Patent ID: 7068675
Filing Date: 2006-06-27
Classification: E02F,G05B,H04L

Abstract:
1. A method of controlling communications among a plurality of electronic devices in a construction machine, which comprises steps of: connecting first and second electronic devices of the plurality of electronic devices through a multiplex transmission serial communication line, the multiplex transmission serial communication line supporting communications by a plurality of different communication protocols, the first and second electronic devices respectively using at least one of different first and second communication protocols, and the first and second electronic devices being arranged within a construction machine; allocating a first frame format to the first communication protocol of the first electronic device and a second frame format to the second communication protocol of the second electronic device, the first and second frame formats having a different header length; transmitting information from the first and second electronic devices along the multiplex transmission serial communication line using the first and second communication protocols of the first and second electronic devices with the allocated first and second frame formats; and identifying the first and second communication protocols in communications on the multiplex transmission serial communication line by the different header length of the first and second frame formats, thereby enabling coexistence of the communications by the plurality of different communication protocols on the multiplex transmission serial communication line.