Abstract: A modular omni-directional sensor array (MOSA) enclosure is provided for visual surveillance. The MOSA enclosure is disposable on an elevated position and includes a lower equipment module and an upper optical module. The equipment module contains electrical power and control electronics and is disposed on the elevated position from underneath. The optical module contains a plurality of cameras viewing radially outward. The optical module is disposed onto the equipment module from above.

Abstract: An attachment mechanism is provided for connecting a trunnion shaft to a pivoting platform. The mechanism includes a bracket, a block, a polygonal terminus attached to the trunnion shaft, a pair of bolts and fasteners. The bracket has a center recess and flanking surfaces parallel to the pivoting platform. The block has a cutout notch. The polygonal terminus inserts into a gap formed between the recess and the notch. The pair of bolts extends through the bracket and the terminus, and inserts into the block. The plurality of fasteners attaches the bracket at the facing surfaces to the pivoting platform.