Moving Trees shadow with cross zones

Dinnabeh

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I have BI 4.5.8 and it's working great.
I have my neighbors trees along my driveway and when it's sunny and little windy, BI keeps triggering on the shadow movements.
I have been told to setup cross zone and tell BI to trigger when objects moving from A-B.
The problem is I am having hard time figuring out how to do this with zone A and Zone B.
I hope that someone can explain it to me with more details how to draw and set it up.
Thank you all.
 

fenderman

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I have BI 4.5.8 and it's working great.
I have my neighbors trees along my driveway and when it's sunny and little windy, BI keeps triggering on the shadow movements.
I have been told to setup cross zone and tell BI to trigger when objects moving from A-B.
The problem is I am having hard time figuring out how to do this with zone A and Zone B.
I hope that someone can explain it to me with more details how to draw and set it up.
Thank you all.
Welcome to the forum...there are many threads that discuss this as well as the help file that provides specific instruction on how to properly setup zones (no spaces or overlaps etc)
 

Dinnabeh

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Welcome to the forum...there are many threads that discuss this as well as the help file that provides specific instruction on how to properly setup zones (no spaces or overlaps etc)
Thank you for your quick reply.
I looked at the forum and searched for this issue and didn't find anywhere that explains how.
I read the help file and it's more confusing than helping.
From your answer above, I learned a good thing that no spaces and no overlaps. That's good so far.
But how to highlight the Zones.
So do I have the entire Zone A green and then Zone B what?
 

tigerwillow1

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With Dahua IVS, line crossing is way, way more reliable than motion sensing, and I don't have any reason to think that's not also the case with BI. It's not foolproof, however. On windy days with the right light angle, the camera latches onto shadows as objects and tracks them. When this nonexistent object crosses the line, it triggers an event.
 

Mike.in.Minnesota

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I've tested this exact scenario along a side path of the house. It works excellent. One thing to keep in mind... If your doing this in a general area, then you must take into account how movement would travel thru the area. Bound to miss some movements as persons walk thru.

In my scenario, along the side on my house, there is only 1 path thru, and then to either side in the front and back. So, I setup 2 zones (A & B) in the front, 2 along the path (C & D), and 2 in the back E & F). The edges of the zone are bordered by buildings, so unless they fly, there is no other way thru. Then I placed hotzones along the edges under the windows & doors. See attached sketch (It's crude, but get should get the point across).

Then I set then 'Object crosses zones' field to: A-B, A-C, B-C, C-D, D-E, D-F, E-F

I tested it by walking around in all different directions. It works.
Problem is, if someone walks from E to D (motion triggered), then walks to the lower side - that is not caught until they walk either thru the hotzone, or back to E or to F or D. So they could pretty much spend a while rolling around naked (or something) in zone D until they get tired and either fly off, or, walk thru another zone.
That's why I have the 2 hotzones. That's where windows & doors are (and my diamond cache).

That took care of 90% of the tree swag triggers. In early morning and late evening, when the shadows are the longest, the tree shadows are very long and therefore the normal movement of the shadow is also larger, and a large gust of wind will trigger motion. I could schedule a profile to turn this off during those times, but, I'd rather get false triggers than none.

Also, when doing this each zone must overlap the other.
The hotzones are excluded from the 'object crosses zones' and will trigger motion of the regardless of the other zones.

Pretty bizarre, ehh! Yaa, fur sure. lol
I stopped using it. It was just too much.
 

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fenderman

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I've tested this exact scenario along a side path of the house. It works excellent. One thing to keep in mind... If your doing this in a general area, then you must take into account how movement would travel thru the area. Bound to miss some movements as persons walk thru.

In my scenario, along the side on my house, there is only 1 path thru, and then to either side in the front and back. So, I setup 2 zones (A & B) in the front, 2 along the path (C & D), and 2 in the back E & F). The edges of the zone are bordered by buildings, so unless they fly, there is no other way thru. Then I placed hotzones along the edges under the windows & doors. See attached sketch (It's crude, but get should get the point across).

Then I set then 'Object crosses zones' field to: A-B, A-C, B-C, C-D, D-E, D-F, E-F

I tested it by walking around in all different directions. It works.
Problem is, if someone walks from E to D (motion triggered), then walks to the lower side - that is not caught until they walk either thru the hotzone, or back to E or to F or D. So they could pretty much spend a while rolling around naked (or something) in zone D until they get tired and either fly off, or, walk thru another zone.
That's why I have the 2 hotzones. That's where windows & doors are (and my diamond cache).

That took care of 90% of the tree swag triggers. In early morning and late evening, when the shadows are the longest, the tree shadows are very long and therefore the normal movement of the shadow is also larger, and a large gust of wind will trigger motion. I could schedule a profile to turn this off during those times, but, I'd rather get false triggers than none.

Also, when doing this each zone must overlap the other.
The hotzones are excluded from the 'object crosses zones' and will trigger motion of the regardless of the other zones.

Pretty bizarre, ehh! Yaa, fur sure. lol
I stopped using it. It was just too much.
using hotspots is not recommended...you will get false triggers as that area becomes super sensitive..
 

Machine

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Have you considered a more low-tech approach? A chain saw and some tree trimmers. I did that with a tree that was giving me the exact same problem.
 
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Mike.in.Minnesota

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Sounds like an easy solution.
I don't think my neighbors on either side, and across the street, would appreciate me cutting their trees.
 
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