MULTIPLEX TRANSMISSION SYSTEM

摘要

PURPOSE:To improve the transmission efficiency of data by collecting simultaneously the data, from plural multiplex nodes on a network and checking data error accurately. CONSTITUTION:A data area of a frame to be sent is divided in advance corresponding to transmission data of a master multiplex node and relevant transmission data of a slave multiplex node making data transmission in response to a transmission request. Thus, the data area of the frame is divided and data are sent from each multiple node to the relevant data areas in a prescribed order and the slave multiplex node generates a CRC code based on the transmission data of its own station and a CRC code based on the reception data and the master multiplex node generates a CRC code based on the transmission data of its own station and a CRC code based on the reception data. Then error is checked for the codes. For the purpose, a common multiple bus 18 is provided with computers 11-13 for engine, anti-lock, traction and transmission use and vehicle velocity sensors 14-17.