200823437 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種自動水平調整裝置，特別是關於一 - 種具有液體水平儀之自動水平調整裝置。 ^ 【先前技術】 水平調整裝置顧名思義就是用來測定待測物體的面 或線是否處於水平狀態，並藉由裝置機構之配置以調整待 • 測物體至水平狀態，隨著科技產業技術的發達，一般需要 水平精確度的電子裝置如投影機、掃描器等皆配置有一水 平調整裝置。 請參照第1圖。第1圖係顯示習知水平調整裝置之俯 視圖。如第1圖所示，習知的水平調整裝置係於一電子裝 置的基座10下方配置有四顆調整鈕12，當使用者欲調整 電子裝置的水平狀態時，則需手動旋轉調整鈕12的高度， @ 再藉由使用者的視力去判斷電子裝置是否已達到水平狀 態。然而，上述的水平調整裝置非常易受環境或使用者的 影響而使得電子裝置的水平狀態不易達成，例如電子裝置 會受到所擺設的桌面或地面的傾斜影響，若以使用者的視 • 力去判斷其水平狀態準確度較低，此外，為了將電子裝置 調整至水平狀態，電子裝置會依所擺設的環境變遷，每次 使用時皆須以人力手動去旋轉調整鈕12，而當前一個使用 者調整過的調整鈕12高度，下一個使用者可能會依其主觀 的視力判斷又t再旋轉調整鈕12，如此亦造成使用者諸多 200823437 不便。 為解決上述問題，台灣專利公告、號472, 479號揭露一 種應用於掃描器的自動水平調整裝置。請參照第2A至2D 圖。第2A圖係顯示習知自動水平裝置40應用於一掃描器 30時之示意圖。第2B至2D圖，係顯示習知自動水平裝置 之變化例的示意圖。如第2A圖所示，習知的掃描器30的 下方具有四支腳座32。當欲利用掃描器30掃描文件時， 必須考慮到掃描器30内電荷耦合元件（CCD)的對焦效养， 故需將欲掃描文件平整地置於C C D的焦距内並確保掃描器 30自身的水平度，才不會導致CCD脫焦，造成文件之掃描 圖形模糊不清，因此，在掃描器30的表面上方裝設有一自 動水平調整裝置40，可用以調整腳座32的高度以確保掃 描器30的水平度。 如第2B圖所示，習知自動水平調整裝置40的表面上 配置有一觸發因子42，例如為水銀或金屬球等可作滑動或 滾動的良導體，當掃描器30傾斜至一傾斜角後，即觸發因 子42的下滑分力大於靜摩擦力時，觸發因子42會開始滑 動或滾動。自動水平調整裝置40的四周具有四組接觸墊 44分別四支腳座32,當某一接觸墊44與觸發因子42接觸 時，可作電性導通，並輸出一訊號至一自動控制系統，以 控制腳座32的伸長或縮短。 由於掃描器30的表面空間是非常有限的，故台灣專 利公告號472, 479號又揭露一種自動水平調整裝置50，其 200823437 # 可有效地縮減自動水平調整裝置50的寬度，如第2C圖所 示，其亦在自動水平調整裝置50配置有觸發因子52及四 組接觸墊54分別對應四支腳座32，而其控制腳座32的原 - 理亦如同上述，故此處不再多加贅述。 • 當然，有些掃描器的下方僅設有三支腳座，由於在幾 何關係中三點即可形成一共同平面，為了對應於僅具有三 支腳座的掃描器外型，台灣專利公告號472,479號又揭露 φ 一種三角形之自動水平調整裝置60，如第2D圖所示，其 亦在自動水平調整裝置60配置有觸發因子62及三組接觸 墊64分別對應三支腳座，而其控制腳座的原理亦如同上 述，故此處亦不再多加贅述。 然而，上述水平調整的方法僅能調整如掃描器之電子. 裝置至一約.略水平狀態，例如當電子裝置於所擺設環境的 傾斜角度無法使得上述觸發因子42、52或62大於其靜摩 ^ 擦力時，則自動水平裝置40、50或6(l·將無法達到自動水 平調整的效果”此外，由於習知的自動水平調整裝置40、 50及60需藉由腾發因子42、52及62是否接觸到揍觸墊 44、54及64才可以對電子裝置作水平調整動作，即當控 制腳座使得觸發因子42、52及62不接觸到接觸墊44、54 及64即為水平狀態，此也會造成電子裝置位於非水平狀態 而自動水平調整裝置卻顯示電子裝置處於水平狀態的情 況，故一準確度高、使用性方便的自動水平調整裝置，將 是業界亟欲開發之產品。 200823437 【發明内容】 鑒於以上的問題，本發明的主要目的在於提供一種自 動水平調整裝置，其係配置於一電子裝置中，用以調整電 子裝置之水平。 依據上述之目的，本發明之自動水平調整裝置包含有 一液體水平儀，其係呈一密封之管體，管體内填充有一液 體及一氣泡；一氣泡位置偵測模組，其包含有複數個光 源，配置於液體水平儀之一侧以及複數個氣泡偵測電路， 對應於該些光源配置於液體水平儀之另一侧，且該些氣泡 偵測電路分別具有一光偵測器，用以接收對應之該光源所 發出之光線並輸出一氣泡偵測訊號，以及一開關元件，電 連接於光偵測器，用以接收氣泡偵測訊號並輸出一對應之 開關訊號；一控制單元，電連接於氣泡偵測電路之開關元 件，用以接收開關元件所傳來之開關訊號，並輸出一水平 調整訊號；以及一驅動單元，電連接於控制單元，用以接 收控制單元所傳來之水平調整訊號，以調整電子裝置之水 平狀態。 ^ 依據本發明之自動水平調整裝置不僅可防止因電子 裝置所應用環境下水平度不佳所造成使用不便的情況，大 幅提升電子裝置的使用品質，且不需經人力手動調整，亦 不需靠使用者之視力去判斷電子裝置的水平狀態，可精確 地確認電子裝置的水平度，而不受使用環境的影響。 以上之關於本發明内容之說明及以下之實施方式 200823437 並且提供本發 之說明係用以示範與解釋本發明之原理， 明之專利申請範圍更進一步之解釋。 【實施方式】 . 〃本發明之自動水平調整裝㈣配置於如掃描器、投影 ' 機寸電子裝置上，用以調整該電子裝置至一水平狀態，以 下之闡述將以掃描器作說明。請參照第3圖。第3圖係本 發明之自動水平調整裝置1〇〇之示意圖。如第3圖所示， 馨自動水平调整裝置i⑽包含有一液體水平儀別、一氣泡 位置债測模組120、一控制單元150以及-驅動單元16〇。 本發明之液體水平儀11〇係為一密封之管體，於管體 内充填有-黑色液體112並預留_空間而形成—氣泡114。 本發明之氣泡位置偵測模組12〇包含有複數個光源 以及複數個氣泡偵測電路。於本發明中，氣泡偵測電路與 光源具有相同的數目，且其數目係為奇數，本實施例將以 _ 七個光源U〜L7以及七個氣泡偵測電路12卜丨27以方便說 明本發明自動水平調整裝置丨00之運作原理。此外，本發 明之光源L1〜L7係為LED光源。光源l卜L7係配置於液體 水平儀110之一侧，且於每一光源11〜1^7之間間隔有一間 . 距D，由於本發明光源之數目係為奇數，故光源L4的設置 、 位置會對應於液體水平儀110的中心位置，其他的光源 L1〜L3及L5〜L7則分別彼此相隔間距d而配置於光源L4的 二侧〇 · 氣泡偵測電路12卜127係對應於光源L1〜L7的位置配 200823437 置於液體水平儀110的另一侧，每一氣泡摘測電路I?〗〜ία 中分別配置有一光偵測器P1〜P7、一開關元件Q1〜Q7以及 一固定電壓源Vcc。於本實施例中，光偵測器ρι〜ρ7係為 • 硫化鎘（CdS)之材質所製成之光敏電阻，其係用來接收對應 - 光源L1〜L7所發出的光線強度而轉換為相對應的電流值^ 此外，於本實施例中，開關元件Q1〜Q7係為電晶體，其美 極（Base)係電連接於對應之光偵測器P1〜p7，而其隽= ⑩ （Collector)及射極（Emitter)係分別連接固定電壓源 及接地（Ground)。此外，於本實施例中，固定電壓源 係為3· 3V。