VPRS Model for Mobile Phone Test Procedure

應用變數精準粗略集於手機測試程序之研究

許志華(Jyh-Hwa Hsu) ； 姜台林(Tai-Lin Chiang) ； 王慧君(Huei-Chun Wang)

《工業工程學刊》 23卷4期 (2006/07) Pp. 345-355

https://doi.org/10.29977/JCIIE.200607.0009

摘要

個人無線通訊在通訊產業是一快速成長的領域，由於製造技術進步，導致縮短產品的生命週期及預期上市時間。顧客期望以較低的價格購買功能較多的產品。在手機製程中，無線頻率(Radio Frequency; RF)功能測試程序相較於其他製造程序需要較多的操作時間。因此製造商需要有效的方法，在RF功能檢測品質不變下，減少RF 測試項目、縮減檢測時間。變數精準粗略集(Variable Precision Rough Sets; VPRS)是資料探勘的重要工具之一，目前已被廣泛應用於知識獲取。本研究利用VPRS減少手機製程中RF功能測試的項目，實驗結果顯示雖然測試項目顯著減少，但利用保留下的測試項目所構成的新測試程序，其檢測準確率非常接近原測試程序。此外，和決策樹方法比較，VPRS也有較佳的檢測績效。

關鍵字

資料探勘 ； 無線頻率功能測試 ； 變數精準粗略集 ； 決策樹 ； 手機

並列摘要

Personal wireless communication is one of the fastest growing fields in the communications industry. The technology employed by mobile telecommunications is rapidly growing with shorter product life cycles, a shortening of time to market expectations, and a higher customer expectation of more capability for less cost. In mobile phone manufacturing, the radio frequency (RF) functional test process needs more operation time than other processes. Manufacturers require an effective method to reduce the RF test items so that the inspection time can decrease, but still the quality of the RF functional test must be maintained. The Variable Precision Rough Sets (VPRS) model is a powerful tool for data mining, as it has been widely applied to acquire knowledge. In this study the VPRS model is employed to reduce the RF test items in mobile phone manufacturing. Implementation results show that the test items have been significantly reduced. By using these remaining test items, the inspection accuracy is very close to that of the original test procedure. In addition, VPRS demonstrates a better performance than that of the decision tree approach.

並列關鍵字

data mining ； RF functional test ； VPRS ； decision tree ； mobile phone