| 摘要 |
The invention concerns to an electronic interactive system to give the alarm for an impeding danger along a path, particularly along a road comprising a transmitting element and a receiver element, provided on the vehicle, a device for activating the system and a warning element, said transmitter element transmitting on an established frequency and with an established code, said receiving element decoding the signal emitted by the transmitter element of another vehicle and activating said warning element. |
