基于LED 的水下光无线通信技术探究

Research on Underwater Optical Wireless Communication Technology Based on LED

随着科技的不断发展,人们在水下作业的次数呈现逐渐增加的趋势。在水下的测试中,450~550 nm波段蓝绿光线的透出率相对较高,并且在海水的影响中,LED具有发散和热阻较低的特征。因此,探究LED水下光无线通信系统的设计与实现具有重要的价值。基于此,探究LED水下光无线通信技术,在确定LED水下光无线通信特征的基础上,分析系统的结构以及软件和硬件电路系统。完成系统测试后发现,发射和接收阶段达到测试目标,并且溶解盐浓度对测试结果并无显著影响,而悬浮颗粒浓度在40 g/m3以上时则容易造成丢帧,影响信息传输。希望通过分析可以为LED水下光无线通信系统的设计提供借鉴。

With the continuous development of science and technology,the number of people in the underwater operation presents a gradual increase in the trend,in the underwater test,450~550 nm band blue-green light transmittance is relatively high,and in the impact of seawater,LED has the characteristics of divergence and low thermal resistance.Therefore,it is of great value to explore the design and implementation of LED underwater optical wireless communication system.Based on this,this paper explores the LED underwater optical wireless communication technology.On the basis of determining the characteristics of LED underwater optical wireless communication,the structure,software and hardware circuit system of the system are analyzed.After completing the system test,the system was tested,and it was found that the test target was reached in the transmitting and receiving stages,and the concentration of dissolved salt had no significant impact on the test results,while when the concentration of suspended particles was above 40 g/m3,it was easy to cause frame loss and affect the information transmission.It is hoped that the analysis in this paper can provide reference for the design of LED underwater optical wireless communication system.