當開關元件Q卜Q7接收到每一光偵測器p丨〜= 所傳來之電流時，其所產生的壓差會與固定電源Vcc作比 較使得每一開關元件Q1〜Q7會輸出一對應的電壓開關200823437 IX. Description of the Invention: [Technical Field] The present invention relates to an automatic level adjusting device, and more particularly to an automatic level adjusting device having a liquid level. ^ [Prior Art] As the name implies, the level adjustment device is used to determine whether the surface or line of the object to be tested is in a horizontal state, and the configuration of the device is used to adjust the object to be measured to a horizontal state. With the development of technology in the technology industry, Electronic devices such as projectors, scanners, etc., which generally require horizontal accuracy, are provided with a level adjustment device. Please refer to Figure 1. Figure 1 shows a top view of a conventional leveling device. As shown in FIG. 1 , the conventional level adjusting device is provided with four adjusting buttons 12 under the base 10 of an electronic device. When the user wants to adjust the horizontal state of the electronic device, the adjusting button 12 needs to be manually rotated. The height, @ then by the user's vision to determine whether the electronic device has reached a level. However, the above-mentioned level adjusting device is very susceptible to the environment or the user, so that the horizontal state of the electronic device is not easily achieved. For example, the electronic device may be affected by the tilt of the displayed desktop or the ground, if the user's visual force is used. In order to determine the accuracy of the horizontal state is low, in addition, in order to adjust the electronic device to the horizontal state, the electronic device will change according to the environment in which it is arranged, and the adjustment button 12 must be manually rotated manually for each use, and the current user is currently The height of the adjusted adjustment button 12, the next user may judge according to his subjective vision and then rotate the adjustment button 12, which also causes the user a lot of 200823437 inconvenience. In order to solve the above problems, Taiwan Patent Publication No. 472,479 discloses an automatic level adjusting device applied to a scanner. Please refer to Figures 2A to 2D. Fig. 2A is a schematic diagram showing the conventional automatic horizontal device 40 applied to a scanner 30. 2B to 2D are schematic views showing a variation of the conventional automatic level device. As shown in Fig. 2A, the conventional scanner 30 has four legs 32 below. When the document is to be scanned by the scanner 30, the focus effect of the charge coupled device (CCD) in the scanner 30 must be taken into consideration, so that the document to be scanned is placed flat in the focal length of the CCD and the level of the scanner 30 itself is ensured. The degree of CCD is not defocused, causing the scanning pattern of the document to be blurred. Therefore, an automatic level adjusting device 40 is disposed above the surface of the scanner 30 to adjust the height of the foot 32 to ensure the scanner 30. The level of level. As shown in FIG. 2B, the surface of the conventional automatic level adjusting device 40 is provided with a triggering factor 42, such