From Shenzhen to Lhasa: A "Fully Charged" Report from the Battery Monitoring System-Industry News

From Shenzhen to Lhasa: A "Fully Charged" Report from the Battery Monitoring System

Publish time : 2026-07-20

The Golmud–Lhasa section of the Qinghai–Tibet Railway is the world’s highest-altitude railway, with the longest route and the longest continuous permafrost stretch. It crosses the Kunlun Mountains and the Hoh Xil uninhabited area, and climbs over the Tanggula Mountains. Along the line, extreme hypoxia, complex geology, and an average altitude exceeding 4,000 meters impose severe demands on the railway’s communication, signaling, and power support systems. Our company has successfully deployed battery monitoring systems at multiple stations along the Golmud–Lhasa section, delivering reliable power assurance for this high-altitude rail artery.

Key challenges:

Extremely long permafrost section – traversing 550 km of continuous permafrost, passing through ecologically fragile areas such as Hoh Xil.

Predominantly unattended stations – of the 58 stations on the Golmud–Lhasa section, 53 are remotely managed unattended stations, accounting for over 90%.

Extreme altitude – average elevation exceeds 4,000 meters, with the Tanggula Pass reaching up to 5,072 meters, accompanied by severe cold and intense UV radiation. The extreme low temperatures and large diurnal temperature swings readily accelerate battery performance degradation, aging, and even failure.

To address these harsh challenges, Relat deployed an intelligent battery monitoring system. Using individual cell monitoring modules, the system tracks key parameters—voltage, internal resistance, temperature, and electrolyte leakage—24/7 for each battery. It provides multiple alarm and analysis functions, intelligently warns of performance degradation trends and potential faults, and enables remote, efficient maintenance. Operators at the central control room can monitor battery health in real time without on‑site visits.

On the plateau, material and human resources are extremely precious. By shifting from "manual patrols" to "data travel," we enable precise intervention at the turning point of battery performance deterioration, greatly reducing the frequency of field inspections under harsh plateau conditions. This project marks a critical step in transforming power management on the Golmud–Lhasa section from "scheduled maintenance" to "condition‑based maintenance." This data‑driven smart maintenance approach significantly lowers operational risks and upkeep costs on the plateau.We salute our engineers. Under the tough conditions of hypoxia and intense UV radiation, they braved the bitter cold and worked with professionalism and dedication, providing the sturdiest power guarantee for the "Sky Road."