Design And Implementation Of Intelligent Parking Lots Management System Based On ZigBee

With the continuous development of automobile industry, more and more cars appear.More vehicles will need more parking lot, and need more parking Spaces, the existing traditional parking lot management system can not cater to the needs of the growing scale vehicle.Some present defects existing in the parking lot are listed specifically as follows:First, the car need to park to swipe when enter the parking lot, once the number of parking cars is too much the park entrance will be congestion;Second, when the car entered the parking lot, people cannot find parking Spaces that can be stopped quickly and accurately, time is wasted, the efficiency of the parking lot is also reduced seriously;Third, the management will be difficult if the number of cars is too large in the parking lot, the safety of the car also has hidden dangers;Fourth, the parking fee is artificial, so it is difficult to avoid error.Considering these deficiencies existed in the traditional parking lot management system, an intelligent parking lots management system based on ZigBee was put forward. This system can help the parking lot realize intelligent and efficient by ZigBee wireless network technology and the optimal algorithm of data processing. The data information are collected and transmissioned to the database through the sensor.Then the database allocates the optimal parking space to make every car can park efficiently, and can expend intelligently, ensuring the parking lot can be managed efficiently and orderly.In the license plate image acquisition and recognition system,the license plate images are collected through digital camera OV7620,then use the license plate recognition method based on support vector machine (SVM),and the user’s information and enter-time are saved to the database for queries.Greatly shorten the users’waiting time for parking,making parking more convenient;The sensor module circuit applys CC2530, has the characteristics of low power consumption and high sensitivity, satisfy the function of wireless sending and receiving information and testing. VS2010 environment design software is used in the parking state monitoring and management system, ZigBee technology is used to form a wireless sensor network,then the parking status information collected in infrared sensors TCRT5000 are transmission to the coordinator through ZigBee node using wireless communication technology,making the PC monitor the overall operation of the parking lot in real time;The algorithm will be improved in the best parking guidance system,in the condition monitoring nodes using sensors for data acquisition,PC system allocate the optimal parking space through the wireless information transmission after analyzing processing,Cooperate with STM32,the recommend parking information will be displayed to the users through the LCD screen,making every car can park efficiently and ensure the parking lot can be efficient and orderly management.In view of the parking lot node layout, ZigBee coordinator, routers and terminal nodes of program design and program download are completed,and the information for each function of nodes are configured,The system communication and anti-interference performance are test and analyzed. The experimental results show that through the background management system, this system can manage the parking station of the parking lot timely, and can collect effective information of the license plate by image processing, and LCD control circuit can guide vehicle, realize the purpose of the intelligent management of the parking lot.