Autonomous vacuum cleaners are self-operating devices equipped with sensors, mapping algorithms, and smart control systems to clean indoor spaces with minimal human intervention. Core technologies include Simultaneous Localization and Mapping (SLAM), AI-driven path planning, adaptive suction mechanisms, and obstacle detection using LIDAR and ultrasonic sensors. These devices are increasingly applied across residential, commercial, and industrial environments. Patent analysis shows advanced maturity in sensors and mapping systems, while cleaning method innovations and data processing remain in early stages. Market readiness is high for consumer use, with ongoing improvements focused on multi-surface adaptability and autonomous decision-making.