as a good conductor for sliding or rolling, such as mercury or a metal ball. When the scanner 30 is tilted to a tilt angle, That is, when the sliding component of the triggering factor 42 is greater than the static frictional force, the triggering factor 42 will begin to slide or roll. The automatic level adjusting device 40 has four sets of contact pads 44 respectively and four legs 32. When a contact pad 44 is in contact with the triggering factor 42, it can be electrically connected, and outputs a signal to an automatic control system to The extension or shortening of the foot 32 is controlled. Since the surface space of the scanner 30 is very limited, Taiwan Patent Publication No. 472,479 discloses an automatic level adjusting device 50, which can effectively reduce the width of the automatic level adjusting device 50, as shown in FIG. 2C. It is also shown that the automatic level adjusting device 50 is provided with a triggering factor 52 and four sets of contact pads 54 respectively corresponding to the four legs 32, and the original control of the foot 32 is also as described above, so no further details are provided here. • Of course, there are only three legs underneath some scanners. Since there are three points in the geometric relationship, a common plane can be formed. In order to correspond to the shape of the scanner with only three legs, Taiwan Patent Publication No. 472,479 Further disclosed is a triangular automatic level adjusting device 60. As shown in FIG. 2D, the automatic level adjusting device 60 is also provided with a triggering factor 62 and three sets of contact pads 64 corresponding to three legs, respectively, and the control feet thereof. The principle is also the same as above, so it will not be repeated here. However, the above method of horizontal adjustment can only adjust the electronic device of the scanner to a slightly horizontal state, for example, when the tilt angle of the electronic device in the environment is not such that the trigger factor 42, 52 or 62 is greater than its static state. ^ When rubbing, the automatic horizontal device 40, 50 or 6 (l· will not achieve the effect of automatic level adjustment) In addition, since the conventional automatic level adjusting devices 40, 50 and 60 need to use the evolving factors 42, 52 And 62 whether the contact pads 44, 54 and 64 are in contact with the electronic device for horizontal adjustment, that is, when the foot is controlled so that the triggering factors 42, 52 and 62 do not contact the contact pads 44, 54 and 64, the horizontal state This will also cause the electronic device to be in a non-horizontal state and the automatic leveling device to display the electronic device in a horizontal state. Therefore, an automatic leveling device with high accuracy and convenient usability will be a product that the industry desires to develop. 