DS-2CD4A26FWD-IZS/P recognition errors

[Jeremeyh]

Hi wise people. I have set up my ANPR and have had it running a few days now. It's confusing 0 with 8, K with X and W with v. Could this be a range issue or a font issue? I am running the latest firmware 5.4.7 build 180629 running on NVR DS-7608NI-I2/8P. I have attached an example below.

 

[john-ipvm]

How fast are the cars going? We tested the DS-2CD4A26FWD-IZHS8/P earlier in the year (see unlocked report Hikvision LPR Camera Tested) and found that errors increased significantly with speed. Not sure if that is the case here, though.

 

[Jeremeyh]

It's a 50km area and on a corner. I'd say a Max of 60km average of 40.

 

[john-ipvm]

Speed may be a factor then, at least it was on our tests (though we did it with US plates, results may differ from NZ ones). Have you asked Hikvision tech support?

 

[Jeremeyh]

Not sure if I'd get support from them as I bought the camera from Ali express. I am running Australia region firmware so it's not a Chinese camera

 

[Jeremeyh]

Also at night the frame rate drops from highest to 20 fps is that normal?

 

[Jeremeyh]

Also at night the frame rate drops from highest to 20 fps is that normal?

I found the issue with the frame rate. I had the camera set to full frame in the NVR thinking that was max frame rate, but obviously it's not. Every time I set the camera to 50fps at the camera through the web interface it defaulted back to the NVR setting. I changed the NVR setting to 50fps and it's keeping that setting now.
So what actually is full frame rate? Can't find much info on it.

 

[Jeremeyh]

I have beekin contact with hikvision support and have received newer firmware which has fixed the issue.

 

[James H]

I have beekin contact with hikvision support and have received newer firmware which has fixed the issue.

Jeremy - what firmware build did they end up giving you?

 

[Jeremeyh]

They actually customised a firmware for me to let me store 5000 blacklist plates. It's a new Zealand version. V5.4.7 build 181026
It works pretty well