Thank you Cynthia for your quick response.

As it looks to me, Synology explicitly supports camera settings:



Help text says:

Please make sure you have configured the related settings on the web-based interface of your camera before you enable this option

my brand new RLC-822A did successfully connect to my synology surveillance station using ONVIF protocol.
Motion detection is configured to be based on camera setting.
Camera configuration has in surveillance - push notification alarm checkmark only for person and car.
But synology recognize motion still on any motion, although unset in configuration mentioned above.

What do i have to configure so that i get only person and car triggering motion