High-speed rail refers to high-speed rail trains with a design speed of 250-380 kilometers per hour. Its signal system consists of dispatching centralized control system (CTC), train control system (CTCS-3 level), station interlocking system (CBI), signal centralized monitoring system (CSM), power supply system, etc. Critical equipment to improve transportation efficiency. With the rapid development of my country's railway transportation, the speed of trains continues to increase and the density of trains continues to increase, which puts forward higher requirements for the reliability and safety of high-speed railway communication signal systems.

The high-speed rail communication base station is an important infrastructure for achieving signal coverage along the high-speed rail line. During high-speed rail operation, frequency offset, frequent switching of signal base stations, high instantaneous network load, and the complex natural environment around the railway can all affect the signal coverage of communication base stations, causing communication interruption, data loss, information transmission errors, and other problems, affecting the quality and reliability of user communication.

Maglev train refers to a new type of vehicle composed of non-contact magnetic support, magnetic guidance and linear drive system. Through the suspended magnetic force, the train will always be suspended about 1 cm above the track and travel in the air, avoiding friction and wear between the vehicle and the track, and has outstanding advantages in running speed, equipment life and energy consumption. The maglev controller of the train is the key equipment to ensure the stable suspension of the train under various conditions, and it is also the core part of the entire maglev train system.

The urban rail transit signal system consists of two parts: the automatic train control system (ATC) and the depot signal control system. It is used for train interlocking, approach control, train interval control, dispatch command, information management, equipment condition monitoring and Maintenance management and other aspects, thus forming an efficient integrated automation system. It is a key system to ensure the safety of train operation, realize the modernization of train command and train operation, and improve transportation efficiency.