带宽受限下的复合材料缺陷检测及传输网络拥塞问题研究

Research on Composite Material Defect Detection and Transmission Network Congestion Problem with Limited Bandwidth

针对复合材料图像传输网络拥塞情况,本研究基于图像传输任务,提出一套传输带宽分配算方法。首先,根据图像信号对传输带宽进行控制,并设置了基于任务的权重函数,建立了图像传输带宽分配模型。然后采用多目标优化的方法,在总传输量没有超过最大传输带宽条件下,根据权重函数进行带宽分配。最后,通过修改采集到的图像分辨率和帧率实现了对传输带宽的控制,避免了因传输网络拥塞图像失帧的问题。通过将设计的算法运用到实际图像采集中,验证了算法的可行性和实用性。

Aiming at the congestion of composite image transmission network,this paper proposes a set of transmission bandwidth allocation algorithm based on image transmission task.Firstly,the transmission bandwidth is controlled according to the image signal,and the weight function based on the task is set up,and the image transmission bandwidth allocation model is established.Then,the multi-objective optimization method is used to allocate the bandwidth according to the weight function under the condition that the total transmission volume does not exceed the maximum transmission bandwidth.Finally,by modifying the image resolution and frame rate,the transmission bandwidth is controlled,and the problem of image frame loss due to transmission network congestion is avoided.Through the application of the designed algorithm to the actual image acquisition,the feasibility and practicability of the algorithm are verified.