Who operates it
- Qianxun Spatial Intelligence Inc. is a joint venture between Alibaba Group and China North Industries Group (Norinco).
- It operates one of the world’s largest commercial CORS-based positioning services in China.
Availability & access
- This is a subscription-based service, available to enterprises and individuals.
- Corrections are delivered via NTRIP and other data service channels, accessible nationwide.
Coverage & scale
- Qianxun manages a vast network with over 2,000 reference stations across China.
- It provides full national coverage and supports billions of connected devices through its high-precision positioning service.
Typical use cases
- Precision agriculture, including autonomous tractors and drone spraying.
- Autonomous driving and intelligent transportation systems.
- Surveying, construction, and mapping projects requiring centimeter-level accuracy.
- Consumer applications such as IoT, location-based services, and smartphone navigation.
How it’s used in practice
- Professional users connect GNSS equipment to the Qianxun correction streams for RTK or PPP-RTK positioning.
- Automotive and IoT devices integrate Qianxun’s SDKs and APIs for seamless high-precision location services.
Notes
- Qianxun is a cornerstone of China’s strategy for mass adoption of high-precision GNSS positioning.
- It is closely tied to BeiDou GNSS and supports multi-constellation corrections (GPS, GLONASS, Galileo, BeiDou).
Coverage Map
