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題 名 | 單晶片系統故障診斷思考歷程之研究=A Study of Thinking Process on Troubleshooting of Single-Chip Microcomputer System |
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作 者 | 林清芳; 顏晴榮; |
書刊名 | 技術及職業教育學報 |
卷 期 | 8 民93.06 |
頁 次 | 頁81-93 |
分類號 | 448.57 |
關鍵詞 | 單晶片微電腦; 故障診斷; Single-chip microcomputer; Troubleshooting; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究為達成「探究單晶片電路故障診斷的成功因素、分析成功組診斷的思考歷程、研擬單晶片電路系統的故障診斷程序」等研究目的,研究者選取技術學院電機系16位學生,參與三種單晶片電路的故障診斷實驗,並利用錄音錄影方式,以有聲思考(thinking aloud)及原案分析(protocol analysis)法蒐集。經由資料分析結果,提出研究結論如下: 單晶片電路系統故障診斷的成功因素包括專業知識、理解電路、策略的運用、測量技能、電表之運用、元件的判斷、感官評估。單晶片電路故障診斷程序為:故障徵候的判斷、搜尋故障點、確立故障點、執行修復、確立修復、完成檢修。單晶片電路故障檢修行為的次數依序為:在瞭解徵候方面以眼觀的行為次數最多;搜尋故障點方面的行為次數以感官評估及電表測量最多。 在策略的運用方面,成功組以開路法採用的頻率較高,在臆測、質疑、敘述、評估等行為較多。成功組較能掌握電表測量與策略兩者的交互運用;失敗組的故障診斷策略運用較少。學生在進行診斷時,通常會參考電路圖,並將電路的元件及其組成電路融入思考歷程,接著再思考各元件的功能,並從中推斷故障點。由實驗結果顯示,運用此一思考過程,其診斷成功率較高。 |
英文摘要 | There were three purpose of this study; (1) exploring successful factors of trouble shooting diagnoses in single-chip microprocessor; (2) analyzing the thinking precesses of sampling group possessing successful achievement; (3) designing the diagnoses processes of trouble shooting in single-chip microprocessor ciruits. 16 students of Electrical Engineering were sampled to participate the experiments in three types of diagnoses processes of trouble shooting in single-chip microprocessor circuits. Recording their experimental procedures, thinking aloud procedure and using protocol analysis were three main research methods in this study. The conclusion after data analyzing was as following: The successful factors of the diagnoses processes of trouble shooting in single-chip microprocessor circuits consists of professional knowledge, comprehension for circuits, fully taking advantage of strategies, wisely making use of electric meters, judging defining qualities of components, and using sensory assessment. The procedures for diagnoses processes of trouble shooting in single-chip microprocessor circuits are judging symptoms of trouble shooting, searching of trouble shooting points in circuit, firmly determing trouble shooting points, executing repair activities, accomplishing repairing process. The rank of indicated trouble shooting behaviors were that visual behavior was the most judging activity among all and sensory assessment was the most strategy among all while using electric meters ranked the second. The sampling group would mostly adopt open-loop method in taking advantage of stragegy and indicated more trouble shooting behaviors of predicting, interrogation, description, and assessment. The sampling students could successfully and interactively make use of electric meters scaling and trouble shooting strategy. Students would refer circuit diagram and combine defining components features and circuit structures into thinking processes, and then assess the function of every component in circuit to firmly secure trouble-shooting points. The research result indicated that there were more successful diagnoses rate in trouble shooting in single-chip microprocessor while making use of such thinking process. |