Day/Night profiles with sunrise/sunset times changing

[Spooling]

Hey guys;

How do you deal with day/night profiles when the sunrise and sunset times change, especially with daylight savings time changes? I have a schedule for day/night modes setup in my 4mp Dahua camera, but they become out of sync with sunrise and sunset times. Is there any sort of solution to this issue?

 

[Euly]

I typically base my profiles on my phone's Wunderground app (Weather Underground) that provides First Light/Sunrise/Sunset/Last Light, but fine tune it, adding 15 minutes to the time I think should be perfect. The the amount of day light subtracts every day by about one minute, counting down till December (forgot what day, but it's the darkest day of the year) and then adds back up till July (I think). The 15 minutes I add is so I won't have to change the profiles for another 15 days. I'm not a meteorologist, so feel free to blast me for my ignorance. That's my stupid "some guy on the internet" theory. Seems to work though.

 

[fenderman]

There is a scrip out there that someone authored that will do this..Here is a slightly modified version of the code by @dalepa
https://docs.google.com/file/d/0B1UKFw49wspfR1FGa1kzSElNN3c/edit
This is for hikvision cameras, but may be useful if you know how to modify it.

 

[Spooling]

OK, thanks for the info. Between this and the post regarding getting this working on Hikvision cameras using curl, I'll see if I can figure something out.

 

[Rhodesy]

Hi guys,

Right I'm getting pretty good in my Dahua settings and Blue Iris and thngs are going so well that I need to now fine tune DST's to fine tune it. But as the OP suggests, my Duhua Day/Night modes will shift out of sink with Sunrise & Sunset.

Has there been any progress on this since the original 2015 post?

 

[fenderman]

Hi guys,

Right I'm getting pretty good in my Dahua settings and Blue Iris and thngs are going so well that I need to now fine tune DST's to fine tune it. But as the OP suggests, my Duhua Day/Night modes will shift out of sink with Sunrise & Sunset.

Has there been any progress on this since the original 2015 post?

Yes new dahua firmware can change it based on the sensor for some models or better yet bp2008 has a Windows service thst does it relative to sunrise sunset...

 

[Rhodesy]

Well 3 years on folks, I'm dragging this back up.

I have exactly the same problem. I do not want to have to adjust each camera for civil twilight.

What I really want is a NPT civil twilight clock that relates to my location and which I can point my DAHUA cameras too.

Failing that, meanwhile, I created the attached spreadsheet. For my location, I took the sunrise and sunset times for the 1st day of every month in my location over a 12 month period.
I then calculated the average as shown.

I input the average into my cameras today. However as can be seen by my spreadsheet, I also calculated the average time discrepancy with the actual sunrise/sunset for that time of month. It is not great!

Has anybody got a more accurate less time occupying method please?

 

[fenderman]

Well 3 years on folks, I'm dragging this back up.

I have exactly the same problem. I do not want to have to adjust each camera for civil twilight.

What I really want is a NPT civil twilight clock that relates to my location and which I can point my DAHUA cameras too.

Failing that, meanwhile, I created the attached spreadsheet. For my location, I took the sunrise and sunset times for the 1st day of every month in my location over a 12 month period.
I then calculated the average as shown.

I input the average into my cameras today. However as can be seen by my spreadsheet, I also calculated the average time discrepancy with the actual sunrise/sunset for that time of month. It is not great!

Has anybody got a more accurate less time occupying method please?View attachment 34349

See post above

 

[looney2ns]

Well 3 years on folks, I'm dragging this back up.

I have exactly the same problem. I do not want to have to adjust each camera for civil twilight.

What I really want is a NPT civil twilight clock that relates to my location and which I can point my DAHUA cameras too.

Failing that, meanwhile, I created the attached spreadsheet. For my location, I took the sunrise and sunset times for the 1st day of every month in my location over a 12 month period.
I then calculated the average as shown.

I input the average into my cameras today. However as can be seen by my spreadsheet, I also calculated the average time discrepancy with the actual sunrise/sunset for that time of month. It is not great!

Has anybody got a more accurate less time occupying method please?View attachment 34349

bp2008/DahuaSunriseSunset

 

[Rhodesy]

Thanks guys, sorry fenderman I hadn't seen you previous post.

Well I downloaded it and i "add camera", how do I then tell the camera to use the sunrise/sunset time?

 

[looney2ns]

Thanks guys, sorry fenderman I hadn't seen you previous post.

Well I downloaded it and i "add camera", how do I then tell the camera to use the sunrise/sunset time?

Dahua day/night switch utility - DahuaSunriseSunset

 

[Rhodesy]

Thanks Looney, that's a useful thread you linked me to