Vehicle warning method and apparatus

摘要

A method and apparatus for issuing warnings to drivers of vehicles (mobile units) in case of traffic violations (anomalous behaviour). By narrow region communication between a gate side communication apparatus (G-COM) and a mobile unit side communication apparatus (M-COM) passing through an on-road real gate at a road junction, the G-COM assigns a real identification code (R-ID) ID1 including an intersection number to the M-COM after receiving a R-ID IDO which has been assigned from the M-COM. Meanwhile, time series pictures of the intersection including all real gates are taken by a camera 15 installed to assign a virtual identification code (V-ID) to a mobile unit passing through a slit, corresponding to a real gate, in pictures by processing them. In response to the assignment of the R-ID, the R-ID is brought into correspondence with (matched with) the V-ID. The mobile unit is tracked and when an anomalous behaviour (e.g. illegal manoeuver) thereof is detected in pictures, warning information is transmitted to the M-COM using the corresponding R-ID. By gathering sets of ID0 and ID1 associated with each other at a plurality of road junctions, a mobile unit which has displayed an anomalous behaviour is tracked.