The invention discloses a
simulation method for vehicle-mounted
bus message data, relates to the technical field of
data transmission, solves the technical problems of congestion and resource waste in a
data transmission process caused by the fact that the same
processing is not carried out under the conditions of multi-dimensional classification and
high load, and aims at solving the technical problems of congestion and resource waste in the
data transmission process by breaking through the existing single-dimensional classification. Multi-dimensional management of messages is realized through four-level classification of
byte length, function scenes,
delay requirements and necessity, differential strategies are designed for load normal and abnormal scenes, when the load is normal, the transmission efficiency is improved and the compressed long message bandwidth is reduced through ID priority
ranking and long message compression, and when the load is abnormal, the compressed long message bandwidth is reduced. Stable transmission of key messages is ensured through key message
bandwidth reservation and non-key message grading
processing, an independent bandwidth
pool is distributed for the key messages by adopting a total
bandwidth reservation and ID priority rigid sorting mechanism, and priority transmission of the key messages under
high load is ensured through
physical layer arbitration.