The invention discloses a network-based pipeline all-position
welding control system, comprising a master
control unit (4), wherein the master
control unit (4) is used for outputting
welding parameters of each spatial feature points by a
control network, transmitting data, such as positions, speed, torque and the like by the
control network and a
welding tractor system, and simultaneously transmitting aperiodic data, such as, configuring parameters, state information and the like between the
control network and the welding
tractor system; all procedure parameters of a
motion control system are transmitted to the master
control unit (4) through the control network; a welding
tractor traveling control unit (11) is used for performing interpolation calculation to obtain a welding parameter of a current spatial position; and a
welding power supply (3) is used for calculating matched wire feeding speed and performing
arc welding by using the welding parameter of the position so as to realize the continuous variation of the
welding process parameters. The network-based pipeline all-position welding
control system disclosed by the invention is simple in structure and reliable in operation, and can be used for realizing the computer-based integrated control over a pipeline
welding process and realizing the cooperative control over all subsystems through the control network, and thus, the welding quality and the welding speed are increased.