Wi-Fi CSI
Wi-Fi CSI
Solution Selection
Overview
Wi-Fi CSI (Channel State Information) is a technology that perceives environmental states by analyzing signal propagation variations during wireless transmission, enabling applications such as health monitoring, activity recognition, and intelligent security.
Realtek WiFi chips support capturing high-precision CSI data from multiple Wi-Fi packet types (e.g., data/management/control frames), including both unicast and broadcast communication modes. Combined with network topologies such as STA/SoftAP/hybrid networks, this enables highly adaptable scenario-specific solutions.
Advantages
Channel information is obtained through standardized APIs and customizable configuration sets (such as subcarrier selection, sampling rate adjustment). It supports topologies like STA/SoftAP/hybrid networking, providing developers with highly flexible scenario-based solutions.
Capable of penetrating walls and furniture to detect activities in obscured scenarios (e.g., human presence through barriers).
Relies on analyzing wireless signal fluctuations instead of capturing images/videos, eliminating privacy risks associated with cameras.
