A variety of robotic solutions are used, including four-legged robots for flexible patrolling in small to medium-sized areas, drone systems for terrain-independent surveillance in medium-sized to large areas, wheeled robots with all-terrain capability for medium-sized to large areas and communicators as a digital reception service with versatile and multifunctional functions. Drive types, equipment options and sensor technology are constantly evolving and, if suitable, are finding their way into the portfolio of security robotics companies.