为了实现对船模航行轨迹及其漂角信息的自动测量,设计了一套基于激光二维扫描仪的船模航行轨迹实时测量系统,主要包括激光二维扫描仪、三维电子罗盘、无线通信模块、数据采集及处理软件4个部分。扫描仪固定在河道岸边对船模靶标进行实时测量获得船模的位置信息,电子罗盘固定在船模上实时监测船模的俯仰、翻滚、航向角信息,两部分数据分别通过以太网通信与无线模块传输回计算机。基于MFC架构数据处理软件系统,设计靶标数据处理算法,综合两部分数据对船模靶标中心进行实时拟合与补偿,并在交互界面上实时绘制出船模航行轨迹,计算其漂角数据。实验结果表明,测量系统可以在较大测量范围内满足现场测量±8 mm的精度要求,准确绘制出船模的航行轨迹,为船模通航试验的检测与控制等研究提供了很好地试验方法。
To realize automatic measurement for the ship model trajectory and its drift angle,a kind of 2D laser scan-ner based real-time trajectory measurement system for sailing ship model is proposed .The system consists of four main components:2D laser scanner, 3D electronic compass, wireless communication module, and data acquisition and process software.The scanner fixed on the bank measures the target of the ship model to localize the ship model, at the same time the compass fixed on the board monitors the pitch , roll and heading angle of the ship model , and the measurement data are transferred to the computer via Ethernet and wireless network.Based on MFC, the data pro-cessing software system and the target data processing algorithm are designed , fitting and compensating the target cen-ter with the real-time data are carried out, the real-time trajectory of the ship model on the interactive interface is drawed, and the drift angle is calculated.The experimental results show that the measurement system can satisfy the accuracy requirements in the test site, which is ±8 mm in a large measurement range, it can map out the trajectory accurately, and that provides a good experiment method for detection and control of ship model navigation test.