Edge recording refers to the process of storing video from IP surveillance cameras on SD cards, instead of the usual centralized video management systems. This concept has gained traction in the last few years, as a result of the improved SD card storage capacity, as well as significant reduction in cost.
Edge Recording - Primary or Backup Storage
The choice of edge recording in business IP surveillance systems, as either primary or backup storage, is largely determined by what one intends to achieve and the particular application being deployed.
Generally, on-board storage is an ideal option for small-to-medium business (SMBs) surveillance applications such as those deployed in convenience stores, hotels, restaurants, gas stations, banks, and small offices. These businesses prefer to stick with their analog camera systems, citing the high cost of implementing IP surveillance systems.
Edge recording is the best solution for SMBs that wish to make the analog-IP shift. The surveillance applications for these businesses are usually not demanding, thus ensuring that the capability of SD cards is not overtaxed. In addition, the small number of security cameras, usually located on a single site and not exceeding 16, makes it cheaper to implement on-board storage, as opposed to centralized video management solutions.
What the Future Holds for Recording on the Edge
For many years, IP security camera manufacturers have been experimenting with on-board storage. At best, recording on edge was offered to support surveillance installations in remote areas, or as an add-on feature to provide redundancy in highly sensitive security applications. Currently, edge recording is popularly used as backup or secondary storage for small-to-medium business IP surveillance systems.
The limited storage capacity of SD cards makes on-board storage practical for smaller installations, usually not exceeding 16 cameras. However, technological advancement in the last few years has seen a sharp increase in SD card storage capacity, coupled with drop in prices. If this is anything to go by, SD cards have a bright future, and might result in a shift similar to that of analog-to-IP. It is possible that on-board storage might become a preferred primary storage option for many IP surveillance applications.