Abstract：Based on the theory of AVB protocol, a test bench with 360° surround view of BMW G38 was established with RAD_Galaxy as core.A series of message data were collected by Vehicle Spy, and the message structure and interaction process were analyzed by Wireshark to obtain the key information of received messages. The automotive ethernet delay was evaluated and analyzed by processing and calculating the timestamp. The results show that the theoretical delay value can be analyzed based on the successful capturing and cracking of the message data of the surround view system and the AVB protocol. The time delay analysis method for the captured messages on the test bench is applicable to the time delay analysis of all ethernet messages.
HU B Q, QIN G H, LIU Y, et al. Automotive network in next generation: the present situation and development of automotive Ethernet technology\[J\].Computer Engineering and Application,2016,52(24):29-36.（in Chinese）
［2］
CHARLES M，KOZIEROK C C,ROBERT B，et al. Automotive Ethernet: The Definitive Guide \[M\].America: Intrepid Control Systems, 2014.
WU L Y, QIN G H, YU H. Anomaly detection method for in-vehicle CAN bus based on random forest\[J\]. Journal of Jilin University (Science Edition), 2018, 56(3): 663-668. （in Chinese）
WANG H Z, XU J Q, HU H S. Real-time scheduling algorithm for multi-function vehicle bus event arbitration\[J\]. Journal of Jilin University (Science Edition), 2015,53 (5): 963-968. （in Chinese）
MENG X K, ZHANG Q P, ZHANG H W. Research on the development and test method of in-vehicle ethernet technology\[J\]. Automotive Electrical Appliances, 2019 (5): 40-44. （in Chinese）
［6］
ALDERISI G, IANNIZZOTTO G, BELLO L L . Towards IEEE 802.1 Ethernet AVB for advanced driver assistance systems: a preliminary assessment\[C\]∥ Emerging Technologies & Factory Automation (ETFA), doi：10.1109/ETFA.2012.6489775.
［7］
SCHNEELE S,GEYER F. Comparison of IEEE AVB and AFDX\[J\]. Digital Avionics Systems Conference, doi：10.1109/DASC.2012.6382405.
［8］
RUMPF S, STEINBACH T, KORF F, et al. Software stacks for mixed-critical applications: consolidating IEEE 802.1 AVB and time-triggered ethernet in next-generation automotive electronics\[C\]∥2014 IEEE Fourth International Conference on Consumer Electro-nics. Berlin ：IEEE, 2014: 14-18.
LUO F, XU J P. Optimization of time synchronization protocol based on vehicle environment \[J\].Chinese Journal of Scientific Instrument, 2019,40 (2): 96-104. （in Chinese）
LI J C, LIU Y, HU J J, et al.Test and analysis of transmission delay based on vehicle TTEthernet\[J\].Electromechanical Technology,2015(5):106-109. （in Chinese）
［12］
COHRS T, TREYBIG L. Array microphones and signal processing within an ethernet-based AVB network\[C\]∥2016 IEEE 6th International Conference on Consumer Electronics.Berlin： IEEE, 2016: 145-148.
2020, Vol. 41 
