Tutorials (187)

Displaying 'tutorials' tags 51 - 75 of 187 in total

Burglar Alarm Strobes Guide

(Member Only)

Strobes provide visual notification of alarm incidents, as sirens are used to give audible notification. Using a strobe gives alarm users and alarm responders another way confirm alarms when they cannot hear the sirens. In this note, we examine ho...

By Ari Erenthal - over 3 years ago

Burglar Alarm Sirens Guide

(Member Only)

Sirens are used to alert users to an alarm condition. In this note, we examine how to choose, locate, and install alarm sirens, including Siren versus speaker Form factors - surface mount, flush mount, horns, self contained sirens, armored sir...

By Ari Erenthal - over 3 years ago

Glass Break Sensor Tutorial

(Member Only)

Burglars often break glass windows to get into a house. Using glass break detectors in conjunction with alarm contacts is a good way to protect the entire perimeter of a building. In this note, we examine glass break detectors, including Shock...

By Ari Erenthal - over 3 years ago

Alarm Panic Switches Tutorial

Panic switches allow silently triggering an alarm system when it is otherwise disarmed. In this tutorial we explain and contrast the 7 most common types, including: Covered Switch / Hold Up Emergency Button Latching Switch Wireless Keyfob F...

By Ari Erenthal - over 3 years ago

Environmental Sensors For Burglar Alarm Tutorials

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Intrusion detection systems can be used to alert users to environmental issues. By connecting sensors that monitor the heat, humidity, and moisture, alarm subscribers can be alerted to potential problems before they grow worse. In this tutorial, w...

By Ari Erenthal - over 3 years ago

Alarm Contacts Tutorial

(Member Only)

Contacts are the devices that tell an alarm panel when an entryway is open or closed. The act of opening or closing an entryway, such as a door or window, causes a physical change in the contact. This in turn changes the state of the circuit to wh...

By Ari Erenthal - over 3 years ago

Alarm Motion Detector Tutorial

(Member Only)

Sensors designed to detect movement are a good way to protect large, open areas. In this tutorial, we examine motion detectors, including: Passive infrared (PIR) detection Microwave detection Dual technology detectors Movement profiles Dete...

By Ari Erenthal - over 3 years ago

Alarm Panels - Canned vs Integrated

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Alarm control panels generally come in one of two types: Integrated alarm controllers, with controls and the keypad in the same device Traditional 'canned' control panels The advantages of 'canned' control panels typically include: Roo...

By Ari Erenthal - over 3 years ago

Surveillance Cameras 2017 Overview

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This report concisely explains the developments and most common options for surveillance cameras offered in 2017, including resolution, H.265, HD analog, image quality, video analytics and cost. Compared to surveillance camera developments in 201...

By John Honovich - almost 4 years ago

Lux Rating / Minimum Illumination Guide

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Lux ratings are one of the poorest specifications to use in selecting cameras. Now, with the rise of integrated IR, they are increasingly useless. You need to be able to understand why lux rating (aka minimum illumination specifications) are so p...

By IPVM Team - almost 4 years ago

The PPF / PPM Video Surveillance Guide

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Pixels per foot / Pixels per meter is the most fundamental and valuable, though imperfect, metric for specifying video surveillance image quality. In a single number, this metric (e.g., 10ppf, 40ppf, 100ppf) conveys important information about wh...

By IPVM Team - almost 4 years ago

Surveillance Camera Imager Tutorial

(Member Only)

Imagers - CCD, CMOS, 1/2", 1/4", big pixels, small pixels, etc. In this tutorial, we explain the fundamental issues and drivers in surveillance camera imagers, including: Sensor vs Imager CCD vs CMOS Imager Manufacturers Camera Manufacturer...

By IPVM Team - almost 4 years ago

API / SDK Tutorial

(Member Only)

While Application Programming Interfaces (APIs) are key to 'open' platforms, they are frequently misunderstood and over-hyped in physical security. While APIs can provide great benefits, using them is much more complex than often mentioned in sale...

By John Honovich - almost 4 years ago

F-Stop Tutorial

(Member Only)

To understand low light surveillance, appreciating the importance and role of the f-stop metric is critical. In this tutorial, we explain: Why minidomes and other small form factor cameras typically have far worse f numbers How the range of a ...

By IPVM Team - almost 4 years ago

Video Surveillance Bandwidth Guide

(Member Only)

Bandwidth is one of the most fundamental, complex and overlooked aspects of video surveillance. Many simply assume it is a linear function of resolution and frame rate. Not only is that wrong, it misses a number of other critical elements and fai...

By IPVM Team - almost 4 years ago

Power Drill Selection Guide

(Member Only)

Boring holes is a basic part of running cables for most security system projects. To do so, you will need to choose the right drills for various scenarios. This guide will help you understand the different types of drills available and the tradeo...

By Ari Erenthal - almost 4 years ago

Shutter Speed / Exposure Tutorial

Surveillance users do not need to be photography experts but understanding the basics of shutter speed is critical to avoiding major low light problems. In low light conditions, surveillance video can appear blurry and objects will look like ghost...

By IPVM Team - almost 4 years ago

Solutions to 5 Common Access Control Problems

(Member Only)

Effective security is more than just good equipment. In fact, thousands of dollars in electronic access control can be wasted if they are not used properly. In many cases, proper operational controls fail to be implemented and enforced. In IPVM's...

By Brian Rhodes - almost 4 years ago

Intrusion Motion Sensors Tutorial

(Member Only)

Motion sensors are one of the most common, and most useful alarm sensors, but they also often cause problems. Many motion sensors types exist and their suitability vary across applications. As such, knowing the differences in types and what impact...

By Brian Rhodes - about 4 years ago

VLANs for Video Surveillance Tutorial

(Member Only)

Many people confidently say to 'use VLANs' as an answer to IP video networking problems and as a way to signal expertise. But how should VLANs be used? What benefits do they really deliver or not? In the note, we examine: Segmentation of ap...

By John Scanlan - about 4 years ago

How to Measure Video Quality / Compression Levels

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Two cameras have the same resolution, frame rate and scene monitored but camera A consumes half the bandwidth than camera B. Is Camera A better? You cannot tell until you first check / compare compression levels. It can be hard to determine which...

By Ethan Ace - about 4 years ago

PTZ Camera Guide 2016

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Pan/Tilt/Zoom cameras remain critical parts of many surveillance systems, especially in large security operations. Because of this it is important to understand and consider the key elements in selecting and using PTZ cameras. In this guide we co...

By Ethan Ace - about 4 years ago

Fisheye Panoramic Camera Guide

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Fisheye panoramics have become widespread, with most manufacturers offering fisheyes. However, with many options, it can be confusing to understand the tradeoffs. In this guide, we explain: Why Panoramic Camers Fisheye Panoramic Basics 'Warp...

By Ethan Ace - about 4 years ago

Cameras Mounted On Poles Primer

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Poles are a popular but challenging choice for deploying surveillance cameras. Poles are indispensable for putting cameras at the right height to get the best picture and for keeping cameras out of harm's way. However, mounting cameras on poles c...

By Brian Rhodes - about 4 years ago

IP Scanners for Video Surveillance

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IP scanners, tools like Advanced IP Scanner, Angry IP Scanner and Fing, can be useful for setting up and managing video surveillance systems. In this tutorial, we explain their uses, limitations, comparisons to vendor specific ones and conclude wi...

By Ethan Ace - over 4 years ago

Displaying 'tutorials' tags 51 - 75 of 187 in total