| 摘要 |
Information system for a traffic network (1). Information of importance to travellers is transmitted by a transmitter system (3) to data receivers (pagers) in vehicles (2) making use of the traffic network. The traffic network is broken down into information regions (6). The transmitter system transmits information modules (5) which each relate to an information region and which are characterised by a region-identification code (ID1, ID2 etc.). The information system comprises means for transmitting, upon entry by a vehicle of an information region, to the data receiver in said vehicle the region-identification code of said region, the data receiver setting itself using said region-identification code for receiving information characterised by said region-information code, transmitted by the transmitter system. The region-identification code in the data receiver may be set using regional or local beacon transmitters (4) which transmit one or two region-identification codes. |
