Title: Mobile Statistic Process Control e-service supported with wireless PDA and digital calipers

Authors: Pingyu Jiang, Dinghong Zhang, Zhiguang Li

Addresses: State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China. ' State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China. ' State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China

Abstract: This paper deals with describing an e-service driven SPC model for the closed-loop quality control in a machining process. Digital calipers are used to sample the real-time measuring data and linked to the above SPC prototype service module. Wireless Personal Digital Assistants (PDAs), as client-side support, are used to run the SPC service module and to realise the on-site Quality Control management. In addition, both the correlative analysis of signals and the fault trees construction according to potential quality goal parameters play a very important role in searching the certain fault sources to influence the quality goal parameters. In order to verify the method and technology proposed in this paper, a running example is also given.

Keywords: statistical process control; SPC; mobile computing; e-services; personal digital assistants; wireless PDA; digital calipers; quality control; machining.

DOI: 10.1504/IJMPT.2008.019770

International Journal of Materials and Product Technology, 2008 Vol.33 No.1/2, pp.20 - 36

Published online: 30 Jul 2008 *

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