CCTV and other kinds of security cameras have a strong big brother vibe, but for many of us that may be because we don’t really understand or know how the footage they pick up ever gets used. Today, a startup called Spot AI that’s built a system to help answer that question at least in part — it provides a cloud-based analytics system that “reads” that footage to get insights about not just security, but also safety and operational activity — is announcing $40 million in funding to grow.