Design of Wireless Transmission Encryption System for Vehicle Mounted Railway Track Inspection Data
During the transmission of vehicle-mounted railway track inspection data in operation,with the increase of transmission data,there is the shortage of unreasonable layout in local area network,resulting in the decline of data transmission capacity and se-curity.A wireless transmission and encryption system for vehicle-mounted railway track inspection data is designed.The data wireless transmission encryption system framework is composed of the on-board equipment,DMS,wireless communication module,data re-ceiving antenna and data receiving device.Multiple wireless access points(Aps)are used to build a local area network,which is linked to the on-board wireless transmission network in real time and carries out the data transmission for the railway track inspection.With the support of the system framework,the system hardware and software are designed respectively.The system hardware is mainly di-vided into three levels of the business logic,data analysis and wireless communication.The system software mainly uses the advanced encryption standard(AES)to encrypt the patrol data,obtain the corresponding digital signature,and transmit the encrypted data through the wireless network.The system application test proves that when the transmission time is 5.0 s,the wireless data trans-mission speed of this system is 423 Mbps;When the number of encryption times is 5,the data encryption coverage rate of this system is 94％;The maximum packet loss rate of the system is 6.9％,with the minimum value of 3.6％,indicating that the system has a good data transmission capability for on-board railway track inspection,good data encryption performance,and fast transmission speed.
vehicle-mountedrailway trackpatrol datadata transmission wireless transmissiontransmission encryptionlocal area network
万方数据
维普
