{"id":128,"date":"2021-02-09T13:01:18","date_gmt":"2021-02-09T12:01:18","guid":{"rendered":"http:\/\/projects.dimes.unical.it\/spine-bok\/?page_id=128"},"modified":"2021-02-12T17:20:06","modified_gmt":"2021-02-12T16:20:06","slug":"spine-hrv","status":"publish","type":"page","link":"https:\/\/projects.dimes.unical.it\/spine-bok\/prototypes\/spine-hrv\/","title":{"rendered":"Mental Stress Detector"},"content":{"rendered":"\n<p>Heart rate variability (HRV) is among the most promising markers for the detection of mental stress. HRV represents the variations in the beat-to-beat alteration in the heart rate. <\/p>\n\n\n\n<p>We have realized a prototype system based on a custom sensor board (named <strong>CardioShield<\/strong>) with a specific receiver for a wireless chest belt (produced by Polar Electro) detecting heart beats. The board is mounted on a standard TelosB mote running<br>SPINE, customized with a specific processing function that computes the inter-beat time interval. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1201\" height=\"885\" src=\"http:\/\/projects.dimes.unical.it\/spine-bok\/wp-content\/uploads\/sites\/3\/2021\/02\/image-4.png\" alt=\"\" class=\"wp-image-294\" \/><\/figure>\n\n\n\n<p>The prototype running on the SPINE coordinator receives these timed events and performs an HRV analysis by extracting time-domain features on the inter-beat times over a 10-min window. Then, these features are fed to a threshold-based classifier to detect the mental stress condition of the subject.<\/p>\n\n\n\n<h4>Reference paper<\/h4>\n\n\n\n<p>A. Andreoli, R. Gravina, R. Giannantonio, P. Pierleoni, and G. Fortino. SPINE-HRV: a BSN-based toolkit for heart rate variability analysis in the time-domain.\u00a0<em>Wearable and Autonomous Biomedical Devices and Systems: New issues and Characterization &#8211; Lecture Notes on Electrical Engineering<\/em>, 75:369-389, 2010.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Heart rate variability (HRV) is among the most promising markers for the detection of mental stress. HRV represents the variations in the beat-to-beat alteration in the heart rate. We have &#8230;<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":22,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/projects.dimes.unical.it\/spine-bok\/wp-json\/wp\/v2\/pages\/128"}],"collection":[{"href":"https:\/\/projects.dimes.unical.it\/spine-bok\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/projects.dimes.unical.it\/spine-bok\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/projects.dimes.unical.it\/spine-bok\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/projects.dimes.unical.it\/spine-bok\/wp-json\/wp\/v2\/comments?post=128"}],"version-history":[{"count":4,"href":"https:\/\/projects.dimes.unical.it\/spine-bok\/wp-json\/wp\/v2\/pages\/128\/revisions"}],"predecessor-version":[{"id":295,"href":"https:\/\/projects.dimes.unical.it\/spine-bok\/wp-json\/wp\/v2\/pages\/128\/revisions\/295"}],"up":[{"embeddable":true,"href":"https:\/\/projects.dimes.unical.it\/spine-bok\/wp-json\/wp\/v2\/pages\/22"}],"wp:attachment":[{"href":"https:\/\/projects.dimes.unical.it\/spine-bok\/wp-json\/wp\/v2\/media?parent=128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}