Device using public wireless communication network to transmit traffic information

The utility model provides a device using a public wireless communication network to transmit traffic information. The device provided by the utility model comprises an embedded data processing module, a wireless communication module, a power supply and an antenna, wherein, the power supply supplies power to both the embedded data processing module and the wireless communication module which are used for data exchange; and the wireless communication module receives and sends wireless signals through the antenna. The device provided by the utility model has the advantages of strong reliability and easiness in mounting and maintenance, retains hardware and software of an original wire communication system, and has obvious advantages in construction and operation stages compared with an original wire communication manner.