
CCTV Recording System
The building block of any CCTV surveillance system is the recording system and video management software that is used. The core function of the recording system is to process the video images from the CCTV cameras and store this video data in a way that is easily retrieved and reviewed.
The primary function of any CCTV recording system is to store the video footage, but with the progression of technology and processing power, your recording system can now move forward from being a reactive system investigating events that have already happened and now become a proactive system that alerts you to events before they happen.
A few ways that this can be achieved is by integrating these systems with Facial recognition, License Plate recognition, Fever detection, Analytics, Access control systems and building management systems. Integrations with third-party equipment and software are continually being developed and with the advancement of Artificial Intelligence being integrated into these recording systems, the abilities of your surveillance system are becoming crucial to the functionality of your business.
The recording systems available today are Embedded DVRs and NVRs as well as PC based NVRs & Cloud Based.
Digital Video Recorder (DVR)
A Digital Video Recorder (DVR) records video to local storage devices, most commonly a hard drive. DVR can record analog video sources on-site or capture video from a digital source. DVRs can be connected to analog cameras via coaxial cables, enabling them to be accessed remotely. DVRs offer enhanced functionality like the ability to search recordings for events, or sort by time and date. DVRs can be configured to automatically replace older footage once storage becomes full.


Network Video Recorder (NVR)
PC Based NVR


VMS Software
Embedded Vs PC Based
Embedded DVRs and NVRs have progressed dramatically, storage capabilities are now right up there with PC based solutions. Embedded units run on a Linux operating system that is not only more stable than Windows-based machines, they are not vulnerable to Viruses.PC based recording systems are more expensive due to the processing power required and are more vulnerable to cyber-attacks and viruses, but the flexibility of the software and integration abilities are a great advantage for many installations.A really good compromise is to use embedded recording devices for your storage and to use a PC based VMS (Video Management Software) to enable you to take advantage of all the features available to you.


Cloud storage
Storage Capabilities
Edge recording – Edge recording refers to the ability of the camera itself to save the video footage to onboard storage. On some higher-end cameras, this can be with a built-in solid-state HDD, but in most cases, this is done with an SD card. Recording times are limited to the size of SD card available, but this is a cost-effective method for small sites or even covert installations that don’t require extended periods of recording or are not accessible to network or recording systems. Edge recording can also be used as a failover solution to ensure no footage is lost if something goes wrong with your main recording solution.
DVRs and NVRs – These devices have a set number of SATA drives for you to install up to 10TB HDD. All devices have different capabilities as to the number of hard drives they can accommodate and your limitation to recording will be according to the make and model of your recording unit.
NAS and SAN – NAS (Network Attached Storage) and SAN (Storage Area Network) units allow for the expansion of your video storage capabilities. With these devices your storage expansion is endless and data can be stored away from your recording devices.