Surveillance and security systems

Design the view before choosing the camera

For surveillance and security systems, general evidence and playback often calls for CCTV surveillance. Each job needs different scene width, pixel density, angle and light. Resolution on the box tells only part of that story. The project timeline places the general evidence and playback survey before equipment selection, followed by installation and a witnessed views, retention and controlled export check. The written decision is views, retention and controlled export; the related four different jobs review then checks that choice against the site's actual users, opening or camera view, and failure response.

For surveillance and security systems, event filtering often calls for AI video surveillance. Lens choice and mounting height follow from that. The written decision is measured detection with human verification; the related privacy belongs in the drawing review then checks that choice against the site's actual users, opening or camera view, and failure response.

Recording is a storage and access policy

For surveillance and security systems, local open software stack often calls for frigate NVR. We calculate it with headroom, then test playback and export. The written decision is supported cameras, compute and administration; the related four different jobs review then checks that choice against the site's actual users, opening or camera view, and failure response.

For surveillance and security systems, vehicle plate workflow often calls for ANPR. The written decision is lane geometry, plate capture and matching rules; the related privacy belongs in the drawing review then checks that choice against the site's actual users, opening or camera view, and failure response.

Analytics narrow attention; they do not establish truth

For surveillance and security systems, general evidence and playback often calls for CCTV surveillance. They also miss events and create nuisance alerts when the scene, light or threshold changes. Maintenance revisits views, retention and controlled export, user access and the physical condition that could change this result after handover. The written decision is views, retention and controlled export; the related four different jobs review then checks that choice against the site's actual users, opening or camera view, and failure response.

For surveillance and security systems, event filtering often calls for AI video surveillance. Sensitive uses such as face matching need a separate legal, privacy and operational review. A simpler alternative is retained whenever the site can meet the same need with a staffed, mechanical or non-analytic process. The written decision is measured detection with human verification; the related privacy belongs in the drawing review then checks that choice against the site's actual users, opening or camera view, and failure response.

Four different jobs

CCTV surveillance captures and stores the scene. AI video surveillance filters events using analytics. Frigate NVR is a local, software-led recording option with object detection and Home Assistant integration. ANPR is a specialised plate-capture and matching workflow for suitable vehicle lanes.

Privacy belongs in the drawing

Camera angles, audio, masks, retention and remote access affect people who never chose the system. We mark private areas and user roles before commissioning. Legal permissions remain with the owner and qualified counsel; the installer can document the controls, not grant the authority.

What should be budgeted beyond cameras?

The camera count is not the budget. Cost also follows lenses, mounting, lighting, network power, recording capacity, retention and operator access; routine maintenance checks views, focus, time, storage health and user permissions. A door sensor, staffed response or improved lighting can be a better alternative where the actual need is detection or deterrence rather than recorded video.