The Dynamic Information Guidance System Of Intelligent Parking

Our country has entered the automotive era.However,with respect to the explosion of private cars,the construction of the parking lot still lags behind.Moreover,most charge-management-oriented parking lots have some problems more or less: driving around lack of direction,difficult-to-park;congestion resulting parking dispute;inefficient parking guidance;uninterrupted lighting and high energy consumption problems.These problems are particularly apparent in large parking lots.Faced with the above problems in the existing parking lot management system,this paper designs a set of intelligent parking dynamic information guidance system to alleviate the difficulties of parking.The paper determines the guiding strategy and regional division method,improves the traditional Dijkstra algorithm and using it to plan route,and also designs a set of dynamic information guidance hardware devices to achieve system function.Here is the detailed description:1.We use the "regional guidance,pick your space" as the system parking guidance strategy,with weighted non-directional map to establish a large underground parking lot road network model and divide the parking lot.2.The traditional Dijkstra algorithm is optimized by restricted within sector,greatly reducing node calculation of path planning algorithm and significantly lifting computational efficiency.Thus,the defects of large calculation amount and low efficiency in Dijkstra algorithm is resolved and we can use the Dijkstra algorithm of sector constrained in system path planning.3.We completed the circuit design of parking detectors and regional vehicle monitors and other hardware equipments,to detect parking status,monitor regional traffic and control lighting.Furthermore,parking lights indicating the location of the available parking spaces are designed so that drivers can choose parking spaces after they enter the target parking zones.We also set out the system communication rules and instruction formats.In order to improve the communication capability and stability of the system ZigBee wireless network,the ZigBee gateway is used to link up the regional communication network in the parking.4.The design of the main program in lower computers and function subprograms is completed with IAR EW430,the function and interface design in host computer management softwares is completed in the integrated development environment of Visual Studio 2008 and the data table structure design is with SQL Server2008 database technology.5.We have construct micro-public platform to realize pay-in-parking and utilize the license plate recognition technology to achieve non-stop in and out,facilitating the traffic through entrance.With the two-dimensional code technology,drivers can positioning spaces by scaning code and reversed car search in the parking lot.The intelligent parking dynamic information guidance system has been successfully partial used in a large underground car park in Zibo City,Shandong Province,and achieved good parking guidance effect,high customer satisfaction;greatly reduced the lighting energy consumption;to enhance the parking level of intelligent management and automated operation efficiency;achieved good social value and economic value.