Product quality inspection combining with structure light system, data mining and RFID technology

Abstract

3D vision inspection has been rapidly developed and increasingly applied in product quality inspection. Structure Light System (SLS) is one of these technologies with good performance and lower cost. To achieve the automated quality inspection, a decision support system is required to provide with the SLS together to automatically perform the quality check. However, for extracting quality information, the quality inspection system has to be combined together with a data logging system, so that the quality information of the product is available for production query and quality checking. In this paper, Radio Frequency Identification (RFID) technique is used to accomplish the production tracing and tracking together with the quality inspection system. By assigning a RFID tag to each inspected part, it is possible to identify the type of the product and write the quality inspection result decided by the data mining classifier for the real-time quality query. The proposed approach will be an alternative for SMEs considering the fast product type update with respect to the fast changing market.