【作者】 张鹏；

【导师】 于飞；

【作者基本信息】 青岛科技大学 ， 控制科学与工程， 2015， 硕士

【摘要】 北斗卫星导航系统是我国重要的战略基础设施,其关键作用是提供时间和空间基准及所有与位置相关的实时动态信息,也成为体现现代化大国地位和国家综合国力的重要标志,如何利用北斗卫星导航系统保障我国的国民经济建设安全发展成为了研究热点。为了发挥北斗导航系统的特性,更好的保障海上渔业从业人员安全和提高海上执法效率,本文对基于北斗导航和长距离ZigBee通信的海洋渔业监控系统进行了如下研究：第一,由于海洋渔业监控系统需要海上定位功能,所以本文基于扩展Kalman滤波模型,采用了一种单频GPS/BDS组合RTK解算方法,该方法使用GPS L1、BDS B1频点的伪距和载波相位观测值,对对流层延迟采用测站天顶延迟估计,并与流动站位置以及GPS、BDS站间单差模糊度组成双差观测方程进行卡尔曼滤波,得到单差模糊度浮点解及方差阵。利用思修SX-UM220-DB2/GPS北斗卫星定位导航开发板采用和芯星通UM220双系统高性能GNSS模块验证解算方法可行性;第二,配合和芯星通公司的北斗船载终端,设计研制了无线终端,该设计对北斗船载终端硬件功能进行了扩展,实现了多串口数据转发,增加了无线AP功能以及WDS桥接功能,扩大了海洋渔业监控系统的覆盖面。实验结果表明,该无线终端具有良好的稳定性,并且利用无线终端的WiFi模块增加了手持终端无线接入北斗导航系统的功能；第三,基于北斗船载终端,按照海上通信距离设计长距离ZigBee通信的要求,和远程数据GPRS发送要求,参与设计了北斗智慧终端,并对GPRS模块驱动进行编程。通过增加无线终端和智慧终端,与现有的船载终端配合使用,搭建了海洋渔业监控系统,保障渔业安全。本文所提出的相关定位精度和实时通信满足海上渔业安全的要求。更多还原

【Abstract】 As a strategic infrastructure of our country, Beidou satellite navigation system is playing a key role in providing time-space datum and the real-time dynamic position related information. Making use of Beidou satellite navigation to ensure the safety of the national economic construction of our country has been becoming research focus. Based on the character of Beidou satellite navigation system and long distance ZigBee communication in Fishery, this paper conducts the following study.Firstly, in order to solve the problem of maritime positioning, based on extended Kalman filter model, this paper proposes a kind of combination RTK solution method for a single-frequency GPS/BDS, which uses the pseudorange and the observed value of carrier phase to make zenith delay estimation for troposphere delay. And based on the result of Kalman filter of the double difference observation equation for the composition of the rovers and the blurriness between the stations of GPS and BDS, this paper obtains a single difference ambiguity float solution and covariance matrix. Using the SX-UM220-DB2 GPS/Beidou satellite navigation development board and dual system of high-performance GNSS module of BDstar Navigation UM220. calculating method is proven to be feasible.Secondly, cooperated the shipborne terminal, this paper designs the wireless terminal, which is designed to extend shipboard terminal hardware functions to achieve the multiple serial data transfer. This design increases wireless AP function and WDS bridging function, which expanded the coverage of the fisheries monitoring system.Experimental results show that the wireless terminal has good stability, and the use of the wireless terminal WiFi module makes a handheld wireless terminal be taken in Beidou navigation system.Finally, Based on Beidou ship terminal, according to the requirements of maritime communication long distance ZigBee communication design, and the requirements of sending remote data with GPRS, this paper designs beidou wisdom terminal.By the two terminals, this paper set up the marine fishery monitoring system to ensure the safety of the fishery.All the relevant position precision and real-time communication proposed in this paper can meet the requirements of the marine fishery safety.更多还原