200823437 SUMMARY OF THE INVENTION In view of the above problems, a main object of the present invention is to provide an automatic level adjustment device that is disposed in an electronic device for adjustment. The level of the electronic device. According to the above purpose, the automatic level adjusting device of the present invention comprises a liquid level meter which is a sealed tube body filled with a liquid and a bubble; a bubble position detecting module A plurality of light sources are disposed on one side of the liquid level and a plurality of bubble detecting circuits, wherein the light sources are disposed on the other side of the liquid level, and the bubble detecting circuits respectively have a light detector. For receiving the corresponding light emitted by the light source and outputting a bubble detection signal, and a switching component electrically connected to the photodetector for receiving the bubble detection signal and outputting a corresponding switching signal; a control unit a switching element electrically connected to the bubble detecting circuit for receiving the switching signal from the switching element and outputting a horizontal adjustment signal; and a driving unit electrically connected to the control unit for receiving the control unit Level adjustment signal to adjust the horizontal state of the electronic device. ^ The automatic level adjustment device according to the present invention is not only preventable Due to the inconvenient use caused by poor levelness in the application environment of the electronic device, the use quality of the electronic device is greatly improved, and manual adjustment of the electronic device is not required, and the user's vision is not required to judge the horizontal state of the electronic device. The level of the electronic device can be accurately confirmed without being affected by the environment of use. The above description of the present invention and the following embodiments of the present invention 200823437 and the description of the present invention are provided to demonstrate and explain the principles of the present invention. The scope of the patent application is further explained. [Embodiment] The automatic level adjustment device (4) of the present invention is disposed on a scanner or a projection electronic device for adjusting the electronic device to a horizontal state. A scanner will be described. Please refer to Fig. 3. Fig. 3 is a schematic view of the automatic level adjusting device 1 of the present invention. As shown in Fig. 3, the automatic automatic level adjusting device i (10) comprises a liquid level meter, a bubble position debt detecting module 120, a control unit 150 and a driving unit 16A. The liquid level 11 of the present invention is a sealed tube body filled with a black liquid 112 and reserved with a space to form a bubble 114. The bubble position detecting module 12 of the present invention includes a plurality of light sources and a plurality of bubble detecting circuits. In the present invention, the bubble detecting circuit and the light source have the same number, and the number thereof is an odd number. In this embodiment, the seven light sources U to L7 and the seven bubble detecting circuits 12 are used to facilitate the description. The operation principle of the automatic level adjusting device 丨00 is invented. Further, the light sources L1 to L7 of the present invention are LED light sources. The light source l L7 is disposed on one side of the liquid