Hello,
I am new here and would like to share you a trick I have just found (maybe it has already been mentionned before)
I had problems because of insects at night attracted by PIR triggering the motion detection
I also had problems with rain .. triggering also the motion detection ..
Thanks to zoneminder (Great Software!!) I found a solution for this :
I setup my motion detection to trigger only if at least 3 frames are alarmed frames ..
As those rain frames or bugs frames are usually single .. the motion detection is not triggered anymore
What is great is that it also solve another probleme linked to my camera which was sending sometimes corrupted frames which also triggers motion detection ...
Hope this help;
phico