Based on the technical reserves and core knowledge achievements accumulated over the years, a full set of solutions for electrified railway power supply system and subway power supply system are proposed, including solutions for railway motion signal box transformer system and urban rail transit environment monitoring system, which helped in the construction of China's electrified railway and China's urban rail transit.

The rail transit system consists of vehicles, civil works and electromechanical equipment. The electromechanical equipment includes power supply system, ventilation, air conditioning and heating system, water supply and drainage，fire protection system, fire alarm system, environment and equipment monitoring system (BAS), etc.