high frame rates and continuousinference on mobile hardware. These workloads saturate theCPU\/GPU, causing excessive heat, elevated power draw andeventual thermal throttling, which in turn collapse situationalawareness (SA) in safety-critical missions. Dynamic voltage andfrequency scaling (DVFS) is a well-known technique that adjustsvoltage\u2013frequency levels at runtime to reduce heat&hellip;&nbsp;<a href=\"https:\/\/172-234-197-23.ip.linodeusercontent.com\/?p=3566\" rel=\"bookmark\"><span class=\"screen-reader-text\">ThermoGuard: Power\u2013Thermal Control for AR RF Operations<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":3568,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[10],"tags":[],"class_list":["post-3566","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-signal_scythe"],"_links":{"self":[{"href":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/index.php?rest_route=\/wp\/v2\/posts\/3566","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3566"}],"version-history":[{"count":3,"href":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/index.php?rest_route=\/wp\/v2\/posts\/3566\/revisions"}],"predecessor-version":[{"id":3571,"href":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/index.php?rest_route=\/wp\/v2\/posts\/3566\/revisions\/3571"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/index.php?rest_route=\/wp\/v2\/media\/3568"}],"wp:attachment":[{"href":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3566"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3566"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/172-234-197-23.ip.linodeusercontent.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3566"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}