关键词: 调度通信, 量子密钥分发, 异或中继, 共纤传输

Abstract: Aiming at the security of information transmission of dispatching communication service in railway communication system, quantum communication with higher security protection capability is applied to the encryption of business data transmission in railway trunk line dispatching network. The key technologies include quantum key distribution technology, XOR relay technology and co-fiber transmission technology. Taking into consideration the dispatching communication network topology, the network structure of quantum encryption for railway trunk dispatching communication is designed by deploying quantum devices at each dispatching business system node, so as to improve the security and transportation efficiency of train dispatching, freight dispatching and other services in the dispatching system.

Key words: dispatching communication, quantum key distribution, XOR relay, co-fiber transmission