【作者】 朱振中；

【导师】 陈向东；

【作者基本信息】 西南交通大学 ， 信号与信息处理， 2013， 硕士

【摘要】 随着人民生活水平的提高,汽车逐渐走进千家万户。近年来,我国私家车保有量不断攀升,随之车辆停放问题逐渐成为突出的社会问题。随着微计算机技术的发展,传统的停车场管理系统已不能满足实际应用需求。现有的停车场管理系统存在的问题主要有：无法对车辆进行定位、没有实时监控功能等。针对以上停车场中存在的问题,考虑到私家车大部分时间停的地点比较固定,通常停在自家小区停车场中,设计了面向智能化小区的停车场管理系统。论文着重讨论了智能化小区停车场网关部分的设计与实现。本网关的协调器模块主要接收从ZigBee网络发来车辆信息。协调器模块使用CC2530芯片,接收数据后以串口的形式传送给网关的主控制器模块,主控制模块会记录每辆车的信息和收到此信息时的时间戳。当主控制器模块收到车门被非法打开的信息时,通过TC35短信模块发送短信报警和蜂鸣器模块报警,只有当输入正确的密码后,蜂鸣器才会停止报警。正常情况下主控器模块也会把每辆车的信息发送给服务器,方便了管理人员对车辆的监控。如果ZigBee网络出现异常情况,主控制器模块长时间没收到该车的信息时会产生该车的告警并通过以太网发送给服务器端,这样可以及时通知管理人员对ZigBee网络进行检查。在主控制器模块,选用S3C2440A芯片为硬件开发平台。根据该芯片外围电路对u-boot和Linux内核进行了移植,还涉及到了内核驱动程序的开发。根据系统的功能需要对内核进行了相应的裁剪,减小了内核的体积,加快了内核的启动速度。在应用层的软件设计中采用模块化设计实现了所需要的全部功能,并添加了看门狗程序,提高了系统的可靠性。最后,对整个系统进行了模拟测试,结果表明所设计的网关能够有效地解决车辆管理和实时报警等问题。更多还原

【Abstract】 With the improvement of living standards, automobile is entering thousands of households. In recent years, the increasing of private car park in China leads to serious social problem of parking, and traditional parking management system cannot meet the needs of modern computer technology. For the present parking management system, it is difficult to look for parking spaces, unable to realize real-time location and no real-time monitoring functions exist. In order to avoid these parking problems, a new intelligent parking management system is designed in considering that the parking area of private automobile is often fixed, such as car park in residential quarter.This paper mainly discusses the design and implementation of the gateway part of the intelligent parking area. Based on ZigBee communication protocol, which use CC2530chip for receiving information, coordinator node is transmitted to main controller module of gateway in the form of serial ports, and main controller module records every car’s information and time stamp. When the main controller module receives the information of the door unlocked illegally, the alarm will send through TC35SMS module and a buzzer module. Only when correct passwords are input, will the alarm stop. Under normal circumstances, main controller module will send every car’s information to the server, which is convenient for the management control of the vehicle. In abnormal conditions of ZigBee network, main controller module doesn’t receive car’s information for a long time, alarm will generate and be sent to server through the Ethernet network. Thus, management staffs will be informed in time and check ZigBee network problem.In the main controller module, choose S3C2440A chip as development platform. According to the on-chip peripheral circuits, here, u-boot and Linux kernel are transplanted, and the kernel driver procedure is modified. According to the function of the system, the kernel is cropped correspondingly, leading to the decrease of kernel volume, increase of kernel start speed, and realization of all required functions in application layer.The software design of application layer adopts modular design which achieves all the necessary functions and adds a watchdog program to improve the reliability of the system.Finally, simulation test of the whole system is completed, and the result shows that the designed system can effectively resolve the problems of automobile management and real-time monitoring.更多还原