Electronic toll collection (ETC) on board unit on-line issuing system combining mobile terminal

The utility model relates to the ETC technology field, in particular to an ETC on board unit on-line issuing system combining a mobile terminal. The system is characterized in that the issuing data of an on board unit is pre-stored in a far-end server, a dedicated short range communication (DSRC) device is connected with the mobile terminal, and the on board unit is awakened by the DSRC device; the mobile terminal obtains the issuing data real-timely from the far-end server and is communicated with the on board unit via the DSRC device, and the far-end server carries out the issuing operation on the on board unit via the communication channels of the mobile terminal and the DSRC device. By the system of the embodiment of the utility model, the issuing data can be obtained from the far-end server real-timely, and the on board unit can be updated, thereby avoiding the situation that the secret keys operating the on board unit are stored in the issuing devices respectively, and improving the security of the secret key mediums and the convenience of an issuing business.