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研究生:張政崙
研究生(外文):Cheng-Lun Chang
論文名稱:微算機8051系統太陽能電池供電與太陽能電池充電之佇列模型可行性分析和軟硬體設計
論文名稱(外文):The Feasibility Analysis of Queueing Model, Hardware and Software Design for a Microcomputer 8051 System Powered by Dual Rechargeable Batteries Charged by Solar Cells
指導教授:白英文白英文引用關係
指導教授(外文):Ying-Wen Bai
學位類別:碩士
校院名稱:輔仁大學
系所名稱:電子工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2001
畢業學年度:89
語文別:英文
論文頁數:71
中文關鍵詞:微算機8051系統太陽能電池充電電池佇列模型軟硬體設計低功率程式設計
外文關鍵詞:Microcomputer 8051 SystemSolar CellRechargeable BatteryQueueing ModelHardware and Software Designlow power programming design
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行動電腦在今天的應用越來越重要,但是,由於電池能量的限制,這些系統的操作時間或充電週期有非常限制。因此,我們先提出一個太陽能電池對雙充電電池充電的行動電腦系統之佇列模型。我們獲得其操作時間比單充電電池系統要長的多,另外,從太陽能板中獲得的電池充電率和一般操作的電池放電率兩者的比值越高,則操作時間越長。此外,其技術趨勢顯示典型行動電腦的電源消耗正在減少而典型太陽能板電源產生的效率正在增加。再者,我們提出一個8051微算機系統之太陽能電池供電的雙充電電池設計與建構,由雙充電電池系統充放電佇列模型可行性分析中我們知道,雙充電電池設計的操作時間能夠長於單一充電電池設計,而且在2/3的利用率時,我們可以獲得4倍的操作時間。最後,我們由軟體的觀點出發,在8051單晶片組合語言、C語言及C語言和組合語言混合中各寫出五個功能特性不同基準測試程式,並且在執行時間、程式編譯碼、機械週期(Clock Cycle)、電流消耗上做各個測試程式的數據量測,最後在能量(W-sec.)上我們得到了一個將近5倍的平均改善率,這個表示我們在能量的消耗上可以改善近5倍的功率消耗,在我們強調低功率、低電源的觀念上是十分有價值的節流方法。因此,在未來以太陽能電池為充電電源的雙充電電池8051微算機系統將會是可行的。

Mobile Computers are becoming increasingly important in today’s applications. But, due to the limitation of battery energy, these systems only have very limited operation time or recharge cycles. Thus, in this paper, we propose a queueing model for a dual rechargeable battery in a mobile computer charged by solar cells. We learn that the operation time can be much longer than that for a single rechargeable battery power supply. In addition, the higher the ratio between the battery charging rate from solar cells and the battery discharging rate from a typical operation, the longer the operation time. Moreover, we propose a design and an implementation for the software and hardware of a microcomputer 8051 system powered by a dual rechargeable battery that is charged by solar cells. From the feasibility analysis of the queueing model for the stochastic charging and discharging process of the dual battery system, we learn that the operation time in our design can be much longer than that of a single rechargeable battery power supply. Finally, we propose some specific low power programming design methods in order to reduce the power consumption for extending the recharge cycle. Our experimental results show that the pure assembly programming and the mixed mode of the assembly and high level programming language can provide the potential to reduce the power consumption and extend the recharge cycle. In our experiment, there are five typical programs with different benchmark functions of each version in the module of an 8051 assembly, a mixed mode of the assembly and C language. Overall, the experimental results show that we have obtained a scalable performance of up to five times improvement in energy reduction due to the efficiency of assembly language. This improvement also provides a potential to extend the operation time or recharge cycle of up to five times for a microcomputer system; therefore, a microcomputer system powered by solar cells with a limited ability of power generation can be feasible in near future.

中文摘要……………………………………………………………….1
英文摘要…………………………………………………………………2
誌謝………………………………………………………………………4
目錄……………………………………………………………………5
圖目錄…………………………………………………………………8
表目錄…………………………………………………………………11
第一章緒論……………………………………………………………12
1-1 佇列模型的分析……………………………………………12
1-2 8051系統軟硬體建構……………………………………13
1-3 低功率程式設計……………………………………………13
第二章太陽能雙充電電池供電的行動電腦佇列模型可行性分析....15
2-1 行動電腦電源消耗和太陽能板電源產生的技術趨勢……15
2-2 雙充電電池的充放電狀態佇列模型………………………18
2-3 太陽能板供電行動電腦可行性分析的估計……………23
2-4 雙充電電池系統的操作時間和利用率的關係……………26
第三章8051微算機系統之太陽能板雙電池的設計與實驗………29
3-1 太陽能電池供電的微算機8051系統軟體設計……………29
3-2 太陽能電池供電的微算機8051系統硬體設計…………….31
3-3 實驗測量資料………………………………………………35
第四章低功率程式設計應用在太陽能8051微算機系統…………40
4-1 Amdahl’s Law………………………………………………40
4-2 測試程式的功能說明及流程………………………………42
4-2-1 測試程式一(LED燈的左移右移)…………………43
4-2-2 測試程式二(計數器)………………………………46
4-2-3 測試程式三(5×7點矩陣LED顯示)…………………48
4-2-4 測試程式四(找出1到100的質數)…………………51
4-2-5 測試程式五(兩個5×5的矩陣相乘)…………………54
4-3 C語言和組合語言測試程式實驗數據比較………………56
4-3-1 執行時間……………………………………………57
4-3-2 程式編譯碼…………………………………………59
4-3-3 機械週期……………………………………………60
4-3-4 電流消耗……………………………………………61
4-3-5 能量(W-Sec.)…………………………………………62
4-4 低功率程式設計應用在利用率u.t.和操作時間的分析……65
第五章結論……………………………………………………………66
5-1太陽能雙充電電池供電的行動電腦佇列模型可行性分析….66
5-2 8051微算機系統之太陽能板雙充電電池的設計與實驗……66
5-3 低功率程式設計應用在太陽能8051微算機系統…………67
5-4 未來的研究方向……………………………………………67
參考文獻………………………………………………………………69

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