For those who are using this I just noticed that as of 1st July 2019.
The number of API calls on the free plan has been reduced, from 2000 calls to 1000 calls.
My Cloud Stream account is free for 2 days of storage. I took a look at the stats, and the number of plates per month average 3700, and this on a quiet residential street.
One of the problems I have with OpenALPR is the recurring recording of a parked plate; a car enters the street triggering the motion event, and OpenALPR tags the truck's plate parked down the street, or a shadow or a cat strolls, any motion event can cause the parked plate to record. Their help forum didn't help much, but it is a free service.
DLONG, yes, uses processing power to constantly "read" the parked plate. I tried customer service, and was told "it needs to constantly evaluate the video" so I asked regardless of motion detected or movement? and the answer was to just "mask out the area if it bothers you". While I get its a FREE service, there are people who ARE paying for it, and I know they are getting the same results as the 'free' service so I just lowered it to 2 cores instead of all 12.
Mask out in openaplr software. Go to video. Mask an area. Just draw over the plate. But remember if the car moves out of the masked area it’ll start over. So block a good portion of that area.