Qianxun Spatial Intelligence (Qianxun SI) provides high-precision GNSS RTK (Real-Time Kinematic) positioning services, base stations, and hardware receivers used for surveying, agriculture, and smart navigation.Overview of Qianxun GPS/GNSS TechnologyCore Services: Operates a vast ground-based augmentation system with thousands of reference stations delivering centimeter- or millimeter-level positioning accuracy.Multi-Constellation Support: Tracks global satellite signals including GPS, GLONASS, Galileo, and BeiDou (BDS).Popular Hardware Models:Q600 / Q300: Advanced receivers featuring over 1,500 channels, rugged IP67/IP68 builds, and inertial navigation support for areas with poor network coverage.SE / SR Series: Portable dual-frequency RTK base and rover systems offering high update rates and tilt survey capabilities.