level 110, and has a space between each of the light sources 11 to 1^7. Since the number of the light sources of the present invention is an odd number, the setting and position of the light source L4 are set. Corresponding to the center position of the liquid level 110, the other light sources L1 to L3 and L5 to L7 are disposed on the two sides of the light source L4 with a distance d from each other. The bubble detecting circuit 12 corresponds to the light sources L1 to L7. The position is matched with 200823437 and placed on the other side of the liquid level meter 110. Each of the bubble extraction circuits I?~ία is provided with a photodetector P1~P7, a switching element Q1~Q7 and a fixed voltage source Vcc. In this embodiment, the photodetectors ρι to ρ7 are photosensitive resistors made of cadmium sulfide (CdS), which are used to receive the light intensity of the corresponding light sources L1 to L7 and converted into phases. Corresponding current value ^ In addition, in the present embodiment, the switching elements Q1 ～ Q7 are transistors, and the base is electrically connected to the corresponding photodetectors P1 pp7, and the 隽 = 10 (Collector ) and the emitter (Emitter) are connected to a fixed voltage source and ground (Ground). Further, in the present embodiment, the fixed voltage source is 3·3V. When the switching element Qb Q7 receives the current from each photodetector p丨~=, the voltage difference generated by it is compared with the fixed power source Vcc so that each switching element Q1~Q7 outputs a corresponding one. Voltage switch
Vo卜V〇7〇 P °、 於本實施例中，控制單元150係為一 8051單晶片， _ 其係I連接於每一開關元件Q1〜Q7的集極，用以接收每— 開關元件Q1〜Q7所輸出的電壓開關訊號v〇1〜v〇7並輪出一 相對應的水平調整訊號。 於本實施例中，驅動單元160係為一步進馬達，其係 • 電連接於控制單元150，用以接收控制單元150所傳來之 • 水平調整訊號，以調整電子裝置的水平狀態。 本發明之液體水平儀110之氣泡114的長度係設計為 介於間距D與兩倍間距2D之間，即D〈氣泡長度〈2D，以防 止當氣泡114的位置介於兩個光源之間時會照射不到氣泡 10 200823437 114,而液體112係選取黑色液體的目的主要係為了當光源 P1〜P7照射液體水平儀110時，照射到氣泡114與照射到 黑色液體112的地方，光線所產生透光度的落差會更大。 倘若光線照射到的地方係為黑色液體Π2時，透光度會比 較差、光線會比較暗；而當光線照射到的地方為氣泡114 時，則透光度會比較好、光線會比較亮。此外，當光偵測 器P1〜P7所接收到對應光源L1〜L7所發出光線之亮度越亮 時，光敏電阻之阻值越低，反之，則阻值越高。 以下將說明本發明之自動水平調整裝置100的運作原 理。請參照第4A及4B圖並搭配第3圖。第4A圖係顯示電 子裝置未處於水平狀態時，液體水平儀110之示意圖。第 4B圖係顯示經本發明之自動水平調整裝置10 0作動後，液 體水平儀110之示意圖。如第4A及4B圖所示，當電子裝 置向右下方傾斜時5即液體水平儀向右下方傾斜時’氣泡 會液體水平儀110之左侧移動，此時光偵測器P2及P3的 阻值會較低，而導致電晶體Q2及Q3不導通，使得氣泡偵 測電路122及123所分別輸出的電壓開關訊號Vo2〜Vo3為 固定電壓源Vcc之電壓值3. 3V，同時，其餘之光偵測器P1 及P4〜P7的阻值會較高，而導致電晶體Q1及Q4〜Q7導通， 使得氣泡偵測電路121及124〜127所分別輸出的電壓開關 訊號Vol及Vo4〜Vo7為0V。接著，控制單元150會接受每 一氣泡偵測電路121〜127所傳來之電壓開關訊號 Vo；l〜Vo7，並判斷哪一個電壓值為3. 3V，即可知道氣泡114 11 200823437 現在所在的位置，亦即知道現在液體水平儀11〇向哪一侧 傾斜，再輪出相對應的水平調整訊號至驅動單元16〇而調 整電子裝置的對應高度，直至氣泡114移動至液體水平儀 的中^為至為止，或氣泡偵測電路124所輪出的電壓開關 訊號Vo4為3_3V為止，此即表示電子裝置已處於水平狀 態，如第4B圖所示。 本發明之自動水平調整裝置100會於所配置之電子 • 裝置通電時即自動調整電子裝置的水平狀態，當然，亦可 以於電子裝置設置一驅動鈕（未圖示）而電連接本發明之自 動水平調整裝置100,當使用者按下驅動叙時方可自動調 整調整電子裝置至水平㈣，此輯亦不脫離本發明之精 神範疇。 相較於f知技術’本發明之自動水平峨裝可達成以 下之功效：1.可防止因電子裝置所應用環境下水平=不佳 籲所造成使用不便的情況，大幅提升電子裝置的使用品質。 2.不需經人力手動調整，亦不需靠使用者之視力去=斷電 子裝置的水平狀態，可精確柄認電子裝置的水平产，而 不受使用環境的影響。. 又 雖然本發日肢前叙實施_露如上，然其鱗 本 發明。在不稅離本發明之精神和範圍内，所為之更動（始 屬本發明之專利保護關。·本發騎界定之料Γ 4 所附之申請專利範圍。 之保邊鞑圍請爹考 【圖式簡單說明】 12 200823437 第i圖係顯示習知水平調整裝置之俯視圖； 第2A圖係顯示習知自動水平裝置應用於一掃描器時 之不意圖， 第2B至2D圖，係顯示習知自動水平裝置之變化例的 不意圖， 第3圖係本發明之自動水平調整裝置之示意圖； 第4A圖係顯示電子裝置未處於水平狀態時，本發明 之液體水平儀之示意圖；以及、 第4B圖係顯示電子裝置處於水平狀態時，本發明之 液體水平儀之示意圖。 