| 摘要 |
The invention relates to an onboard unit for a traffic telematics system, comprising: a first communication module, designed for near-range radio communication with a first external communication device, a second communication module, designed for far-range radio communication with a second external communication device, and a non-volatile memory, which can be accessed both by the first and the second communication module, wherein each communication module has a power-supplied communication mode and a powerless or power-saving rest mode, and wherein the power supply of the memory during an access thereto is effected by the accessing communication module. The invention further relates to an onboard system for a vehicle comprising such an onboard unit, and to a communication device for said system. |
