The cost is probably the single most important consideration for most home and business owners when trying to locate CCTV camera systems for their surveillance applications. However, one must take time to understand the wide variety of technical jargon that is associated with video surveillance systems in order to choose an ideal solution that fits to purpose. Below is a look at some of the jargon that you are likely to encounter when shopping for security cameras.
How to locate CCTV camera systems for your home or business
1. Stand-alone CCTV Surveillance Systems vs. IP Surveillance Systems
Standalone DVR security camera systems are basically analog camera systems, which run proprietary operating systems. These systems are locked by the vendor and designed to run one application only. The analog CCTV Systems usually comprise of security cameras linked via a multiplexer, a monitor, and a VCR-like recorder. IP CCTV Systems, on the other hand, are designed to operate on IP technology. As such, there is no vendor lock-in and users can easily monitor and record security footage over any IP network (LAN/WAN), including the Internet.
2. Frame Rate
The frame rate refers to the number of frames that a camera can capture in a second – usually denoted as frames per second (fps). The commonly acceptable frame rate for video surveillance applications is 30 fps, even though professional-grade IP surveillance systems can achieve up to 120 fps. However, most users prefer to use the standard frame rate (30 fps), or lower, to capture images since increasing the frame rate leads to an increase in the amount of video data recorded. Usually, increasing the frame rate requires a substantial increase in the video storage capacity.
Resolution refers to the quality of definition for images captured by the camera, with regard to picture accuracy and clarity. This is an important consideration when trying to locate CCTV cameras since it determines the overall picture quality. IP surveillance cameras offer higher resolution images as compared to analog cameras. The resolution in IP Cameras is measured in megapixels, with the highest resolution going up to 10 MP. Analog cameras, on the other hand, offer SD quality image resolution (measured in TV lines).
When trying to locate CCTV security cameras for your home or business surveillance application, you will come across technical specifications denoted as LUX. This basically represents the measure of a camera’s sensitivity to light. Lighting has a great influence on the quality of images that individual security cameras can produce. For instance, a 0.5 LUX sensitivity indicates that the camera is capable of distinguishing images in low-light environments. A security camera with a higher light sensitivity, such as 2 LUX, can only see in a fairly well-lit environment.