The System Realization Of Statistical Process Control Based On LAN Form And Position Error

Nowadays, most modern manufactories turn to the management modes of international manufacturing enterprises to gain their competiveness and to meet their customs variety of needs. Though Statistic Process Control theory (SPC) is widely used in industrial modes, people are still searching for the method of how control the statistics of certain elements that influence the quality of products.Statistical Process Control is useful and effective in product quality control of machining operation. Along with the advancement of technology, the technical background of traditional statistical process of quality control has changed. SPC improves the method of quality control in traditional statistics control process, and make it to a fuller use.This essay proposes a method of how to count and control form errors during processing based on error asses technique. By exploiting the design concept of software engineering and in order to optimize the control process of form and position precision, I completed the system schema design, information flow design and the setup of knowledge model. This essay also illustrates the influence of the knowledge acquisition of statistical form and position precision, arithmetic modeling of feature statistics, proper option of control chart and environmental factorsThis essay suggests measures of data transfer, process and management based on LAN, for the purpose of improving the statistics control of data processing and managing. It gives out a modeling of LAN database, traditional enterprises'LAN management methods with a new periphery real-time data collecting, internal web transfer and real-time control program, database system combined with real-time memory data buffer and history database, data-interface model and data collecting model, the schema of the utility of database in LAN, database's maintenance, query, data report, remote data transfer, control chart, and can finally analyze and warm.