The safe decoding method for the transponder message comprises the following steps: S1, receiving a message code stream sent by a transponder antenna and printing a timestamp on the message code stream; s2, searching a complete first scrambling code message from the received message code stream; s3, recording data of a specific code bit in the first scrambling code message; s4, decoding the first scrambling code message to obtain a user message; s5, generating a corresponding first code for the data of each code bit in the user message; s6, performing inverse solution on the user message based on the data of the specific code bit to generate a second scrambling message; and S7, based on the first check code in the first scrambling code message and the second check code in the second scrambling code message, generating a corresponding second code for the data of each code bit in the user message, and providing the second code for the vehicle-mounted train control system to use. The invention also provides a safe decoding system for the transponder message. According to the invention, the security and timeliness of transponder message decoding can be ensured.
一种应答器报文的安全解码方法,包含步骤:S1、接收应答器天线发送的报文码流并打上时间戳;S2、从接收的报文码流中查找完整的第一扰码报文;S3、记录所述第一扰码报文中的特定码位的数据;S4、对所述第一扰码报文进行解码得到用户报文;S5、为所述用户报文中每个码位的数据生成对应的第一编码;S6、基于所述特定码位的数据对用户报文进行反解,生成第二扰码报文;S7、基于第一扰码报文中的第一校验码、第二扰码报文中的第二校验码,为用户报文中每个码位的数据生成对应的第二编码并提供给车载列控系统使用。本发明还提供一种应答器报文的安全解码系统。通过本发明能够保证应答器报文解码的安全性和时效性。
Method and system for safely decoding transponder message
一种应答器报文的安全解码方法及系统
2023-01-13
Patent
Elektronische Ressource
Chinesisch
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