Design And Implementation Of Transponder Mobile Detection Equipment Based On FPGA

In the process of train operation,it is necessary to ensure the safety of train operation.The transponder is a transmission equipment installed along the railway to send message information to the vehicle subsystem,and it is an indispensable part of the whole signal system security system.Therefore,it is necessary to regular-ly check and repair the transponder to ensure its good working condition and the security of message information.At present,the transponder detection work is completed on the spot by the railway staff carrying the corresponding detection equipment.The mobile detection device of transponder designed in thesis is installed on the electric vehicle,which can detect the transponder and erase the message during the driving process,shorten the erase time of the message and reduce the errors caused by manual operation.The system is mainly divided into two parts:hardware and software.The existing transponder detection equipment is studied,and the basic functions and requirements of the system are defined.On this basis,a feasible implementation scheme is designed.The system is divided into two parts:the vehicle antenna and the vehicle detection equipment.The hardware part of the vehicle detection system is designed,and the peripheral circuits such as ADC sampling circuit and power supply circuit are designed with the core of FPGA.Then the vehicle antenna is designed according to different functions.In the field of software design of FPGA.The key signal processing algorithms are analyzed,and the overall system is designed in detail and implemented by software.After the completion of the code of the FPGA,the logic simulation test of the code is carried out using the Modelsim test platform.Through the test of read-write operation,it is verified that the system can complete the mobile detection of the transponder.In summary,thesis designs and implements the mobile testing equipment of transponder.The proposed equipment can effectively solve the daily testing requirements,reduce labor costs,reduce the risk of personnel on the road,improve the efficiency of maintenance,and has high practical value.