Whatcha think gents? I'll of course test it but like to see what the resident experts think first... @nayr @hmjgriffon
Great example of Dahua Starlight 2MP Verifocal Performance in low light
- Thread starter thomaswde
- Start date
Whatcha think gents? I'll of course test it but like to see what the resident experts think first... @nayr @hmjgriffon
Does traffic ever drive up the street and turn left into your driveway? I don't think the camera would have time to identify the motion before it crosses the tripwire. Coming down the street and turning right into your driveway would prob work alright.
Bradmph
Pulling my weight
I was thinking same thing , plus mail box thieves could do the mail box as well
nayr
IPCT Contributor
hmjgriffon
Known around here
Won't matter much if that cam triggers on someone at the mailbox, they are too far away to ID, would probably be a good case for a 35mm, also as for cars coming the other way, you'll prolly just have to wait till you get a cam on the other side.
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Below is a Tripwire grid I drew on my front porch.
I drew the right line so close to the front door, people walking out of the house (like my roommate below, going to play ball with his dogs) were almost always across the line before the camera had noticed them, so from the cameras point-of-view, they never crossed the right line, so it never alerted.
@nayr gave the same advice as you -- replace the Tripwire with an Intrusion Detection, and check both boxes. This works 100% for me. Someone leaving the house now that isn't detected by the Crossing will get caught by Appears (when the camera notices them).
Side note,in case you ever run into a situation where the camera isn't detecting objects as a quickly as you think, ... in my case below, the porch and the roommate were both pretty dark, so the camera usually wouldn't put a green box around him until he stepped into the sunny part of the porch. @nayr suggested I bump up the WDR, which helped brightened the dark area, and now the camera detects folks on the porch more quickly when it's shady like this.
I drew the right line so close to the front door, people walking out of the house (like my roommate below, going to play ball with his dogs) were almost always across the line before the camera had noticed them, so from the cameras point-of-view, they never crossed the right line, so it never alerted.
@nayr gave the same advice as you -- replace the Tripwire with an Intrusion Detection, and check both boxes. This works 100% for me. Someone leaving the house now that isn't detected by the Crossing will get caught by Appears (when the camera notices them).
Side note,in case you ever run into a situation where the camera isn't detecting objects as a quickly as you think, ... in my case below, the porch and the roommate were both pretty dark, so the camera usually wouldn't put a green box around him until he stepped into the sunny part of the porch. @nayr suggested I bump up the WDR, which helped brightened the dark area, and now the camera detects folks on the porch more quickly when it's shady like this.
(this is what made me think folks driving up your street and turning left into your driveway might not get detected by a Tripwire line)
Below is a Tripwire grid I drew on my front porch.
I drew the right line so close to the front door, people walking out of the house (like my roommate below, going to play ball with his dogs) were almost always across the line before the camera had noticed them, so from the cameras point-of-view, they never crossed the right line, so it never alerted.
@nayr gave the same advice as you -- replace the Tripwire with an Intrusion Detection, and check both boxes. This works 100% for me. Someone leaving the house now that isn't detected by the Crossing will get caught by Appears (when the camera notices them).
Side note,in case you ever run into a situation where the camera isn't detecting objects as a quickly as you think, ... in my case below, the porch and the roommate were both pretty dark, so the camera usually wouldn't put a green box around him until he stepped into the sunny part of the porch. @nayr suggested I bump up the WDR, which helped brightened the dark area, and now the camera detects folks on the porch more quickly when it's shady like this.
View attachment 16955
(this is what made me think folks driving up your street and turning left into your driveway might not get detected by a Tripwire line)
Yeah, big fan of WDR, I've mine set to 30 which seems perfect in the late afternoon when the setting sun casts a harsh contrast.
I like the intrusion zone method that you're using and Ryan suggested. I'm getting a ton of false positives at night from it though... Might have to sort out a schedule with a smaller detection zone at night. I had about 30 "bug invaders" last night attracted to the IR setting it off, with tripwire I had 1-2 tops. I guess that's the trade, false positives or great detection coverage. :/
hmjgriffon
Known around here
turn off internal IR, add external IR, lol, pain in the nuts, but works, also usually gives a better image.
@hmjgriffon Yeah I know, just rather not. haha Maybe down the road, for now I'll just tweak alerts.
One of my camera attracts flying things, but not too closely. I was able to use the Target Filter - Min Size to draw a box bigger than the bugs, so now it filters them out.
cryptelli
Pulling my weight
Since I've also found intrusion zones to be more reliable compared to tripwires, do they actually serve a useful purpose in some situations? I set one across the road to test and it triggered on every car, yet when I tried across my drive with it detecting me long before I crossed... nothing.
Do you use a mix in your own setup @nayr or have you found intrusion to be better also?
nayr
IPCT Contributor
i use both but if your in a situation where its not always detecting an object in time then intrusion works better because it'll signal once it registers that object in the area.. for doors I pretty much always use ID
mat200
IPCT Contributor
- Jan 17, 2017
- 15,379
- 25,928
oh that's always fun!!
recall myself in the past: "umm... you told them it could do what?"
Bradmph
Pulling my weight
"Culdesac" Sorry...I keep thinking of Hitchcock movies when I hear that word. 
Sure looks like you have the borders coming along well. As mentioned before about having a upper garage camera in my opinion would be a benefit since it cannot be reach easily at all. The camera at the edge of the house in that corner looks like it could be knocked out from behind by a stick or whatever. Since your using very nice cameras, protecting them from damage by an intruder could be something to keep in mind. IMO only. Reason I say this is, I had someone walk up on our porch and steal a cheap radio shack camera, only to find it broken and dropped in the street a few yards away. This is what got us to install our system.
Sure looks like you have the borders coming along well. As mentioned before about having a upper garage camera in my opinion would be a benefit since it cannot be reach easily at all. The camera at the edge of the house in that corner looks like it could be knocked out from behind by a stick or whatever. Since your using very nice cameras, protecting them from damage by an intruder could be something to keep in mind. IMO only. Reason I say this is, I had someone walk up on our porch and steal a cheap radio shack camera, only to find it broken and dropped in the street a few yards away. This is what got us to install our system.
hmjgriffon
Known around here
"Culdesac" Sorry...I keep thinking of Hitchcock movies when I hear that word.
leave some booby trapped decoys.
Bradmph
Pulling my weight
Hmmm Booobies (in Homer simpson voice) LOL
flynreelow
Known around here
- Dec 12, 2016
- 1,349
- 1,235
What differentiates Day Vs Night. Im trying to Set WDR...
Time of day?
Clock Settings?
If IR is on?
I tried to play around with the WDR, chose Night, but it immediately changed my camera view as I was doing this during daytime? I want WDR for dusk or nighttime, but not necessarily during the day.