【主要元件符號說明】 10 電子裝置之基座 12 調整鈕 30 掃描器 32 腳座 40 、50 、60 自動水平調整裝置 42 、52 、62 觸發因子 44 、54 ·、64 接觸墊 100 自動水平調整裝置 110 液體水平儀 112 液體 114 氣泡 120 氣泡位置偵測模組 13 200823437 121-127 氣泡偵測電路 150 控制單元 160 驅動單元 L1 〜L7 光源 PI 〜P7 光债測器 Q1〜Q7 開關元件 Vol-VoT 電壓開關訊號 Vcc - 固定電壓源 D 光源間距 14In the present embodiment, the control unit 150 is an 8051 single chip, and the system I is connected to the collector of each of the switching elements Q1 to Q7 for receiving each of the switching elements Q1. ~Q7 output voltage switch signal v〇1~v〇7 and rotate a corresponding horizontal adjustment signal. In this embodiment, the driving unit 160 is a stepping motor electrically connected to the control unit 150 for receiving the horizontal adjustment signal transmitted by the control unit 150 to adjust the horizontal state of the electronic device. The length of the bubble 114 of the liquid level meter 110 of the present invention is designed to be between the spacing D and the double spacing 2D, that is, D <bubble length < 2D to prevent when the position of the bubble 114 is between the two light sources. The bubble 10 is not irradiated 10 200823437 114, and the purpose of selecting the black liquid for the liquid 112 is mainly for the light transmittance generated when the light source P1 PP7 is irradiated to the liquid level 110, irradiated to the bubble 114 and irradiated to the black liquid 112. The gap will be even bigger. If the light is irradiated with a black liquid Π2, the transmittance will be poorer and the light will be darker. When the light is irradiated to the bubble 114, the transmittance will be better and the light will be brighter. In addition, when the brightness of the light emitted by the photodetectors P1 to P7 corresponding to the light sources L1 to L7 is brighter, the resistance of the photoresistor is lower, and conversely, the resistance is higher. The operation principle of the automatic level adjusting device 100 of the present invention will be described below. Please refer to Figures 4A and 4B and match Figure 3. Fig. 4A is a schematic view showing the liquid level 110 when the electronic device is not in a horizontal state. Fig. 4B is a schematic view showing the liquid level meter 110 after the automatic level adjusting device 10 of the present invention is actuated. As shown in Figures 4A and 4B, when the electronic device is tilted to the lower right, 5, that is, when the liquid level is tilted to the lower right, the bubble moves to the left of the liquid level 110, and the resistance values of the photodetectors P2 and P3 are higher. Low, and the transistors Q2 and Q3 are not turned on, so that the voltage switching signals Vo2~Vo3 outputted by the bubble detecting circuits 122 and 123 are the voltage value of the fixed voltage source Vcc 3. 3V, and the remaining photodetectors The resistance values of P1 and P4 to P7 are higher, and the transistors Q1 and Q4 to Q7 are turned on, so that the voltage switching signals Vol and Vo4 to Vo7 outputted by the bubble detecting circuits 121 and 124 to 127 are 0V, respectively. Then, the control unit 150 receives the voltage switching signals Vo; l~Vo7 from each of the bubble detecting circuits 121 to 127, and determines which voltage value is 3. 