基于MEMS仿生矢量水听器的测距避障声纳系统设计

Design of Ranging Obstacle Avoidance Sonar System Based on MEMS Bionic Vector Hydrophone

设计研制了一种基于MEMS仿生矢量水听器的高效、经济的测距系统。该声纳系统采用收发分置的主动工作方式,单片机控制电路作为整个系统的核心部件,具有小体积、低成本、高精度、定向发射、定向接收,不受恶劣天气影响等优势。开展了测距声纳系统设计及集成研究,确定了主动声纳信号的参数和声纳收发装置,完成了软硬件的设计。在室内水池和室外海洋环境中完成了该系统的测试,实验结果表明,该测距声纳系统具有很好的测距功能,测距精度较高,具有广阔的应用前景。

In recent years, the water transport efficiency and traffic safety problems become increasingly serious. This paper presents a design with implementation of an efficient and economic ranging system based on MEMS vector hydrophone. The system adopts active pulse ranging method and uses the Single Chip Microcomputer （SCM） as the core control device. The key features of the system are smaller size, lower cost, higher accuracy, directional transmission and directional reception, and not affected by the haze weather. The tests of the avoidance sonar were conducted in pool and sea. The test results show that the ranging sonar system has good ranging function and high ranging accuracy, showing a good application prospect.