| 摘要 |
This invention relates to a warning system for use on board a motorized road vehicle (12). The warning system includes an activity detector (20) that detects an RF signal emitted from a mobile phone (26) when a person driving the motorized vehicle is communicating over the mobile phone (26). The warning system also has a display device (14) in communication with the activity detector (20), the display device (14) providing a visual indication to a motorist of another vehicle near the motorized vehicle in traffic, in a manner that allows the motorist of the other vehicle to ascertain when the person driving the motorized vehicle is using the mobile phone (26). |