3V, and then the bubble 114 11 200823437 is now located. Position, that is, know which side of the liquid level 11 is tilted, and then rotate the corresponding horizontal adjustment signal to the driving unit 16〇 to adjust the corresponding height of the electronic device until the bubble 114 moves to the middle of the liquid level So far, the voltage switching signal Vo4 rotated by the bubble detecting circuit 124 is 3_3V, which means that the electronic device is in a horizontal state, as shown in FIG. 4B. The automatic level adjusting device 100 of the present invention automatically adjusts the horizontal state of the electronic device when the configured electronic device is powered on. Of course, a driving button (not shown) may be provided in the electronic device to electrically connect the automatic device of the present invention. The level adjusting device 100 can automatically adjust the adjusting electronic device to the level (4) when the user presses the driving sequence, and the series does not deviate from the spirit of the invention. Compared with the known technology, the automatic horizontal armor of the present invention can achieve the following effects: 1. It can prevent the inconvenience caused by the level=unsatisfactory environment in the application environment of the electronic device, and greatly improve the use quality of the electronic device. . 2. It does not need manual adjustment by manpower, and it does not need to rely on the user's vision to turn off the horizontal state of the electronic device, and can accurately recognize the horizontal production of the electronic device without being affected by the use environment. And although the implementation of the Japanese Orthodox _ is as above, the scale of the invention. In the spirit and scope of the present invention, it is subject to change (the patent protection of the present invention is the subject matter of the patent application of the present invention). Brief Description of the Drawings] 12 200823437 The first figure shows the top view of the conventional level adjusting device; the second figure shows the unintentional application of the conventional automatic horizontal device to a scanner, and the 2B to 2D drawings show the conventional knowledge. 3 is a schematic diagram of an automatic leveling device of the present invention; FIG. 4A is a schematic diagram showing a liquid level of the present invention when the electronic device is not in a horizontal state; and FIG. 4B A schematic diagram showing the liquid level of the present invention when the electronic device is in a horizontal state. [Main component symbol description] 10 Base of the electronic device 12 Adjusting button 30 Scanner 32 Foot 40, 50, 60 Automatic level adjusting device 42, 52 , 62 trigger factor 44, 54 ·, 64 contact pad 100 automatic leveling device 110 liquid level 112 liquid 114 bubble 120 bubble position Detection module 13 200823437 121-127 Bubble detection circuit 150 Control unit 160 Drive unit L1 ~ L7 Light source PI ~ P7 Optical debt detector Q1 ~ Q7 Switching element Vol-VoT Voltage switching signal Vcc - Fixed voltage source D Source spacing 14