机场特种车辆作业过程碰撞预警系统研究-机械电子工程专业论文.docxVIP

中国民航大学硕士学位论文摘 中国民航大学硕士学位论文 摘 要 随着机场飞机数量的迅速增加，为飞机服务的特种车辆也越来越多。为了避免机场 特种车辆与飞机之间发生碰撞，有必要研究机场特种车辆碰撞预警系统。 本文针对机场特种车辆作业过程中出现的飞机与特种车辆可能发生的碰撞问题，设 计了机场特种车辆碰撞预警系统。该系统以GPS、GPRS和GIS技术为基础，根据距离跟踪 原理对即将发生的碰撞进行检测与预警。文中对特种车辆的碰撞预警系统进行了碰撞检 测的建模，在碰撞检测过程中，采用了改进的GJl(算法，对动态信息进行预处理，降低 了碰撞检测的计算量，提高了碰撞检测的效率，改善了碰撞检测的实时性。通过实验， 验证了该碰撞预警系统的可行性。 为了实现对特种车辆的精确定位，本文采用差分GPS定位系统来提高定位精度，此 外，还利用了基于MapX组件的GIS开发，实现了对特种车辆的动态监控。针对实际应 用中需要满足不同类型飞机碰撞预警的要求，本文根据不同类型飞机的实际大小尺寸建 立了不同的飞机坐标数据库。 最后，本文对特种车辆上移动终端的报警单元进行了硬件设计。设计出了以单片机 AT89S52和语音芯片ISD25120为核心的语音报警电路，实现了特种车辆的碰撞预警。 关键词：碰撞检测；距离跟踪；GIS；GPS；差分定位；GJK算法 中国民航大学硕士学位论文Abstract 中国民航大学硕士学位论文 Abstract With the rapid development of the aircraft scale，more and more airport support vehicles ale needed to work on the airport and airport support vehicles become busier than before．In order to avoid the collision accident between aircraft and airport support vehicles，it is necessary to research collision detection and prediction system for airport support vehicle． A collision detection system is designed in order to reduce the collision accident between aircraft and airport support vehicles when the airport support vehicle is severing airplane based on distance tracking．GPS，GPRS and GIS technologies are utilized in the system．It sets up a model for the collision detection system in the paper．In the collision detection algorithm,the advanced GJK algorithm is adopted and the dynamic information is pre—processed before collision deteetion，which results in the reducing of the computational complexity and the raising of the collision detection efficiency and the real-time character of algorithm．The system is verified to be feasible by experiments． The system uses differential GPS to enhance the positioning precision for airport support vehicles．In addition,it realizes dynamic supervision of airport support vehicles by making use of GIS based on MapX component．In order to realize the collision detection for different type of airplane，different airplane position database ale desig