Study in system simulation of the service core process planning based on the 4S shop

In order to achieve the virtual manufacturing (VM) technology, we need to carry out different aspects of scientific research^[1]. This paper focuses on the virtual production planning in the manufacturing enterprise. The reasonableness of production planning program is evaluated by the Witness simulation software and data prediction. Finally, that will make out the balance of logistics, energy and time; eliminate bottlenecks problems in discrete production systems; find out the optimal solution by the theory of TOC and green performance; improve efficiency and assess a variety of the equipment and process design.