bob体彩_bob体育竞技_bobApp应用首页由车载机箱、车载天线箱以及地面标签三部分组成。列车行进过程中，安装于车头下方的车载天线会建立一个特定频率的磁场，当列车驶近地面标签时，地面标签被车载天线发出的射频能量所激活，发出特定的信息并通过车载天线箱传送至车载机箱。车载机箱显示并记录故障情况的同时，使列车紧急制动，可有效避免由于人为操作失误所造成的事故。

    在列车的两端各安装一套bob体彩_bob体育竞技_bobApp应用首页，两套系统同时且独立工作。车载天线箱内装有天线，箱体悬挂安装于列车两端底部的专用支架上，并通过同轴电缆与车载机箱连接。系统采用射频识别技术（RFID），工作频率不与现场其他频率冲突；地面标签安装于轨道内，无需电源供电。车载机箱内安装有两个完全相同的单元，正常情况下仅一个单元工作，一旦发生故障，系统自动切换到另一单元工作，保证了设备的可靠性。 

      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.