Method and arrangement for detecting traffic violations in a traffic light zone by way of vehicle rear end measurement using a radar device

摘要

- 21 Abstract The invention is directed to a method and an arrangement for detecting a traffic violation in a traffic light zone through rear end measurement by a FMCW radar device (1). For this purpose, a vehicle (6) driving through a radar beam (11) of a FMCW radar device (1) whose first outer edge beam (16) horizontally forms an obtuse angle (6) with the roadway edge (21) is measured at its front end (63), flank (64) and rear end (65). The vehicle length (1) is determined from the obtained measurement signals and added to the specific radial distance (re) of the vehicle (6) which is determined close to a stop line (23) through the vehicle rear (66), and a prediction is made based on the vehicle speed about the vehicle front (63) driving over the stop line (23). Fig. 1 (N -~ N I LL N At N {/// N Ii K V /2~A~-' (4 ~ A A "K ~t~~rr / '4-i '-A / ~K. 7 At tt } V * ~ , a r ~-i t -A-,- "'--A4 4 6 N> / N r 'A-A-'-' tN r 1'. r 1 ft -'A I Y '1 //-* 6 1 tVA A Ag, I 7- / ? I'., ,-~ -A I -A p...- '4 ~-. *' V I, A.. (1' ii CM / /~ ~-ri St r