Audio video bridging(AVB) communication process involves a large amount of data, and each packet of AVB data can reach thousands of bytes. When unmanned vehicles are divided by the concept of domain, the communication between domain systems will cause the huge amount of datas transferred to the decision-making layer and the extremely low processing efficiency due to the huge amount of datas transmitted by AVB and the fast transmission speed, the actual decision-making layer only needs to process the payload datas in the AVB. In order to ensure that the effective datas required for decision-making layer are only the effective datas of each packet of AVB, design a Hash address filtering algorithms and improved sliding window algorithms to extract the payload datas, and use a virtual communication and physical communication method to strip the proposed effective the data is sent to the decision-making layer. This method reduce the amount of datas processing at the decision-making layer effectively, improved its datas processing efficiency, and meet its datas real-time processing requirements.