Development of Wire Electrical Discharge Machining Control System Based on Cloud Service A cloud service control system is developed to address the intelligence and interoperability of Wire electrical discharge machining(WEDM). The system adopts a modularized structure with cloud server, client and machining terminal. The cloud server mainly executes NC code interpretation, trajectory interpolation and other calculation processes. The client realizes data transmission between the user and the device through the humancomputer interaction interface on the server. And the machining terminal is used to control the movement of axis motors and the operation of various auxiliary equipment This structure transforms the control mode from the traditional synchronous mode to the asynchronous mode. Experiments show that the proposed method is indeed effective in improving adaptability and maneuverability of WEDM. It simplifies the hardware structure and reduces computation load of the processing terminal by using cloud service, which can help to reduce the maintenance cost. The developed method improves the intelligent control of WEDM and compatibility with the goal of Industry 4.0.

Development and Application of MES Based on Cloud Platform for Steel Structure Enterprises In recent years, manufacturing execution system (MES) has been widely used in the manufacturing industry. MES plays an important role in supporting enterprise workshop management. However, generalized MES cannot be applied well in steel structure enterprises due to the particularity and complexity of steel structure enterprises. This paper takes into account the production characteristics and needs of steel structure enterprises and an MES structure based on cyberphysical system (CPS) is proposed. This architecture includes the physical layer, the network layer and the application layer. The cloud platformbased MES system was applied to a steel structure enterprise in Changchun, China, and the functions of each module were introduced in detail. The MES can effectively improve the informatization level of the enterprise, creating a transparent, informative and intelligent production environment for steel structure enterprises. The developed MES can improve resource utilization, reduce enterprise costs, improve product quality, and lay the foundation for steel structure enterprises to found intelligent factories.