Research On The Key Technologies Of Smart Parking Guidance System For Large Car-park And System Development

In our large and medium-sized cities,Hard parking has become a increasingly serious socialproblem.Parking guidance system of car park aims to improve the information symmetry between thethe supply of parkings in car park and the demands to the parking for motorists to alleviate theproblem of hard parking.Now the researches of parking guidance system at home and abroad aremainly concentrated in the passive guidance outside the car park,and lack of active guidance inside.Then,in the theoretical researches of parking guidance inside the car park.Scholars focused on theparking path planning and the choice of parking.The researches are mainly based on the staticproperties of roads and parkings,such as the width of road,the distance between the parking and thecar park entrance, etc.While ingnoring the dynamic impact factors such as road traffic and so on.Firstly,this paper research and analysis the motorists’ demands for parking information,Andproposes a smart parking guidance system of large car park.This system can realize the city parkingguidance outside car park and precise parking lot guidance within the car park.The system is designedto guide motorist to complete parking task fast and safely.Then,according to service function of the parking guidance system,construct the basic frameworkof the system.And each component modules and system workflow are also elaborated; Research andanalysis the factors which influence the rapidity of parking behavior within car park.Combined withpath distance and road access quality properties,A model for optimal parking path planning based onDijkstra algorithm is presented.Based on the analysis of factors that influence the parking spacechoice,combined with driving, walking indicators, a model for optimal parking choice ispresented;Realized the combination with self-developed485bus-based multi-level parkinginformation gathering network system and ultrasonic parking space detector.Complete thedevelopment of the parking guidance system for large car park.Finally,The results of the studies in this paper are applied successfully in Nanjing OlympicCenter’s large car-park.And realize the intelligent parking guidance.After six months of trialoperation,achieved good results,And lay the foundation of providing good parking services by YouthOlympic Games Stadium in2014.