Hi,
As I understand it, the NVR doesn't do analysis; what happens is the camera (if it has the feature) detects, say, a 'line crossing event', and then raises an alert to the NVR. If the NVR supports this, then you can search through and analyse this from the NVR software.
Presumably if it is an older model NVR then you'd just get an 'alarm', so you'd still be able to search through, but just not with the same degree of granularity?
As I understand it, the NVR doesn't do analysis; what happens is the camera (if it has the feature) detects, say, a 'line crossing event', and then raises an alert to the NVR. If the NVR supports this, then you can search through and analyse this from the NVR software.
Presumably if it is an older model NVR then you'd just get an 'alarm', so you'd still be able to search through, but just not with the same degree of granularity?