The emergency stop system is composed of a chassis, an antenna box and a trackside tag three parts. When the train is moving, antenna below the headstock will build a specific frequency magnetic field, which is equal to the magnetic fields emitted by mounted antenna, trackside tag will be activated by RF energy from mounted antenna, giving a specific signal, then the signal will be transmitted to chassis through mounted antenna, meanwhile the chassis display, record faults, and make the train emergency brake, which can effectively avoid the accidents caused by manual error.
Each end of the train is installed an emergency stop system, two sets of systems work at the same time independently. The antenna is arranged in the box, and the box is suspended arranged on the special support bracket at both ends of the train, connected with the chassis through the coaxial cable. The system adopts radio frequency identification technology (RFID), working frequency is not conflict with the other frequency at the spot. The tag is installed on the track without power supply. The chassis has two identical units inside, in normal condition only one unit is on. Once fault occurs, system will automatically switch to the other unit; ensuring the reliability of the equipment.