LPR Infrared Help

[riley edwards]

Hey IPCamTalk,
I recently got a steal on a decent LPC camera, the LPR700 (got it used for $40)!

Anyway, I've been playing around with it lately and have been having some issues. The camera is mounted at plate height approximately 20 degrees away from my residential street, ~30 feet away from vehicles driving by, and my issue has been lighting.

The camera says online that it has "IR FLUX LED'S", but after playing around with the lights, theres no led's that come on - just 2 bright white lights. I don't want the camera to be too noticeable since its in a pretty hidden location, so I ended up purchasing an IR light that I attached to the side of the camera. Still, having issues, with the light not doing much.

Any reccomendations on better lighting or how I can get more IR on the plates? I have the IR angled in the same direction as the camera, right on the righthand side of it. I have no idea why plates arnet as vibrant.

Camera:https://www.amazon.com/TSL-LPR700/dp/B014X74DLM
IR Attachment:https://www.walmart.com/ip/48-LED-i...ght-Vision-Lamp-for-Security-Camera/445130282

 

[bigredfish]

$40 is a bit more that I'd pay for it. That camera is pretty old analog 700tvl technology and that wimpy IR illuminator isnt going to help much. The specs show it does have red IR led's..?
http://site.camtechsurveillance.com/pdf/LPR700.pdf

Still with the right distance/angle and IR you might be able to get mediocre plate capture. How fast are the cars traveling? Look at getting a real Illuminator such as this
https://www.amazon.com/Tendelux-Ill...Infrared/dp/B0771GQMPT/ref=asc_df_B0771GQMPT/
Generally you're going to want Exposure at 1/500-1/1000 range for starts and lower DNR as low as possible with still being able to read the plate.

 

[awsum140]

Just guessing since I have no experience with that camera. I'd say it has no IR cut filter given that the built-in "IR" lighting is white light. From your link, it only has 1/3" sensor which translates to marginal low light performance. Adding an external IR won't help. There's a whole, very long, section on LPR here and setting up LPR can be a real art and trick. Check out that thread - LPR

 

[bigredfish]

Agree its junk but the specs all say:

Infrared LED
Infrared Red Lamps
Effective IR Lighting Distance 60ft

 

[riley edwards]

$40 is a bit more that I'd pay for it. That camera is pretty old analog 700tvl technology and that wimpy IR illuminator isnt going to help much. The specs show it does have red IR led's..?
http://site.camtechsurveillance.com/pdf/LPR700.pdf

Still with the right distance/angle and IR you might be able to get mediocre plate capture. How fast are the cars traveling? Look at getting a real Illuminator such as this
https://www.amazon.com/Tendelux-Ill...Infrared/dp/B0771GQMPT/ref=asc_df_B0771GQMPT/
Generally you're going to want Exposure at 1/500-1/1000 range for starts and lower DNR as low as possible with still being able to read the plate.

Cars are moving between 20-30 miles per hour, I have little light in the area with my shutter set at 1/1000.
What if I were to order an external IR attachment board to fit right around the lens?
Infrared IR 36 Led Illuminator Board Plate for CCTV CCD Security Camera Z3X9 4894462508763 | eBay

 

[awsum140]

You
re beating a dead horse with that camera. Easier, faster and less frustrating to get something more up to date that will do the job than fool around with that one.

 

[bigredfish]

No idea if that would work or not, specs say it’s supposed to already have IR and I don’t think you want to try and add IR to the camera itself. Like @awsum140 said, you’re probably best off chalking that one up to the learning curve and get something a bit more up to date.