The Security Buying Group’s new range of thermal cameras uses ‘hot-spot’ detection and ‘scene temperature deviation’ to trigger alarms within its Digifort VMS platform. The system is already actively used in fire prevention, early fire detection and life safety applications and has many other uses.
“The ‘hot-spot’ alert detects any point, in up to five zones in the camera’s field of view, that exceeds a defined temperature,” explained Paul Scott, technical director of the Security Buying Group. “The hottest point in each zone is marked with a cross, which allows users to see the exact reason for an alarm or alert condition. The temperature reading at each cross, and its deviation from the ambient temperature level of each zone, is displayed in the video image. The hottest of the ‘hot-spots’ in the camera’s view is highlighted with a larger ‘crosshair’ and tracked in close to real time.
“The ‘Scene temperature deviation’ feature allows users to set a safe working temperature range in each zone or for the entire scene. An alert will be triggered if a zone becomes too hot or cold. For example, if the temperature threshold of a zone is programmed at 50°C, any part of that zone exceeding 50°C will trigger an alert or raise an alarm.”
All communications between the camera and VMS are via Ethernet, with alarm actions configured within the VMS. No external interfaces or video analytics licenses are required for its operation, making it a cost-effective solution.
The SBG thermal cameras’ resolution is 420x315 pixels and they are available with 8, 15, 25, 35 and 50mm lens options.