Local streaming wireless camera?

I dunno if it is an actual thing or not i don't have experience in networks or cameras, but in my graduation project i need a wireless camera that can stream (locally) without internet so i can process the stream coming using opencv, i can provide mobile hotspot for it but without data, i don't care much about resolution 720p fine by me, but i need it with short focal lens (as i need the distance between object and the …

computervision streaming wireless