IPC-HFW5231E-Z12 LPR from 137 feet

[crc2004]

I’ve been running a IPC-HFW5231E-Z12 as an LPR from 137 feet for over a week now and I’m getting excellent results for both day and night.

The 137 feet distance was calculated using the IPVM calculator (IPVM Camera Calculator) and I measured it with a Bosch laser measurer. Here’s the birds eye view of the camera placement which was at the corner of the house under the eaves.


Here’s my how my steams are configured. I’m using the Main Stream for BI and Sub Stream 2 for LPR. Sub Stream 1 is disabled. Both streams are defined the same 1080P, VBR and 5 FPS.


I have separate day / night profiles and use the DahuaSunriseSunset utility to switch profiles and refocus. Link to the utility; Dahua day/night switch utility - DahuaSunriseSunset

Sample day image


Daytime settings, values not shown are default;


Sample night image


Nighttime settings, values not shown are default.

 

[crc2004]

Here's how I mounted the camera;

 

[crc2004]

I'm using the free version of OpenALPR for now.

 

[crc2004]

Here's my DahuaSunriseSunset settings, I zoom in a little more at night since you can't see what kind of vehicle it is;

 

[crc2004]

Wow. Very impressive!

I was surprised with what that camera could do. It took about 5 days of tinkering with the exposure (and other) settings to get it dialed in.

 

[fenderman]

Do yourself a big favor and waterproof that connection...you will fry the camera with a bit of water...

 

[crc2004]

Do yourself a big favor and waterproof that connection...you will fry the camera with a bit of water...

Good point and thanks for mentioning it. It's under an eave but with some strong winds and rain it could get wet. I'm thinking of moving it back a little more and to the left to make it less exposed but now that you brought it up I'll look at some water proofing measures. I really didn't want to use that wall mount and should have asked the forum about other mounting solutions.

 

[crc2004]

Had to post a dusk photo, that camera is amazing.

 

[achalmersman]

Glad to see this. I have 3 of these ariving tomorrow from Andy for LPR duties. At 100' and less.

Sent from my VS990 using Tapatalk

 

[crc2004]

Glad to see this. I have 3 of these ariving tomorrow from Andy for LPR duties. At 100' and less.
Sent from my VS990 using Tapatalk

Just an FYI: Frame rate settings lost after camera reboot IPC-HFW5231E-Z12

 

[achalmersman]

Just an FYI: Frame rate settings lost after camera reboot IPC-HFW5231E-Z12

Thanks!

Sent from my VS990 using Tapatalk

 

[EMPIRETECANDY]

I’ve been running a IPC-HFW5231E-Z12 as an LPR from 137 feet for over a week now and I’m getting excellent results for both day and night.

The 137 feet distance was calculated using the IPVM calculator and I measured it with a Bosch laser measurer. Here’s the birds eye view of the camera placement which was at the corner of the house under the eaves.
View attachment 24360

Here’s my how my steams are configured. I’m using the Main Stream for BI and Sub Stream 2 for LPR. Sub Stream 1 is disabled. Both streams are defined the same 1080P, VBR and 5 FPS.
View attachment 24361

I have separate day / night profiles and use the DahuaSunriseSunset utility to switch profiles and refocus. Link to the utility; Dahua day/night switch utility - DahuaSunriseSunset

Sample day image
View attachment 24362

Daytime settings, values not shown are default;
View attachment 24363

Sample night image
View attachment 24364

Nighttime settings, values not shown are default.
View attachment 24365
View attachment 24366

This camera is crazy good for watching the license plate. Any guys in other country can watch the plate like this pic?

 

[Saltster]

Do yourself a big favor and waterproof that connection...you will fry the camera with a bit of water...

I agree with you on that
Every connection should be housed in a dry box or waterproofed...

 

[nbstl68]

What size or part number is that junction box it is mounted to in your pic?
Is there a waterproof junction box like that available?

 

[crc2004]

What size or part number is that junction box it is mounted to in your pic?
Is there a waterproof junction box like that available?

PFA121 - Dahua Technology

I bought it from here when I bought the camera, it was $24.31.

Empire Technology Co., Ltd - Small Orders Online Store, Hot Selling and more on Aliexpress.com | Alibaba Group

Here's a document that shows compatible accessories for camera types.

http://www1.dahuasecurity.com/download/Accessory_Selection_20171123.pdf

 

[nbstl68]

I'm not sure why but whenever I go to any Dahua links in the forum like the one you just provided I get "page not found".
http://www1.dahuasecurity.com/product/productDetail/16141

 

[crc2004]

I'm not sure why but whenever I go to any Dahua links in the forum like the one you just provided I get "page not found".
http://www1.dahuasecurity.com/product/productDetail/16141

I get a not found too on that link and for a short time a couple days ago I was getting a not found on the other links. I just checked the three links on my comment above and they are working now. I'm guessing they had a short term problem with their website.

 

[nbstl68]

Still not found for me and other Dania links. No idea.

 

[tangent]

I'm not sure why but whenever I go to any Dahua links in the forum like the one you just provided I get "page not found".
http://www1.dahuasecurity.com/product/productDetail/16141

if you use a mobile device, it will redirect to www. instead of www1. these are two different versions of their website. This is why you're getting page not found errors.

 

[EMPIRETECANDY]

PFA121 - Dahua Technology

I bought it from here when I bought the camera, it was $24.31.

Empire Technology Co., Ltd - Small Orders Online Store, Hot Selling and more on Aliexpress.com | Alibaba Group

Here's a document that shows compatible accessories for camera types.

http://www1.dahuasecurity.com/download/Accessory_Selection_20171123.pdf

very nice pics!! sharp one. price can be cheaper if buy them together, just contact me before buy, lol.