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Because of complex in digital manufaturing, person's actions in workshop digital manufaturing are very important, so CNC system and manufaturing mode must be adptive to situation in workshop. In this paper, we put forward a new method used in CNC system about wireless communication technologies. Two kinds of wireless communication techologies including Wi-Fi and bluetooth, we put emphasis on bluetooth wireless commnication technology. There are lots of problems about development of bluetooth wireless commnication CNC control system, the idea of developing the Windows CE-based Open-architecture CNC system is proposed in this paper. We must focus on real time control of CNC system about blue wireless comminication, so we analyze the system architecture and its real time performance about wireless communication, and application about bluetooth wireless communication in a Windows CE.NET-based software architecture of this system is also presented. Finally the developing plan of blue wireless communication is discussed emphatically.

Two wireless communication technology standard are analyzed including the common bluetooth technology and IEEE802.1, they were compared firstly at same time in this paper. Further we analyse bluetooth protocol system structure and bluetooth protocol stack, protocol stack is the core part of bluetooth technology realization, it ensures the connection between the device and data exchange and security. Bluetooth protocol stack adopts event-driven multithreading operation mode, the bluetooth configuration, application model configuration corresponding agreements, procedures and their combination order, so these meet the demand of equipment. Meanwhile MC and DC bluetooth communication realization process of WS-CNC are studied, the design application includes two parts, one runs in DC side, the other part of the running in MC, design the communication protocol, through experiment, obtains the DC and MC bluetooth communication results, so that realizes the importent part of the flexible manufacturing unit (the workshop HMC), thus fulfilling the workshop agility, rapid organization, to better support the man-machine coordinated, effective coping workshop dynamic production environment.

Real-time control is very important in CNC system. Ther are lots of problems about development of control system, The idea of developing the Windows CE-based Open-architecture CNC system is proposed in This paper. With the characteristics and trend of Open-architecture CNC system, we must focued on real time control of CNC system, so we analyze the system architecture and its real time performance, and a Windows CE.NET-based software architecture of this system is also presented. Finally the developing plan of device driver on the operating system is discussing emphatically.