Company Filing History:
Years Active: 2021-2024
Title: Lin Fang: Innovator in Navigation and Positioning Systems
Introduction
Lin Fang is a prominent inventor based in Nanjing, China. He has made significant contributions to the field of navigation and positioning systems, particularly for underwater gliders. With a total of 4 patents to his name, Lin Fang continues to push the boundaries of technology in his area of expertise.
Latest Patents
Among his latest patents is a navigation and positioning system for underwater gliders. This innovative system incorporates a micro-electro-mechanical system inertial measurement unit, a global positioning system receiving module, a triaxial magnetometer, a Doppler velocimeter, and an integrated navigation hardware processing system. The system is designed to stop the underwater glider in real time if a navigation and positioning error becomes too large, switching from the underwater working state to an up floating error correction state. When the velocity and location errors of the GPS/INS integrated navigation system fall below specified thresholds, the glider resumes its underwater operations. To enhance the robustness and adaptability of navigation and positioning, an H∞ Kalman filter algorithm based on an adaptive multiple fading factor has been established.
Another notable patent is a dual-filter-based transfer alignment method under dynamic deformation. This method addresses the challenges posed by dynamic deformation angles that can reduce the accuracy of transfer alignment. The transfer alignment filter is divided into two parts: the first part estimates the bending deformation angle and the coupling angle using an attitude matching method, while the second part estimates a dynamic lever arm through a 'speed plus angular speed' matching method.
Career Highlights
Lin Fang is affiliated with Southeast University, where he continues to engage in research and development in his field. His work has garnered attention for its innovative approaches to complex problems in navigation technology.
Collaborations
Lin has collaborated with notable colleagues such as Xiyuan Chen and Ping Yang, contributing to advancements in their shared field of research.
Conclusion
Lin Fang is a distinguished inventor whose work in navigation and positioning systems has made a significant impact. His innovative patents reflect his commitment to advancing technology in underwater gliding systems.