Blockchain Based Train-ground Communication of CBTC System

Abstract

In existing Communication Based Train Control (CBTC) system, there are many information security threats especially in train-ground communication, so information security protection methods of CBTC system are designed. For reasons of increasing information security, blockchain technology is used to train-ground communication of CBTC system. Based on blockchain technology, CBTC system information security testing environment is set up. Testing results demonstrate that the train-ground communication information security of CBTC system based on blockchain overcomes the single-point failure of centralization key management, and doesn't influence the real time of CBTC system.