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研究生:許黃德
研究生(外文):Huang-Te Hsu
論文名稱:個人電腦瞬間開機的機制設計與改良
論文名稱(外文):Design and Implementation of an Instantaneous Turning-on Mechanism for PCs
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:2007
畢業學年度:95
語文別:中文
論文頁數:67
中文關鍵詞:數位家庭瞬間開機待機耗電量省電個人電腦消費性耗電量半導體匯流排
外文關鍵詞:Digital homeInstantaneous Turn-onSuspend to RAMPower Consumptionstaticdata
相關次數:
  • 被引用被引用:7
  • 點閱點閱:295
  • 評分評分:
  • 下載下載:48
  • 收藏至我的研究室書目清單書目收藏:0
近年來數位家庭(Digital Home)造成了大量的數位家電需求,部分的數位家電採用個人電腦架構,數位家庭使得這些個人電腦藏身在家中的不同角落。因此,以個人電腦為基礎的數位家電,瞬間開機變成一個重要的功能。
個人電腦開機時,系統從硬碟機載入大量的資料,從開機進入到作業系統過程,所需時間大約40秒到90秒。改善的方法有幾種,第一、增加硬碟機效能。建立磁碟陣列(RAID- Redundant Array of Independent Disks),或者加大硬碟機的快取記憶體以改善硬碟機的效能,受限於硬碟機機械式儲存結構,這些改善對開機速度的幫助有限。第二、以系統待機機制(Suspend to RAM)取代實體關機機制(System off),以解決漫長開機過程的等待。關機時將作業系統寫入系統記憶體中,等待下次開機時,從記憶體載入,利用記憶體的高速傳輸縮短開機時間,以實現類似消費性電子產品的瞬間開機。
由於待機時將作業系統儲存在動態記憶體(DRAM)中的緣故,需要額外的待機電源以提供記憶保持資料,我們重新設計電路,以減少個人電腦的待機耗電。首先,我們使用互補金屬氧化物半導體(CMOS)為電源開關,防止晶片和模組之間的靜態漏電,並且在通用序列匯流排(USB)、PS/2介面鍵盤、滑鼠及網路的開機功能關閉時,關閉USB、PS/2介面以及網路晶片的電源。其次,我們關閉了待機時記憶體模組的終端電阻電源。第三,以高效率的脈波寬度調變電壓調節器(Pulse Width Modulated Power Regulator)取代線性電壓調節器。第四,我們加大參考電壓準位的分壓電阻值,以減少漏電電流。綜合以上這些改良,我們可以將系統待機耗電量降到0.7W以下,並且在開機3秒以內,將作業系統從記憶體中重新載入。
In recent years, the “digital home” has created a need for many electronic home appliances. Some of them are redesigned from PCs and have made the physical PC invisible everywhere in our living environment. Thus "system standby all the time" has become an important feature for turning on a PC instantly.
When a PC is turned on, it takes 40 to 90 seconds for the OS to be loaded. There are several kinds of methods for shortening such long booting time. First, we build up the RAID to increase the throughput of the hard disk, or we add more cache memory on the hard disk. But we can't see any significant improvement in shortening the booting time due to mechanical storage media limitation. Second, we may be able to shorten the loading time by using “Suspended to RAM” instead of “Turning off system physically” as well. All the relevant OS data could be saved into the system memory while we pretend to turn off the system, and these data could be reloaded directly when turning on the system, shorten the long loading time, let the PC booting just like other current consumer electronics have done.
Extra power is needed when we are using “Suspended to RAM”, therefore; we redesign the circuit to reduce the standby power consumption of a PC. First, we use CMOS as the current switch, thus avoiding the static current consumption between chips or modules, and we turn off the USB, PS/2 interface and network controller power supply with the USB, PS/2 and LAN waking-up function disabled. Second, we turn off the termination resistor power supply for the memory modules. Third, we use the high-efficiency pulse width modulation power regulator to replace the linear power regulator. Fourth, we enlarge the value of the divider resistors for the reference voltage to reduce the leakage current. Overall, these improvements reduce the standby power consumption to 0.7 watts from 2.4 watts. In addition our design shows that the PC can be turned on within 3 seconds by reloading the OS in the DRAM.
中文摘要
英文摘要
誌謝
表目錄
圖目錄
符號說明
一、 導論
1.1 研究動機
1.2 研究目的
1.3 論文架構
二、 研究背景
2.1 硬體式多媒體播放系統
2.2 Linux多媒體播放系統
2.3 BIOS多媒體播放系統
2.4 建立磁碟陣列改善硬碟機效能
2.4.1 磁碟陣列架構分析
2.4.2 磁碟陣列實驗與比較
三、 研究方法
3.1 考慮因素
3.2 使用快閃記憶體改善硬碟機效能
3.3 以系統待機取代實體關機機制
四、 研究結果
4.1 使用快閃記憶體改善硬碟機效能
4.1.1 Windows SuperFetch
4.1.2 Windows ReadyBoost
4.1.3 Windows ReadyDrive
4.1.4 PCIE Flash Disk系統架構分析
4.1.5 PCIE Flash Disk Card架構分析
4.1.6 PCIE Flash Disk效能測量
4.1.7 BIOS開機時間的分析與改善
4.1.8 BIOS以及PCIE Flash Disk開機時間的改善
4.2 以系統待機取代實體關機機制
4.2.1 待機電源架構分析與測量
4.2.2 電壓調節器耗電量測量
4.2.3 待機電源架構的改善
4.2.4 關閉USB、PS/2介面以及網路晶片電源
4.2.5 將LDO電壓調節器換成PWM電壓調節器
4.2.6 關閉LDO2電源
4.2.7 加大參考電壓分壓電阻值
4.2.8 改善電源LED指示燈架構
4.2.9 改善後的功率消耗
4.2.10 其他產品比較
五、 結論與未來工作
5.1 未來研究工作
參考文獻
附錄
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