Application of network system based on small and medium enterprises
                                                          ZHANG Yao1,2, HUANG Wen guang1,2, ZHANG Si qi3, JIN Ji min1
（1.Zhejiang Institute of Mechanical & Electrical Enginering, Hangzhou 310053, China；2.Zhejiang Research Center of Sliding Bearing Engineering Technology, Hangzhou 310053, China；3.Magneto Media Co., Ltd., Melbourne 3000, Australia）

Abstract: In order to solve the problem of workshop network in small and medium enterprises, the network topology, networking mode, CNC equipment networking and data acquisition system were studied. According to the requirement of workshop equipment network, a network system for small and medium enterprises was proposed, four kinds of network modes of workshop NC equipment were summarized, the basic software module and design idea of the digital control equipment networking and data acquisition system were expounded.The idea and implementation method on the communication system of the DNC computer of the workshop and CNC equipments, management module and data acquisition and processing module were proposed in detail. The results indicate that the distributed, heterogeneous equipment network and its software system designed for small and medium enterprise workshop can meet the needs of enterprise operation, can significantly improve the utilization rate of CNC equipment, and improve product quality.

Key words: numerical control equipment; networking mode; communication interface; data collection