IVS setup advice on 270 degree view? PTZ

[stevef22]

Setup: Cam link here

• Mount: on a bracket about 24" off the right corner of the building, roughly [X] ft above grade
• Coverage: ~270° of usable view
• Key areas: front door at ~[X] ft, dumpster at ~[X] ft
• Lighting: [IR at night / parking lot lights / etc.]

What I'm trying to do:

1. Run a 270° tour once per hour, then return to a home preset covering the door and dumpster.
2. When a human is detected, auto-zoom in tight on them.

Questions:

1. Is this best done with a Tour vs. an Auto Scan, and does the Idle Motion / auto-home timer reliably pull it back to the preset after the tour?
2. Does IVS keep working during the tour, or do I need SMD/AI Tracking instead since IVS rules are tied to a fixed preset?
3. For the zoom-in behavior — is Auto Tracking the right tool, or should I use a tripwire/intrusion rule with a linked preset?

Appreciate any pointers. Thanks.

 

[oh6hfx]

Once per hour sounds not much. Leaves most of the sector outside the surveillance for most of the time. I should put 2 extra basic bullet cameras as spotter cams and configure PTZ linkage in the NVR to command PTZ to turn to desired preset when IVS is triggered in a spotter cam.

 

[bigredfish]

^^^^^
This

 

[DezertManiac]

My personal opinion:
Depends what your overall goal is here, eg, overall security, intrusion, illegal dumping, building protection, parking lot protection, etc.
I believe you are trying to do too much with a single camera. as oh6hfx mentioned above, the best approach is to have 2 or 3 extra cameras used as spotter cameras, that provide uninterrupted coverage of an area 24/7. Using a PTZ to cover multiple areas leaves coverage gaps, IVS rules only work if the camera is pointed at the Tripwire/Intrusion zone. Use the PTZ as your "security guard" meaning, zoom in on perpetrator, vehicle, follow a person, etc, based on triggered alarms by the spotter cameras. Remember cameras are nowhere perfect, meaning if the PTZ camera misses an IVS triggered event, from let's say the front of the building, then you won't have any coverage from a potential intrusion to the rear of the building. Hope this makes sense!

 

[wittaj]

+1 to all of the above.

While the PTZ is actually moving during the scan, it will not autotrack.

Scanning will miss so much, and wear the camera out prematurely.

The firmware is encoded with a movement limit and some folks have hit that limit within a year.

It is much better to use fixed cameras as spotter cameras to move the PTZ so certain presets.

Thread 'Using Spotter Cameras to direct a PTZ where to look in an NVR or Blue Iris and setting a spotter cam as a priority in Blue Iris'

Mar 12, 2022

We get this question from time to time, so I thought with the recent addition to BI, it made sense to have a thread we can point to.

Previously in BI, if you had more than one spotter cam, you could not make one a priority, so if spotter cam #1 triggered the PTZ and it starts tracking and spotter cam #2 is triggered, it would then take the PTZ off of spotter cam #1 tracking and move to the preset for spotter cam #2.

Now with BI 5.5.6.0, you can go into the PTZ tab in the Camera setttings and go to the preset that you want to have priority and check the "cancel alerts when the camera is...

• wittaj
• Replies: 167
• Forum: Customizing

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[stevef22]

Thanks everyone. I had no idea a spotter cam exists. I will configure one and train it on the back door and dumpster. These are the two areas Im interested the most.


So the setup will be as follows

1. Spotter cam arial top down pointing at back door and dumpter. I will draw a hotspot around these areas.

2. Configure PTZ camera to be triggered by spotter cam

3. Mean while PTZ will be running its normal tour 270 degree pan every 30 mins or so


Does this sound good to you?

 

[wittaj]

Again the 270 pan won't be able to stop on any activity and will just create a blur as is swings around. Rare that it creates any value. Much better to have some wide angles looking in those areas.

But once or twice an hour shouldn't hit the limit. We have seen people having it scan to presets like every 2 minutes and the PTZ limiter kicked in after a year and turned it into a fixed camera.

 

[oh6hfx]

If back door and dumpster are priority, I should set PTZ home preset there and make IVS rules in that view to start tracking. Then add spotter cameras pointing secondary areas on that property and set PTZ presets according to these spotter cameras and make IVS rules for tracking as well.
I see also no any value of the PTZ scan or tour for surveillance. Those are better for public landscape camera.

 

[DezertManiac]

@stevef22 if you don't mind me asking, what are you after with having the PTZ camera setup to pan every 30min or so?

 

[stevef22]

@stevef22 if you don't mind me asking, what are you after with having the PTZ camera setup to pan every 30min or so?

Thats a good question. The answer is "I dont know" nothing really. With motion blur and other issues mentioned it would be just for looks. So I dont think its a good idea. Thanks for your input

 

[stevef22]

If back door and dumpster are priority, I should set PTZ home preset there and make IVS rules in that view to start tracking. Then add spotter cameras pointing secondary areas on that property and set PTZ presets according to these spotter cameras and make IVS rules for tracking as well.
I see also no any value of the PTZ scan or tour for surveillance. Those are better for public landscape camera.

Thank you, I will do it this way.