Railway signal intrusion detection system based on block chain

The invention discloses a railway signal intrusion detection system based on a block chain, which is based on a distributed chain structure of the block chain and has no trusted control center, thereby avoiding the defect that a centralized intrusion detection center is maliciously attacked and fails, and the distributed structure based on the block chain is adopted, so that the reliability of the system is improved. The possibility that a single intrusion detection center breaks down can be avoided. Besides, the data of the intrusion detection system based on the block chain is difficult to be maliciously tampered, so that the security and availability of the data are ensured, and a consensus mechanism of the block chain is utilized, so that consensus among intrusion detection nodes can be achieved, internal attack is solved, and the situation that the consensus among the nodes cannot be achieved due to internal attack, so that the intrusion detection performance is influenced is avoided; meanwhile, external