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DGA Security Blog

Our business security and fire systems experts answer the most frequently asked questions, no holds barred. Read on.

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Video Surveillance | Security Terms

By: Isabel Leckie
October 19th, 2023

A wide-angle lens is a camera lens with a short focal length, providing a broad field of view. It captures a wider perspective, making it suitable for surveillance applications for more expansive spaces like parking lots, where capturing a wide field of view is important for comprehensive surveillance coverage.

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Video Surveillance | Security Terms

By: Isabel Leckie
October 12th, 2023

A telephoto lens is a type of camera lens with a long focal length, allowing for magnification and capturing distant subjects in detail. It has a narrow field of view, which results in a close-up view of the subject, making it ideal for surveillance applications where long-range monitoring is required. Telephoto lenses are commonly used in security cameras to monitor focused areas such as hallways or alleys.

Blog Feature

Video Surveillance | Security Terms

By: Isabel Leckie
August 10th, 2023

Infrared (IR) security cameras can capture black-and-white images even when there is little visible light. This technology is crucial in enhancing visibility and capturing images in low-light or nighttime conditions. IR security cameras are equipped with infrared LEDs that emit infrared illumination. This illumination can then convert the reflected IR light to a grayscale image visible to the human eye, which can then be displayed or recorded for surveillance purposes. By leveraging IR technology, security cameras can effectively monitor areas with little or no available light, such as nighttime scenes or dimly lit alleys and rooms. This enables round-the-clock surveillance and enhances the overall security of a location by providing visibility in challenging lighting conditions.

Blog Feature

Video Surveillance | Security Terms

By: Isabel Leckie
July 13th, 2023

Dome cameras are a popular type of security camera characterized by their darkened plastic dome-shaped housing. The dome housing serves both aesthetic and functional purposes. It provides a discreet appearance and makes it difficult for individuals to determine the direction the camera is pointing. The dome housing also protects against vandalism and tampering. Dome cameras are commonly used in indoor and outdoor environments to monitor a wide range of areas, including retail stores, office buildings, public spaces, and more.

Blog Feature

Video Surveillance | Security Terms

By: Isabel Leckie
July 6th, 2023

Digital zoom is a feature in security cameras that allows for the selective enlargement of a digital image or video without physically moving the camera lens. Unlike manual zooming, which uses the lens to magnify, digital zoom relies on software processing to enlarge the pixels in the image. For this reason, digital zoom can be easier to use since it doesn't require a technician to come and adjust the lens and can be completed at the tap of a button. However, it's important to note that digital zoom may result in losing image quality and detail. It can be useful for obtaining a closer view of an object or area of interest, but for clear imaging, manual zoom is generally preferred.

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Access Control | Video Surveillance | Fire Systems | Intrusion Alarms | Security Terms

By: Isabel Leckie
June 22nd, 2023

Underwriters Laboratories (UL) is a trusted resource known around the world for product safety and service certification. Since being founded in 1894, UL examines and tests devices, systems, and material to determine how their performance affects life, fire, casualty, hazards, and crime prevention.

Blog Feature

Video Surveillance | Security Terms

By: Isabel Leckie
June 15th, 2023

CCTV, or closed-circuit television, is a type of surveillance system that uses security cameras to monitor and record activities in a specific area. The term CCTV (closed-circuit television) is thrown around a lot when it comes to security cameras, but it isn’t a catch-all term. CCTV refers to an older type of technology in which camera video is stored locally, if at all. Compare this to IP cameras, a more modern alternative in which video is sent over a local private network to be stored on an intelligent video server. This allows for cloud storage, higher video resolution, and even advanced features like video analytics. With IP cameras, video can also be accessed live remotely from a mobile app or desktop browser.

Blog Feature

Video Surveillance | Security Terms

By: Isabel Leckie
June 1st, 2023

After a video surveillance security camera captures live video, it is processed and sent over a local private network for storage on an integrated video server (IVS). In some instances, integrated video servers also employ cloud storage of video events. With cloud storage, IVS makes it possible to view and share video clips remotely from your mobile device or personal computer, such as with DGA's OneVIEW system. Depending on your system, your video server may also come with cloud-based system health monitoring and event reports. Integrated video servers integrate easily into existing IT infrastructure and communicate with cloud-based servers for a secure and reliable video surveillance system. With advanced system management capabilities, large amounts of internal storage space, and compression ability, they are designed to meet the needs of virtually any business.

Blog Feature

Access Control | Video Surveillance | Fire Systems | Intrusion Alarms | Security Terms

By: Isabel Leckie
May 25th, 2023

Integration in security refers to the interactivity between different parts of a security system. Here are some examples of what you can accomplish with an integrated security system.

Blog Feature

Video Surveillance | Security Terms

By: Isabel Leckie
May 18th, 2023

An Internet Protocol Security Camera is the preferred technology for video surveillance systems. Unlike traditional analog cameras that rely on physical cables to transmit video signals, IP (Internet Protocol) cameras send data over a local private network or the internet to be stored on an intelligent video server. Some applications employ cloud storage of video events, allowing users to access and review footage from anywhere (as with DGA's OneVIEW). These cameras also have higher video resolution and more advanced features like video analytics, making them a popular choice for businesses and organizations of all sizes.

Blog Feature

Video Surveillance

By: John Kolb, CET, CPP
February 7th, 2023

When planning your business security system, it’s important to know the differences and application of outdoor vs indoor security cameras to deter crime. Despite their similar appearance, these security cameras have significant functionality differences.

Blog Feature

Video Surveillance

By: John Kolb, CET, CPP
March 2nd, 2022

If you’re shopping for business security cameras, you might wonder why anyone would bother paying for a professionally installed commercial security camera system at all when you could just do-it-yourself (DIY).