The requirements for cameras
...
when you work with
...
the Fire detection and Smoke detection modules are
...
given in the following table.
Camera | It is recommended to use - We recommend using color cameras.
With - When you use black and white cameras, the recognition quality can be much worse.
- Resolution must be at least 640x360 pixels.
- Number of frames: the detection response rate
of the detection module - depends on the number of frames per second
, - ; by default
, it is 1 per every - (once per 10 seconds
(- ) in most cases
, - it is enough to detect a fire/smoke that lasts more than
1 - one minute
) |
| Lighting | - Fire/smoke must be visually separable from the background
|
Object images | - The minimum area of fire/smoke in the frame depends on the neural network used. For a standard neural network (see see Configuring the Fire detection and Smoke detection program modules), the the area of fire/smoke must be at least 10% of the frame area. In some cases, when the fire is well contained, it can be sufficient for a detection tool that the width/height of the fire zone is as 1-3% of the width/height of the frame can be sufficient for the detector
|
| Note |
|---|
|
If you specify the surveillance area of interest is specified on the video image, then the above requirements are relevant for it , and not for the entire frame (see see Configuring the Fire detection and Smoke detection program modules). Correct We don't guarantee the correct operation of the Fire detection and Smoke detection isn't guaranteed if you use a video stream or fire and smoke detectors when you use the video stream and frames that were masked before they got into to Axxon PSIM PSIM by an the IP camera or similar means and methods. |
