基于航空遥感图像灾害区域定位系统设计

Design of Disaster Area Positioning System Based on Aerial Remote Sensing Images

灾害发生时为缩小所获取定位区域与实发区域间的位置误差,提升遥感灾害定位的实时准确性,设计基于航空遥感图像灾害区域定位系统;选取关键的遥感定位信号,借助CC2430/2431结构,将其分享至航空传感器协调器、增强型8051内核两类元件应用结构之中,完成灾害区域定位系统的硬件执行环境搭建;按照遥感影像区域计算法则,完成直角坐标系的旋转变换,再通过检测图像边缘的方式,完成基于航空遥感的灾害区域图像处理;在此基础上,设置区域修正节点与遥感盲节点,以用于验证定位指令的执行有效性,联合上级硬件设备结构,实现基于航空遥感图像灾害区域定位系统的应用;实例分析结果表明,在X轴、Y轴两个方向上,航空遥感图像定位系统所采集到的灾害区物理坐标值均与实发区域坐标值较为接近,与ZigBee型定位系统相比,确实能够缩小误差值结果,实现对灾害发生区域的准确定位。

In order to reduce the position error between the obtained positioning area and the actual area,the real-time accuracy of remote sensing disaster positioning is improved,a disaster area positioning system based on aerial remote sensing image is designed.The key remote sensing positioning signals are selected and shared with the application structures of aerial sensor coordinator and enhanced 8051 core with the help of CC2430/2431 structure,so as to build the hardware execution environment of disaster area positioning system.According to the calculation rule of remote sensing image area,the rotation transformation of rectangular coordinate system is completed,then the disaster area image processing based on aerial remote sensing is completed by detecting the image edge.On this basis,the regional correction node and remote sensing blind node are set to verify the effectiveness of positioning instructions,and the application of disaster regional positioning system based on aerial remote sensing image is realized by combining the upper hardware structure.The example analysis results show that in the X-axis and Y-axis directions,the physical coordinate values of the disaster area collected by the aerial remote sensing image positioning system are close to the coordinate values of the actual disaster area.Compared with the ZigBee positioning system,it can reduce the error results and realize the accurate positioning of the disaster area.