Since its debut in 2014, Changsha Metro Line 2 has carried the highest ridership on the network, peaking at 1.1049 million daily passengers. The intense operational demands posed significant challenges to efficiency and safety. In May 2022, Changsha launched its first large-scale system-wide upgrade project for an operational metro line—Line 2.

Recently, Huafei Technology engineers deployed to the project site to collaborate on nighttime debugging of the Passenger Information System (PIS), achieving the goal of "no disruption to operations during upgrades, and no delays in upgrades due to operations."

This upgrade project features Huafei Technology’s proprietary innovations: industrial-grade intelligent video switching matrices and intelligent power sequencing controllers, which dominate half of the PIS system cabinets. This recognition highlights both the company’s technical prowess and service excellence.

Huafei Technology has contributed to Changsha’s rail projects, including Line 6’s PIS and access control systems, as well as Line 1’s North Extension communication systems. For Line 2’s upgrade, multiple Huafei devices are now integrated into its PIS system. The company remains committed to innovation and excellence, ensuring its ongoing collaboration will shape Changsha’s rail transit future.