基于CAN总线的停车场智能引导系统

Intelligent Guidance System of Parking Lot Based on CAN

为了提高停车场的信息化和智能化管理水平,提出了基于CAN总线的停车场智能引导系统,系统分三级管理层,每一级的节点均采用嵌入式处理器LPC2129作为控制核心,利用超声波测距模块HC-SR04检测车位和车道上的车辆有无。当有车辆驶入停车场的每个交叉路口时,会自动触发车辆引导管理器并向中央控制器发送信号,中央控制器根据当前停车场的使用情况运算得出最优空车位,并反馈行驶路线给车辆引导管理器,通过LED屏显示指示箭头引导车辆,大大提高了停车场车位的使用率,降低了管理成本;当车辆泊入或者泊出车位时,车位发布管理器会及时更新LED屏上的剩余车位数量等信息。同时该系统为其他高级停车场综合管理系统集成和扩展提供了方便的功能接口,具有很好的开放性。

In order to improve the informationi and intelligence management of parking lot, an intelligent guidance system of parking lot based on CAN is proposed and composed of three levels management structure, and each node uses embedded processor LPC2129 as the control core, using ultrasonic ranging module HC-SR04 to detect the vehicles information of parking and road. When there is a car going into near crossroad of parkig lot, it automatically triggers vehicle guidance manager and sends signal to central controller, after that, the central controller can figure out the best parking according to usage of current parking lot and feedback route arrow to vehicle guidance manager by LED screen, which improves the usage rates of parking lot and reduces administration cost. When cars pull in or out, parking release managers renew the remaining number of parking spaces on LED screens. Meanwhile, the system provides convenient function interface for integration and expansion of other advanced parking management systems.