Regulation breaking detection method and device

The embodiment of the invention provides a regulation breaking detection method and device. The method comprises the steps that position information sent by a vehicle-mounted terminal of a first vehicle is acquired, wherein the position information comprises geographic position of the first vehicle and the direction angle of the first vehicle; whether the first vehicle is in an intersection induction range or not is detected according to the geographical position, obtained this time, of the first vehicle; if yes, it is determined that the first vehicle enters a first intersection in the intersection induction range; if the first intersection is in a red light time period, first direction angle deviations between the direction angle, obtained this time, of the first vehicle and the direction angle, obtained last time, of the first vehicle is calculated; after the first direction angle deviations in the red light time period are obtained, if the proportion of second direction angle deviations in the first direc