Display method of guidance information on parking message sign boards based on fuzzy control theory

Aiming at the actuality that dynamic parking message signs on variable parking message sign boards of current most of Parking Guidance Information System(PGIS) are comparatively simplex,the method that information display is offered by fuzzy control theory is discussed.Synthetically considering all sorts of factors including current parking space in the park,current entrance rate and exit rate,the distance of parking message sign boads from the park,etc.,the reasonable information display including the color of red,yellow and green is decided by fuzzy reasoning based on aforehand given rules,which will offer efficient,accurate and humanistic parking guidance,and also balance the load between the parks from the angle of systemic management.