{"version":"1.0","provider_name":"Learn CCTV.com","provider_url":"https:\/\/learncctv.com","author_name":"Claudemir Martins","author_url":"https:\/\/learncctv.com\/author\/claudemir-martinsgmail-com\/","title":"How do security camera systems work - Learn CCTV.com","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"miVnvIHjx7\"><a href=\"https:\/\/learncctv.com\/how-do-security-camera-systems-work\/\">How do security camera systems work<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/learncctv.com\/how-do-security-camera-systems-work\/embed\/#?secret=miVnvIHjx7\" width=\"600\" height=\"338\" title=\"&#8220;How do security camera systems work&#8221; &#8212; Learn CCTV.com\" data-secret=\"miVnvIHjx7\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/learncctv.com\/wp-content\/uploads\/2019\/04\/Security-system-surveillance-station.jpg","thumbnail_width":654,"thumbnail_height":648,"description":"A surveillance system sends the videos from the security cameras installed in different places to a monitoring center where it is possible to monitor everything in real time and record the footage to have evidence. It works in different situations, from home monitoring to applications with thousands of cameras installed in cities, factories, hospitals, schools, [&hellip;]"}