IR for ALPR

Some quick responses....

My son just actually showed me an AWESOME trick to set up the IR. If you have a Quest 2 headset, you can put it in pass through mode and see EXACTLY where the light was pointed. I think it will be super useful for when I get the mounter..

I know I will have to dial these in.... Here is what I have for night. Dusk has been a bitch.

Screenshot 2023-05-08 at 9.14.10 PM.png
Screenshot 2023-05-08 at 9.14.04 PM.png
Screenshot 2023-05-08 at 9.14.00 PM.png
Screenshot 2023-05-08 at 9.13.55 PM.png
Screenshot 2023-05-08 at 9.13.51 PM.png
Screenshot 2023-05-08 at 9.13.46 PM.png
Screenshot 2023-05-08 at 9.13.41 PM.png
Screenshot 2023-05-08 at 9.13.32 PM.png

I have the plates and stats going into Homeseer via MQTT. Some place to grep out, log, and trigger...

5/8/2023 8:17:14 PM
Script
Plate
Plate detected: 1708 Probability: NightPlate:91%
5/8/2023 7:47:41 PM
Script
Plate
Plate detected: 6PT155 Probability: DayPlate:100%
5/8/2023 7:10:24 PM
 
  • Like
Reactions: looney2ns
Are you getting focused plates with the focus set to semi-auto?

Many of us the focus is different for color and infrared and we have to set the focus to manual.

Unless the cars are flying you could probably drop the shutter to 1/2000 or 1/1000.
 
wpiman said:
I have the plates and stats going into Homeseer via MQTT. Some place to grep out, log, and trigger...

5/8/2023 8:17:14 PM
Script
Plate
Plate detected: 1708 Probability: NightPlate:91%
5/8/2023 7:47:41 PM
Script
Plate
Plate detected: 6PT155 Probability: DayPlate:100%
5/8/2023 7:10:24 PM
Click to expand...

I, too, have HS4. Curious to learn more about the collection to HomeSeer. Can you share some details on this? For example, if my camera sees my plate arriving then I could open up the garage door with automation.
 
  • Like
Reactions: looney2ns
DLONG2 said:
I, too, have HS4. Curious to learn more about the collection to HomeSeer. Can you share some details on this? For example, if my camera sees my plate arriving then I could open up the garage door with automation.
Click to expand...

join us on the HomeSeer mcsMqtt thread here for details. Basically blue iris posts an mqtt message.

BlueIris and MQTT - HomeSeer Message Board

Hi Michael, Making small progress with BlueIris and MQTT but I'm almost there. I'm able to send a MQTT topic and right now sending an email. How would I pass the &Plate to the email? Bear with me, not as fast as long time ago :-) Thank you.
forums.homeseer.com
 
wittaj said:
Are you getting focused plates with the focus set to semi-auto?

Many of us the focus is different for color and infrared and we have to set the focus to manual.

Unless the cars are flying you could probably drop the shutter to 1/2000 or 1/1000.
Click to expand...

good question. Mostly but I have noticed occasionally it messes up. I’ll give it a switch.

here is my latest. Not a lot of traffic on my street tonight.
 

Attachments

  • IMG_1454.png
    IMG_1454.png
    450.3 KB · Views: 21
Thanks guys. The mount comes tomorrow, so I will get that all dialed in tomorrow night with the oculus and adjust my settings.

Those pictures look pretty damn good. I was thinking of putting some tape on the light sensor of the illuminator to keep it on.

I don't get a ton of traffic at night on my street (dead end- maybe 20 houses). I might have to park my car out there with the light on.
 
wpiman said:
Thanks guys. The mount comes tomorrow, so I will get that all dialed in tomorrow night with the oculus and adjust my settings.

Those pictures look pretty damn good. I was thinking of putting some tape on the light sensor of the illuminator to keep it on.

I don't get a ton of traffic at night on my street (dead end- maybe 20 houses). I might have to park my car out there with the light on.
Click to expand...
For a standard 1/4 20 mount you need to tap the hole. I think the IR mounting hole is taped with a 1/4 28 or metric
 
Mount came today...

Just got this... Nightplate 98% 2PFZ19

How do you like them apples?

And other one just came through-- got that one too....

