Web Cam development using SBC

Hi,
I am in initial development of R&D Project for video Security Survillance project.
I have written a middle ware in Java for two Single Board computers (SBC).
I want to connect webcam for boards.
I will be sending commands from our middleware to invoke the functions of camera ( like, On, OFF, Zoom, Pan, Tilt etc.,)
Tells me good camera in which the firmware can be used by our middleware.

Thanks
M. Prev Ravanth