I have my camera and mount pointed like 70 degrees from the house. The mounts are super strong in that position. Has anyone ever like hit them with something sticky to make them a little more secure? I was thinking some hot glue? When the snow comes off the roof in 9 months I am not sure how good this will be pointed...

Screenshot 2023-05-10 at 9.16.12 PM.png
 
  • Like
Reactions: MikeLud1 and bigredfish
Yeah, so I see all the lights when I stand out there. I put a reflective stake in the camera view and then used the night vision to check the spot light alignment. I have the stick slightly to the right of the center of the beam. I tried to capture an pass through image on the Oculus but it doesn't take picture in that mode. Tonight, maybe I can try another camera.

These images are with the light pointed SLIGHTLY to the right of the night before. I got two out of the three. Big improvement. I am wondering if the first one isn't some license plate UV cover.

I also checked the wattage with a kill A watt meter. I see about 6 Watts when I cover up the light detector. That seems about right.

My street is SUPER dark as well. There is another house across the street- but we have 2 acre zoning and no street lights. If anyone has any more hints on improvements I am all ears.

Screenshot 2023-05-13 at 4.03.55 PM.png
Screenshot 2023-05-13 at 4.03.12 PM.png
Screenshot 2023-05-13 at 4.02.28 PM.png
 
Is that bad one a front plate? If so, that might be the reason. Front plates can be hard. They have no license plate light, they get dirty and can be deformed. They can have the image blasted off in climes that have snow.

It may be a paper/temporary plate, or not even a plate at all, like a dealer's name plate that is not reflective.
 
  • Like
Reactions: wpiman
wpiman said:
Yeah, so I see all the lights when I stand out there. I put a reflective stake in the camera view and then used the night vision to check the spot light alignment. I have the stick slightly to the right of the center of the beam. I tried to capture an pass through image on the Oculus but it doesn't take picture in that mode. Tonight, maybe I can try another camera.

These images are with the light pointed SLIGHTLY to the right of the night before. I got two out of the three. Big improvement. I am wondering if the first one isn't some license plate UV cover.

I also checked the wattage with a kill A watt meter. I see about 6 Watts when I cover up the light detector. That seems about right.

My street is SUPER dark as well. There is another house across the street- but we have 2 acre zoning and no street lights. If anyone has any more hints on improvements I am all ears.

View attachment 162935
View attachment 162936
View attachment 162937
Click to expand...
Post your camera settings also how close is the IR mounted to the camera.
 
MikeLud1 said:
Post your camera settings
Click to expand...

Last night I used the exact settings you had in post #47. In one of the earlier posts your picture settings were quite different. I actually just copied what you had earlier for tonight....

I wish Dahua has a way to save the settings to a file...
 
  • Like
Reactions: CanCuba
MikeLud1 said:
Post your camera settings also how close is the IR mounted to the camera.
Click to expand...

Here is where it is mounted. I tried to get them close with the IR Ahead. They are also pointing left- so the angle between them it very, very small.

It is low off the ground but to the left, the ground drops off a bunch, and there is a valley and the road is elevated.
IMG_1462.jpg

IMG_1463.jpg
 
  • Like
Reactions: JDreaming and samplenhold
wpiman said:
Here is where it is mounted. I tried to get them close with the IR Ahead. They are also pointing left- so the angle between them it very, very small.

It is low off the ground but to the left, the ground drops off a bunch, and there is a valley and the road is elevated.
View attachment 162941

View attachment 162942
Click to expand...
Try mounting closure to the camera from your photo it looks like it is mount 3+ feet away from the camera.

1684010671002.png

1684010892824.png
 
  • Like
Reactions: looney2ns and wpiman
MikeLud1 said:
Try mounting closure to the camera from your photo it looks like it is mount 3+ feet away from the camera.

View attachment 162944

View attachment 162945
Click to expand...

So the Camera to IR is 28" laterally, but in the field of view plane- it is 15".

If I am reading that graph correctly, I am probably closer to the second one up, but it is exponentially better to get even that distance down.

I'll give it a whirl. The pain in the ass issue is it was hard for me to fish that wire from there, but that is a one time issue.

Off to have my wife yell at me about more holes in the house!
 
You must log in or register to reply here.
Top Bottom